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FEATURED CASE STUDIES & LATEST NEWS

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GRUNDFOS Pumps Double Warranty Promotion

Wednesday, 19 July 2017
GRUNDFOS Pumps Double Warranty Promo now at Dowdens Pumping & Water Treatment

GRUNDFOS are so confident their pumps are the most reliable on the market they are offering free DOUBLE WARRANTY (as part of their Business Booster program) to customers who purchase an eligible pump* from a participating Grundfos Authorised Dealer and have it registered instore. Dowdens Pumping & Water Treatment's Rockhampton and Mackay branches are both Authorised GRUNDFOS Dealers and are therefore participating in this exciting promotion.

HOW TO REGISTER FOR GRUNDFOS DOUBLE WARRANTY

All eligible Grundfos pumps* purchased must be registered in-store at either the Rockhampton Branch or Mackay Branch of Dowdens Pumping & Water Treatment (Grundfos Authorised Dealers) from which the pump is purchased from in order to qualify for DOUBLE WARRANTY. Please be aware that there is no other way to register eligible pump* purchases for DOUBLE WARRANTY!

Once a Grundfos product has been successfully registered in-store by Dowdens Pumping & Water Treatment (Mackay or Rockhampton Branches), customers will receive an email confirmation of the registration sent to their nominated email address. A copy of this confirmation must be kept, in addition to the original Tax Invoice as proof of purchase.

* BELOW IS AN OVERVIEW OF THE ELIGIBLE GRUNDFOS PUMPS:

  • ALL Grundfos 3" (SQ & SQE) Submersible Pumps
  • ALL Grundfos 4" (SP & SPA) Submersible Pumps
  • Selected Grundfos Domestic Pressure Systems (CME Booster, CM Booster Self-Priming, CM-PS, CM Basic, SB, SBA, SB with PMRain, JPB [formerly known as JP / JP-PM], JPB with PMRain, JPC and JPC with PMRain)
  • Selected Grundfos Domestic Wastewater Pumps (SOLOLIFT2 & UNILIFT [CC, KP, AP12, AP35, AP50, AP35B and AP50B])
  • TO VIEW THE FULL LISTING OF ELIGIBLE GRUNDFOS PUMPS BY MODEL NAME CLICK HERE.

GRUNDFOS Pumps Double Warranty Promo now available at Dowdens Pumping & Water Treatment

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Moranbah Township Irrigation System

Case Study

Customer: Isaac Regional Council

Location: Moranbah, QLD

Specifications & Features:

Isaac Regional Council - Dowdens Moranbah Irrigation System

Dowdens Pumping & Water Treatment's Mackay Branch has completed commissioning of the Moranbah 'whole-of-town' Automated Irrigation System. This Dowdens designed irrigation system was delivered to improve the control and ongoing maintenance of township irrigation within Moranbah, QLD.

Isaac Regional Council (IRC) specified a number of key criteria during the tendering process that the system was to deliver. These system criteria included, but were not limited to: provide the ability for night time automatic irrigation to numerous local Athletics Fields that have previously been irrigated manually (using static sprinklers and travelling irrigators) during the day; to replace an aging irrigation system located on Mills Ave. and achieve an overall reduction in labour relating to ongoing maintenance.

Dowdens Mackay successful tender was centred on an innovative Central Control System that enabled remote monitoring and maintenance of the 52 irrigation sites throughout Moranbah. The Dowdens designed controller is based in the Goonyella Road Council Depot. Dowdens Central Control System comprises of a desktop computer, irrigation software, an online weather station and localised communication/data collection infrastructure (routers, modem and radio transmitters/receivers).

This irrigation system is the first time Central Control System architecture has been utilised anywhere in the Isaac Regional Council shire. The system transmits all data collected / collated via several forms of communication i.e. radio frequencies, internet connection (Wi-Fi / 3G) and direct wired connections.

The Dowdens designed Central Control System has the ability to communicate to all Toro Sentinel Controllers via either radio frequency or internet connection. The operator has the ability to program and monitor all controllers via the Central Controller. The operator can set independent watering days, start times and run times for each and every station (valve) connected to Sentinel Controllers. Each day a detailed activity report is sent to all operators notifying them of all system activities, such as no. of actual stations operated, how long for, if any stations recorded abnormal flow (high or low), system communication success or failures, abnormal solenoid coil current (high or low) and the status of all soil moisture sensors. Reports can easily be generated to show the history of all/specific system activities such as those listed above.

A wireless Weather Station and remote Soil Moisture Sensors were installed and connected to the Central Controller to efficiently monitor the regions weather conditions in real-time, and then adjust the systems parameters accordingly. The Weather Station and remote Soil Moisture Sensors are used primarily to prevent irrigation occurring during and after localised rain events and to calculate Evapotranspiration (ET) based irrigation running times. For example the Central Control System is programmed to turn all irrigation off for 3 days (adjustable timeframe) when more than 10mm of rain is received on any 1 day (adjustable timeframe). Weather Station calculates the daily ET and automatically adjusts irrigation duration accordingly (lower ET = lower run time).


CLICK BELOW to hear Alan Pickering (Dowdens Turf Irrigation Design & Engineering Support) discussing the details of the
Moranbah Township Irrigation System with Meecham Philpott from ABC Radio's Tropical North Breakfast program

Dowdens Pumping & Water Treatment - Whole Town Irrigation System [Moranbah, QLD]

Details:

This systems has provided IRC control and monitoring capabilities of 52 irrigation sites throughout Moranbah from one central site. Delivering vastly improved energy and water use efficiencies this Dowdens designed irrigation systems features automatic shutdown of all irrigation during rain events; automatic adjustment of irrigation run times based on ET; daily automatic reporting of all irrigation sites activity; automatic irrigation for 75% of median strips located on Mills Avenue; addition of quick coupler valves to flush lateral lines thereby minimising blockages; automatic irrigation of Little Athletics / AFL Sporting fields resulting in reduced labour required for manual setup of irrigators; reduction of effluent contact with public via system only watering at night; filters on effluent mainline have minimised blockages to irrigation valve and sprinklers, thereby reducing labour required to clear blockages.

Dowdens Pumping & Water Treatment's design philosophy for this project was: Cost Effectiveness - Current Best Practice - Ease of Installation - Simple & Effective System Operation - System Reliability & Delivering Greatly Reduced Ongoing Maintenance Requirements.

Moranbah Township Irrigation ~ Key System FEATURES & Components:


CENTRAL CONTROL ROOM Components

TORO Sentinel Water Management System software - EATON Computer with Printer, Router, UPS - DAVIS Vantage Pro2Plus Weather Station Console (Inside Temperature, Humidity, Barometric Pressure Sensors) - DAVIS Vantage Pro2Plus Integrated Sensor Suite (Anemometer, Tipping Rain Collector, UV Sensor, Solar Radiation Sensor, Outside Temperature Sensor, Outside Humidity Sensor) - WEATHERLINK Software - TORO NSN Support Systems (24/7 Phone Support for IRC operators)

FIELD CONTROLLERS Overview

Field (or Satellite) Controllers were installed at 52 sites throughout Moranbah. These units control the irrigation at their respective sites by direct wire connection to solenoid valves. The field controllers act as stand alone units, operating independently from the central controller. However all of the Controller's programming information comes via the Central Controller. This allows Field Controllers to operate even if the Central Controller is not operational for any reason (loss of power, phone network outages etc.). The Central Controller and Field Controllers automatically communicate at the end of each day to tabulate current programming changes, and again each morning to receive detailed system activity reports. The Field Controllers can be powered by AC if available on site, or DC via by 12V batteries trickle charged by solar panels.

Controllers were either mounted on existing structures or on Dowdens fabricated galvanised steel posts, hinged to allow access from ground level. Each of the 4 irrigated Sports Field sites have a wireless soil moisture sensor attached. The Field Controllers can be set to prevent watering when the soil moisture is above 50% of capacity (all are adjustable). A Mobile Soil Moisture Sensor was also supplied to allow IRC operators to manually test and record soil moisture levels at any location. All Field Controllers have a built in radio for communication to a 'Base' or 'Node' Controller. Base Controllers also have a 3G modem to communicate with the Central Controller.

Moranbah Irrigation System - Field Controllers Overview

MILLS AVENUE - MEDIANS IRRIGATION Overview

This portion of the project involved the design, supply and installation of 17 irrigation systems for all median strips on Mills Avenue, Moranbah (running from Goonyella Road to Clements Street). The existing systems were old, had unreliable battery powered controllers and required high levels of IRC operator maintenance. Most of the medians were generally turf with established large trees, approximately 10 metres wide, ranging anywhere from 10 - 230 metres long.

Each median irrigation system that Dowdens supplied consisted of: DC Sentinel Controller with radio, battery, panel, antenna, hinged pole, connection to existing Effluent mainline, flow sensors, isolation ball valves, solenoid valves / valve boxes, Toro T5 pop-up sprinklers with flexible risers and quick coupler valves placed at the end of the lines for flushing purposes.

Moranbah Irrigation System - Median Strip Irrigation System Overview

LITTLE ATHLETICS / AFL FIELD IRRIGATION Overview

This portion of the project involved the design, supply and installation of an irrigation system for the Moranbah Little Athletics Field. The existing system consisted of a large travelling irrigator, which involved the IRC operator setting up the machine, manually turning it on and off and moving it to each position on the field. This produces uneven watering and often resulted in irrigation needing to undertaken during the day which goes against the applicable effluent re-use guidelines.

The irrigation system that Dowdens supplied incorporated: AC Sentinel Controller with radio & antenna (also incorporating AFL coverage), connection to existing Effluent mainline, 80 mm semi-automatic filter, flow sensors, isolation ball valves, solenoid valves / valve boxes, Toro 640 pop-up sprinklers with articulated risers and a wireless soil moisture sensor was installed on the AFL field to monitor soil moisture content.

Moranbah Irrigation System - Sports Field Irrigation Systems Overview

MAINLINE FILTERS Overview

This portion of the project involved the design, supply and installation of semi-automatic filters at various locations along the effluent mainline. A 200 mm filter was installed in the mainline behind Moranbah High School, a 100 mm filter at Tallon Street and an 80 mm filter at the Athletics / AFL Field. Each of these filters included galvanised steel pipework to allow filters to be mounted above ground, isolation valves, filter, concrete pad and a Dowdens fabricated lockable enclosure. The filters are easily cleaned by opening a valve / turning a handle to allow the suction scanners to clean the entire filter without needing the removal of the element - a huge time saver for the IRC operators.

Moranbah Irrigation System - Effluent Mainline Filtering Systems Overview

 
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Cannonvale Medical Centre Water Treatment System post Cyclone Debbie

Wednesday, 19 April 2017

Severe Tropical Cyclone Debbie made landfall near Airlie Beach on the Nth QLD coast 28th March 2017. It was a slow-moving category 4 system that generated wind gusts exceeding 160 km/hr, heavy rainfall and storm surges along the Nth QLD coastline. 27 hours later, after having tracked inland over Airlie Beach, Proserpine, Cannonvale and Collinsville it was downgraded to a Tropical Low. Dowdens Pumping & Water Treatment's Proserpine Branch is again open for business.

Cannonvale was amongst the hardest hit regions during Cyclone Debbie, so it was no surprise to Dowdens Pumping & Water Treatment's Proserpine Branch to hear Queensland Health had been advised they couldn't be guaranteed potable water supply to their Whitsunday Community Health Centre located in Cannonvale immediately after Cyclone Debbie.

Luckily Dowdens Pumping & Water Treatment's Head Office in Mackay had a portable Ultrafiltration Treatment System available, capable of supplying up to 70,000 litres of potable water per day. Queensland Health and the Whitsunday Community Health Centre in Cannonvale instructed Dowdens Pumping to supply/install the unit immediately on a temporary 'Hire' agreement in-case all mains water supply was lost.

There were two water sources available at the time - the mains water supply or bore water from the Proserpine Hospital. Queensland Health instructed Dowdens to connect the UF Treatment System to the bore water supply, in an effort to remain as self-sufficient as possible post-Cyclone Debbie.

PURION - Water Treatment Products by the Dowdens Group

Dowdens Pumping have previously completed numerous bore water filtration systems treating bore water with our own brand of PURION Iron Removal Filters, so this emergency UF Treatment System was quick and easy to install. PURION Iron Removal Filters pre-treat the bore water before running it through the Ultrafiltration System which then doses the filtrate with liquid chlorine to further disinfect.

Once treated Dowdens Pumping manually transported numerous loads of the potable water from the Proserpine Hospital (where the UF System was installed) directly to the Whitsunday Community Health Centre in Cannonvale, where it was stored in a potable water grade storage tank. The treated water was then used to supply the medical centre. The entire supply/installation and commissioning was successfully completed on Saturday 1st of April - only 4 days after Cyclone Debbie had hit.

If you are ever in need of potable water during a storm or emergency contact Dowdens Pumping & Water Treatment. Dowdens only require access to a reasonable source of water (bore, dam, creek) and power (generator or mains power) and we can guarantee same day potable water supply, in any situation!

Dowdens Pumping & Water Treatment installing a temporary Water Treatment Plant at Proserpine Hospital [Cyclone Debbie 2017]

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Longwall Boost Pump Station

Case Study

Customer: Anglo American - Australia

Location: Moranbah North Coal Mine - Moranbah, QLD

Specifications & Features:

Anglo American Moranbah North Coal Mine

Dowdens Pumping & Water Treatment's Mackay branch was engaged by Anglo American - Moranbah North Coal Mine to design, engineer and build a boost pump station to supply raw water to the longwall area. Dowdens Pumping & Water Treatment designed and built the longwall boost pump station utilising dual variable speed pumps to enable the station to cater for varying duties as the underground workings progress further away from the station.

Anglo American's Moranbah North coal mine began operation in 1998 as an underground longwall mine and currently supplies 4.5m tonne annually of high fluidity premium hard coking coal mainly for export to iron and steel manufacturers in Japan, Korea and Taiwan.

All design, fabrication, installation & commissioning of the longwall boost pump station was undertaken by Dowdens Mackay's in-house Engineering, Fabrication & Workshop Departments and all electrical componentry of the longwall boost pump station was supplied, installed and commissioned by Major Electrical. With a history of successful installations over the past 20 years throughout the Queensland Mining Sector Dowdens Pumping & Water Treatment have the ability to expertly design / manufacture / install and commission specialised pumping and water treatment solutions that are built primarily in-house & onsite to our client's specific unique requirements.

Dowdens dedicated departments of industry trained engineers, draftsmen, project managers, sales staff and tradespeople including fitters, mechanics, polywelders, machinists, plumbers, electricians and boiler makers enable us to offer an unmatched range of world-class engineering solutions for any type of water management project. We truly are Queensland's premier one-stop-shop for pumping and water treatment systems!

"The longwall booster pump station was taken underground into immediate service after only a couple of days. There is normally a one or two month delay with above ground commissioning for all new units. Since the pump powered up after the first run it has not stopped running and is sitting at only 10% duty. The longwall has cut 128,000 tonnes so far which is exceptional. Any future boost pump orders from Dowdens Pumping & Water Treatment will not require any changes to the design or manufacture saving us both time & money."

Anglo American Australia Representative
Moranbah North Coal Mine
Anglo American Australia - Moranbah North Coal Mine

Moranbah North Coal Mine - Longwall Boost Pump Station

Details:

The pump station boosts water pressure to the longwall currently some 6,000m away. Comprehensive 'pre-challenge' testing was completed prior to the station being transported to site, with all parameters being set during this time. Dowdens internal teams of specialised engineers, CAD draftsmen and tradespeople were able to design and build the station on time and to a tight budget, with Anglo American extremely happy with the work undertaken and product supplied.

Key Pump Station Features:

  • All wiring / electrical installation & commissioning on these pump stations was undertaken by Major Electrical Pty Ltd
  • KROHNE flow meter
  • Pump station utilises four pressure transducers to feed real time pumping data to the computer control
  • Two vertical stage pumps directly coupled to two 45kW motors
  • As the booster pump station was dealing with high pressures all piping and flanges have a 3,000kPa rating
  • Pump station fitted with QDS (Quick Detachment System) lift points - allowing the station to be transferable via the underground Line Eimco
  • Touch screen interface enables underground miners access to real time amperage, bearing temperature and flow rate data
  • The unit operates via a PLC (Programmable Logic Controller) and SCADA (Supervisory Control and Data Acquisition) system meaning it can be remotely operated from the mine control room on the surface, or underground via the unit's electronic controls

Total Water Volume Transfer: 30L/sec @ 80m head (currently)


 
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Game changing GRUNDFOS SCALA2 PUMPS now at Dowdens

Tuesday, 14 March 2017

Dowdens Pumping & Water Treatment are your local pump experts and are Authorised Grundfos MASTER DEALERS. Dowdens are Mackay's ONLY Authorised Grundfos MASTER DEALERS & Dowdens Rockhampton branch is also an Authorised Grundfos MASTER DEALERS. Grundfos pumps are market leaders, committed to providing new and innovative products that take comfort and simplicity to the next level, for these reasons we sell and recommend the new SCALA2 domestic pump.

Grundfos has long been regarded for their high quality and reliable pumps. The Grundfos SCALA2 takes design innovation, comfort and simplicity to the next level and is set to be a game changer in domestic boosting. The NEW Grundfos SCALA2 is a robust, fully integrated, self-priming pump suitable for use from both above and below ground water sources. The compact system features a pump, motor, tank, sensor, drive and non-return valve in one compact unit that is quick and easy to install.

The SCALA2 is an energy efficient pump featuring an integrated speed controller that ensures constant water pressure regardless of variations in demand or inlet pressure. For those living in areas of poor power supply or those that are sometime affected by power outages, the SCALA2 can also be run on a generator, due to its ability to be able to handle varying voltages.

The variable speed controller also matches the power consumption with the required water output, which also helps to conserve energy and reduce your energy bills. To protect the pump and help ensure a long life, the SCALA2 includes a range of protective features. Dry run protection automatically stops operation when the water source runs out, to help prevent damage, and the anti-cycling feature detects any unnatural cycling and alerts the user via the protection indicator on the control panel.

Another unique benefit of the SCALA2 is its quiet operation, thanks to the permanent magnet motor and water cooling technology. The high efficiency motor is significantly quieter than traditional speed-controlled motors and the SCALA2 is cooled by the water it pumps, eliminating the need for a noisy fan. This makes the SCALA2 one of the quietest domestic boosting pumps currently available on the market.

For ease of selection, the SCALA2 suits most domestic pressure boosting applications and is capable of supplying water for small single level homes up to larger multi-storey homes.

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Modular Underground Dewatering System

Case Study

Customer: BHP Billiton Mitsubishi Alliance (BMA)

Location: Moranbah, QLD

Specifications & Features:

BHP Billiton Mitsubishi Alliance (BMA)

BHP Billiton Mitsubishi Alliance (BMA) have engaged Dowdens Pumping & Water Treatment's Mackay Branch to deliver a specialised Modular Underground Dewatering System at their Broadmeadow Coal Mine, located approximately 200km South West of Mackay, QLD.

The Broadmeadow Underground Coal Mine is a 'Top Coal Cave Longwall Punch' mine located approximately 30km from Moranbah. Located on BMA's Goonyella open cut mine lease, the Broadmeadow Mine was established in late 2003 and feature's BMA's first application of punch longwall mining - a highly efficient underground technique utilising an existing open cut pit for longwall panel access. Broadmeadow Mine delivered a number of synergies between BMA's underground and open cut operations, including utilisation of the existing Goonyella coal preparation plant capacity, increased flexibility to respond to market demand, improved reliability of supply for customers and optimisation of product quality through selective blending.

The Modular Underground Dewatering System (MUDS) was designed / manufactured and installed by Dowdens Mackay to optimise further development of BMA's Broadmeadow mining operations by improving on-site dewatering efficiencies. The MUDS has been utilised in developing Broadmeadow panels 12 & 13, and will help to advance mine site progression for the entire life of operations. The main objective of this project was to provide a unique, custom built air / electric pump system to improve Broadmeadow's dewatering efficiency. This was achieved through the automation of pumping systems supplied and lowering any ongoing maintenance requirements - thereby saving site operator input, lowering air / power consumption and reducing the need for BMA to further invest in dewatering pump systems.

Dowdens were engaged during the concept phase of this project to provide input and engineering advice to help BMA overcome the many operational challenges this site presented. With intimate product knowledge and via extensive direct consultation 2 unique transportable Quick Docking System (QDS) Fish Tank Dewatering POD designs were developed. Capable of operating under 1,000V power, these modular POD systems required the ability to remain operational during regular power outages, utilising the limited underground supply of compressed air. Each pump station needed considerable storage / retention capabilities (5,000L per POD) and the capacity to operate seamlessly 'in-sequence' thereby delivering zero overflows onto roadways even during loss of underground power.

The composition of the water derived from the mine's development process posed its own transportation challenges with a high water content ratio of rock, coal, trash and coal fines. A solids management system consisting of various sieves, hoppers and tank agitation components was developed and tested to ensure the coal fines and inflow management system was capable of continuous operation, whilst also delivering simplified maintenance and cleaning procedures.

The coal fines and inflow management system was designed with the ability to:

  • Retrofit to existing POD systems recovered from the Crinum underground coal mine
  • Bolster the developing site dewatering fleet - with continuity of all pumps, instrumentation & control equipment used.

With the negotiations finalised, Dowdens proposed the fabrication of 2 Teams of 4x Dewatering PODs. Each Team is led by the newly designed 5m³ EXD QDS transportable roadway POD. 3x additional specially modified 4m³ Elliptical PODs (a combination of EXD & IP66 rated) are then positioned at strategic intervals along the panel as main gate development advances.

Dowdens Pumping & Water Treatment - Modular Underground Dewatering System [Moranbah, QLD]

Details:

Dowdens Pumping & Water Treatment was successful in BMA's tendering process due to:

  • Vast in-house engineering, drafting/design, fabrication, servicing capabilities & proven competencies
  • Over 20 years' experience designing & producing specialised underground dewatering equipment
  • The proximity of Dowdens head office [Mackay] & ongoing presence in the region
  • Providing a competitively priced solution to the clients unique challenges
  • High level of detail provided in the preliminary engineering proposal

After a successful tendering process Dowdens team of engineers and draftsmen immediately began analysing the recovered Crinum mine 4m³ POD design. After much consideration, a plan was established to incorporate all new specifications and functionality required whilst retaining as much of the existing structure as possible, saving both fabrication time and money. This design was carried over to the new generation 4m³ Elliptical PODs.

The Narrow Gauge 5m³ Lead POD had to utilise every inch of its restricted underground foot print to facilitate the 5,000L capacity and extra-large solids screening hopper. All work access steps and ladders were designed to be stowed away to avoid contact by passing machinery. All equipment was to be readily accessible to operators, even while positioned hard against the roadway rib. The complete set of design drawings were completed within 5 days and construction began immediately ensuring delivery was made within BMA's tight project deadlines.

Specially equipped 1,000V electric motors were incorporated in the build to operate custom made hard-metal centrifugal pumps - primarily selected for water transfer between PODs operating 'in-sequence'. The Cast Iron WILDEN T15 Air Operated Double Diaphragm Pump was selected to serve as the auxiliary system for its robustness and relatively small weight-to-flow ratio. The lower weight and lower capital cost of the T15 allowed two pumps to be incorporated into each pump station to serve in duty / standby, or duty / assist mode if required.

A pneumatic control system provides seamless switching between air and electric pumping modes. Non-powered level controls allow maximum tank differential between the air pumps 'on & off' functions saving air consumption. Potential overflows are prevented by a pneumatically operated, inflow regulating valve. Each of the POD inflow manifolds are equipped with 4 auxiliary 50mm pump inputs to integrate localised pumping to the 'outbye' system. Custom built electrical control panels incorporate all EX'd field devices providing temperature, pressure, flow & fault communications via a PLC to the site Citect system. Area lighting and visual pump status indicator lights can be positioned remotely ensuring clear viewing from the mines underground roadways.

Dowdens Pumping & Water Treatment design philosophy for this project was: Cost Effectiveness - Current Best Practice - Ease of Installation - Simple & Effective Plant Operation - Plant Reliability & Reduced Ongoing Maintenance.

Modular Underground Dewatering System's Key Components are listed below:

Dowdens Pumping & Water Treatment - Modular Underground Dewatering System [Moranbah, QLD]

 
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Dowdens Pumping & Water Treatment secure rights to MIRACELL Sewage Treatment Systems

Monday, 1 December 2014

Dowdens Pumping & Water Treatment are proud to announce securing Australia-wide exclusivity of the MIRACELL Rotating Biological Contactors (RBCs) Sewage Treatment Systems. MIRACELL RBCs are the systems are most preferred globally by customers who clearly understand the economic value in purchasing an expertly designed and professionally built Sewage Treatment System!

MIRACELL RBC Sewage Treatment Systems are fully automatic, modular designed Rotating Biological Contactor (RBC) treatment systems specifically designed for sewage treatment applications in capacities ranging from 50 to 20,000 equivalent people (treatment of between 10m3 up to 4000m3 / day). Representing the ultimate in Sewage Treatment Systems, a MIRACELL RBC consumes as little as one fifth of the electricity and requires as little as one third of the space of its competitors based on the activated sludge technology.

Having exclusive rights to MIRACELL RBCs has increased Dowdens capacity to design, supply, install and service large scale Sewage Treatment Systems suitable for use by municipalities, caravan parks, mining camps and a wide range of other commercial / industrial sites where onsite sewage treatment is needed.

Dowdens Pumping & Water Treatment employs an experienced team of WTP and STP Project Specialists comprising of Mechanical and Process Engineers, Project Managers, Draftsmen with 3D Autocad skills and qualified installation and service crews, together with our in-house workshop facilities for the fabrication of steel and stainless steel skids and bases, Dowdens has little to nil reliance on outside contractors when delivering complex Water and Sewage Treatment systems - in essence we are a 'one-stop pumping, water and sewage treatment shop'.

Examples of Dowdens Water and Sewage Treatment projects:


MIRACELL Rotating Biological Contactor Sewage Treatment Systems

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Specialised Pontoon Pumping System

Case Study

Customer: Peabody Energy Australia

Location: Moorvale Coal Mine, QLD

Specifications & Features:

Peabody Energy - Australia

Peabody Energy Australia have engaged Dowdens Pumping & Water Treatment's [Mackay] Engineering Department & Fabrication Workshop to deliver a Specialised Pontoon Pumping System for use at their Moorvale Coal Mine, located 156 kilometres South West of Mackay, QLD. This project presented a number of challenges for the Dowdens Mackay engineering and fabrication staff, including but not limited to an extremely tight delivery timeline of only 8 weeks!

Peabody Energy's Moorvale Mine is an open-cut coal mine that produces low-volatile pulverized coal injection (PCI) coal, coking coal and thermal coal for export markets. The Moorvale Coal Mine is particularly challenging for its operators due to the coal seam being quite narrow with a number of fault lines. This requires excavators often having to work in confined areas. The three piles that make up the Moorvale coal seams are mined independently of each other.

Dowdens Specialised Pontoon Pumping System was needed to provide Peabody Energy more reliable access to good quality Raw Water from an on-site dam. This raw dam water was then to be pumped directly to the onsite Coal Handling & Preparation Plant (CHPP). The existing supply water was limited and of poor quality. Dowdens new pontoon pumping system allowed for an increased volume of water to be pumped from a dam containing higher quality raw water. Subsequently the Specialised Pontoon Pumping System that Dowdens supplied has helped facilitate an improvement in the CHPP's daily operations.

"This particular project had a tight lead & build delivery timeline (approximately 8 weeks). During this time Dowdens were in regular contact with us, the project coordination and regular contact I received from Dowdens Engineers enabled me to better plan for the delivery and installation of the gangway and pontoon, which required a 100 tonne crane to be booked and ready onsite for the unloading and installation.

Dowdens Engineering Department was prompt and professional in helping resolve revisions in the project scope. The design and the way the pontoon was packaged and delivered added to the "Zero Incidents" achievement during the installation of the Pontoon on site. I was satisfied with the product, price and customer service provided by Dowdens Pumping & Water Treatment - Mackay"

Steve Brushe
Site Manager - Projects
Peabody Energy - Australia

Dowdens Pumping & Water Treatment - Specialised Pontoon Pumping System [Moorvale Coal Mine, QLD]

Details:

This project required both Dowdens Engineering Dept. & Fabrication Teams to deliver an innovative solution not previously attempted in-house. It was the first time Dowdens had manufactured 12m length gangways or a pontoon with a total weight of over 6 tonne. The total pontoon weight includes all steel work, flooring, pumps, piping etc. and is displaced using HDPE (high density polyethylene) Floats. The longest gangway Dowdens had supplied previously measured 8m in length, with the largest pontoon previously fabricated weighing in at 4.5 tonnes.

The new system meant Dowdens existing in-house designs had to be modified / improved with new floats being selected in order to safely carry the increased platform weight. Additional weight saving measures were implemented by Dowdens Engineers such as the use of light weight / high strength aluminium mesh flooring.

The timeline to design this pontoon pumping solution, manufacture the components and have them delivered to site was extremely tight. Engineering - Concept Design - Drawings & In-House Fabrication of the unique Pontoon Pumping System was completed & delivered to Moorvale Mine within their specified 8 week time frame!

No other pumping / manufacturing / engineering firm in Queensland are able to deliver such an all-encompassing product solution within the above mentioned time-frame.

Dowdens design philosophy for this project was: Fast Turnaround - Cost Effectiveness - Ease of Installation - Simple Plant Operation - Plant Reliability & Reduced Maintenance.

Key Project Features:


Dowdens Pumping & Water Treatment - Specialised Pontoon Pumping System [Moorvale Coal Mine, QLD]

 
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Hydraulically Operated Hard Hose Irrigator

Case Study

Customer: Stevenson Farming

Location: Victoria Plains, QLD

Specifications & Features:

Monsoon Irrigators - the complete solution for Australian irrigation needs

Dowdens Pumping & Water Treatment [Mackay] have delivered a Height Adjustable Hard Hose Boom Irrigator to a local Victoria Plains, QLD Sugarcane Farm. Farmer Ian Stevenson operates a number of sugarcane farms in and around Victoria Plains, QLD. Due to lack of rainfall during the 2015/16 growing season, and a desire to lower his overall irrigation costs Ian decided to purchase a MONSOON 125mm x 540m Hard Hose Irrigator, combined with a RAPTOR 47/55 Folding Boom to better facilitate irrigation of his cane.

Wanting to purchase his new irrigator from a dependable Australian business Ian contacted Monsoon Irrigators, who in turn engaged the Dowdens Mackay Agricultural Sales Team - one of the most experienced Ag sales teams in Australia, with over 125 years of combined irrigation system design and operational experience between them. As a company that has built its foundation on the servicing and development of agricultural pumping systems, Dowdens Pumping & Water Treatment have the experience to engineer a solution to suit any agricultural application.

Brett Hayes from the Dowdens Mackay Agricultural Sales Team had several phone conversations with Ian to begin the investigation and design process for the most appropriate system. Brett then met with Ian in the Dowdens Mackay branch to present the irrigator and irrigation plan that was best suited to Ian's 800 acre property parcel under cane. Ian's experience over many years of irrigation on his property helped both parties recognise the MONSOON Irrigator Dowdens proposed was a perfect match.

Taking into consideration the terrain, the farms location (near the coastline - a high wind region), existing pump capabilities and source water availability (30psi gravity fed via the Eton Water Supply Scheme) and with Dowdens being Authorised Monsoon Irrigator Distributors Brett suggested the MONSOON 125mm x 540m Hard Hose Irrigator & RAPTOR 47/55 Folding Boom.

Monsoon Irrigators - the complete solution for Australian irrigation needs [Victoria Plains, QLD]

Details:

The Stevenson's farm is located in Victoria Plains near Kinchant Dam, meaning their mains water comes via the Eton Water Supply Scheme. Kinchant Dam, situated near Mt Kinchant, 6kms southeast of Mirani, is the only major storage in the Eton Water Supply Scheme. It was constructed to capture runoff water from the small portion of the catchment of Sandy Creek and water pumped from the Pioneer River. Three water harvesting pump stations are located at Mirani Weir below the confluence of Cattle Creek and the Pioneer River, and divert water into an 8km diversion channel into Kinchant Dam.

As this storage dam is predominately used for the irrigation of sugar cane, water from Kinchant Dam is reticulated through open channels and pipelines to the customers by gravity and relift pumping systems. The channel supply system distributes water from Kinchant Dam through 35kms of open earth channels to the various sections of the scheme including gravity fed channels supplying water to Victoria Plains farmers to the east.

30psi inlet pressure and 20psi pressure at the boom (with an average flow of 12L/sec), meant that when Dowdens Mackay Agricultural Sales Team were designing Stevenson Farming's new low pressure irrigation system they did not need to include an electric or diesel booster pump set. This resulted in drastically reduced operating costs for Stevenson Farming as the irrigator can be operated by one man, 24/7 without the need to supply power or fuel to any booster pumps.

The MONSOON Hard Hose Irrigator & RAPTOR Folding Boom is an extremely efficient and reliable low pressure irrigation system that when installed and operated correctly saves farmers water, energy, time and money - whilst increasing overall farm crop yields. Operating off a low pressure gravity fed line of 20psi (at the boom) meant the MONSOON 125mm x 540m Hard Hose Irrigator combined with a RAPTOR 47/55 Folding Boom was perfectly suited for this Victoria Plains farm.

PROMOTIONAL VIDEO DEMONSTRATING RAPTOR FOLDING BOOM - THIS WAS NOT FILMED AT THE STEVENSON'S FARM

Key MONSOON Hard Hose Irrigator & RAPTOR Folding Boom features listed below:

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For well over 40 years Dowdens Pumping & Water Treatment have been selling & servicing irrigation products throughout Central & Northern Queensland - designing each and every system to improve farming efficiencies, reduce downtime and increase the longevity of pumps / irrigators. CONTACT US today and let us help improve your farms productivity while lowering your overall irrigation operating costs!

Monsoon Irrigators - the complete solution for Australian irrigation needs [Victoria Plains, QLD]
 
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Cattle Feed Paddock Irrigation System

Case Study

Customer: Arabon Seafoods

Location: Bowen, QLD

Specifications & Features:

Arabon Seafoods employed Dowdens Pumping & Water Treatment [Mackay] to deliver a broad acre irrigation system watering their cattle feed pasture located in Bowen, QLD. Arabon Seafoods are a proud Queensland small business specializing in the sale and export of locally sourced live, chilled and frozen seafood.

Dowdens designed an efficient energy and water use irrigation system for Arabon Seafoods that utilises a Valley Two-Wheel-Linear Irrigator - the ideal irrigator for smallholder growers with limited access to electricity - together with a Nelson S3000 Spinner Sprinkler Package, Nelson 110VAC Shut-Off Valve, Valley Autopilot GPS Ready Control Panel and a Yanmar 10kVa 3-Phase Diesel Generator Set.

The Valley Two-Wheel-Linear Irrigator is a fairly standard machine in it's configuration but it's application to Arabon's cattle feed pasture is a departure from local practice. Most irrigation in this region is normally provided by low pressure boom type irrigators which are far less efficient in regards to energy and water consumption when compared to the Valley machine.

The system is required to pump water directly from onsite bores to the Valley Two-Wheel-Linear Irrigator watering 3.5 ha of cattle feed pasture. The irrigator's purpose is to provide water to a 'baleable' hay crop which is periodically onsold to local graziers as stock feed. The installation of a Valley linear irrigator has greatly reduced the number of irrigation runs that Arabon Seafoods has previously undertaken with their smaller boom type irrigator to water the same area of crop. Valley Two-Wheel-Linears deliver the ability to easily tow or swing the machine around to cover more acres.

Valley's 'easy to operate' Valley Autopilot GPS Ready Control Panel has enabled other Arabon Seafoods personnel to operate the irrigator which had always proved difficult in the past using a more dated irrigator. The GPS Ready Valley Autopilot Control Panel allows linears to automatically perform functions similar to a center pivot. The AutoPilot Linear measures the lateral position and direction of travel of the linear, allowing functions to be easily programmed to run automatically.

Dowdens Pumping & Water Treatment [Mackay] are the sole Valley Irrigation Master Dealers for the Mackay / Whitsunday region enabling the best possible pricing and unmatched product support for all of our customers.

Dowdens Pumping & Water Treatment Broad Acre Cattle Feedlot Irrigation System [Bowen, QLD]

Details:

Arabon Seafoods contacted Dowdens Mackay in mid-2015 and requested a site visit and quote. Within a week the Dowdens Ag Sales Team were onsite taking measurements and discussing options with the business owners. A system was designed to suit the area and application, and the quote was delivered. Arabon Seafoods was happy with the design and pricing and instructed Dowdens they would budget for this system in 2016.

Fast forward to mid-2016, working closely with the business owners Dowdens had successfully refined the quote and sourced all materials to be supplied. The purchase order arrived with Dowdens in late May 2016 - the irrigator was delivered to site on Friday 24th of June. The installation commenced Monday 27th of June and the machine was fully operational and commissioning was completed by Wednesday 29th of June.

Dowdens Pumping & Water Treatment's design philosophy for this project was: Cost Effectiveness - Current Best Practice - Ease of Installation - Simple & Effective System Operation - System Reliability & Delivering Reduced Ongoing Maintenance Requirements.

The entire project was overseen and managed by Brett Hayes from the Dowdens Pumping & Water Treatment [Mackay] Agricultural Sales Team.

Key Project Features:


Dowdens Pumping & Water Treatment Broad Acre Cattle Feedlot Irrigation System [Bowen, QLD]

 

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