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FEATURED CASE STUDIES & LATEST NEWS

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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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Heavy Vehicle Wash Bay

Case Study

Customer: Downer EDI Mining

Location: Tarong, QLD

Specifications & Features:

Downer EDI Mining Pty Ltd

Downer EDI Mining [a division of Downer EDI Limited] has engaged Dowdens Pumping & Water Treatment [Brisbane] to design, manufacture, install and commission a Heavy Vehicle Wash Bay and associated plant treatment equipment at the Meandu Coal Mine located in Tarong, South East Queensland.

Since January 2013 Downer EDI Mining has been providing mining services at Meandu Mine as part of their long-term rolling contract with TEC Coal Pty Ltd, a wholly owned subsidiary of Stanwell Corporation Limited. Downer provides a total mine service to TEC Coal, including mine management, planning, drilling, overburden removal (including dragline and truck-and-shovel operations), coal mining, coal processing, rehabilitation, and maintenance of mobile and fixed plant.

Downer EDI's Heavy Vehicle Wash Bay project tender was won primarily due to Dowdens ability to expertly design / manufacture / install and commission specialised equipment, built in-house & onsite to meet our specific client's unique requirements. With a history of successful installations over the past 15 years within the Queensland Mining Sector, Dowdens is Queensland's premier pumping & water treatment organisation.

Downer's project brief to Dowdens Brisbane was for the design / manufacture / installation and commissioning of a Heavy Vehicle Wash Bay capable of processing a minimum of 5 vehicles per day, with each vehicle taking approximately 1 hour to wash. Meandu Mine required this new Heavy Vehicle Wash Bay to be constructed after the mine had recently purchased a fleet of new generation trucks (KOMATSU 830E Trucks) which are considerably larger in size compared to their existing fleet.

Dowdens Pumping & Water Treatment - Meandu Coal Mine Heavy Vehicle Wash Bay [Tarong, QLD]

Details:

To ensure Meandu Mine continued to meet their Environmental Discharge requirements Dowdens designed and incorporated 4x Settling Pits & 3x Oily Water Separators into the construction of the Heavy Vehicle Wash Bay. In Queensland it is a legal requirement for mine sites to treat (separate) any sludge or oil from any waste water coming from a Heavy Vehicle Wash Bay.

Pictured below you can see the 4x large Settling Pits (empty) that are used to catch / store (via gravity feed) waste water from the Wash Pad area. The waste water generally contains some grease, oil, coal fine and soil (mud). The coal fine, mud and other solid particles washed off the trucks is allowed to settle to the bottom of the Settling Pits - the pits are then intermittently emptied by a Bobcat excavator.

The waste water (still containing grease and oil) is pumped from the Settling Pits via progressive cavity pumps into 3 individual 'Oily Water Separators' to remove the remaining contaminants. Once the waste water has been through this treatment stage it is pumped back into Meandu Mine's network of onsite holding dams to be used in other site extraction and processing applications.

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

Key Project System Components are listed below (click for component specs):

Dowdens Pumping & Water Treatment - Meandu Coal Mine Heavy Vehicle Wash Bay [Tarong, QLD]

 
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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 Dealers. Dowdens are Mackay's ONLY Authorised Grundfos Dealer & Dowdens Rockhampton branch is also an Authorised Grundfos Dealer. 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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Remote Solar Pump & Tank Installation

Case Study

Customer: QLD Cattle Grazier

Location: Kalapa, QLD

Specifications & Features:

A Rockhampton regional cattle grazier (located in Kalapa, QLD) employed Dowdens Pumping & Water Treatment [Rockhampton] to design, install and commission an economical yet efficient pumping solution to supply water for 50 head of cattle in a remote paddock.

The paddock in question has no access to mains electricity or town water so Dowdens needed to find a way to efficiently pump the water drawn from a 12m deep well into a newly installed poly water tank, eliminating the need to use the old onsite windmill. A solar powered pump and controller unit needed to be used.

Nu-Tank RockhamptonDowdens contacted local business Nu-Tank to float the idea of establishing an ongoing Rockhampton-based partnership to manufacture and deliver Dowdens dedicated solar pumping solutions in unison with their locally manufactured reliable one piece water tanks to farmers, graziers and local industry alike.

Working in partnership with Stephen Trail [Manager] from Nu-Tank Rockhampton the Dowdens Pumping & Water Treatment Rockhampton branch were able to co-design, test and develop specialised poly lugs that can be welded to the top of each tank. This has allowed Dowdens wide range of solar panels to be fitted safely and securely to the top of Nu-Tank's dedicated solar pumping water tanks.

"Partnering with Dowdens Pumping & Water Treatment [Rockhampton] has allowed both companies to better service the farming and grazier community with specialised solar pump / tank systems. Combining Nu-Tank's quality storage solutions with Dowdens years of solar pumping expertise has seen the development of our unique and reliable solar pump / water tank products. We look forward to working closely with Dowdens in the years to come supplying affordable solar pump and tank solutions to farmers, graziers and local Rockhampton businesses."

Stephen Trail
Manager - Nu-Tank
Nu-Tank

Dowdens Pumping & Water Treatment - Nu-Tank Remote Solar Tank and Pumping Installation [Kalapa, QLD]

Details:

The solar pumping system was designed to keep overall costs down whilst still delivering a regular supply of water to the cattle with negligible ongoing service or labour required.

A 3HRSS Waterboy submersible solar pump was installed in the onsite well at a depth of approximately 12m. The solar pump then transfers artesian bore water via metric poly pipe to the nearby specially adapted Nu-Tank poly water tank. The tank then gravity feeds a series of troughs throughout the paddock sufficiently watering the 50 head of cattle.

The Nu-Tank PWT3300 15,000L poly water tank was fitted with a PC500 Waterboy pump controller allowing the pumps flow rate and pressure to be easily managed via the easy-to-use electronic interface. The daily flow into the water tank is now approximately 6,000L - which is more than enough to properly water the 50 head of cattle in the paddock.

The top of Nu-Tank poly water tanks are rated to hold a much greater weight than the installed solar panels - meaning the environmental footprint of the entire solar setup was minimised and the grazier saved money on the total project costs.

Key Project Features:


Dowdens Pumping & Water Treatment - Nu-Tank Remote Solar Tank and Pumping Installation [Kalapa, QLD]

 
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Mackay Renal Unit UV Sterilisation System

Case Study

Customer: Queensland Health

Completion Date: 11/02/2014

Location: Mackay, QLD

Specifications & Features:

Dowdens Pumping & Water Treatment have successfully designed, installed and commissioned a specialised Ultraviolet filtration system for the Queensland Health Mackay Renal Unit.

Project Requirements: The original system operated by pumping town water to individual filtering stations where the water would pass through a 5 micron, 1 micron and carbon filter on its way to the dialysis machine (which has an internal reverse osmosis filter).

The issue Dowdens faced was the original system filters were only lasting between 5 - 15 hours, and by this stage they were black and needed to be replaced!

After reviewing detailed water test results, Dowdens designed a compact, reliable system where the existing pump was upgraded, a water softening unit was added to remove iron, calcium and manganese. Large cartridge filters were also installed to pre-filter the water before it entered a dedicated UV steriliser.

Using the above system the Mackay Renal Unit now only needs to replace the systems filters every 7 to 10 days - saving thousands of dollars in ongoing system maintenance costs!

Mackay Community Health Services

Details:

Key Plant Features:

Mackay Renal Unit UV Sterilisation System

 
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Community Pool Filtration System

Case Study

Customer: Longreach Regional Council

Location: Yaraka, QLD

Specifications & Features:

Yaraka Community Pool - Dowdens Pumping & Water Treatment Pool Filtration System InstallationLongreach Regional Council recently engaged Dowdens Pumping & Water Treatment's Mackay & Rockhampton branches to manufacture and install a specialised pool water treatment system for the Yaraka Community Pool in Yaraka (a small town in Central West Queensland located 220 kilometres south of Longreach).

This project began with Longreach Regional Council asking for tender submissions to fully upgrade the Yaraka's Pool onsite filtration & treatment systems. Dowdens Pumping & Water Treatment was successful in winning the tender thanks to our price competitiveness, delivery times and unique in-house fabrication capabilities. On hearing about the tender a representative from the Dowdens Rockhampton branch immediately attended the pool to properly assess and quote the job. It quickly became apparent that a specialised filtration system was needed due in part to the pools remote location (limiting the possibility of regular system servicing), and the extreme weather patterns (high temperatures, dust storms & limited / sporadic rainfall) experienced in Central QLD.

Dowdens then set about designing the new filtration system utilising inhouse Engineering, Workshop Fabrication & Mobile Pool Servicing Departments. The end result was a unique twin-filtration systems that was mounted onto a fabricated galvanised skid to aid in maneuverability, ease of installation & transportation. The skid base was fabricated specifically to fit the existing shed onsite.

Having all the system components plumbed up on a single sturdy base made installation easy as only the Pump Inlet, Pool Water Return and Wastewater Pipes needed to be connected and the system was ready to go. The skid comprised 2x Pool Glass Media Filters, 2x Pool Pumps and 2x Salt Water Chlorinators. The Salt Water Chlorinators are fully automated allowing for round the clock (controlled via sensors) pH and chlorine / acid dosing together with chlorine generation. This has drastically reduced the need for regular onsite water testing and manual chemical dosing at the community pool. On Dowdens recommendation Longreach Regional Council also purchased a Dolphin Robotic Pool Cleaner which has noticeably improved the pools cleanliness.

All design, manufacture, delivery and installation / commissioning was successfully completed by Dowdens well within Longreach Regional Council's delivery deadline of six weeks.

Yaraka Community Pool - Dowdens Pumping & Water Treatment Pool Filtration System Installation

Details:

The Yaraka Community Pool is now clean and ready for summer. The new equipment Dowdens supplied has reduced the need for costly regular maintenance whilst improving the automation of the pools chlorine levels - keeping the pool sanitised and chemically balanced at all times is extremely important for any community pool. Dowdens Pumping & Water Treatment's design philosophy for this project was simple: Cost Effectiveness - Ease of Installation - Simple & Effective System Operation - System Reliability & Delivering Greatly Reduced Ongoing Maintenance Requirements.

Yaraka Community Pool Filtration System ~ Key System Features & Components:


Yaraka Community Pool - Dowdens Pumping & Water Treatment Pool Filtration System Installation

 

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