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Client: GWM Water, Donald, Australia
Date: October 29, 2018
Info: Community WWTP

The Accel-o-Fac® wind-powered WWTP operated by GWM Water for the community of Donald, Australia has been successfully treating sewage since installation of the upgrade in the Fall of 2018, and with virtually no significant ongoing operating cost.

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The waste stabilisation pond (WSP) based WWTP for the community of Donald, Australia is today equipped with a wind-powered Accel-o-Fac® facultative biological treatment system. The choice of the Accel-o-Fac® system was designed to resolve prior serious issues of overloading and poor processing in the existing system.

Choices That Impact Sustainability

Often the selected option for overloading in a WSP is to add conventional mechanical aeration, either surface or underwater bubbler systems. The downside to these traditional options is the high cost of operation, maintenance and manpower. Those costs often exceed the initial capital costs and continue for years and years.

The appeal of the Gurney Environmental Accel-o-Fac® solution to GWM Water was the well-proven low energy, no ongoing sludge handling or disposal, almost no ongoing maintenance issues or costs, and water of a quality appropriate for potential reuse as irrigation.

 

DATA
Q (avg.): 394 cu. m /day
BOD: 108 kg/day
TSS: 126 kg/day
Ammonia: 14 kg/day

Within the Influent Area:
Surface Loading: 320 kg. BOD/ha/day
Retention Time: 10 Days

 

Previously Anoxic/Septic Overloaded Primary Treatment Cell

Prior to installation of the Accel-o-Fac® retrofit, the WSP primary cell at Donald, Australia was loaded well above what natural reaeration could keep up with (see data block). The pink colour indicated the presence of pink sulphur-producing bacteria indicating anoxic/septic conditions. When the BOD loading exceeds the ability to maintain aerobic conditions within a treatment cell, the powerful aerobic and facultative bacteria become dormant and no longer perform healthy rates of BOD/TSS removal, odour control, sludge digestion and disinfection.

 

Healthy, Well-performing Primary Treatment Cell After Retrofit

The installation of the highly-sustainable Accel-o-Fac® retrofit utilising the wind-powered SERIES 3 Aerators/Mixers restored surplus dissolved oxygen (DO) in the upper portion of the primary cell, thereby activating strong aerobic and facultative BOD/TSS processing, odour control, ammonia-nitrogen removal, sludge control and disinfection. By restoring the upper two biological zones — the aerobic and the facultative — the bottom anaerobic zone can now begin proper digestion of all biosolids, thereby eliminating extra accumulated sludge.

See how Accel-o-Fac® works. Click to enlarge.

 

Extremely Low Manpower and Maintenance

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One of the key benefits of the system for Donald and GWM Water was the need for very little operator attention. There is almost nothing for an operator to do at the WWTP short of mowing the grass in the summer months. Equipment maintenance is reduced to inspections every 3–4 months. Not much else is required making the operator's job truly part time!

Superior Effluent for Water Re-use

By providing a superior, significantly more stabilised effluent, the Accel-o-Fac® system can provide irrigation quality water at an extraordinarily low cost.

Well-proven Performance

The decades of proven performance for the Accel-o-Fac® system in numerous industrial and municipal applications underscore the reliability and robustness of the system. Over and over again, the Accel-o-Fac® system has proven an ability to eliminate sludge issues, reduce CAPEX, OPEX and TOTEX, eliminate odours and provide highly sustainable wastewater treatment.

Elimination of sludge lorries, zero-to-low energy usage, little manpower required, few mechanicals involved — all spells an environmentally conscious and sustainable method of treatment of wastewater.

 

Upgrades — Initial "Quick-Fix" and Total Solutiuon

To solve the immediate issues at the Donald WWTP, a "quick-fix" was installed comprised of the Accel-o-Fac's SERIES 3 windpowered aerators. While this has resolved the immediate issues, Gurney Environmental has also designed a longer term upgrade for the WWTP that addresses issues such as flow patterns, loading and total reductions. As can be seen below, the proposed total upgrade rearranges the cell configurations to provide superior performance overall.

Sample Projects Portfolio

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  • Source Management
  • Wastewater
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  • Burncrooks WTW is located near Strathblane on the outskirts of Glasgow and is fed by a series of reservoirs. It serves a nearby population of more than 50,000. It was identified that the WTW
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  • Following use of an Aero-Fac® system on Sandringham Estate for 6 years, Gurney Environmental was contacted by the Crown Estate to examine solutions for Windsor Estate and Cumberland Lodge complex. The old 1960-era filter
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  • Southern Water's Weir Wood Reservoir is a 1.5-mile (2.4 km) long stretch of water storage, situated close to Forest Row, East Sussex, England, on the north-western margins of Ashdown Forest. In 2016 Gurney Environmental
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  • The success of Anglian Water’s wwtp at Sutton St James prompted the company to install three additional Aero-Fac® systems in treatment works including one at East Harling in Norfolk. The decision to choose the
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  • For the Errol project, siting the project did not require consideration of access roads for sludge lorries due to the uniqueness of the Aero-Fac® system.
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  • Early in 2013 United Utilities placed its first order for the unique ResMix 'source management' system following successful use of the system by Scottish Water since 2009 and over 15 years in Australia.
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  • The Accel-o-Fac® wind-powered WWTP for the village at Holkham Estate, England has been treating sewage since the spring of 2006, and with virtually no significant ongoing operating cost.
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  • Accel-o-Fac® wastewater treatment upgrade to the Harbour View WWTW located just outside Kingston Town, owned and operated by the National Water Commission.
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  • The Aero-Fac® Sludge Digestion System (SDS) at Sandringham solves the issues of sludge handling and disposal, as well as peak flow and load issues.
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  • Accel-o-Fac® wastewater treatment system for the Severn & Wye Smokery in Gloucestershire providing a zero carbon footprint strategy for the business.
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  • Accel-o-Fac® upgrades at South Gippsland Water for implementation at two of their wwtp's located just outside Inverloch, Victoria in Southeastern Australia.
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  • In July 2016, Gurney Environmental installed a 2nd installation of the ResMix 5000cc ‘source management ‘ system for Welsh Water at Llangdegfedd Reservoir in Wales.
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  • Welsh Water installs first ResMix 5000cc Source Management System at the Pontsticill Reservoir to improve water quality prior to treatment works.
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    • Source Management
  • The Accel-o-Fac® wind-powered WWTP operated by GWM Water for the community of Donald, Australia has been successfully treating sewage since installation of the upgrade in the Fall of 2018, and with virtually no significant
    Read More
    • Wastewater

What Our Clients Say

Aero-Fac® Wastewater Treatment System

"The Aero-Fac system at Windsor has to date met and exceeded our consent discharge levels, and we have been very happy with the system installed."

Andrew Dunning, The Crown Estate Windsor

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