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Client: Crown Estate
Date: September 14, 2011
Info: Municipal and light industrial WWTP

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 works in the middle of the Great Park at Windsor needed replacement. Wastewater from Cumberland Lodge Conference Centre and a small housing complex created problems with intermittent flow and load due to the nature of the wastewater source. The design population was 500 pe.

Gurney Environmental designed a two cell Aero-Fac® system to treat the wastewater from Cumberland Lodge and the housing complex to meet quality suitable for discharge into Great Meadow Pond.

Gurney Environmental Ltd. offered a full design solution and worked with the Crown Estate on the delivery of the project from start to completion.

Constructed price for the Aero-Fac® system solution was more competitive than an equivalent package plant. More importantly to the owner, the Aero-Fac® system was able to meet the concerns of intermittent flow and long-term operating and maintenance costs. Aero-Fac® simply offered a more sustainable solution.

The Aero-Fac® system at Windsor is constructed from earthen cells and eliminates the cost and complexity of sludge handling/disposal. All solids are contained within the system with the biosolids anaerobically digested on an ongoing basis. Fast track construction allowed the new facility to be built within the period from August to mid October 2010.

The Aero-Fac® system uses a combination of design elements and specialised equipment. A very low energy diffused air aeration system is used to provide the correct environment for the facultative biological process. Wind powered aeration units enhance the treatment and reduce the blower running cost, which is controlled by a DO probe to operate only as required. When in operation, the blower uses only 4.7 kw of energy.

As compared to the previous facility, the operator now has less to do than before. Operation and maintenance is comprised of mainly visual inspections and monthly cleaning of the DO probe. The rest of the system requires very little else in the way of ongoing maintenance. The overall operation of the facility is mostly self-operating.

The Aero-Fac® system meets today’s wastewater treatment requirements through lower CAPEX, low operating costs, use of renewable energy, elimination of sludge handling/disposal, simple maintenance and operation, plus a low carbon footprint.

The Aero-Fac® system is truly a win-win-win for the Crown Estate.

Sample Projects Portfolio

  • All
  • Source Management
  • Wastewater
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  • Title
  • Date
  • Yorkshire Water's first new WwTP in many years is a No-Odour, No Sludge Aero-Fac® WwTP for the area around Withernsea. The new 15,000 population equivelant (PE) WwTP has been successfully treating sewage whilst automatically
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    • Wastewater
  • The No-Odour, No Sludge Aero-Fac® WwTP operated by Northumbrian Water for the area around Waren Mill has been successfully treating sewage whilst automatically handling flow/loading fluctuations of up to 10x due to local tourism,
    Read More
    • Wastewater
  • 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
  • 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
    Read More
    • Wastewater
  • Accel-o-Fac® wastewater treatment upgrade to the Harbour View WWTW located just outside Kingston Town, owned and operated by the National Water Commission.
    Read More
    • Wastewater
  • Welsh Water installs first ResMix 5000cc Source Management System at the Pontsticill Reservoir to improve water quality prior to treatment works.
    Read More
    • Source Management
  • In July 2016, Gurney Environmental installed a 2nd installation of the ResMix 5000cc ‘source management ‘ system for Welsh Water at Llangdegfedd Reservoir in Wales.
    Read More
    • Source Management
  • 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.
    Read More
    • Wastewater
  • 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
    Read More
    • Wastewater
  • 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
    Read More
    • Source Management
  • The Aero-Fac® Sludge Digestion System (SDS) at Sandringham has solved the issues of sludge handling and disposal, as well as peak flow and load issues for over 15+ years.
    Read More
    • Wastewater
  • Accel-o-Fac® wastewater treatment system for the Severn & Wye Smokery in Gloucestershire providing a zero carbon footprint strategy for the business.
    Read More
    • Wastewater
  • Accel-o-Fac® upgrades at South Gippsland Water for implementation at two of their wwtp's located just outside Inverloch, Victoria in Southeastern Australia.
    Read More
    • Wastewater
  • 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
    Read More
    • Source Management
  • 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.
    Read More
    • Source Management

What Our Clients Say

Aero-Fac® Wastewater Treatment System

"For 20 years the Aero-Fac@ system at Errol has met our consent discharge levels, had no odour issues and we have not required any sludge removal. Although it was not such a high consideration 20 years ago, Errol also supports Scottish Water’s moves to becoming carbon neutral."

Robert Dey, Scottish Water

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