Truly Sustainable Water & Wastewater Treatment

Innovative, Cost-Effective, Proven Solutions

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  • Our News

    Read our latest news, including industry news, new projects, innovation & technology news plus much more.

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  • Who We Are

    Gurney Environmental has spent decades creating sustainable water treatment technologies.

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  • Wastewater Treatment

    Drive down both CAPEX and OPEX by up to 95% with our wastewater treatment technologies.

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  • Serving 2.5 Million Population City

    Serving 2.5 Million Population City

    Extremely low-energy Accel-o-Fac® system provides treatment for major city of Santa Cruz, Bolivia.
  • Reservoir 'Source Management' Systems

    Reservoir 'Source Management' Systems

    Water Companies and Organisations are adopting the WEARS ResMix 'Source Management' Systems to provide low-cost raw water supply quality improvements.
  • Aero-Fac® WWTP System

    Aero-Fac® WWTP System

    Low Energy Environmental & Sustainable Systems Available For The Treatment Of Wastewater.
  • Aero-Fac® Pretreatment System

    Aero-Fac® Pretreatment System

    Control shock and spike loads whilst self-digesting solids and controlling odours.
  • Wind Powered WW Treatment

    Wind Powered WW Treatment

    The Accel-o-Fac® wastewater tretament system is a Zero-to-Low Energy option that requires almost no ongoing operating costs.
  • Raw Water 'Source Management' Systems

    Raw Water 'Source Management' Systems

    Reduce water treatment plant operating costs by pretreating raw water supplies with sustainable technologies.
  • Aero-Fac® Sludge Digestion System

    Aero-Fac® Sludge Digestion System

    Completely digest biosolids on site with no requirement for haul-away of sludge. Highly cost-effective and sustainable sludge control.
  • Replace Existing Aeration With Wind Power

    Replace Existing Aeration With Wind Power

    Dramatically reduce energy & maintenance by replacing existing aeration with SERIES 3 aerator/mixers from the Accel-o-Fac® system.
  • No-Sludge, Low OPEX Wastewater Treatment

    No-Sludge, Low OPEX Wastewater Treatment

    Aero-Fac® wastewater systems can dramatically cut both CAPEX costs and also reduce OPEX by up to 85%. No sludge, odours and little manpower or maintenance.
  • Highly Effective, Unique Surface Aeration

    Highly Effective, Unique Surface Aeration

    The Gurney Environmental "Tarantula" SERIES 5 surface aerator supplies massive surface shearing action plus almost unlimited deep mixing and aeration.
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Wastewater Systems

Zero-to-Low Energy Options

Choose between multiple options.

Fresh Water Systems

Raw & Potable 'Source Management'

Lower costs at the treatment works.


Advanced Micro Filtration

Solve issues in both waste and fresh water.

Sludge Handling

On-Site Sludge Digestion

Eliminate handling, testing and haul-away.

'Source Management'

'Source Management'

'Source Management' solutions from Gurney Environmental reduce costs of water treatment at the plant, especially under drought conditions.

ResMix 'Source Management'

Sustainable Raw Water Storage Management

Read how many of the UK's Water Utilities & Companies have used ResMix units to solve serious issues.

Units are available in several sizes.

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Client: Crown Estate Sandringham
Date: October 25, 2005
Info: Crown Estate and Community of West Newton

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.

The Royal Estate at Sandringham presented a challenge for wastewater treatment. While the Estate and the adjacent village of West Newton could have a normal population equivalent of 650 residents contributing to the treatment plant, it was the large influx of visitors to the area in the summer months that presented the main concern.

Sandringham Reception Centre

Sandringham is, of course, a very popular spot for tourists. The visitors centre can see a throughput of on average 2,000 people per day during the summer months. With summer events such as the flower show, where attendance could be as much as 25,000 over two days, plus weather and other factors playing a role, no one could accurately predict when the influx would suddenly appear. These very popular events were not something the existing plant type could easily be designed to accommodate.

Gurney Environmental engineers worked with the Estate for over a year on a solution to their needs for wastewater treatment and sludge handling — a solution that would meet modern effluent standards, but could react to sudden peak flows and loads without the need for an operator on hand.

Furthermore, the plant must be odour free, produce no sludge of its own for routine handling and disposal, AND digest all sludge from the existing mechanical plant. Eliminating sludge lorry movements in and out of the plant would save time, noise, traffic on small local roads, money and cut carbon emissions — all in all, a very green approach to total on-site sewage treatment.

A No-Sludge System

The Aero-Fac® SDS system was selected for the Sandringham plant. The existing oxidation ditch was refurbished at the time and integrated into the new scheme. Flows are split between the Aero-Fac® and the ditch with surges in loading being diverted to the Aero-Fac®, thus allowing a nice, uniform flow to go to the less-flexible ditch. All sludge produced by the ditch is sent to the Aero-Fac® cell for total digestion, which eliminates sludge storage, handling and disposal.

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The existing oxidation ditch required routine sludge removal and disposal. The ditch was refurbished as part of the Aero-Fac® SDS upgrade project.


Designing Wastewater Treatment Plants for Real-World Conditions

The Sandringham installation exemplifies one of the major benefits of the Aero-Fac® systems. Whether from storm flows, tourists or industry, many plants can experience massive shock or peak flows and loads. Aero-Fac® has the unique ability to accept these flows with no warning and no operator intervention needed. The SDS version of Aero-Fac® also eliminates sludge processing, handling and disposal issues and costs.

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Top: Construction of the Aero-Fac® SDS cell included a liner. Simple cell construction is quick allowing fast-tracking of projects. Bottom Left: Final treatment cell utilising a single wind/electric powered aerator and a low pressure fan blower. Bottom Right: Final effluent from the cell is highly stabilised and well suited for irrigation.


And Aero-Fac® can do so without the common odours associated with sewage treatment. Eliminating sludge removal, conditioning handling and disposal saves up to 50% of the operating costs of a typical plant, while also eliminating the onerous regulations regarding sludge that are tightening throughout the world.

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Low Ops/Maintenance Requirements

sandringham 8Unlike the old oxidation ditch, the new Aero-Fac® SDS cell requires almost no operator attention or significant maintenance. Occasional inspection and replenishment of the lubrication unit on the windpowered aerator and an annual shot of grease for the diffused air low pressure centrifugal fan blower motor are about it. The blower itself has almost no wear factor since it is low pressure and not a typical positive displacement blower.

Lower Cost Option Solves Problem Better!

When it came to the selection of a new wastewater treatment plant for Sandringham, while cost was one of the concerns, it was the overall extremely low total lifetime cost afforded by the Aero-Fac® system, coupled with its unique ability to handle massive peak loads and flows, and do so without odour, without a visual eyesore and without sludge handling that made the decision obvious for the Estate.

aero sds logo 

Other WW Treatment Solutions

Gurney Environmental offers a wide range of water & wastewater treatment solutions.


Micro Filters

Variable Pore Micro Filters

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Electric & Windpowered.

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Sludge Handling

Sustainable options.

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Baffles & Covers

Covers, baffles and panels.

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Proven Performance Around The Globe

Featured Projects

Over the last few decades, the solutions Gurney Environmental offers have been proven for both performance and cost in a wide variety of applications.

Let Gurney Environmental show you how we have successfully addressed problems with the treatment of both fresh and wastewater..

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Interested? Want to contact Gurney Environmental?

We'll be happy to work with you on ideas to solve your water and wastewater treatment problems.

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