Environment Protection
SDS Weholite CSO Control Chamber
HDPE pipe- and panel-based pre-fabricated CSO system.
Key Benefits
Manufactured from Weholite HDPE plastic.
Robust, excellent hydraulic properties and corrosion resistant.
Bespoke sizes.
Each CSO is manufactured to the specific requirements of the site.
Light weight
Estimated 2 tonnes’ average weight saving over comparable concrete system.
Manufactured offsite.
Build quality and consistency of fit and finish are assured and superior to other production processes.
CSO Wastewater Treatment System
SDS Aqua-Xtract™ is a prefabricated CSO wastewater treatment system, equipped with a unique screening mechanism, which provides a bespoke solution for preventing sewer litter from entering into, and polluting, watercourses and water bodies, whilst still providing the required hydraulic flood relief and guarding against sewer flooding in extreme rainfall events.
SDS Aqua-Xtract™’s removal of sewer litter pollution directly benefits Water Companies’ efforts to improve the quality and aesthetics of the natural water environment and helps counter any negative publicity whilst also reducing the risk of prosecution for a pollution incident.
Manufactured from Weholite HDPE plastic, SDS Aqua-Xtract™ represents a lower capital cost alternative to the traditional concrete CSO, by obviating the need for concrete inside or outside to provide structural integrity and thereby delivering multiple financial, logistical and environmental benefits to Water Companies and their appointed contractors.
With a typical weight, inclusive of pre-fitted steel components such as hydro-slides and penstocks, of less than 2 tonnes, SDS Aqua-Xtract™ is light and easy to install. The ease with which HDPE can be welded allows for exceptionally large chambers to be transported in unit sections and connected on site. Plastic’s flexibility also allows for minor alterations and additions to be undertaken on site with minimal disruption and costs.
Features and Benefits
Unique screening mechanism.
Prevents sewer litter from causing aesthetic environmental pollution and costly clean-up activities and presents a greater opportunity for nature-based treatment solutions to be employed downstream.
Bespoke sizes manufactured.
Each CSO is manufactured to the specific requirements of the site.
Factory production.
Build quality and consistency of fit and finish are assured and superior to other production processes.
Delivery by section.
Avoids transportation issues and helps speed up installation and connection.
Manufactured from Weholite HDPE plastic.
Robust, excellent hydraulic properties and totally resistant to H2S and corrosion.
Modular design.
System is supplied ready to use immediately upon installation and connection.
Longer pipes and wider bores.
All sizes can be catered for, unlike with many other materials.
Light weight.
Estimated 2 tonnes’ average weight saving over comparable concrete system.
Designed to resist groundwater pressures.
Ensures system reliability.
How Does It Work?
SDS Aqua-Xtract™ comprises of a chamber, housing a sophisticated screen mechanism that skims solid waste from the sewer during flood conditions. Captured waste materials are diverted to the wastewater treatment works for onward processing whilst the debris-free water is allowed to discharge according to the permit in force.
The structural integrity of the pipe relies upon its deformation from imposed loads to mobilise the support of embedment material on both sides of the pipe. Its primary structural function is distributing the imposed vertical loads to the surrounding soil; only a small portion of the imposed loads is actually carried by the flexible pipe itself.
When the soil is properly compacted around the pipe, the load-carrying capacity of the pipe-soil system far exceeds the individual capacity of either component by itself. As long as the installation of the pipe is carried out in the correct way and there is a sufficient cover (more than 0.8 m) above the pipe crown, the pipe can easily withstand highways loading. The Weholite pipe and the enveloping soil mass, working in tandem as a composite unit, is one of the most remarkably synergistic systems in engineering.
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Get in touch with us
Address
SDS Limited,
Clearwater House, Castlemills,
Biddisham, Somerset,
BS26 2RE,
United Kingdom
Clearwater House, Castlemills,
Biddisham, Somerset,
BS26 2RE,
United Kingdom