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CSO Group

CSO Group provides turnkey pollution solutions for Air Pollution Control, Wastewater Treatment, Anaerobic Digestion and wider Industrial applications. CSO Group operates throughout the UK and have also supplied equipment into Europe, the Middle East, North America and Australasia.

We provide a full range of odour abatement solutions from simple carbon filters to three stage chemical scrubbing systems, Biofilters, Bio-trickling filters, UV photo-oxidation, regenerative thermal oxidisers (RTOs), and of course our acclaimed Terminodour system for low cost odour control which is particularly suited to dealing with high volume low odour concentrations.

CSO Group provide a wide range of wastewater treatment plant including, 5 different storm tank flushing systems, a wide range of flow regulators, as well as, powered and non-powered CSO screens and the Lackeby Products Roto-Sieve for fine screening and MBR protection. CSO Group are also partnered with BGU of Germany and offer their advanced range of flow limiters and storm tank capacity maximisation systems.

CSO Group are a technology partner with Weber of Germany in the supply and install of thermoplastic chemical handling equipment, including bulk storage and process tanks, road tanker offloading units and chemical dosing cabinets.

CSO Group provide a wide range of products for the AD sector including Biogas Desulphurisation, Pasteurisation systems, Ferric Dosing systems, and a variety of AD ancillary products. The Lackeby range of sludge/sludge and sludge/water heat exchangers compliments our offerings in the AD sector.

CSO Group operate an ISO 9001 QMS system, an ISO14001 EMS system, an ISO45001 Health and Safety management system, Elite CHAS accreditation and are Cyber Essentials certified.

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Ballyronan WwTW (2024)
A modern, sustainable wastewater treatment facility designed to meet increasingly stringent consents for discharging into Lough Neagh
Wastewater Treatment and Sewerage
Marchmont Road Flood Alleviation Scheme (2024)
Flood alleviation measures provided in Edinburgh to combat internal and external flooding in Marchmont Road and Marchmont Crescent
Wastewater Treatment and Sewerage
Ards North Wastewater Improvement Scheme (2023)
The Ards Peninsula is a scenic area in County Down, situated on the north-east coast of Northern Ireland. It separates Strangford Lough from the north channel of the Irish Sea and its coastal towns and villages are popular with day trippers and caravanners alike. By 2020, the wastewater treatment works serving the villages of Carrowdore […]
Renewable Energy
Wastewater Treatment and Sewerage
Warrenpoint WwTW (2023)
Warrenpoint is a small town in County Down, situated on the northern shore of Carlingford Lough, approximately 7 miles south-east of Newry. The shared water of Carlingford Lough marks the border between Northern Ireland and Ireland. Due to its scenic beauty and coastal location, Warrenpoint is popular with day trippers and the town can experience […]
Wastewater Treatment and Sewerage
Ballygowan WwTW (2023)
Ballygowan is a small village situated in County Down, within the Ards & North Down Borough Council area. The towns of Comber and Saintfield are both approximately 4 miles to the north-east, and to the south respectively, with the city of Belfast 7 miles north-west. The 2021 Census indicates that the population of Ballygowan is […]
Renewable Energy
Wastewater Treatment and Sewerage
SWELL - Warrenpoint WwTW (2021)
Warrenpoint is a small town in County Down, situated on the northern shore of Carlingford Lough, approximately 7 miles south-east of Newry. The shared water of Carlingford Lough marks the border between Northern Ireland and Ireland. Due to its scenic beauty and coastal location, Warrenpoint is popular with day trippers and the town can experience […]
Wastewater Treatment and Sewerage
Ballycastle Wastewater Project (2018)
The picturesque coastal town of Ballycastle is located on Northern Ireland’s scenic North Antrim Coast. This popular tourist spot attracts many visitors, who come to take in the beautiful scenery, as well as passing through on their trip along the famous Wild Atlantic Way. Visitors come from all over the world to see the nearby […]
Wastewater Treatment and Sewerage
Alum Waters Sewer Flooding Alleviation Scheme (2019)
As part of the AMP6 Capital Programme, Northumbrian Water Group (NWG) are investing over £1bn in water and wastewater services to provide unrivalled customer service. As part of this programme. Esh-Stantec, a joint venture between Esh Construction and Stantec UK, was commissioned by NWG to investigate the sewer network and to develop a notional solution […]
Wastewater Treatment and Sewerage
Northumberland & Halfway SPS (2020)
Llanelli Wastewater Treatment Works (WwTW) in Llanelli, South Wales, serves the catchment’s 60,000 inhabitants and discharges treated effluent into the Loughor Estuary. The estuary is not only ecologically sensitive, but also a critical natural asset to the local community and to the wider South Wales region. It is a natural capital asset, home to commercial […]
Wastewater Treatment and Sewerage
Medlock Quality Programme (2019)
Medlock Quality Programme is part of United Utilities AMP6 investment programme across the North West and is the third Nereda® Reactor Plant to be operated by United Utilities. The scheme can be split into two distinct areas: (i) the upgrade of Failsworth WwTW to meet the new discharge consent and reduce the volumes of spills […]
Wastewater Treatment and Sewerage
Blackpool South Surface Water Strategy (2018)
The Blackpool South Surface Water Strategy is a £30m scheme aimed at improving bathing water quality along Blackpool’s golden mile. The project tackles the combined challenges of climate change, an aging Victorian sewer network, increasing urbanisation and a responsive catchment. The project’s objectives are the reduction in frequency and quality improvement of spills within the […]
Wastewater Treatment and Sewerage
Anchorsholme Park Storage (2016)
Anchorsholme Park is located on the coast 4 miles north of Blackpool Tower. The storage project is the first of two phases contributing to improving bathing waters on the Fylde coast. The objective of the initial phase is to complete the AMP5 obligations on the Fylde Coast of the “moving towards three spills per bathing […]
Wastewater Treatment and Sewerage
Elmvale Row Sewer Flooding Prevention Scheme (2016)
Elmvale Row is located in the Springburn area in the North of Glasgow City and is comprised of three and four storey residential tenement buildings and residential parking. Land use in the surrounding area includes commercial, residential, parkland and a primary school. The topography of the area and capacity of the existing sewer system has […]
Wastewater Treatment and Sewerage
SAL 172 Stormwater Storage: Part 2 (2016)
The SAL 0172 project formed part of a cluster of schemes in the Manchester area, as part of United Utilities £3.6 billion AMP5 investment programme across the North West. The project was completed by Galliford Try-Costain-Atkins Joint Venture, (GCA JV), as main contractor to United Utilities. Originally covered in the UK Water Projects 2014-2015 edition, […]
Wastewater Treatment and Sewerage

What we do:

Plant & Equipment: Anaerobic Digestion | Biogas Desulphurisation | Conveyors | Decanters | Flow Regulators & Flow Controls | Heat Exchangers | Odour Control | Screenings Handling | Screens | Sludge Treatment Systems | Storm Tank & Sewer Flushing & Cleaning Systems | Tanks & Tank Covers | Ventilation | Waste to Energy Systems | Wastewater Treatment Systems
Process Engineering: Process Engineers
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