Nominate/Submit Case Studies

Become a Featured Company

Aerzen Machines

Established in 1864, Aerzen are an International market leader supplying Roots type blowers, screw blowers, screw compressors and Turbo blowers for water and waste water applications. Aerzen have extensive experience in aeration, RGF filter scour and digester/landfill gas positive displacement to the Water Industry. To this end they currently hold Supply Frameworks with many UK Water providers and have supplied all other UK and Irish Water Companies over many years.

Specialising in high volume, low pressure oil-free machines where high reliability is required, units are PED rated and can be ATEX certified. Machines are supplied in accordance with the WIMES Specification.

Package blower and compressor sets can be delivered in acoustic enclosures with intake filter, outlet silencer, drive assembly and monitoring gauges. All items are specifiable to ensure tailored solutions regard low noise levels or paint specifications.

Air blower and screw blowers offer flow rates 30 to 15000 m3hr up to 1.5 barG. Single stage screw compressors can deliver 200 to 15000 m3hr at 1 to 3.5 barG and double stage up to 10 barG.

The Aerzen range of Turbo units has now been installed for many years in UK water treatment applications. The durability of the stainless steel impeller, ensures that blade shape and efficiency is maintained long-term. Complete with an integral invertor and plc, the machines offer high efficiency and reliability. Available in a large range of sizes, the machine are readily available with deliveries typically achievable within 12 weeks from order. Aerzen now offer a UK based service team and spares available within 48 hours – for even the most extensive repair.

With such a range of machines and sizes available Aerzen have developed their ‘Performance3’ concept – offering the most appropriate solution for the application in question. This could mean a combination of technologies to offer the best whole life costs.

Aerzen offer an in-house repair and servicing capability for their whole range of machines, with on-site planned maintenance and hire options.

Ballina Wastewater Treatment Plant (2024)

Upgrade of the existing treatment plant to increase treatment capacity

Horsham New WwTW (2024)

Southern Water’s multi-million pound upgrade to boost the water quality of the River Arun and cater for the significant growth forecast

Lower Gornal STW (2024)

Tertiary treatment upgrades implemented to achieve tightened phosphorus and ammonia consents

Macclesfield WwTW (2024)

Construction of United Utilities first innovative MOB^TM treatment process, to improve the water quality in the River Bollin by December 2024

Monkmoor STW (2024)

UK’s first large-scale installation of MABR technology to enhance ammonia removal

The Woodlands Water Recycling Centre (2024)

The UK’s first treatment plant built for a housing developer specifically to meet Nutrient Neutrality requirements

Loughries WwTW (2023)

NI Water has undertaken a highly sustainable project which replaces wastewater treatment infrastructure for the catchment of Loughries, a small village close to the shores of Strangford Lough. Due to its age, an increasing load from the village, and ever-tightening discharge limits being applied, the existing works was in danger of breaching consents. The project involved […]

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 […]

Tophill Low WTW (2023)

Tophill Low Water Treatment Works (WTW) is a 68 Ml/d water production plant situated in the East Riding of Yorkshire, approximately six miles from Driffield. The works was originally constructed in 1959 and upgraded in the 1990s to the current configuration. The treatment process presently includes pH correction, ozonation, coagulation, DAF clarification, rapid gravity filtration, […]

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 […]

Seedy Mill WTW (2023)

Seedy Mill WTW treats surface water from the Blithfield Reservoir. The existing supply to the works is gravity-fed up to a maximum of 85 MLD. Additional yield could be provided by utilising three in-line booster pumps located at Nethertown. In addition, there are two individual borehole contributions at Seedy Mill and Trent Valley, which can […]

Durleigh WTC (2023)

In 2019, Wessex Water launched a £51 million project to upgrade the Durleigh Water Treatment Centre (WTC) in Somerset, which had reached the end of its operational life. This project was crucial in maintaining the delivery of high-quality drinking water to a population of 44,500 and was part of the company’s long-term water supply strategy […]

Kinnerley WTW (2023)

Kinnerley WTW is located in rural Shropshire, approximately 10 miles north-east of Shrewsbury. The site treats around 4 Ml/d from a single groundwater source, after which it is pumped to Pant DSR to supply. The existing water treatment process on site includes two aeration towers, chlorine gas, three iron and manganese pressure filters, a balance […]

Quin WwTP (2022)

Quin Wastewater Treatment Plant (WwTP) is a small works serving a rural village in County Clare in the west of Ireland. The plant has been operating with a capacity of approx. 650 population equivalent (PE) and is operated and controlled by Irish Water. It discharges into the River Rine which flows to the Shannon Estuary, […]

Ballykelly WwTW (2022)

Built in the 1970s, Ballykelly WwTW was designed to serve a population of just under 8,000. However, the closure of the nearby army barracks in 2008 meant the population was halved to around 3,600, leaving the works both biologically and hydraulically oversized. A hybrid solution, comprising conventional and natural wastewater treatment processes, was designed for […]

Bicester STW (2022)

In recent years the Oxfordshire town of Bicester had undergone significant growth in its population with a further potential growth of 37% in the near future. In late 2019, Thames Water implemented the need for a growth scheme to upgrade various elements of the works to accommodate the forecast population increase. Bicester STW is a […]

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 […]

Hawkhurst South WwTW (2021)

The NEP Quality drivers for the Southern Water’s Hawkhurst South WTW are to meet the new iron and total phosphorus discharge permit limits by 31/12/2021, a tightened ammonia permit by 31/03/2025, and to maintain compliance with all aspects of the current discharge permit at lowest whole life cost. In addition, the population equivalent is set […]

Bray Keleher WTW (2020)

The Bray Keleher Water Treatment Works (WTW) abstracts and treats a maximum of 45 Ml/d of river Thames water and is located on Monkey Island Lane, Bray, between Windsor and Maidenhead. The works is of strategic importance in maintaining supplies to the western region of South East Water (SEW). As part of the final determination […]

Durleigh WTC (2020)

Durleigh Water Treatment Centre is located approximately 2km west of Bridgwater, Somerset and is Wessex Water’s second largest surface water treatment works serving a population of 44,500. The site was originally designed to treat up to 28.5 Ml/d, with water drawn down from the 959,000m3 Durleigh Impounding Reservoir. Raw water quality has deteriorated in recent […]

Morecambe WwTW Catchment Strategy: Part 3 (2020)

Operated by United Utilities, the Morecambe sewerage system collects at Schola Green Wastewater Pumping Station (WwPS) located in the west end of the town. From there, flows for treatment are pumped via a 6km long pipeline to Morecambe Wastewater Treatment Works (WwTW), which is situated to the south, near to the village of Middleton. Both […]

Langsett WTW (2020)

Yorkshire Water’s Langsett Water Treatment Works (WTW) is located 17km north-west of Sheffield in South Yorkshire, on the edge of the Peak District National Park. The WTW treats raw water which is extracted by gravity from two upland impounding reservoirs at Langsett (adjacent to the WTW) and nearby Midhope (approximately 1km south-east of the site). […]

Rugby STW - BioMag Plant (2020)

Rugby STW is situated on the south bank of the River Avon, approximately 1km north of the town of Rugby in Warwickshire. Final effluent from Rugby STW is discharged into the River Avon and needs to meet permits set by the Water Framework Directive (WFD). It provides sewage treatment to a population of circa 107,975. […]

Ardersier WwTW (2019)

Ardersier is located on the Moray Firth some 11 miles east of Inverness. The wastewater treatment works serves the town of Ardersier and the surrounding area including Inverness Airport and Fort George Barracks. It currently serves a population of less than 2,000 but there are significant developments planned in the area with a long-term future […]

Bray Keleher WTW (2019)

The Bray Keleher Water Treatment Works (WTW) abstracts and treats a maximum of 45 Ml/d of water from the River Thames and is located on Monkey Island Lane, Bray which is part way between Windsor and Maidenhead. The works is of strategic importance in maintaining supplies to the western region of South East Water (SEW). […]

Cropwell Bishop STW (2019)

Located to the south-east of Nottingham, Severn Trent Water’s Cropwell Bishop Sewage Treatment Works (STW) serves 700 residential premises in the village and a number of local businesses, including the Cropwell Bishop creamery, which contributes a significant phosphorous loading to the catchment. It also receives pumped sewage flows from the adjacent village of Cropwell Butler. […]

Earl Shilton STW (2019)

Earl Shilton Sewage Treatment Works (STW) is situated in south west Leicestershire and serves a population equivalent of 11,833 comprised mainly from domestic sources from Earl Shilton and Barwell. There has been a STW in this location since the 1960s and the current process workstream includes preliminary treatment, primary settlement, secondary filtration, secondary settlement and […]

Glenlatterach WTW (2019)

Located south of the town of Elgin in the north east of Scotland, Scottish Water’s Glenlatterach WTW is situated in the heart of Speyside, home to some of Scotland’s most beautiful scenery as well as roughly half of all of the whisky distilleries operating in Scotland. Raw water is abstracted from the Glenlatterach Reservoir and […]

Goscote STW (2019)

Goscote STW is an activated sludge process (ASP) works located near Walsall in the West Midlands which serves a population equivalent (PE) of 120,806 (including trade). The site discharges into the River Tame catchment. Its upgrade was key to meet a tighter environmental permit in AMP6, being 10 mg/l BOD, 1.3 mg/l ammonia and 0.2 […]

Inverurie WwTW (2019)

Inverurie Wastewater Treatment Works lies on the banks of the River Don in Aberdeenshire, at the confluence with the River Urie, and serves a current population of approximately 28,000 people with substantial future growth within the catchment forecasted. This project has been initiated by Scottish Water to provide compliance with new nutrient discharge consents under […]

Kendal WwTW (2019)

Kendal WwTW is the main treatment facility for the area servicing a large residential and tourist catchment, with a population equivalent of 82,384. The works has an existing consent of 25 mg/l biological oxygen demand (BOD) 45mg/l suspended solids, 5 mg/l ammonia, and an annual average phosphorus permit of 1 mg/l, with a flow to […]

Lochmaddy WTW (2019)

Lochmaddy is the main town located on North Uist, which is one of the islands forming part of the Western Isles. This project involved the design, installation, construction and commissioning of a new water treatment works (WTW) on a greenfield site beside the existing site. Additionally, some of the works were within South Lewis, Harris […]

Morecambe WwTW Catchment Strategy: Part 2 (2019)

United Utilities’ Morecambe sewerage system collects at Schola Green Wastewater Pumping Station (WwPS) located in the west end of the town. From there, flows for treatment are pumped via a 6km long pipeline to Morecambe Wastewater Treatment Works (WwTW), which is situated to the south, near to the village of Middleton. Both sites have sea […]

Uttoxeter STW (2019)

Situated in Staffordshire, close to the Derbyshire border, Uttoxeter STW serves a mainly domestic population from the town itself. Following catchment modelling, it was determined that there will be significant growth in the population, reaching 24,498 population equivalent in 2035. This increased population would mean that the existing inlet works would not have sufficient capacity […]

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 […]

Dalton Piercy WTW (2018)

Dalton Piercy Water Treatment Works (WTW) supplies an average demand of 32 Ml/d to ~45,000 properties and significant industrial customers in Hartlepool. The current site process includes UV disinfection, sodium hypochlorite dosing and orthophosphoric acid dosing. This article describes how Anglian Water’s @one Alliance successfully applied product-based delivery principles to the Dalton Piercy Manganese and […]

North Wales Sludge Strategy & Five Fords AAD (2018)

Welsh Water set out its vision in its Sewage Sludge Strategy 2040 how it intended to deal with the number one waste management challenge all water utility providers face, the sustainable management and disposal of wastewater sludges. With ever tightening nutrient and heavy metal limits on agricultural usage, and more pressure than ever for companies […]

Great Dunmow Water Recycling Centre (2018)

Great Dunmow Water Recycling Centre (WRC) is located a few kilometres to the east of Stansted Airport in Essex and serves a population of approximately 10,000 people. Due to ongoing capacity limitations and operational issues in the existing works, Anglian Water elected to construct a new treatment plant on the site to serve the current […]

Inverurie WwTW (2018)

Inverurie WwTW is located in Aberdeenshire in the north-east of Scotland and provides sewage treatment for Inverurie and the surrounding area including Blackburn, Kintore and Port Elphinstone. It currently serves a population of 28,000, but Inverurie is one of the most rapidly growing towns in terms of population in the UK, with an estimated population […]

Knostrop Sludge Treatment Facility (2018)

The Yorkshire Water sewage sludge incinerator at Knostrop WwTW is approaching the end of its asset life in AMP7. This, along with high operating costs has driven a business need to review the long-term treatment of sludges in the Yorkshire/Leeds catchment. Following a strategy review, Yorkshire Water Services (YWS) decided to progress with conventional mesophilic […]

Morecambe WwTW Catchment Strategy: Part 1 (2018)

The Morecambe sewerage system collects at Schola Green Wastewater Pumping Station (WwPS) located in the west end of the town. From there, flows for treatment are pumped via a 6km long pipeline to Morecambe Wastewater Treatment Works (WwTW), which is situated to the south, near to the village of Middleton. Both sites have outfall pipelines […]

Northcombe WTW GAC Scheme (2018)

Located near Okehampton, Northcombe WTW supplies a large region of North Devon including Barnstaple, Bideford and South Molton. The works supplies over 88,000 customers, with around half of these relying on Northcombe as their sole supply of water. As standards for water quality change, South West water (SWW) has been issued a notice by the […]

Rivelin WTW - Sirofloc Replacement: Part 2 (2018)

Yorkshire Water Services (YWS) committed to the Drinking Water Inspectorate’s (DWI) compliance date of 31 December 2017 for beneficial completion of a new clarification process at Rivelin WTW. The £25m scheme required the design and construction of a large 82.5MLD buried treatment plant (80m long, 40m wide and 14m high) on the border of the […]

Stanbridgeford STW (2018)

Stanbridgeford Sewage Treatment Works (STW), lies approximately one mile south of the village of Stanbridge in Bedfordshire and as of 2016, the population equivalent (PE) of the works was 15,305 and the domestic population served was 15,051. The treatment works discharge into the adjacent Ouzel Brook, a tributary of the River Great Ouse. Regulations from […]

Stoke Bardolph - Energy Crop AD Plant (2018)

In August 2010, Severn Trent commissioned its energy crop anaerobic digestion plant at Stoke Bardolph, Nottingham. It was built to help power the nearby sewage treatment works using crops grown on contaminated farmland which is not suitable for food production. The energy crop plant was sized to convert 37,000 tonnes of maize silage each year […]

Farlington WTW (2017)

Portsmouth Water’s Farlington WTW dates back to 1909 and provides potable water to more than 280,000 people and many businesses in the Portsmouth and Havant area. Farlington’s supply is derived from the springs, which are believed to be the largest spring source in Europe. In April 2015 Portsmouth Water issued a tender based on an […]

Fluxton & Ottery St Mary STWs (2017)

Fluxton and Ottery St Mary STWs are located in the Otter Valley, East Devon. The town of Ottery St Mary has a population of 4898 and is situated on the River Otter, approximately 10 miles east of Exeter, and the nearby hamlet of Fluxton has a population of approximately 99. The Fluxton site itself is […]

Heigham WTW (2017)

Heigham Water Treatment Works (WTW) is the main supply of water to Norwich and supplies an average of 42Ml/d of water sourced from the River Wensum at several locations. Potable water is pumped into the Norwich Public Water Supply Zone feeding a multitude of storage reservoirs, booster pumps and properties. The main raw water abstraction […]

Hesketh Bank WwTW (2017)

Hesketh Bank Wastewater Treatment Works (WwTW) serves a population of approximately 5,800. The catchment of this Lancashire village is mainly residential and much of the surrounding land is dedicated to agriculture. The treatment works is on the edge of the village and is situated close to the River Douglas, near its confluence with the Ribble […]

Tamar Lakes ‘Q’ Scheme (2017)

Tamar WTW was constructed in the mid 1970s and is located on the Cornwall/Devon border near Bude/Kilkhampton. Raw water is transferred to site by gravity pipework from Upper Tamer Lakes Reservoir. The works has a maximum output of 9.0 Ml/d and treated water is pumped by 2 (No.) sets of on-site high lift pumps to […]

Wicklow Wastewater Upgrade Bundle (2017)

County Wicklow is situated on the east coast of Ireland, south of Dublin. Kilcoole WwTP is located off Sea Road and the surrounding topography is agricultural farmland. The WwTP at Kilpedder is a bordered by woodlands and private dwellings, while access to Redcross WwTP is by a caravan park in Redcross. All three sites are […]

Macallan WwTW (2016)

The Macallan owners, Edrington, have commissioned an iconic new distillery and visitor centre which will see the distillery transformed into a beautifully designed architectural building that embodies The Macallan’s uncompromising approach to quality and luxury. Over time the distillery will also deliver additional capacity to meet the growing global demand for the world famous Macallan […]

Ballynacor Sewage Lagoon Project (2016)

Project Omega is a 25 year Public Private Partnership contract issued by Northern Ireland Water (NI Water) to upgrade, operate and maintain existing wastewater treatment works (WwTW) and wastewater pumping stations (WwPS) at a number of locations across Northern Ireland, equivalent to approximately 25% of the province’s wastewater treatment capacity. The contract also provides a […]

Bakewell STW - Activated Sludge Plant (2016)

Bakewell is located in the heart of the Peak District National Park and as such attracts thousands of visitors each year. Bakewell is a thriving town with a cattle market that trades every Tuesday, a showground that hosts numerous national events each year and is a great base to explore the surrounding National Park. Bakewell […]

Glentworth Water Recycling Centre (2016)

The village of Glentworth is approximately 10 miles north of the city of Lincoln and one mile south-west of Caenby Corner. The water recycling centre (WRC) is located near the village in the West Lindsey district of Lincolnshire, and falls under the control of Anglian Water. Glentworth WRC serves a catchment area of 1250 PE […]

Welcome at AERZEN

Aerzen reactive silencer

3D Animation Air foil bearing

Installation of waste water aeration system within hours

AERZEN Delta Hybrid (Screw Blower)

AERZEN TURBO ISO CONTAINER

Aerzen Rental for all your needs - blowers, solutions. Rental Service

AERZEN Positive Displacement Blower

AERZEN Turbo Blower

Delta Hybrid - AERZEN Screw Blower

Air Blower Retrofit at Wastewater Treatment Works

AERZEN provide increased efficiency resulting in significantly lower OPEX

What we do:

Plant & Equipment: Aeration Systems | Air Blowers | Anaerobic Digestion | Biogas Desulphurisation | Compressors & Blowers | Gas Pipelines | Materials Handling | Package Treatment Plant | Pumps | Refurbishment | Water Treatment Systems

Process Engineering