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Gas generators for clean water

Topec has delivered the fourth generator in a row to the Houtrust plant in Scheveningen for waste water treatment specialist Delfluent. The MWM generator sets supply 1200 kWe each.

The Houtrust Waste Water Treatment Plant (WWTP) was originally built in 1967. In the late 1980s and the mid-1990s, components of the factory were adjusted to comply with the (environmental) requirements of the time. Despite this, around 2000 the treatment plant was quite outdated and no longer able to adequately treat the waste water coming from households and companies in The Hague effectively. The Houtrust WWTP could not meet the stricter European requirements for the removal of nitrogen compounds. This prompted a serious overhaul of this waste water treatment plant. Houtrust WWTP was therefore extensively renovated in 2007 and 2008.

Topec has supplied four gas generators in recent years. These generators are used to convert the
methane gas released from the sludge flows from the waste water, into energy. The electricity that is generated by this is subsequently used to treat the incoming waste water and for the transportation of the purified water to the North Sea. In the case of an energy supply outage at the utility company, the gas generators have sufficient capacity to fully treat all incoming water for 90% of the time.

With the current treatment capacity of 430,000 pollution units, the plant can treat the waste water from residents and companies in The Hague area without any issues. On one single site with a surface area of 5 hectares, Houtrust WWTP is able to treat an average of 79,000 cubic metres of waste water per day, which is equivalent to the contents of more than 2,600 tankers.

Vincent van der Hoek, Project Manager at Topec states: “We are currently getting the last set up and running and we hope to be able to deliver the entire project to the client’s satisfaction as quickly as possible. We wish to thank Delfluent for allowing us to contribute to making the electricity required in the treatment process at Houtrust WWTP more sustainable and reliable.”

Scope of delivery:
– 4 x MWM TCG 2020 V12 engines
– 4 x Marelli MJH 500 LA4 generators
– 4 x Gas paths, heat islands, exhaust gas systems, flue gas coolers, lubrication systems and adapted fans.
– 4 x Cogeneration control panels
– 1 x General control panel


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