HoSt will build a biogas upgrading installation for the regional water authority ‘Hoogheemraadschap van Delfland‘, one of the 22 Dutch water authorities. The installation will produce green gas at the ‘De Groote Lucht’, Waste Water Treatment Plant (WWTP) in Vlaardingen. The first green gas is expected to be injected into the gas grid in October 2017.

The biogas upgrading system has a capacity of 350 Nm³/hour biogas. Using HoSt’s proven membrane treatment technology, the produced biogas at WWTP ‘De Groote Lucht’ is upgraded to a methane-rich product gas, also known as biomethane or green gas. The production of the high-quality green gas contributes to the reduction of CO2-emissions at the WWTP, where it is fed directly into the natural gas grid.

Improving sustainability

The wastewater treatment plant produces annually, 1.9 million m3 of biogas, which is currently being converted into electricity and heat using existing gas engines. HoSt will replace these gas engines with its biogas upgrading installation, delivered in a 40 ft. compact container. The existing engines produce a surplus of heat that cannot be utilised and is therefore wasted. The biogas upgrading system, on the other hand, captures all of the available biogas energy in the form of grid quality green gas and because of this, the total efficiency is maximised. With this project, HoSt is playing a key part in improving the sustainability of Delfland.


Location Vlaardingen, The Netherlands
Start engineering March, 2017
Capacity 350 Nm³/hr raw biogas
215 Nm³/hr biomethane
Methane concentration raw biogas 55%
Methane concentration product gas > 89% (Dutch low calorific natural gas)
Efficiency 99,5%

More information

Do you want to receive more information on our biogas upgrading technology or do you want to find out what HoSt can do for you? Don’t hesitate to contact us through or call us on +31 (0)53 – 460 90 80.