The subject poultry processing industry is producind high energy content wastewater, which is exploited for biogas and energy and heat production.
In this process, the biogas has to enter the gas motor at the specified relative humidity and level of hydrogen sulphide, to prevent damages in this high cost equipment and ensure reliable and problem-free operation.
For this purpose a chiller unit with flowrate of 600Nm3/h has been installed. The unit removes cools down the biogas and removes humidity, then it is reheated, so as to get a relative humidity of about 50% and is pumped to an active carbon filter, removing H2S, which can harm the generator.