Condensate, produced when gas from downdraft biomass gasifier is cooled, contains organic compounds that inhibit nitrifiers. Treatment with activated carbon removes most of the organics and makes the condensate far less inhibitory. The condensate from an optimised two-stage gasifier is so clean that the organic compounds and the inhibition effect are very low even before treatment with activated carbon. The moderate inhibition effect relates to a high content of ammonia in the condensate. The nitrifiers become tolerant to the condensate after a few weeks of exposure. The level of organic compounds and the level of inhibition are so low that condensate from the optimised two-stage gasifier can be led to the public sewer.
|Title of host publication||Proceedings of 1. World Conference and Exhibition on Biomass for Energy and Industry|
|Place of Publication||Sevilla, Spain|
|Publication status||Published - 2000|
|Event||1st World Conference and Exhibition on Biomass for Energy and Industry - Sevilla, Spain|
Duration: 5 Jun 2000 → 9 Jun 2000
|Conference||1st World Conference and Exhibition on Biomass for Energy and Industry|
|Period||05/06/2000 → 09/06/2000|