Charcoal biofilter cleans up fertiliser waste gases
Friday, October 15, 2010 - 09:00
in Earth & Climate
Removing the toxic and odorous emissions of ammonia from the industrial production of fertiliser is a costly and energy-intensive process. Now, researchers in Bangladesh have turned to microbes and inexpensive wood charcoal to create a biofilter that can extract the noxious gas from vented gases and so reduce pollution levels from factories in the developing world...