Odour abatement in sewage water: A tree based biological approach

An investigation has been carried out to develop a biological treatment technology for the removal of odourous compounds from domestic sewage water. Under aerobic condition, free molecular oxygen is used by microbes as electron acceptor and produce water. Under anaerobic condition, if neither oxygen nor nitrate (NO3 - ) is present, microbes tend to use sulphate (SO4 2- ) as electron acceptor and generate volatile H2S.