Operation of high performance elutriation-type sludge fermenter and feasibility for its application

摘要: The performance of a novel fermentation process, adopting sludge blanket type configuration for higher hydrolysis/acidogenesis the municipal primary sludge, was investigated under batch and semi-continuous conditions with various pH temperature conditions. This acid elutriation slurry reactor provided system short HRT (5 days) acidogenic effluent quality 9 thermophilic () hydrolysis revealed to be significantly dependent on seasonal effects characteristics but little impact acidogenesis. Based rainy season at optimum conditions, VFA production recovery fraction were 63%. As byproducts, nitrogen phosphorus releasing , respectively. For mass balance in full-scale plant() based season, non-VFA(as COD) resulting an increase organics nutrients influent sewage. economical benefit from this process application estimated about $67 per sewage except energy requirements also, better benefits can expected during dry season. Also, results that has additional advantages such as pathogen-free stabilized solids production, excellent control benefits.