摘要
研究了曝气生物滤池(BAF)反冲洗污泥的生物相组成、生物活性、沉降特性及絮凝性能。结果表明,BAF反冲洗污泥具有较强的生物活性和絮凝性能,将其作为生物絮凝剂预处理生活污水时,最佳投加量为0.05～0.1体积比(反冲水占混合液体积比),对污水中COD和SS的去除率分别为21.2%～26.8%和34.2%～37.5%,能够达到预处理目的。
Backwashing sludge of biological aerated filter (BAF) was studied with analysis of composition and activity of microbe as well as settling and bioflocculation performance. Results showed that backwashing sludge has great bioactivity and flocculation ability. When the backwashing sludge was used for pre-treatment of domestic wastewater, optimal volume ratio was 0.05~0.1 and removal efficiency of COD and SS was 21.2%~26.8% and 34.2%~37.5% respectively, which can meet the objective of pretreatment.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2006年第9期24-25,共2页
Environmental Science & Technology
关键词
曝气生物滤池
反冲洗污泥
生物絮凝
预处理
biological aerated filter (BAF)
backwashing sludge
bioflocculation
pretreatment
