两种处理方法对生活污水处理效果的比较研究

摘要

Domestic sewage was treated by complex microbiological method and chemical flocculants method. The results suggested that effect of microbiological method on removal of COD,NH3-N,BOD was better than chemical flocculants method,the best bacterial suspension and treatment days ware 3% and 8 d,but the treatment effect of chemical flocculants method on TP and SS was better than microbiological method,the best chemical flocculants was 10% .treatment time was 4 h. Results indicated, in wastewater treatment design, utilizing different method for different kinds of wastewater, microbial method and chemical method compound to treat sewage were effective way.%分别采用微生物法和化学絮凝法对生活污水进行处理.结果表明,微生物法对化学需氧量(COD)、氨氮( NH3-N)和生物需氧量(BOD)的去除效果比化学方法好,最佳投加浓度和处理天数分别为3％和8d,而化学絮凝剂法对总磷(TP)和悬浮物(SS)的处理效果优于微生物法,最佳投加浓度为10％,处理4h.在污水处理设计中,必须针对不同性质污水采用不同的方法进行处理,微生物法与化学法复合处理生活污水是行之有效的途径.