摘要
以城市生活污水为对象,通过长期取样和试验分析,研究了水中SS,COD,BOD,总磷,总氮等代表性污染物的存在形态和分布规律。以0.45μm作为溶解物和悬浮物界限尺寸的分析结果表明,城市生活污水中的SS,约65％的COD,60％的BOD,50％的磷和20％的氮均以悬浮物的形态存在,这部分污染物很容易通过沉淀或混凝沉淀的方法有效去除。在研究基础上提出的评价方法和污染物分类及处理性评价模式图有助于污水处理方法的合理选择。
Long-term sampling and analysis were conducted in a domestic wastewater treatment plant for investigation on the characteristics of the representative contaminants in the raw sewage such as SS, COD, BOD, TP and TN. All these constituents were classified into soluble and suspended groups by using a 0. 45 μm membrane filter, and the concentration of each constituent in each group was analyzed. As a result, almost 100% of the SS was found to be suspended matter, as well as about 65% of COD, 60% of BOD, 50% of P and 20% of N. All these could be easily removed by sedimentation or coagulation/sedimentation. A treatability evaluation diagram was proposed for a rational selection of wastewater treatment process in accordance with raw water quality.
出处
《给水排水》
CSCD
北大核心
2004年第9期38-41,共4页
Water & Wastewater Engineering
基金
国家自然科学基金重点项目(50138020)。
