Performance of Combined Biological Purification Tank-Ecological Floating Raft System in the Treatment of High Urine Content Rural Sewage in Chongming Island
Random disposal of rural domestic sewage has seriously threatened rural environment. Development of new technologies which are suitable for local domestic sewage treatment is the key way out. The combined biological purification tank- ecological floating raft treatment system was studied to treat the high urine content rural sewage in Chongming Island. The results showed that the biological purification tank can effectively complete the organic substance degradation, and the ecological floating raft can further remove the nutriments such as nitrogen and phosphorus. Under the stable operating conditions, the contributing rates for removal of chemical oxygen demand (CODCr), suspended solids (SS), ammonia nitrogen (NH4 +-N), total nitrogen (TN) and total phosphorus (TP) were 78%, 35%, 25%, 37% and 53% respectively in the biological purification tank, and 22%, 65%, 75%, 63% and 47% respectively in the ecological floating raft. Furthermore, this system exhibits many advantages such as footprint, low cost and flexible in operating as well as its viability in rural areas.
high urine content rural domestic sewage Chongming Island biological purification tank ecological floating raft
ZHANG Zengsheng XU Gongdi TIAN Qing CHEN Jihua XI Danli
College of Environmental Science and Engineering,Donghua University,Shanghai 200051,China College of Environmental Science and Engineering,Donghua University,Shanghai 200051,China College o
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
1385-1389
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）