摘要
针对吐哈油田某采油区生活点污水水量小、水质不稳定且当地具有大面积可用地的特点,选择了以水平潜流人工湿地为核心处理单元的污水处理系统进行工程示范研究。结果表明,人工湿地污水处理系统能够很好地满足西北采油区生活污水的处理要求,对SS、COD、BOD5、氨氮的平均去除率分别为95%、75%、75%和95%,出水BOD5的平均浓度能够保持在10 mg/L以下,出水水质完全满足绿化用水要求。通过合理设计,该处理系统能够达到出水及污泥的双重绿化回用,实现污染零排放,且系统运行费用低、管理方便。示范工程充分体现了可持续化的设计理念。
A wastewater treatment system with horizontal subsurface-flow constructed wetland as the main process was used to treat the domestic sewage which was characterized by small quantity and variable sewage quality, at one resident site of the Tuha Oilfield, where the usable land is ample. The results show the constructed wetland system can satisfy the treatment requirement of the domestic sewage in northwest oilfield, and the average removal efficiencies of SS, COD, BOD5 and NH3 - N are about 95%, 75%, 75% and 95% respectively. The average concentration of BOD5 in the effluent is less than 10 mg/L, and the effluent quality can meet the requirement for landscaping water. Through the reasonable design, the effluent and the sludge from the treatment system are both reused for landscaping, achieving zero pollution discharge. The treatment system has low operation cost and easy management. The demonstrative wastewater treatment system embodies the sustainable design concept.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第11期88-91,共4页
China Water & Wastewater
关键词
生活污水
水平潜流湿地
示范工程
sewage
horizontal subsurface-flow wetland
demonstration project
