生物生态集成技术去除村镇生活污水TP研究  

A biological and ecological integration technology for removing TP from rural domestic sewage

作　　者：李金中[1] 李学菊[1] 

机构地区：[1]天津市水利科学研究院,天津300061

出　　处：《水资源保护》2013年第2期71-75,共5页Water Resources Protection

基　　金：天津市科技支撑计划重点项目(12ZCZDSF01300);水利部公益性行业科研专项(201101060);农业科技示范推广项目(201101034)

摘　　要：采用物理沉降、固定化微生物、太阳能增氧和人工湿地等多项技术优化集成方法,构建1个功能一体化、景观园艺化、自然生态化的链式生物生态净化系统,并在天津市蓟县刘相营村建成污水日处理能力为4000 m3的示范工程。通过示范工程近1 a的监测表明:在进水TP浓度较高且波动较大的不利条件下,集成工艺对TP的去除率达到95.4%～99.6%,而对COD和TN的去除率可分别达到84.53%～96.74%和88.03%～97.98%,生物生态净化系统出水可稳定达到地表水Ⅳ类水质标准,而且管理维护方便,能耗小,处理成本低于0.15元/m3。A bio-ecological chain purification system, which integrates and optimizes physical settlement, immobilized microorganisms, aeration by solar energy, and artificial wetlands, was constructed in this study. A demonstration project, with a treatment capacity of 4 000 m^3/d, was constructed in the Liuxiangying Village of Jixian County, in Tianjin. The monitoring results over nearly one year show that, despite of the unstable and high concentration of pollutants at the inlet, this technology can remove 95.4% to 99.6% of TP, 84.53% to 96. 74% of COD, and 88.03% to 97.98% of TN. The water quality at the outlet reached grade IV of the surface water standards. The technology meets the requirements of simple and convenient maintenance, low investment, and low energy consumption. The operation cost was less than 0. 15 yuan per cubic meter.

关 键 词：生活污水 物理沉降 固定化微生物 人工湿地 集成技术 

分 类 号：X171.1[环境科学与工程—环境科学]