Pilot Study of Biological - Ecological Filter (BEF) for Municipal Wastewater Treatment
Pilot-scale anaerobic hydrolysis - high load biological filter - earthworm filter combined process was set-up for the treatment of domestic wastewater. Results showed that CODcr and ammonia nitrogen of the effluent water after treated were 15-50 mg/L, and 1～ 3mg/L respectively, in the operating condition of residence time of pool acid hydrolysis (5h) and hydraulic loading of high-capacity biological filter (15m3/m2·d), and hydraulic loading of Microbe Earthworm Eco-Filter (7.0m3/m2·d), when the CODcr and ammonia nitrogen of the influent water were 280～450 mg/L and 2535 mg/L, respectively. Water quality of the effluent water could meet the first requirement of Chinese Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). A large number of protozoa and metazoan were found in the microscopic examination of biofilm, implying operational stabilization of biofilter and large degradation of organic matter.
Biological Ecological Filter-Microbe Earthworm Eco-Filter
Zhidong Huang Jie Zhang Hao Wang Jian Yang Meiyan Xing
State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and Engineering, Tongji University Shanghai 200092, China
国际会议
昆明
英文
367-370
2010-10-17（万方平台首次上网日期，不代表论文的发表时间）