华北地区兼性塘中试研究

Studies on A Facultative Pond in North China

研究了华北地区一个串联塘系统中的一个兼性塘。该塘系统由两个厌氧塘,一个兼性塘和一个好氧塘蛆成,处理河北省沧州市的城市污水。该污水中工业污水的比例约为70％。对运行数据的分析表明,该兼性塘在去除BOD_5方面起到了应有的作用,并且有较强的分解难降解有机物的能力,但对氨氯及SS的去除贡献甚微。示踪试验的结果表明,该兼性塘的结构设计、进水配水及出水集水装置的布量合理,可以推荐使用。在运行和研究结果基础上,本文提出了几种方法和参数,作为有关兼性塘设计使用。

A facultative pond in a serial pond system of North China is studied in this paper. The system consists of two anaerobic ponds, a facultative pond and an aerobic pond for disposal of municipal wastewater in Cangzhou, Hobei Province, of which industrial sewage ratio is about 70 percent The analysis of operating data shows that this facultative pond plays its proper role in reducing BOD2 and has good ability of decomposing organic compounds difficult to be degraded; but poor ability of decreasing NH3-N and SS. The results of tracer test indicate that the design of structure, the arrangement of inlet, outlet and the appliances of water distribution and catchment are reasonable and applicable. On the basis of operation and research results, this paper provides a few methods and parameters for reference of similar facultative pond design.