多户化粪池联用的生活污水处理净化槽的研究

在单独净化槽的基础上针对农村现有的自来水化工程相配的化粪池,研发多户联用的多功能高效新型净化槽,调查了生物滤床对污水净化作用,测定了各区BOD5、氨氮和浊度的变化情况,讨论了各区生物滤床对出水水质的影响。结果表明:当处理能力为单独净化槽4倍情况下,各区加入滤床后出水的BOD5、氨氮和浊度分别为3 mg/L、10.5 mg/L和5NTU,水质指标均可达到国家一级排放标准,大大减少了净化槽的投资费用。

STUDY ON TREATMENT OF HOUSEHOLD SEWAGE IN PURIFYING TANK CONNECTING MULTIPLE SEPTIC TANKS

To point against the septic tank that is matched rural water supply engineering,a new integrated and highly effective purifying-tank was developed on the basis of individual one.The purification of bio-filter bed was investigated and its influence on effluent quality was discussed by determining the changes of BOD5,NH3-N and turbidity in all zones.The processing capacity of new integrated purifying-tank was 4 times as that of the individual one,and the experimental results showed that the average effluent value of BOD5,NH3-N and turbidity was 3 mg/L,10.5 mg/L and 5NTU,respectively,as the bio-filter beds are added in the anaerobic zone and two aerobic zones successively,which is better than the national primary standard and reduced the costs greatly.