汉沽生物稳定塘净化效果研究

汉沽生物稳定塘建于１９９３年．它由１０级池塘组成，ＡＴ７５ｈｍ２，用于处理城市污水（主要是化工废水）．根据２年试运行期间化学和生物学资料，分析了稳定塘的净化效果．结果表明，该稳定塘净化效能较好．主要污染物ＢＯＤ５、ＣＯＤＣｒ、ＮＨ３Ｎ和ＰＯ４Ｐ的平均去除率分别为８６．２％、７０．１％、６０．３％和６７．５％；平均年去除ＢＯＤ５４２９７．８ｔ、ＣＯＤＣｒ６１７９．８ｔ、ＮＨ３Ｎ１５４．６ｔ和ＰＯ４Ｐ８１．９ｔ．但由于有机物负荷量过高，使出水水质较差．文中提出若干改善出水水质的措施和建议

STUDY ON EFFICIENCY OF HANGU BIOLOGICAL STABILIZATION POND

Hangu biological stabilization pond was set up in 1993. It consisted of 10 cells with an A T of 75 hm 2 and was designed for treating chemical wastewater from Hangu area.The purification efficiency was discussed on the basis of the chemical and biological data from the first 2 years operation. The results indicated that the removal efficiency was good. The average removal rates of BOD 5,COD Cr ,NH 3 N and PO 4 P were 86.2%,70.1%, 60.3 % and 67.5%,respectively. 4 297.8 t a -1 of BOD 5, 6 179.8 t a -1 of COD Cr , 154.6 t a -1 of NH 3 N and 81.9 t a -1 of PO 4 P were averagely removed in a year by the stabilization pond system,but the quality of effluent was still poor due to the overloading of organic compounds. Some measures and suggestions for improving the effluent quality are proposed in this paper.