采用固定化光合细菌应用SBR法处理生活污水的试验研究

Experimental Study on Domestic Wastewater Treatment by Immobilized Photosynthetic Bacteria in a Sequencing Batch Reactor(SBR)System

本文以序批式活性污泥法（ＳＢＲ）为主要工艺，以住宅区生活污水为基质，研究了以纤维球为载体固定化光合细菌的ＳＢＲ法在污水回用方面的应用。试验结果表明：在微好氧条件下（０２～１０ｍｇ／ｌ），在混合液水温为２５～３０℃及１２～１５℃范围内，经８～１０ｈ的好氧反应，可稳定去除原水中的ＣＯＤｃｒ。当进水ＣＯＤｃｒ为４４０～６９５ｍｇ／ｌ，出水ＣＯＤｃｒ小于５０ｍｇ／ｌ，去除率可稳达９０％以上，且可提高ＮＨ３－Ｎ硝化效果，并有效地除去污水中的ＴＰ，此外，由于光合细菌的作用。

This paper describes a batch scale experimentation carried out to study the application of sequencing batch activated sludge system filled with immobilized photosynthetic bacteria on the fiber balls in the field of waste water reclamation The substrate is domestic wastewater from apartment houses The results show that under the condition of microaerophilic(0 2～1 0mg/l),when the mixed liquid temperatures are 25～30℃ and 12～15℃,the COD cr in raw wastewater can be removed steadily with 8～10h aeration When the influent COD cr is 440～695mg/l,the effluent COD cr can be removed below 50 mg/l,the removal rate is above 90% NH 3-N and TP can also be nitrified or removed efficiently Additionally,the results of decoloration of the SBR system by the effect of photosynthetic bacteria are well too