后置反硝化-MBR工艺强化污水脱氮研究

摘要

The new technology of post denitrification MBR combines post denitrification with MBR for domestic sewage treatment, nitrogen removal can up to 85%, effluent can meet the discharge standard of pollutants for municipal wastewater treatment plant of a class A. Studies have confirmed the existence of two major denitrification forms on new technology, contribution of simultaneous nitrification and denitrification rates is about 70% and contribution of endogenous denitrification rate is about 30%.The new technology has full promoted simultaneous nitrification and denitrification, at the same time has effectively strengthen the endogenous denitrification. In terms of depth denitrification for polluted water, the new technology has a good prospect.%后置反硝化MBR新工艺结合后置反硝化技术与MBR技术处理污水，强化脱氮效果可达85%以上，出水满足《城镇污水处理厂污染物排放标准》一级A标准。研究证实新工艺脱氮主要存在两种反硝化形式，其中同步硝化反硝化脱氮贡献率在70%左右，内源反硝化脱氮贡献率在30%左右。新工艺让同步硝化反硝化得到充分的发挥，同时有效的加强了内源反硝化。在污水深度脱氮方面，具有很好的前景。