分段进水强化城市生活污水脱氮除磷效果研究  

ENHANCING NITROGEN AND PHOSPHORUS REMOVAL EFFICIENCY OF THE MUNICIPAL WASTEWATER BY STEP-FEED

作　　者：王韬[1] 吕永涛[1] 张宽喜[1] 赵高伟[1] 王志盈[1] 程崟生 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055 [2]陕西省三原县住房和建设局,陕西三原713800

出　　处：《水处理技术》2011年第4期57-59,共3页Technology of Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07212-002);国家自然科学基金(51008243)

摘　　要：采用序批式活性污泥反应器,分别在厌氧-好氧、厌氧-缺氧-好氧运行方式下,研究了分段进水强化城市生活污水同步脱氮除磷的效果。结果表明,水总体积的30%进入厌氧段即可满足磷酸盐的去除对碳源的要求;SBR以厌氧-缺氧-好氧方式运行时,缺氧段NO3--N的质量浓度为20 mg·L-1时,可完全去除磷酸盐,并且随着二次分配的碳源增加,反硝化脱氮的效果明显提高,出水时硝酸盐氮含量大幅减少,获得了同步脱氮除磷的效果。In the reactor of SBR, the experiment of nitrogen and phosphorus removal was made by reasonable allotment of influent. Results showed that the request to the carbon source of phosphate removal could be satisfied if the influent quantity of the anaerobic segment reached 30% of the total. phosphate could be removed completely when SBR operated in aerobic/anoxic/oxic condition, 20 mg·L^-1 NO3-N being added into the reactor. In addition, with the increase of secondary allotting to carbon source, the denitrifying result improved obviously and the nitrate nitrogen concentration in effluent decreased significantly.

关 键 词：序批式活性污泥反应器 分段进水 脱氮除磷 反硝化聚磷 城市生活污水 

分 类 号：X703.1[环境科学与工程—环境工程]