摘要
依据反硝化除磷(DBP)原理,采用批式试验,以城市污水为处理对象,研究了以NO2-为电子受体的反硝化除磷菌的筛选与富集,并对其反硝化除磷性能进行了考察。结果表明:NO2-对传统EBPR系统的抑制作用明显高于以NO3-为电子受体的反硝化除磷系统;对以NO3-为电子受体的反硝化除磷污泥用NO2-进行驯化,经过52个周期,缺氧吸磷量由0.3mg/L升高到9.1mg/L,短程反硝化除磷系统驯化成熟;驯化成熟的短程反硝化除磷系统仍能以氧和NO3-作为电子受体进行吸磷并维持较高的吸磷速率,以亚硝酸盐为电子受体的除磷菌占总除磷菌的58.82%,说明短程反硝化除磷菌存在于传统除磷系统中,且能够很好地利用氧和硝酸盐为电子受体进行反硝化除磷。
Based on the denitrifying phosphorus removal principle,batch experiments were used to treat municipal wastewater. The screening and enrichment of denitrifying phosphorus removing bacteria using nitrite as electron acceptor and their characteristics were studied. The results show that the nitrite is more inhibitory to the EBPR system than denitrifying phosphorus removal system using nitrate as electron acceptor. The denitrifying phosphorus removal sludge using nitrate as electron acceptor is domesticated by ...
出处
《中国给水排水》
CAS
CSCD
北大核心
2009年第23期29-33,共5页
China Water & Wastewater
基金
国家水体污染控制与治理科技重大专项(2008ZX07317-007-105)
北京市高校人才强教深化计划高层次人才资助项目(PHR20090502)
关键词
城市污水
电子受体
亚硝酸盐
反硝化除磷
municipal wastewater
electron acceptor
nitrite
denitrifying phosphorus removal
