摘要
研究了硫酸盐型厌氧氨氧化反应器的启动特征及氧化还原电位对SO24-去除性能的影响。首先启动厌氧氨氧化并逐渐提高容积负荷至0.625kg/(m3.d),然后以(NH4)2SO4为唯一基质,启动硫酸盐型厌氧氨氧化。结果表明,历时212d后成功启动了硫酸盐型厌氧氨氧化反应器,对NH4+-N和SO42-的去除量分别为76.2、68mg/L。反应器出水的pH值低于进水的。当将氧化还原电位提高到(-43±10)mV时,硫酸盐型厌氧氨氧化受到抑制。较高的(NH4)2SO4浓度和低氧化还原电位有利于硫酸盐型厌氧氨氧化反应的发生。此外,该反应器还同时存在自养反硝化作用。
The start-up characteristics of sulfate-dependent anaerobic ammonium oxidation （ ANA- MMOX） reactor as well as the influence of oxidation-reduction potential （ORP） on the removal of SO4^2- were investigated. The ANAMMOX process was started up first, and its volumetric load rate was raised to 0.625 kg/（ m^3 · d）. After that, （NH4 ）2SO4 was used as the sole substrate to start up the sulfate-dependent ANAMMOX process. The sulfate-dependent ANAMMOX process is successfully started up after 212 d operation. The removal amounts of NH4^＋ - N and SO4^2- are 76.2 mg/L and 68 mg/L respectively. The pH value of the effluent is lower than that of the influent. The sulfate-dependent ANAMMOX process is inhibited when ORP is increased to （ -43 ± 10） mV. It is helpful to promote sulfate-dependent ANAMMOX by raising （NH4 ）2SO4 concentration and by reducing ORP. Autotrophic denitrification may exist in the reactor simultaneously.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第15期41-44,共4页
China Water & Wastewater
基金
广东省科技攻关项目(2006B36703002)
关键词
硫酸盐型厌氧氨氧化
自养反硝化
氧化还原电位
sulfate-dependent ANAMMOX
autotrophie denitrification
oxidation-reduction potential
