CAJ | 학술논문

研究了电子受体和碳源对活性污泥反硝化除磷的影响。亚硝酸盐和硝酸盐都可以作为电子受体在缺氧的条件下实现对磷的吸收，但其吸磷效率比氧低。较高的亚硝酸盐浓度会严重抑制污泥的活性，当一次加入NO2-质量浓度为46 mg/L时，反硝化吸收磷不能发生；而分4次加入（每次11.5 mg/L），吸磷量可达到19.5 mg/L。电子受体浓度为0.24 mmol/L时，吸收的P和加入的N的物质的量比：NO2-为1.7，NO3-为4.7。在低的碳源浓度下，碳源可以促进反硝化磷吸收；碳源浓度过高，系统形成厌氧环境，磷反而被释放。
연구료전자수체화탄원대활성오니반초화제린적영향。아초산염화초산염도가이작위전자수체재결양적조건하실현대린적흡수，단기흡린효솔비양저。교고적아초산염농도회엄중억제오니적활성，당일차가입NO2-질량농도위46 mg/L시，반초화흡수린불능발생；이분4차가입（매차11.5 mg/L），흡린량가체도19.5 mg/L。전자수체농도위0.24 mmol/L시，흡수적P화가입적N적물질적량비：NO2-위1.7，NO3-위4.7。재저적탄원농도하，탄원가이촉진반초화린흡수；탄원농도과고，계통형성염양배경，린반이피석방。
The effects of electron acceptors and carbon sources on denitrifying phosphorus removal of oxidation ditch sludge system have been researched. Both nitrate and nitrite could be used as electron acceptors for adsorbing phosphorus under anoxic condition,but its adsorption capacity for phosphorus is lower than that for oxygen. Nitrite with higher concentration can seriously inhibit the activity of sludge. When the NO2-with mass concentration of 46 mg/L is added at one time,denitrifying phosphorus removal would not occur. But if it is added in four batches (11.5 mg/L for each time),the amount of absorbed phosphorus is 19.5 mg/L. When the electron acceptor concentration is 0.24 mmol/L,the mole ratio of absorbed phosphorus and added N are NO2-:1.7,NO3-:4.7. When the carbon source concentration is low, carbon source can promote denitrifying phosphorus removal. When the carbon source concentration is too high,forming anaerobic environment in the system,the phosphorus will be released instead.