【摘要】 研究了低溶解氧下序批式反应器(SBR)的短程硝化特征和控制条件以及碳源浓度、投加方式对同步脱氮效率的影响。试验结果表明,保持高、低溶解氧交替的环境是实现短程硝化的关键;当进水NH+4-N为300mg/L、COD为400～600mg/L时,采用半连续碳源投加方式可保证总同步脱氮效率达到80%。更多还原

【Abstract】 Study was made on the characteristics and control condition of short-cut nitrification in SBR at low DO,and the effect of carbon source concentration and dosing mode on efficiency of simultaneous denitrification.The results showed that to maintain environment in which high and low DO occur alternately is the key to achieving short-cut nitrification.When NH⁺₄-N is 300 mg/L and COD 400 ～ 600 mg/L in influent ,use of semi-continuous dosing of carbon source can guarantee simultaneous denitrification efficiency up to 80%.更多还原