硫酸盐型厌氧氨氧化反应启动研究

采用实验室自制的反应器,进行硫酸盐型厌氧氨氧化反应启动的研究。通过对反应后NH_4^+-N和SO_4^(2-)浓度的测定,分析NH_4^+-N和SO_4^(2-)的同步去除效果。反应历时60 d,NH_4^+-N,SO_4^(2-)投加浓度分别为120,510 mg/L,此过程维持29 d;改变NH_4^+-N,SO_4^(2-)投加浓度分别为160,848 mg/L,此过程维持31 d。NH_4^+-N最高去除率可达50%,SO_4^(2-)最高去除率可达37.8%。反应中NH_4^+-N和SO_4^(2-)发生氧化还原反应,约有6%的NH_4^+-N转化为NO_3^--N。该实验终产物为N2和单质S,达到了同步脱氮除硫效果。

Laboratory self-made reactor was use to carry out that research on the start up of the sulfate anaerobic ammonia oxidation reaction.The effect of NH4+-N and SO42-synchronous removal was analyzed by the determination of NH4+-N and SO42-concentration.The reaction lasted for 60 days.First,the concentration of NH4+-N and SO42-was 120 mg/L and 510 mg/L respectively,which lasted 29 days;and the concentration of NH4+-N and SO42-concentration was 160 mg/L and 848 mg/L respectively,this process lasts 31 days.The maximum removal rate of NH4+-N can reach 50%,SO42-the maximum removal rate can reach 37.8%.In reaction,NH4+-N and SO42-oxidation reduction reaction,about 6%of NH4+-N converted to NO3-N.The result of the experiment was N2 and single S,which achieved the effect of simultaneous denitrification and desulfurization.