Effect of different C/N on efficient denitrification treatment of high nitrogen wastewater
This paper investigated the effect of low C/N(mass ratio,0.03,0.17,0.27,0.33)on the denitrification process and pollutant degradation of high nitrogen wastewater,and explored the evolution patterns of microbial diversity and microbial community structure in the system through high-throughput sequencing.The results showed that high nitrogen wastewater could still achieve denitrification under low C/N condition.When C/N was 0.33,the total nitrogen removal rate reached 83.01％.Under this condition,there was a high accumulation of nitrite nitrogen,reaching a maximum of 316.09 mg/L.The high-throughput sequencing results indicated that Truepera(relative abundance was 31.33％)and Aquamicrobium(relative abundance was 6.42％)were the reasons the system could maintain high denitrification efficiency when C/N was 0.33.Efficient denitrification treatment of high nitrogen wastewater at low C/N was feasible.
typical high nitrogen wastewaterhigh-throughput sequencingC/Ndenitrificationfeasibility
万方数据
维普
