Study on Directions of External Carbon Source for Biological Denitrification in Domestic Sewage Plant
At present,the C/N ratio of most domestic sewage plants is too small,insufficient carbon source,the total nitrogen content in effluent is too high,and poor denitrification effect.According to the latest research results on supplementary carbon sources at home and abroad,briefly analyzed the advantages and disadvantages of traditional carbon sources and new carbon sources,and took the domestic sewage treatment plant as the research object,studied on impact of adding carbon sources for the denitrification efficiency of biological denitrification.The results show that the Ammonia nitrogen and total nitrogen decreased significantly,after adding sodium acetate as a supplementary carbon source to the domestic sewage plant for 7 days,the average ammonia nitrogen concentration is around 1.5 mg·L-1,and total nitrogen is around 10 mg·L-1,the denitrification effect is remarkable.
supplementary carbon sourcedomestic sewage plantdenitrification and denitrification
万方数据
维普
