中国沼气2025，Vol.43Issue(5)：30-36,7.DOI:10.20022/j.cnki.1000-1166.2025050030
果蔬垃圾厌氧酸化液为碳源的生活污水反硝化表现及微生物群落特征研究
Denitrification Performance and Microbial Community Characteristics in Domestic Sewage Treatment with Anae-robic Acidified Liquid of Fruit and Vegetable Waste as An External Carbon Source
摘要
Abstract
In order to explore the denitrification efficiency and mechanism when anaerobic acidified liquid of fruit and vege-table waste is added as an external carbon source during domestic sewage treatment,In this study,acidified liquid and compound carbon source(a mixture of acidified liquid and sodium acetate)were used as external carbon sources,and the effects of carbon source addition on the efficiency,stability and microbial community characteristics during actual domestic sewage treatment were evaluated.The results showed that the removal efficiencies of total nitrogen(TN)were 98.27％and 97.18％,and the removal efficiencies of COD were 90.62％and 83.01％,respectively.The concentrations of TN,NH4+-N and COD in the effluent all met the national first-class A standard of "Pollutant Discharge Standard for Urban Sewage Treat-ment Plants"(GB18918-2002)when the both carbon sources were added.Microbial community analysis showed that the acidified liquid and the compound carbon source enriched similar microbial community composition(Dechloromonas、Rhodobacter、unclassified_f＿Comamonadaceae etc.),but abundance of the core denitrifying microorganisms was quite dif-ferent.In summary,the anaerobic acidified liquid of fruit and vegetable waste has the potential to replace the traditional carbon source in the domestic sewage treatment process to achieve efficient denitrification.关键词
厌氧发酵/酸化液/生活污水/反硝化/碳源Key words
anaerobic fermentation/acidified liquid/domestic sewage/denitrification/carbon source分类
资源环境引用本文复制引用
黄玉莲,张文帅,戴文颖,李晓星,崔祁嘉,程珣,孙照勇,汤岳琴..果蔬垃圾厌氧酸化液为碳源的生活污水反硝化表现及微生物群落特征研究[J].中国沼气,2025,43(5):30-36,7.基金项目
四川省自然科学基金面上项目(2023NSFSC0343) （2023NSFSC0343）
成都市重点研发支撑计划(2022-YF05-01172-SN). （2022-YF05-01172-SN）
