中北大学学报（自然科学版）2016，Vol.37Issue(6)：620-624,658,6.DOI:10.3969/j.issn.1673-3193.2016.06.012
苯酚反硝化降解特征分析
Degradation Characteristics Analysis of Phenol During Denitrification
摘要
Abstract
Vaccinating mature denitrifying sludge into the anaerobic fermentation tank,it was operated continuously with phenol as carbon source and NaNO3 for denitrifying nitrogen source.The degrading dynamics characteristic of denitrification was carried out by measuring concentration changes of phenol and NO-x-N regularly.pH and ORP were monitored online in the process of reaction.Microorganism of denitrifying sludge was analyzed by PCR-DGGE.Results show that the C/N ratio was 4,the removal rate of phenol was 83.3%.The degradation rate of phenol was 6.45 mg/(g VSS·d),and the degrada-tion rate of NO-x-N was 3.85 mg/(g VSS·d).NO-2-N accumulation appeared significantly,the maxi-mum accumulation rate was 43.1%.The changes of pH and ORP could be used to reflect the denitrifica-tion process,and indicate “the most points of NO-2-N accumulation”and “the real end points of denitri-fication”well.The classes of bacteria were mainly Proteobacteria and Bacteroidetes.Altererythrobacter sp.,Bacteroides sp.,Pseudomonas baetica,Thermomonas sp.etc detected in device were valid degrad-ing bacteria for phenols and nitrates.关键词
苯酚/反硝化/亚硝酸盐积累/氧化还原电位/菌群结构Key words
phenol/denitrification/nitrite accumulation/ORP/bacterial community structure分类
资源环境引用本文复制引用
王孝维,韩钰洁,岳秀萍..苯酚反硝化降解特征分析[J].中北大学学报（自然科学版）,2016,37(6):620-624,658,6.基金项目
国家自然科学基金资助项目(51378330) （51378330）
