一种脱氮复合微生物菌剂的反硝化特性  

Study on Denitrification Characteristics of a Nitrogen Removal Composite Microbial Agent

作　　者：谢嘉炜 郑展望 潘碧文 徐涛 李秀芬 XIE Jiawei;ZHENG Zhanwang;PAN Biwen;XU Tao;LI Xiufen(School of Environment and Ecology,Jiangnan University,Wuxi 214122,China;Jiangsu Key Laboratory of Anaerobic Biotechnology,Wuxi 214122,China;Jiangsu Cooperative Innovation Center of Technology and Material of Water Treatment,Suzhou 215009,China;Zhejiang Shuangliang Sunda Environment Co.,Ltd,Hangzhou 310000,China)

机构地区：[1]江南大学环境与生态学院,江苏无锡214122 [2]江苏省厌氧生物技术重点实验室,江苏无锡214122 [3]江苏省水处理技术与材料协同创新中心,江苏苏州215009 [4]浙江双良商达环保有限公司,浙江杭州310000

出　　处：《食品与生物技术学报》2024年第3期76-84,共9页Journal of Food Science and Biotechnology

基　　金：国家重点研发计划项目(2016YFC0400707);江苏省“六大人才高峰”项目(2011-JNHB-004)。

摘　　要：为了提高污水处理过程中反硝化脱氮的效果,作者利用实验室已筛选出的反硝化菌株N1、N9、N10制备复合脱氮微生物菌剂,研究了温度、碳氮比(C/N)、碳源类型对复合微生物菌剂的生长和脱氮特性的影响。结果表明,在30℃、C/N为10、碳源为可溶性淀粉的条件下,48 h后复合脱氮微生物菌剂对硝态氮、总氮和化学需氧量的去除率分别达92.61%、60.02%和58.48%。同时,在C/N比为2~10均有脱氮效果,表明该复合脱氮微生物菌剂在低C/N比废水的反硝化脱氮过程中具有一定的应用前景。In order to improve the efficiency of denitrification in wastewater treatment,the denitrifying strains N1,N9 and N10,which have been screened out in the laboratory,were prepared into a composite microbial agent.The influence of different temperatures,carbon-to-nitrogen ratios(C/N),and carbon source types on the growth and denitrification characteristics of the composite microbial agent was investigated,showing significant practical value.The results showed that 92.61%nitrate nitrogen,60.02%total nitrogen,and 58.48% chemical oxygen demand could be removed by the compound microbial agent under the conditions of 30℃,C/N ratio of 10,and soluble starch as the carbon source after 48 h.Moreover,the denitrification effect was substantial within the C/N ratio range of 2 to 10,indicating that the composite denitrification microbial agent could have application prospect in the denitrification process of low C/N ratio wastewater.

关 键 词：复合微生物菌剂 反硝化 碳氮比 

分 类 号：X172[环境科学与工程—环境科学]