改性稻壳为碳源和生物膜载体的反硝化脱氮研究  

Research on Denitrification with Modified Rice Husk as Carbon Source and Biofilm Carrier

作　　者：杨平 刘青松[1] 石广辉 李华[1,3] 许晓东 张家松[1,3] YANG Ping;LIU Qingsong;SHI Guanghui;LI Hua;XU Xiaodong;ZHANG Jiasong(South China Sea Fishery Research Institute.Chinese Academy of Fishery Science,Key Lab of South China Sea Fishery Resources Exploitation&Utilization,Ministry of Agriculture and Rural Affairs,Guangdong Provincial Key Lab.of Fishery Ecology Environment,Guangzhou 510300,China;College of Fishery and Life Science.Shanghai Ocean University,Shanghai 201306,China;Shenzhen Base of South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shenzhen 518121,China;Zhu Hai De Yang Aquaculture Co.,LTD.Zhuhai 519090,China)

机构地区：[1]中国水产科学研究院南海水产研究所,农业农村部南海渔业资源开发利用重点实验室,广东省渔业生态环境重点实验室,广东广州510300 [2]上海海洋大学水产与生命学院,上海201306 [3]中国水产科学研究院南海水产研究所深圳基地,广东深圳518121 [4]珠海德洋水产养殖有限公司,广东珠海519090

出　　处：《水处理技术》2020年第2期52-56,61,共6页Technology of Water Treatment

基　　金：中国-东盟海上合作基金项目(中国-东盟现代海洋渔业技术合作及产业化开发示范);中国水产科学研究院南海水产研究所中央级公益性科研院所基本科研业务费专项资金项目(2017YB15);深圳市战略性新兴产业和未来产业发展专项资金(201605051733565380);广东省自然科学基金项目(2017A030313147,2015A030310393);农业部南海渔业资源开发利用重点实验室开放基金(FREU2017-01);中国水产科学研究院基本科研业务费和农业部海洋渔业可持续发展重点实验室开放课题(2017HY-XKQ01)。

摘　　要：为探索稻壳作为载体和碳源的脱氮性能以及对水处理工艺的适应性,以质量分数6%的NaOH处理的改性稻壳为反硝化碳源和生物膜载体,对模拟养殖排放水进行了脱氮处理研究。结果表明,改性稻壳的性能优于蔗糖及淀粉,可实现NO3--N和高含量NO2--N的有效去除。其作为缺氧反应器载体时,挂膜容易、有机碳释放稳定,反应器启动后可高效去除NO3--N。在硝化-反硝化系统中,对NH4+-N去除率达90%以上,且无NO2--N、NO3--N和有机物残留,说明此改性稻壳具备较好的供碳能力和微生物吸附能力,适于作为反硝化碳源及载体。In order to explore the denitrification performance and adaptation for water treatment when the modified rice husk as carrier and carbon source,the denitrification treatment of simulated aquaculture effluent was studied and the Na OH(mass fraction of 6%) treated modified rice husk as denitrifying carbon source and biofilm carrier.The results showed that the performance of modified rice husk was better than sucrose and starch,and it could effectively remove NO3--N and high content NO2--N.When the modified rice husk as the carrier of anoxic reactor,it was easy to form microorganism membrane and could release carbon source stable,and NO3--N could be effectively removed when the anaerobic reactor was started.In a nitrification and denitrification system,NH4+-N removal rate reached more than 90%,and no NO2--N,NO3--N and organic matter was residual.In brief,the modified rice husk has a good capacity of carbon supply and microbial adsorption,it is suitable for being a carbon source and carrier of denitrification.

关 键 词：改性稻壳 碳源 反硝化性能 脱氮 

分 类 号：X703.1[环境科学与工程—环境工程]