文档介绍：包埋固定化菌去除絮凝余水中氨氮的研究
吕志刚* 作者简介:吕志刚(1965~),男,硕士研究生。研究方向:水污染控制工程应用。
李飏王长城
(无锡市河海、湖泊生态修复与资源化工程技术研究中心江苏无锡 214061;
江苏江达生态科技有限公司江苏无锡 214061)
摘要:本研究采用聚乙烯醇(PVA)为载体的包埋固定化微生物处理低浓度氨氮絮凝余水,较短的水力停留时间(HRT)成功实现了氨氮的去除,HRT 3小时之内从地表水环境质量Ⅴ类水标准以外达到了Ⅰ类水标准,同时该菌对CODcr也有一定的去除率,并系统的研究了HRT、颗粒填充率对絮凝余水处理效果的影响。
关键词:包埋固定化微生物低浓度氨氮絮凝余水水力停留时间颗粒填充率
Study on the treatment of ammonia nitrogen of ulation excess water by immobilized nitrobacteria pellets
Lv Zhigang Li Yang Wang Changcheng
(River, Lake and Sea Ecological Restoration and Resources Engineering and Technology Research Institution Jiangsu Wuxi 214061;
Jiangsu Jiangda Ecological Science and Technology Co.,Ltd. Jiangsu Wuxi 214061)
Abstract: A study on the treatment of low strength ammonia nitrogen of ulation excess water by immobilized nitrobacteria pellets using PVA as carrier. The results showed that immobilized nitrobacteria pellets can remove the low concentration ammonia nitrogen effectively and rapidly, which can improve the environmental quality standards for surface water from surpassing class Ⅴ to class Ⅰ. Also, this pellets can reduce the CODcr. The HRT has a great influence on the removal rate of ammonia nitrogen; increasing the filling rate of the immobilized nirobacteria pellets can improve the efficiency of the treatment of the ulation excess water.
Key Words: immobilized nitrobacteria pellets, low concentration ammonia nitrogen