%0 Journal Article
%T Research on nitrogen removal efficiency and microbial characteristics of ZCS and MZCS process at low temperatures<br>低温下ZCS工艺和改进式ZCS工艺脱氮效率研究及微生物特性分析
%A Yang Shuang
%A Wu Zhichao
%A Zhao Hui
%A Liang Bing
%A <br>杨爽
%A 吴志超
%A 赵慧
%A 梁冰
%J 环境工程学报
%D 2007
%I 
%X Two sets of zeolite coupled contact-stabilization activated sludge process (ZCS) and modified zeolite coupled contact-stabilization activated sludge(MZCS) were tested to assess nitrogen removal efficiency in winter.The results indicated that the effluent ammonium concentration of ZCS process was 11.65 mg/L,but the total nitrogen concentration was more than 20 mg/L with HRT =3.5 h. Meanwhile,under the same condition,the ammonium concentration in effluent of MZCS process was 5.45 mg/L and removal efficiency of total nitrogen was enhanced 11% for ZCS process.The average value of TN was 16.8 mg/L.It was discovered that the two processes have both microbial characteristics of suspended activated sludge process and biofilm process by using PCR-DGGE and electron microscope scanning technology,and the microbial diversity and richness of the two processes are higher than traditional activated sludge process.
%K zeolite
%K nitrogen removal efficiency
%K PCR-DGGE<br>沸石
%K 脱氮效率
%K PCR-DGGE
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=E1DE5610D3B9733EE3CABEAB1F58D19F&yid=A732AF04DDA03BB3&vid=CA4FD0336C81A37A&iid=E158A972A605785F&sid=59906B3B2830C2C5&eid=7801E6FC5AE9020C&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=3&reference_num=10