%0 Journal Article
%T Novel fluidization technical principle and application case for biotreatment of livestock wastewater<br>养殖污水生物处理的新型流态化技术原理及其应用案例
%A Wu Haizhen
%A Xia Fang
%A Wei Chaohai
%A Wu Chaofei
%A Lu Bin
%A <br>吴海珍
%A 夏芳
%A 韦朝海
%A 吴超飞
%A 卢彬
%J 环境工程学报
%D 2012
%I 
%X The livestock sewage with high concentration of COD,NH+4-N,SS and great odor was studied.According to the defects exists in general bio-reactors such as short sludge retention time(SRT),limited resistance capacity,inconsistent removal of carbon and nitrogen and high investment operating cost,the jet loop anaerobic and air-lift loop aerobic fluidized bed with the features of fortified mass-transfer and mixing were developed for the treatment of livestock wastewater.A biological combined process of A/O2 assisted by pretreatment and post treatment was constructed,which was operated at a treatment scale of 216 m3/d and the engineering effect was evaluated by 6 months continuous operation data.The results showed that under the operation load of A,O1 and O2 at 6,6 and 0.5 kg COD/(m3·d),the COD,BOD5,NH+4-N and SS reduced from 11 000~13 000 mg/L,5 500~6 500 mg/L,560~640 mg/L,7 000~9 000 mg/L to 56.8~59.2 mg/L,4.7~4.9 mg/L,8.6~9.5 mg/L,37.0~39.4 mg/L,respectively.All the effluent indexes met the first grade standards of Water Pollution Discharge Limits(DB4426-2001) in Guangdong Province(primary standard of the second period).The developed process achieves obvious engineering effectiveness and exhibits popularization and application value.
%K environmental engineering
%K livestock sewage
%K jet technology
%K fluidized bed<br>环境工程
%K 养殖污水
%K 射流技术
%K 流化床
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=B5A688D5BB06244308731D2CCD43176B&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=CA4FD0336C81A37A&sid=23CCDDCD68FFCC2F&eid=A04140E723CB732E&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=12