%0 Journal Article
%T Parameter optimization and technology comparison for landfill leachate treatment<br>垃圾渗滤液处理工艺运行参数优化与技术比较
%A Ren Zhihui
%A Li Yanming
%A Li Huafen
%A Yang Fenhe
%A <br>任智慧
%A 李彦明
%A 李花粉
%A 杨奋翮
%J 环境工程学报
%D 2012
%I 
%X Landfill leachate is a high-strength wastewater that may contain high concentrations of organic and inorganic matter.In this study,the operating parameters and removal efficiency for COD and ammonia nitrogen (NH4+-N) were compared for two different treatment chains and operating parameters at the Liulitun landfill leachate system during 2007 and 2010.In 2007,before improvement,the removal of COD and NH4+-N in the treatment chain of a mesophilic UASB+A/O+flocculation were 62%~97% and 18%~74%,respectively.The process was changed by reducing the hydraulic retention time by 1/3,adjustment of A/O aeration method,optimization of operating parameters such as pH and DO,and by replacing the flocculant used by MBR.Over a period of 1 year,these changes resulted in a COD removal of 81%~99%,and NH4+-N removal of 99.5%.The effluent content of NH4+-N was less than 10 mg/L.These results indicate that optimization of UASB+A/O+MBR processes can have a profound effect on system performance allowing shorter treatment periods and easy management while substantially reducing COD and NH4+-N.
%K leachate
%K COD
%K ammonia nitrogen
%K removal rate<br>渗滤液
%K COD
%K 氨氮
%K 去除率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=9A13AEDC57801D68BCD854607AD67179&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=F3090AE9B60B7ED1&sid=F0BDA68D1A3A8A7D&eid=5A66924DD41A41F7&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=20