矿化垃圾处理后渗滤液中有机物的相对分子量分布  

Molecular Weight Distribution of Organics in Leachate Effluents from the Aged-Refuse-Based Bioreactor

作　　者：刘静 王劭然[2] 闫鹏飞[2] 

机构地区：[1]青岛市环境监测中心站,青岛266003 [2]青岛理工大学环境与市政工程学院,青岛266033

出　　处：《青岛理工大学学报》2009年第6期79-82,共4页Journal of Qingdao University of Technology

摘　　要：采用孔径分别为1.2、0.45μm与1000 Da的微滤膜、超滤膜和纳滤膜,以CODCr、TOC与UV254为指标,选择上海老港生活垃圾填埋场调节池与填埋龄6年填埋单元的渗滤液,对两类渗滤液经矿化垃圾生物床处理后出水中有机物进行了相对分子量测定.研究结果表明,无论调节池渗滤液还是6年渗滤液,经矿化垃圾生物床处理后,出水中有机物以分子量小于1000 Da的溶解性有机物为主,大于90%.要达到CODCr≤100mg/L,后续深度处理采用混凝沉淀与纳滤技术不具有技术可行性.Using microfiltration membrane （1.2 μm）, hyperfiltration membrane （0. 45 μm） and nanofiltration membrane （1000 Da）, the molecular weight distributions of organic matters in leachate effluents from the aged-refuse-based bioreactor developed previously was tested. The leachate treated was taken from the holding tanks or collection wells of 6-yearold landfill cells respectively at Laogang Refuse Landfill, Shanghai. The results show that the molecular weight of the effluents of both fresh leachates from the holding tanks or 6- year-old landfill cells after treatment was 〈1000 Da with about 90%. It is proposed that coagulation and nanofiltrtion technology may not be applicable to reach the limit value of CODcr, which is below 100 mg/L.

关 键 词：渗滤液 相对分子量 纳滤 矿化垃圾 

分 类 号：X131.2[环境科学与工程—环境科学]