不同季度渗滤液性质研究  

CHARACTERIZATION OF LEACHATE GENERATED IN DIFFERENT SEASONS

作　　者：楼紫阳[1] 赵由才[1] 

机构地区：[1]同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室,上海200092

出　　处：《水处理技术》2006年第2期38-40,共3页Technology of Water Treatment

基　　金：国家自然科学基金项目(20177014);教育部博士点基金(20020247020)

摘　　要：用不同孔径的系列膜对不同季度渗滤液进行梯度分离。对分离前后渗滤液的COD、TOC、pH、TP、氨氮、正磷酸盐、色度、浊度和电导率等参数进行了测定,并建立了各参数与不同孔径膜的关系。结果表明:老港填埋场3月份渗滤液比6月份渗滤液污染性强,渗滤液的C:N:P的比分别为1168:232:1和1003:377:1,对于生物处理工艺来说,其C:N:P比例明显失调。同时发现:渗滤液的绝大部分污染物质集中于可溶性部分,而渗滤液中的P主要与大分子的悬浮物和粗胶体结合。在浊度与色度这两指标中,悬浮物和粗胶粒大约贡献一半左右。Leachate samples collected from holding tank used at Laogang landfill in March and June 2003 were gradiently separated by a series of membranes with various pore size. The parameters, such as COD, TOC, pH, TP, TN, NH3-N ,orthophosphate, color, turbidity and conductivity, in the filtrates resulted from gradient filtration ofleaehate were determined, and the relationships between these parameters ofleaehate and the membrane pore sizes were quantitatively co-related. It is found that the pollutant in leachate generated in March was stronger than that in June at Laogang landfill. The ratios of C： N： P in leachate in March and June were 1168：232：1 and 1003：377： I respectively, which seems to be unfavorable to the biological treatment process, as the total amount of N is usually beyond the appropriate ratio seriously. The dissolved fraction predominated in leaehate. The P in leachate was combined with the suspended particle and the coarse colloids, which contributed about half of the colority and turbidity in leachate.

关 键 词：渗滤液 老港填埋场 膜分离 胶体 季节 

分 类 号：X703.1[环境科学与工程—环境工程]