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.
出处
《水处理技术》
CAS
CSCD
北大核心
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)
关键词
渗滤液
老港填埋场
膜分离
胶体
季节
leachate
Laogang Landfill
membrane separation
colloid
