摘要
为了考察锯末对垃圾渗滤液中污染物质的吸附作用和吸附规律,将不同量的锯末分别加入到一定体积的垃圾渗滤液中,通过测定不同吸附时间内渗滤液中COD、NH_3-N、渗滤液体积及pH值,分析了锯末对渗滤液中COD、NH_3-N及水分的吸附状况,结果表明,锯末对渗滤液中的COD、NH_3-N具有一定的吸附作用,且锯末对渗滤液中COD的吸附符合费兰德利希吸附等温式,但对渗滤液中NH_3-N的吸附则不符合现有的吸附等温式;锯末对垃圾渗滤液中的水分有很强的吸收作用,投加锯末后渗滤液的pH值略有下降。
Various amounts of sawdust were added in a certain-volume of landfill leachate to study the absorption and their rules. Through measuring COD, NH3-N, the volume of leachate and pH at different times for the leachate, this paper analyzed the absorption effect on COD, NH3-N, and water in leachate detailedly. The results show that the sawdust have certain adsorption ability for COD, NH3-N in the leachate. The adsorption of COD is fit for Freunlich adsorption isotherm, while the adsorption of NH3-N is not conform to the existing adsorption isotherm. The sawdust has strong adsorption ability for water in leachate. The pH value of leachate fell slightly after adding sawdust.
出处
《中国资源综合利用》
2016年第1期25-28,共4页
China Resources Comprehensive Utilization
关键词
垃圾渗滤液
锯末
吸附
等温式
landfill leachate
sawdust
adsorption
isotherm
