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基于自行研制的膨润土-水泥-粉煤灰(BCF)浆材和柔壁渗透仪,采用人工配制的重金属离子溶液和有机溶液,以及取自垃圾填埋场的渗沥液对不同高度浆材结石体进行了渗滤试验,试验证明:由于渗滤沉积作用和吸附滞留作用,浆材结石体对Hg、As、Pb、Cr、Cd等重金属污染物的95%,苯酚、苯胺、萘和邻苯二甲酸二丁酯等有机污染物的96%,以及NH4+-N、TN、TP、COD、BOD5等垃圾渗沥液中污染物的60%阻滞在开始渗滤的30 mm范围内,而且随着试样高度增加,对各种污染物的阻滞率基本呈现增大的趋势,并有一定的规律可循。
Based on self-developed bentonite-cement-fly ash (BCF) pulp and soft-wall permeameters, artificial solution of heavy metal ions and organic solution and leachate from landfill were used to measure the growth of pulp stones of different heights The results show that due to the infiltration sedimentation and adsorption and retention, the calcareous calculi have 95% of the heavy metal pollutants such as Hg, As, Pb, Cr and Cd, phenol, aniline, naphthalene and o- 96% of organic pollutants such as dibutyl dicarboxylate and 60% of pollutants in landfill leachate such as NH4 + -N, TN, TP, COD, BOD5 were blocked within 30 mm of initial diafiltration, The sample height increased, the various types of pollutants showed a general increase in the rate of blockage, and have a certain rule to follow.