【摘要】 本论文以经过实验室处理的粉煤灰作为吸附剂,对垃圾渗滤液进行预处理,取得了较好的效果.实验结果表明,垃圾渗滤液经过粉煤灰预处理后,CODCr从12000~25000 mg/L降低到3000 mg/L左右,氨氮由400~450 mg/L降低到50~70 mg/L,重金属Cu、Cd、Zn、Pb、Cr也分别从7.0、3.5、3.5、10.0、5.5 mg/L左右降至低于国家污水综合排放标准(GB8978-1996)中的规定.更多还原

【Abstract】 The experimental study on pre-treatment of the landfill leachate with treated coal ash was put forward in this paper.The results showed that after having been treated with the coal ash the concentration of COD-(Cr) and the ammonia were greatly reduced in the landfill leachate.The COD-(Cr) with concentration range from 12000 mg/L to 25000mg/L was reduced to about 3000mg/L and the ammonia with concentration range from 400 mg/L to 450 mg/L was reduced to less 70 mg/L.The indexes of Cu,Cd,Zn,Pb and Cr of treated landfill leachate were all measure up(GB8978-1996) while their original concentrations were respectively 7.0 mg/L,3.5 mg/L,3.5 mg/L,10.0 mg/L and 5.5mg/L.更多还原