【摘要】 在生物法处理的基础上,利用高锰酸钾和次氯酸钠氧化剂深度处理垃圾渗滤液。所取渗滤液的CODCr约为600 mg/L,色度为200倍。加入25 mL/L次氯酸钠后,渗滤液的CODCr降为230mg/L,色度降为1倍。加人16 mL/L次氯酸钠,渗滤液的CODCr达到国家污水排放二级标准。高锰酸钾对有机物的去除效果相对较低,加入500 mg/L的高锰酸钾,渗滤液的CODCr降为460 mg/L,色度降为25倍。另外,高锰酸钾和次氯酸钠氧化剂深度处理低浓度难降解垃圾渗滤液产生的污泥量均很小。更多还原

【Abstract】 In this work, both potassium permanganate and sodium hypochlorite were used for the tertiary treatment of dilute leachate based on our previous research concerned treatment of refuse landfill using aged-refuse-based biofilter. CODCr and color in the leachate used were about 600 mg/L and 200 units, respectively. The corresponding values can decrease to 230 mg/L and 1 unit after adding 25 mg/L sodium hypochlorite to the dilute leachate. CODCr of the effluent can meet the national secondary emission standard when adding 16 mg/L sodium hypochlorite. Less efficiency was obtained for the uses of potassium permanganate. CODCr and color in the leachate can decrease to 460 mg/L and 25 units after adding 500 mg/L sodium hypochlorite to the dilute leachate. In addition, only a negligible sludge was observed when using both potassium permanganate and sodium hypochlorite to treat the dilute leachate.更多还原