电石渣浆上清液S^(2-)去除试验研究  

Experimental study on S^(2-) removal from upper clean liquid of carbide slag slurry

作　　者：易志刚[1] 付永胜[2] 

机构地区：[1]西南交通大学药学院,四川峨眉山614202 [2]西南交通大学环境科学与工程学院,成都610031

出　　处：《工业用水与废水》2008年第4期47-49,共3页Industrial Water & Wastewater

摘　　要：分析了电石渣浆废水治理方案的现状和问题,含硫废水有潜在环境风险。结合工程实际,选择空气催化氧化法对电石渣浆上清液进行S2-去除的试验研究。通过模拟试验,确定了该工艺处理该上清液的最佳工况条件:用MnSO4作催化剂,催化剂按MnSO4与S2-的质量比为1∶7的比例投加;反应温度为35～45℃;每处理1L水曝气量控制为0.6L/min;曝气时间5h。在该条件下进行反应,上清液中S2-的质量浓度在650～750mg/L时,其去除率可以达到90%以上。The current status of carbide slag slurry wastewater treatment and the existing problems were analyzed, it was indicated that, sulfur-containing wastewater might cause hidden trouble to the environment. Combined with engineering practice, air catalytic oxidation was used in the experiment to remove S^2- from upper clean liquid of carbide slag slurry. Through the simulant experiment, the optimal condition for the said process treating that kind of upper clean liquid was determined as follows： MnSO4 was used as catalyst and be added according to the MnSO4/S^2- mass ratio of 1 ： 7; the reaction temperature was 35 - 45 ℃; the aeration amount was 0.6 L/min for 1 L wastewater treatment, the aeration time was 5 h. Carrying out a reaction under the above condition, when the mass concentration of S^2- in the upper clean liquid was 650 - 750 mg/L, the remvoal rate could reach above 90%.

关 键 词：电石渣浆废水 含硫废水 催化氧化法 

分 类 号：X703.1[环境科学与工程—环境工程]