天然锰矿物催化氧化法处理含硫废水研究

利用廉价天然锰矿物作催化剂,在常温常压下进行催化氧化法去除硫化物的实验研究。在所研究的浓度100—400mg/L范围内,使用的反应器为10L.控制气量0.1m~3/h,曝气时间4h,催化剂加量100—150mg/L,pH值9—10时,硫化物去除率达94％—98％。和未加催化剂相比减少了曝气量和曝气时间,可以使能耗降低30％,处理成本降低20％。

A Study on the Natural Mineral Manganese Catalytic Oxidation Process for the Treatment of Sulfur-bearing Wastewater

A cheep natural mineral manganese was used as a catalyst to catalytically oxidate sulfur-bearing wastewater at the ambient temperature and pressure. When the wastewater has a sulfur concetra-tion of 100-400mg/L,and is treated in a 101. reactor at pH 9 10, with an air flow of 0. 1m3/h and a catalyst dose of 100 -150mg/L for 4 hours, the removal of sulfur from wastewaster reaches 94 % - 98 %. As compared with the similar process without catalyst,the present process has a reduced air volume and time for aeration, about 30% reduction in energy consumption, and about 20 % reduction in treatment cost. The results show that Using this King of cheep natural mineral manganese as a catalyst to catalytically oxidate sulfur-bearing wastewater is an effective method.