作　　者： ; ; ;

机构地区： 广东轻工职业技术学院食品与生物工程系

出　　处： 《生态环境》 2007年第2期399-401,共3页

摘　　要： 采用Fenton试剂-硫酸镁对广东某酵母厂经厌氧、好氧、缺氧处理后的酵母废水进行深度处理。实验结果表明:采用Fenton试剂,在初始pH值为9、H2O2用量为5.55g/L、Fe2+加入量为1.41g/L、反应时间为20min的条件下,废水COD去除率达90%;继续采用硫酸镁对上清液进行处理,在调节pH为11～11.5、加入硫酸镁0.25～1.0g/L时,出水COD可降至138.0mg/L,颜色清澈。出水水质可达到《污水综合排放标准》(GB8978—1996)的二级标准。 Fenton reagent/magnesium sulfate was used to treat yeast production wastewater after anaerobic, aerobic and anoxic treatment in a yeast plant in Guangdong province. The result shows that the COD removal rate of the wastewater is 90% when Fenton reagent is used with an initial pH of 9, a H2O2 mass concentration of 5.5 g/L, a Fe^2＋ mass concentration of 1.41 g/L and a reaction time of 20 min, then using magnesium sulfate to treat the supematant, the effluent COD can be decreased to 138.0 mg/L, and the water colour being clear when the supernatant pH is controlled in the range of 11 to 11.5 with a magnesium sulfate mass concentration of 0.25 - 1.0 g/L. The effluent quality can meet the second class criteria of Integrated Wastewater Discharge Standard （GB 8978- 1996）.

关 键 词： 试剂 硫酸镁 酵母废水 深度处理

领　　域： [环境科学与工程]