生物絮凝剂F-12处理染料废水的研究

从活性污泥中筛选得到一株生物絮凝剂产生菌,该菌能够利用玉米淀粉废水作为培养基生产生物絮凝剂,所产絮凝剂命名为F-12。将F-12用于染料废水脱色,研究了F-12加入量、助凝剂、pH、搅拌时间及静置时间等条件对脱色效果的影响。试验结果表明,F-12对染料废水有良好的处理效果,最优脱色条件为：1 L废水中加入0.2 mL F-12和0.2 g CaCl2、体系pH 6.0,200 r/min搅拌1 min,60 r/min搅拌3 min,静置10 min。在此条件下,F-12对氧化铁红废水的脱色率达到95.02%。

Study on the Microbial Flocculant F-12 for Treating the Dyeing Wastewater

A new type of flocculant-producing bacteria was isolated from activated sludge could grow in cornstarch wastewater and produce microbial flocculant,the product was named F-12.The decolorizing conditions such as F-12 dosage,coagulant aid,pH value,stirring time and standing time were discussed.The results shown that F-12 had high efficiency in treating dyeing wastewater,and the optimum conditions were: 0.2 mL F-12 and 0.2 g/L CaCl2 in 1 L dyeing wastewater,pH value 6.0,stirring at 200 r/min for 1 min and 60 r...