固定化混合脱色菌处理印染废水

Treating Waste Water of Textile Printing by Immobilized Mixture of Decolorizing Bacteria

研究以活性炭、纤维挂条为载体的固定脱色菌处理废水的工艺条件 .结果表明 ,两者处理效果较好 .活性炭为固定载体的适宜流量小于 6.7m L· min-1 .处理 38h后 ,只需对载体上的脱色菌采用循环新鲜营养液 ,使其繁殖再生 .又可继续处理废水约 1 0 4 h,脱色率可达 85% .此方法比无菌体等量活性炭处理废水的有效寿命长 .以纤维挂条为载体固定脱色菌 ,以相同接种量无载体的游离菌液处理废水作对比 ,经一定时间培养 ,处理相同体积废水 ,达到同样排放标准 .但该法的处理时间少于游离菌液的处理时间 ,并可反复使用 .

Waste water of textile printing is treated by decolorizing bacteria immobilized on proper carriers,among them activated carbon and fibrous hanging stripes rather than acid clay from Sichuan bring about fairly good effect and thus their technological conditions are further studied.Taking activated carbon as immobilized carrier for decolorizing bacteria,the waste water is treated in a proper flux up to 6.7mL·min -1 .After treating for 38 h.,the bacteria on carrier are capable of treating waste water for another 104 h.with a decolorizing power up to 85% if only a circulating fresh nutrient solution is offered for their reproduction.In treating waste water,the method has an effective life longer than bacteria free activated carbon in equal amount.And then,fibrous hanging stripes are taken as carrier for immobilizing bacteria;and an isolated bacteria solution without carrier in same amount of inoculation is taken as contrast.After culturing for a definite time,they are required to treat waste water in same amount and to approach same standard of drainage.The immobilzed bacteria with fibrous hanging stripes as carrier need less time to treat than the isolated bacteria solution does;and they can be used again and again.