作　　者： ; ; ; ; ;

机构地区： 东华大学环境科学与工程学院

出　　处： 《中国给水排水》 2008年第7期60-62,共3页

摘　　要： 采用白土-活性污泥工艺处理煤气废水，在白土投加量约为1000mg／L、活性污泥反应器的水力停留时间为24h、污泥回流比为1：1、泥龄为25d的条件下，系统对总酚和COD的去除率均在80％左右，对氨氮的去除率为20％～40％。反应器内污泥浓度为4000～5000mg／L，污泥沉降性能良好。白土的价格低廉且可回收，投加白土不会过多地增加处理成本。 Carclazyte/activated sludge process was applied for coal gasification wastewater treatment. under the conditions of carclazyte dosage of 1 000 mg,/L, HRT of activated sludge reactor of 24 h, reflux ratio of 1 ： 1 and SRT of 25 d, the removal rates of total phenols and COD are both about 80%, and the removal rate of NH3 - N is 20% to 40%. MLSS in the reactor is 4 000 to 5 000 mg/L, and the sludge has better settleability. The cost of carclazyte is cheap and it can be recovered, so adding carclazyte into the activated sludge reactor will not increase the treatment cost considerablely.

关 键 词： 白土 活性污泥工艺 煤气废水

领　　域： [环境科学与工程]