【摘要】 在羊毛纤维进行纺纱、织造、染色之前,必须将各种杂质去掉,使其成为纯净的纤维,这一过程称为洗毛,洗毛废水的水质,随所用羊毛种类的洗毛工艺、用水量不同而有差异。但都含有泥沙、羊汗、羊毛脂、洗涤剂等杂质,每升废水含COD、BOD达上万mg/L。该工程工艺设计当时按COD≤11 000 mg/L,并且有大量的生活污水来混合,生活污水中含有大量的菌群,通过混合后可较好的适应微生物的生长繁殖。但实际情况是只有洗毛废水没有生活污水且进水COD远高于11 000 mg/L,同时现在含沙量极高,致使后续的生物处理困难。更多还原

【Abstract】 The impurities must be removed in order to obtain pure wool fiber before spinning,weaving and dyeing.This process is called degreasing.The quality of degreasing wastewater varies from degreasing process adopted and water consumption.All the degreasing water contains sediment,sheep sweat,lanolin,detergent and other impurities with BOD and COD exceeding tens of thousands per liter.This study is designed as degreasing water COD of less than 11 000 mg/L and the wastewater was mixed with large amount of sanitary sewage(with many bacteria),to adapt to the growth of microorganisms breeding.However,the fact is that the wastewater has a higher COD than 11 000 mg/L and much sediment instead of sanitary sewage,which makes the following biological treatment more difficult.更多还原