回用蒸煮黑液、实现达标排放  

Reuse Cooking Black Liquor to Meet Discharge Standard

作　　者：吉志杰 易卫东 

机构地区：[1]南通市通州区环境保护局,江苏南通226300

出　　处：《环境科技》2009年第5期44-46,共3页Environmental Science and Technology

摘　　要：精制棉生产时产生的蒸煮黑液中含有大量的棉超短绒、果胶、油脂、棉蜡、木糖等,色度大于2000倍,CODCr质量浓度高达6000mg/L以上,生化性差,难处理。若将蒸煮黑液预处理,高浓度回收利用,低浓度与洗涤废水混合经厌氧、好氧、混凝处理后,不但出水水质达到GB8978-1996《污水综合排放标准》一级标准,而且大大降低了投资和运行费用。The cooking black liquor from refined cotton production contains a lot of cotton linter, pectin, oil, cotton wax, xylose etc, which is difficult to treat because of the chroma over 2 000 times, CODCr over 6 000 mg/L and poor biodegradability. After pre-treatment, the high concentration black was recycled. And the low concentration black liquor mixing with washing wastewater was treated by the anaerobic-aerobic-coagulation process. The effluent can meet the first class Integrated Wastewater Discharge Standard （GB 8978--1996）, which greatly reduces the investment and operation cost.

关 键 词：精制棉 蒸煮黑液 厌氧 好氧 

分 类 号：X7[环境科学与工程—环境工程]