摘要
以脱乙酰度为70%的壳聚糖(CTS)、硫酸铝和聚铝(PAC)作为絮凝剂对含Cr3+和中性染料的印染废水絮凝脱色进行了处理条件的优化,对试验结果作了对比分析。结果表明壳聚糖与硫酸铝、聚铝的絮凝效果近似,但用量要少得多,而且壳聚糖为天然高分子絮凝剂,无毒、易降解、对环境无污染。
The experimental conditions of decoloration disposal for printing and dyeing waste water with Cr^(3+) and litmusless dyes are optimized utilizing chitosan (CTS) with 70% acetyl removed, aluminum sulphate or polyaluminum chloride for flocculation. The experience using CTS in printing and dyeing wastewater-processing project was obtained. The results show that CTS has an analogical flocculation efficiency with aluminum sulphate and polyaluminum chloride (PAC). In our experience, the same efficiency is obtained with less CTS, the dosage of CTS is 10 mg/L.Furhermore, CTS is an innocuous, decomposable and nonpolluting natural macromolecule.
出处
《青岛大学学报（工程技术版）》
CAS
2004年第3期65-68,共4页
Journal of Qingdao University(Engineering & Technology Edition)
关键词
壳聚糖
中性染料
絮凝
脱色
chitosan
litmusless dyes
flocculation
decoloration
