造纸黑液循环利用的研究-陕西师范大学学报期刊社网站

陕西师范大学学报（自然科学版）

专题研究

造纸黑液循环利用的研究

刘存海，王廷平，杜经武

(陕西科技大学化学与化工学院，陕西西安，710021)

刘存海，男，副教授，主要从事造纸废水处理方面的研究.

摘要:

应用化学絮凝法和氧化法相结合的方法对造纸黑液进行了研究．采用不同的絮凝剂分别对造纸黑液进行处理，筛选出了絮凝剂的种类并确定了最佳用量．然后将其配制为复合絮凝剂，对造纸黑液进行处理，使COD指标由原来的11 000 mg/L降至1 750 mg／L；再经选用的氧化剂进行氧化处理，可使COD值降至166 mg／L．经过处理的废水，可作为造纸制浆的二次用水，使造纸废水达到循环利用，实现零排放．

关键词：

絮凝剂；造纸黑液；循环利用

收稿日期：

2007-01-22

中图分类号：

X793

文献标识码：

文章编号：

1672-4291(2007)02-0064-03

基金项目：

Doi:

Black liquor of papermaking of circular utilization

LIU Cun-hai, WANG Ting-ping, DU Jing-wu

(Institute of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi′an 710021, Shaanxi, China)

Abstract:

The wastewater of papermaking was regarded as researching object. The wastewater was disposed by several flocculants, and COD value was lowered from 11 000 mg/L to 1750 mg/L. Then method of oxidization was used, COD value was lowered 166 mg／L. The wastewater was disposed and used as water of paper pulp. Wastewater of papermaking was used circularly and was not exhausted.

KeyWords:

water disposal agent; black liquor; circular utilization