造纸黑液的处理研究Ⅰ──废酸中和-复合净水剂絮凝法

Treating The Black Liquor From Paper Making(Ⅰ),A Flocculation Using Waste Acid and Compound Water Purifying Agent

本项研究是利用擦洗－酸法提纯硅藻土的废酸中和造纸黑液，并使用废酸液、中土、部分尾土加工成的复合净水剂，使造纸黑液通过絮凝法达到净化的目的。该方法净化指标好，所用的复合净水剂含有多种有效成分，效果好，成本低。

The research is meaning that making using waste acid to neutralizing the black liquor, and adding the compound water purifying agent, which is made from waste acid and the medium-tailing diatomite, and then purifying the black liquor by flocculating. The waste acid is from scrub washing diatomite and purifying diatomite in acid. The targets of purifying black liquor are very well, and the agent of water purifying contains a lot of effective constituents so that the processing is of a good quality with a lower cost.