工业水处理 ›› 2008, Vol. 28 ›› Issue (9): 25-27. doi: 10.11894/1005-829x.2008.28(9).25

• 试验研究 • 上一篇    下一篇

二次冷轧废乳化液处理方法的研究

林永增1,2, 王国栋1, 刘相华1   

  1. 1. 东北大学轧制技术及连轧自动化国家重点实验室, 辽宁沈阳 110004;
    2. 上海宝钢股份有限公司, 上海 200431
  • 收稿日期:2008-05-08 修回日期:2008-05-08 出版日期:2008-09-20 发布日期:2010-10-01
  • 作者简介:林永增(1972- ),东北大学博士研究生,工程师。Email:linyz@baosteel.com,电话:021-56996080。
  • 基金资助:

    国家973计划项目(204CB619108)

Study on the treatment of was te emulsion from double cold rolling

Lin Yongzeng1,2, Wang Guodong1, Liu Xianghua1   

  1. 1. State Key Lab of Rolling and Automation, Northeastern University, Shenyang 110004, China;
    2. Shanghai Baoshan Iron & Steel Co., Ltd., Shanghai 200431, China
  • Received:2008-05-08 Revised:2008-05-08 Online:2008-09-20 Published:2010-10-01

摘要:

二次冷轧过程产生的DCR废乳化液COD高达20000mg/L以上,选择以酸洗废液为原料采用常温氧化法制备的聚合氯化铁,应用于DCR乳化废液的处理。试验结果表明,使用酸洗废液制备的聚合氯化铁对DCR乳化废液具有良好的破乳作用。用聚合氯化铁处理200mLDCR废乳化液的最佳条件为:10%聚合氯化铁的用量为2mL,助凝剂0.1%的PAM的用量为0.15mL,pH为8左右,沉降时间20min,COD去除率可以达到95%以上,为后续处理创造了便利条件。

关键词: 二次冷轧, 废乳化液, 聚合氯化铁, 破乳

Abstract:

The chemical oxygen demand (COD) of waste emulsion from double cold rolling (DCR) is as high as 20000mg/L above. Polyferric chloride has been prepared by oxidation from old rolled steel acid waste at normal temperature and applied to the treatment of waste emulsion from DCR. The results show that the deemulsification effect is good. To treat 200mL waste emulsion from DCR, the optimum conditions are 2.0mL 10% polyferric chloride, 0.15 mL 0.1% PAM, pH about 8.0 and 20 min precipitation time. The removal rate of COD can reach 95%. It provides convenient conditions for the succeeding treatment.

Key words: double cold rolling, waste emulison, poly ferric chloride, de-emulsification

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