Process for Wastewater Treatment of Anion Ezchange Fiber Preparation by Cleaning Production

摘要：

The research in this paper is carried out to deal with the major pollutants in the preparation of anion exchange fiber, particularly the chloromethylation reaction waste liquid, the amination reaction waste liquid and the detergent fiber waste liquid. In the experiment, both the demixion method and the methyl alcohol cleaning method are proved to be efficient in the wastewater treatment. The former method is employed to treat the chloromethylation reaction waste liquid by demixion. In the upper layer solution, CME (Chloromethyl Methyl Ether) and methylal (dimethoxymethane) are formed while in the lower layer solution, Zinc chloride is recycled, which provides a solution to the pollution problem and reduces the cost of CME. The latter method, with trimethylammonium chloride as the agent, is efficient in cleaning the remains of reaction waste liquid, thus ensuring the fiber strength. Furthermore, combined with the amination reaction, methyl alcohol cleaning method contributes a lot to a consistent, recyclable and low-cost preparation. The research indicates that the pH value of the wastewater is 7, which meets the state discharge standard.

关键词： anion Ezchange Fiber chloromethylation reaction waste liquid wastewater Treatment

作者: DENG Qiong ZENG Qingxuan FENG Changgen

作者单位: School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,Shaanxi,China Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 1370-1374

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）