膜科学与技术

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Nanofiltration membrane fouling cleaning in alkali recovery of viscose fiber industry

Authors： Yao Meng, Fang Yongzhen, Zhu Lixiang

Units： Suntar Membrane Technology (Xia Men) CO.,LTD, Xiamen 361022, China

KeyWords： Nanofiltration membrane Alkali recovery Membrane fouling membrane cleaning

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2016,36(3):115-117

Abstract：

Concentrated alkali was generated during viscose fiber industry. Nanofiltration membrane was used to separate NaOH and semi cellulose. Suntar-357 nanofiltration membrane was applied in this project. The normal membrane flux was 23 LMH. After a long-term operation, the flux declined >60 %. The fouling substances were tested as colloidal substances by alkali dissolution experiment and of Dindar experiment. LC-01, LC-90 and LC-42 were used as the cleaning agent. The LC-42 agent was the best. The water flux recovery was 52.2 %, 60.9 %, 73 %, 90.4 %, respectively. The water flux recovery was 90.4%.

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AuthorIntro：

作者简介：姚萌（1982～），女，河北人，博士，工程师，三达膜科技（厦门）有限公司，主要研究方向为膜技术应用，E-mail：yaom@suntar.com

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