低温低浊进水条件下壳聚糖助滤效果研究

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英文篇名：Research on the filtering-aid effect of chitosan under low temperature and low turbidity influent conditions 作者：王珊 ; 张克峰 ; 任杰 英文作者：Wang Shan;Zhang Kefeng;Ren Jie;School of Municipal and Environmental Engineering,Shandong Jianzhu University;Production Technology Management Center,Shengli Oilfield Water Supply Co.; 关键词：壳聚糖 ; 浊度 ; 颗粒物 ; 腐殖酸 ; 低温低浊水 英文关键词：chitosan;;turbidity;;granular substance;;humic acid;;low temperature and low turbidity water 中文刊名：GYSC 英文刊名：Industrial Water Treatment 机构：山东建筑大学市政与环境工程学院;胜利油田供水公司生产技术管理中心; 出版日期：2019-02-20 出版单位：工业水处理 年：2019 期：v.39;No.336 基金：高藻高有机污染水体净化处理新技术研究课题(中石化J316002) 语种：中文; 页：GYSC201902018 页数：4 CN：02 ISSN：12-1087/X 分类号：66-69

摘要

以低温低浊水为研究对象,进行壳聚糖(CTS)微絮凝强化过滤试验。结果表明,投加CTS可有效降低砂滤出水浊度、颗粒物和有机物浓度;当CTS投加量为0.7 mg/L时,砂滤出水浊度可降至0.2 NTU;进水pH较低时,CTS对腐殖酸类有机物的去除效果较好。酸性条件下,CTS强化过滤机理以电中和和吸附架桥作用为主;中性和碱性条件下,则以高分子聚合物吸附架桥作用为主。
        The micro-flocculation enhanced filtration tests on chitosan(CTS) has been implemented,using water with low temperature and low turbidity as the research object. The results show that the addition of CTS can effectively lower the turbidity of the sand-filtering effluent,and the concentration of granular substances and organic substances.When CTS dosage is 0.7 mg/L,the turbidity of sand-filtering effluent can be lowered to 0.2 NTU. When the influent pH is comparatively low,the removing effect of CTS on humic acid organic substances is good. Under acidic condition,the CTS enhanced filtration mechanisms are mainly charge neutralization and adsorption bridging action,while under neutral and alkaline conditions,it is mainly high molecular polymer adsorption bridging action.

引文

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