膜蒸馏技术处理电镀废水反渗透浓水的研究

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• 英文论文题名：Treatment of reverse osmosis brine generated in electroplating wastewater by membrane distillation
• 论文作者：朱海霖 ; 李成才 ; 郭玉海 ; 金王勇 ; 吴益尔
• 英文论文作者：ZHU Hailin ; LI ChengCai ; GUO Yuhai ; JIN Wangyong ; WU Yier ; Key Laboratory of Fiber Materials and Processing Technology ; Zhejiang Sci-Tech University ; Zhejiang DD Environment Engineering CO. ; LTD
• 年：2016
• 作者机构：浙江省丝纤维材料加工技术重点实验室;浙江东大环境工程有限公司;
• 论文关键词：膜蒸馏 ; 电镀反渗透浓水 ; 产水通量
• 英文论文关键词：membrane distillation ; reverse osmosis concentrates generated in electroplating wastewater ; permeate flux
• 会议召开时间：2016-11-25
• 会议录名称：第五届全国膜分离技术在冶金工业中应用研讨会论文集
• 语种：中文
• 分类号：X781.1;TQ028.8
• 学会代码：LXJT
• 会议名称：第五届全国膜分离技术在冶金工业中应用研讨会
• 会议地点：中国湖南长沙
• 主办单位：中国膜工业协会、中南大学
• 学会名称：中国蓝星(集团)总公司膜科学与技术编辑部
• 页数：5
• 文件大小：287k
• 原文格式：O
• 会议级别：全国

摘要

采用膜蒸馏组件对电镀反渗透浓水进行浓缩处理,研究热料液进口温度T_1和冷料液进口温度T_4等对膜蒸馏的产水通量和产水指标的影响,并对电镀反渗透浓水进行深度浓缩试验.结果表明,随着热料液进口温度T_1的增加,产水通量和造水比均增大;随着冷料液进口温度T_4的增加,产水通量减小但造水比增大.深度浓缩实验结果表明,当电镀反渗透浓水浓缩至8倍时,产水的电导率、COD、浊度和色度分别保持在50μS/cm、15 mg/L、2 NTU和15倍以下,脱盐率、CO_(Cr)、浊度和色度的去除率均保持在99%以上.
An experimental investigation was carried out on concentrating reverse osmosis(RO) brine generated in electroplating wastewater by using membrane distillation(MD) mode with inner heat recovery unit.The effect of hot feed temperature T_1 and cool feed temperature T_4 on permeate flux,gain-out ratio(GOR) and permeate indexes were investigated.The deeply concentrating RO brine generated in electroplating wastewater was studied.The results showed that the permeate flux and GOR increased with the increase of hot feed temperature T_1.With the increase of cool feed temperature,the permeate flux decreased but GOR increased.The results of deeply concentrating RO brine generated in electroplating wastewater showed that when the concentrate times reached 8,the conductivity,COD,turbidity and chroma of permeate were range from 50 μS/cm、11 mg/L、2 NTU and 15 times,respectively.The rejections in permeate were more than 99%.

引文

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