燃煤电厂脱硫废水浓缩工艺实验研究

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英文篇名：Experimental studies on FGD wastewater concentration in coal-fired plant 作者：胡大龙 ; 降晓艳 ; 张宁 ; 蒋路漫 ; 王园园 ; 许臻 ; 葛红花 ; 周振 英文作者：HU Da-long;JIANG Xiao-yan;ZHANG Ning;JIANG Lu-man;WANG Yuan-yuan;XU Zhen;GE Hong-hua;ZHOU Zhen;Xi'an Thermal Power Research Institute Company Limited;College of Environmental and Chemical Engineering,Shanghai University of Electric Power; 关键词：脱硫废水 ; 预处理 ; 膜浓缩 ; 回收率 ; 末端废水 英文关键词：FGD wastewater;;pretreatment;;membrane concentration;;recovery rate;;terminal waste-water 中文刊名：SXHG 英文刊名：Applied Chemical Industry 机构：西安热工研究院有限公司;上海电力学院环境与化学工程学院; 出版日期：2018-08-10 出版单位：应用化工 年：2018 期：v.47;No.318 基金：国家自然科学基金项目(51408352);; 上海市科委标准化推进专项科研项目(16DZ0503300) 语种：中文; 页：SXHG201808019 页数：4 CN：08 ISSN：61-1370/TQ 分类号：84-87

摘要

对脱硫废水进行了"分步二级软化-超滤-反渗透"浓缩。结果表明,Ca(OH)_2-Na_2CO_3分步二级软化可提高软化效率,软化出水总硬小于1 mmol/L;超滤出水浊度小于1.0 NTU,SDI小于3.0,微滤系统运行稳定;反渗透回收率45%,浓缩后末端废水量降至5.5 m~3/h,RO产水可作为锅炉补给水系统水源。
        The desulphurization was wastewater,this paper carried out concentrated with two-step softeningUF-RO process. The results showed that two-step softening of Ca( OH)_2-Na_2 CO_3 could improve the efficiency of softening. The total hardness of effluent was less than 1 mmol/L. The turbidity and SDI of UF effluent were less than 1. 0 NTU and 3. 0,respectively. The UF system was proved to be reliable and stable. The RO recovery rate was 45%,and the quantity of terminal waste-water was reduced to 5. 5 m~3/h after concentration. The RO product water can be used as the water source for the boiler water treatment system.

引文

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