电化学水垢去除技术中试实验研究

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英文篇名：Experimental study on pilot test of electrochemical scale removal technology 作者：徐浩 ; 袁孟孟 ; 罗清林 ; 杨鸿辉 ; 延卫 ; 刘云鹏 ; 张文龙 英文作者：Xu Hao;Yuan Mengmeng;Luo Qinglin;Yang Honghui;Yan Wei;Liu Yunpeng;Zhang Wenlong;Department of Environmental Science and Engineering,Xi'an Jiaotong University; 关键词：电化学 ; 水垢 ; 循环冷却水系统 英文关键词：electrochemistry;;scale;;recirculating cooling water system 中文刊名：工业水处理 英文刊名：Industrial Water Treatment 机构：西安交通大学环境科学与工程系; 出版日期：2019-07-20 出版单位：工业水处理 年：2019 期：07 基金：国家自然科学基金项目(21507104);; 陕西省自然科学基础研究计划项目(2017JM2015) 语种：中文; 页：45-49 页数：5 CN：12-1087/X ISSN：1005-829X 分类号：X703

摘要

以折流电化学反应器为核心,构建除垢中试系统,研究不同参数对水垢去除过程的影响。结果表明,中试条件下垢样为层叠状的方解石型碳酸钙。阳极酸性区对碱度有去除作用,使得碱度去除率高于硬度去除率,降低水体结垢倾向。阴极电流密度过大造成水垢沉积效率降低;优化阴极电流密度为1.5 mA/cm~2。阴极面积对水垢沉积过程影响较大,大阴极面积有利于提高沉积速率、降低能耗。数学建模表明箱体扁平化有利于提高装置除垢能力。
        A baffled electrochemical reactor was used as the core unit to construct a pilot system for electrochemical descaling. The effects of different parameters on scale removal performance were studied. The results showed that the scale samples generated were calcite-type calcium carbonate with a laminated morphology. The acidic region of the anode had a removal effect on the alkalinity,so that the alkalinity removal rate was higher than the hardness removal rate,thus reducing the tendency of scaling. When the cathode current density was too large,the deposition efficiency of scale at the cathode decreased. An optimum cathode current density value was 1.5 m A/cm~2. The cathode area showed a significant influence on the scale deposition process. A large cathode area was useful to increase scale deposition rate and reduce energy consumption. The results of mathematical modeling showed that the flattening of the cabinet would increase the descaling capacity of the manual device.

引文

[1]田松峰,牛腾赟,谷秋实,等.新型凝汽器投球方案及胶球清洗的数值模拟[J].汽轮机技术,2017,59(3):203-206.
    [2]张玉玲,康少鑫,李伟,等.天冬氨酸-衣康酸共聚物对碳酸钙阻垢性能研究[J].功能材料,2017,48(1):1105-1108.
    [3] Gorni-Pinkesfeld O,Hasson D,Semiat R,et al. Hybrid electrolysiscrystallization system for silica removal from aqueous solutions[J].Desalination,2017,407:41-45.
    [4]张宁,李云开,司哺春,等.电化学法对滴灌用再生水的杀菌和碱度硬度去除效果[J].农业工程学报,2017,33(10):154-160.
    [5] Zaslavschi I,Shemer H,Hasson D,et al. Electrochemical CaCO3scale removal with a bipolar membrane system[J]. Journal of Membrane Science,2013,445:88-95.
    [6] Hasson D,Sidorenko G,Semiat R. Calcium carbonate hardness removal by a novel electrochemical seeds system[J]. Desalination,2010,263(1/2/3):285-289.
    [7] Hasson D,Lumelsky V,Greenberg G,et al. Development of the electrochemical scale removal technique for desalination applications[J].Desalination,2008,230(1/2/3):329-342.
    [8] Gabrielli C,Maurin G,Francy-Chausson H,et al. Electrochemical water softening:principle and application[J]. Desalination,2006,201(1/2/3):150-163.
    [9]赵阳,陈永昌,孟陶,等.超声波阻垢性能的实验研究[J].工程热物理学报,2013,34(11):2144-2146.
    [10]安慧凤,刘智安,赵巨东,等.高压静电场对火电厂循环冷却水阻垢效果及机理[J].环境工程学报,2013,7(11):4295-4299.
    [11]张旭,刘智安,赵巨东,等.磁电复合式循环冷却水阻垢处理装置及阻垢实验研究[J].工业水处理,2013,33(10):34-36.
    [12]徐浩,延卫,汤成莉.电子水处理技术[J].工业水处理,2009,29(8):5-9.
    [13]徐浩,延卫,汤成莉.水垢的电化学去除工艺与机理研究[J].西安交通大学学报,2009,43(5):104-108.
    [14]徐浩,延卫.阴极电流密度对电化学除垢技术生成水垢的影响[J].西安交通大学学报,2013,47(7):47-51.
    [15]徐浩,延卫.一种电化学阻垢方法:CN,106277369A[P]. 2017-01-04.
    [16]胡印胜,杨庆峰,徐星,等.一种以诱导结晶法处理工业水系统及方法:CN,201710148601.0[P]. 2017-05-31.