共查询到20条相似文献,搜索用时 109 毫秒
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综述了国内外电化学技术去除污染物的研究现状,近几年来出现的一些新技术如电化学生成强氧化剂氢氧自由基技术、电催化降解技术、光电一体化技术、电解氯氧化技术等,探讨了电化学技术处理工业废水的发展趋势. 相似文献
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电化学法处理工业废水和生活污水的研究与应用 总被引:1,自引:0,他引:1
工业废水和城市生活废水中组成越来越复杂,可采用电化学法进行废水处理。综述了电化学法处理废水的优缺点,介绍了电解絮凝法、电解气浮法、电催化氧化法和电-Fenton法的作用原理,举例说明了电化学法在海上平台生活污水、高盐度废水、含铬废水和乳化废水处理中的应用,并提出了电化学法目前应用所遇到的问题和今后的研究发展方向。 相似文献
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电化学处理高浓度有机废水的研究进展 总被引:1,自引:0,他引:1
随着现代工业的迅速发展,工业废水的排放量日益增加。这给人们的生活和生产带来了极大的危害。尤其是工业高浓度有机废水,其毒性高,对环境污染大,因而其废水的处理技术受到了广泛的关注。电化学方法具有容易控制,容易建立密闭循环且无二次污染等优点,在处理有机废水方面受到广泛关注,应用很广。文章介绍了高浓度有机废水的各种电化学处理方法的机理及研究进展,并指出了今后的研究发展 相似文献
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Pablo Caizares Leopoldo Martínez Rubn Paz Cristina Sez Justo Lobato Manuel A Rodrigo 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2006,81(8):1331-1337
In this work, the electrochemical oxidation of an actual industrial waste with conductive diamond anodes has been studied. The wastewater is the effluent of a wastewater treatment plant consisting of a Fenton reactor followed by a settler and a sand filter, in which the wastes generated in an olive oil mill are treated. These wastes contain a residual chemical oxygen demand of nearly 700 mg dm?3 which cannot be further oxidized with the Fenton process. The electrolyses were carried out under galvanostatic conditions, using a bench‐scale plant equipped with a single‐compartment electrochemical flow cell. Boron‐doped diamond (BDD) and stainless steel (AISI 304) were use as anode and cathode of the cell, respectively. The complete mineralization of the waste was obtained with high current efficiencies limited only by mass transport processes. This confirms that besides the hydroxyl radical‐mediated oxidation that occurs in the Fenton process, the electrochemical oxidation with conductive diamond electrodes combines other important oxidation processes such as direct electro‐oxidation on the BDD surface and oxidation mediated by other electrochemically formed compounds generated in this electrode. Copyright © 2006 Society of Chemical Industry 相似文献
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针对电化学废水处理过程出口离子浓度无法在线检测的问题,提出了一种基于状态转移的K均值聚类算法的软测量建模方法。在分析内部反应机理的基础上,结合物料平衡和吸附动力学定理建立电化学过程的机理模型;由于单一的软测量模型难以满足实际的精度要求,提出一种基于状态转移的K均值聚类算法将原始数据集进行聚类,应用状态转移算法对K均值算法的初始聚类中心进行优化,同时,引入离群值矩阵动态迭代同时实现数据聚类和异常值检测;最后,对聚类后的不同训练子集分别建立子模型,综合各子模型得到基于多模型切换方法的软测量模型。通过某废水处理厂的现场数据进行实例验证,结果证明了所建立的电化学废水处理过程离子浓度软测量模型合理有效。 相似文献
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Liping Huang Shaoan Cheng Guohua Chen 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2011,86(4):481-491
Recalcitrant wastes including dyes, pesticides, explosives, heavy metals, polyalcohols, furan derivatives and phenolic substances, are of special concern owing to their recalcitrance and persistence in the environment. Bioelectrochemical systems (BESs) including microbial fuel cells (MFCs) and microbial electrolysis cells (MECs), integrate three important wastewater treatment options, namely, biological treatment, electrolytic dissociation and electrochemical oxidation/reduction, and are regarded as a new sustainable and effective strategy for treatment of these wastes. The simultaneous and cooperative roles of these multiple units running in parallel in BESs contribute to the efficiency of recalcitrant waste treatment, while substrate metabolism is considered to be a key step triggering different unit operations. An up‐to‐date review is provided on recent research and development in BESs‐based recalcitrant wastes treatment. MFCs and MECs, as two types of BESs, are summarized in terms of treatment efficiency, recalcitrant substance metabolic pathway and microorganism diversity after a brief introduction to the electrochemical process for recalcitrant waste treatment. The scientific and technical challenges that have yet to be faced in the future are also discussed. Copyright © 2010 Society of Chemical Industry 相似文献