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首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >p-Nitrosodimethylaniline (RNO)-Based Evaluation of Enhanced Oxidative Potential During Electrochemical Treatment of High-Salinity Wastewater
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p-Nitrosodimethylaniline (RNO)-Based Evaluation of Enhanced Oxidative Potential During Electrochemical Treatment of High-Salinity Wastewater

机译:基于对亚硝基二甲基苯胺(RNO)的高盐度废水电化学处理过程中增强氧化电位的评估

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摘要

The electrochemical bleaching of p-nitrosodimcthylaniline (RNO) was investigated in order to apply its reactions to evaluating electrochemical oxidation. The bleaching rate of RNO during electrochemical treatment was accelerated by the presence of chloride ions. The initial bleaching rate of RNO was found to be accelerated during the electrolysis of NEI4C1, suggesting that electrochemically generated chloramines are sufficiently strong oxidants to convert RNO. A method of evaluating direct or indirect oxidative potential for electrochemical treatment was proposed, provided that the initial bleaching rate of RNO is consistent with low concentrations of RNO. The saline wastewatei" of Japanese pickle production processes (brown mustard and Japanese radish) was electrochemically treated. The ammonium ion (18 and 8mg L~(-1)) was almost completely removed after lh of treatment in the presence of NaCl (3%). The removal rate of total organic carbon (TOC) exceeded 90% lor 7mgL"~' and 60% for 352mgL~(-1), indicating that electrochemical treatment is useful in removing ammonium ions and organic substances from high-salinity wastevvaler.
机译:对硝基亚硝基二甲基苯胺(RNO)的电化学漂白进行了研究,以便将其反应用于评估电化学氧化。氯化物离子的存在促进了电化学处理过程中RNO的漂白速率。发现在NEI4C1的电解过程中,RNO的初始漂白速率加快了,这表明电化学生成的氯胺是足够强的氧化剂,可以转化RNO。提出了一种评估电化学处理的直接或间接氧化电位的方法,条件是RNO的初始漂白速率与低浓度的RNO一致。对日本腌菜生产过程中的盐渍废水(芥菜和萝卜)进行了电化学处理。在NaCl(3%)存在下处理1h后,铵离子(18和8mg L〜(-1))几乎被完全去除。 )。总有机碳(TOC)的去除率超过90%或7mgL“〜”,而352mgL〜(-1)的去除率超过60%,这表明电化学处理可用于去除高盐度废物中的铵离子和有机物质。

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