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CN103880224A 一种添加卤化钠促进电氧化降解废水中五氯酚的方法 无效 - 撤回

一种添加卤化钠促进电氧化降解废水中五氯酚的方法
摘要：
本发明公开了一种通过加入NaCl，NaBr，NaI以促进电氧化降解废水中五氯酚的方法。该新型电催化氧化降解废水中五氯酚的方法包括保持废水中五氯酚的浓度在20-100mg·L-1，添加剂（NaCl，NaBr，NaI）于废水中投加量为1-20mmol·L-1，pH保持在2.0-10.0，控制反应温度为20-70℃，蠕动泵的流量为10-100mL·min-1，电化学反应器的电流密度为2-20mA·cm-2和电化学反应器的阳极电极面积为20-40cm2。添加剂的加入克服了直接电催化氧化法电流效率低，对电极材料要求高的缺点，实现五氯酚的快速高效降解，在废水量为200ml，反应时间1-2小时的条件下，五氯酚转化率达到75%-99%。
摘要（英）：

The invention discloses a method for promoting electrooxidation degradation of pentachlorophenol in waste water by adding NaCl, NaBr, and NaI. The novel method for electrooxidation degradation of pentachlorophenol in waste water comprises that: the concentration of pentachlorophenol in waste water is maintained to be 20-100 mg.L-1, the adding amount of the additives (NaCl, NaBr, and NaI) into the waste water is 1-20 mmol.L-1, the pH is maintained to be 2.0-10.0, the reaction temperature is controlled to be 20-70 DEG C, the flow rate of a peristaltic pump is 10-100 mL.min-1, the current density in an electrochemical reactor is 2-20 mA.cm-2, and the anode electrode area of the electrochemical reactor is 20-40 cm2. The addition of the additive overcomes the disadvantages of low current efficiency and high requirement for electrode material for direct electrocatalytic oxidation methods, and realizes rapid and high-efficient degradation of pentachlorophenol. The conversion rate of pentachlorophenol reaches 75%-99% under the condition with a waste water amount of 200 ml and reaction time of 1-2 hours.

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