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Treatment of Coal Stockpile Wastewater by Electrocoagulation Using Aluminum Electrodes

机译：用铝电极电凝处理煤储存废水

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The performance of electrocoagulation using aluminum electrodes for the removal total suspended solid and heavy metals from actual coal stockpile wastewater was studied. In a batch electrochemical cell experimental setup, two monopolar aluminum (Al) plate were used as electrodes (anode and cathode). The effects of relevant coal stockpile wastewater characteristics such as pH and total suspended solid (TSS), and important process variables such as current density and operating time on heavy metals removal efficiencies have been explored. Preliminary results show that the electrocoagulation process is able to enhance the removal of total suspended solid and heavy metal contents. The batch experiment results showed that the high heavy metals contained coal stockpile wastewater can be effectively treated using electrocoagulation. The overall heavy metals removal efficiencies have been obtained at 89.7% for ferrous and 94.6% for manganese, respectively. The removal rates of those elements were increase with operating time. Therefore, electrocoagulation technique to removal high content of heavy metal and TSS from coal stockpile wastewater is found effective and environmental friendly.
机译：研究了使用铝电极进行电凝的性能，用于去除实际煤炭废水中的除去总悬浮固体和重金属。在批量电化学电池实验装置中，使用两个单极铝（Al）板作为电极（阳极和阴极）。探讨了相关煤炭废水特性的影响，如pH和总悬浮固体（TSS），以及诸如电流密度和重金属清除效率的电流密度和操作时间的重要过程变量。初步结果表明，电凝工艺能够增强去除总悬浮的固体和重金属含量。批量实验结果表明，含有煤储备废水的高重金属可以使用电凝来有效处理。总体重金属去除效率分别以89.7％的金属金属剂获得，分别为锰的94.6％。这些元素的去除率随运行时间增加。因此，煤炭储存废水中去除高含量高金属和TSS的高含量的电凝技术得到了有效和环保。

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