Environmental pollution that caused by electroplating waste disposal into the environment can cause harmful effects for human life. Before it is discharged into the environment need the method to treatment this waste. Electro coagulation is one of the wastewater treatment methods which are interchangeable to treat the electroplating industrial waste. This electroplating waste contain heavy metals such as chromium (Cr), Nickel (Ni) and Copper (Cu). Electro coagulation experiments have been conducted with the independent variable which are the type of plate alumunium (Al) and Iron (Fe), and also Current density 40 mA/cm2, 50 mA/cm2, 60 mA/cm2 and 70 mA/cm2. This study uses a powerful current 5 Amperes, time operation 120 minutes, with the sampling time every 15 minutes, number of plate 4 pieces, 2 cm distance between electrodes. Based on experiments have been conducted that obtained best results at the highest current density removal efficiency of chromium allowance 99,60 % for using iron electrodes. Whereas for nickel removal, the best results at the highest current density removal efficiency of nickel allowance 96,20 % for using alumunium electrodes. Other measurements in this study that may affect the process of electro coagulation include pH, temperature, TSS, TDS and turbidity.
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机译：将废物电镀到环境中造成的环境污染可能对人类生命造成有害影响。在将其排入环境之前，需要采用方法来处理这种废物。电凝是废水处理方法之一，可互换用于处理电镀工业废物。该电镀废料包含重金属，例如铬（Cr），镍（Ni）和铜（Cu）。已经使用自变量进行了电凝实验，这些自变量是板状铝（Al）和铁（Fe）的类型，以及电流密度40 mA / cm2、50 mA / cm2、60 mA / cm2和70 mA / cm2。本研究使用强大的电流5安培，时间操作120分钟，每15分钟采样一次，板数为4个，电极之间的距离为2 cm。基于已进行的实验，在使用铁电极时，在以99.60％的铬余量实现最高电流密度去除效率时获得了最佳结果。对于镍的去除，在使用铝电极的情况下，以最高的电流密度去除镍余量96,20％可获得最佳效果。这项研究中可能影响电凝过程的其他指标包括pH，温度，TSS，TDS和浊度。
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