Penyisihan COD dan TSS pada Limbah Cair Industri Tahu dengan Kombinasi Metode Elektrokoagulasi dan Filtrasi Menggunakan Media Biji Asam Jawa (Tamarindus indica L)

Neni Damajanti, Saad Ubaidillah
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Abstract

This study aimed to treat tofu wastewater using electrocoagulation and filtration methods with tamarind seed media. This study was conducted on a lab scale with a capacity of 2 liters, using Al-Al electrodes with a voltage of 13 volts. The variables studied were EC time (20, 30, 40, 50, and 60 minutes) and electrode plate area (90 cm2 and 99 cm2) with a thickness of 1 mm. The parameters measured were COD and TSS of tofu wastewater before and after treatment. The results showed that the electrocoagulation and filtration methods with tamarind seed media could reduce the COD and TSS levels of tofu wastewater significantly. The optimal condition was achieved at EC time of 50 minutes and plate area of 99 cm2, with COD removal of 78.7% and TSS removal of 88%. This was due to the production of metal ions (Al3+) as destabilizing agents at the anode, the formation of flocs by protein and tannin in tamarind seeds, and the pH reduction by ascorbic acid and citric acid in tamarind seeds. This method had the advantage of not using synthetic chemicals and producing a more environmentally friendly final product.
鳕鱼和TSS在工业废料中是如何结合用爪哇酸子集(Tamarindus indica)的电凝和过滤方法而知道的
以罗望子为培养基,采用电凝法和过滤法处理豆腐废水。这项研究是在实验室规模上进行的,容量为2升,使用电压为13伏的Al-Al电极。研究的变量为EC时间(20、30、40、50和60分钟)和电极板面积(90 cm2和99 cm2),厚度为1 mm。测定了处理前后豆腐废水的COD和TSS。结果表明,以罗望子为介质的电絮凝和过滤方法可显著降低豆腐废水中的COD和TSS水平。最佳工艺条件为EC时间为50 min,板面积为99 cm2, COD去除率为78.7%,TSS去除率为88%。这是由于在阳极产生金属离子(Al3+)作为不稳定剂,罗望子中的蛋白质和单宁形成絮凝体,以及罗望子中的抗坏血酸和柠檬酸降低pH。这种方法的优点是不使用合成化学品,生产出更环保的最终产品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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