This study investigated the use of iron and aluminum and their combinations as electrodes to determine the technically sound and economically feasible electrochemical approach for the treatment of anaerobic digestion effluent. The results indicated that the use of iron as anode and cathode is the most suitable solution among different electrode combinations. The reduction of turbidity, total chemical oxygen demand, total phosphorus, total coliforms, Escherichia coli , Enterococci, and phages in the reclaimed water were 99%, 91%, 100%, 1.5 log, 1.7 log, 1.0 log, and 2.0 log, respectively. The economic assessment further concluded that the average treatment cost is $3 per 1000 L for a small-scale operation handling 3000 L wastewater/day. This study demonstrated that the electrocoagulation (EC) is a promising technique for the recovery and reclamation of water from anaerobic digestion effluent. Even though its energy consumption is higher and the nitrogen removal is insufficient compared to some conventional wastewater treatment technologies, there are several advantages of the EC treatment, such as short retention time, small footprint, no mixing, and gradual addition of coagulants. These features make EC technology applicable to be used alone or combined with other technologies for a wide range of wastewater treatment applications.

中文翻译：

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电凝聚对高强度有机废水——厌氧消化出水的水回收和细菌/病毒指标降低的技术经济分析

本研究调查了铁和铝及其组合作为电极的使用，以确定技术上合理且经济上可行的电化学方法来处理厌氧消化流出物。结果表明，在不同的电极组合中，使用铁作为阳极和阴极是最合适的解决方案。再生水中浊度、总化学需氧量、总磷、总大肠菌群、大肠杆菌、肠球菌、噬菌体的降低率分别为99%、91%、100%、1.5 log、1.7 log、1.0 log、2.0 log，分别。经济评估进一步得出结论，对于每天处理 3000 升废水的小规模运营，平均处理成本为每 1000 升 3 美元。该研究表明，电凝聚 (EC) 是一种很有前景的技术，可用于从厌氧消化流出物中回收和回收水。尽管与一些传统废水处理技术相比，其能耗较高且脱氮量不足，但EC处理仍具有停留时间短、占地面积小、无需混合、可逐步添加混凝剂等优点。这些特点使 EC 技术既可单独使用，也可与其他技术结合使用，用于广泛的废水处理应用。例如保留时间短、占地面积小、无需混合、可逐步加入混凝剂。这些特点使 EC 技术既可单独使用，也可与其他技术结合使用，用于广泛的废水处理应用。例如保留时间短、占地面积小、无需混合、可逐步加入混凝剂。这些特点使 EC 技术既可单独使用，也可与其他技术结合使用，用于广泛的废水处理应用。