Electrochemical phenomena were implemented to treatment of industrial wastewater containing high nitrogen concentrations. Organic nitrogen and ammonia, measured by Total Kjeldahl Nitrogen (TKN), raise concerns for most conventional wastewater treatment plants having limited capability of their removal. To avoid contamination of ecosystems with an excessive nitrogen discharge, environmental regulations do not permit for dilution of effluent containing nitrogenous compounds but rather require their adequate removal. This is a challenge for many industrial facilities producing wastewater containing TKN at the level of thousands milligrams per liter. The studied wastewater comprised such TKN along with a significant concentration of ferrous ions in a dissolved form. It was found that ferrous ions in so high concentrations could be advantageous as they provide a platform for designing a sustainable process. In this study, combined electrochemical advanced oxidation and modified electro-Fenton like process was designed and validated at three distinct scales with the goal of finding a scalable solution for TKN removal. An Electro-Fenton Sequential Batch Reactor (EF-SBR) was developed to facilitate the removal efficiency of ammonia and TKN, by more than 99% and 98%, respectively. The reproducibility of the process was validated through several SBR cycles. Moreover, the implementation of EF-SBR permitted to optimize the specific energy consumption and resulted in a pronounced decrease in sludge production.

电化学现象用于处理含氮量高的工业废水。用总凯氏氮（TKN）测量的有机氮和氨引起大多数常规废水处理厂的去除能力有限的问题。为了避免过多的氮排放污染生态系统，环境法规不允许稀释含氮化合物的废水，而是要求将其充分去除。对于生产含TKN浓度为每升数千毫克的TKN的许多工业设施而言，这是一个挑战。所研究的废水包含此类TKN以及显着浓度的溶解形式的亚铁离子。发现如此高浓度的亚铁离子可能是有利的，因为它们提供了设计可持续过程的平台。在这项研究中，设计并结合了电化学先进的氧化和改良的电子芬顿样工艺，并在三个不同的规模上进行了验证，目的是寻找可扩展的TKN去除方案。开发了电子芬顿顺序间歇反应器（EF-SBR），以促进氨和TKN的去除效率分别提高99％和98％以上。通过多个SBR循环验证了该过程的可重复性。此外，EF-SBR的实施可以优化能耗，并导致污泥产量显着下降。设计并结合了电化学高级氧化技术和改进的类似于电Fenton的工艺，并在三个不同的规模上进行了验证，目的是找到可扩展的TKN去除解决方案。开发了电子芬顿顺序间歇反应器（EF-SBR），以促进氨和TKN的去除效率分别提高99％和98％以上。通过多个SBR循环验证了该过程的可重复性。此外，EF-SBR的实施可以优化能耗，并导致污泥产量显着下降。设计并结合了电化学高级氧化技术和改进的类似于电Fenton的工艺，并在三个不同的规模上进行了验证，目的是找到可扩展的TKN去除解决方案。开发了电子芬顿顺序间歇反应器（EF-SBR），以促进氨和TKN的去除效率分别提高99％和98％以上。通过多个SBR循环验证了该过程的可重复性。此外，EF-SBR的实施可以优化能耗，并导致污泥产量显着下降。开发了电子芬顿顺序间歇反应器（EF-SBR），以促进氨和TKN的去除效率分别提高99％和98％以上。通过多个SBR循环验证了该过程的可重复性。此外，EF-SBR的实施可以优化能耗，并导致污泥产量显着下降。开发了电子芬顿顺序间歇反应器（EF-SBR），以促进氨和TKN的去除效率分别提高99％和98％以上。通过多个SBR循环验证了该过程的可重复性。此外，EF-SBR的实施可以优化能耗，并导致污泥产量显着下降。