Enhancing electrochemical treatment of nitrogen-containing organic wastewater by iron filings: Performance, inhibition of organochlorine by-products accumulation and cost-effectiveness

Low current efficiency and the formation of organochlorine by-products were the critical bottlenecks in the practical applicability of electrochemical oxidation technology for nitrogen-containing organic wastewater (NCOW) treatment. In this study, a filled-bed electrochemical system with waste iron filings (IFES) was constructed to enhance the removal efficiency of total nitrogen (TN) and chemical oxygen demand (COD) as well as inhibition of the...