ArticleWater science and technology : a journal of the International Association on Water Pollution Research2025
Beneficial effects of micro-electrolysis process in the treatment of TDI wastewater: experimental study and engineering analysis.
Article in Water science and technology : a journal of the International Association on Water Pollution Research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Wastewater generated during toluene diisocyanate (TDI) production contains significant levels of nitrobenzenes (NBs), necessitating preliminary treatment to mitigate biotoxicity and improve biodegradability. Micro-electrolysis has been demonstrated to be an effective method for the degradation of NBs. Combined with Fenton oxidation and biochemical treatment, it has the potential to achieve stable compliance with wastewater standards during TDI production. This study evaluates micro-electrolysis and its synergistic effects with other treatment methods, based on both experimental and engineering practices. Experimental results revealed that micro-electrolysis degraded 48.57% of NBs at a pH of 3 and 0.1% of cast iron powder. Coupling micro-electrolysis with Fenton oxidation boosted degradation to 82.86%. The B/C ratio (B/C, defined as biological oxygen demand/chemical oxygen demand) improved from 0.047 to 0.252. In actual practice, micro-electrolysis reduced the effluent COD
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