对铁碳处理硝基酚废水的研究

Discussion on Iron-Carbon Treating Nitrophenol Waste Water

铁碳降解水中难降解有机污染物的影响因素、最佳工艺参数及处理效果;初步探讨了氧化降解污染物的作用机理;通过分析污染物降解的中间产物,提出了污染物降解的可能途径。探讨了pH、铁碳用量、温度以及锰矿物的粒径等对处理效果的影响,在最佳的工艺条件下,CODCr的去除率达到95%以上,TOC测定表明:大部分硝基酚被氧化降解为H2O和CO2。对硝基酚的降解途径主要是微电解将对硝基酚还原为对氨基酚,对氨基酚在酸性条件下被软锰矿氧化为H2O和CO2做探索性研究。

The article preliminalyly discusses the influence factor of organic pollutant which difficultly degrades in Iron - carbon degradative water, the best technological parameter and treated effect; It also inquires into effect mechanism of oxidizing degradative polhant, through analyzes midiron result of pollutant degradation and puts foward possible way of pollutant degradation. Discussing pH, usage amount of iron - carbon temperature and grain diameter of manganese mineral and etc. influences on treating result, in the best technological condition, the dislodging rate of CODcr reaches over 95 percent, meascring TOC shows that most of nitrophenol has oxidized and degraded H2O and CO2 .The degradation way of nitrophenol main are microelectrolysis that will make nitophenol rctun to aminophenol and also discusses aminophenol has been oxidized into H2O and CO2 by soft manganese mineral.