偶氮染料废水的水生植物-电解联合净化效应研究

结合电解处理技术和植物修复技术理论,建立了植物-电解联合净化系统,并用于对混合偶氮染料溶液的处理实验。结果表明,偶氮染料废水经植物-电解联合净化后水质更加稳定,脱色率和COD去除率最高分别可达98.7%和85%;出水微生物抑制率和生物抗过氧化能力显著降低,出水苯二胺和芳香胺类物质残留最大削减量分别为81.25%和99.17%。

United purification effect of aquatic plants-electrolysis on azo dye wastewater

Combining electrolysis treatment technique with phytoremediation technique ,the plants-electrolysis united purification system has been set up and used for the treatment experiments of mixed azo dye solution. The re-sults show that after azo dye wastewater has been purified jointly by plant-electrolysis process ,the water quality be-comes more steady. Its maximum decolorization rate and COD removing rate can reach 98.7%and 85%,respective-ly. The effluent microorganism inhibiting rate and biological over-oxidation ability are decreased obviously. The ma-ximum reduction rates of effluent diphenylamine and aromatic amines substance residues are 81.25%and 99.17%, respectively.