兼性厌氧生物反应器对偶氮染料废水水解机制的试验

Hydrolyzing Mechanism on Azo Dye Wastewater Treatment by Anaerobic Bioreactor

目的探索兼性厌氧生物反应器对活性艳红X-3B废水的水解机制,提高染料废水的可生化性.方法采用水解酸化-MBR法处理活性艳红X-3B废水.结果经水解酸化后,废水活性艳红X-3B的质量浓度平均降低43.64%,CODCr和NH3-N质量浓度均呈升高趋势.原水和水解酸化出水的紫外-可见光光谱图表明,水中活性艳红X-3B的分子结构被破坏,生成了易于生物降解的成分.结论兼性厌氧生物通过水解酸化作用将废水中活性艳红X-3B降解为可生化的有机物,从而降低水中染料含量.当水中易生物降解有机物成分较多时,兼氧微生物同时也大量分解易生物降解有机物.

The paper aims to study the mechanism on facultative anaerobe to hydrolyze reactive brilliant red X-3B wastewater for improving the wastewater to be oxidized by microorganism. The wastewater was treated by test set made up of hydrolyzing reactor and membrane biology reactor. After being hydrolyzed reactive brilliant red X-3B concentration in wastewater reduced averagely by 43.64%, then concentration of chemical oxygen demand and ammonia increased. The wastewater action spectrum by violet and visible light spectrophotometer indicated that reactive brilliant red X-3B was destroyed and turned into easy oxidation organic, and released out ammonia. The test results show the facultative anaerobe in hydrolyzing reactor made reactive brilliant red X-3B into easy oxidation organic, so reactive brilliant red X-3B concentration reduced. If there is much easy oxidation organic in wastewater facultative anaerobe also oxidized it.