高浓度染料合成废水处理研究

Commercial Treatment System for Concentrated Dye Synthesis Effluent

针对高浓度染料合成废水,通过实验室试验和中间试验成功地开发了相应的废水处理工程。被处理的废水流量为1000m3/d,废水处理后排放到市政污水截流系统。原废水中超出排放标准的指标为CODCr和色度,它们的浓度分别为3000mg/L和8000(稀释倍数)。废水处理主体流程包括催化氧化(二氧化氯)处理、特殊开发的凝聚处理以及使用一种有效分解色度物质和难生物降解物质的A/O(兼氧/好氧生物降解)系统。经处理废水的CODCr、色度的浓度分别低于300mg/L和50(稀释倍数),符合桃浦地区市政污水截流系统废水纳管标准。

A concentrated dye synthesis effluent containing 3 000 mg/L of CODe, and 8 000-fold dilution of color is treated by a process containing catalytic oxidation, coagulafinn with a patented coagulant, and a MO biodegradafion using a specially screened culture with a perfect performance of breaking down color and unmanageable pollutants. The effluent from the wastewater plant meets all the requirements by the Shanghai Sewage Works Acceptance.