高浓度山梨酸废水生化处理

Bio-treatment of high concentration sorbic acid effluent

针对高浓度山梨酸废水具有有机物浓度高、难降解的特点 ,从优化厌氧生化处理入手 ,设计了厌氧—生物接触氧化法的工艺路线进行实验研究。结果表明 ,经 5d厌氧处理后 ,BOD/COD值由 0 .17提高到 0 .2 8,再配合12h生物接触氧化处理 ,使COD从 7.0 0× 10 3mg/L左右降至 1.5 8× 10 3mg/L ,COD平均总去除率达 77.4%。

A biological approach, the process of anaerobic-bio-contact oxidation was designed for the sorbic acid production effluent treatment. Anaerobic biol ogical treatment according to the characteri stics of the effluent containing organic compounds at high concentrations was op timized.Th e results showed that the treated effluent COD was about 1.58 mg/L and COD remo val at 77.4% was reached after 5d anaerobic treatment, the ratio of BOD to COD raised from 0.17 to 0.28, and then integrate 12 h bio-contact oxidation tr eatment when the effluent intake COD was about 7.00×10 3 mg/L.