水解酸化-好氧工艺处理感光材料有机废水研究

感光材料有机生产废水含有多种合成有机物，其BOD5／CODer比值为0．46～0．48，可生化性良好，经水解酸化处理后该废水的BOD5／CODcr的比值可提高至0．54～056，平均增加了17％左右。水解酸化－好氧串联工艺对该废水总的处理效果表明：在废水CODer进水浓度2000～2500mg／L范围内，CODer总去除率可达95％左右，BOD5总去除率可达97％左右；水解酸化后好氧生化系统的动力学半速度常数Ks＝103mg／L，最大比降解速度K＝5．0／日。

Treatment of film wastewater with hydrolytic acidification-aerobic process

The microbial degradation with hydrolytic acidification-aerobic process was investigated to charac-terize the biodegradability of the film wastewater containing many kinds of synthetic organic matter with CODcr concentration 2000 ~ 2500 mg/L. The experimental results demonstrated that the biodegradability (BOD5/CODer) of film wastewater could be raised from 0.46~0. 48 to 0. 54~0. 56 by hydrolytic acidifica-tion. The hydrolytic acidification-aerobic process results in good removal of BOD5 (97% ) and CODcr (95%)respectively and suggests the saturation constant (Ks) of 103 mg/L and the maximum specific substrate uti-lization rate (K) of 5. 0 d-1.