摘要
对生物接触氧化法处理OCC废纸造纸废水可行性及主要影响因素进行了研究。试验结果表明,生物接触氧化法处理OCC废纸造纸废水效果较好,接种污泥类型对于反应器启动有明显的影响,采用同类废水生化处理系统污泥接种时启动快,效果好;有机物的去除率随HRT(水力停留时间)的增加而增加,但HRT足够长时再增加HRT对处理效果影响不大;去除率随着曝气量的增加呈现先升高后下降的趋势,实验确定最佳气水比为30∶1;温度在40℃时CODCr的去除率最高,低于20℃和高于50℃时CODCr的去除率急剧下降。
The feasibility and major influencing factors of OCC pulping effluent treatment with biological contact oxidation process are studied. The results show that the effect of treating OCC effluent with biological contact oxidation process was preferable; the types of inoculation sludge had a significant effect on the start up of the reactor - the start up was faster and the effect was better when the same type of effluent biochemical treatment systems were used in sludge inoculation; the removal rate of organic substance increased with the increase of HRT （ hydraulic residence time）, while the treatment effect would stay almost the same with the increase of HRT after it was long enough; the trend of removal rate was that of a rise-fall model with the increase of blow air amount and when the optimal gas water ratio was 30 ： 1, temperature was 40℃ the COD removal rate was the highest and the COD sludge inoculation removal rate sharply declined when the temperature was lower than 20℃ or higher than 50℃.
出处
《中华纸业》
CAS
北大核心
2006年第1期64-66,共3页
China Pulp & Paper Industry
关键词
接触氧化
OCC
废水
contact oxydation
OCC
effluent
