ASBR处理高浓度甲醇废水的研究  

Treatment of high concentration methanol wastewater using an anaerobic sequencing batch reactor

作　　者：邵享文[1] 

机构地区：[1]福州大学土木工程学院,福建福州350108

出　　处：《福州大学学报（自然科学版）》2011年第4期603-607,共5页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学青年基金资助项目(51008080);西北水资源与环境生态教育部重点实验室基金资助项目(2010JS029);福州大学科技发展基金资助项目(826821);福州大学人才基金资助项目(XRC-0845)

摘　　要：采用ASBR处理高浓度甲醇废水,考察了甲醇的厌氧抑制性,容积负荷和水力停留时间对COD去除率的影响,及不同负荷下甲醇代谢途径的变化.试验结果表明,甲醇浓度在3 000～30 000 mg.L-1内对ASBR系统无厌氧抑制性;系统的最佳COD容积负荷为4.6～9.1 kg.m-3.d-1.甲醇的代谢途径对COD的去除率有很大影响,乙酸代谢速率随负荷的提高而升高.当容积负荷小于8 kg.m-3.d-1时,乙酸代谢速率占整个甲醇代谢速率的不到5%,COD去除率达95%以上;当容积负荷为12 kg.m-3.d-1时,乙酸代谢速率为15.8%,处理效率下降为78%.Anaerobic treatment of high concentration methanol wastewater was studied using an anaerobic sequencing batch reactor（ASBR）.The anaerobic inhibition of methanol,the effects of volume load and HRT on the treatment efficiency,and the metabolism variation of different methanol load were studied in the experiment.The results of the anaerobic inhibition experiment showed that the activity of methanogenic bacteria wouldn＇t be inhibited by methanol wastewater when the concentration of COD ranged from 3 000 to 30 000 mg·L-1.The system worked efficiently when the system volume loading was 4.6~9.1 kg·m-3·d-1.The route by which methanol was converted into methane had great effect on the COD removal of system.The acetate utilization rate increased with the volume loading.When the volume loading was 8 kg·m-3·d-1,the acetate utilization rate was 5% and the COD removal was over 95%.While the volume loading was 12 kg·m-3·d-1,the acetate utilization rate was 15.8% and the COD removal is less than 78%.

关 键 词：ASBR 废水 乙酸 甲醇 代谢速率 

分 类 号：X703.1[环境科学与工程—环境工程]