工业废水集中处理技术.docVIP

不同来源高浓度有机废水的集中处理：分类、预处理和设计 张伟军1 高雅2 马士龙3 张明3 王东升1* 徐岳阳4 （1. 中国科学院生态环境研究中心环境水质学国家重点实验室，北京 100085； 2. 西安建筑科技大学环境与市政工程学院，西安 710055； 3. 华东师范大学资源与环境科学学院，上海 200062； 4. 上海集惠环保科技发展有限公司，上海 200000） 摘 要：本研究按照水质情况，将多种来源于不同工业生产过程中的高浓度有机废水划分为高悬浮固体乳化液废水、难生化高浓度有机废水、高悬浮固体不含油有机废水、含铬有机废水和杂质含量较少的乳化液废水五类，分别采用酸化破乳/Fenton氧化/混凝/絮凝、Fenton氧化/混凝/絮凝、混凝/絮凝、还原/混凝/絮凝、震动膜过滤技术作为生化预处理技术，并通过小试和中试验证了各技术的效果。实验结果表明，按照上述分类结果，采用不同预处理技术可以得到良好的效果，废水水质明显改善，满足继续生化处理的基本条件。各预处理生产装置处理效果稳定，同时生化系统已经稳定运行120天以上，COD去除率超过90%，出水经过低剂量的Fenton试剂处理后可达到《污水排入城镇下水道水质标准》（CJ343-2012）。 关键字：工业废水 物化预处理 生化系统稳定性 集中处理 中图分类号： X703.1 文献标识码： A Central treatment of wastewater with high organic content from different industrial sources: classification, pretreatment and design Zhang Weijun1 Gao Ya2 Ma Shilong3 Zhang Ming3 Wang dongsheng1* Xu Yueyang4 (1. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085; 2. School?of?Environmental?and?Municipal?Engineering?Xian?University?of?Architecture?and?Technology, Xian 710055; 3. School of Resources and Environmental Science, East China Normal University, Shanghai 200062; 4. Shanghai Jihui Environmental Protection Technology Development Co. Ltd., Shanghai 200000) Abstract: In this study, high content organic wastewaters from different industrial sources were classified as waste emulsions with high suspended solid concentration, biorefractory wastewaters with high organic loading, high suspended solid organic wastewater without oil, organic wastewater containing chromium, emulsions with low suspended solid content which were treated by using acidification demulsification/Fenton oxidation/ coagulation/flocculation, Fenton oxidation/ coagulation/flocculation, coagulation/flocculation, reduction/ coagulation/flocculation, vibrating membrane respectively. Performance of pretreatment was investigated in both laboratory experiments and full scale application. Results indicated that