UV/O_(3)-BAC实现海藻生产废水深度净化的技术验证  

Technical Verification of UV/O_(3)-BAC for Advanced Purification of Seaweed Production Wastewater

作　　者：沈古体 王爱杰[1,2,3] 韩京龙 张建 高晓杰 SHEN Guti;WANG Aijie;HAN Jinglong;ZHANG Jian;GAO Xiaojie(Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China;Harbin University of Technology(Shenzhen),Shenzhen 518055,China;Beijing Jingshengda Ultraviolet Technology Center,Beijing 101100,China)

机构地区：[1]中国科学院生态环境研究中心,北京100085 [2]中国科学院大学,北京100049 [3]哈尔滨工业大学(深圳),广东深圳518055 [4]北京景盛达紫外线技术中心,北京101100

出　　处：《水处理技术》2023年第11期117-122,127,共7页Technology of Water Treatment

基　　金：国家自然科学基金项目(52270067)。

摘　　要：将UV/O_(3)-BAC应用于含海藻生产企业废水的污水深度净化过程,进一步降低其化学需氧量(COD)、粪大肠菌(FCB)等常规水质指标,以达到地方的排放要求。研究了UV/O_(3)-BAC和UV/O_(3)/H_(2)O_(2)-BAC两种组合工艺在污水处理厂深度净化过程中的实际应用效果。UV/O_(3)/H_(2)O_(2)-BAC比UV/O_(3)-BAC有更好的COD去除效果,其COD去除率最高可以达到71.09%。分析了污染物在每个处理工艺段的具体去除情况,发现COD主要在生物活性炭工艺段被去除,而高级氧化技术(AOPs)的主要作用是破坏了有机物的难降解结构。研究了H_(2)O_(2)的投加浓度、O_(3)的投加浓度和废水的水力停留时间(HRT)对处理效果的影响,当进水COD为21.1 mg/L时,O_(3)和H_(2)O_(2)的最优投加浓度分别为10、5 mg/L。The UV/O_(3)-BAC is applied to the deep purification process of sewage containing seaweed production wastewater,which further reduces COD,FCB and other conventional water quality indicators to meet the local discharge requirements.The practical application effect of two combined processes of UV/O_(3)-BAC and UV/O_(3)/H_(2)O_(2)-BAC in the deep purification process ofsewage treatment plant was studied.UV/O_(3)/H_(2)O_(2)-BAC has better COD removal effect than UV/O_(3)-BAC,and the highest COD removal rate can reach 71.09%.The specific removal of pollutants in each treatment process section was analyzed.It was found that COD was mainly removed in the biological activated carbon process section,while the main role of advanced oxidation technologies(AOPs)was to destroy the refractory structure of organic substances.The effects of H_(2)O_(2)concentration,O_(3)concentration and HRT of wastewater on the treatment effect were studied.When the COD concentration in the influent water was 21.1 mg/L,the optimal dosage concentrations of O_(3)and H_(2)O_(2)were 10,5 mg/L,respectively.

关 键 词：高级氧化技术 化学需氧量 污水处理厂 生物活性炭 海藻生产废水 

分 类 号：TU991[建筑科学—市政工程]