Abstract

In this study, a novel biological oxidation-settling tank (BOST) was designed to treat micro-polluted water. The new technology is based on the designing concepts of rotating biological contactor and horizontal flow settling tank. The pollutant removal performances of the BOST were systemically evaluated under varied organic loading rate (OLR), hydraulic retention time (HRT), and disc rotation speed. The microbial characteristics and the removal mechanism of pollutants were also illustrated. The findings demonstrated the advantages of BOST in achieving a simultaneous removal of suspended solids (SS), organic compounds and ammonium in a short HRT, which means that the treatment unit requires a small footprint and it can decrease the DBPs formation potential by dramatically reducing the dissolved organic compounds.

在这项研究中，我们设计了一种新型的生物氧化沉降池(BOST)用于处理微污染水。这项新工艺是基于旋转生物接触器和水平流沉降池的理念设计而成的，对不同有机负荷率，水力停留时间和圆盘转速的条件下，BOST对污染物去除性能进行了系统评估测试，阐明了微生物的特性和污染物的去除机理。结果表明，BOST的优势在于可以在较短的水力停留时间内，同时去除悬浮固体（SS），有机化合物和铵，这意味着处理单元所需的空间很小，而且可以通过显著减少溶解性有机污染物来降低DBPs形成风险。

Speaker Bio

Wendong Wang, PhD, Professor/Doctoral supervisor, who is a visiting scholar at Pennsylvania State University, the registered environmental protection engineer, the registered utility engineer (water supply & drainage), a member of Shaanxi province youth science and technology new star, the chief engineer of Shaanxi small and medium enterprises, a member of International Water Association China Youth Committee (IWA WYP-China), and the leader of the team “Sewage Treatment and Resource Utilization” at Xi’an Jiaotong University. His main research area is micro-polluted water purification and quality assurance and has accomplished substantial contribution in the innovative development of micro-polluted water purification materials and equipment, as well as pollutants transfer and transformation characteristics during water purification and distribution processes. Dr. Wang hosts more than ten national and provincial research projects including those funded by the National Water Pollution Control and Treatment Major Project, and Natural Science Foundation of China (NSFC), with research funding approximately 18,000,000 RMB. Based on the research work, he and his team members have published over 100 articles, of which more than 40 are in SCI-indexed journals. In addition, he has published 5 textbooks as editor-in-chief or co-editor, and authorized 15 national invention patents.

王文东，博士，教授/博士生导师。美国宾州州立大学首府学院访问学者，国家勘察设计行业注册环境保护工程师、注册公用设备工程师（给水排水）、陕西省青年科技新星、陕西省中小企业首席工程师国际水协会中国青年委员会委员、中国医学装备协会医院建筑与装备分会医院水系统研究中心副主任、秦岭保护委员会咨询专家、西安交通大学“污水处理与资源化利用”团队带头人。多年从事微污染水强化净化与水质安全保障领域的研究，在微污染水净化材料与设备研发，以及污染物在水质净化和输配过程中的转移转化规律等方面取得了有影响力的成果。先后主持包括国家重大水专项和国家自然科学基金在内的国家级和省部级科研项目10余项；发表学术论文100余篇，其中SCI期刊收录论文40余篇。主编/参编著作5部，已授权国家发明专利15项。