A Large-Scale Plant in Treating Young Landfill Leachate: Focusing on the Application of Dopamine Modified Ceramic Membrane Smbr and Change of Nitrifying and Denitrifying Bacteria

作     者：Wang, Cong Wu, Hanyang Han, Runlin Zhang, Shujun Ni, Shou-Qing Li, Weicheng Qi, Weikang Peng, Yongzhen 

作者机构：National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology Beijing University of Technology Beijing100124 China Jiangxi Bocent Advanced Ceramic Environmental Technology Co. Ltd Jiangxi Province Pingxiang337000 China School of Chemistry and Chemical Engineering Jinggangshan University Ji'an343009 China Beijing Drainage Group Co. Ltd. Beijing100044 China Shandong Key Laboratory of Environmental Processes and Health Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and Engineering Shandong University Shandong Qingdao266237 China 

出 版 物：《SSRN》 

年 卷 期：2024年

核心收录：

主　　题：Ammonia 

摘      要：A combined DAF-UASB-A/O system plus ceramic membrane submerged MBR (SMBR) was conducted in treating young landfill leachate with a capacity of 300 m3 /day. The degradation efficiency in biological unit and membrane filtration within 185 days of operation was investigated partly for the pollutant’s abatement and partly for high quality of permeate for UF/RO treatment as final tertiary treatment. A substantial reduced number of COD (96.8%), ammonia (83.4%) and TN (79.6%) was gained via DAF-UASB -A/O system. The dopamine modified ceramic membrane can enable SMBR to operate average 28 LMH because of good surface hydrophilicity. The dopamine modified ceramic membrane SMBR was fouling-free MBRs because immersed chemical cleaning can recover the filterability of ceramic membrane. Interestingly, enrichment of some species with the prolong of the successive anaerobic-anoxic-aerobic treatment system was companied with severe or slight suppression of other species via comparative study in sludge Day-1 and Day-185, respectively. Regarding the nitrifying and denitrifying microorganisms, simultaneous methanogensis and denitrification (SMD) process can be confirmed in the UASB because of the Thauera identified. The presence of Planctomycetes suggested anaerobic ammonium oxidation (ANAMMOX) process happened in the A/O tank. © 2024, The Authors. All rights reserved.