低温下移动床生物膜反应器系统工艺运行与应用研究进展

关键词移动床生物膜反应器；低温；微生物活性；载体强化；工艺改良中图分类号X703 文献标识码A 文章编号 1007-7731（2025）15-0114-05DOI号 10.16377/j.cnki.issn1007-7731.2025.15.027

Research progress on process operation and application of moving bed biofilm reactorsystem atlowtemperature

WU Tianqi 1，2，3 KONG Yu1LING Hong1CHANG Wenjie1ZHU Xiaoxiao1NIE Huijun 1

（1Jiangsu Environmental Engineering Technology Co.，Ltd.，Nanjing 21oo19， China; ²Jiangsu Environmental Protection Group Co.，Ltd.， Nanjing 21Oo36， China; 3Jiangsu Province Engineering Research Center of Synergistic Control of Pollution and Carbon Emissions in Key Industries，Nanjing 210019， China）

AbstractThe research onthe operation and application of the moving bed biofilm reactor （MBBR）process system underlow temperatureconditionswas systematicallyelaborated from theaspectsof microbial community，carrier enhancement technology，and process combinationandregulation.Low temperaturewas found toinhibittheactivityof nitrifying bacteria，affcting the nitrogen removal eficiency of wastewater treatment.The MBBR systemwas demonstrated to enrich nitrifying bacteria through biofilm formation.Cold-adaptedmicrobial acclimation technology wasshown toenhance microbialactivityunder low temperatureconditions，effectively improving the operational effciency and stabilityof thissystem.Theselection of cariers was proven to influence processperformance.Magnetic cariers，hydrophilicmodifications，and porous structures （e.g.，PVA gel） were found to enhance biofilm formation， increase the enrichment of nitrifying bacteria，and improve the treatment efficiencyof low temperature wastewater. Optimizationof the MBBR process requiredregulationof aeration，carbon-to-nitrogen ratio （C/N），and hydraulic retention time （HRT）.Under low temperatures，intermitent aeration，low C/N，and extended HRT wereshown to enhance nitrification eficiency.Process combinations such as A/O-MBBR were demonstrated to strengthen the system's resistance to shock loads.This study provides a reference for further research and application of the MBBR process.

eywordsmoving bed biofilm reactor;low temperature; microbial activity; carier enhancement; process improvel

移动床生物膜反应器（MBBR）工艺是现阶段应用较多的生物膜废水处理技术之一[1-2]。（剩余8544字）