LIYi-long,BAOYu,DIWen-zheng,et al.Design of Step-feed Multi-stage AO+MBR Process under High Discharge Standard[J].China Water & Wastewater,2022,38(4):76-81.
高排放标准下分段进水多级AO+MBR工艺的设计
- Title:
- Design of Step-feed Multi-stage AO+MBR Process under High Discharge Standard
- Keywords:
- step-feed multi-stage AO; MBR; reclaimed water plant; high discharge standard; ozone catalytic oxidation
- 摘要:
- 北京某再生水厂原设计规模4.5×104 m3/d，需迁址新建，并扩容至一期设计规模6.5×104 m3/d，总规模10×104 m3/d。出水标准由《城镇污水处理厂污染物排放标准》（GB 18918—2002）中的一级A标准，提高至北京地标《城镇污水处理厂水污染物排放标准》（DB 11/890—2012）中的A标准（准Ⅲ类标准）。通过污染物指标分析和工艺方案比选，确定采用预处理+分段进水多级AO+MBR+臭氧催化氧化工艺，实际试运行出水水质稳定达标。采用分段进水多级AO方式，灵活分配进水碳源，强化内源反硝化加强TN去除效果，实际运行在进水超标的工况下通过投加外部碳源使出水TN保持在10 mg/L以下。另外，生物池和膜池膜组件采用精确曝气和脉冲曝气系统，试运行期间有效节约能耗约10%。
- Abstract:
- The original design scale of a reclaimed water plant in Beijing is 4.5×104 m3/d. The plant was newly built in other place and expanded to the design scale of 6.5×104 m3/d in the phase Ⅰ project (the total scale is 10×104 m3/d), and the discharge standard was upgraded from the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) to level A criteria (quasi?class Ⅲ standard) specified in a local standard of Beijing Discharge Standard of Water Pollutants for Municipal Wastewater Treatment Plants (DB 11/890-2012). Through analysis of the pollutant indicators and comparison of the process scheme, the process of pretreatment, step-feed multi-stage AO process, MBR and ozone catalytic oxidation was selected. The trial operation indicated that the effluent quality stably met the discharge standard. The step?feed multi?stage AO process flexibly allocated the carbon sources in the influent and improved the endogenous denitrification to enhance TN removal performance. When the influent quality exceeded the standard in actual operation, TN in the effluent still remained below 10 mg/L by adding external carbon source. In addition, precise aeration and pulse aeration systems were applied to the biological tank and membrane tank, which effectively saved energy consumption by approximately 10% during trial operation.
相似文献/References:
[1]毛宇洛,石文鹏.江西某厂网一体化项目污水厂调试运行实例[J].中国给水排水,2022,38(4):12.
MAO Yu-luo,SHI Wen-peng.A Practical Example of Commissioning and Operation of a Wastewater Treatment Plant in a Plant?Network Integration Project in Jiangxi[J].China Water & Wastewater,2022,38(4):12.
[2]李志超,肖宁,林蔓,等.MBBR耦合MBR用于东北某低温高排放标准污水厂[J].中国给水排水,2022,38(14):77.
LIZhi-chao,XIAONing,LINMan,et al.Application of MBBR Coupled with MBR Process in a Stringent Discharge Standard Wastewater Treatment Plant in Northeast China at Low Temperature[J].China Water & Wastewater,2022,38(4):77.
[3]黄珠慧,朱艳臣,王久龙,等.混凝+两级A/O+MBR工艺处理粪便滤后液[J].中国给水排水,2022,38(24):115.
HUANGZhu-hui,ZHUYan-chen,WANGJiu-long,et al.Treatment of Fecal Filtrate by a Combined Process of Coagulation, Two-stage A/O and MBR[J].China Water & Wastewater,2022,38(4):115.
[4]王凤雪,张新波,尚禹彤,等.MBBR—MBR对磺胺嘧啶的去除及膜污染特性[J].中国给水排水,2023,39(1):80.
WANGFeng-xue,ZHANGXin-bo,SHANGYu-tong,et al.MBBR-MBR System for Removal of Sulfadiazine and Its Membrane Fouling Characteristics[J].China Water & Wastewater,2023,39(4):80.
[5]刘浩,臧海龙,耿安锋,等.青岛李村河污水处理厂类Ⅳ类标准提标扩建工程设计[J].中国给水排水,2023,39(2):52.
LIUHao,ZANGHai-long,GENGAn-feng,et al.Design of Quasi Class Ⅳ Discharge Standard Upgrading and Expansion Project in Qingdao Licunhe Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(4):52.
[6]田海成,杨红红,焦文海,等.AAO+MBR组合工艺各工段设计要点[J].中国给水排水,2023,39(6):71.
TIANHai-cheng,YANGHong-hong,JIAOWen-hai,et al.Key Points for Each Section Design of AAO and MBR Combined Process[J].China Water & Wastewater,2023,39(4):71.
[7]刘强,张磊.UASB+两级AO+MBR工艺处理高浓度原料药废水[J].中国给水排水,2023,39(10):139.
LIUQiang,ZHANG Lei.Engineering Design of UASB, Two-stage AO, and MBR Process for Treating High Concentration API Wastewater[J].China Water & Wastewater,2023,39(4):139.
[8]黄青,杨平,杨忠启,等.MBBR和MBR工艺的污水处理效果与碳排放分析[J].中国给水排水,2023,39(16):99.
HUANGQing,YANGPing,YANGZhong-qi,et al.Analysis on the Engineering Effect and Carbon Emission of MBBR and MBR Processes for Treating Sewage[J].China Water & Wastewater,2023,39(4):99.