WANG Tuo,YAN Bing.Application of Multi-stage A/O Process Collaborative Precise Control System in Wastewater Treatment Plant with Low C/N Influent[J].China Water & Wastewater,2021,37(12):65-69.
多级A/O工艺协同精确控制系统用于低C/N进水污水厂
- Title:
- Application of Multi-stage A/O Process Collaborative Precise Control System in Wastewater Treatment Plant with Low C/N Influent
- Keywords:
- biological nitrogen removal; multi-stage A/O; low C/N
- 摘要:
- 某市政污水处理厂整体搬迁项目总处理规模为25×104 m3/d，设计采用预处理（含初沉池）+多级A/O生物池+辐流式二沉池+高效澄清池+V型滤池+臭氧催化氧化+次氯酸钠消毒工艺流程。出水需达到地表水类Ⅳ类标准。针对进水BOD5低、TN高的水质特点，设计采用分段进水多级A/O池型作为二级处理核心工艺，充分利用原水中BOD5，尽量降低对外加碳源的需求。采用协同精确曝气系统和精确投加碳源系统，实现了污水厂智慧运行，进一步降低了运营成本。与原污水厂对比，可节省直接运行费用约0.39元/m3。
- Abstract:
- The total treatment capacity of a municipal wastewater treatment plant after overall relocation is 25×104 m3/d. The process is designed to be “pretreatment (including primary sedimentation tank), multistage A/O biological tank, radial flow secondary sedimentation tank, high-efficiency clarifier tank, V-shaped filter, ozone catalytic oxidation and sodium hypochlorite disinfection”, and the effluent quality was required to meet quasi-Ⅳ surface water standards. In view of low BOD5 and high TN of the influent quality, the step-feed multi-stage A/O tank was designed as the core process of the secondary treatment, which could make full use of BOD5 in the raw water and reduce the demand for external carbon source as far as possible. The intelligent operation of the wastewater treatment plant was realized by adopting the collaborative precise aeration system and the precise carbon source adding system, which further reduced the operational cost. Compared with the original sewage treatment plant, the direct operational cost can be reduced by about 0.39 yuan/m3 after relocation.
相似文献/References:
[1]郭莉芳,朱宇峰,滕良方,等.MBBR用于南方某污水厂强化脱氮效果分析[J].中国给水排水,2020,36(7):101.
[2]田敏,崔涛,吕恺,等.西安市第四污水处理厂A2/O工艺的脱氮性能评价[J].中国给水排水,2020,36(13):1.
TIAN Min,CUI Tao,LU Kai,et al. Denitrification Performance Evaluation of A2/O Process in Xi’an Fourth Wastewater Treatment Plant [J].China Water & Wastewater,2020,36(12):1.
[3]吴彦成,顾鑫,朱继涛,等.铁氨氧化污水生物脱氮技术的研究进展[J].中国给水排水,2020,36(18):38.
WU Yan-cheng,GU Xin,ZHU Ji-tao,et al.Research Advances of Biological Nitrogen Removal from Wastewater via Fe(Ⅲ) Reduction Coupled to Anaerobic Ammonium Oxidation (Feammox) Process[J].China Water & Wastewater,2020,36(12):38.
[4]黄子洪,向婷,方华,等.分步进水SBR工艺生物脱氮运行条件优化及数学模拟[J].中国给水排水,2020,36(23):89.
HUANG Zi-hong,XIANG Ting,FANG Hua,et al.Operational Condition Optimization and Mathematical Simulation of Biological Denitrification in Step-feed SBR Process[J].China Water & Wastewater,2020,36(12):89.
[5]王朝朝,张欢,闫立娜,等.高盐度冲击后厌氧氨氧化工艺恢复及运行特性[J].中国给水排水,2021,37(3):16.
WANG Zhao-zhao,ZHANG Huan,YAN Li-na,et al.Recovery and Operational Characteristics of Anammox Process after High Salinity Shock[J].China Water & Wastewater,2021,37(12):16.
[6]冯红利,赵梦月,丁舒喆.城市污水厂A2/O工艺生物脱氮过程优化控制[J].中国给水排水,2021,37(6):102.
FENG Hong-li,ZHAO Meng-yue,DING Shu-zhe.Optimal Control of Biological Nitrogen Removal in A2/O Process of WWTP[J].China Water & Wastewater,2021,37(12):102.
[7]陈浩林,彭轶,安东,等.分段进水多级A/O工艺污泥膨胀控制专家系统[J].中国给水排水,2021,37(8):153.
CHEN Hao-lin,PENG Yi,AN Dong,et al.Expert System for Sludge Bulking Control in Multi-stage A/O Process[J].China Water & Wastewater,2021,37(12):153.
[8]付昆明,傅思博,仇付国.不同生物脱氮路径下氧气、碳源等需求理论分析[J].中国给水排水,2021,37(10):8.
FU Kun-ming,FU Si-bo,QIU Fu-guo.Theoretical Analysis of Oxygen and Carbon Source Demand under Different Biological Nitrogen Removal Pathways[J].China Water & Wastewater,2021,37(12):8.
[9]周小琳,樊星,毕学军,等.两段式A/O-MBBR工艺生物脱氮中试与系统优化[J].中国给水排水,2021,37(19):72.
ZHOU Xiao-lin,FAN Xing,BI Xue-jun,et al.Pilot-scale Test and System Optimization of Two-stage A/O-MBBR Process for Biological Nitrogen Removal[J].China Water & Wastewater,2021,37(12):72.
[10]陈浩林,彭轶,安东,等.分段进水多级A/O工艺污泥膨胀的诊断与调控[J].中国给水排水,2021,37(20):92.
CHEN Hao-lin,PENG Yi,AN Dong,et al.Diagnosis and Control of Sludge Bulking in Step-feed Multi-stage A/O Process[J].China Water & Wastewater,2021,37(12):92.