城市污水处理中不同活性污泥法设计和运行效果的对比分析
2024-05-21吴小丽毕红伟
吴小丽 毕红伟
摘要:本文对城市污水处理中的不同活性污泥法进行了设计和运行效果的对比分析。通过比较生物脱氮除磷工艺、序批式活性污泥法、生物吸附氧化法和氧化沟工艺,发现它们在处理效率、运行稳定性、抗冲击能力和经济性方面存在差异。进一步分析了影响活性污泥法运行效果的因素,如进水水质、曝气方式、污泥龄和温度。本文的研究结果对于优化活性污泥法的设计和运行具有重要意义,有助于提高城市污水处理的效率和可持续发展。
关键词:活性污泥法 A2/O工艺 SBR工艺 氧化沟工艺
中图分类号:TV505
Comparative Analysis of the Design and Operation Effect of Different Activated Sludge Processes in Urban Wastewater Treatment
WU Xiaoli1 BI Hongwei 2
1.Kunming Vocational and Technical College of Industry; 2.Yunnan Tilang Energy-Saving and Environmental Protection Group Co., Ltd., Kunming, Yunnan Province, 650302 China
Abstract: This paper presents a comparative analysis of the design and operation effect of different activated sludge processes in urban wastewater treatment. By comparing the biological nitrogen and phosphorus removal process, sequencing batch reactor, biosorption oxidation process and oxidation ditch process, this paper finds their differences in treatment efficiency, operational stability, impact resistance and economy, and further analyzes factors influencing the operation effect of activated sludge processes, such as influent water quality, the aeration mode, the sludge age and temperature. The research findings of this paper are of significant importance for optimizing the design and operation of activated sludge precesses, and are helpful to the improvement of efficiency and sustainable development of urban wastewater treatment.
Key Words: Activated sludge process; A2/O process; SBR process; Oxidation ditch process
活性污泥法是一種常用的废水处理技术,具有高效、节能和环保等优点。不同的活性污泥法在处理废水时存在差异,因此需要进行比较和分析。通过不断的研究和实践,我们可以进一步改进和完善活性污泥法,以满足不同废水处理需求。
1不同活性污泥法的特点
1.1 A2/O工艺
A2/O工艺是一种常用的活性污泥法,A2/O工艺代表着(厌氧、缺氧、好氧)的处理过程。该工艺流程是污水经过预处理以后进入厌氧区,厌氧区出水与好氧池回流的混合液汇合进入缺氧区,缺氧区的反应结束后进入好氧区,好氧区出水进入二沉池实现泥水分离,一部分污泥回流进入厌氧区的前端,剩下一部分污泥排入污泥处理系统,污水则继续进入后续处理工艺。A2/O工艺能够实现有机物的降解,同时完成脱氮和除磷的功能。
在A2/O工艺中,废水首先进入厌氧区(溶解氧……
