Process comparison and operation effect analysis of upgrading urban sewage treatment plant
城市污水处理厂提标改造工艺比选及运行效果分析

摘要

城市污水处理厂提标改造是应对水质标准提升和环境压力加剧的关键举措。本文深入探讨了提标改造的工艺比选，分析了活性污泥法、厌氧-好氧处理工艺、延扩式活性污泥法及膜生物反应器（MBR）等工艺的运行效果。通过对比不同工艺的出水水质、处理效率、运行成本及运维复杂度，揭示了各工艺的优缺点及适用场景。研究强调了工艺选择需结合污水厂实际情况，确保高效、经济、稳定运行，为城市污水处理厂的提标改造提供了科学指导。

Abstract

The upgrade and renovation of urban wastewater treatment plants is a critical measure to address the increasing water quality standards and environmental pressures. This paper delves into the process comparison for upgrades, analyzing the operational effectiveness of activated sludge methods, anaerobic-aerobic processes, extended activated sludge methods, and membrane bioreactors (MBRs). By comparing the effluent quality, treatment efficiency, operating costs, and maintenance complexity of different processes, it reveals the advantages and disadvantages of each process as well as their applicable scenarios. The study emphasizes that process selection should be based on the actual conditions of the wastewater treatment plant to ensure efficient, economical, and stable operation, providing scientific guidance for the upgrade and renovation of urban wastewater treatment plants.