Hu Kai, Zhao Qing L, Chen Wei, Wang Wei, Han Feng, Shen Xing H
a Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment , Hohai University , Nanjing , People's Republic of China.
b Hohai University, College of Environment , Nanjing , People's Republic of China.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2018;53(14):1207-1220. doi: 10.1080/10934529.2018.1528032. Epub 2019 Jan 9.
Upgrading existing wastewater treatment plants (WWTPs) is a more challenging task than constructing new plants. The aim is usually to overcome overloading and to reduce pollution concentrations in the effluent. There are various methods that can be used to upgrade WWTPs. This article reviews some of the methodologies, such as inserting new tanks as additional treatment steps and modifying the WWTP by introducing new technologies. A number of effective technologies are reviewed in terms of their basic concepts, operational conditions, and treatment performances. Examples of WWTPs in China that have been successfully upgraded using these technologies are also highlighted.
升级现有的污水处理厂比建设新厂更具挑战性。其目的通常是克服过载问题并降低出水的污染浓度。有多种方法可用于升级污水处理厂。本文回顾了一些方法，例如增加新的处理步骤插入新的水池以及通过引入新技术来改造污水处理厂。从一些有效技术的基本概念、运行条件和处理性能方面进行了综述。还重点介绍了中国使用这些技术成功升级的污水处理厂实例。
