Department of Chemical Engineering, Karaj College of Environment, Alborz, Iran.
Department of Chemical Engineering, Abadan Faculty of Petroleum, Petroleum University of Technology, Abadan, Iran.
J Environ Manage. 2021 Apr 15;284:111993. doi: 10.1016/j.jenvman.2021.111993. Epub 2021 Feb 2.
Wastewater management is a significant challenge, especially for arid and semiarid countries due to the water scarcity crisis. Considering human health, environmental regulations, wastewater treatment plant expenses, and water reusability, this study aims to assist in designing an efficient and economical WWTP. Technical and economic simulation and modeling are important for designing, constructing, and predicting the requirements of wastewater treatment plant designs. Simulation of a project before its implementation, in the first place, reduces additional costs, and from another point of view, a project is examined and researched from different aspects. In this study, three wastewater treatment plants based on conventional activated sludge, contact stabilization, and step aeration were simulated and evaluated technically and economically using the Zargandeh treatment plant data in Tehran. In three scenarios, GPS-X software investigated the effect of raw wastewater variations between their minimum and maximum intervals on effluent quality, and because the range of inlet effluent was different, more precise results were obtained. Then, the economic costs of the project, including implementation, maintenance, and also energy use, were calculated by Capdetwork software, and contact stabilization was found to be more cost-effective.
污水处理是一个重大的挑战，特别是对于干旱和半干旱国家来说，因为它们面临着水资源短缺危机。考虑到人类健康、环境法规、污水处理厂的费用以及水的再利用，本研究旨在协助设计一个高效且经济的污水处理厂。技术和经济模拟和建模对于设计、构建和预测污水处理厂设计的要求非常重要。在实施项目之前对其进行模拟，首先可以降低额外成本，从另一个角度来看，可以从不同方面对项目进行检查和研究。在本研究中，使用德黑兰 Zargandeh 处理厂的数据，通过 GPS-X 软件对基于传统活性污泥法、接触稳定法和分步曝气法的三个污水处理厂进行了技术和经济模拟和评估。在三种情况下，GPS-X 软件研究了原废水在其最小和最大间隔之间变化对出水质量的影响，由于入口废水的范围不同，因此获得了更精确的结果。然后，通过 Capdetwork 软件计算了项目的经济成本，包括实施、维护和能源使用成本，结果表明接触稳定法更具成本效益。
