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Itecons - Institute for Research and Technological Development in Construction, Energy, Environment and Sustainability, Pedro Hispano Avenue s/n, 3030-289, Coimbra, Portugal.
J Environ Manage. 2020 Dec 15;276:111353. doi: 10.1016/j.jenvman.2020.111353. Epub 2020 Sep 12.
This paper combines solar photovoltaic (PV) to wastewater treatment plants (WWTPs). A new methodology is proposed to design solar PV to reduce energy consumptions of aeration thanks in WWTPs. New analytical equations and parameters, based on the air temperatures, solar irradiations, biological kinetics, dissolved oxygens, mechanical oxygenations, are introduced to obtain the peak power of PV that maximize the auto-consumptions of aeration blowers installed in the oxidation tanks of WWTPs. The method allows a direct preliminary design and a calibrated estimation for energy power. To justify this method, three aspect are mainly discussed: (i) the oxidation tanks consume up to 30% of the energy of a WWTP; (ii) the temperature of wastewater is variable during the year, in the smaller WWTPs; (iii) the dissolved oxygen reduces, increasing temperature of wastewater. This methodology will support the sector in making decision over PV investments, helping wastewater utilities to consider sustainable management practices. Therefore, a further contribute to develop the integration of renewable energy sources combined with wastewater sectors is activated.
本文将太阳能光伏（PV）与废水处理厂（WWTP）相结合。提出了一种新的方法来设计太阳能光伏，以减少 WWTP 中曝气的能源消耗。新的分析方程和参数，基于空气温度、太阳辐射、生物动力学、溶解氧、机械充氧，用于获得最大程度地满足 WWTP 氧化池中安装的曝气鼓风机自消耗的 PV 峰值功率。该方法允许直接进行初步设计和能量功率的校准估计。为了验证这种方法，主要讨论了三个方面：（i）氧化池消耗 WWTP 能量的 30%；（ii）在较小的 WWTP 中，废水中的温度在一年中是可变的；（iii）溶解氧减少，废水温度升高。该方法将为该行业的 PV 投资决策提供支持，帮助废水处理公司考虑可持续管理实践。因此，进一步促进了可再生能源与废水处理行业的整合。
