Water scarcity in Jordan is becoming more severe with time, which resulted in an indispensable need for economic innovative approaches to maximize the utilization of nonconventional water resources through reuse options. Within the framework of the current study, a novel vertical flow constructed wetland system was implemented for greywater treatment in four different rural areas in Jordan. In this paper, the primary objective was to develop a regression-based nonlinear model to predict BOD effluent concentration from the proposed system. The model obeyed the first-order kinetics and found to provide an efficient tool in predicting the effluent BOD value as exemplified by an R2 of 0.78. Moreover, a cost analysis was carried out to verify the feasibility of the proposed system. The economic results revealed a NPV range of 295–1209 JOD (420–1730$), IRR range of 6–10.7%, and a payback period range of 8.8–15.5 years. The average calculated costs of greywater treatment using the VFCWs were found to be 0.391 (USD/m3 treated) and 0.672 (USD/kg BOD removed). Finally, the energy saving from using the proposed system was quantified and an estimate of 70 JOD (100$)/year household was obtained.

中文翻译：

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利用新型垂直流人工湿地处理约旦农村地区中水的建模与经济分析

随着时间的推移，约旦的水资源短缺变得越来越严重，这导致对经济创新方法的不可或缺的需求，以通过再利用选项最大限度地利用非常规水资源。在当前研究的框架内，在约旦四个不同的农村地区实施了一种新型的垂直流人工湿地系统，用于灰水处理。在本文中，主要目标是开发一个基于回归的非线性模型来预测所提议系统的 BOD 流出物浓度。该模型遵循一级动力学，并发现它提供了一种有效的工具来预测流出物 BOD 值，例如 R2 为 0.78。此外，还进行了成本分析，以验证所提出系统的可行性。经济结果显示 NPV 范围为 295-1209 JOD（420-1730 美元），IRR 范围为 6-10.7%，投资回收期范围为 8.8-15.5 年。发现使用 VFCW 处理中水的平均计算成本为 0.391（美元/立方米处理）和 0.672（美元/公斤 BOD 去除）。最后，对使用建议系统的节能进行了量化，并获得了 70 JOD（100 美元）/年家庭的估计值。