In the present study, area-based pollutant removal kinetic analysis was considered using the zero-order, first-order decay and efficiency loss (EL) models in the constructed wetlands (CWs) for municipal wastewater treatment. Except for SO₄²⁻ elimination, overall higher average pollutant removal performance was found in the CWs with gravel media only (P-CWs). The lowest value of 6.47 ± 4.72 of the efficiency loss co-efficient indicated the highest performance with a minimum discharge concentration of 0.54 ± 0.24 mg L⁻¹ of TN (84.70% removal) in the CWs integrated with iron scraps and granular activated carbon (ISs + GAC-CWs). The lowest level to 0.903 ± 0.89 of the model's predicted value (C_t-ISs) also confirmed the relatively higher average removal efficiency of 63.37% of nitrate with narrower discharge distribution in the ISs–GAC-CWs. The factors affecting pollutant removal in the CWs and trends of the reactions of the multipollutants were interpreted by using the kinetic modeling analysis. The results confirmed that VF-CWs, an ecotechnology, should be considered as an alternative to the conventional treatment methods of municipal wastewater for small communities, which is a sustainable solution.

中文翻译：

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人工湿地中多污染物去除的基于区域的形态动力学分析，以提高处理效率

在本研究中，在人工湿地（CW）中使用零阶，一阶衰减和效率损失（EL）模型考虑了基于区域的污染物去除动力学分析，用于市政废水处理。除了消除SO ₄ ^2-以外，仅使用砾石介质的CW（P-CW）的总体平均污染物去除性能更高。效率损耗系数的最小值6.47±4.72表示最高性能，在与铁屑和颗粒状活性炭（C）集成的CW中，最小排放浓度为0.54±0.24 mg L ^-1的TN（去除84.70％）。 ISs + GAC-CWs）。最低值至模型预测值的0.903±0.89（C _t-ISs）还证实了ISs-GAC-CWs中硝酸盐的平均去除效率较高，为63.37％，排放分布较窄。通过动力学模型分析，解释了在连续波中影响污染物去除的因素和多种污染物反应的趋势。结果证实，VF-CWs是一种生态技术，应被视为小规模社区污水常规处理方法的替代方案，这是一种可持续的解决方案。