The leachate treatment by nanofiltration (NF) process has received much attention over the last two decades. Previous studies focused on the investigation of the technical feasibility of NF. However, there are a limited number of works that examined leachate treatment costs. On the other hand, in a landfill management system, the economic component is an imperative factor for the decisions of all operations. Thereby, this work aimed to investigate the technical feasibility and economic parameters involved in a full-scale NF plant for the treatment of leachate previously treated by the physicochemical process. The average quality of the pre-treated leachate was 2258 ± 230 mg L⁻¹ chemical oxygen demand (COD) and 821 ± 86 mg L⁻¹ humic substances (HS). NF was performed using a bench-scale filtration module with commercial polymeric membranes SR100 and NP030. At the end of each filtration, a cleaning protocol was applied to recover the initial membrane permeability. The concentration of recalcitrant compounds, expressed as HS, was reduced to 84 ± 8 mg L⁻¹ in the permeate, and COD complies with the wastewater discharge standards imposed by local legislation. The capital costs for a full-scale NF was estimated at MUS$ 0.772, and specific total cost, treated leachate per volume unit, has been estimated at US$ 8.26 m⁻³.

在过去的二十年中，通过纳滤（NF）工艺处理渗滤液受到了广泛的关注。先前的研究集中于对NF技术可行性的调查。但是，检查渗滤液处理成本的工作数量有限。另一方面，在垃圾掩埋管理系统中，经济因素是所有运营决策的必要因素。因此，这项工作旨在研究全尺寸NF工厂用于处理之前通过物理化学过程处理过的渗滤液的技术可行性和经济参数。预处理渗滤液的平均质量为2258±230 mg L ^-1化学需氧量（COD）和821±86 mg L ^-1腐殖质（HS）。使用具有商用聚合物膜SR100和NP030的台式过滤模块进行NF。每次过滤结束时，都要执行清洁程序以恢复初始的膜渗透性。顽固性化合物的浓度（以HS表示）降低至渗透液中的84±8 mg L ^-1，并且COD符合当地法规规定的废水排放标准。一个全尺寸核废料的资本成本估计为0.772美元，每单位体积处理渗滤液的特定总成本估计为826万美元^-3。