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Nanofiltration applied to the landfill leachate treatment and preliminary cost estimation

机译：纳滤涂适用于垃圾渗滤液处理和初步成本估算

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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 ± 8mg 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 MUSS 0.772, and specific total cost, treated leachate per volume unit, has been estimated at US$ 8.26m~(-3).
机译：纳滤（NF）过程的渗滤液治疗在过去二十年中受到了很多关注。以前的研究侧重于调查NF的技术可行性。然而，有有限数量的作品，用于检查渗滤液治疗成本。另一方面，在垃圾填埋场管理系统中，经济部件是所有操作决策的必要因素。因此，这项工作旨在探讨用于治疗方法的渗滤液中涉及的技术可行性和经济参数，用于治疗原因是由物理化学过程治疗的渗滤液。预处理的渗滤液的平均质量为2258±230 mg L〜（-1）化学需氧量（COD）和821±86mg L〜（-1）腐殖质物质（HS）。使用具有商业聚合物膜SR100和NP030的台式过滤模块进行NF。在每种过滤结束时，施加清洁方案以回收初始膜渗透性。在渗透物中表达为HS的荷醋酸化合物的浓度降至84±8mg L〜（-1），COD符合局部立法所施加的废水排放标准。全规模NF的资本成本在Muss 0.772估计，具体的总成本，每卷单位的渗滤液均已估计为8.26亿美元〜（-3）。

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