Direct contact membrane distillation (DCMD) and high-temperature nanofiltration (NF) were compared in terms of technical and economic aspects for the treatment of pressure oxidation process (POX) real effluent. Tests were carried out in bench scale and differences in fouling behavior and its impacts on NF and MD performance were evaluated. High pollutants rejection rates were observed for both systems (>92.4 %). However, DCMD had better permeate quality and lower energy requirement, which contributed significantly to its lower operational costs due to use of the effluent residual heat. CAPEX and OPEX were estimated at US$/m³ 2.251 for NF and US$/m³ 0.233 for DCMD. DCMD application represents a saving of US$ 45,138.3 annually supplying 250,768.3 m³ of high-quality reuse water. At the end, this research allowed for a better comprehension of these membrane technologies, preventing the production of waste and increasing efficiencies in the uses of energy, water, and resources.

在技​​术和经济方面，比较了直接接触膜蒸馏（DCMD）和高温纳滤（NF）来处理压力氧化过程（POX）的实际废水。以台式规模进行测试，并评估结垢行为的差异及其对NF和MD性能的影响。两种系统均观察到较高的污染物去除率（> 92.4％）。但是，DCMD具有更好的渗透质量和较低的能源需求，这归因于使用废渣余热而降低了运营成本。NF的CAPEX和OPEX估计为$ / m ³ 2.251 ，DCMD的CAPEX和OPEX估计为$ / m ³ 0.233。DCMD的应用每年可节省45,138.3美元，供应250,768.3 m ³高质量的回用水。最后，这项研究使人们对这些膜技术有了更好的理解，防止了废物的产生，并提高了能源，水和资源的利用效率。