Zine Mohammed, Touach Noureddine, Lotfi El Mostapha, Moulin Philippe
Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, ENSAM, Mohammed V University in Rabat, Avenue des Forces Armées Royales, Rabat B.P. 6207, Morocco.
Aix Marseille Univ., CNRS, Centrale Méditerranée, M2P2 UMR 7340, Équipe Procédés Membranaires (EPM), Europole de l'Arbois, BP80, Pavillon Laennec, Hall C, 13545 Aix en Provence, CEDEX, France.
Membranes (Basel). 2025 Feb 20;15(3):67. doi: 10.3390/membranes15030067.
The depollution of constructed wetland-pretreated olive mill wastewater (OMW) using a membrane filtration system was experimentally studied. Dead-end filtration (DEF) was employed to evaluate suitable MF/UF membranes and select the appropriate molecular weight cut-off for optimal OMW treatment. Removal efficiencies for COD (chemical oxygen demand) and TOC (total organic carbon) using DEF reached maximum values of 88.14% and 11.17%, respectively. Adsorption of raw and pretreated OMW on granular activated carbon was also carried out for a comparative study against DEF and pretreatment. The semi-industrial-scale experiments were conducted using commercial ceramic ultrafiltration (UF) membranes (150 and 50 kDa) in cross-flow filtration (CFF) mode at a permeate flux around 200 L h m and a trans-membrane pressure (TMP) of 3.5-3.8 bars. This post-treatment had a significant impact on COD removal efficiency from pretreated OMW, reaching 78.5%. The coupled process proposed in this study achieved removal efficiencies of 97%, 97%, and 99.9% of COD, TOC, and turbidity, respectively.
对采用膜过滤系统对人工湿地预处理后的橄榄榨油废水（OMW）进行脱污染处理进行了实验研究。采用死端过滤（DEF）来评估合适的微滤/超滤膜，并选择合适的截留分子量以实现对OMW的最佳处理。使用DEF时，化学需氧量（COD）和总有机碳（TOC）的去除效率分别达到最大值88.14%和11.17%。还对原OMW和预处理后的OMW在颗粒活性炭上的吸附进行了研究，以便与DEF和预处理进行对比。半工业规模实验采用商业陶瓷超滤（UF）膜（150 kDa和50 kDa），以错流过滤（CFF）模式进行，渗透通量约为200 L·h⁻¹·m⁻²，跨膜压力（TMP）为3.5 - 3.8巴。这种后处理对预处理后OMW的COD去除效率有显著影响，达到了78.5%。本研究提出的耦合工艺对COD、TOC和浊度的去除效率分别达到了97%、97%和99.9%。
