Recent progress and future directions of membranes green polymers for oily wastewater treatment

Abstract

The preparation, modification and application of green polymers such as poly-lactic acid (PLA), chitosan (CS), and cellulose acetate (CA) for oily wastewater treatment is summed up in this review. Due to the low environmental pollution, good chemical resistivity, high hydrophobicity, and good capacity for water-oil emulsion separation of the presented polymers, it then highlights the various membrane production methods and their role in producing effective membranes, with a focus on recent advances in improving membrane properties through the addition of various Nano materials. As a result, the hydrophilic/hydrophobic properties that are critical in the oil separation mechanism are highlighted. Finally, it looks at the predictions and challenges in oil/water separation and recovery. These ideas are discussed with a focus on modern production methods and oil separation proficiency. HIGHLIGHTS Recently, eco-friendly membranes play an important role in the positive environmental impact and environmental conservation. This review provides insights into understand of eco-friendly membrane applications for water–oil processing, where nanofiltration and ultrafiltration eco-friendly membrane systems are mostly applied to the treatment of oily-wastewater effluent.;

Keywords

• cellulose acetate
• chitosan
• green polymers
• membrane
• oily water treatment
• poly lactic acid