The separation of oily water using low-cost natural materials: Review and development

Preparation and characterization of biodegradable polylactic acid/poly (butyleneadipate- co-terephthalate) melt-blown nonwovens for oil-water separation

“…Consequently, it is imperative to develop e cient oil-water separation technologies and materials. Compared with traditional separation methods including coagulation [4], otation [5], centrifugation [6], magnetic separation [7], ultrasonic separation [8] and gravity separation [9], lipophilic materials with special hydrophobicity have attracted the attention of scholars. In recent decades, researchers have made great efforts to create new materials [7,[10][11][12].…”

Improved oily wastewater rejection and flux of hydrophobic PVDF membrane after polydopamine-polyethyleneimine co-deposition and modification

“…The most conventional technology is skimming, which is generally used for the separation of heterogeneous OWWs. Alternative technologies such as adsorption, absorption, chemical and biological processes were also developed to overcome these problems, but resulted in the low effectiveness of the process, especially for water-oil emulsions which are difficult to process using these conventional techniques (Sun et al, 2020;Yang et al, 2021;Yue et al, 2019). Recently, the exploration of membrane technology as a promising solution to overcome the problems related to water management including the removal of OWW from surface water has attracted many researchers (Bolto et al, 2020).…”

Polymeric Membranes for Oil-Water Separation: A Review

“…The exploration, production, transportation, and refining of crude oil are always associated with the separation of water-oil mixtures as the primary stage of oil refining or due to the accidents resulting in the oil spilling. In the case of oil-polluted surface waters, there are a big variety of adsorbents traditionally used to collect the excess of the oil, including sponges [ 1 , 2 ], foam materials [ 3 ], and natural adsorbents [ 4 ]. However, the complete cleaning of water from the presence of the oil is complicated by the formation of oil-water emulsions, which become more stable due to the presence of different components in the oil or to water acting as emulsifiers such as asphaltenes, resins, mineral salts, clay particles, etc.…”