A Review on Membrane Technology and Chemical Surface Modification for the Oily Wastewater Treatment

Abstract

Cleaning of wastewater for the environment is an emerging issue for the living organism. The separation of oily wastewater, especially emulsified mixtures, is quite challenged due to a large amount of wastewater produced in daily life. In this review, the membrane technology for oily wastewater treatment is presented. In the first part, the global membrane market, the oil spill accidents and their results are discussed. In the second and third parts, the source of oily wastewater and conventional treatment methods are represented. Among all methods, membrane technology is considered the most efficient method in terms of high separation performance and easy to operation process. In the fourth part, we provide an overview of membrane technology, fouling problem, and how to improve the self-cleaning surface using functional groups for effectively treating oily wastewater. The recent development of surface-modified membranes for oily wastewater separation is investigated. It is believed that this review will promote understanding of membrane technology and the development of surface modification strategies for anti-fouling membranes.

Fouling and Chemical Cleaning of Microfiltration Membranes: A Mini-Review

“…TiO2 is usually preferred due to being cheap, highly photoreactive, chemically and biologically inert, nontoxic, and photostable [8,9]. Photocatalysis is often limited by the turbidity of the water being treated, as the ultraviolet (UV) light Membrane separation technologies are divided into the following four processes based on pore size: microfiltration (0.1-5 µm), ultrafiltration (0.01-0.1 µm), nanofiltration (0.001 to 0.01 µm), and reverse osmosis (0.0001 to 0.001 µm) [18]. These processes are shown tabular in Table 2.…”

Magnetic Properties of Electrospun Magnetic Nanofiber Mats after Stabilization and Carbonization

“…Electrospinning makes it possible to create nanofiber mats from diverse materials, such as pure polymers [1][2][3], polymers blends, composite fibers from polymers and ceramics or metals [4,5], and cyclodextrins [6]. These can be used in diverse applications such as filters [7][8][9], biotechnology and tissue engineering [10][11][12], for energy harvesting and storage [13,14], or other "smart" functions [15]. Recently, a strong focus of diverse research groups has been related to electrospinning magnetic nanofibers, either as composites [16][17][18] or, after calcination of the composites to remove polymers, as pure metal nanofibers [19][20][21].…”

Studies on Adsorption Characteristics of Corn Cobs Activated Carbon for the Removal of Oil and Grease from Oil Refinery Desalter Effluent in a Downflow Fixed Bed Adsorption Equipment

“…Most importantly, the presence of O&G in water bodies constitutes a major threat to aquatic life as it consumes dissolved oxygen necessary for aquatic life survival (Islam et al, 2013), and in greater quantities, it limits oxygen transfer (Alade et al, 2011;Facchin et al, 2013). Water pollution has also resulted in diseases and deaths globally (Yalcinkaya et al, 2020;. This work seeks to solve this challenge through the aid of an adsorption column.…”

“…Nowadays, there are lots of technologies or methods used successfully for the removal of O&G, they include conventional coagulation, electrocoagulation, membrane distillation, adsorption, filtration, etc. (Adams et al, 2017;Ariana et al, 2016;Diraki et al, 2019;Kulkarni, 2016;Kulowiec, 1979;Manilal et al, 2020;Mazumder and Mukherjee, 2011;Pintor et al, 2016;Rahmat et al, 2018;Umembamalu et al, 2020;Yalcinkaya et al, 2020). The choice of adsorption for this research is due to its effective and economical nature regarding the usage of agricultural derived biomass as adsorbents with neither little nor economic value (Bharathi and Ramesh, 2013;Choi, 2019;Goel et al, 2005;Onyechi, 2014;Umembamalu et al, 2020).…”