scholarly journals Recent Progresses of Forward Osmosis Membranes Formulation and Design for Wastewater Treatment

Water ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2043 ◽  
Author(s):  
Goh ◽  
Ismail ◽  
Ng ◽  
Abdullah

Production of potable water or reclaimed water with higher quality are in demand to address water scarcity issues as well as to meet the expectation of stringent water quality standards. Forward osmosis (FO) provides a highly promising platform for energy-efficient membrane-based separation technology. This emerging technology has been recognized as a potential and cost-competitive alternative for many conventional wastewater treatment technologies. Motivated by its advantages over existing wastewater treatment technologies, the interest of applying FO technology for wastewater treatment has increased significantly in recent years. This article focuses on the recent developments and innovations in FO for wastewater treatment. An overview of the potential of FO in various wastewater treatment application will be first presented. The contemporary strategies used in membrane designs and fabrications as well as the efforts made to address membrane fouling are comprehensively reviewed. Finally, the challenges and future outlook of FO for wastewater treatment are highlighted.

2021 ◽  
Vol 23 (36) ◽  
pp. 20313-20322 ◽  
Author(s):  
Yuki Kawabata ◽  
Ralph Rolly Gonzales ◽  
Keizo Nakagawa ◽  
Takuji Shintani ◽  
Hideto Matsuyama ◽  
...  

Reverse osmosis (RO) is a widely used energy-efficient separation technology for water treatment.


2019 ◽  
Vol 5 (4) ◽  
pp. 684-692 ◽  
Author(s):  
Yan Sun ◽  
Shanshan Gao ◽  
Jiayu Tian ◽  
Xiujuan Hao ◽  
Zhiquan Liu ◽  
...  

Air bubbling along the membrane improves water flux, alleviates the deposition of foulants and inhibits the formation of a fouling layer.


2013 ◽  
Vol 777 ◽  
pp. 86-91 ◽  
Author(s):  
Ji Bai Wang ◽  
Ming Liang Ni

A novel magnetic ion exchange resin called MIEX Resin is being utilized in potable water treatment, which indicates significant advantages. The objective of this article is to analyze characteristics and application of MIEX Resin in engineering projects, and hence provide critical review on merits and demerits of the resin. Furthermore, researches on combination of MIEX Resin with other water treatment technologies would be analyzed and discussed to prove potential that a MIEX Resin process integrated with other treatments can be employed in broader fields of wastewater treatment and reuse.


Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5398
Author(s):  
Yunxia Liu ◽  
Honghai Liu ◽  
Zhongrong Shen

In the field of industrial wastewater treatment, membrane separation technology, as an emerging separation technology, compared with traditional separation technology such as precipitation, adsorption, and ion exchange, has advantages in separation efficiency, low energy consumption, low cost, simple operation, and no secondary pollution. The application has been expanding in recent years, but membrane fouling and other problems have seriously restricted the development of membrane technology. Natural cellulose is one of the most abundant resources in nature. In addition, nanocellulose has characteristics of high strength and specific surface area, surface activity groups, as well as being pollution-free and renewable, giving it a very wide development prospect in many fields, including membrane separation technology. This paper reviews the current status of nanocellulose filtration membrane, combs the widespread types of nanocellulose and its derivatives, and summarizes the current application of cellulose in membrane separation. In addition, for the purpose of nanocellulose filtration membrane in wastewater treatment, nanocellulose membranes are divided into two categories according to the role in filtration membrane: the application of nanocellulose as membrane matrix material and as a modified additive in composite membrane in wastewater treatment. Finally, the advantages and disadvantages of inorganic ceramic filtrations and nanocellulose filtrations are compared, and the application trend of nanocellulose in the filtration membrane direction is summarized and discussed.


2018 ◽  
Vol 101 (5) ◽  
pp. 1341-1352 ◽  
Author(s):  
Chen Li ◽  
Meihan Zhang ◽  
Chengwen Song ◽  
Ping Tao ◽  
Menghan Sun ◽  
...  

Abstract The increasing environmental awareness and stricter regulations have prompted the developments of various treatment technologies for dye wastewater. Membrane separation receives extensive attention as a promising technology because of many advantages. However, higher removal performance requirements and membrane fouling issues make a single separation method inadequate for the removal of dyes from industrial wastewater. Exerting an electric field on membrane separation system for dye wastewater treatment has already been proposed and newly developed in recent years because each technology complements the advantages and overcomes the challenges of the other. Although the amount of literature in this field is limited, this integrated technology has exhibited good performance on dye removal and is believed to have a bright prospect. This review mapped out the previous studies and current trends as well as provided a prospective outlook for advances in various membrane-combining technologies with an electric field, especially with the electric advanced oxidation processes. The different combination patterns, performance evaluations, removal mechanisms, and treatment parameters are gathered and discussed.


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