Progress in Capacitive Deionization for Desalination of Brackish Water: A Materials Perspective

Ai, Chengying; Ponnurangam, Sathish

doi:10.1021/bk-2020-1348.ch004

Cited by 1 publication

(1 citation statement)

References 128 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Membrane separation with a tailored pore size offers strategic elimination of a wide range of contaminants, including particulate matter, colloids, persistent recalcitrants, waterborne pathogens like bacteria, fungi, algae, protozoa, and viruses, and even ions and heavy metals. Different technological interventions have enabled scientific progress in desalination, heavy metal removal, pathogen removal, and electrodialysis, among others . − Different membrane processes like reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF) have been deployed in the past decade with some of the successful polymer materials like cellulose acetate (CA), polysulfone (PSU), polyvinylidene fluoride (PVDF), polydimethylsiloxane (PDMS), polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyethersulfone (PESU), polyamide (PA), polyacrylonitrile (PAN), and poly(vinyl alcohol) (PVA). , Further, with engineered strategies incorporating biocidal and antifouling agents, such membranes’ shelf lives have also been enhanced . The key concern lies in the prolonged usage and disposal consideration after the intended end-use of these membranes.…”

Section: Introductionmentioning

confidence: 99%

Going beyond Cellulose and Chitosan: Synthetic Biodegradable Membranes for Drinking Water, Wastewater, and Oil–Water Remediation

2023

View full text Add to dashboard Cite

Membrane technology is an efficient way to purify water, but it generates non-biodegradable biohazardous waste. This waste ends up in landfills, incinerators, or microplastics, threatening the environment. To address this, research is being conducted to develop compostable alternatives that are sustainable and ecofriendly. Bioplastics, which are expected to capture 40% of the market share by 2030, represent one such alternative. This review examines the feasibility of using synthetic biodegradable materials beyond cellulose and chitosan for water treatment, considering cost, carbon footprint, and stability in mechanical, thermal, and chemical environments. Although biodegradable membranes have the potential to close the recycling loop, challenges such as brittleness and water stability limit their use in membrane applications. The review suggests approaches to tackle these issues and highlights recent advances in the field of biodegradable membranes for water purification. The end-of-life perspective of these materials is also discussed, as their recyclability and compostability are critical factors in reducing the environmental impact of membrane technology. This review underscores the need to develop sustainable alternatives to conventional membrane materials and suggests that biodegradable membranes have great potential to address this challenge.

show abstract