Constructed wetlands for textile wastewater remediation: A review on concept, pollutant removal mechanisms, and integrated technologies for efficiency enhancement. (March 2022)

• Record Type: Journal Article
• Authors: Sharma, Rozi; Malaviya, Piyush
• Is Part Of: Chemosphere. Volume 290(2022)
• Publication Date: 2022-03
• Subjects: Constructed wetlands -- Ecotechnology -- Integrated system -- Remediation mechanisms -- Wastewater; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2021.133358
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Textile industries are among the ecologically unsustainable industries that release voluminous wastewater threatening ecosystem health. The constructed wetlands (CWs) are low-cost eco-technological interventions for the management of industrial wastewaters. The CWs are self-sustaining remediation systems that do not require an external source of energy and encompass simple operational mechanisms including biological (bioremediation and phytoremediation), chemical, and physical processes for pollutant removal. This review idiosyncratically scrutinizes the recent advances and developments in CWs, and their types employed for textile wastewater treatment. The major focus is on mechanisms involved during the removal of contaminants from textile wastewater in CWs and factors affecting the performance of the system. The article also discusses the State-of-the-Art integrated technologies e.g., CW-MFCs/algal ponds/sponge iron coupled systems, for the performance and sustainability enhancement of CWs. All the important aspects together with the technology amalgamation are critically synthesized for establishing suitable strategies for CW-based textile wastewater treatment systems. Graphical abstract: Image 1 Highlights: Constructed wetland (CW) is sustainable solution for textile wastewater management. Vegetation, substrate, and microorganisms are fundamentals of constructed wetlands. Physico-chemical and biological mechanisms are involved in CW-based remediation. Integrated CW-microbial fuel cells/algal ponds/sponge iron coupled systems preferred.