Development of a schwarzite-based moving bed 3D printed water treatment system for nanoplastic remediation

Autor(es):Mostrar menos -

Gupta, Bramha ^[1] ; Ambekar, Rushikesh S. ^[2] ; Tromer, Raphael M. ^[3] ; Ghosal, Partha Sarathi ^[1] ; Sinha, Rupal ^[1] ; Majumder, Abhradeep ^[4] ; Kumbhakar, Partha ^[2] ; Ajayan, P. M. ^[5] ; Galvao, Douglas S. ^[3] ; Gupta, Ashok Kumar ^[6] ; Tiwary, Chandra Sekhar ^[2]

Afiliação do(s) autor(es)

^[1] Indian Inst Technol Kharagpur, Sch Water Resources, Kharagpur 721302, W Bengal - India

^[2] Indian Inst Technol Kharagpur, Met & Mat Engn, Kharagpur 721302, W Bengal - India

^[3] Univ Estadual Campinas, Appl Phys Dept, UNICAMP, BR-13083859 Campinas, SP - Brazil

^[4] Indian Inst Technol Kharagpur, Sch Environm Sci & Engn, Kharagpur 721302, W Bengal - India

^[5] Rice Univ, Smalley Curl Inst, Dept Mat Sci & Nanoengn, Houston, TX 77005 - USA

^[6] Indian Inst Technol Kharagpur, Environm Engn Div, Dept Civil Engn, Kharagpur 721302, W Bengal - India

• Tipo de documento: Artigo Científico
• Fonte: RSC ADVANCES; v. 11, n. 32, p. 19788-19796, JUN 11 2021.
• Citações Web of Science: 0

Resumo

The impact of micro and nanoplastic debris on our aquatic ecosystem is among the most prominent environmental challenges we face today. In addition, nanoplastics create significant concern for environmentalists because of their toxicity and difficulty in separation and removal. Here we report the development of a 3D printed moving bed water filter (M-3DPWF), which can perform as an efficient nanoplastic scavenger. The enhanced separation of the nanoplastics happens due to the creation of a charged filter material that traps the more surface charged nanoparticles selectively. Synthetic contaminated water from polycarbonate waste has been tested with the filter, and enhanced nanoplastic removal has been achieved. The proposed filtration mechanism of surface-charge based water cleaning is further validated using density function theory (semi-empirical) based simulation. The filter has also shown good structural and mechanical stability in both static and dynamic water conditions. The field suitability of the novel treatment system has also been confirmed using water from various sources, such as sea, river, and pond. Our results suggest that the newly developed water filter can be used for the removal of floating nanoparticles in water as a robust advanced treatment system. (AU)

• Processo FAPESP: 13/08293-7 - CECC - Centro de Engenharia e Ciências Computacionais
• Beneficiário: Munir Salomao Skaf
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs