Wastewater Treatment by Polymeric Microspheres: A Review

This review addresses polymer microspheres used as adsorbent for wastewater treatment. The removal of various pollutants (including dyes, heavy metal ions, and organic pollutants) is a prominent issue, as they can cause severe health problems. Porous microspheres can provide large specific area and...

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Main Authors: Jiwon Lee, Rajkumar Patel
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/9/1890
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author Jiwon Lee
Rajkumar Patel
author_facet Jiwon Lee
Rajkumar Patel
author_sort Jiwon Lee
collection DOAJ
description This review addresses polymer microspheres used as adsorbent for wastewater treatment. The removal of various pollutants (including dyes, heavy metal ions, and organic pollutants) is a prominent issue, as they can cause severe health problems. Porous microspheres can provide large specific area and active sites for adsorption or photo degradation. Enhancement in performance is achieved by various modifications, such as the introduction of nanoparticles, magnetic particles, and ZIF-8. Some microspheres were synthesized from synthetic polymers such as vinylic polymer and polydopamine (PDA) through a facile fabrication process. Natural polymers (such as cellulose, alginate, and chitosan) that are biodegradable and eco-friendly are also used. The adsorbents used in industrial application require high adsorption capacity, thermal stability, and recyclability. Batch adsorption experiments were conducted to investigate the optimal conditions, influence of related factors, and adsorption capacities. Insights regarding the adsorption mechanisms were given from the kinetic model, isotherm model, and various characterization methods. The recyclability is investigated through regeneration ratio, or their maintenance of their capability through repeated adsorption-desorption cycles. The high potential of polymer microsphere for the removal of pollutants from wastewater is shown through the high adsorption capacities, environmentally friendliness, and high stability.
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spelling doaj.art-ddd1be4a184447adaf08df707355e5ce2023-11-23T09:07:46ZengMDPI AGPolymers2073-43602022-05-01149189010.3390/polym14091890Wastewater Treatment by Polymeric Microspheres: A ReviewJiwon Lee0Rajkumar Patel1Energy and Environmental Science and Engineering (EESE), Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, KoreaEnergy and Environmental Science and Engineering (EESE), Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, KoreaThis review addresses polymer microspheres used as adsorbent for wastewater treatment. The removal of various pollutants (including dyes, heavy metal ions, and organic pollutants) is a prominent issue, as they can cause severe health problems. Porous microspheres can provide large specific area and active sites for adsorption or photo degradation. Enhancement in performance is achieved by various modifications, such as the introduction of nanoparticles, magnetic particles, and ZIF-8. Some microspheres were synthesized from synthetic polymers such as vinylic polymer and polydopamine (PDA) through a facile fabrication process. Natural polymers (such as cellulose, alginate, and chitosan) that are biodegradable and eco-friendly are also used. The adsorbents used in industrial application require high adsorption capacity, thermal stability, and recyclability. Batch adsorption experiments were conducted to investigate the optimal conditions, influence of related factors, and adsorption capacities. Insights regarding the adsorption mechanisms were given from the kinetic model, isotherm model, and various characterization methods. The recyclability is investigated through regeneration ratio, or their maintenance of their capability through repeated adsorption-desorption cycles. The high potential of polymer microsphere for the removal of pollutants from wastewater is shown through the high adsorption capacities, environmentally friendliness, and high stability.https://www.mdpi.com/2073-4360/14/9/1890polymeric microspherewastewatervinylic polymernatural polymeradsorption
spellingShingle Jiwon Lee
Rajkumar Patel
Wastewater Treatment by Polymeric Microspheres: A Review
Polymers
polymeric microsphere
wastewater
vinylic polymer
natural polymer
adsorption
title Wastewater Treatment by Polymeric Microspheres: A Review
title_full Wastewater Treatment by Polymeric Microspheres: A Review
title_fullStr Wastewater Treatment by Polymeric Microspheres: A Review
title_full_unstemmed Wastewater Treatment by Polymeric Microspheres: A Review
title_short Wastewater Treatment by Polymeric Microspheres: A Review
title_sort wastewater treatment by polymeric microspheres a review
topic polymeric microsphere
wastewater
vinylic polymer
natural polymer
adsorption
url https://www.mdpi.com/2073-4360/14/9/1890
work_keys_str_mv AT jiwonlee wastewatertreatmentbypolymericmicrospheresareview
AT rajkumarpatel wastewatertreatmentbypolymericmicrospheresareview