Next Article in Journal
Susceptibility to Gully Erosion: Applying Random Forest (RF) and Frequency Ratio (FR) Approaches to a Small Catchment in Ethiopia
Previous Article in Journal
Impact of Suspended Solids and Organic Matter on Chlorine and UV Disinfection Efficiency of Greywater
Open AccessReview

Current and Emerging Adsorbent Technologies for Wastewater Treatment: Trends, Limitations, and Environmental Implications

1
Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
2
College of Life Sciences, Yan’an University, Yan’an 716000, Shaanxi, China
3
Department of Chemistry, The Government Sadiq College Women University, Bahawalpur 63100, Pakistan
4
Soil Fertility Research Institute, Tando Jam 70060, Sindh, Pakistan
5
Green Chemistry Laboratory, Department of Chemistry, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
*
Authors to whom correspondence should be addressed.
First two authors contributed equally to this work.
Water 2021, 13(2), 215; https://doi.org/10.3390/w13020215
Received: 2 December 2020 / Revised: 11 January 2021 / Accepted: 13 January 2021 / Published: 18 January 2021
Wastewater generation and treatment is an ever-increasing concern in the current century due to increased urbanization and industrialization. To tackle the situation of increasing environmental hazards, numerous wastewater treatment approaches are used—i.e., physical, chemical, and biological (primary to tertiary treatment) methods. Various treatment techniques being used have the risks of producing secondary pollutants. The most promising technique is the use of different materials as adsorbents that have a higher efficacy in treating wastewater, with a minimal production of secondary pollutants. Biosorption is a key process that is highly efficient and cost-effective. This method majorly uses the adsorption process/mechanism for toxicant removal from wastewater. This review elaborates the major agricultural and non-agricultural materials-based sorbents that have been used with their possible mechanisms of pollutant removal. Moreover, this creates a better understanding of how the efficacy of these sorbents can be enhanced by modification or treatments with other substances. This review also explains the re-usability and mechanisms of the used adsorbents and/or their disposal in a safe and environmentally friendly way, along with highlighting the major research gaps and potential future research directions. Additionally, the cost benefit ratio of adsorbents is elucidated. View Full-Text
Keywords: adsorption; agriculture waste and peels; nanotechnology; biosorption mechanism; contaminant removal adsorption; agriculture waste and peels; nanotechnology; biosorption mechanism; contaminant removal
Show Figures

Figure 1

MDPI and ACS Style

Younas, F.; Mustafa, A.; Farooqi, Z.U.R.; Wang, X.; Younas, S.; Mohy-Ud-Din, W.; Ashir Hameed, M.; Mohsin Abrar, M.; Maitlo, A.A.; Noreen, S.; Hussain, M.M. Current and Emerging Adsorbent Technologies for Wastewater Treatment: Trends, Limitations, and Environmental Implications. Water 2021, 13, 215. https://doi.org/10.3390/w13020215

AMA Style

Younas F, Mustafa A, Farooqi ZUR, Wang X, Younas S, Mohy-Ud-Din W, Ashir Hameed M, Mohsin Abrar M, Maitlo AA, Noreen S, Hussain MM. Current and Emerging Adsorbent Technologies for Wastewater Treatment: Trends, Limitations, and Environmental Implications. Water. 2021; 13(2):215. https://doi.org/10.3390/w13020215

Chicago/Turabian Style

Younas, Fazila; Mustafa, Adnan; Farooqi, Zia U.R.; Wang, Xiukang; Younas, Sadia; Mohy-Ud-Din, Waqas; Ashir Hameed, Muhammad; Mohsin Abrar, Muhammad; Maitlo, Ali A.; Noreen, Saima; Hussain, Muhammad M. 2021. "Current and Emerging Adsorbent Technologies for Wastewater Treatment: Trends, Limitations, and Environmental Implications" Water 13, no. 2: 215. https://doi.org/10.3390/w13020215

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop