Treatment of aqueous arsenic – A review of biosorbent preparation methods

Benis, Khaled Zoroufchi; Damuchali, Ali Motalebi; McPhedran, Kerry N.; Soltan, Jafar

doi:10.1016/j.jenvman.2020.111126

Cited by 50 publications

(21 citation statements)

References 86 publications

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“…This application can be extended to an industrial scale, for which the sorbent must have adequate properties. Precisely, one of the interesting properties of biomass is that it can be easily modified to adapt it to commercial and industrial uses [73].…”

Section: Biosorption Of Metalsmentioning

confidence: 99%

“…It would be desirable if the biosorbents had, at least, characteristics comparable in efficiency to the commercial ones. There are several alternatives that can improve the effectiveness of biosorbents, ranging from chemical or physical modifications to the use of nanomaterials [29,63,73]. Chemical of physical modifications applies mainly to dead biomass.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

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Biosorption: A Review of the Latest Advances

Torres

2020

Processes

148

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Biosorption is a variant of sorption techniques in which the sorbent is a material of biological origin. This technique is considered to be low cost and environmentally friendly, and it can be used to remove pollutants from aqueous solutions. The objective of this review is to report on the most significant recent works and most recent advances that have occurred in the last couple of years (2019–2020) in the field of biosorption. Biosorption of metals and organic compounds (dyes, antibiotics and other emerging contaminants) is considered in this review. In addition, the use and possibilities of different forms of biomass (live or dead, modified or immobilized) are also considered.

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Section: Biosorption Of Metalsmentioning

confidence: 99%

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Biosorption: A Review of the Latest Advances

Torres

2020

Processes

148

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“…The presence of functional groups such as hydroxyl (–OH), carboxyl (–COOH), sulphydryl (–SH), amino (–NH 2 ), alcoholic, and other ester groups on the surface of the biosorbents facilitates the removal process of As. 31,139,140 This process is considered both an eco-friendly and cost-effective substitute compared to the conventional technologies such as co-precipitation, ion exchange, and membrane processes used for removing As.…”

Section: Emerging Technologies For Arsenic Mitigationmentioning

confidence: 99%

A review of arsenic mitigation strategies in community water supplies with insights from South Asia: options, opportunities and constraints

Bhowmik

Sarkar

Bhattacharya

et al. 2022

Environ. Sci.: Water Res. Technol.

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“…However, the efficiency of sorption on biosorbents often needs to be modified if the natural surface area was too small and inefficient for sorption [41]. Chemical modification methods are commonly used, where the biowaste is: acid (HCl, HNO 3 , H 2 SO 4 , CH 3 COOH) or base (NaOH, Na 2 CO 3 , Ca(OH) 2 ), treatment, cross-linking with glutaraldehyde or epichlorohydrin [42][43][44][45]. Studies report that N-functional groups on the biosorbent surface promote the adsorption of heavy metal ions from aqueous solutions through a chelation mechanism [46,47].…”

Section: Preparation Of Biowastementioning

confidence: 99%

Towards a Circular Economy: Analysis of the Use of Biowaste as Biosorbent for the Removal of Heavy Metals

Madeła

Skuza

2021

Energies

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Industrial human activity has led to the release of substantial amounts of heavy metals into the environment. Contamination of water with heavy metals such as lead, cadmium, copper, zinc, chromium, or nickel represents a serious problem. As part of the circular economy, it is appropriate to use biowaste from agriculture, fisheries, and the timber industry as biosorbents. In this literature review, the potential of using these biowaste groups as biosorbents for metal removal is presented. This biowaste is characterized by the presence of carboxyl, hydroxyl, carbonyl, amide, amine, sulfydryl, and other groups on their surface, which form complexes and chelates with metals present in water. Biosorption seems to be a potential alternative to conventional technologies for removing or recovering heavy metals from water or wastewater, which are uneconomical and generate additional waste. The paper demonstrates that harnessing the potential of biowaste to remove metals is beneficial to the environment as they can solve the problem of incineration and realise recycling that meets the circular economy. Although the choice of a suitable biosorbent for the removal of a particular metal involves a lot of research, the high biosorption efficiency, low cost, and renewability justify their use.

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Treatment of aqueous arsenic – A review of biosorbent preparation methods

Cited by 50 publications

References 86 publications

Biosorption: A Review of the Latest Advances

Biosorption: A Review of the Latest Advances

A review of arsenic mitigation strategies in community water supplies with insights from South Asia: options, opportunities and constraints

Towards a Circular Economy: Analysis of the Use of Biowaste as Biosorbent for the Removal of Heavy Metals

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