Potential of sawdust materials for the removal of dyes and heavy metals: examination of isotherms and kinetics

Sahmoune, Mohamed Nasser; Yeddou, Ahmed Réda

doi:10.1080/19443994.2015.1135824

Cited by 48 publications

(25 citation statements)

References 108 publications

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“…Biomass materials, such as spent grain, onion skin, rice husks, bark and sawdust, maize cobs, wheat bran, and insoluble starch have been utilized for the removal of arsenic species from water. [137][138][139] Biochar is another material that can be obtained from pyrolysis of agricultural waste. 140 Because of its easy availability and low cost, biochar has been considered as an alternative adsorbent for polluted water treatment.…”

Section: Iron Oxy-hydroxides Doped Composite Adsorbentsmentioning

confidence: 99%

A critical review on arsenic removal from water using iron-based adsorbents

et al. 2018

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Section: Iron Oxy-hydroxides Doped Composite Adsorbentsmentioning

confidence: 99%

A critical review on arsenic removal from water using iron-based adsorbents

et al. 2018

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“…Among these methods, adsorption has increasingly received much attention in recent years due to its unique benefits, especially when wastewater with low metal ion concentration must be treated. Many different kinds of adsorbents have been developed and among them, activated carbon [17][18][19][20][21], activated alumina [22][23][24][25], coated silica gel [26,27] and treated sawdust [28][29][30] are the most used. The objective of the present research is to implement an inexpensive and highly adsorbing mechanism based on coupling two different materials, zeolite and magnetite, into the same particle forming a composite tool that can be used for magnetic removal of harmful ions.…”

Section: Introductionmentioning

confidence: 99%

A Study on Magnetic Removal of Hexavalent Chromium from Aqueous Solutions Using Magnetite/Zeolite-X Composite Particles as Adsorbing Material

Kouli¹,

Banis²,

Savvidou

et al. 2020

IJMS

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Toxic and heavy metals are considered harmful derivatives of industrial activities; they are not biodegradable and their accumulation in living organisms can become lethal. Among other heavy and toxic metals, chromium is considered hazardous, especially in the hexavalent (Cr6+) form. Numerous established studies show that exposure to Cr6+ via drinking water leads to elevated chromium levels in tissues, which may result in various forms of cancer. The purpose of this research is to synthesize magnetite/zeolite-X composite particles for the adsorption and magnetic removal of Cr6+ ions from aqueous solutions. Synthesis and characterization of such composite nanomaterials, along with an initial experimental evaluation of Cr6+ removal from water-based solution, are presented. Results show that zeolite-X is a very promising zeolite form, that when bound to magnetic nanoparticles can be used to trap and magnetically remove toxic ions from aqueous solutions.

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“…It comprises of several organic compounds (cellulose, hemicellulose and lignin), which has polyphenolic groups that could bind dyes through different mechanistic reactions. The remediation potential of sawdust towards different pollutants has been reviewed . Sawdust also reported being an excellent sorbent for various dye molecules from wastewaters .…”

Section: Introductionmentioning

confidence: 99%

“…The remediation potential of sawdust towards different pollutants has been reviewed . Sawdust also reported being an excellent sorbent for various dye molecules from wastewaters . Sawdust adsorption capacities towards different reactive dyes are reported in Table .…”

Section: Introductionmentioning

confidence: 99%

A Critical Insight into Biomass Derived Biosorbent for Bioremediation of Dyes

et al. 2019

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Organic pollutants, such as dyes released during industrial operations are one of the major reasons for the degradation of water quality. However, treatment technologies to remediate these high volumes of wastewaters are often not sufficient. Hence, the excess dye wastewater generated is usually discharged without prior treatment. The use of adsorbents such as activated carbon is widely employed to separate dye molecules from wastewater. Biochar is a popular recent alternative for the treatment of dye‐bearing effluents to selectively isolate dye molecules. Biochar is normally manufactured in the oxygen free environment by thermal degradation of organic materials. On the other hand, dyes are extensively employed in many textile industries because of their desirable properties including attractive colour, water‐fast and easy application methods. Nevertheless, during the dyeing process of cellulose fibres around half of the applied dyes may enter the wash water, and these let outs are highly resistant to traditional wastewater treatment methods. Henceforth, new techniques need to be applied for successful remediation of dye wastewaters. In this perspective, an endeavor has been made in this work to explore the possibility and practicability of biochar as sorbent material for dyes.

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Potential of sawdust materials for the removal of dyes and heavy metals: examination of isotherms and kinetics

Cited by 48 publications

References 108 publications

A critical review on arsenic removal from water using iron-based adsorbents

A critical review on arsenic removal from water using iron-based adsorbents

A Study on Magnetic Removal of Hexavalent Chromium from Aqueous Solutions Using Magnetite/Zeolite-X Composite Particles as Adsorbing Material

A Critical Insight into Biomass Derived Biosorbent for Bioremediation of Dyes

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