Carbohydrate biopolymers, lignin based adsorbents for removal of heavy metals (Cd2+, Pb2+, Zn2+) from wastewater, regeneration and reuse for spent adsorbents including latent fingerprint detection: A review

Fouda-Mbanga, BG; Prabakaran, E.; Pillay, Kriveshini

doi:10.1016/j.btre.2021.e00609

Cited by 106 publications

(33 citation statements)

References 130 publications

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“…Já a quitosana é formada pela desacetilação da quitina em meio alcalino (Figura 4). A quitosana é de ampla aplicação devido à não toxicidade, biocompatibilidade, biodegradabilidade, alta resistência mecânica e propriedades físico-químicas (Fouda-Mbanga et al, 2021). Comumente, ela é empregada como adsorvente para eliminação de íons de metais pesados em águas residuais (Salehi et al, 2016).…”

Section: Fontes De Subprodutos Para Produção De Biopolímerosunclassified

Principais biopolímeros derivados de subprodutos alimentares: uma breve revisão

Justino

Cunha²,

Martins³

et al. 2022

J. Eng. Exact Sci.

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As indústrias de alimentos produzem diariamente grandes quantidades de subprodutos provenientes do processamento de leite, carne, cerveja, vinho, cana-de-açúcar, café, hortaliças e frutas, entre outros produtos. Os subprodutos alimentares gerados incluem cascas, sementes, caules, raízes, bagaço, resíduo de polpa e soro de leite. A falta de gestão sustentável associada aos baixos estímulos de aproveitamento desses subprodutos por meio da legislação vigente, estimula o descarte desses materiais em aterros sanitários. No entanto, estudos apontam grande potencial no desenvolvimento de biomateriais utilizando subprodutos como fonte de máteria-prima, instigando o meio acadêmico e industrial na busca por novos materiais de caráter sustentável, possibilitando o aumento da receita, além de reduzir possíveis agentes poluidores. Diante disso, essa revisão tem como objetivo destacar a aptidão de subprodutos alimentares na formulação de biomateriais.

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Section: Fontes De Subprodutos Para Produção De Biopolímerosunclassified

Principais biopolímeros derivados de subprodutos alimentares: uma breve revisão

Justino

Cunha²,

Martins³

et al. 2022

J. Eng. Exact Sci.

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“…However, the experimental treatment carried out showed a fundamental difference. The most widely used heavy metal investigation is to remove Cd2 +, Pb2 +, and Zn2 + ions as reported in a review study (Fouda-Mbanga et al, 2021). Meanwhile, investigations regarding the total metals Cd, Hg, and Pb based on the ratio of adsorbent and temperature are still lacking in various publications.…”

Section: Comparison Of the Total Bottom Metalmentioning

confidence: 99%

Comparison of Remaining Coal-Burning Ash-Based on Cd, Pb, and Hg Concentration at Different Temperatures: A Case Study in Aceh Province

Gani

Erdiwansyah

Sardjono

et al. 2022

Journal of Environmental Engineering and Landscape Management

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This study aims to investigate the efficiency level of absorption of heavy metals Cd, Pb, and Hg. Combustion is carried out using coal with the addition of absorbent ratios of 2%, 4%, 6%, 8%, and 10%. The adsorbent used is natural zeolite which is widely available and inexpensive. This study provides practical implications for the easy and inexpensive removal of heavy metal emissions during combustion. The results show that the maximum efficiency level for Cd metal reached 22.96% which was recorded at a temperature of 600 °C for an adsorbent ratio of 10%. The maximum efficiency level of Pb metal from the experimental results was obtained at a temperature of 600 °C with an adsorbent ratio of 10% to 10.83%. Meanwhile, the efficiency level for Hg metal produced was 0.05% which was recorded at the adsorbent ratio of 10% at 800 °C. The maximum total capacity of Pb metal for each tested combustion temperature was 600 °C 39.85 mg/kg, 700 °C 25.43 mg/kg, and 800 °C 7.21 mg/kg. On the other words, the higher the combustion temperature tested, the lower the absorption efficiency rate obtained.

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“…Several reviews have discussed different modification methods of cellulose and their impact on heavy metal adsorption mostly by the batch adsorption process and relatively less by the continuous process. − Few reviews have examined different cellulose modifications coupled with their adsorption mechanisms. − This review attempts to present a comprehensive understanding of the scientific literature to explore the influence of modified cellulose on metal adsorption mechanisms. The review systematically encompasses (i) a brief overview of pretreatment methods for cellulose extraction, factors affecting adsorption, adsorption isotherms, kinetic and thermodynamic parameters, (ii) various modifications on cellulose for Cd 2+ , Pb 2+ , and Cu 2+ adsorption that include functional group transformations and conversion to nanocellulose, nanocomposites, hydrogels, aerogels, beads, and membranes, and (iii) an adsorbent–adsorbate binding mechanism including theoretical aspects of binding using computational studies.…”

Section: Introductionmentioning

confidence: 99%

Critical Review of Bioadsorption on Modified Cellulose and Removal of Divalent Heavy Metals (Cd, Pb, and Cu)

Kaur

Sengupta

Mukhopadhyay³

2022

Ind. Eng. Chem. Res.

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Heavy metal contamination in soil and water has become a serious threat to all forms of life. Finding a sustainable remediation method is the prime concern of researchers worldwide. In this quest, cellulose has emerged as a biocompatible, biodegradable, renewable, tunable, and cost-effective bioadsorbent for heavy metal removal from polluted water. Cellulose is rich in hydroxyl groups which can be chemically modified to enhance the reactivity, binding sites, and mechanical strength. Cellulose in nano size, i.e., nanofibers and nanocrystals, offer myriad opportunities to improve the aspect ratio, surface area, pore size, and hydrophilicity for effective adsorption. In this review, chemical and physical modifications in cellulose (functional group transformations, nanocellulose, nanocomposites, hydrogels, aerogels, beads, and membranes) with respect to adsorption of divalent heavy metal ions, in particular, Pb 2+ , Cu 2+ , and Cd 2+ , have been extensively discussed. This review also examines the effect of pH, concentration, temperature, and contact time on the adsorption process. Different mechanisms for heavy metal removal such as ion exchange, electrostatic interactions, complexation, chelation, precipitation, and reduction have been discussed. Theoretical insights into the mechanisms of adsorbent−adsorbate binding are critically examined in the context of modified cellulose. The authors, in the concluding section, summarize potential research directions toward developing sustainable biosorbents.

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Carbohydrate biopolymers, lignin based adsorbents for removal of heavy metals (Cd2+, Pb2+, Zn2+) from wastewater, regeneration and reuse for spent adsorbents including latent fingerprint detection: A review

Cited by 106 publications

References 130 publications

Principais biopolímeros derivados de subprodutos alimentares: uma breve revisão

Principais biopolímeros derivados de subprodutos alimentares: uma breve revisão

Comparison of Remaining Coal-Burning Ash-Based on Cd, Pb, and Hg Concentration at Different Temperatures: A Case Study in Aceh Province

Critical Review of Bioadsorption on Modified Cellulose and Removal of Divalent Heavy Metals (Cd, Pb, and Cu)

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