Cellulase in Waste Management Applications

Khan, M. Nuruzzaman; Luna, Ismat Zerin; Islam, Md. Minhajul; Sharmeen, Sadia; Salem, Khandoker Samaher; Rashid, Taslim Ur; Zaman, Asaduz; Haque, Papia; Rahman, Md. Mizanur

doi:10.1016/b978-0-444-63507-5.00021-6

Cited by 22 publications

(18 citation statements)

References 104 publications

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“…Thus, there is a current demand to maintain the standard permissible limit of such elements in industrial effluents before discharge to the environment. Hence, a fair number of physical, chemical, and biological methods have been employed to embark upon the problem of the removal of these materials from wastewater [2][3][4][5][6][7][8]. Compared to many expensive techniques, adsorption is preferred due to its flexibility, compatibility, low cost, and regeneration ability [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

et al. 2020

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In recent years, there has been increasing interest in developing green biocomposite for industrial wastewater treatment. In this study, prawn-shell-derived chitosan (CHT) and kaolinite rich modified clay (MC) were used to fabricate biocomposite beads with different compositions. Prepared composite beads were characterized by FTIR, and XRD, and SEM. The possible application of the beads was evaluated primarily by measuring the adsorption efficiency in standard models of lead (II) and methylene blue (MB) dye solution, and the results show a promising removal efficiency. In addition, the composites were used to remove Cr (VI), Pb (II), and MB from real industrial effluents. From tannery effluent, 50.90% of chromium and 39.50% of lead ions were removed by composites rich in chitosan and 31.50% of MB was removed from textile effluent by a composite rich in clay. Moreover, the composite beads were found to be activated in both acidic and basic media depending on their composition, which gives a scope to their universal application in dye and heavy metal removal from wastewater from various industries.

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Section: Introductionmentioning

confidence: 99%

Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

et al. 2020

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“…About half of the global synthetic dyes are classified as nonbiodegradable and carcinogenic. − During dyeing, a significant portion (30–50%) of dye gets unfixed and thereby is retained in water and needs to be treated. ,, The basic principles of wastewater treatment include separation of suspended and dissolved solids, oxidation of oxygen demanding components, neutralization, and removal of toxic substances as well as removal of unfixed dyes . For TW treatment, various methods such as physical, chemical, and biological process are applied efficiently. ,, Nowadays, adsorption process, a physical method, is regarded as the most effective way for the treatment of TW; − however, disposal, management, and regeneration of the adsorbents accompanied by sludge after the adsorption pose another environmental headache. Also, following these processes, it is hardly possible to recover dyes after removing from wastewater and reusing them further. − …”

Section: Introductionmentioning

confidence: 99%

“…12 For TW treatment, various methods such as physical, chemical, and biological process are applied efficiently. 11,13,14 Nowadays, adsorption process, a physical method, is regarded as the most effective way for the treatment of TW; 15−18 however, disposal, management, and regeneration of the adsorbents accompanied by sludge after the adsorption pose another environmental headache. Also, following these processes, it is hardly possible to recover dyes after removing from wastewater and reusing them further.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Wastewater Treatment via Dye–Surfactant Interaction: A Critical Review

Rashid

Kabir

Biswas

et al. 2020

Ind. Eng. Chem. Res.

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Dye containing industrial effluent streams are a cause of major environmental concerns, especially those which are not easily biodegradable. Many techniques have been developed to remove dyes from the waste stream; however, most of them suffer from a weakness of efficiency and effectiveness when an attempt is made for industrial implementation. A recently developed dye removal method using surfactants offers the benefits of high removal efficiency, ease of waste disposal, scope of efficient recovery, and the use of nontoxic and less harmful reagents. This review aims to contribute to this growing area by summarizing the mechanisms of dye−surfactant interactions and investigating the influence of different process parameters such as pH, concentration of surfactants, dyes, and electrolytes, temperature, etc. on the efficiency of the method. The review also attempts to present future research scopes of these techniques with a critical analysis of industrial applicability.

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“…• Cellulose containing wastes utilized to produce valuable products such as biofuels, chemicals, enzymes, sugars, energy sources for fermentation and improved animal feeds Khan et al, 2016 Detergent…”

Section: Waste Managementmentioning

confidence: 99%

Progress in Ameliorating Beneficial Characteristics of Microbial Cellulases by Genetic Engineering Approaches for Cellulose Saccharification

2020

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Lignocellulosic biomass is a renewable and sustainable energy source. Cellulases are the enzymes that cleave β-1, 4-glycosidic linkages in cellulose to liberate sugars that can be fermented to ethanol, butanol, and other products. Low enzyme activity and yield, and thermostability are, however, some of the limitations posing hurdles in saccharification of lignocellulosic residues. Recent advancements in synthetic and systems biology have generated immense interest in metabolic and genetic engineering that has led to the development of sustainable technology for saccharification of lignocellulosics in the last couple of decades. There have been several attempts in applying genetic engineering in the production of a repertoire of cellulases at a low cost with a high biomass saccharification. A diverse range of cellulases are produced by different microbes, some of which are being engineered to evolve robust cellulases. This review summarizes various successful genetic engineering strategies employed for improving cellulase kinetics and cellulolytic efficiency.

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Cellulase in Waste Management Applications

Cited by 22 publications

References 104 publications

Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

Sustainable Wastewater Treatment via Dye–Surfactant Interaction: A Critical Review

Progress in Ameliorating Beneficial Characteristics of Microbial Cellulases by Genetic Engineering Approaches for Cellulose Saccharification

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