Biological approaches to the purification of textile wastewater

Elizaryev, Alexey; Elizareva, Elena; Tarakanov, Dmitrii; Fakhertdinova, Alina

doi:10.1051/e3sconf/202338904001

E3S Web of Conf.

2023

DOI: 10.1051/e3sconf/202338904001

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Biological approaches to the purification of textile wastewater

Alexey Elizaryev

Elena Elizareva

Dmitrii Tarakanov

et al.

Abstract: The textile industry is one of the major sources of environmental pollution. This is due to the use of a wide range of dyes, surfactants, oxidizing agents and other chemical reagents in technological processes. Modern dyes are characterized by low biodegradability, resistance to chemical and temperature effects of the environment. Therefore, the development of cost-effective and effective measures to combat such pollution is necessary to protect ecosystems and natural resources. This review is a kind of compil… Show more

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Cited by 3 publications

References 77 publications

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Evaluation of heavy metal accumulation and tolerance in oxalic acid-treated Phragmites australis wetlands for textile effluent remediation

Alghanem,

Alsudays,

Farid

et al. 2024

International Journal of Phytoremediation

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Evaluation of heavy metal accumulation and tolerance in oxalic acid-treated Phragmites australis wetlands for textile effluent remediation

Alghanem,

Alsudays,

Farid

et al. 2024

International Journal of Phytoremediation

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On the Valorization of Olive Oil Pomace: A Sustainable Approach for Methylene Blue Removal from Aqueous Media

Saoudi Hassani,

Duarte,

Brás

et al. 2024

Polymers

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Currently, industrial water pollution represents a significant global challenge, with the potential to adversely impact human health and the integrity of ecosystems. The continuous increase in global consumption has resulted in an exponential rise in the use of dyes, which have become one of the major water pollutants, causing significant environmental impacts. In order to address these concerns, a number of wastewater treatment methods have been developed, with a particular focus on physicochemical approaches, such as adsorption. The objective of this study is to investigate the potential of a bio-based material derived from olive oil pomace (OOP) as an environmentally friendly bio-adsorbent for the removal of methylene blue (MB), a cationic dye commonly found in textile effluents. The biobased material was initially characterized by determining the point of zero charge (pHpzc) and using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Subsequently, a comprehensive analysis was conducted, evaluating the impact of specific physicochemical parameters on MB adsorption, which included a thorough examination of the kinetic and thermodynamic aspects. The adsorption process was characterized using Langmuir, Freundlich, Brunauer-Emmett-Teller (BET), and Dubinin Radushkevich (D-R) isotherms. The results suggest that the equilibrium of adsorption is achieved within ca. 200 min, following pseudo-second-order kinetics. The optimal conditions, including adsorbent mass, temperature, bulk pH, and dye concentration, yielded a maximum adsorption capacity of ca. 93% (i.e., 428 mg g−1) for a pomace concentration of 450 mg L−1. The results suggest a monolayer adsorption process with preferential electrostatic interactions between the dye and the pomace adsorbent. This is supported by the application of Langmuir, BET, Freundlich, and D-R isotherm models. The thermodynamic analysis indicates that the adsorption process is spontaneous and exothermic. This work presents a sustainable solution for mitigating MB contamination in wastewater streams while simultaneously valorizing OOP, an agricultural by-product that presents risks to human health and the environment. In conclusion, this approach offers an innovative ecological alternative to synthetic adsorbents.

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Bacillus Species with Dye-remediation Potential – A Mini Review

Sani

2023

UJMR

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Dyes are either natural or synthetic pigments used as colour for different items including textile materials, leather, cosmetics, plastic, paper, printing ink, food, human hair or paintings. The persisting colour and toxic compounds contained in most dyes leads to serious environmental pollution which is unsuitable for the survival of many ecologically important organisms. A wide range of bacterial species have been reported to effectively remediate dyes of various types and classes. This paper reviews bacterial species from the genus Bacillus with the potentiality to remediate synthetic dyes based on published literatures. Bacillus species remediate dyes basically through biosorption and enzymatic active. The most commonly used Bacillus species are Bacillus subtilis, B. cereus, B. megaterium, B. fusiformis, B. odysseyi, B. mycoides, B. paramycoides, B. pseudomycoides, B. flexus, B. cohnii, B. licheniformis, B. spizizenii, B. algicola, B. vallismortis, B. vietnamensis, B. stratosphericus, B. halodurans, B. albus, B. aryabhattai and B. velezensis. Other researches have also proven that mixed cultures of Bacillus species and species from other microbial genera display significant efficiency in the remediation of various dyes. These species produce enzymes and compounds that aid in the breakdown of dyes, thus, reducing their impact to the environment. The use of the aforementioned Bacillus species in the remediation of other dye related environmental pollutants is highly recommended.

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Biological approaches to the purification of textile wastewater

Cited by 3 publications

References 77 publications

Evaluation of heavy metal accumulation and tolerance in oxalic acid-treated Phragmites australis wetlands for textile effluent remediation

Evaluation of heavy metal accumulation and tolerance in oxalic acid-treated Phragmites australis wetlands for textile effluent remediation

On the Valorization of Olive Oil Pomace: A Sustainable Approach for Methylene Blue Removal from Aqueous Media

Bacillus Species with Dye-remediation Potential – A Mini Review

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