A critical review on the treatment of dye-containing wastewater: Ecotoxicological and health concerns of textile dyes and possible remediation approaches for environmental safety

Al-Tohamy, Rania; Ali, Sameh S.; Li, Fanghua; Okasha, Kamal; Mahmoud, Yehia A.-G.; Elsamahy, Tamer; Jiao, Haixin; Fu, Yinyi; Sun, Jianzhong

doi:10.1016/j.ecoenv.2021.113160

Cited by 1,549 publications

(519 citation statements)

References 193 publications

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“…Textile dyes have a high molecular stability when subjected to chemical oxidation and light degradation. Furthermore, they may have biomagnification, toxicity, and even carcinogenic properties, all of which can be harmful to human health [ 15 , 150 , 151 ]. As a result, textile wastewaters are a source of concern and should be carefully treated to mitigate their environmental impact [ 152 – 155 ].…”

Section: Azo Dyes As Aromatic Textile Wastewater Pollutantsmentioning

confidence: 99%

“…Numerous chemical and physical techniques, including Fenton oxidation, membrane filtration, ozonation, coagulation/flocculation, electrochemical treatment, advanced oxidation process, and adsorption, were investigated under this scope for the treatment of dye-containing textile wastewater [ 15 , 156 ]. However, these methods are frequently not preferred due to a number of drawbacks, including toxic byproducts and sludge production, high costs, extensive infrastructure requirements, and limited applicability [ 15 , 157 ]. Furthermore, the presence of high temperatures, chemical oxygen demand (COD), biological oxygen demand (BOD), pH, color, and heavy metals frequently impedes their use in textile wastewater treatment [ 158 ].…”

Section: Azo Dyes As Aromatic Textile Wastewater Pollutantsmentioning

confidence: 99%

“…Nonetheless, reusing treated effluent water can constitute a major health risk due to contamination from microbiological contaminants and organic matter. To date, biological treatment is widely recognized as one of the most environmentally friendly and cost-effective methods of removing toxins from wastewater [ 15 , 160 ]. Notably, the use of oleaginous microorganisms in biological wastewater treatment is far more appealing than traditional aerobic and anaerobic digestion technologies, which necessitate sophisticated systems [ 161 ].…”

Section: Azo Dyes As Aromatic Textile Wastewater Pollutantsmentioning

confidence: 99%

“…The AAs produced by the bacterial and yeast azo reductases upon azo bond cleavage are most likely the cause of the azo metabolites' more adverse effects [ 25 , 26 , 173 ]. Water coloring is caused by the release of textile effluents, particularly red, orange, and yellow azo dyes, into the water, thereby reducing sunlight penetration and thus plant photosynthesis and growth rate [ 15 ]. Additionally, azo dyes dispersed in water provide an abundant substrate for bacterial populations and aquatic microorganisms.…”

Section: Azo Dye Classification and Toxicitymentioning

confidence: 99%

“…The annual global production of aromatic wastes is estimated to be around fifty million tons, and this figure is expected to rise significantly in the coming years [ 11 ]. Simultaneously, lignin and its associated environmental pollutants with similar chemical structures, such as textile dye wastewater, constitute a significant aromatic pollutants on earth [ 14 , 15 ]. Processing lignin is difficult due to its variability in composition and bonding structure.…”

Section: Introductionmentioning

confidence: 99%

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Could termites be hiding a goldmine of obscure yet promising yeasts for energy crisis solutions based on aromatic wastes? A critical state-of-the-art review

Ali

Al-Tohamy

Mohamed

et al. 2022

Biotechnol Biofuels

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Biodiesel is a renewable fuel that can be produced from a range of organic and renewable feedstock including fresh or vegetable oils, animal fats, and oilseed plants. In recent years, the lignin-based aromatic wastes, such as various aromatic waste polymers from agriculture, or organic dye wastewater from textile industry, have attracted much attention in academia, which can be uniquely selected as a potential renewable feedstock for biodiesel product converted by yeast cell factory technology. This current investigation indicated that the highest percentage of lipid accumulation can be achieved as high as 47.25% by an oleaginous yeast strain, Meyerozyma caribbica SSA1654, isolated from a wood-feeding termite gut system, where its synthetic oil conversion ability can reach up to 0.08 (g/l/h) and the fatty acid composition in yeast cells represents over 95% of total fatty acids that are similar to that of vegetable oils. Clearly, the use of oleaginous yeasts, isolated from wood-feeding termites, for synthesizing lipids from aromatics is a clean, efficient, and competitive path to achieve "a sustainable development" towards biodiesel production. However, the lacking of potent oleaginous yeasts to transform lipids from various aromatics, and an unknown metabolic regulation mechanism presented in the natural oleaginous yeast cells are the fundamental challenge we have to face for a potential cell factory development. Under this scope, this review has proposed a novel concept and approach strategy in utilization of oleaginous yeasts as the cell factory to convert aromatic wastes to lipids as the substrate for biodiesel transformation. Therefore, screening robust oleaginous yeast strain(s) from wood-feeding termite gut system with a set of the desirable specific tolerance characteristics is essential. In addition, to reconstruct a desirable metabolic pathway/network to maximize the lipid transformation and accumulation rate from the aromatic wastes with the applications of various “omics” technologies or a synthetic biology approach, where the work agenda will also include to analyze the genome characteristics, to develop a new base mutation gene editing technology, as well as to clarify the influence of the insertion position of aromatic compounds and other biosynthetic pathways in the industrial chassis genome on the expressional level and genome stability. With these unique designs running with a set of the advanced biotech approaches, a novel metabolic pathway using robust oleaginous yeast developed as a cell factory concept can be potentially constructed, integrated and optimized, suggesting that the hypothesis we proposed in utilizing aromatic wastes as a feedstock towards biodiesel product is technically promising and potentially applicable in the near future.

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Section: Azo Dyes As Aromatic Textile Wastewater Pollutantsmentioning

confidence: 99%

Section: Azo Dyes As Aromatic Textile Wastewater Pollutantsmentioning

confidence: 99%

Section: Azo Dyes As Aromatic Textile Wastewater Pollutantsmentioning

confidence: 99%

Section: Azo Dye Classification and Toxicitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Could termites be hiding a goldmine of obscure yet promising yeasts for energy crisis solutions based on aromatic wastes? A critical state-of-the-art review

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Mohamed

et al. 2022

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Bioremediation of Water Polluted with Dyes from Textile Industries Using Microalgae and Cultivation of Microalgae for Multiple Biorefineries

Chhandama,

Chetia,

Satyan

et al. 2024

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Bimetallic FeNi Alloy Nanoparticles Grown on Graphene for Efficient Removal of Congo Red From Aqueous Solution

Zou

Zhu

Yuan

2022

Advanced Sustainable Systems

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Nano zero‐valent iron (nZVI) is an effective material for dye wastewater treatment, but excessive agglomeration and oxidation greatly limit its application. Herein, graphene (GR) supported FeNi bimetallic nanoparticles (FeNi@GR) are prepared by alloying and carrier supported dispersion for efficient removal of azo dyes from water. Not only can it effectively solve the problem of excessive agglomeration and oxidation of nZVI, but also the synergistic effect of bimetallic coordination formation and the excellent electron transfer ability of graphene are beneficial to enhance the reactivity of FeNi@GR. The optimal FeNi@GR is prepared by adjusting the content of GR and the removal of Congo red (CR) by FeNi@GR‐10% reached 625 mg g−1 within 150 min at pH = 7.0. Higher temperature and lower pH favor the removal of CR azo dye. The action mechanisms of FeNi@GR presumably involve the transfer of active hydrogen atoms and the transfer of electrons generated by Fe0 and Ni0. Besides, the saturation magnetization (Ms) of FeNi@GR is 68.15 emu g−1, which has excellent magnetic response performance. This work not only provides a simple and efficient method to stabilize nZVI, but also reveals that using FeNi@GR is a promising approach for the remediation of water pollution.

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A critical review on the treatment of dye-containing wastewater: Ecotoxicological and health concerns of textile dyes and possible remediation approaches for environmental safety

Cited by 1,549 publications

References 193 publications

Could termites be hiding a goldmine of obscure yet promising yeasts for energy crisis solutions based on aromatic wastes? A critical state-of-the-art review

Could termites be hiding a goldmine of obscure yet promising yeasts for energy crisis solutions based on aromatic wastes? A critical state-of-the-art review

Bioremediation of Water Polluted with Dyes from Textile Industries Using Microalgae and Cultivation of Microalgae for Multiple Biorefineries

Bimetallic FeNi Alloy Nanoparticles Grown on Graphene for Efficient Removal of Congo Red From Aqueous Solution

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