Textile dye removal using experimental wetland ponds planted with common duckweed under semi-natural conditions

YASEEN, DINA A.; SCHOLZ, MIKLAS

doi:10.37190/epe170303

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…Plants can uptake dyes, which are the principal constituent of textile wastewater. Previously, Myriophyllum spicatum and Ceratophyllum demersum species of plants efficiently removed dyes from synthetic textile wastewater [10].…”

Section: Plant Selectionmentioning

confidence: 99%

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Implementation of Floating Treatment Wetlands for Textile Wastewater Management: A Review

et al. 2020

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The textile industry is one of the most chemically intensive industries, and its wastewater is comprised of harmful dyes, pigments, dissolved/suspended solids, and heavy metals. The treatment of textile wastewater has become a necessary task before discharge into the environment. The textile effluent can be treated by conventional methods, however, the limitations of these techniques are high cost, incomplete removal, and production of concentrated sludge. This review illustrates recent knowledge about the application of floating treatment wetlands (FTWs) for remediation of textile wastewater. The FTWs system is a potential alternative technology for textile wastewater treatment. FTWs efficiently removed the dyes, pigments, organic matter, nutrients, heavy metals, and other pollutants from the textile effluent. Plants and bacteria are essential components of FTWs, which contribute to the pollutant removal process through their physical effects and metabolic process. Plants species with extensive roots structure and large biomass are recommended for vegetation on floating mats. The pollutant removal efficiency can be enhanced by the right selection of plants, managing plant coverage, improving aeration, and inoculation by specific bacterial strains. The proper installation and maintenance practices can further enhance the efficiency, sustainability, and aesthetic value of the FTWs. Further research is suggested to develop guidelines for the selection of right plants and bacterial strains for the efficient remediation of textile effluent by FTWs at large scales.

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Section: Plant Selectionmentioning

confidence: 99%

“…Incompletely treated or untreated water is harmful to the environment and other living creatures [9,10]. All types of wastewater should be treated before dumping into open water bodies in order to minimize the spread of water pollution [11].…”

Section: Introductionmentioning

confidence: 99%

Implementation of Floating Treatment Wetlands for Textile Wastewater Management: A Review

et al. 2020

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“…In addition, no long-term study has been found in the literature on the treatment of synthetic wastewater containing azo dyes mixed with chemicals simulating effluents from textile mills using pond systems vegetated with free-floating plants under hydroponic conditions. Although shallow pond systems have been operated for the treatment of dyes mixed with synthetic wastewater for around 10 months under controlled conditions (Yaseen and Scholz 2016) and for more than 1 year under semi-natural conditions (Yaseen and Scholz 2017b), the researchers used low dye and nutrient concentrations to simulate artificial wastewater using plant fertiliser, which does not simulate the textile wastewater chemicals well. Furthermore, only a few publications focus on the long-term treatment of industrial effluents using pond systems.…”

Section: Rational and Noveltymentioning

confidence: 99%

Impact of pH on the Treatment of Artificial Textile Wastewater Containing Azo Dyes Using Pond Systems

Yaseen

Scholz

2019

Int J Environ Res

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Two controlled experiments were operated to evaluate the impact of pH on the treatment efficiency of azo dyes within artificial textile wastewater using ponds as a polishing step. The objectives were to assess the (1) inflow water quality; (2) the presence of Lemna minor and the algae Oedogonium spp. on the dye removal and the outflow water quality; and (3) suitability of applying artificial textile wastewater and the impact of this wastewater and the dye on plants. Findings indicate that the shallow ponds planted with L. minor and/or algae treated the dye Basic Red 46 (BR46) significantly (p < 0.05) higher than the control ponds without any significant (p > 0.05) impact of pH. The potential of L. minor and algae for removal of BR46 was 31% and 25%, respectively. The removal of BR46 was around 89% for ponds planted with L. minor and algae, 58% for algae ponds and 33% for control ponds. Wetlands with L. minor are successful and economic in the complete degradation of BR46 at concentrations of 10 mg L −1 for any pH value between 6 and 9. The removal of ammonium-nitrogen (NH 4-N), nitrate-nitrogen (NO 3-N) and ortho-phosphate-phosphorus (PO 4-P) was higher in planted than in unplanted ponds. The mean outflow values of chemical oxygen demand, NH 4-N, NO 3-N, suspended solids and total dissolved solids were within the limits for safe discharge. The artificial wastewater constituents after dilution (1 part of artificial wastewater to 24 parts of raw water) were suitable to use within the treatment system containing L. minor. Article Highlights • Planted ponds treat Basic Red 46 significantly better than other dyes and controls. • No significant impact for systems at pH values of 6 and 9 regarding dye removal. • Chemical oxygen demand and suspended/dissolved solids outflows were acceptable. • Ammonium-nitrogen and nitrate-nitrogen outflows were below discharge thresholds. • Diluted artificial wastewater and the presence dyes inhibited Lemna minor growth.

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“…According to Yaseen and Scholz (2017), the dye effluents have high levels of color, pH, suspended solids (SS), Chemical oxygen demand (COD), biological oxygen demand (BOD), metals (Sekomo et al, 2012; Sharma et al, 2007), temperature (Dos Santos et al, 2007; Shah et al, 2013), and salts. Therefore, before releasing the appropriate effluent to the receiving water body during the treatment procedures, it is crucial to check and compare these values with the standard concentrations.…”

Section: Introductionmentioning

confidence: 99%

Harnessing the potential of white rot fungi and ligninolytic enzymes for efficient textile dye degradation: A comprehensive review

Kumar,

Pallavi,

Sen

et al. 2024

Water Environment Research

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The contamination of wastewater with textile dyes has emerged as a pressing environmental concern due to its persistent nature and harmful effects on ecosystems. Conventional dye treatment methods have proven inadequate in effectively breaking down complex dye molecules. However, a promising alternative for textile dye degradation lies in the utilization of white rot fungi, renowned for their remarkable lignin‐degrading capabilities. This review provides a comprehensive analysis of the potential of white rot fungi in degrading textile dyes, with a particular focus on their ligninolytic enzymes, specifically examining the roles of lignin peroxidase (LiP), manganese peroxidase (MnP), and laccase in the degradation of lignin and their applications in textile dye degradation. The primary objective of this paper is to elucidate the enzymatic mechanisms involved in dye degradation, with a spotlight on recent research advancements in this field. Additionally, the review explores factors influencing enzyme production, including culture conditions and genetic engineering approaches. The challenges associated with implementing white rot fungi and their ligninolytic enzymes in textile dye degradation processes are also thoroughly examined. Textile dye contamination poses a significant environmental threat due to its resistance to conventional treatment methods. White rot fungi, known for their ligninolytic capabilities, offer an innovative approach to address this issue. The review delves into the intricate mechanisms through which white rot fungi and their enzymes, including LiP, MnP, and laccase, break down complex dye molecules. These enzymes play a pivotal role in lignin degradation, a process that can be adapted for textile dye removal. The review also emphasizes recent developments in this field, shedding light on the latest findings and innovations. It discusses how culture conditions and genetic engineering techniques can influence the production of these crucial enzymes, potentially enhancing their efficiency in textile dye degradation. This highlights the potential for tailored enzyme production to address specific dye contaminants effectively. The paper also confronts the challenges associated with integrating white rot fungi and their ligninolytic enzymes into practical textile dye degradation processes. These challenges encompass issues like scalability, cost‐effectiveness, and regulatory hurdles. By acknowledging these obstacles, the review aims to pave the way for practical and sustainable applications of white rot fungi in wastewater treatment. In conclusion, this comprehensive review offers valuable insights into how white rot fungi and their ligninolytic enzymes can provide a sustainable solution to the urgent problem of textile dye‐contaminated wastewater. It underscores the enzymatic mechanisms at play, recent research breakthroughs, and the potential of genetic engineering to optimize enzyme production. By addressing the challenges of implementation, this review contributes to the ongoing efforts to mitigate the environmental impact of textile dye pollution.Practitioner Points Ligninolytic enzymes from white rot fungi, like LiP, MnP, and laccase, are crucial for degrading textile dyes. Different dyes and enzymatic mechanisms is vital for effective wastewater treatment. Combine white rot fungi‐based strategies with mediator systems, co‐culturing, or sequential treatment approaches to enhance overall degradation efficiency. Emphasize the broader environmental impact of textile dye pollution and position white rot fungi as a promising avenue for contributing to mitigation efforts. This aligns with the overarching goal of sustainable wastewater treatment practices and environmental conservation. Consider scalability, cost‐effectiveness, and regulatory compliance to pave the way for sustainable applications that can effectively mitigate the environmental impact of textile dye pollution.

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Textile dye removal using experimental wetland ponds planted with common duckweed under semi-natural conditions

Cited by 6 publications

References 17 publications

Implementation of Floating Treatment Wetlands for Textile Wastewater Management: A Review

Implementation of Floating Treatment Wetlands for Textile Wastewater Management: A Review

Impact of pH on the Treatment of Artificial Textile Wastewater Containing Azo Dyes Using Pond Systems

Harnessing the potential of white rot fungi and ligninolytic enzymes for efficient textile dye degradation: A comprehensive review

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