Application of Best Available Techniques to Remove Air and Water Pollutants from Textile Dyeing and Finishing in South Korea

Kim, Hyung-Seok; Kang, Phil-Goo; Kim, Eun-Seok; Seo, Kyungae

doi:10.3390/su14042209

Cited by 9 publications

(6 citation statements)

References 10 publications

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“…The volume of waste water disposed of and the chemical load it receives is the major environmental issue in the textile industries, and textile is extremely water demanding (Kim et al, 2022). Efforts have been made to minimize water consumption within the manufacturing processes and, where possible, to reuse them.…”

Section: Smart Environmental Management Practices For Water Consumptionmentioning

confidence: 99%

In-house resource efficiency improvements supplementing the end of pipe treatments in textile SMEs under a circular economy fashion

Kumar

Kamil²,

Ahmad³

et al. 2022

Front. Environ. Sci.

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The choice of cleaner production practices within the supply chain can improve the textile industry's environmental, financial, and operational advantages. The objective of this study is to evaluate smart environmental management practices (SEMPs) for minimizing the pollution load (energy waste, water consumption, wastewater generation, and chemical waste) within the supply chain in five textile production units of Lahore, Faisalabad (Punjab), and Karachi (Sindh) in Pakistan and to assist and get comprehensive knowledge on resource saving through cleaner production techniques. A multi-criteria decisionmaking method was used to identify the possibilities and use for cleaner production and SEMPs. A total of 36 SEMPs have been recorded with three benchmarking levels based on investment and business priority: i) low/no-cost high return, ii) high-cost high return, and iii) medium-cost medium return. After an initial assessment, SEMPs were implemented and post-assessments were conducted after gap of months. It was found that about 1.3 million m 3 of water was saved which constituted up 21% of the total water consumption. Moreover, 34,600 tons of chemicals and 1,441,500 kWh energy were also saved. This resource saving also helped industries save 0.792 million USD. Using the SEMPs proposed in this article, the annual GHG emission was significantly reduced for industries where the potential varied from 200 to 8,500 tons of CO 2 for different industries.

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Section: Smart Environmental Management Practices For Water Consumptionmentioning

confidence: 99%

In-house resource efficiency improvements supplementing the end of pipe treatments in textile SMEs under a circular economy fashion

Kumar

Kamil²,

Ahmad³

et al. 2022

Front. Environ. Sci.

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“…Inhaling them causes a variety of respiratory illnesses [132][133][134]. Table 3 indicates the air emissions released from different textile processes.…”

Section: Impact On Air Emissionsmentioning

confidence: 99%

Synthetic Dyes for Textile Colouration: Process, Factors and Environmental Impact

Islam¹,

Islam²,

Islam³

et al. 2022

Text Leather Rev

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Dyes are substances that enhance the appearance of finished goods by providing uniform colour. Dyeing is the application process of dyes that are fixed in textile fibers. The dyeing process uses various steps, including pre-treatment, desizing, scouring, bleaching, carbonizing, degumming, and mercerization. Water is considered the primary medium for applying dyes and other chemicals for this treatment in the dyeing process. The dyeing process contains many toxic chemicals, metals and non-soluble substances, such as wastewater, which is thrown into the environment. It is noted that, during dyeing , around 50-300 liters of water is required for 1 kg of fiber. On the other hand, 1-2 million liters of water are needed every day for 50,000 meters of daily production. This massive amount of toxic wastewater is highly harmful to the environment, human health, aquatic system, soil, air, water, plants, and animals. This review paper states various dyeing processes with different dyes, including acid dye, direct dye, sulfur dye, reactive dye, vat dye, metal complex dye, azo dye, disperse dye, and basic dye. In contrast, it also describes the influencing factors of dyeing processes and methods. Moreover, this review demonstrates the impacts of textile dyes on the environment (water, soil, air emissions, human health) and illustrates possible remedial actions regarding wastewater.

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“…Moreover, Halepoto et al 7 discussed the use of anaerobic and aerobic processes for treating high and low chemical oxygen demand (COD) textile wastewater, respectively. A staged forward osmosis technique was proposed by Kim et al 8 and Li et al 9 for the simultaneous desalination and concentration of textile wastewater. They recognised water pollution as a major environmental problem related to the textile industry and emphasized using the best possible technology to reduce air and water pollutants from textile dyeing and finishing.…”

Section: Introductionmentioning

confidence: 99%

Green algae Ulva lactuca-derived biochar-sulfur improves the adsorption of methylene blue from water

Shoaib,

Van,

Tran

et al. 2024

Sci Rep

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The present investigation explores the efficacy of green algae Ulva lactuca biochar-sulfur (GABS) modified with H2SO4 and NaHCO3 in adsorbing methylene blue (MB) dye from aqueous solutions. The impact of solution pH, contact duration, GABS dosage, and initial MB dye concentration on the adsorption process are all methodically investigated in this work. To obtain a thorough understanding of the adsorption dynamics, the study makes use of several kinetic models, including pseudo-first order and pseudo-second order models, in addition to isotherm models like Langmuir, Freundlich, Tempkin, and Dubinin–Radushkevich. The findings of the study reveal that the adsorption capacity at equilibrium (qe) reaches 303.78 mg/g for a GABS dose of 0.5 g/L and an initial MB dye concentration of 200 mg/L. Notably, the Langmuir isotherm model consistently fits the experimental data across different GABS doses, suggesting homogeneous adsorption onto a monolayer surface. The potential of GABS as an efficient adsorbent for the extraction of MB dye from aqueous solutions is highlighted by this discovery. The study’s use of kinetic and isotherm models provides a robust framework for understanding the intricacies of MB adsorption onto GABS. By elucidating the impact of various variables on the adsorption process, the research contributes valuable insights that can inform the design of efficient wastewater treatment solutions. The comprehensive analysis presented in this study serves as a solid foundation for further research and development in the field of adsorption-based water treatment technologies.

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Application of Best Available Techniques to Remove Air and Water Pollutants from Textile Dyeing and Finishing in South Korea

Cited by 9 publications

References 10 publications

In-house resource efficiency improvements supplementing the end of pipe treatments in textile SMEs under a circular economy fashion

In-house resource efficiency improvements supplementing the end of pipe treatments in textile SMEs under a circular economy fashion

Synthetic Dyes for Textile Colouration: Process, Factors and Environmental Impact

Green algae Ulva lactuca-derived biochar-sulfur improves the adsorption of methylene blue from water

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