Sustainable Washing for Denim Garments by Enzymatic Treatment

Khan, Mohammed Abdullah; Mondal, Ibrahim H.; Uddin, Zulhash

doi:10.3329/jce.v27i1.15854

Cited by 30 publications

(11 citation statements)

References 4 publications

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“…In the case of chemical washing involving the use of sodium hypochlorite or potassium permanganate, the effluent contains chlorinated organic substances which cause severe impacts to the environment, and the bleaching chemicals are harmful to human health. Acid wash uses both pumice stone and chemicals, namely, sodium hypochlorite or potassium permanganate, and it does not require water but leads to pollution through the effluent having pumice dust and residual manganese which are hazardous [11][12].…”

Section: Environmental Impacts Of Denim Processingmentioning

confidence: 99%

Understanding Denim Recycling: A Quantitative Study with Lifecycle Assessment Methodology

Akı¹,

Candan²,

Nergis³

et al. 2020

Waste in Textile and Leather Sectors

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Global denim jeans market size is over 70 billion dollars today, and it continues to grow with a compound annual growth rate (CAGR) of 2%. As a reflection of this annual growth, systems' waste generation also increases. Textile waste including denim accounts for nearly 5% of all landfill space, according to the Environmental Protection Agency (EPA). Today, efficient recycling technologies are essential to revive the waste generated. Recycling technologies potentially represent a new way to engineer products. This book chapter analyzes these different recycling technologies and their advantages and challenges and concentrates on denim fabrics produced with recycled content. Life cycle assessment (LCA) methodology is adopted to quantify and compare the environmental impact of recycled denim fabrics. The chapter concludes the challenges and the future of recycling, creating systems, and engineering of waste. The view of seeing waste as a raw material potentially represents a new opportunity to design circular systems.

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Section: Environmental Impacts Of Denim Processingmentioning

confidence: 99%

Understanding Denim Recycling: A Quantitative Study with Lifecycle Assessment Methodology

Akı¹,

Candan²,

Nergis³

et al. 2020

Waste in Textile and Leather Sectors

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“…plastic, rubber in Portland is the best abrasive (12) . Following this loop, concern increasing day by day in the industry, and the use of environmentally friendly, nontoxic, fully-biodegradable enzymes have been increased to a great extent (2,5,13) .…”

Section: Introductionmentioning

confidence: 99%

Sustainable denim fabric washing with post-used rubber shoe sole: An eco-friendly alternative of Pumice stone

Alam¹,

Islam²,

Rahman³

et al. 2020

IJST

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Background/Objective: Denim fabric is the most versatile dress material and acclaimed the most popular among the young generations due to its trendy looks. Since stone is being vastly used to improve the softness and comfort feeling along with fading effects, but bearing some problems. For instance, stone leads to deterioration of fabric strength, machine wear, and tear, grit deposition in the effluent plant, increasing labor cost to separate the stone powder from the pockets, and also harmful for the expensive laundry machine, etc. On the contrary, post-used rubber shoe soles are thrown or burnt which leads to ozone depletion. Therefore, this study was carried out to mitigate both the existing problems of stone washing and also this endeavor was done to find a suitable alternative of pumice stone. Methods: Washing was continued with both stones, collected rubber shoe sole against enzyme, acid, and bleaching agent. Eventually, washed garments have been tested and compared with the unwashed regular ones, based on visual appearance, degree of shade change, tensile strength, tear strength, abrasion resistance, and weight per unit area, and crimp interchange. Findings: Result reveals the satisfactory values, but the degree of shade changes against acid has poor value due to not having the absorption ability of potassium permanganate (KMnO 4). Also, the result tells the noise intensity is much lower (68-72 dB) compared to stonewash (89-90 dB). Introducing the aforementioned alternative in denim washing, it shows the perfect results rather than stone one without compromising the trendy looks.

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“…This makes cellulase research imperative in Bangladesh 8 . Also, celluloses have a high demand in the textile industry for sustainable washing as a finishing treatment in the denim garments in order to make them comfortable to wear 9 . Thus, cellulases are used in wide range of industries such as agriculture, detergents, fermentation, food, pulp and paper, textile and others.…”

Section: Introductionmentioning

confidence: 99%

Isolation of Cellulolytic Bacteria from Soil, Identification by 16S rRNA Gene Sequencing and Characterization of Cellulase

Mahjabeen

Khan

Choudhury

et al. 2018

Bangla. J. Microbiol.

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Microbial Cellulases have an escalating demand in many industries and constitute a major group of the industrial enzymes. It has attracted the attention of many researchers because of its tremendous industrial applications including textile industry, pulp, and paper industry, laundry and detergent industry, food and animal feed industry. The present study pursues to unfold a novel cellulase that can overcome existing challenges in biorefineries as well as to reduce biofuel production cost. Therefore, soil from a dairy farm was screened for potent cellulase producers on carboxymethylcellulose agar. Out of 68 isolates, 31 expressed cellulase activity. The best isolate so far had an extracellular crude enzyme activity of 0.167 U/ml and specific activity of 0.333 U/mg. The cell morphology, cultural characteristics, and biochemical tests presumptively identified it to belong to the genus Bacillus. Molecular analysis using 16S rRNA gene of the isolate indicated it to be Bacillus subtilis. The optimum pH and temperature for the activity of the crude enzyme were determined to be 5 and 65°C respectively. Bangladesh J Microbiol, Volume 33, Number 1-2, June-Dec 2016, pp 17-22

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Sustainable Washing for Denim Garments by Enzymatic Treatment

Abstract: Abstract

Cited by 30 publications

References 4 publications

Understanding Denim Recycling: A Quantitative Study with Lifecycle Assessment Methodology

Understanding Denim Recycling: A Quantitative Study with Lifecycle Assessment Methodology

Sustainable denim fabric washing with post-used rubber shoe sole: An eco-friendly alternative of Pumice stone

Isolation of Cellulolytic Bacteria from Soil, Identification by 16S rRNA Gene Sequencing and Characterization of Cellulase

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