Indian textile industry environment issue ppt, nitra
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The document discusses the Indian textile industry and environmental issues. It provides an overview of the structure and history of the textile industry in India. It describes the various environmental impacts of the textile industry including air and water pollution from dyeing and finishing processes. It also outlines strategies for pollution control, including cleaner production techniques and end-of-pipe wastewater treatments.
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- Treatment schemes include sedimentation and flocculation to remove impurities from wastewater before discharge.
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EPM Mod5@AzDOCUMENTS.in.pdf
This document discusses environmental management and waste auditing in various industries. It describes how environmental management systems can help minimize environmental impacts, amplify resource use, and reduce waste for organizations. Waste audits are discussed as a way to determine operation effectiveness, reduce costs, and measure success. The document then focuses on pollution prevention and control for specific industries like textiles, pulp and paper, tanning, sugar, and others. It outlines the waste streams produced and measures that can be taken to control pollution, including effluent treatment and adopting cleaner technologies.
Environment friendly finishes cii prentation
The document discusses developments in eco-friendly finishes for cotton fabrics and garments. It outlines several finishing techniques that can make cotton more sustainable and environmentally-friendly, such as organic cotton cultivation, naturally dyed cotton, and cross-linking agents that are safer alternatives to formaldehyde. New techniques are also explored, like the NexTec process that can encapsulate fibers to impart multiple functional properties at once, as well as using genetic engineering to develop novel cotton varieties. The conclusion states that applying functional finishes can enhance cotton's qualities while adding value, and many innovative ideas for more sustainable textile processing are currently being explored.
Environment friendly finishes cii prentation
The document discusses developments in eco-friendly finishes for cotton fabrics and garments. It outlines several finishing techniques that can make cotton more sustainable and environmentally-friendly, such as organic cotton cultivation, naturally dyed cotton, and cross-linking agents that are safer alternatives to formaldehyde. New finishes are also explored, like breathable water-resistant coatings, bio-finishing using cellulases, antimicrobial treatments, and emerging technologies like Nano encapsulation of fibers. The conclusion states that applying functional finishes can enhance cotton properties while adding value and that new concepts will continue to be developed to create eco-friendly cotton textiles.
Environment friendly finishes cii prentation
The document discusses developments in eco-friendly finishes for cotton fabrics and garments. It outlines several finishing techniques that can make cotton more sustainable and environmentally-friendly, such as organic cotton cultivation, naturally dyed cotton, and cross-linking agents that are safer alternatives to formaldehyde. New finishes are also explored, like breathable water-resistant coatings, bio-finishing using cellulases, antimicrobial treatments, and emerging technologies like Nano encapsulation of fibers. The conclusion states that applying functional finishes can enhance cotton properties while adding value and that new concepts will continue to be developed to create eco-friendly cotton textiles.
Environment friendly finishes cii prentation
The document discusses developments in eco-friendly finishes for cotton fabrics and garments. It outlines several finishing techniques that can make cotton more sustainable and environmentally-friendly, such as organic cotton cultivation, naturally dyed cotton, and cross-linking agents that are safer alternatives to formaldehyde. New techniques are also explored, like the NexTec process that can encapsulate fibers to impart multiple functional properties at once, as well as using genetic engineering to develop novel cotton varieties. The conclusion states that applying functional finishes can enhance cotton's qualities while adding value, and many innovative ideas for more sustainable textile finishing are currently being explored.
Cdn.intechopen.com pdfs wm-29369
This document summarizes the characteristics and polluting effects of textile organic dyes, and procedures for separating and eliminating them from industrial effluents. It discusses that textile dyeing is a major source of organic water pollution worldwide. Textile dyes are recalcitrant and can remain in the environment for long periods. The document outlines the classification and characteristics of natural and synthetic textile dyes. It also describes common textile processing steps that generate large volumes of contaminated wastewater containing dyes, chemicals, and other pollutants. Current treatment methods aim to remove over 70% of contaminants like COD, BOD, dyes before wastewater discharge to meet environmental standards.
Identification and Selection of the Best Industrial Wastewater Treatment Tech...
A bench scale model and treatability study was developed for chemical product “detergents, shampoos, toilet soaps and sanitary paper” industry to study the analysis of waste discharge. The main process lines used in the industry are fabric and home care production unit, soap production unit, and sanitary paper production unit. The main environmental problem of the industry is that the industrial wastewater resulting from the facility is not meeting the limits of the environmental regulations for the discharge of wastewater to the sewer network. Accordingly, the industry has to treat the wastewater prior to its discharge to the wastewater sanitary network. The main objectives of this study are management and control of liquid and solid wastes in the industry as well as selecting the different possible treatment trains for the waste water prior to its discharge to the sewer system in order to protect the environment and to gain benefits as much as possible from the wasted materials and identify opportunities for introducing pollution prevention measures and best method for waste minimization as cleaner production system. The study is taking into account all types of waste production including wastewater and solid waste during the production processes activities. Treatment Procedure is conducted through treatability study using two proposed streams of techniques; biological treatment technique (Anaerobic Treatment) and chemical treatment followed by biological treatment technique (Coagulation followed by Sedimentation). According to the different treatment alternatives conducted through the study, it is proved the biological method is not suitable for this type of waste, as the antifoaming chemicals and enzymes present in the wastewater leads to death of the microorganisms and accordingly the failure of the treatment system. As for the chemical treatment, it provided good results in both industrial wastewater mixed with domestic wastewater, and industrial wastewater alone. It also provided good results when using both ferric chloride and aluminum sulphate. It is concluded that the coagulation and Flocculation process followed by plain sedimentation is the most reliable alternative treatment method for this kind of industry using ferric chloride for the wastewater without domestic wastewater. The removal efficiency reached 72 to 79%, 86 to 96%, 83 to 88% and 86% for COD, TSS, Phosphorous, and Oil and Grease respectively.
Air pollution control
This document presents information on air pollution control strategies. It discusses how rapid industrial development has led to deteriorating air quality worldwide. To address this, there is a need to minimize harmful emissions and introduce solutions to reduce air pollutant concentrations. Common air pollutants from sources like combustion, transportation and agriculture are described. Control strategies aim to adopt cleaner fuels and processes and use air cleaning devices before pollutants escape. Examples of control technologies provided include baghouse filters, biofilters and carbon sequestration. The document also covers air pollution monitoring using bioindicators and biomonitoring of organisms.
Environment impact assessment of textile industry
The document provides an overview of the environmental impacts of the textile industry. It discusses how the industry pollutes water and air through discharge of wastewater containing chemicals and dyes, and emissions from fossil fuel use. Large quantities of solid waste are also generated from textile production. The use of chemicals, water, and energy throughout the manufacturing process contributes significantly to environmental degradation. Overall, the textile industry places a heavy burden on the environment.
IRJET- A Study on Ocean Pollution from Textile Industries
The text summarizes a research paper that studied pollution from textile industries. It finds that textile industries are highly polluting and affect the environment and human health in several ways. Wastewater from textile industries pollutes water bodies with chemicals like chlorine, hydrocarbons, dyes, and heavy metals. This degraded water quality affects ecosystems and can damage soil. Air pollution is also caused by solvent emissions. The microplastics and fibers shed from synthetic fabrics during washing end up polluting oceans. This harms marine life and biodiversity. Proper treatment of industrial wastewater is needed to reduce pollution and promote sustainable development.
Sustainable development of dyeing.
This presentation discusses textile dyeing industries in Bangladesh and their environmental sustainability. It notes that the textile sector is a major part of Bangladesh's economy but that dyeing industries pollute waterways with untreated wastewater. The presentation covers chemical components used in dyeing, health and environmental hazards, more sustainable dyeing methods like using recycled fibers and green chemistry, effluent treatment technologies like common treatment plants, and mitigation measures to reduce pollution impacts. The goal is to increase the sustainability of the important textile dyeing industry in Bangladesh.
Synthetic fibre from corn
The document discusses the development of an eco-friendly synthetic fibre made from corn. It notes that depleting fossil fuels and environmental pollution present future challenges for textile production. A new biodegradable polyester fibre has been developed from corn, which is a renewable resource. This fibre has properties suitable for textiles like silk-like or cotton-like qualities while being biodegradable and addressing issues with non-renewable and polluting traditional synthetic fibres.
Synthetic fibre from corn
The document discusses the development of an eco-friendly synthetic fibre made from corn. It notes that depleting fossil fuels and environmental pollution present future challenges for textile production. Researchers developed a new biodegradable polyester fibre using corn as a renewable raw material. The production process involves milling corn to extract starch, fermenting the starch to produce lactic acid, and polymerizing lactic acid to form polylactic acid fibres. The resulting fibre has properties ranging from silk-like to cotton-like qualities while being biodegradable.
Synthetic fibre from corn
The document discusses the development of an eco-friendly synthetic fibre made from corn. It notes that depleting fossil fuels and environmental pollution present future challenges for textile production. Researchers developed a new biodegradable polyester fibre using corn as a renewable raw material. The fibre is produced through a process involving milling corn starch, fermenting it to lactic acid, producing an intermediate called lactide, and polymerizing lactide into polylactic acid fibres through ring opening polymerization. The resulting fibre has properties including rapid wicking, excellent hand feel and resilience, wrinkle resistance, and UV and stain resistance while being biodegradable.
Similar to Indian textile industry environment issue ppt, nitra (20)
Pollutants,pollution and control in textile industry
Pollutants,pollution and control in textile industry
Identification and Selection of the Best Industrial Wastewater Treatment Tech...
Identification and Selection of the Best Industrial Wastewater Treatment Tech...
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3. digital printing technologies
The document discusses various digital printing technologies, focusing on inkjet printing methods. It describes two main inkjet technologies: continuous inkjet (CIJ) and drop on demand (DOD). CIJ uses a continuous stream of ink broken into droplets through pressure, while DOD only deposits ink droplets when needed in response to digital signals. Common DOD methods are thermal bubble jet and piezoelectric, while CIJ includes single and multiple jet systems using deflection plates or air jets. The document compares the advantages and disadvantages of each technology.
4. essential elements for inkjet printing
This document discusses the essential elements required for inkjet printing of textiles. It outlines the necessary hardware including computers, software, printers, and fabric pre-treatment machines. It also discusses ink requirements including formulations for different fiber types and extended color gamuts. Finally, it addresses challenges in commercializing the technology such as printing speeds and the need for post-treatments, while envisioning future possibilities like mass customization and integration with other technologies.
Dyeing of pet wool blends
This document discusses methods for high temperature dyeing of wool-polyester blends to minimize damage to the wool. It recommends using formaldehyde or similar agents to protect the wool at temperatures up to 120°C. Specific dyeing times and temperatures are provided for different levels of wool protection. One-bath and two-bath dyeing methods are described that allow deep shades while reducing staining of the wool component. Considerations for dye selection, recipes, and procedures are provided to optimize results while minimizing wool degradation.
Dyeing of cotton with vat dyes
This document summarizes the key properties and processes involved in dyeing cotton with vat dyes. Vat dyes are insoluble in water but can be converted to a water-soluble form through a process called vatting, which involves reducing the dye and forming a salt. Cotton is dyed by first converting the vat dye to its soluble form, dyeing the cotton, then reoxidizing the dye inside the fiber. The document outlines the chemical classes of vat dyes and the steps involved in vat dyeing cotton fabric using exhaust or continuous methods.
Dyeing of polyester
The document discusses various methods for dyeing polyester fibers, including:
1) Batch dyeing without carriers involves dyeing at a boil without additives to help penetration.
2) Carrier dyeing uses compounds to swell the fibers and allow deeper dye penetration.
3) High temperature, high pressure (HTHP) dyeing penetrates dye rapidly at 120-130°C without carriers.
4) Continuous thermosol dyeing involves padding, drying, and fixing dye within fibers at 190-220°C.
3. digital printing technologies
The document discusses various digital printing technologies, focusing on inkjet printing methods. It describes two main inkjet technologies: continuous inkjet (CIJ) and drop-on-demand (DOD). CIJ uses a continuous stream of ink broken into droplets through pressure, while DOD only deposits ink droplets when needed in response to digital signals. Common DOD methods are thermal bubble jet and piezoelectric, with the latter providing higher resolution and suitability for wider ranges of inks. The technologies each have advantages and limitations for different applications like textile printing.
93, 94 introduction to digital printing
This document compares and contrasts analog and digital printing technologies. It discusses the advantages and disadvantages of each, such as analog printing being better for mass production while digital is more suitable for variable, personalized, or short print runs. The document also examines factors to consider when choosing a printing method like image quality, production speed, and cost. Additionally, it describes how some systems combine analog and digital to leverage the strengths of both.
4. essential elements for inkjet printing
This document discusses the essential elements required for inkjet printing of textiles. It outlines the necessary hardware including computers, software, printers, and fabric pre-treatment machines. It also discusses ink requirements including formulations for different fiber types and extended color gamuts. Finally, it addresses challenges in commercializing the technology such as printing speeds and the future potential of digital printing for mass customization and integrated production systems.
Digital printing asian dyer extended version)
Digital printing offers several advantages over conventional analog printing methods for textiles. It allows for mass customization and quick turnaround due to minimal press setup times. Digital printing can change color schemes or designs in real time during production. It also produces less waste and has a lower environmental impact than screen printing. However, digital printing has lower throughput than analog methods and higher costs for long runs. It also requires specially coated substrates and has limitations in ink color options and opacity.
Dyeing of polyester
The document discusses various methods for dyeing polyester fibers, including:
1) Batch dyeing without carriers involves dyeing at a boil without additives to help penetration.
2) Carrier dyeing uses compounds to swell the fibers and allow deeper dye penetration.
3) High temperature, high pressure (HTHP) dyeing penetrates dye rapidly at over 120°C without carriers.
4) Continuous thermosol dyeing involves padding, drying, and fixing dye within fibers at 190-220°C.
Dyeing of pet wool blends
This document discusses methods for high temperature dyeing of wool-polyester blends to minimize damage to the wool. It recommends using formaldehyde or similar agents to protect the wool at temperatures up to 120°C. Specific dyeing times and temperatures are provided for different levels of wool protection. One-bath and two-bath dyeing methods are described that allow deep shades while reducing staining of the wool component. Post-treatment and troubleshooting steps are also outlined.
Dyeing of polyamide fibres
This document discusses the dyeing of polyamide fibers like wool, silk, and nylon. It explains the dyeing mechanisms and how the structure of polyamide fibers allows them to be dyed using different dye classes like acid dyes, chrome dyes, and reactive dyes depending on the desired properties like colorfastness. Factors like pH, temperature, and use of leveling agents affect dye uptake and uniformity. Different types of acid dyes provide varying colorfastness and are suitable for different applications depending on those properties.
Indroduction to printing
The document discusses different types of textile printing methods. It begins by distinguishing between dyeing and printing, noting that dyeing results in uniform coloration while printing applies color locally in designs. It then covers various printing styles like direct, resist, and discharge printing. The document concludes by describing common printing methods such as block, stencil, roller, screen, and digital printing.
General composition of print paste
The document summarizes the general composition and essential qualities of print pastes used in textile printing. Print pastes typically contain dyestuffs, thickeners, solvents, humectants, oxidizing agents, and defoaming agents. Thickeners are important for ensuring the print paste sinks into the fabric quickly and adheres properly after printing and drying. Other components like hydroscopic agents and pH controllers help facilitate dye fixation during steam treatment. Proper selection and balance of ingredients is necessary for achieving high quality, well-defined prints on fabrics.
Pigment printing
There are key differences between dye and pigment printing. Pigments have no affinity for fibers and are insoluble in water, requiring a binder to fix them onto fibers. Dyes have affinity for fibers and are water soluble. Pigment printing uses a binder that is an aqueous emulsion copolymer which polymerizes during curing to form a strong film embedding the pigment and adhering it to the fiber. Suitable thickeners for pigment printing are emulsion or synthetic thickeners which do not interact negatively with the binder. Emulsion thickeners are prepared using oil, water, emulsifiers and other agents, while synthetic thickeners are high molecular weight copolymers that thicken when
Indroduction to printing
The document discusses different types of textile printing methods. It distinguishes between dyeing and printing, noting that dyeing results in uniform coloration while printing applies color locally in designs. Printing uses an aqueous medium of high viscosity to prevent color from spreading. Common printing methods described include block, stencil, roller, screen, and digital printing. Resist and discharge styles of printing are also outlined.
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Indian textile industry environment issue ppt, nitra
- 1. INDIAN TEXTILE INDUSTY-ENVIRONMENTAL ISSUES Prof.R.B.CHAVAN DEPT. OF TEXTILE TECHNOLOGY INDIAN INSTITUTE OF TECHNOLOGY HAUZ-KHAS, NEW DELHI
- 3. Decentralized Sector TEXTILE INDUSTRY IN INDIA NATURAL FIBRES / FABRICS MAN-MADE FIBRES / FABRICS Organized Sector (Mills) Spinning Composites Handloom Powerloom Khadi WOOL J UTE SILK COTTON RAYON Cellulose / viscose BLENDED (Synthetic + Natural) SYNTHETIC (Nylon, PET, PAN)
- 19. Input / output analysis of Textile Finishing Processes Textile Auxiliaries Dyes Base chemicals (e.g. acid, Alkali, sodium chloride) Textile Energy Natural Fibres; 10-20 MJ/kg Synthetic Fibres: 5-50 MJ/kg Water 60-360 l/kg textile Polluted Air Water Effluent Waste Sewage sludge: 60-70 g/kg textile Wet Processing (pre-treatment, dyeing, printing, finishing.)