Chromatographic Analysis of Textile Dyes

2018 ◽  
Vol 101 (5) ◽  
pp. 1353-1370 ◽  
Author(s):  
Mihail Simion Beldean-Galea ◽  
Florina-Maria Copaciu ◽  
Maria-Virginia Coman
Keyword(s):  
Textile Industry ◽  
Solid Phase ◽  
Negative Impact ◽  
Human Life ◽  
Textile Dyes ◽  
Animal Origin ◽  
Synthetic Dyes ◽  
Essential Information ◽  
Wide Range ◽  
Natural And Synthetic

Abstract The textile industry uses many raw materials (natural and synthetic dyes and fibers) and different dyeing techniques that can be considered important pollutants with a negative impact on the environment (toxic working conditions, discharged wastewater, and contamination). Although synthetic dyes are intensively used, offer a wide range of colors and hues and properties of adhesion, longevity, and resistance to sunshine and chemical processes, and are cost-effective, they have begun to be restricted by many textile producers because they are nonbiodegradable and have toxic, carcinogenic, and mutagenic effects that generate some imbalances in plant, animal, and human life. Natural dyes of plant and animal origin exhibit very good tolerance to washing, rubbing, and light and are biodegradable and nontoxic; these properties have led to a call for the renewed use of these dyes. Modern analytical techniques (solid-phase extraction, spectrophotometry, HPLC, HPTLC, capillary electrophoresis) with different spectroscopy (UV-Vis, diode-array detection, pulsed amperometric detection) and/or MS/tandem mass spectrometry detectors have an important role in the textile industry in obtaining essential information about dyeing techniques, material origin, historical trade routes of ancient textiles, and environmental pollution. For this purpose, isolation, separation, and quantification methods of natural and synthetic textile dyes from various matrices (ancient and modern fabrics, water, biota, etc.) are presented.

scholarly journals Textile dyeing by dyestuffs of natural origin

2006 ◽  
Vol 60 (5-6) ◽  
pp. 120-128
Author(s):  
Miodrag Smelcerovic ◽  
Dragan Djordjevic ◽  
Mile Novakovic
Keyword(s):  
Natural Products ◽  
Trade Policy ◽  
Textile Industry ◽  
Textile Dyes ◽  
Natural Dyes ◽  
Natural Source ◽  
Synthetic Dyes ◽  
Natural Origin ◽  
Environmental Friendly ◽  
Textile Dyeing

The textile industry is one of the biggest industrial consumers of water especially dye houses which utilize synthetic dyes and other chemicals. Natural dyes are generally environmental friendly and have many advantages over synthetic dyes with respect to production and application. In recent years, there has been an interest in the application of these dyes due to their bio-degradability and higher compatibility with the environment. A review of previous work in the field of applying dyestuffs of natural source as possible textile dyes is given. From an ecological viewpoint, the substitution of chemical dyes by 'natural products' in textile dyeing may be feasible and may represent not only a strategy to reduce risks and pollutants, but also an opportunity for new markets and new businesses which can develop from the inclusion of ecology in trade policy.

scholarly journals Removal of Textile Dyes by Chemically Treated Sawdust of Acacia: Kinetic and Equilibrium Studies

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Hanane Tounsadi ◽  
Yousra Metarfi ◽  
Noureddine Barka ◽  
Mustapha Taleb ◽  
Zakia Rais
Keyword(s):  
Textile Industry ◽  
Freundlich Isotherm ◽  
Physicochemical Characteristics ◽  
Textile Dyes ◽  
Isotherm Models ◽  
Synthetic Dyes ◽  
Equilibrium Studies ◽  
Biosorption Process ◽  
Chemically Treated ◽  
Equilibrium Data

Sawdust of acacia tree has been successfully used to remove textile dyes from wastewater due to its good sorption properties and its good chemical stability. Two materials are prepared by chemical treatment, including acidic and basic sawdust of acacia. The biosorption tests were carried out on two synthetic dyes of textile which are methylene blue (MB) and brilliant blue (BB). Efficient removal of the both dyes has been achieved by the basic treated sawdust acacia. The modeling of biosorption kinetic shows that the biosorption of MB and that of BB are well described by the pseudo-first-order model for both the chemically treated biosorbents. Equilibrium data have also established using Langmuir and Freundlich isotherm models. Langmuir biosorption capacities are 8.13 and 267.04 mg/g onto basic sawdust acacia and 6.19 and 230.76 mg/g onto acidic sawdust acacia, respectively, for BB and MB sorption. A real final effluent of a textile industry was treated by sorption on both biosorbent basis of sawdust acacia. In fact, the kinetic sorption was rapid with a mass ratio of 1 g/L. However, the biosorption process combined with a biological treatment provides a better result through the physicochemical characteristics of the studied effluent.

scholarly journals Design and Production of Smart Wearable Textile Products Using Layered Manufacturing Technology with Photovoltaic Energy

2021 ◽  
Vol 2 (2) ◽  
pp. 1636-1644
Author(s):  
Ilker Ertuna ◽  
Yusuf Güngör ◽  
Fatma Karaoğlu ◽  
Nazlı Dindar ◽  
Uğur Can Topçu ◽  
...  
Keyword(s):  
Textile Industry ◽  
Human Life ◽  
Layered Manufacturing ◽  
Manufacturing Method ◽  
Photovoltaic Energy ◽  
Conductive Additive ◽  
Smart Textile ◽  
Wide Range ◽  
3D Printed ◽  
Textile Products

Smart textiles are used in a wide range of areas, such as defense industry, security, medicine, health, aviation, space sciences, environment, energy, biotechnology, agriculture, food, cosmetics and fashion design. In this study, with the progress of technology in the area of the wearable smart textile industry, 3D manufacturing which has started to take place in the industry as a new manufacturing method or in other words layered manufacturing practices are discessed.  For this purpose, a solar panel was placed in the 3D printed material obtained by FDM method, one of the layered manufacturing methods, and integrated into the textile material and to charge our electronic devices from photovoltaic energy was explained. It is aimed to produce, using the knowledge gained as a result of the study, smart textile products that facilitate human life with 3D printed materials obtained from filaments with conductive additive.

Impact of Textile Dyes on Human Health and Environment

2020 ◽  
pp. 162-169
Author(s):  
Javid Manzoor ◽  
Manoj Sharma
Keyword(s):  
Heavy Metals ◽  
Textile Industry ◽  
Industrial Effluents ◽  
Soil Productivity ◽  
Synthetic Dyes ◽  
Vat Dyes ◽  
Wide Range ◽  
Chromium Compounds ◽  
Main Attraction ◽  
Copper Arsenic

The textile industry is one of the important industries that generates a large amount of industrial effluents. Color is the main attraction of any fabric. Manufacture and use of synthetic dyes for fabric dyeing has therefore become a massive industry. Synthetic dyes have provided a wide range of colorfast, bright hues. However, their toxic nature has become a cause of grave concern to environmentalists. Use of synthetic dyes has an adverse effect on all forms of life. Presence of sulphur, naphthol, vat dyes, nitrates, acetic acid, soaps, enzymes chromium compounds, and heavy metals like copper, arsenic, lead, cadmium, mercury, nickel, and cobalt and certain auxiliary chemicals all collectively make the textile effluent highly toxic. These organic materials react with many disinfectants, especially chlorine, and form byproducts (DBPs) that are often carcinogenic and therefore undesirable. This effluent, if allowed to flow in the fields, clogs the pores of the soil resulting in loss of soil productivity. This chapter gives an overview on the health and environmental impact of dyes.

scholarly journals Experimental Researches Regarding the Ecological Dyeing with Natural Extracts

2014 ◽  
Vol 14 (4) ◽  
pp. 290-298 ◽  
Author(s):  
Ramona Budeanu ◽  
Antonela Curteza ◽  
Cezar Doru Radu
Keyword(s):  
Textile Industry ◽  
Black Tea ◽  
Natural Fibres ◽  
Synthetic Dyes ◽  
Natural Extracts ◽  
Dyeing Process ◽  
Wide Range ◽  
Experimental Researches ◽  
Food Substrate ◽  
Dyes And Pigments

Abstract The concept of ‘environmental awareness’ has recently had a major impact on the textile industry and on the fashion world as well. In this context, the use of natural fibres and the development of natural dyeing processes gradually became important goals of the textile industry. Of all natural textile fibres, hemp is considered to be one of the strongest and most durable. A wide range of natural extracts have been used for natural textile coloration and dyeing. Dyes deriving from natural sources have emerged as an important alternative to synthetic dyes. Ecofriendly, nontoxic, sustainable and renewable natural dyes and pigments have been used for colouring the food substrate, leather, wood, natural fibres and fabrics from the dawn of human history. The purpose of the research is to obtain ecologically coloured fabrics for textiles by using a method of dyeing that relies on natural ingredients extracted from red beet, onion leaves and black tea. The experiments are conducted on three different types of hemp fabrics. This paper presents the results of the studies regarding the dyeing process of hemp fabrics with natural extracts, the colours of the dyed samples inspected with reflectance spectra and the CIE L*a*b* colour space measurements.

scholarly journals Wastewater treatment by coagulatıon wıth countercurrent sludge return

2020 ◽  
Vol 11 (30) ◽  
pp. 162-177
Author(s):  
E.V. Alekseev
Keyword(s):  
Wastewater Treatment ◽  
Textile Industry ◽  
Solid Phase ◽  
Organic Pollutant ◽  
Extraction Process ◽  
Synthetic Dyes ◽  
Separation Processes ◽  
Treatment Processes ◽  
Treatment Conditions ◽  
Series Of Experiments

Industrial wastewater contains pollutants that do not oxidize under the biological wastewater treatment conditions of populated areas. The treatment of wastewater containing persistent organic substances can be effective in its extraction. Using only water treatment separation methods does not provide sufficient efficiency. Significantly better results are obtained by combining the persistent organic pollutant coagulation method with subsequent separation processes. The disadvantage of coagulation is the need to use large doses of reagents and a large number of wastewater treatment processes. The objective of the research was to determine the possibility of reducing the doses of mineral coagulants and related reagents while maintaining sufficient efficiency in the treatment of contaminant water by countercurrent transfer of the solid phase of the sludge to the previous separation stages. . For the experimental investigation, a facility was used, which included a three-section block of sedimentation chambers, equipment for the manufacture and dosage of reagents, devices for pumping sludge and water sampling. The research was carried out in aqueous solutions of contaminants: persistent synthetic dyes used in the textile industry. The concentration of the dye solutions was assumed to be constant, equal to 150 mg / l. Three series of experiments were carried out with different conditions to dose the coagulant and return the hydroxyl mud. The results of the experiments were analyzed using the Langmuir adsorption equation and the graphical constructions of the equilibrium and the lines of work of the contaminant extraction process. Compared to the traditional single-stage coagulation scheme, which includes a single addition of reagents without reusing the sludge, the use of solid-phase countercurrent transfer coagulation schemes was found, based on the research results. of sludge conductors gives a significant reduction in the number of reagents consumed and, consequently, a decrease in the amount of sludge removed.

scholarly journals Citrinin in Foods and Supplements: A Review of Occurrence and Analytical Methodologies

Foods ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 14
Author(s):  
Liliana J. G. Silva ◽  
André M. P. T. Pereira ◽  
Angelina Pena ◽  
Celeste M. Lino
Keyword(s):  
High Performance ◽  
Solid Phase ◽  
Mammalian Species ◽  
High Sensitivity ◽  
Extraction Methods ◽  
Animal Origin ◽  
Red Rice ◽  
Food Contaminants ◽  
Detection Techniques ◽  
Wide Range

Citrinin (CIT) deserves attention due to its known toxic effects in mammalian species and its widespread occurrence in food commodities, often along with ochratoxin A, another nephrotoxic mycotoxin. Human exposure, a key element in assessing risk related to food contaminants, depends upon mycotoxin contamination levels in food and on food consumption. Commercial supplements, commonly designated as red rice, usually used in daily diets in Asiatic countries due to their medicinal properties, may pose a health problem as a result of high CIT levels. In addition to the worldwide occurrence of CIT in foods and supplements, a wide range of several analytical and detection techniques with high sensitivity, used for evaluation of CIT, are reviewed and discussed in this manuscript. This review addresses the scientific literature regarding the presence of CIT in foods of either vegetable or animal origin, as well as in supplements. On what concerns analytical methodologies, sample extraction methods, such as shaking extraction and ultrasonic assisted extraction (UAE), clean-up methods, such as liquid-liquid extraction (LLE), solid phase extraction (SPE) and Quick, Easy, Cheap, Effective, Rugged and Safe (QuECHERS), and detection and quantification methods, such as thin layer chromatography (TLC), high performance liquid chromatography (HPLC), capillary electrophoresis (CE), biosensors, and ELISA, are also reviewed.

scholarly journals DEWAN PENDIDIKAN DI TENGAH PUSARAN COVID-19

AL MURABBI ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 69-81
Author(s):  
Kholilur Rahman
Keyword(s):  
Local Governments ◽  
Negative Impact ◽  
Human Life ◽  
Quality Of Education ◽  
Board Of Education ◽  
Education Policies ◽  
Wide Range ◽  
Life Education ◽  
The Impact

It is probably almost a consensus of experts that the Covid-19 pandemic is an undiscovered virus, and its negative impact touches almost the entire joints of human life; Social, economic, banking, tourism, and education. The impact of the life joints mentioned at the beginning may be overcome by certain stimuli and within a certain period of time can be recovered. But the impact that touches the joints of the last Life (education), especially related to the quality of education, the Resolution requires "collective ijtihad" with a wide range of perspective, and must be sustained by the comprehensive stimulus. Given the whole quality of the joints of human life is determined by the quality of education. In order to collective ijtihad against the impact of the Covid-19 in this field of education, there is an honorable institution that loses its "fangs". The Board of Education (especially the District Education Council) as a representation of the community in the field of education should present contribute its role to help the heavy burden of society in education, especially in the midst of the Covid-19 vortex and its impacts, The Board of Education must be able to attend: (a) as a advisory agency for local governments in the determination of the implementation of education policies, especially during the pandemic Covid-19 period; (b) As supporting agency, whether financial, thinking or energy for exclusivity in the organizing of education; (c) As a controlling agency for the education policy of the local government; and (d) as a mediator agency on policies implemented by exclusivity and legislative

Analysis of Aromatic Amines in Industrial Wastewater by Capillary Gas Chromatography-Mass Spectrometry

2000 ◽  
Vol 35 (2) ◽  
pp. 245-262 ◽  
Author(s):  
Francis I. Onuska ◽  
Ken A. Terry ◽  
R. James Maguire
Keyword(s):  
Gas Chromatography ◽  
Aromatic Amines ◽  
Methylene Chloride ◽  
Solid Phase ◽  
Stationary Phases ◽  
Gas Chromatography Mass Spectrometry ◽  
Substituted Anilines ◽  
Environmental Media ◽  
Solid Phase Extraction Cartridge ◽  
Wide Range

Abstract The analysis of aromatic amines, particularly benzidines, at trace levels in environmental media has been difficult because of the lack of suitable deactivated capillary column stationary phases for gas chromatography. This report describes the use of an improved type of column as well as a method for the analysis of anilines and benzidines in water, wastewater and sewage samples. Extraction procedures are applicable to a wide range of compounds that are effectively partitioned from an aqueous matrix into methylene chloride, or onto a solid-phase extraction cartridge. The extracted analytes are also amenable to separation on a capillary gas chromatographic column and transferable to the mass spectrometer. These contaminants are converted to their N-trifluoroacetyl derivatives. Aniline and some substituted anilines, and 3,3’-dichlorobenzidine and benzidine were determined in 24-h composite industrial water, wastewater, primary sludge and final effluent samples at concentrations from 0.03 up to 2760 µg/L.

Recent Application of Polystyrene-supported Triphenylphosphine in Solid-Phase Organic Synthesis

2019 ◽  
Vol 23 (6) ◽  
pp. 643-678
Author(s):  
Lalthazuala Rokhum ◽  
Ghanashyam Bez
Keyword(s):  
Organic Synthesis ◽  
Combinatorial Chemistry ◽  
Solid Phase ◽  
Recent Application ◽  
Organic Transformations ◽  
Solid Phase Organic Synthesis ◽  
Wide Range ◽  
Fast Development ◽  
Polymer Supported

Recent years have witnessed a fast development of solid phase synthetic pathways, a variety of solid-supported reagent and its applications in diverse synthetic strategies and pharmaceutical applicability’s. Polymer-supported triphenylphosphine is getting a lot of applications owing to the speed and simplicity in the process. Furthermore, ease of recyclability and reuse of polymer-supported triphenylphosphine added its advantages. This review covers a wide range of useful organic transformations which are accomplished using cross-linked polystyrene-supported triphenylphosphine with the aim of giving renewed interest in the field of organic and medicinal-combinatorial chemistry.

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