نتایج جستجو برای: textile industries
تعداد نتایج: 57964 فیلتر نتایج به سال:
Textiles is one the nation’s oldest industries, dating back to be beginning of the American industrial revolution in the 1790s. Despite perceptions of the decline of U.S. textile manufacturing in the face of offshore competition, the industry remains one of the largest, most diverse, and dynamic segments of the U.S. manufacturing sector. This manual represents a comprehensive history of the U.S...
Introduction: IBioaerosols are usually defined as aerosols or particles with microbial, plant or animal origin. Textile industries are of the working environments in witch workers are exposed to bioaerosols. In textile industry, the highest contamination concentration is the belonged to carding step. Since, textile industry in iran is native and a large number of employers are working in this i...
Background and Objectives: wastwaters of textile industries contain large amounts of color can create a lot of pollution. There are different methods for decolorization of textile industries, for example the methods of coagulation, floocculation, chemical oxidation, biological treatment, electrochemical techniques, including ion exchange and other processes. The purpose of this study was to com...
Dyes are threat to aquatic as well as human life. These are often introduced in the water bodies from textile or paper industries with improper treatment. Chemical treatments for dye decolorization are quite costly; another disadvantage is decolorization of these dyes is not complete. The bacterial flora in the effluent of textile industries is continuously exposed to dyes. Few of this might be...
Background and Objective: PACT is an adsorption- degradation process through which slowly or non-biodegradable waste water compounds such as dye can be degraded. This study was carried out to evaluate the efficacy of PACT in removal of dyes form textile industry wastewaters. Materials and Methods: This research was carried out in pilot scale. The pilot design had two parts: an aeration tank wit...
This study was conducted on a comparative basis concerning strategic agility among manufacturing industries in Semnan City, Iran. It uses descriptive and survey method. Research population is consisted of the managers and experts of construction chalk, textile, chemicals and tiles industries in Semnan City. A number of 65 experts and managers of the under study industries were selected via conv...
The today's business environment is so dynamic and complex and this conditions became made even more complicated when economic depression has shaded the economy and the production and service sectors are in the grip of the depression. In the situation the firms are under the depression, to adopt marketing strategies that can help them improve their performance by focusing on optimization opport...
This review paper provides researcherwith a comprehensive information about the Carbon Nano tubes and the catalyst parameters that influences theproduction and morphology of the of Carbon Nano tubes.Carbon nanotubes, referred to as CNTs, are one of the most important materials used in electrical, mechanical, thermal, chemical and textile industries. Since discovery of CNTs in 1991, many scienti...
This paper was aimed to study the efficiency of forward osmosis (FO) process as a new application for treatment wastewater from textile effluent and factors affecting performance process.The draw solutions used were magnesium chloride (MgCl2), aluminum sulphate (Al2 ( SO4)3 .18 H2O), feed reactive red, disperse blue dyes.Experimental work includes operating using thin film composite (TFC) membr...
the importance of textile historical works is not hidden from anyone In the field of preservation and restoration of historical and cultural objects. due to the organic structure of cellulose, Historical cotton fabrics are exposed to spontaneous oxidation and the degradation process will not stop even in an isolated environment. Keeping such sensitive works in the unfavorable conditions of the ...
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