نتایج جستجو برای: reactive dyes
تعداد نتایج: 175119 فیلتر نتایج به سال:
Cellulosic materials like cotton and linen are excellent textile substrates for dyeing with reactive direct dyes. Due to their cellulosic nature, exhibit good affinity towards This is the reason washing rubbing fastness. Chitosan a bio-based polymer gained by deacetylation of chitin. In contrast cellulose, chitosan exhibits also amino functional groups. The purpose this paper evaluate if based ...
conclusions considering the simplicity and efficiency of zero valent iron powder, this method is recommended for removing azo dyes from aqueous environments. results the results of this research showed ph = 3 and contact time = 120 minutes, increasing the zvi dose from 200 to 5000 mg/l in 100 mg/l dye concentration, increased the adsorption efficiency from 36.78% to 97.57%. rr-198 removal follo...
The purpose of this study was to investigate the effect of the reactive dye structure and type of penetrant in ink formulation on paper ink-jet printing. Different type of papers, which have same grammage was printed upon with three commercial reactive dyes, CI Reactive Blue 49 Ink 1, 4, CI Reactive Blue 21 Ink 2, Ink 5 and CI Reactive Blue 19 Ink 3, Ink 6, which are based on different reactive...
The adsorption removal of Triphenylmethane & Xanthene dyes onto a low-cost coal based adsorption (Charfines) and its efficiency in dye colour sorption was compared with activated carbon (F-400). Batch studies were performed and the results revealed that Charfines demonstrated on ability to adsorb the reactive Triphenylmethane & Xanthene dyes. The sorption interaction of reactive dye on to Charf...
Moringa oleifera seeds contain about 40% of highly valued oil due to its wide range of applications, from nutritional issues to cosmetics or biodiesel production. The extraction of Moringa oil generates a waste (65%-75% of seeds weight) which contains a water soluble protein able to be used either in drinking water clarification or wastewater treatment. In this paper, the waste of Moringa oleif...
Background and Objectives: Dyes are an important class of pollutants, which can even be identified by naked eye. Disposal of dyes in precious water resources have been prohibited, however, various treatment technologies are in use. Among various methods adsorption occupies a prominent place in dye removal. Therefore, natural zeolite (clinoptilolite) and acid modified zeolite were used as a low...
Background: Among different pollutants released into the environment, dyes are considered as one of the most dangerous contaminants. In recent years, magnetic nanomaterials have attracted much attention for their dye removal capacity. The aim of this study was to explore the adsorption kinetics of an anionic dye (Reactive Orange 13 (RO)) by NiFe2O4 nanoparticles (NiFe2O4 NPs) under various cond...
در دهه های اخیر، حساسیت های جامعه نسبت به حفاظت از محیط زیست افزایش یافته است.به سبب ضرر کارخانه های شیمیایی روی محیط زیست روز جهانی محیط زیست به وجود آمد .اگر چه واکنش بخشی از قسمتهای جهان شدید تر وبیشتر به مناطق دیگر است .کارخانه های ساخت رنگ قسمت کوچکی از همه ی کارخانه های شیمیایی هستند.رنگ ها و رنگدانه ها بیشترین ماده آشکار هستند.آشکار بودن رنگ می تواند دلیل کمتر رها ساختن آنها به داخل محیط...
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