نتایج جستجو برای: dye removal

تعداد نتایج: 178553  

In this paper, dye removal ability of the surface modified nanoparticle SMN copper ferrite from single and quaternary systems was investigated. Acid Blue 92 AB92, Direct Green 6 DG6, Direct Red 23 DR23 and Direct Red 80 DR80 were used as model compounds. The effect of surfactant concentration, adsorbent dosage, dye concentration and pH on dye removal was evaluated. The adsorption isotherm and k...

Journal: :محیط شناسی 0
مسعود کوشا کارشناس ارشد، دانشکدۀ منابع طبیعی، دانشگاه صنعتی اصفهان امیدوار فرهادیان استادیار دانشکدۀ منابع طبیعی، دانشگاه صنعتی اصفهان سالار درافشان استادیار دانشکدۀ منابع طبیعی، دانشگاه صنعتی اصفهان نصرالله محبوبی صوفیانی استاد دانشکدۀ منابع طبیعی، دانشگاه صنعتی اصفهان

introduction malachite green (mg) has been used as a food coloring agent, food additive, medical disinfectant as well as a dye in silk, wool, jute, leather, cotton, paper, and acrylic industries. it is also extensively used as a topical fungicide and ectoparasiticide in aquaculture industries throughout the world. the findings reveal that this dye has now become one of the most controversial co...

ابراهیمی, معصومه, بلارک, داود, ززولی, محمد علی , مهدوی, یوسف, یزدانی, جمشید,

Introduction: Industrial wastewater is one of the major environmental pollutants. Discharge of the colorful industrial effluent into the receptive waters leads to eutrophication and has mutagenic and carcinogenic properties. Therefore, the aim of this study was to investigate the removal of acid blue113 from aqueous solutions by Canola (Brassica Napus) waste. Materials and Methods: This is an ...

ژورنال: طلوع بهداشت یزد 2012
احرامپوش, محمد حسن , رحیمی, سمیه , غنی زاده, قادر , قانعیان, محمد تقی ,

Background: Dyes have complicated structure, are usually toxic and resistant to biological treatment which entere into environment by industrial waste streams. The aim of this study was the removal of reactive red 198 dye (RR 198) by photolysis (UV) and photocatalytical (TiO2/UVC) processes. This study was conducted to investigate the effects of dye concentration, pH, TiO2 dose, and contact tim...

ژورنال: سلامت و محیط زیست 2013
داوری, بهروز, رضایی, رضا, محوی, امیرحسین, ملکی, افشین,

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...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
adams udoji itodo funke wosilat abdulrahman lawal gusau hassan shehu ahmad maigandi ugbede onojah happiness

phosphoric acid (h3po4) and zinc chloride (zncl2) catalyzed shea nut shells, subjected to a one way activation scheme was employed to study the adsorption kinetics and mode of diffusion of industrial dye uptake. thermodynamics data obtained in this study indicate that the sorption of dye spontaneously increases with time and decreases after equilibration was reached. the adsorption follows the ...

Journal: :Environmental science & technology 2004
P Pandit S Basu

Several methods (e.g., UV/H2O2 oxidation, adsorption, flocculation-precipitation) are normally employed to remove dye from water. A new technique based on liquid/liquid extraction using reverse micelles is proposed whereby recovery of solvent and reuse of dye is possible. Experiments were conducted by mixing a known quantity of dye in aqueous phase and solvent-containing surfactants in a simple...

ذوالقدر نسب, حسن, شعبانلو, امیر, صید محمدی, عبدالمطلب, لیلی, مصطفی, مهرعلی پور, جمال,

Background and purpose: In Electro/Fe2+/persulfate process, persulfate radicals are produced as powerful oxidizing agents which increase the efficiency of this process. The aim of this study was to investigate the efficiency removal of COD, TSS and dye from industrial effluent in Buali industrial area in Hamedan. Materials and methods: In this study, the batch experiment was performed using a ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
mohammad reza samarghandi mansur zarrabi mohammad noori sepehr reza panahi maryam foroghi

in this work, removal of c. i. acid red 14 was investigated by pumice stone as a low cost adsorbent. various parameters such as initial dye solution, contact time and ph were studied. removal of dye were increased by increasing of contact time and initial dye solution and deceased by increasing of ph. three isotherm models were studied. linear and non-linear regression analyses were used for de...

Journal: :jundishapur journal of health sciences 0
seyyed javad jaafari department of environmental health engineering, school of health, hamadan university of medical science, hamadan, ir iran reza shokouhi department of environmental health engineering, school of health, hamadan university of medical science, hamadan, ir iran edris hossein zadeh department of environmental health engineering, school of health, lorestan university of medical science,khorramabad, ir iran mahmoud taghavi department of environmental health engineering, mazandaran university of medical science, sari, ir iran rasoul arezoumandi department of environmental health engineering, school of health, hamadan university of medical science, hamadan, ir iran rasoul arezoumandi department of environmental health engineering, school of health, hamadan university of medical science, hamadan, ir iran

industrial wastewater included the dyes one of the important sources of environmental pollution that founded in loom wastewater which are harmful for human health and environment. therefore, the purpose of this research was investigated removal of rb5 dye from aqueous solution by using of adsorption onto activated red mud as an cheap adsorbent. this research was experimental- laboratorial study...

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