نتایج جستجو برای: c0 represented initial dye concentration

تعداد نتایج: 871353  

Journal: :journal of health sciences and surveillance system 0
mansooreh dehghani research center for health sciences, department of environmental health, school of health, shiraz university of medical sciences, shiraz, iran; mahshid ghadami department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, iran talat gholami department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, iran marzieh ansari shiri department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, iran zahra elhameyan department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, iran mohammad reza javaheri department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, iran

background: recently, there has been a great concern about the consumption of dyes because of their toxicity, mutagenicity, carcinogenicity, and persistence in the aquatic environment. reactive dyes are widely used in textile industry. advanced oxidation processes are one of the cost-effective methods for the removal of these dyes. the main aims of this study were determining the feasibility of...

Journal: :journal of the iranian chemical research 0
nima razzaghi asl faculty of pharmacy, department of medicinal chemistry, shiraz university of medical sciences, shiraz, iran mahmood abassi faculty of chemistry, bu-ali sina university, hamadan, iran

low-cost grapefruit peel (agricultural waste) was used for removal of reactive blue19 dye fromaqueous solutions. the process was studied as a function of contact time, initial dye concentration andph. adsorption process was attained to the equilibrium within 45 min for initial dye concentrations of 50,75, and 100 mg l-1. an acidic medium was the optimum condition for adsorption of dye at roomte...

Introduction  Dyes and heavy metals are hazardous pollutants often found together in wastewaters of textile industries; these pollutants have a significant ecological impact on the ecosystem and can modify the physical and chemical properties of water affecting the aquatic flora and fauna. Methods  This fundamental-applied study was done on lab scale. Effects of various facto...

Journal: :iranian journal of health sciences 0
ahmad reza yari department of environmental health engineering, research center for environmental pollutants, qom university of medical sciences, qom, iran gharib majidi department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran mehdi tanhaye reshvanloo department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran mohsen ansari department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran shahram nazari department of environmental health engineering, school of khalkhal medical, ardabil university of medical sciences, ardabil, iran meysam emami kale sar department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran

background and purpose: generated dye wastewater by the textile industry is usually toxic, non-biodegradable and resistant in the environment. eggshell is one of the inexpensive material and for the reason the vesicular structures can be used as a proper adsorbent for pollutants removal. the aim of this study is to investigate the efficiency of eggshell for removal of acid orange 2 dye from aqu...

Journal: :iranian journal of health sciences 0
mansooreh dehghani department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, iran razieh shabestari amir anushiravani narges shamsedini

abstract background and purpose:the main objectives of this research were to evaluating the application of electrocoagulation process for 198 dye from the aqueous phase and determining the optimum operating conditions to the dye removal using aluminum and iron electrodes. materials and methods:the present study was conducted in bench-scale. the spectrophotometer dr 5000 was used to determine th...

Ahmad Reza Yari, Gharib Majidi, Maryam Sadat Tabatabai-Majd, Mehdi Tanhaye Reshvanloo, Meysam Emami Kale Sar, Mohammad Khazaei, Mohsen ansari, Shahram Nazari,

Background and purpose: Generated dye wastewater by the textile industry is usually toxic, non-biodegradable and resistant in the environment. Eggshell is one of the inexpensive material and for the reason the vesicular structures can be used as a proper adsorbent for pollutants removal. The aim of this study is to investigate the efficiency of eggshell for removal of acid orange 2 dye from aqu...

Background: The purpose of the present study was to assess the efficiency of ultrasound/hydrogen peroxide processes and ultrasound/hydrogen peroxide/ZnO nanoparticles in the removal of blue cat 41 dye from aqueous solutions. Methods: ZnO nanoparticles were prepared using the hydrothermal method. Variables including pH, concentration of ZnO nanoparticles, initial dye concentration, concentratio...

ژورنال: سلامت و محیط زیست 2014
آیتی, بیتا, پنبه کاربیشه, معصومه,

Background and Objective: Most of the dyes used in the textile industries can be toxic and carcinogenic. One of the suitable technologies to remove them is advanced oxidation processes. The main purpose of this study was to investigate the positive effect of adding oxidant Na2S2O8 to the photocatalytic process using TiO2 nano-particles immobilized on concrete and UV radiation for removal of Dir...

ژورنال: طلوع بهداشت یزد 2014
احرامپوش, محمد حسن, قانعیان, محمد تقی , موسوی , سیده پروین,

Introduction:The textile industry produces a colored effluent with different characteristics that needs to be treated. Adsorption is one of the methods for removing dyes. The aim of this study was to evaluate application of bone char as natural adsorbent for removal of acid orange 7 from synthetic textile wastewater. Methods:In this study, the effect of variations such as contact time, pH, in...

Journal: :محیط شناسی 0
پوریا نظیری یان دانشگاه تربیت مدرس بیتا آیتی دانشگاه تربیت مدرس- دانشکده مهندسی عمران و محیط زیست- گروه مهندسی محیط زیست حسین گنجی دوست دانشگاه تربیت مدرس

comaring the capability of photocatalyst nano zinc oxide process by two slurry and immobilized methods in dye acid orange 7 removal introduction everyday million liters of color wastewater are produced in different industries and cuases environmental problems. the textile industry significantly affects the environment, producing high volume of wastewater from water and chemicals used in process...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید