نتایج جستجو برای: nitrate and cod removal efficiency in optimum conditions were 9993

تعداد نتایج: 21831156  

ژورنال: سلامت و محیط زیست 2011
برجسته عسکری, فاطمه, رحمانی, علیرضا, سلیمانی امین آباد, مهری, عسگری, قربان,

Backgrounds and Objectives: High level of nitrate ion in the water resources cause some health and environmental problems. The aim of this research is to study nitrate removal by Zero-Valent Magnesium (ZVM) and MgCl2-modified pumice from aqueous solutions.Materials and Methods: The pumice granules were modified by MgCl2 . The removal of nitrate was studied in a batch system. The pH, initial nit...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم تربیتی و روانشناسی 1388

on- the-job training on of the most effective tools for managers to cope with the changing organizational environment. it grantess suitable services to customers, particularly in public service enterprises. if such training os goal oriented, planned systematically, and tailored to the employees, job content, then not only it could increase employees and organizational performance, but also it c...

ژورنال: سلامت و محیط زیست 2015
حقیقی, محسن, خرسندی, حسن , علیزاده, رحیمه , محمدی, امیر, کریمی نژاد, فاطمه,

Background & Objectives: Entering LAS through the wastewater plant’s effluent to water resources causes taste and odor changes, aquatics death, oxygen transfer limitation, and disorders in water treatment processes. Therefore, the study objective was to determine optimum conditions for fenton oxidation process to remove linear alkyl benzene sulfonate from aqueous environments using taguchi meth...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم 1392

the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...

Background & Aims of the Study: Wastewater discharges from vegetable oil industry cause environmental problem, including pollution of groundwater and surface water. Therefore, this study evaluated the efficiency of Integrated Fixed-Film Activated Sludge (IFAS) reactor for treatment of wastewater from Varamin vegetable oil industries. Materials & Methods: This was an experimental study. The ...

Ahmadi, Samira, Bahadori, Roghayeh, Ghavami, Zhila, Kermani, Majid, Mehralipour, Jamal, Shahbazi, Zahra,

Introduction: Chemical Oxidation Demand (COD) is an important parameter in treatment of leachate. Leachate from solid waste has a high pollutants that must be treatment before discharge to environment. The aim of this study was optimization of US-Electro/persulfate process, predicate of optimum conditions by RSM for landfill leachate treatment. Methods and materials: In this experimental st...

ژورنال: طلوع بهداشت یزد 2012
ززولی , محمدعلی, اسلامی, اکبر , باقری اردبیلیان , مریم , یوسفی, ذبیح‏اله ,

 Background: Advanced oxidation processes such as Fenton and photo-Fenton that have been applied effectively to oxide the persistent organic compounds in leachate and converts them to unharmful materials and final products. However, there are a few data about application of Fenton-like process in leachate treatment. Therefore, the aim of this study was to treat the municipal landfill leachate b...

2008
Ugur Kurt M. Talha Gonullu Fatih Ilhan Kamil Varinca

In this study, the potential to treat domestic wastewater (DWW) using an electrocoagulation (EC) process was tested on two different samples, one of which was heavily loaded [380 mg chemical oxygen demand (COD)/L]; the other was weakly loaded [260 mg COD/L]. The samples were supplied from the Istanbul-Yenikapi DWW pretreatment plant. The experimental studies were conducted within an electrolysi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه مواد و انرژی - پژوهشکده سرامیک 1392

thermal barrier coatings (tbcs) are used to provide thermal insulation to the hot section components of gas turbines in order to enhance the operating temperature and turbine efficiency. hot corrosion and thermal shocks are the main destructive factors in tbcs which comes as a result of oxygen and molten salt diffusion into the coating. in this thesis atmospheric plasma spraying was used to dep...

Journal: :journal of research in health sciences 0
kazem godini ghasem azarian ali reza rahmani hassan zolghadrnasab

background: electrochemical methods, as one of the advanced oxidation processes (aops), have recently been applied to remove different contaminants from water and wastewater. this study compares the performance of anodic oxidation (ao) and electro-fenton (ef) methods on waste sludge treatment. methods: this experimental study was performed on real sludge and the effect of operating parameters s...

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