نتایج جستجو برای: phenol removal

تعداد نتایج: 156639  

2012
G. P. Sancinetti L. T. Sader M. B. A. Varesche E. L. C. Amorim S. P. F. Omena E. L. Silva

The objective of this research was to study phenol degradation in anaerobic fluidized bed reactors (AFBR) packed with polymeric particulate supports (polystyrene PS, polyethylene terephthalate – PET, and polyvinyl chloride PVC). The reactors were operated with a hydraulic retention time (HRT) of 24 h. The influent phenol concentration in the AFBR varied from 100 to 400 mg L, resulting in phenol...

Journal: :Journal of hazardous materials 2010
Y S Ng N S Jayakumar M A Hashim

The percentage removal of phenol from aqueous solution by emulsion liquid membrane and emulsion leakage was investigated experimentally for various parameters such as membrane:internal phase ratio, membrane:external phase ratio, emulsification speed, emulsification time, carrier concentration, surfactant concentration and internal agent concentration. These parameters strongly influence the per...

Bahram Kamarehie, Fatemeh Taheri Ghodratollah Shams-Khorramabadi Hatam Godini, Mohammad Almasian, Parvin Mostafaie, Sedigheh Saeedi,

Phenol and its derivatives are pollutant compounds that are present in the wastewater of many industries. The objective of this study was to investigate the photocatalytic degradation of phenol in water containing various concentrations of sodium chloride. A laboratory study was conducted to evaluate the performance of UV/ZnO process on the efficiency of phenol removal from saline water with Zn...

Journal: :iranian journal of health sciences 0
a zarei e bazrafshan 2- health promotion research center, zahedan university of medical sciences, zahedan, iran r khaksefidi 1- student scientific research center of zahedan university of medical sciences, zahedan, iran m alizadeh 1- student scientific research center of zahedan university of medical sciences, zahedan, iran

background and purpose: phenol is one of prevalent contaminants found in many industrial wastewaters. the combination with special features, such as high toxicity, carcinogenic properties, vitality gathering ability, low biodegradation potentiality and others, based on the u.s environmental protection agency, classified as a priority pollutant. the purpose of this study was to determine the eff...

2014
Seyyed Ali Akbar Nakhli Kimia Ahmadizadeh Mahmood Fereshtehnejad Mohammad Hossein Rostami Mojtaba Safari Seyyed Mehdi Borghei

In this study, the performance of an aerobic moving bed biofilm reactor (MBBR) was assessed for the removal of phenol as the sole substrate from saline wastewater. The effect of several parameters namely inlet phenol concentration (200-1200 mg/L), hydraulic retention time (8-24 h), inlet salt content (10-70 g/L), phenol shock loading, hydraulic shock loading and salt shock loading on the perfor...

ژورنال: مجله علمی پژوهان 2017
صید محمدی, عبدالمطلب, عسگری, قربان, کمری, مهدی,

Background and Objectives: Phenol is extensively used in various industries and it is mainly discharged to the  enviroment from their effluents.  In this study, the effectivness of UV activated periodate for removal of phenol in aqueous solutions was investigated. Materials and Methods: In this research,experimens were conducted in a bench scale stainless steel reactor equipped w...

Journal: :journal of research in health sciences 0
ar rahmani mt samadi a enayati moafagh

background : the main objective of this research was to study photocatalytic oxidation of phenol in aquatic solutions by using of uv, tio 2 and the combination of them. phenol compounds are widely used in industries and other daily life. highly toxicity and carcinogenicity of these compounds can causal considerable adverse effects on the aquatic ecosystems and human health. methods : the study ...

Journal: :Bioresource technology 2008
M Eiroa A Vilar C Kennes M C Veiga

The effect of phenol on the biological treatment of wastewaters from a resin producing industry was analyzed in a pre-denitrification system. First, the effect of phenol overloads on the removal of organic matter and nitrogen compounds was studied. During the overloads (from 250 to 4000 mg/L), phenol was detected in the effluent of the anoxic reactor but the system recovered fast after stopping...

ژورنال: طلوع بهداشت یزد 2014
جنیدی جعفری, احمد, رضائی کلانتری, روشنک, گل باز, سمیه ,

Introduction: Phenol is one of the aromatic hydrocarbons that exist in wastewater of various industries such as manufacturing chemicals, oil refinery and petrochemical industries. Because of its high toxicity and undesirable effect on organisms, its concentration control is essential in nature. The main objective of this study was to evaluate the efficiency of the Fenton oxidation process for t...

Background: Phenol as an aromatic hydroxyl compound are considered as a priority pollutant.  Because of their stability, solubility in water and high toxicity had health important. Methods: In the present experimental study, electrocoagulation reactor by iron electrodes are used in the presence of hydrogen peroxide to phenol removing from aqueous solutions. Effects of variables including ...

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