نتایج جستجو برای: phenol a

تعداد نتایج: 13437216  

Ali Babaei Mehdi Ahmadi Mehdi Vosoughi Niri Nadali Alavi Nemat Jafarzadeh Zeinab Baboli zeinab ghaedrahmat,

Background: Phenolic compounds are found in wastewater of many industries such as pulp and paper, textile, petrochemical, oil refineries, production of phenolic resins, plastics, coal furnace, tannery, rubber reclamation plant, fertilizers, coke, paints, rubber, decolorizer, resins, rubber and phenol- formaldehyde resin industries. This study aimed to evaluate Moving Bed Biofil...

2006
Khaled M. Khleifat

Ewingella americana was grown in batch cultures using a phenol-containing M9 minimal medium. Phenol was found to be the sole source for carbon and energy. Phenol was found to inhibit the growth rate with a maximum concentration of 1100 ppm, beyond which no growth occurred. The Haldane model was used to predict the specific growth rate-concentration data. The maximum growth rates on phenol (300 ...

F Naghibi F Pourmorad M Shamsi S Honary

Plant materials have been found useful in decontamination of water polluted with phenolic compounds. The detoxification effect is due to peroxidases contained in plant tissue. Enzyme mediated oxidative coupling of phenol is followed by precipitation of the formed polymer and its removal from the aqueous phase. A synthetic wastewater buffered at pH = 7.4 containing 0.9 mM phenol was treated in t...

Journal: :Journal of orthopaedic surgery 2014
Manasseh Nithyananth Anne Jennifer Priscilla P V J R C Boopalan V T K Titus Vernon N Lee

PURPOSE To evaluate the time required for effective action of phenol against the giant cell tumour (GCT) cells. METHODS Fresh GCT cells were harvested from 9 patients with primary GCT of the distal femur (n=4), proximal tibia (n=4), and proximal humerus (n=1), with the Campanacci tumour grades 3 (n=6), 2 (n=2), and 1 (n=1). Specimens were immersed in 80 % phenol for one, 3, 6, and 10 minutes,...

2012
Saurabh Gupta Mritunjay Saxena Neeru Saini Mahmooduzzafar Rita Kumar Anil Kumar

INTRODUCTION AND RATIONALE The detection of bioavailable phenol is a very important issue in environmental and human hazard assessment. Despite modest developments recently, there is a stern need for development of novel biosensors with high sensitivity for priority phenol pollutants. DmpR (Dimethyl phenol regulatory protein), an NtrC-like regulatory protein for the phenol degradation of Pseudo...

Journal: :Toxicology 1990
V V Subrahmanyam P Doane-Setzer K L Steinmetz D Ross M T Smith

The coadministration of phenol and hydroquinone has been shown to produce myelotoxicity in mice similar to that observed following benzene exposure. One explanation of this phenomenon may be that phenol enhances the peroxidase-dependent metabolic activation of hydroquinone in the mouse bone marrow. Here we report that radiolabeled [14C]hydroquinone and [14C]phenol bind covalently to tissue macr...

Journal: :journal of physical & theoretical chemistry 2006
gholam-hossein naficy seyed, saeed reza emamian

adsorption of 1-butanol, phenol, and p-nitrophenol on activated carbon havebeen studied. the results were used to testifying the validity of different modelsbased on thermodynamic principles: freundlich, langmuir and henry isotherms.the maximum capacity of adsorbent for three compounds was determined, theconstants of equilibrium were determined by freundlich isotherm and virialisotherm expressi...

2000
Herbert H. P. Fang

The effects of hydraulic retention time (HRT) and phenol concentration on the degradation of phenol and p-cresol in wastewater were investigated in two respective UASB (upflow anaerobic sludge blanket) reactors with effluent recirculation at 37 oC for over 440 days. After acclimation, nearly all the phenol and p-cresol at moderate concentrations could be degraded without carbohydrate as a co-su...

2016
Mojtaba Afsharnia Mahdi Saeidi Amin Zarei Mohammad Reza Narooie Hamed Biglari

INTRODUCTION Phenol and its derivatives are the most common poisonous compounds which are stable in aqueous media and lead to many health issues. In this study, application of the carbon resulted from pomegranate peel is investigated in removal of phenol by adsorption method. METHODS to perform this cross-sectional study, first, samples of phenol with concentrations of 10 to 100 mg/L were pre...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1995
H Chiba K Komatsu Y C Lee T Tomizuka C A Strott

The guinea pig estrogen sulfotransferase gene has been cloned and compared to three other cloned steroid and phenol sulfotransferase genes (human estrogen sulfotransferase, human phenol sulfotransferase, and guinea pig 3 alpha-hydroxysteroid sulfotransferase). The four sulfotransferase genes demonstrate a common outstanding feature: the splice sites for their 3'-terminal exons are identically l...

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