نتایج جستجو برای: phenol

تعداد نتایج: 15999  

2015
Syed Adnan Hasan Suraiya Jabeen

This article elucidates that strain Pseudomonas aeruginosa (IES-Ps-1) is a versatile toxic organic compound degrader. With the degradation of malathion and cypermethrin (studied by other researchers previously), this strain was able to degrade phenol. Two other indigenous soil flora (i.e., Pseudomonas sp. (IES-S) and Bacillus subtilis (IES-B)) were also found to be potential phenol degraders. P...

Journal: :Bioscience, biotechnology, and biochemistry 2005
San-Chin Tsai Li-Duan Tsai Yaw-Kuen Li

An isolated yeast strain was grown aerobically on phenol as a sole carbon source up to 24 mM; the rate of degradation of phenol at 30 degrees C was greater than other microorganisms at the comparable phenol concentrations. This microorganism was further identified and is designated Candida albicans TL3. The catabolic activity of C. albicans TL3 for degradation of phenol was evaluated with the K...

2014

The present study analyses the potential of acid treated chitosan for simultaneous co-adsorptive removal of phenol and cyanide from a binary waste water solution. The effects of parameters like pH, temperature, initial concentration, adsorbent dose, and adsorbent size were studied. At an optimum pH of 8, temperature of 300C, initial phenol and cyanide concentration of 200 mg/L and 20 mg/L respe...

2008

Phenol is a product of combustion of coal wood and municipal solid waste; therefore, residents near coal and petroleum fueled facilities as well as residents near municipal waste incinerators may have increased exposure to phenol. Phenol is also a product of auto exhaust, and therefore, areas of high traffic likely contain increased levels of phenol. Recent data on concentrations of phenol in a...

2006
Cherif Ben-Youssef Julio Waissman Gabriela Vázquez

Phenol biodegradation using acclimated activated sludge was investigated in batch and fedbatch cultures with variable initial concentrations of phenol and biomass. The batch experimental data show a cell growth after phenol exhaustion, making the use of a conventional Haldane model, for which specific growth rate μ = 0 when substrate S = 0, inadequate to describe biomass growth profiles. On the...

Journal: :Circulation 1998
J E Olgin H J Sih S Hanish J V Jayachandran J Wu Q H Zheng W Winkle G K Mulholland D P Zipes G Hutchins

BACKGROUND Heterogeneous electrophysiological properties, which may be due in part to autonomic innervation, are important in the maintenance of atrial fibrillation (AF). We hypothesized that heterogeneous sympathetic denervation with phenol would create a milieu for sustained AF. METHODS AND RESULTS After the determination of baseline inducibility, 15 dogs underwent atrial epicardial phenol ...

Journal: :American journal of hypertension 2002
Shaohua Ye Huiqin Zhong Vijay Yanamadala Vito M Campese

Intrarenal injection of phenol in rats causes a persistent elevation in blood pressure (BP) and in norepinephrine (NE) secretion from the posterior hypothalamus (PH), and downregulation of neuronal nitric oxide synthase (nNOS) and interleukin-1beta (IL-1beta) in the PH. These studies suggest that afferent impulses from the kidney to the brain may be responsible for hypertension associated with ...

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...

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...

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