in this paper, the removal of phenol by using aqueous solution in a low pressure reverse osmosis membrane was investigated. the effect of feed pressure, feed concentration, feed flow rate and feed ph on phenol rejection was investigated. the results showed that feed ph is the most affective parameter on the phenol rejection. rejection of phenol increased with increasing ph from 2 to 10 under th...

Ohtsuji, H., and Ikeda, M. (1972). Brit. J. industr. Med., 29, 70-73. Quantitative relationship between atmospheric phenol vapour and phenol in the urine of workers in Bakelite factories. A survey in Bakelite factories revealed that the urinary level of total phenol, free plus conjugated, increased in proportion to the phenol concentration to which the subject was exposed in his working environ...

Phenol is naturally found in some foods and animal wastes. It is also used as a disinfectant, insecticide and in some pharmaceutical products. Immunotoxicity is considered to be one of the harmful health effects of phenol. Propolis is a mixture of beeswax and resins; it has an antimicrobial, anti-inflammatory, antioxidant and immunomodulatory effect. This study investigates effect of propolis o...

Among all the aromatic compounds phenol is the major constituent of soil contaminated form many industries. Toxicity of phenol is well recognized for human as well as environment. In future, microbial system is the potential tool to deal with environmental pollutants like phenol. In the present study, an aerobic bacterial culture was isolated from oil contaminated soil by enrichment technique a...

Methods for detection and quantification of phenol have been developed primarily for use in environmental and industrial monitoring, given the widespread use of phenol as a disinfectant and antiseptic. Little information is available regarding concentrations of phenol in the blood of patients treated with phenol in regional nerve blocks (e.g., intrathecal) for temporary relief of pain or spasti...

background: phenol and its derivatives like dinitrophenol and pentachlorophenol (carbolic acid) are widely used as insecticides, but they are very toxic substances. phenol is a general protoplasmic poison with corrosive local effects that denature proteins. poisoning with phenol compounds may occur by ingestion, inhalation, and absorption through skin. in this report we presented the toxicity e...

Oxidative coupling reaction of phenol mediated by birnessite was studied in aqueous phase and soil. Phenol was readily transformed by birnessite and almost all phenol disappeared in both samples after 24 hours of reaction. Phenol transformation kinetics was investigated by plotting reaction time against logarithm concentrations of residual phenol, revealing that exponential decrease of phenol w...

Ralstonia eutropha strain E2 (previously Alcaligenes sp.) is a phenol-degrading bacterium expressing phenol-oxygenating activity with a low Ks (the apparent half-saturation constant in Haldane's equation) and an extremely high KSI (the apparent inhibition constant). To identify the molecular basis for these novel cellular kinetic properties, a 9.5 kb DNA fragment that allowed Pseudomonas aerugi...

background and purpose: phenol and derivatives are common pollutants of drinking water which are blamed for crucial adverse effects such as poisoning, cancer, and malformation. in this study, an activated carbon of miswak’s root (mr) was used for the removal of phenol from aqueous solutions as a low-cost and high surface adsorbent. materials and methods: adsorption experiments were then conduct...