نتایج جستجو برای: آلودگی mtbe
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Methyl tertiary-butyl ether (MTBE) is used to reduce carbon monoxide and ozone in urban air and to boost fuel octane. There is a lack of knowledge in the literature about the histomorphometric changes of the testis following exposure to MTBE. Therefore, this experimental study was performed to determine the effect of oral exposure to MTBE on histologic and histomorphometric changes of testis in...
Methyl tertiary butyl ether (MTBE) is an oxygenated fuel additive which has been used widely in many parts of the world. This experiment was performed to determine the effect of MTBE on offspring sex ratio, sex hormones and antioxidant enzymes. A total of 20 adult Sprague-Dawley male rats were divided into four groups and received 0, 400, 800 and 1600 mg/kg/day MTBE by gavages for 30 consecutiv...
امروزه، تولید و استفاده از مواد شیمیایی در صنایع مختلف، آلودگی منابع زیستمحیطی را بههمراه داشته است. یکی از ترکیباتی که میتواند باعث آلودگی گستردهی منابع طبیعی گردد، متیلترشیوبوتیلاتر (MTBE) میباشد. این ترکیب آلی که در صنایع پتروشیمی تولید میشود؛ در بنزین کشورهای مختلف جهان از جمله ایران جایگزین تترااتیلسرب شده است. با-توجه به اثبات اثرات سوء MTBE بر محیط زیست و سلامت بشر، پاکسازی م...
The release of methyl tert-butyl ether (MTBE) to the environment, mainly from damaged gasoline underground storage tanks or distribution systems spills, has provoked extended groundwater pollution. Biological treatments are, in general, a good alternative for bioremediation of polluted sites; however, MTBE elimination from environment has constituted a challenge because of its chemical structur...
The widespread use of methyl tert-butyl ether (MTBE) as a gasoline additive has resulted in a large number of cases of groundwater contamination. Bioremediation is often proposed as the most promising alternative after treatment. However, MTBE biodegradation appears to be quite different from the biodegradation of usual gasoline contaminants such as benzene, toluene, ethyl benzene and xylene (B...
Widespread contamination of groundwater by methyl tertiary butyl ether (MTBE) has triggered the exploration of different technologies for in situ removal of the pollutant, including biostimulation of naturally occurring microbial communities or bioaugmentation with specific microbial strains known to biodegrade the oxygenate. After laboratory studies revealed that bacterial strain PM1 rapidly a...
Methyl tertiary-butyl ether (MTBE) is a synthetic solvent widely used as oxygenate in unleaded gasoline. Few studies have addressed the cellular toxicity of MTBE on some cell lines, and so far, no comprehensive study has been conducted to investigate the probable immunotoxicity of this compound. In this study, the toxicity of MTBE on human blood lymphocytes was evaluated. Blood lymphocytes were...
mtbe (methyl tertiary-butyl ether) is an oxygenated organic matter which is widely used nowadays in some countries in unleaded gasoline. mtbe is a toxic substance which is absorbed quickly on water and soil and is one of the most important pollutants in soils and groundwater resources. in order to remove mtbe from the soil, using different experimental methods, determining reliable methods for ...
mtbe (متیل ترشیوـ بوتیل اتر) یک مادة آلی اکسیژن دار و سمّی است که امروزه به صورت گسترده در بنزین بدون سرب استفاده می شود. این مادة سمّی، که آب و خاک خیلی سریع آن را جذب می کنند، یکی از مواد بسیار آلاینده در خاک ها و منابع آب زیرزمینی است. به منظور حذف این مادة آلاینده از خاک اولین و مهم ترین قدم، که هدف این تحقیق نیز هست، تعیین حداکثر ظرفیت جذب mtbe به وسیلة خاک تحت تأثیر عوامل مؤثر بهینه و انتخا...
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