Download or read book Degradation of Benzene Toluene Ethybenzene and Xylene by Isilated Microorganisms from Petronas Gas Plant at Kertih Terengganu written by Hamid Reza Salsali and published by . This book was released on 1999 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of 38 isolates originating from five different sources of sediments, and contaminated soils from Petronas Gas Plant at Kertih, Terengganu were obtained through enrichment culture method using 0.1% (v/v) of benzene, toluene, ethylbenzene, and xylene or mixture of them as their sole energy and carbon sources. Most of the isolates were from S5 (Resindential area) and the least from S1 (equalization basin). Out of this, 11 good isolates were able to grow in varying hydrocarbon concentration up to 50% (v/v) BTEX. Only isolated No.4 showed extremely good growth in concentration up to 80% (v/v) of BTEX. Using benzene at 60% (v/v), the growth rate was observed to be highest durong the first 2 hours, while degradation rate and percentage of removal by using isolate No. 4 showed 1.5E-04 mM/s and 75% respectively. For toluene at 60% (v/v), the growth ratewas highest during the first 3 hours, while degradation rate and percentage of removal were 5E-05 mM/s and 70% respectively. In the case ethylbenzene at 60% (v/v), the growth rate was highest during the first 7 hours, while degradation rate and percentage of removal by using same isolate showed 1E-04 mM/s and 98% respectively. For xylene at 60% (v/v), the growth rate was highest during the first 5 hours, while degradation rate and percentage of removal achieved were 5.35E-04 mM/s and 8.9% respectively. In general, all the isolates had tolerated the organuc solvent (BTEX), which may be due to the adaptability of the cell membrane through a metabolic or enzymatic properties. Both High- Performances Liquid Chromatography and Gas Chromatography Mass-Spectra profile had clearly showed a BTEX-peask area ratio reduction, where the isolates were shown to biodegrade the hydrocarbon either by mineralization or biotrasfromation. However, based on the almost complex peak reduction as well as appereance of unidentified peaks, it may be suggested that BTEX can be degraded by naturally present microorganisms which was identified at Petronas Gas Berhad site.
Download or read book Substrate Interactions During the Degradation of Benzene Toluene and P xylene and Their Effects on Sorption in a Fixed Bed Biological Activated Carbon Reactor written by Myung-Keun Chang and published by . This book was released on 1994 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regional Conference on Science Technology and Social Sciences RCSTSS 2014 written by Mohd Amli Abdullah and published by Springer. This book was released on 2016-07-29 with total page 1041 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book features more than 95 papers that were presented at the bi-annual Regional Conference on Science, Technology and Social Sciences, RCSTSS 2014, which was organized by Universiti Teknologi MARA Pahang. It covers topics ranging from communications studies, politics, psychology, education, religious studies as well as business and economics. The papers, which have been carefully reviewed, include research conducted by academicians locally, regionally and globally. They detail invaluable insights on the important roles played by the various disciplines in science, technology and social sciences. Coverage includes accounting, art and design, business, communication, economics, education, finance, humanity, information management, marketing, music, religion, social sciences and tourism. Throughout, clear illustrations, figures and diagrams complement the research. The book is a significant point of reference to academicians and students who want to pursue further research in their respective fields. It also serves as a platform to disseminate research findings as a catalyst to bring out positive innovations on the development of the region.
Download or read book Ekspedisi Matahari 89 written by A. K. Mohammad Mohsin and published by . This book was released on 1990 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
