Evaluation and Characterization of Seawater RO Membrane Fouling Dr. Sambhu Saran Mitra – Water System Manager‚ Antony Rajan Thomas – Chemist and Guo Tian Gang – Water Engineer‚ Sembcorp Gulf O&M Co Ltd‚ Fujairah Water & Power Plant‚ Fujairah‚ PO Box 5024‚ UAE. Email: sambhu.mitra@sembcorp.com Mobile: +971503994191‚ ABSTRACT Fresh water shortage is a growing problem facing the world‚ especially in the Middle East. With the rapid increase in fuel price‚ seawater reverse osmosis (SWRO) is increasingly
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Public health From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Newspaper headlines from around the world about polio vaccine tests (13 April 1955). Public health is "the science and art of preventing disease‚ prolonging life and promoting health through the organized efforts and informed choices of society‚ organizations‚ public and private‚ communities and individuals" (1920‚ C.E.A. Winslow).[1] It is concerned with threats to health based on population health analysis. The
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BIOREMEDIATION INTRODUCTION:- The process of bioremediation was reportedly devised by George M Robinson in the 1960 during experimentation with dirty jars and the introduction of microbes this was however not applied until the 1972 clean out of the fuel holding tanks on the RMS queen mary. Science 1972 bioremediation has become greater developed as a means of cleaning up spills of gasoline diesel ‚ heavy metals and other easily degraded petroleum products (National Research Council 1993). Bioremediation
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Although the exact date of when rockets were first invented is still unclear‚ it is believed that the Chinese invented the first “rocket” (“The History of Rocket Science”). Moreover‚ the Chinese used gunpowder‚ invented in around 100 A.D‚ and positioned it in Bamboo sticks for religious festival tradition (“The History of Rocket Science”). Large bamboo sticks were created and decorated by Monks and villagers‚ then blasted skyward to inform the Rain God Phaya Thaen that it is time to send rain down
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How would you convince a friend that microorganisms are more than just disease causing agents? An entire kingdom of microorganisms was brought into life 3 billion years ago. Since then «the earth is a fundamentally a microbial planet‚ to which the micro-organisms are recent the relatively unimportant additions» (Wheelis‚ Mark‚ Principles of modern microbiology‚ 2008‚ p.1). The term microorganisms consist of bacteria‚ archaea‚ fungi‚ and protest‚ which can either be unicellular or multicellular
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discovered microorganisms that caused diseases; the microorganisms came from people dumping waste into our clean water and various pollutants from factories and industries. By the 1920s‚ cities started filtering their water with sand which then led to chlorination cleansing. During this time‚ the dust bowl happened causing a major drought‚ which led the government to allow the farmers to pump their irrigation water from underground resources (CQ Report‚
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Cholera‚ aka Asiatic Cholera or epidemic cholera‚ is an infectious disease of the gastrointestinal tract caused by the Vibrio cholerae bacterium. From the family Vibrionaceae‚ the bacterium is characterized as a gram-negative rod. As with other gram-negative rods‚ Vibrio cholerae produces an endotoxin‚ known as cholera toxin. This bacterium is mobile due to the presence of a single polar flagellum and is highly infectious. The Vibrio cholerae bacterium grows in both freshwater and marine habitats
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Year 12 Chemistry 2011 Student Handbook Table of Contents Errors 2 Significant Figures 2 States of Matter in Equations 2 Revision Hints 3 Equations 4 VCAA 2008-2011 Key Skills 6 Unit 3 VCAA Study Design 7 Unit 3 Timetable 8 Unit 3 Work Set Questions 10 Unit 4 VCAA Study Design 11 Unit 4 Timetable 12 Unit 4 Work Set Questions 14 ERRORS When instruments are manufactured‚ there is a specified uncertainty within which the instrument is designed
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COMPARATIVE INVESTIGATION OF ORGANIC COMPOUNDS Abstract Organic compunds were examined to a comparative investigation to differentiate the properties of each sample. The physical state at room temperature‚ odor and color of the sample were noted by simple observation. In terms of solubility in H2O‚ 5% NaOH solution and 5% HCl solution‚ the samples were classified as to miscible‚ slightly immiscible or immiscible for liquid; and very soluble‚ soluble‚ partially soluble or insolubse for solid. The
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Arenes The aromatic hydrocarbons also have the name arenes. They contain in their molecule one or more cycles made up from 6 carbon atoms. When the molecule is formed out of a single cycle‚ the hydrocarbons are mono nucleuses; when the molecule contains more than one cycle‚ the hydrocarbons are poly nucleuses. The simplest aromatic hydrocarbon‚ benzene‚ is compound out of just one such cycle; its formula is C6H6. The representation of benzene through a cycle of 6 carbon atoms with 3 double bounds
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