Journal of Engineering Science and Technology Vol. 1‚ No. 2 (2006) 203- 211 © School of Engineering‚ Taylor’s University College DRINKING WATER FROM DESALINATION OF SEAWATER: OPTIMIZATION OF REVERSE OSMOSIS SYSTEM OPERATING PARAMETERS MARWAN M. SHAMEL1*‚ OWEE TZE CHUNG2 1 Department of Chemical Engineering School of Engineering‚ Taylor’s University College No. 1‚ Jalan SS15/8‚ 47500 Subang Jaya‚ MALAYSIA *Corresponding Author: marwan.s@taylors.edu.my 2 Malay-Sino Chemical Industries
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Robert Hardt Instructor Mark Schmidt Surface Water Supply/Treatment March 14‚ 2013 Disinfection The main objective for the disinfection process raw water undergoes in our treatment facilities‚ rather the only purpose for disinfection is to kill any and all remaining viruses and harmful pathogens that would otherwise threaten the safety of those to consume it. Even after the turbidity has been reduced down to very nearly an ntu level of zero and the water is aesthetically sound
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substance‚ and is used in whitening clothes‚ removing stains‚ and even cleaning the bathrooms. It is a clear substance with a very strong odor‚ and has a pH of 12.6‚ meaning that it is a base. The common household bleach is made up of 5.25% sodium hypochlorite (NaClO). Bleach can cause skin irritation‚ and even serious damage to eyes or blindness if it splashes into the eyes. It should be handled with caution‚ and should not be allowed to mix with any other household substance because it may produce
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F> GUIDELINES FOR THE COLLECTION‚ CARE AND CONTROL OF RAINWATER IN TANKS F A C T S H E E T Rainwater tanks can provide a supply of good quality potable water with proper management of the tank and roof catchment. The Tank & Reduction of Water Consumption Tanks are available in galvanised steel‚ zincalume‚ fibreglass and concrete and all are suitable for the storage of potable water. Rainwater tanks should protect water from contamination. Contaminants such as industrial pollutants‚ dust
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Calcium Carbide Calcium Carbide is a chemical compound containing calcium and carbide‚ with a chemical formula of CaC2. Pure Calcium Carbide is colorless‚ but some are black or grayish-white color‚ depending on the quality. Calcium Carbide is mostly used for the production of the flammable gas acetylene‚ which is similar to the natural hormone created my plants Ethylene. Ethylene is a hormone that is used by plants to ripen fruits. In Bangladesh and some parts of South-East Asia‚ Calcium Carbide
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compounds; • explain the general characteristics of the alkaline earth metals and their compounds; • describe the manufacture‚ properties and uses of industrially important sodium and calcium compounds including Portland cement; the biological significance of sodium‚ potassium‚ magnesium and calcium. • appreciate The s-block elements of the Periodic Table are those in which the last electron enters the outermost s-orbital. As the s-orbital can accommodate only two electrons‚ two groups
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Anatomy of Sodium Hypochlorite Accidents by Omid Mehdipour‚ DDS Donald J. Kleier‚ DMD Robert E. Averbach‚ DDS Omid Mehdipour‚ DDS International Student Program Donald J. Kleier‚ DMD Professor and Chairman Robert E. Averbach‚ DDS Professor of Endodontics Division of Endodontics University of Colorado School of Dental Medicine Aurora‚ Colorado Abstract Sodium hypochlorite (NaOCl) in various concentrations is the most widely used endodontic irrigant‚ but it can be an irritant to vital tissues
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on front of packet Calcium helps to keep bones strong but just drinking milk doesn’t mean that you won’t get osteoporosis. You may be genetically inclined to get it even though you drink milk every day. There are also many other things that contribute to getting osteoporosis‚ like not eating enough calcium‚ doing steroids causes bones to become weak and look like sponges when looking at it under a microscope. Scenarios A‚B‚ and C help to explain that it’s not just the calcium that can cause osteoporosis
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“women of strength”. The seminar was held by Nestle Nesvita in the auditorium of Jinnah university for women on 25 march 2014. The purpose of the seminar to aware women about their bones‚ their vigor and health. Seminar acquainted the audience with Calcium‚ Calci- Lock and also gave the information about Osteoporosis disease. The host of the seminar asked different questions to audience and endowing them with some gifts. She also involved audience with herself and arranged an activity for audience in
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in vitamin C. Major sources of vitamin C are citric fruits such as orange and grapefruit‚ but it’s also found in sweet fruits like papaya‚ mango‚ strawberries‚ and cantaloupes. Explain the function of the following: Zinc‚ Iodine‚ Iron‚ Magnesium‚ Calcium and Chromium. Zinc is an essential mineral found in cells throughout the body. It plays an important role in the immune system‚ wound healing‚ and the breakdown of carbohydrates and lipids. Its main functions are the DNA synthesis‚ metabolism of
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