Earth’s oceans could potentially be utilized as a source of virtually inexhaustible renewable energy. Ocean Thermal Energy Conversion (OTEC) is a method that employs naturally occurring temperature differences between warm surface water and colder deep seawater. To be effective a minimum temperature difference between the ocean surface layers is 20C . These temperature gradients exist primarily in specific tropical regions near the equator originally proposed by French Engineer Jacques Arsene d’Arsonval
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1-litre glass jars; 6‚ 7”x9” aluminums trays; 12 pcs. 3”x4” SM plastic bags; 500g loam soil; 500g compost soil; 500mL seawater; 500mL tap water; Analytical balance; Graduated cylinder; and Weighing scale. The procedure involved cutting the SM plastics bags into 3”x4” sizes strips. Label the strips into C1‚ C2‚ C3 for compost soil‚ L1‚ L2‚ L3 for loam soil‚ S1‚ S2‚ S3 for seawater and T1‚ T2‚ T3 for Tap water treatments. Then determine the initial weights of the plastic strips in grams using the
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Greece Tel. +30 210 5294769; Fax +30 210 5294776; email: i.karagiannis@aua.gr Received 21 December 2006; accepted 28 February 2007 Abstract As water resources are rapidly being exhausted‚ more and more interest is paid to the desalination of seawater and brackish water concentrations. Today‚ current desalination methods require large amounts of energy which is costly both in environmental pollution and in money terms. Many studies of water desalination costs appear regularly
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Tree” due to the numerous benefits that it can give. However‚ only few know that one of the ability of Malunggay to work as water purifier. In this study‚ the proponents aimed to establish the effects of Maluggay leaves and seed respectively on seawater. Aside from its potential as biofuel feedstock‚ the seed of moringa‚ locally known as malunggay‚ could also be used for purifying water. Researchers said that seed kernels of malunggay have important amounts of water soluble protein that hold a
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PREVENTION OF OIL SPILL POLLUTION IN SEAWATER USING LOCALLY AVAILABLE MATERIALS Nasser Al Hashar Dr Syed Anisuddin Tabassum Sadik Dr Sofia Tahseen Caledonian College of Engineering (A University College) 2322‚ CPO Seeb 111 SULTANATE OF OMAN anis_adil@hotmail.com A b s t r a c t Oil spill pollution‚ a severe environmental problem which persists in marine environment or in inland water across the world‚ has grown to an alarming magnitude with
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desalination of water water‚ desalination of‚ process of removing soluble salts from water to render it suitable for drinking‚ irrigation‚ or industrial uses. The principal methods used for desalination include distillation (or evaporation)‚ electrodialysis‚ freezing‚ ion exchange‚ and reverse osmosis. In distillation saltwater is heated in one container to make the water evaporate‚ leaving the salt behind. The desalinated vapor is then condensed to form water in a separate container. Although long
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excess carbon dioxide in the atmosphere that we don’t see or feel because its effects are happening underwater. When carbon dioxide is absorbed by seawater a chemical reaction occurs that reduces the seawaters pH‚ carbonate ion concentration‚ and saturation states of biologically significant calcium carbonate minerals. It decreases the pH of seawater‚ meaning it increases the seawater’s acidity. Over the past 250 years‚ ocean acidity has increased by 30 percent. At least one-quarter of the carbon
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“What’s that Awful Smell”? - Bromine There are 118 known elements to man‚ and each of them differ in its own way. They vary from weight‚ structure‚ color‚ and much more‚ but many of them are similar to others and can be grouped accordingly. One element that varies drastically from others is one whose stench is so horrible‚ that the original name of the element was changed from muride to bromos‚ which means “stench” in Greek. Thus‚ bromine was named. Like many other known elements‚ bromine was discovered
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of brine shrimp per jar whilst keeping algae concentration and volume of seawater in each jar constant. There will be three groups of jars with each group containing 3 jars each; group 1 will have one brine shrimp‚ group 2 will have two brine shrimps‚ while group 3 will be the control‚ already filled with the required concentration of algae and containing no brine shrimp. Fill the group 1 and 2 jars with 46.68 mL of seawater and 3.32 mL of algae‚ taken from the 25‚000 cells/mL jar of algae. Be sure
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In our search for prosperity‚ growth and success‚ we are destroying the system that we as human are completely dependent upon. Population growth‚ water-intensive agriculture and economic development are using water faster than it can be replenished. Our Earth is a place where beauty exists‚ a place where 6.6 billion people and 15 million other species live‚ a place filled with 1.4 cubic kilometers of water. Although 70% of the planet’s surface is blanketed with deep oceans water‚ freshwater only
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