HKU SPACE Community College Higher Diploma Programme First Semester 2010 – 2011 English for Academic and Professional Purposes (Part II) Assignment 2: Research Report “The Attitudes towards Waste and Recycling among HKU SPACE Community College Students.” To: From: DAVID OSHLACK CORA CHAN LI WING NAM‚ VENUS (10457670) (10454461) MAK OI YING‚ YUKI (10460402) MAN LOK YI ‚ JOANNA (10453298) WONG WING MAN‚ WING (10454885) Class: CD 85-322-18-03 (01) Submission Date: 19 November 2010
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Sámuel mikoviny Doctoral School of earth ScienceS head of the Doctoral School: Dr.h.c.mult. Dr. kovács ferenc Efficiency and System Approach in Communal Solid Waste Management Theses of Doctoral Dissertation research location: university of miskolc faculty of earth Science & engineering institute of Process engineering Prof. Dr. csőke Barnabás head of the institution‚ university Professor Dr. Bokányi ljudmilla associate university Professor Scientific leaders: Kiss Tibor chartered mining engineer
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Chemistry F332 Notes Ions in solids and solutions: Structure of an ionic lattice (Sodium Chloride): * Consists of sodium ions (Na+) surrounded by six chloride ions (Cl-) * Chloride ions also surrounded by six sodium ions. * Held together by attraction of oppositely charged ions. * Giant ionic lattice. * Electrostatic bonds hold lattices together. * Structure is simple cubic. * Some ionic crystals contain water. * Known as water of crystallisation. * These crystals
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LS Separation of Mixtures and Solids Purpose: To become familiar with the separation of mixtures of solids Hypothesis: I will be able to separate the materials using a variety of different methods. First‚ separate the iron fillings using a magnet. Second‚ I will put the rest of the solution into water and separate the insoluble sand from the soluble salt and benzoic acid. Third‚ I will filter out the benzoic acid when crystalized. Lastly‚ I will evaporate the water away leaving crystallized
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PURPOSE The purpose of this experiment is to become familiar with the separation of mixtures of solid and learn separation techniques based on the chemical properties of a substance. PROCEDURES 1. Separating out the Iron a. Use your digital scale to determine the mass of your weighing dish. b. Empty the entire mixture of solids from the plastic bag into the weighing dish and determine the gross mass of the total mixture and weighing dish. Compute the net mass of the mixture: this is equal
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The study of shelf life for liquid biofertilizer from vegetable waste showed that contrary to the traditional advice that liquid biofertilizers produced from fermentation by effective microorganisms‚ should be used within three months of production‚ the liquid biofertilizer produced from vegetable waste still contains high amount of viable microbial population after four months of storage with no significant effect of the presence or absence of light (Ngampimol and Kunathigan‚ 2008). The most common
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paper is to provide further information on recycling in terms of the definition of recycling‚ environment and natural resources‚ the methods of recycling‚ the advantages and disadvantages of recycling‚ and the obstacles of recycling. II. The Definition of Recycling 1 A) Rubbish B) Reasons why people need to recycle III. Environment and Natural Resources 2 A) Influences B) Sequel C) Solution IV. The Methods of Recycling 2 A) 10 ways to recycle V.
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Managing our Solid Waste: An Overview of the Ecological Solid Waste Management Act Much had been written about the worsening problem of solid waste in Metro Manila and other urban centers in the country. Even more were fora‚ seminars and conferences conducted to discuss ways of solving the problem. For how long would it take us to attain a zero waste economy‚ no one knows. But‚ one thing is sure - time is running out and WE need to act NOW! Why WE? The answer is simple‚ but at the same time
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The biodegradable wastes shall be processed by composting‚ vermicomposting‚ anaerobic digestion or any other appropriate biological processing for stabilization of wastes. Mixed waste containing recoverable resources shall follow the route of recycling. Incineration with or without energy recovery can also be used for processing wastes in specific cases. Land filling shall be restricted to non-biodegradable‚ inert waste and other waste that are not suitable either for recycling or for
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Surface Tension Properties of Liquids Introduction The purpose of this experiment is to measure and record the surface tension of water and other aqueous solutions using capillary rise method techniques and practicing lab safety. In this laboratory the surface tension of water depends on the concentration of the following solutes; NaCl‚ acetone‚ and sodium dodecyl sulfate (SDS). Intermolecular interactions as well as other phases (solid‚ or air) make a liquid exist. The data collected will show
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