populations are serviced and supply areas are Horana‚ Bandaragama‚ Panadura‚ and Moratuwa. • Water abstraction point is Kandana. • Conventional treatment process is processed. Post Chlorination Transmission Adjusting pH Distribution Consumer Step 2: Typical Hazards and Hazardous Events Identification Catchment |Hazardous Events |Hazards
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CLEAN DRINKING WATER Our primary needs are food‚ water and shelter; but water is the most important need of every person. Without water‚ we cannot survive. Even for one day‚ we cannot live without water. If we have safe and clean water for drinking ‚ we’ll live healthy and prosper. The clean water we drink and which is germless is called potable water. The water we drink in our homes‚ is supplied by the municipal community. We think that it is safe and germs free but in reality it is not fully
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C H A P T E R 5 Basic Concepts from Organic Chemistry 5.1 | INTRODUCTION The fundamental information that environmental engineers and scientists need concerning organic chemistry differs considerably from that which the organic chemist requires. This difference is due to the fact that chemists are concerned principally with the synthesis of compounds‚ whereas environmental engineers and scientists are concerned‚ in the main‚ with how the organic compounds in liquid‚ solid‚ and gaseous wastes
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1 CHAPTER 1 PROJECT BACKGROUND 1.0 PROJECT BACKGROUND The main objective is to design an economic Acrylonitrile chemical plant with safer ways of processes for a minimum production rate of 100‚ 000 metric tonnes/year. 1.1 INTRODUCTION Recently‚ production of acrylonitrile has been increasing every year in many countries. The rapid growth of the industry is mainly attributed to the availability of oil and gas as feedstock‚ a well-developed infrastructure‚ and a strong base
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Social Problems and Solutions Chart | | |Social Problem of the Industrial |How was the Social Problem addressed during |Was the Social Problem |Is the Social Problem still an issue | |Age |the Industrial Age (social movement‚ law‚ |addressed successfully? Be |today? How? | | |etc.)? |sure to support your opinion | | |
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to poor sanitation‚ hygiene‚ or overcrowding. Travelers are also more susceptible to spreading the virus after visiting countries like Mexico‚ South America‚ Africa‚ or other countries with a high incidence of the disease. In the United States‚ chlorination of water kills HAV that enters the water supply. Symptoms appear 2-6 weeks after the initial infection‚ lasting less than 2 month. Some‚ especially children‚ exhibit no symptoms at all. Early signs are often mistaken for the flu. They include
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But before going deeper on what these tests are‚ what first are the difference between their results which are the primary‚ secondary and the tertiary alcohols‚ aldehydes and ketones? Alcohols are compounds in which one or more hydrogen atoms in an alkane have been replaced by an -OH group. Note however that there are different kinds of alcohols and Alcohols are categorized into different classes depending on how the -OH group is
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Writing Eqn‚ The Mole‚ Chemical Calculations‚ Acid & Bases 2. Secondary Four Topics- Salts‚ Oxidation & Reduction‚ Metals‚ Electrolysis‚ The Periodic Table‚ Energy Changes‚ Speed of Reaction‚ Ammonia‚ The Atmosphere & environment‚ Organic Chemistry‚ Alkanes‚ Alkenes‚ Alcohols & Carboxylic Acids‚ Macromolecules Physics 1. Secondary Three Topics- Measurement‚ Kinematics‚ Forces‚ Mass Weight & Density‚ Turning Effects of Forces‚ Energy Work & Power‚ Pressure‚ Temperature‚
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explain 6. give an example of each of the following i. Neutral complex ii. Cationic Complex iii. Anionic Complex iv. Hexadentate ligand SECTION B 7. a) Giving reasons arrange the following isomeric alkanes in order of decreasing boiling points i. Pentane ii. 2‚ 2-dimethylpropane iii. 2-methylbutane a) How will you synthesize methane from acetic acid? b) A hydrocarbon C4H10 (A) on monochlorination gives a compound
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Multistep Synthesis of Tetraphenylcyclopentadienone In this laboratory experiment a synthesis was performed through several separate steps. The purpose of the experiment was to synthesize tetraphenylcyclopentadienone from benzaldehyde and to run reactions on carbonyl containing compounds. There was a total of three steps that led up to the synthesis of the final product‚ tetraphenylcyclopentadienone. The first step of the experiment was the condensation of benzaldehyde to yield
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