Chlorine Is The Single Largest Contributor For Safe...

INTRODUCTION Chlorine is the single largest contributor to safe drinking water, in the history of public health. In 1902 the first chlorine disinfection system was installed in Belgium. By the 1920’s nearly the whole world started using the process. Due to this disinfection process many disease-causing microorganisms were abolished. According to Life Magazine (1997) â€Å"The filtration of drinking water plus the use of chlorine is probably the most significant public health advancement of the millennium† As consumers have started to have greater knowledge, they want to know what they’re drinking and how this will affect them in short-term and long-term. The main concern related to chlorination is the by-products produced. The by-products are said to be cancer causing. CHEMICAL BACKGROUND Chlorination is used in most Australian capital cities and small water supplies as it is inexpensive, easy to use and protects water within the pipe system. Treating drinking water involves two processes; the physical removal and the chemical disinfection. The traditional seven step water processes used around the globe is Coagulation, flocculation, sedimentation, filtration, disinfection, fluoridation and the storage distribution. (Refer to figure 1) The main focus for this report is the disinfection section. During the disinfection process different chlorine products are added to the filtered water to remove harmful microorganisms. When the disinfectant is added â€Å"freeShow MoreRelatedClean and Green7078 Words   |  29 Pageshave pets and/or small children that you opt for plants that are not poisonous. Never flush your old medications. In almost everyone’s medicine cabinet there is expired medications. But whatever you do, do not flush them! That puts them into the water, which can be dangerous. Instead inquire at your pharmacy about whether they will take them and dispose of them properly. If they cannot handle them they will at least be able to tell you where you can take them. Don’t waste heat when the fireplaceRead MoreSexually Transmitted Diseases35655 Words   |  143 PagesScience For Living Notes (Compiled) Table of Contents Unit 1 Measurement 5-10 Unit 2 Matter 11-48 Unit 3 Basic materials for maintaining life Air 49-54 Water 55-68 Food 69-71 Other biomolecules of life 72-76 Unit 4 Energy in the Community Electricity 77-78 Heat 78-81 Light 82-91 Sound 92 Simple Machines 93-99 Unit 5 The Physical Environment Weather and Climate 100-113 Soils 114-128 Read MoreSience23554 Words   |  95 Pagesin conjunction with the phenomenon known as thegreenhouse effect. †¢ Energy from the sun drives the earth’s weather and climate, and heats the earth’s surface; †¢ In turn, the earth radiates energy back into space; †¢ Some atmospheric gases (water vapor, carbon dioxide, and other gases) trap some of the outgoing energy, retaining heat somewhat like the glass panels of a greenhouse; †¢ These gases are therefore known as greenhouse gases; †¢ The greenhouse effect is the rise in temperatureRead More_x000C_Introduction to Statistics and Data Analysis355457 Words   |  1422 Pageswife, Sally, and my daughter, Anna C. O. ââ€"   To Carol, Allie, and Teri. J. D. ââ€"   About the Authors puter Teacher of the Year award in 1988 and received the Siemens Award for Advanced Placement in mathematics in 1999. Chris is a frequent contributor to the AP Statistics Electronic Discussion Group and has reviewed materials for The Mathematics Teacher, the AP Central web site, The American Statistician, and the Journal of the American Statistical Association. He currently writes a column for