THE FIRST SECONDARY STUDENTS AND ENGINEERING FAIR
CATEGORY: PHYSICS TALK
TITLE: SOLAR WATER PURIFIER
PRESENTERS: JESSE ODHIAMBO
VENUE: KISII HIGH SCHOOL
We would like to declare that the project above has never been performed in the previous science and engineering fairs before. NAME: ……………………………….. SIGNATURE: ………… NAME:………………………………
SCIENCE PATRON DECLARATION
I have checked this work and confirmed that it is good for presentation. This work was done under my supervision.
Patron: Mr. Samson Madanji Sign…………………..
Principal: Mr. Charles Ogada Sign…………………..
We would like to appreciate the support given to us by the School Board of Governance for providing us with necessary equipment to carry out our research and also for our patron, Mr. Madanji for giving us an open ground for thorough research. Above all we thank God for seeing us through in every of our partaken activities.
TABLE OF CONTENTS
STATEMENT OF THE PROBLEM
Justifications and significance
DATA ANALYSIS AND INTERPRETATION
CONCLUSION AND RECOMMENDATION
CHAPTER 1: ABSTRACT
Solar water purifier is a device that purifies water through solar energy. Dirty water is a key link in the cycle of water borne diseases that affects the worlds’ poorest day who would otherwise contribute more to the overall economic and social development. Improved solar water purifier directly impacts on achieving universal education and reducing the rate of mortality. Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids and gases from contaminated water. The goal is to produce water fit for a specific purpose. Most water is purified for human consumption (drinking water), but water purification may also be designed for a variety of other purposes, including meeting the requirements of medical, pharmacological, chemical and industrial applications. In general the methods used include physical processes such as filtration, sedimentation, and distillation, biological processes such as slow sand filters or biologically active carbon, chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light. The purification process of water may reduce the concentration of particulate matter including suspended particles, parasites, bacteria, algae, viruses, fungi; and a range of dissolved and particulate material derived from the surfaces that water may have made contact with after falling as rain. The standards for drinking water quality are typically set by governments or by international standards. These standards will typically set minimum and maximum concentrations of contaminants for the use that is to be made of the water. It is not possible to tell whether water is of an appropriate quality by visual examination. Simple procedures such as boiling or the use of a household activated carbon filter are not sufficient for treating all the possible contaminants that may be present in water from an unknown source. Even natural spring water – considered safe for all practical purposes in the 19th century – must now be tested before determining what kind of treatment, if any, is needed. Chemical and microbiological analysis, while expensive, are the only way to obtain the information necessary for deciding on the...
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