Natural Water, Hardness, Pollution, Water Cycle, Treatment and Uses

ABSTRACT Water plays a very vital role in our daily lives. Human and other forms of life practically depend on water for survival. Water also plays an important role in the World Economy, as it functions as a solvent for a wide variety of chemical substances and facilitates industrial cooling and transportation. Water is an infinite resource; it moves continually through the water cycle and covers about 71 percent of the earth’s surface. However, clean and safe drinking water is becoming scarcer due to pollution. Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds. Water pollution is a major global problem which requires ongoing evaluation and revision of water resource policy at all levels – international down to individual aquifers and wells. 
TABLE OF CONTENTS Title Page Acknowledgement Certification Abstract 1.0Introduction 1.1Physical and Chemical Properties of Water 1.2Uses of Water 1.3Occurrence of Water – The Water Cycle
2.0Hardness of Water 2.1Causes of Water Hardness 2.2Temporary Hardness 2.3Permanent Hardness 2.4Effects of Hard Water 2.5Water Softening
3.0Water Pollution 3.1Causes of Water Pollution 3.2Water Treatment Conclusion References