Essays on Pure Water

Overview

Polyvinylidene fluoride is one of the polymers that are used as membrane material. This is because of its outstanding properties. Besides its comparatively high amount of fluorine, the polymer also has a high level of crystallinity. The result of these properties are exhibited in the performance of the Polyvinylidene fluoride polymer. For instance, the chemical stability of Polyvinylidene fluoride in chlorinated solvents and environments that are highly caustic and acidic is very high. Another property of the polymer is its hydrophobicity. This means that it is not compatible with water. This would create challenges if the polymer were to ...

Introduction

Water is termed the ‘universal solvent’ since it is capable of dissolving a large variety of substances. These solutes can be broadly classified as ionic and molecular solutes, based on their behaviour in solution. Ionic solutes dissociate into their constituent ions when dissolved in water. An example of this class is sodium chloride (common salt). Molecular solutes are dissolved as uncharged molecules, like sucrose (sugar). The effect of ionic solutes on the boiling point of water is the focus of this project. Boiling occurs when the vapour pressure above a liquid equals the pressure over it. Hence, the normal ...

Water equals life because without water there is no life. Water constitutes two thirds of human body weight: the human brain consists of 95% of water; the blood contains 82% of water; and people’s lungs are made up of 90%. That is why people cannot live without water and are in constant need of it. The same can be said about animals and plants. In other words, all living organisms depend on water. And though water covers 70% of the earth’s surface, there is still a need in it. There are several reasons for it. Firstly, not ...

Introduction:

The Voss Foundation is a public charity 501(c) (3) based in the New York City. Its major goal is providing clean drinking water to African communities. The Voss Foundation was formed by the directors of Voss Water in 2008, as a non-profit foundation. Voss Chief Executive Officer Knut Brundtland together with his wife Cecile Brundtland formed the organization after taking a trip to Africa where and as a result, faced the magnitude of water crisis. After returning to their home country Norway, they went to Voss headquarters in New York and launched the process of the foundation. The Headquarters of the Voss ...