Dr Rajiv Desai
An Educational Blog
Desalination
Desalination: _ The history of water is equivalent to the history of the world and the history of water quality is equivalent to the history of life. —Andreas N. Angelakis _ Section-1 Prologue: All early civilizations were built on the banks of rivers. Whether it was the Euphrates in the Fertile Crescent or the Tiber in Rome, rivers gave early settlements easy access to abundant streams of fresh water, essential not only for drinking but also for irrigating crops. The availability of water was one of the biggest constraints on the growth of settlement and population size. The layout of Ancient Egypt reflected this. It stretched out like a long snake, hugging the banks of the Nile River. The invention of aqueducts by the Romans first enabled water to be carried long distances, providing the crucial utility to remote stretches of its sprawling empire and allowing populations to […]
DRINKING WATER
Drinking Water: ____________ _ For last 8 years, I lived in a small town Daman and drank purified bottled water because water supplied by local municipality is suspected of unhygienic quality and water from private bore-well may well be contaminated as many areas of town have poor sewer drainage resulting in seepage of sewage in the soil itself and sewage tanks are in the vicinity of bore-wells. Assuming you’re in reasonable shape and in ideal conditions — that is, not in the heat or cold and not exerting, a human can probably live for about 3 to 5 days without drinking water. Healthier humans can live another day or so longer. Water is believed to be elixir of life. Humanity highly depends on water and its proper utilization and management. Although, water has various uses, perhaps its use as thirst quenching fluid is the most significant one. The life-supporting […]
SANITATION
Note: During routine maintenance of website, the article ‘Sanitation’ was inadvertently lost and therefore I am re-instating it in its original form now. It was posted in December 2012 but now it is posted in March 2013. The article ‘Fear’ is following the article ‘Sanitation’. Dr. Rajiv Desai. MD. March 20, 2013 ________________________________ Saturday, December 1st, 2012 SANITATION : _ The picture above shows open defecation near railway track in India. _ Prologue: After writing many articles on topics which concern us in our daily life; right from food, environmental pollution, water and clothing, I thought I must write on the most important and most neglected subject, namely sanitation i.e. safe disposal of human excreta (feces & urine). Till the age of 15 years, I did not have the luxury of private toilet as I was brought up in a middle class environment in Mumbai where shared toilet was the […]
