Sewage treatment The objective of sewage treatment is to produce a disposable effluent without causing harm to the surrounding environment and prevent pollution.[1] Sewage treatment‚ or domestic wastewater treatment‚ is the process of removing contaminants from wastewater and household sewage‚ both runoff (effluents) and domestic. It includes physical‚ chemical‚ and biological processes to remove physical‚ chemical and biological contaminants. Its objective is to produce an environmentally-safe
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Explain how each of the following landforms are formed including diagrams and annotated photographs. When a river runs over alternating layers of hard and soft rock‚ rapids and waterfalls may form Waterfalls A waterfall is a place where water flows over a vertical drop in the course of a stream or river. Landforms in upland regions are dominantly created by erosion processes‚ where land is worn away. Generally‚ the volume and discharge of rivers in upland regions tends
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Explain the causes of one type of extreme weather. Temperate storm Boscastle flood 2004 A Temperate storm are storms of different types and occurs in the area of 30 to 60 degrees latitude with High Wind speed (39-55 mph + or 63–90 km/h). In 2004 various factors lead to the flooding of Boscastle. Boscastle is a rural village located on the North coast of Cornwall‚ in the South West of England. There are various physical factors which contributed to the flooding of Boscastle. Firstly‚ the storm which
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“GROUND WATER AND ARTIFICIAL RECHARGE IN GUJARAT” ABSTRACT Though groundwater is an important source of irrigation in India‚ its availability is non-uniform in space and time. In Saurashtra region of Gujarat state‚ problem of groundwater depletion has arisen due to high withdrawal than rate of replenishment of groundwater. This also resulted in seawater intrusion in coastal areas at very high rate. The water harvesting and groundwater recharge activities played an important role in increasing the
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desalination of water water‚ desalination of‚ process of removing soluble salts from water to render it suitable for drinking‚ irrigation‚ or industrial uses. The principal methods used for desalination include distillation (or evaporation)‚ electrodialysis‚ freezing‚ ion exchange‚ and reverse osmosis. In distillation saltwater is heated in one container to make the water evaporate‚ leaving the salt behind. The desalinated vapor is then condensed to form water in a separate container. Although long
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Anne Fitricia Professor Kaminsky Writing 301 June 22‚ 2013. Writing Project 2 (Final): Being Amphibious For A While Ever wondered when underwater diving began? Based on the archaeological evidence‚ people have been freediving since 2‚000 years ago (www.aidainternational.org). It first started in Japan‚ where pearl divers began collecting oysters to obtain pearls by diving into the ocean floor with just a single breath. Then‚ in 1943‚ Jacques Cousteau came up with his own invention called
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around the British Empire. In that year‚ the British sent 5 divisions (a division was usually about 15‚000 men) to the front in France. The French army had 72 divisions and the Germans had 122 divisions. The French and Germans both had a system of compulsory military service. This meant all men served about 2 years in the army and gained some basic training and experience. Britain had no such system. Once war began‚ the British Army recruited furiously. By 1916‚ the army was about 1.5 million strong
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World War II was one of the most brutal wars in history. From 1939 to 1945‚ the Axis and Allies fought and many lives were lost. After World War I‚ the “war that was supposed to end all war”‚ many countries were at economic recession and no one was prepared for another war. But‚ unfortunately too many things built up which caused Britain and France to declare war on Germany. There were three main causes of WWII. The Treaty of Versailles was one main reason of World War II. It was a poorly written
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Imminent Water Crisis in India Nina Brooks‚ August 2007 "There will be constant competition over water‚ between farming families and urban dwellers‚ environmental conservationists and industrialists‚ minorities living off natural resources and entrepreneurs seeking to commodify the resources base for commercial gain" -UNICEF report on Indian water.[1] Intro More than two billion people worldwide live in regions facing water scarcity[2] and in India this is a particularly acute crisis. Millions
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PORTLAND CEMENT Chemical composition. Portland Cement is made up of four main compounds: tricalcium silicate (3CaOSiO2)‚ dicalcium silicate (2CaOSiO2)‚ tricalcium aluminate (3CaOAl2O3)‚ and a tetra-calcium aluminoferrite (4CaO Al2O3Fe2O3). In an abbreviated notation differing from the normal atomic symbols‚ these compounds are designated as C3S‚ C2S‚ C3A‚ and C4AF‚ where C stands for calcium oxide (lime)‚ S for silica‚ A for alumina‚ and F for iron oxide. Small amounts of uncombined
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