WATER OUR LIFELINE Water is a transparent fluid which forms the world’s streams‚ lakes‚ oceans and rain‚ and is the major constituent of the fluids of living things. As a chemical compound‚ a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water covers 71% of the Earth’s surface.[1] It is vital for all known forms of life. On Earth‚ 96.5% of the planet’s water is found in seas and oceans‚ 1.7% in groundwater‚ 1.7% in glaciers and the ice caps of Antarctica
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Sludge Age 5 to 25 days * Sludge settleabiltiy (SVI ml/g) typically 100-120 * Process Oxygen Demand (POD) * Generally fine bubble diffusers used in modern plant design – actual oxygen transfer efficiency dependent of depth of water column * Blowers capacity – takes account of concentration of oxygen in air‚ α and ß factors for aeration basin * Dissolved Oxygen in aeration basin usually maintained in the range of 0.5 to 2 mg/l * Activated Sludge Process
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untreated sewage is the single most important cause for pollution of surface and ground water in India. There is a large gap between generation and treatment of domestic waste water in India. The problem is not only that India lacks sufficient treatment capacity but also that the sewage treatment plants that exist do not operate and are not maintained.[1] The majority of the government-owned sewage treatment plants remain closed most of the time due to improper design or poor maintenance or lack
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transform it to energy‚ water‚ CO2 and new cell material. Activated sludge systems are suspended-growth type and are used in conventional high-tech wastewater treatment plants to treat almost every wastewater influent such as ‚ brownwater‚ greywater‚ faecal sludge and industrial wastewater as long as it is biodegradable. PART 1: WASTEWATER TREATMENT 1. PRELIMINERY TREATMENT (Primary & Secondary Filtration) Pump station: Water from public channel network and storm water basin enters the inlet
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Does This Thing Work? It operates on a 100 year old proven technology called electrolysis. Whenever you place two pieces of metal in water‚ and apply electricity‚ the water separates into it’s basic molecules‚ Hydrogen and Oxygen (H2O). If you look at the picture on the left‚ you will see H2O molecules connected together in their liquid form which is WATER But when you apply electricity (from your car battery)‚ the molecules separate and form a GAS (called HHO) which is a mixture of Hydrogen
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COMMUNITY TREATMENT PROGRAM 1 Aversion Therapy Christa Anderson Psychology of Learning Instructor Corey Pruitt May 5‚ 2013 COMMUNITY TREATMENT CENTER
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Stance on Ashley treatment Ashley’s treatment’s main purpose is to improve patient’s quality life‚ in other words‚ it makes it easier for the caregivers to take care of the patient. The methods under this treatment include breast bud removal‚ removing uterus to avoid menstruation cramps and limiting final height using estrogen therapy. (Ashley’s Blog‚ 2009) In my opinion‚ Ashley treatment is beneficial for both the patient and the caregivers because it minimizes pain for the patient and also makes
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Essay Amanda Liao 09/05/13 Clean Water In today’s world‚ one of the most basic problems facing our society is the absence of clean water that we use and drink in daily life. The importance of clean water is self-explanatory. In spite of the fact that 70% of the earth’s surface is covered by water‚ there is only 2.53%of fresh water that we can actually use. For the only 2.53% of fresh water‚ some is not safe and clean to use and it is harmful to human body. Polluted water is a big risk to our health‚
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Water: the source of life Water is an indefinable element. It can be destructible and wipe out the strongest forces in the world while it was also the beginning of life. It gives a lot but it can take back more than that. Water is one of the four elements of nature. It’s represented in the liquid form while earth is sold‚ air is gas and fire is the in-between of all. Water is important to every living thing. For plants it’s absorbed from the soil‚ for humans it’s for drinking and use for various
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Water is a chemical compound with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at standard ambient temperature and pressure‚ but it often co-exists on Earth with its solid state‚ ice‚ and gaseous state (water vapor or steam). Water also exists in a liquid crystal state near hydrophilic surfaces. Water is considered a purifier in most religions. Major faiths that incorporate ritual washing (ablution) include Christianity
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