pollutants that are added directly to the air. Primary pollutant Natural Source Man-made source Effect on health Methods of reduction Carbon monoxide (CO) Atmospheric oxidation of methane (plant degradation) CH4 + ½ O2 CO + 2 H2 Natural forest fires Incomplete combustion of fossil fuels C8H18 + 8 ½ O2 8 CO + 9 H2O Forest fires Prevents hemoglobin from carrying oxygen by forming carboxyhemoglobin Headaches Shortness of breath Unconsciousness Death Lean-burn engines decrease fuel-air ratio to 18 CO(g)
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manufacturing operations. Particulate control. Methods for particulate control tend to operate on a common principle. The solid particles are separated from the gases in which they are contained by physical procedures such as passage through a settling chamber. A settling chamber is a long‚ wide pipe through which gases from a manufacturing process are allowed to flow. As these gases slow down in the pipe‚ the solid particles settle out. They can then be removed from the bottom of the pipe. A cyclone collector
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Mostly white aquatic bird having long pointed wings and short legs Familiarity information: SEAGULL used as a noun is very rare. Seagulls are birds in the family Laridae. They are most closely related to the terns (family Sternidae) and only distantly related to auks‚ and skimmers‚ and more distantly to the waders. Most gulls however‚ belong to the large family namedLarus. The word Larus is from the Greek word meaning “ravenous sea bird.” The term “Seagull” can be misleading because many species
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Pollution in Coal Based DRI Summer Internship Project‚ 2012 Supervised by Susmita Dasgupta susmita.dasgupta@hotmail.com 1 DRI‚ or directly reduced iron is a method of producing solid iron from iron oxide 2 Iron from iron ore can be • In solid form In solid form‚ iron ore can be 1. DRI produced in coal based kilns 2. HBI produced in gas based kiln. 3. DRI does not need coking coal at all. • Or in molten form In molten form iron can be produced in the 1. Blast Furnace‚ needs coking coal. 2.
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Introduction Water pollution is the contamination of water by foreign substances such as chemicals‚ pesticides‚ animal wastes‚ sewage‚ disease‚ and organic matter. There are two primary sources of water pollution‚ point source and non-point source pollution. Point source pollution originates from specific locations‚ and can bet traced to specific pipes or ditches and is generally waste or effluent from industry or sewage treatment. Non-point source pollution originates from a much broader
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Design construction maintenance of water treatment plant How do treatment plants protect our water? Wastewater treatment plants: * Remove solids‚ everything from rags and plastics to sand and smaller particles found in wastewater; * Reduce organic matter and pollutants--naturally occurring helpful bacteria and other microorganisms consume organic matter in wastewater and are then separated from the water; and‚ * Restore
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Throughout most of history‚ the amount of waste generated by humans was insignificant due to low population density and low societal levels of the exploitation of natural resources. Common waste produced during pre-modern times was mainly ashes and human biodegradable waste‚ and these were released back into the ground locally‚ with minimum environmental impact. Tools made out of wood or metal were generally reused or passed down through the generations. However‚ some civilizations do seem to
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byproducts result in release of air pollutant. Incomplete combustion releases a toxic compound called carbon monoxide in to atmosphere. Natural process may be dangerous at times but not always. Sources of air pollution: Air pollution sources are broadly classified into two types namely * Anthropogenic sources * Combustion of fuel in motor vehicles * Use of hair spray‚ paints and some solvents * Methane release from landfills where wastes are deposited * Smoke from
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AIR QUALITY CONTROL Table of Contents TOPIC | PAGE NUMBER(S) | DEFINITION | | COMMON AIR POLLUTANTS | | MAN-MADE SOURCES | | NATURAL SOURCES | | TECHNICAL BRIEF OF THE GAME | | CONCLUSION | | REFERENCES | | DEFINITION This is also known as atmospheric pollution. It can be classified as ambient (outdoor) air and indoor air. Many materials that are considered contaminants and pollutants are found naturally existing in the atmosphere. A definition
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INTRODUCTION Waste disposal Waste management is the handling of discarded materials. Recycling and composting‚ which transform waste into useful products‚ are forms of waste management. The management of waste also includes disposal‚ such as landfilling. Waste can be almost anything‚ including food‚ leaves‚ newspapers‚ bottles‚ construction debris‚ chemicals from a factory‚ candy wrappers‚ disposable diapers‚ old cars‚ or radioactive materials. People have always produced waste‚ but as industry
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