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Aqua Silencer
AQUA SILENCER

MIDTERM REPORT

Submitted By
ARJUN K.KUTTY 0909090004 arjunkutty@gmail.com 9886513253
RAVEEN VISHNU 090909042 vishnuraveen@gmail.com 7204101611
ASHWATH P.S 090909052 ashwath2050@gmail.com 7204114863 Under the guidance of
Mr. ACHUTHA KINI U

Associate Professor Senior scale

DEPARTMENT OF MECHANICAL AND MANUFACTURING ENGINEERNG | MANIPAL INSTITUTE OF TECHNOLOGY (A Constituent Institution of MANIPAL UNIVERSITY)MANIPAL - 576 104, KARNATAKA, INDIA | | March 2013

1.0 INTRODUCTION Air pollution, is a major topic of discussion from the public health point of view, because every individual person breathes approximately 22000 times a day, inhaling about 15 to 22 Kg of air daily. Air pollution can be defined as addition to our atmosphere of any material, which will have a deteriorating effect on life upon our planet. The main pollutants that are contributed by automobiles are carbon monoxide (CO), unburned hydrocarbon (UBHC), oxides of nitrogen and Lead. In the present world we are concerned about the ill effects the present automobile and industrial sector causes to our environment. The present trends in various sectors are alarming. The following graphs shows the sources of CO2 generated from fossil fuel combustion. Fig 1.0

As it is very clear from the diagram the major chunk is from various industries and automobiles. Motor vehicle emissions are composed of the by-products that come out of the exhaust systems or other emissions such as gasoline evaporation. These emissions contribute to air pollution and are a major ingredient in the creation of smog in some large cities. 1.1 MAIN MOTOR VEHICLE EMMISSIONS
NOx
Mono-nitrogen oxides NO and NO2 react with ammonia, moisture, and other compounds to form nitric acid vapour and related particles. Small particles can



References: * Bansal T K and Sharma H R 1992 Chromium removal by adsorption on rice husk ash. Indian J. Environ. Prot. 12 (3): 198201. * Griffin R A, Au H K and Forest R R 1977 Effect of pH on adsorption of chromium from land fill leach ate by clay minerals. J. Environ. Sci. Health Ser. A 12: 431449. * Gupta M S, Bhargava D S and Varshney B S 1987 Removal of chromium through adsorption on saw dust. J. Inst. Engg. (India) Environ. Eng. 67: 6469. Indian * S. Ristic and Tonkovic M 1986 Sorption of chromium (VI) on hydroxide iron oxides Z. Wass. Abwass. Forsch. 19: 186196. * Prabavathi Nagarajan and Priscilla Prabavathi 2005 A Study of removal of Pb (II) by adsorption technique using carbonized tamarind seed and coast. Indian J. Environ. Prot. 25(5): 433 435. * Singaram P 1994 Removal of Chromium from tannery effluent by using water weeds. Indian J. Environ. Health Vol. 36(3): 197199. * Gupta, R.K., et al. Ecology of polluted waters A.P.H. Publishing Corporation, New Delhi, p. 231-243, (2002).

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