Air pollution is most important 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. Polluted air causes physical ill effect decides undesirable aesthetic and physiological effects. Air pollution can be defined as addition to our atmosphere of any material, which will have a deterious effect on life upon our planet. The main pollutants contribute by automobiles are carbon monoxide (CO), unburned hydrocarbon (UBHC), oxides of nitrogen (Nox) and Lead. Automobiles are not the only source of air pollution, other sources such as electric power generating stations, industrial and domestic fuel consumption, refuse burning, industrial processing etc. also contribute heavily to contamination of our environment so it is imperative that serious attempts should be made to conserve earthâ„¢s environment from degradation. An aqua silencer is an attempt in this direction, it is mainly dealing with control of emission and noise. An aqua silencer is fitted to the exhaust pipe of engine. Sound produced under water is less hearable than it produced in atmosphere. This mainly because of small sprockets in water molecules, which lowers its amplitude thus, lowers the sound level. Because of this property water is used in this silencer and hence its name AQUA SILENCER. The noise and smoke level is considerable less then the conventional silencer, it is cheaper, no need of catalytic converter and easy to install.






Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or damages the natural environment, into the atmosphere.  These substances , called pollutants, can occur naturally or they can be produced by human activities. Natural pollutants include dust, pollen, salt particles, smoke from forest fires, and gases from organic waste. Most pollution caused by human activities is directly or indirectly the result of burning of fuels in furnaces or engines.

The atmosphere is a complex, dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth’s ecosystems.

Air pollution  in the world have emerged as the focus of environmental remediation efforts because of their toxicity and threat to human beings. Due to rapid growth of industrialization and urbanization with new technological advancements, the existing environments are contaminated by emission from automobile and industries containing organics, colour, heavy metal etc. The environment  contamination particularly by air pollutants from industrial effects and their persistence in food chain has been of major concern as it is posing a serious threat to environment including fisheries. Hence the removal of toxic air pollutant contaminants from atmosphere is one of the most important environmental and economic issues today . The ever increasing demand for atmosphere of high quality has caused considerable attention to be focused towards recovery and reuse of pollutants .Many expences models of removal for air pollutants available in devoleped countries but devoleping countries like India thease are not applicable because of its high expences . so very simple methods are welcome.

Among the physico-chemical treatment process adsorption is found to be highly effective, cheap and easy method (Metacalf and Eddy 1972).  Adsorption is by far the most versatile and widely used method.




As the exhaust gases enters in to the aqua silencer, the perforated holes  converts high mass bubbles in lo low mass bubbles after that they passes through charcoal layer which again purify the gases. It is highly porous and posses extra free valences so it has high absorption capacity. After passing over the charcoal layer some of the gases may dissolved in to the water and finally the. exhaust gases escape through the opening in to the atmosphere. Hence aqua silencer reduces noise and pollution.
exhaust gases are analysed. Then 5 g of adsorbent  is taken by weighing accurately. The filter was fixed exhaust hollow pipe. Then the filter fitted with the ic engine. Now engine was started and outgoing gases are analysed at sequence time interval ie 60 min to 360 min. Then weight of adsorbent and flowrates  are changed and analysed.


Good pickup.

Cost of the Engine is less.

Lighter is weight.

Ensures a more uniform rotation of the Crankshaft.

No vibration when the Engine is running.

Starting the Engine Easy.

Control emission

Control noise








This system can be effectively be used for

  • Chetok
  • Tvs 50
  • Tvs max 100R
  • Suzki max 100R