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Tomasz Neumann
 

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TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
www http://www.transnav.eu
e-mail transnav@am.gdynia.pl
Solution to Reduce Air Environmental Pollution from Ships
1 Vietnam Maritime University, Haiphong, Vietnam
ABSTRACT: Exhaust gas emissions from ships are increasingly polluting the air environment seriously. Therefore, the MARPOL 73/78 Annex VI is applied for all ships from 2017, Annex VI provided that the concentrations of NOx,SOx CO contained in ship's exhaust gases must be less than 6.4 g/kWh, 0.6 g/kWh, and 5.5g/kWh respectively. Today, there are many solutions to reduce pollution emissions from exhaust gas of ships, such as improving combustion, using oil emulsion, using biofuel. However, these solutions also have a handful of disadventages such as being unable to thoroughly resoulve problems, high cost, and very difficult to improve the quality of ship exhaust gas emissions for old ships. Exhaust gas treatment method uses a centralized treatment system where exhaust gas from the thermal engines is taken in a centralized treatment system before discharging into the air. After centralized treatment system, in comparision with raw exhaust gas, soot can be reduced by 98%, NOx can be reduced by 75%, SOx can be reduced by 80%. This method of treatment is not only low cost, good quality but also make marine heat-engines still use traditional fuels as well as need not improve its structure.
REFERENCES
Hong Con Hoang, Kim Loan Dong ”Exhaust gas treating techonology”. Hanoi 2006, Published by National University Publisher.
Hong Ha Tran “calculated and measured soot concentration in the exhaust gas of boiler before and after treatment with charing water tower”, 2011, Published by Marine science and technology journals.
Kim Co Hoang “Dust filtration and exhaust gas clean”, 2001, Published by Scientific and technical Publisher.
Ngoc Chan Tran“ Air pollution and air pollution control”, 2001, Published by Scientific and technical Publisher,
Ralf Juergens, Couple Systems GTmbH, Deutscchland “First operational experiences with a combined dry desulphurization plant and SCR unit downstream of a HFO fueled marine engine”, 2013, Published by CIMAC Congrass, Shanghai.
Citation note:
Tân P.H., Tri N.M.: Solution to Reduce Air Environmental Pollution from Ships. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 9, No. 2, doi:10.12716/1001.09.02.14, pp. 257-261, 2015

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