<h1>Disposal of exhaust gas cleaning residues</h1>
Emissions from diesel engines of vessels and also from marine boilers, contain a variety of substances which are in gaseous vapour form and several of that are categorized as contaminants and others are responsible for environment change effects and for particulate matter. The combustion gas also includes gasses from the fuel and, in the situation of engines, it is from the lubricant. For this, there are exhaust gas cleaning systems which basically eliminates sulphur oxides from the exhaust gases of engines and boilers.
Exhaust Gas Scrubber is an atmospheric emission monitoring instrument which is used to remove particulates, gases, or both from commercial exhaust streams. Scrubbers work similarly to vehicle exhaust systems in that as the engine runs, exhaust is produced. Earlier this exhaust was sent to the environment without any process on the exhaust, but now the time changed and this exhaust is treated properly, therefore it does not harm the ecology and atmospheric air remains clean. Now, when exhaust gas scrubber is used, all the substances which are mainly contaminants and are harmful for environment are eliminated, when this exhaust is moved from the scrubber tower, this is done with the help of spray system which is in the tower. It works, as the water gets mixed with all gases and it eliminates all the contaminants which are not useful and are harmful, when this process is being done at that time the water becomes acidic as the pH of the water is reduced. After that the pH is neutralized, and the water which is remaining which is considered to be as sewage water or water with pollutants is moved to a facility where it is treated and most of its pollutants are eliminated and this treated sewage water passes through some sensor units which checks the water and if this water satisfies the conditions set by the regulations, then it is disposed to the sea.
References:
1. <a href="https://www.egcsa.com/wp-content/uploads/EGCSA-Handbook-2012-A5-size-.pdf
">Egcsa.com</a>
2. <a href="https://www.egcsa.com/technical-reference/what-is-an-exhaust-gas-cleaning-system/
">Egcsa.com</a>
3.<a href=" https://youtu.be/QYJPAeLAZW8
">YouTube</a>
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