Author: Md Taifur Rahman (46E, BMA)
Under regulation 4 of MARPOL Annex VI the exhaust gas cleaning systems (scrubber) are excepted based on the criteria described on the guideline (resolution MEPC 259(68)). Wash water parameters limit was set for PH, PAH, Turbidity and Suspended particle maters and Nitrate.
To fulfil the specific requirements of the regulations three types of scrubber are being used which are generally designed to retrofit.
- Open Loop
- Closed Loop