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KMID : 1024520150240121609
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Journal of the Environmental Sciences
2015 Volume.24 No. 12 p.1609 ~ p.1616
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Applicability of SBR and MBR Combined Process Meets the Water Quality Standards of MEPC. 227(64)
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Jung Jin-Hee
Lee Seung-Chul
Lee Seul-Kee
Han Young-Rip
Choi Young-Ik
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Abstract
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The objective of this study was to make a SBR+MBR complex process to evaluate the possible use of the advanced water
treatment system for ships (SBR+MBR complex process) in accordance with the amendments MAPOL 73/78 that went into
effect. The conditions 1 and 2 did not show the quick reduction in anaerobic condition while in the precipitation and stirring
stages of the SBR treatment which was determined to be ineffective denitrification, same as with the ORP. Removal of organic matters such as BOD5 and CODCr in the SBR treatment was observed to happen smoothly and going through the MBR treatment as well would provide a stable water quality. However, the results were not satisfactory in accordance with BOD5 25mg/L and CODCr 125 mg/L. Thus, the operating conditions improvement is deemed necessary. Likewise for the nutrients (T-N and T-P), the nitrification in bioreactor, denitrification and phosphorus absorption in aerobic tank due to phosphorus release in anaerobic tank had not been proceeded effectively. It was concluded that the improved operating conditions and structural changes would provide more effective treatments since the removal rates of T-N and T-P were less than 70% and 80%,respectively, which were standards specified by the MEPC. 227(64).
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KEYWORD
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IMO, MEPC. 227(64), MARPOL, SBR, MBR, DO, ORP, T-N
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