선박용 대기오염장치 폐세정수 내 질산염의 선택적 제거를 위한 이온교환수지 공정 성능 평가

국문 초록 (Abstract)

2020년 1월 1일부터 국제해사기구(International Maritime Organization, IMO)는 선박 대기오염 규제를 지속적으로 강화하고 있으며, 배출규제해역이 아닌 일반해역을 운항하는 전 세계 모든 적용대상 선박에 대하여 황함유량 0.5 %를 초과하지 않는 연료유를 사용하거나 이에 준하는 대기오염 배출기준을 만족하도록 결정하였다. 최근 습식 스크러버를 통한 본 규정의 대기오염 배출기준을 만족시키려는 연구가 진행되고 있으나, 이 기술은 폐세정수를 동시에 유발하는 문제점이 있다. 본 연구에서는 국제해사기구의 폐세정수 배출 기준을 준수하기 위한 이온교환수지 공정의 성능을 평가하였다. 모사폐세정수를 사용하여 실험실 규모의 회분식 및 연속식 실험을 진행하였다. 실험 결과 모사폐세정수의 높은 총용존고형물에도 불구하고 이온교환수지 특성에 따라 선택적으로 질산염의 제거가 효율적으로 이루어짐을 확인하였다. 추가적으로 다양한 운영조건을 최적화함에 따라서 제거 효율을 개선할 수 있었으며, 이를 통하여 국제해사기구의 폐세정수 배출수 수질 기준을 만족할 수 있을 것으로 판단된다.

다국어 초록 (Multilingual Abstract)

From 1 January 2020, the limit for Sulphur in fuel oil used on board ships operating outside designated emission control areas will be reduced to 0.5 %. This regulation by international maritime organization (IMO) is able to significantly reduce the amount of Sulphur oxides (SOx) discharging from ships and should have environmental advantages and health for all over the world. To meet the regulation, in these days, wet scrubber system is being actively developed. However, this process leads to make washing wastewater. In this study, we evaluated ion exchange resin system in accordance with scrubber wastewater discharge regulation by IMO. Theoretical wastewater used as feed solution of lab scale water treatment systems. The results revealed that nitrate ion was removed selectively in spite of high TDS wash wastewater solution depending on ion exchange resin property. Moreover, it was possible to improve efficiency of the system by optimizing operating conditions.

목차 (Table of Contents)

• ABSTRACT
• 초록
• 1. 서론
• 2. 연구방법
• 3. 결과 및 고찰
• 4. 결론
• References

참고문헌 (Reference)

1 Bernard, S. M., "The potential impacts of climate variability and change on air pollution-related health effects in the United States" 109 (109): 199-209, 2001

2 Teuchies, J., "The impact of scrubber discharge on the water quality in estuaries and ports" 32 (32): 103-, 2020

3 Zhou, J., "Study on efficient removal of SOx and NOx from marine exhaust gas by wet scrubbing method using urea peroxide solution" 390 : 124567-, 2020

4 Li, L., "Ship’s response strategy to emission control areas: From the perspective of sailing pattern optimization and evasion strategy selection" 133 : 101835-, 2020

5 Du, X., "Rapid determination of nitrate in drinking water using ion-exchange-enhanced infrared spectroscopy" 42 (42): 13164-, 2019

6 Han, Z., "NOX Removal from Simulated Marine Exhaust Gas by Wet Scrubbing Using NaClO Solution" 2017 : 9340856-, 2017

7 Kontovas, C. A., "Integration of air quality and climate change policies in shipping: The case of sulphur emissions regulation" 113 : 103815-, 2020

8 Shimaoka, T., "Heavy metal elution characteristics from municipal solid waste scrubber residue by a centrifugation method" 1 : 595-603, 2000

9 Praetorius, B., "Greenhouse gas mitigation in a carbon constrained world: The role of carbon capture and storage" 37 (37): 5081-5093, 2009

10 Kennedy, C., "Greenhouse gas emissions from global cities" 43 (43): 7297-7302, 2009

11 Liu, L., "Environmentally extended input-output simulation for analyzing production-based and consumption-based industrial greenhouse gas mitigation policies" 232 : 69-78, 2018

12 Amoatey, P., "Emissions and exposure assessments of SOX, NOX, PM10/2.5 and trace metals from oil industries: A review study (2000-2018)" 123 : 215-228, 2019

13 Rabah, M. A., "Cleaning wastewater of wet scrubber in secondary lead smelters using cationic polyacrylamide" 5 (5): 250-264, 2013

14 Rokicki, C. A., "Bicarbonate-form anion exchange: Affinity, regeneration, and stoichiometry" 45 (45): 1329-1337, 2011

15 Ammar, N. R., "An environmental and economic analysis of emission reduction strategies for container ships with emphasis on the improved energy efficiency indexes" 27 : 23342-23355, 2020

16 Jiang, K., "An advanced, ammonia-based combined NOX/SOX/CO2emission control process towards a low-cost, clean coal technology" 260 : 114316-, 2020

17 Endres, S., "A new perspective at the ship-air-sea-interface: The environmental impacts of exhaust gas scrubber discharge" 5 : 139-, 2018