Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
권호 표지
DOI QR코드

DOI QR Code

Treatment of Hydrochloric acid from Regeneration and Scrubber system of Cold Rolling Mill Plant with Micro-bubble

마이크로버블을 이용한 냉연 산회수설비공정 발생 염화수소 가스 처리

  • Jung, Yong-Jun (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Jung, Jae-Ouk (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Kim, Ye-Jin (Department of Environmental Engineering, Catholic University of Pusan)
  • 정용준 (부산가톨릭대학교 환경공학과) ;
  • 정재억 (부산가톨릭대학교 환경공학과) ;
  • 김예진 (부산가톨릭대학교 환경공학과)
  • Received : 2015.01.19
  • Accepted : 2015.04.02
  • Published : 2015.05.31
Download PDF
⟨ Previous Next ⟩

Abstract

This work has performed to examine the operation status of regeneration and scrubber system of cold rolling mill plant and established the DIWS(Dip Injection Wet Scrubber) system for the removal of hydrochloric acid with micro bubble. When the initial 22.3 ppm of HCl gas was injected into the system, the average exhaust HCl gas was 0.59 ppm with the removal efficiency of 97.3%. Hydrochloric acid was effectively removed by DIWS system. In the long term monitoring for 10 hours by 5 minutes through TMS(Tele Monitoring System), the average exhaust HCl gas was stably kept 0.69 ppm, which was also verified by manual measurement.

제강산업의 냉연 산회수 설비공정을 검토하였고, 공정에서 발생되는 염화수소 가스를 처리하기 위하여 마이크로버블이 발생되는 DIWS 시스템을 운전하였다. 염화수소 가스의 대기배출허용기준을 만족하기 위해서는 추가공정의 도입이 필요한 것으로 나타났다. DIWS 장치로 유입되는 평균 염화수소 가스의 농도는 22.3 ppm, 배출가스의 농도는 0.59 ppm으로 평균 제거율은 97.3%였다. TMS 장치에 의한 10시간 5분 간격 측정에서도 평균 0.69 ppm으로 안정적이었으며, 수동으로 측정하여 TMS 장치의 신뢰도를 검증하였다.

Keywords

References

  1. Choi, HC (2010). Synthesis and characterization of zero-valent iron using iron oxide produced from acid regeneration process, Doctor thesis. Sunchon National University. [Korean Literature]
  2. Choi, JW, Jeon, SH (1999). A study on coating adehesion of hot rolled galvanized iron manufactured without pickling process, J.of the Korean Institute of Surface Engineering, 32(1), pp. 21-30. [Korean Literature]
  3. Kim, YJ, Jung JO, Jung YJ (2015). Hydrochloric acid gas removal from iron and steel industry using micro-bubbles of a dip injection wet scrubber system, J. Wetlands Research, 17(1), pp. 75-79. [Korean Literature] https://doi.org/10.17663/JWR.2015.17.1.075
  4. Kim, HH (2007). Using wet scrubbing systems to control emissions of hydrogen chloride from industrial processes, Master thesis, Chonnam National University. [Korean Literature]
  5. Kim, KI, Jung, S, Kang, HG, Chang, MH, Yun, SH, Hong, TW (2013). Hydrogen brittleness on welding part SDS bottles, Trans of the Korean Hydrogen and New Energy Society, 24(2), pp. 121-127. [Korean Literature] https://doi.org/10.7316/KHNES.2013.24.2.121
  6. Kim, SS, Kim HJ (2009). Effective treatment of wastewater from the electroplating plant of cold-mill by using microorganism, J. Korean Ind. Eng. Chem., 20(3), pp. 301-306. [Korean Literature]
  7. Kim, YJ, Jung, JO, Jung, YJ (2015). Complex mal-odor treatment of foodwaste with micro-bubble generated from enhanced wet scrubber, J. Environmental Science International, 24(1), pp. 73-79. [Korean Literature] https://doi.org/10.5322/JESI.2015.24.1.73
  8. Lee, KH (2009). A study on the textile wastewater treatment using micro-nano bubbles ozonation system -Focused on biological pretreatment and final effluent reuse-, Doctor thesis. Dong-A University. [Korean Literature]
  9. Ministry of Environment. 2014. Clean Air Conservation Act.
  10. Nam, KH (2007). Paradigm shift in world steel industry & challenges for Korean steel makers, Master thesis. Yonsei University. [Korean Literature]
  11. Park, HK, Lee, JH, Noh, IH (2013). Development of a concentration measurement system for pickling line control, J. of Institute of Control, Robotics and Systems, 19(10), pp. 891-895. [Korean Literature] https://doi.org/10.5302/J.ICROS.2013.13.8007
  12. Park, JW, Kang, KM (2014). Analysis of correlation between the hydrogen embrittlement and the small punch test for hydrogen-charged dual phase steels. J. of the Korean Institute of Gas, 18(1), pp. 61-67. [Korean Literature] https://doi.org/10.7842/kigas.2014.18.1.61
  13. Song, SH, Song, JH (2014). Hydrochloric acid recovering apparatus in particulate scrubber. Patent. [Korean Literature]
  14. Yeo, UG (2008). Study on recycles of waste acid, waste solvent in iron and steel industry. Master thesis. Kyungpook National University. [Korean Literature]
  15. Yeo, WK, Lee, DS, Chung, CY, Lee, SW (1999). Applied facilities and technologies of modernization project in no.1 cold rolling mill, The Korean Society for Technology of Plasticity, pp. 132-141. [Korean Literature]

Cited by

  1. Industrial Wastewater Treatment Containing High Concentration of Ammonia with Low Energy Micro-Bubble Reactor vol.18, pp.3, 2016, https://doi.org/10.17663/JWR.2016.18.3.286