화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
HWAHAK KONGHAK, Vol.38, No.2, 269-276, April, 2000
Export Citation
활성탄을 첨가한 연속 회분식 반응조(SBR) 운전에 미치는 중금속 및 phenol의 영향
Effects of Heavy Metals and Phenol on the Operation of Sequencing Batch REactor Added Activated Carbon
이상훈, 임지훈, 박철환, 김상용1, 박진용2, 이용면3, 이진원†
  • 광운대학교 공과대학 화학공학과, 서울 139-701
  • 1한국생산기술연구원
  • 2한림대학교 환경학과
  • 3(주)오성 엔비태크
Sanghoon Lee, Jihun Lim, Chulhwan Park, Sangyong Kim1, Jinyong Park2, Yongmyun Lee3, and Jinwon Lee†
  • Department of Chemical Engineering, Kwangwoon University, Seoul 139-701, Korea
  • 1Korea Institute of Industrial Technology, Korea
  • 2Department of Environmental Engineering, Hallym University, Korea
  • 3Osung Envi-Tech Company, Korea
E-mail:
초록
본 연구에서는 연속 회분식 반응조(sequencing batch reactor, SBR)에 활성탄을 첨가한 공정을 대상으로 삼았다. 활성탄이 첨가된 연속 회분식 반응조의 유기물 제거와 중금속이나 난분해성 물질이 미치는 영향을 파악하고자, 3종류의 입상 활성탄을 대상으로 실험을 하였다. SCOD(soluble chemical oxygen demand) 감소 효율에 대하여 살펴보았으며, 흡착 등온식(adsorption isotherm)에 의한 이론적 흡착량(adsorbed loading)과 실제 감소량(apparent loading)의 비교로 생물학적 활성(biological activity)의 시너지 효과(synergistic effects)를 확인하였다. 활성탄-연속 회분식 반응조 공정은 연속 회분식 반응조만을 운전하였을 때보다 약 16%의 처리 효율이 증가하였는데, Freundlich 흡착 등온식에 의한 이론적 흡착량과 실제 감소된 SCOD량을 비교함으로써 활성탄 첨가 공정의 처리 효율 증가가 단지 활성탄 흡착량만이 아니고, 생물학적 활성의 시너지 효과가 있음을 증명하였다. 중금속이나 난분해성 물질이 유입되었을 경유의 연속 회분식 반응조에 있어서의 저해(inhibition)현상을 살펴보았으며, 활성탄을 첨가하였을 때 이러한 저해 영향을 감소시키는 효과를 정량적으로 측정하였다. Pb, Cd, Cr, phenol을 저해체(inhibitor)로서 실험하였는데, Pb가 10mg/L인 생활하수에 활성탄(PK1-3)을 500mg/L로 주입하였을 경우에는 주입하지 않은 경우보다 처리율이 32.6% 증가되었고, Cd의 경우는 22.3%, phenol의 경우는 9.4%의 처리효율이 각각 증가되었다.
The process of sequencing batch reactor(SBR) added the activated carbon were studied. To investigate the influence of the activated carbon on the treatment of organic materials and the effects of heavy metals on the process, three different kinds of granular activated carbons(GAC) were tested. The decrease of SCOD(soluble chemical oxygen demand) was measured at the different concentration of the activated carbon. Synergistic effects of GAC on the biological activity in the SBR were confirmed from the data comparing adsorbed loadings with apparent loadings. When SBR was operated with GAC, the efficiency of wastewater treatment increased 16%. By comparing the adsorped amount of SCOD estimated from Freundlich isotherm and the decrease of apparent loading, biological synergistic effect was confirmed. The inhibition of SBR performance from heavy metals of toxic chemicals could be reduced when GAC was added into the SBR process. Pb, Cd, Cr and phenol were tested as typical inhibitors. When 10mg/L inhibitor was introduced into the SBR process which includes 500 mg/L GAC, the efficiency was increased as 32.6%, 27.2%, 22.3% and 9.4%, respectively.
Keywords:Sequencing Batch Reactor(SBR);Activated Carbon;Heavy Metal;Soluble Chemical Oxygen Demand (SCOD);Wastewater
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