Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Effect of TiCl4 Concentration and Mixing Intensity on Phosphorus Removal in Synthetic Wastewater

TiCl4 농도와 교반강도가 수중 인 제거에 미치는 영향

  • Seo, Wan-Woo (Department of Environmental Engineering, Kangwon National University) ;
  • Lee, Bong-Hee (Department of Environmental Engineering, Kangwon National University) ;
  • Park, Hwa-Soo (Department of Environmental Engineering, Kangwon National University) ;
  • Kim, Jong-Ho (Department of Applied Chemical Engineering, Chonnam National University) ;
  • Ahn, Johng-Hwa (Department of Environmental Engineering, Kangwon National University)
  • 서완우 (강원대학교 환경공학과) ;
  • 이봉희 (강원대학교 환경공학과) ;
  • 박화수 (강원대학교 환경공학과) ;
  • 김종호 (전남대학교 응용화학공학부) ;
  • 안종화 (강원대학교 환경공학과)
  • Received : 2016.01.11
  • Accepted : 2016.03.02
  • Published : 2016.03.31
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Abstract

This study evaluates the efficacy of titanium tetrachloride ($TiCl_4$) on phosphorus (P) removal in synthetic wastewater. Jar test experiments were performed at various $TiCl_4$ concentration (0.25-0.59 mM), and intensities of slow (30-60 rpm) and rapid (100-250 rpm) mixings to determine the conditions at which P removal was most efficient. The P-removal efficiency was highest (about 99%) at $TiCl_4$ concentration $([TiCl_4])=0.39mM$ with rapid-mixing intensity=100 rpm and slow-mixing intensity=30 rpm. The slow-mixing intensity was more sensitive than the rapid-mixing intensity to the P removal efficiency when [$TiCl_4$] was low ($0.25{\leq}[TiCl_4]{\leq}0.27mM$).

본 연구는 $TiCl_4$의 농도(0.25-0.59 mM)와 급속교반속도(100-250 rpm), 완속교반속도(30-60 rpm)의 변화가 인 제거효율에 미치는 영향을 알아보고자 하였다. 응집제 농도가 $0.25{\leq}[TiCl_4]{\leq}0.39mM$ 범위에서 인 제거 효율은 $TiCl_4$의 농도가 증가 할수록 증가하였으며 처리후 인의 농도는 0.2 mg/L 이하였다. 응집제 농도 0.39 mM, 급속교반속도 100 rpm, 완속교반속도 30 rpm에서 인 제거효율이 약 99%로 가장 높았다. $TiCl_4$의 농도가 낮을 경우(0.25-0.27 mM) 인제거효율의 편차는 급속교반속도 변화(2-3%)보다 완속교반속도 변화(7-10%)에서 더 민감하였다.

Keywords

References

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