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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

  • Received : 2016.01.11
  • Accepted : 2016.03.02
  • Published : 2016.03.31

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 ($0.25{\leq}[TiCl_4]{\leq}0.27mM$).

Keywords

Coagulation;Mixing Intensity;pH;Phosphorus;Titanium Tetrachloride

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Acknowledgement

Grant : 물환경정책대응기술

Supported by : 강원대학교산학협력단