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Removal of Phosphate by Using Wasted Sludge of Seafood Processing Factory

  • 최봉종 (관동대학교 건설환경시스템공학부) ;
  • 이승목 (관동대학교 건설환경시스템공학부) ;
  • 김근한 (관동대학교 건설환경시스템공학부)
  • Choi, Bong-Jong (Department of Environmental Engineering, Kwandong University) ;
  • Lee, Seung-Mok (Department of Environmental Engineering, Kwandong University) ;
  • Kim, Keun-Han (Department of Environmental Engineering, Kwandong University)
  • 발행 : 1999.09.01

초록

Phosphate removal through adsorbent, such as activated alumina, powdered aluminum oxide, flyash, blasted furnace slag and other materials, is commonly and widely practiced. The purpose of this study was to improve the removal efficiency of phosphorus in waste sludge earned at seafood processing factories. To investigate the utility and the feasibility of this sludge disposal process, experiment was carried out with a batch process. As a result, phosphate removal appears to increase with increasing adsorbent does, but shows no changes at an adsorbent does over 5g/l. With increasing ratios of initial phosphate concentration to adsorbent does, the amount of removed phosphate is increased while phosphate removal(%) is decreased. Wasted sludge, treated with zinc chloride chemically, represented a better efficiency than the untreated activated sludge and zinc chloride itself, when they reacted with phosphate solution.

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