Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Coagulation Characteristics of Wastewater Treatment Process Using Completely Mixed Chamber

완전 혼화조를 이용한 폐수처리 공정의 응집특성

  • 김동준 (전남대학교(여수) 자동차시스템공학과) ;
  • 박상규 (전남대학교(여수) 기계자동차공학부) ;
  • 이용호 (전남대학교(여수) 기계자동차공학부) ;
  • 양희천 (전남대학교(여수) 기계자동차공학부)
  • Published : 2009.11.30
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Abstract

The objective of this study is to investigate the coagulation characteristics of the completely mixed chamber for wastewater treatment. The completely mixed chamber system was composed of the reservoirs, the three-stage mixing and coagulation part with propeller impeller, the injection parts of coagulants, a sedimentation tank and a control panel. Wastewater sample of pH 8.5 and initial turbidity 1,000NTU was prepared using sludge taken from a tunneling work site. The efficiency of turbidity removal with increasing the dosage of coagulant aids increased by about 99%. Increasing coagulant above the optimal dosage, however, the efficiency of turbidity removal decreased.

본 논문은 완전 혼화조를 이용한 폐수처리 공정의 응집특성에 대한 연구를 목적으로 한다. 완전 혼화조 시스템은 유체 저장조, 임펠러가 장착된 3단의 혼화 및 응집부, 응집보조제 및 응집제 주입부, 응집 침전조 그리고 제어부로 구성된다. 실험용 폐수는 터널 공사현장에서 폐수 슬러지를 수거하여 약 1,000NTU의 탁도를 갖도록 만들었다. 응집보조제의 주입량이 증가함에 따라 약 99% 정도까지 탁도 제거율이 증가하였으며, 응집제의 주입량이 일정한 범위 이상으로 증가하면 탁도 제거율이 감소하는 것을 알 수 있다.

Keywords

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