연구논문 : 응집공정에 의한 수용액 중의 분산염료의 제거

분야
공학 > 환경공학
저자
한명호 ( Myung Ho Han )
발행기관
한국수처리학회(구 한국수처리기술연구회)
간행물정보
한국수처리학회지 2013년, 제21권 제4호, 49~60페이지(총12페이지)
파일형식
63201122.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    In order to remove the pollutants effectively in the dye wastewater by chemical precipitation process, coagulation and flocculation test were carried out using several coagulants on various reaction conditions. It was found that the Ferrous sulfate was the most effective coagulant for the removal of disperse dye(B79), and we could get the best result for the removal of disperse dye(B56) in the aspects of TOC removal efficiency and sludge yield. When the Ferrous sulfate dosage was 800 ㎎/ℓ, the sludge settling velocity was very fast(SV30=4%), and the color was effectively removed in the disperse dye(B79) solution. Although the color removal was ineffective when the Alum was used as a coagulant, the sludge yield was decreased in comparison with the Ferrous sulfate or the Ferric sulfate was used in the disperse dye(B56) solution. The general color removal effect for the disperse dye(B56 and B79) solutions, the Ferric sulfate was more proper coagulant than the Alum. It was showed that TOC removal was improved 5% and over by the addition of Calcium hydroxide, and 30㎎/ℓ of sludge yield was decreased(B79). When Alum or Ferric sulfate was used as a coagulant, pH condition for most effective color removal was 5 in B56 solution. In case of Ferrous sulfate as a coagulant, most effective pH condition for color removal was 9. When Ferric sulfate or Ferrous sulfate was used as a coagulant, pH condition for most effective color removal was 9 in B79 solution
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