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| 발행년도/권호 |
2005 년 / 권호: V.17,no.2,Apr |
| 논문제목1(원어) |
수용액 중의 염료 제거를 위한 폐수처리공정의 특성(1)- 화학적 응집 및 생물학적 처리 - |
| 논문제목2(타언어) |
Characteristics of The Wastewater Treatment Processes for The Removal of Dyes in Aqueous Solution(1)- Chemical Precipitation or Biological Treatment - |
| 저자(원어) |
1한명호ㆍ허만우 |
| 저자(타언어) |
1Myung Ho Han and Man Woo Huh |
| 소속(원어) |
경일대학교 신소재환경공학과, 경일대학교 섬유패션학부 |
| 소속(타언어) |
Kyungil University |
| 시작/끝
페이지 |
31 ~ 39 총페이지 : 9 |
| 언어(원어) |
Korean |
| 초록 |
This study was conducted to remove the dyes in dye wastewater by the chemical precipitation or
biological treatment which are one of the main pollutants in dye wastewater. In order to remove the disperse dyes
effectively in aqueous solution by chemical precipitation process, coagulation and flocculation tests 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(DB79), and we could get the best result for the removal of
disperse dye(DB56) 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(DB79) solution. Although the color removal was ineffective when the Alum was used as a coagulant,
the sludge yield decreased in comparison with the Ferrous sulfate or the Ferric sulfate being used in the disperse
dye(DB56) solution. In order to decolorize disperse dye(DR17) by using biological treatment process, a strain which
has potential ability to degrade disperse dyes was isolated from natural system. The optimal culture conditions
of temperature and pH were found to be 40℃ and 8.5～9, respectively. When yeast extract was mixed with
polypeptone at the mixing ratio of 1:1 as a nitrogen source, decolorization efficiency was highest(93%) among
the nitrogen sources. The strain screened was excellent to adjust to pH, and it seems to have ability to control
pH needed to growth. The optimal culture conditions in concentration of MgSO4.․7H2O and KH2PO4 were
0.1%(w/v) and 0.2%(w/v), respectively. Strains degrading and decolorizing reactive dyes, RB198 and RR141 which
were isolated from water system, are named RBK1 and RRK. And the cell growth characteristics of RBK1 and
RRK were investigated. The optimal culture conditions of temperature and pH were found to be 30℃ and 7.0,
respectively. Optimum nitrogen source was peptone, and it was found that decolorization efficiencies by strains
RBK1 and RRK, were 85% and 62%, respectively, with introduction of 4,000㎎/ℓ of peptone. In the case of
RBK1, color removal efficiencies were very high below 400㎎/ℓ. Decolorization efficiency was over 90% at
20hours of culture time. The Color degradation ability of RRK was lower than that of RBK1. |
| 키워드 |
Disperse dye, Reactive dye, Chemical precipitation, biological treatment, decolorization efficiency,
coagulant, strain |
| 학회지 |
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| Reference |
http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2005_v17n2s81_31 |
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