지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.9
- 수록면
- 137 - 148 (12page)
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초록· 키워드
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In this study, a series of experiments was conducted on the relative degradation of commonly known endocrine-disrupting compounds such as bisphenol A (BPA) and 17α-ethinyl estradiol (Ee₂) in a single-component aqueous solution using 28 and 580 kHz ultrasonic reactors. The experiments were conducted with three different types of model water: deionized water (DI), synthetic brackish water (SBW), and synthetic seawater (SSW) at pH 4, 7.5, and 11 in the presence of inert glass beads and humic acids. Significantly higher sonochemical degradation (93-97% for BPA) occurred at 580 kHz than at 28 kHz (43-61% for BPA), regardless of water type. A slightly higher degradation was observed for Ee₂ compared to that of BPA. The degradation rate of BPA and Ee₂ in DI water, SBW, and SSW after 30 min of ultrasound irradiation at 580 kHz increased slightly with the increase in pH from 4 (0.073-0.091 min-1 for BPA and 0.081-0.094 min-1 for Ee₂) to 7.5 (0.087-0.114 min-1 for BPA and 0.092?0.124 min-1 for Ee₂). In contrast, significant degradation was observed at pH 11 (0.149-0.221 min-1 for BPA and 0.147-0.228 min-1 for Ee₂). For the given frequencies of 28 and 580 kHz, the degradation rate increased in the presence of glass beads (0.1 mm and 25 g) for both BPA and Ee₂: 0.018-0.107 min-1 without beads and 0.052-0.142 min-1 with beads for BPA; 0.021-0.111 min-1 without beads and 0.054-0.136 min-1 with beads for Ee₂. A slight increase in degradation of both BPA and Ee₂ was found as the concentration of dissolved organic carbon (DOC, humic acids) increased in both SBW and SSW: 0.107-0.115 min-1 in SBW and 0.087-0.101 min-1 in SSW for BPA; 0.111-0.111 min-1 in SWB and 0.092-0.105 min-1 in SSW for Ee₂. After 30 min of sonicating the humic acid solution, DOC removal varied depending on the water type: 27% (3 mg L-1) and 7% (10 mg L-1) in SBW and 7% (3 mg L-1) and 4% (10 mg L-1) in SSW.
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등록된 정보가 없습니다.
참고문헌 (64)
참고문헌 신청
Service RF / 2006 / Desalination freshens up / Science 313:1088~1090
Sanza MA / 2007 / Fujairah reverse osmosis plant: 2 years of operation / Desalination 203:91~99
Sauvet-Goichon B / 2007 / Ashkelon desalination plant--a successful challenge / Desalination 203:75~81
김승현 / 2009 / Pre-treatment strategies for seawater desalination by reverse osmosis system / DESALINATION 249:308~316
Al-Amoudi AS / 2010 / Factors affecting natural organic matter (NOM) and scaling fouling in NF membranes: a review / Desalination 259:1~10
Sanza MA / 2007 / Fujairah reverse osmosis plant: 2 years of operation / Desalination 203:91~99
Sauvet-Goichon B / 2007 / Ashkelon desalination plant--a successful challenge / Desalination 203:75~81
김승현 / 2009 / Pre-treatment strategies for seawater desalination by reverse osmosis system / DESALINATION 249:308~316
Al-Amoudi AS / 2010 / Factors affecting natural organic matter (NOM) and scaling fouling in NF membranes: a review / Desalination 259:1~10
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UCI(KEPA) : I410-ECN-0101-2017-539-001547961