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- W754685792 abstract "수리조선소에서 발생하는 TBT 함유 선박세척폐수의 용매추출 처리기술을 개발하기 위한 기초연구로서 인공 선박세척폐수를 이용하여 선박용 및 자동차용 디젤, 벙커 B유, 신너, 톨루엔, 에테르 등의 여러 가지 용매들의 TBT 추출효율을 비교하였으며, 추출효율에 대한 추출용매의 양 및 교반시간, 강도, pH 등의 추출조건의 영향을 평가하였다. 선박용 경유는 신나, 병커B 등에 비해 상대적으로 우수한 TBT 추출효율을 보였으며, 적정 추출용매 주입량은 폐수 IL 당 용매 10mL로 평가되었다 TBT 추출을 위한 교반강도가 50rpm에서 250rpm으로 증가함에 따라 잔류 TBT 농도는 약 120ppb에서 2.8ppb로 크게 감소하였다 잔류 TBT는 추출 1시간이후 크게 감소하였으며, 5시간 이후부터는 다시 증가하였다. 추출효율에 대한 Ph의 영향은 크지 않았으나, pH 6∼7의 약산성영역에서 양호한 추출효율을 보였다. A lab-scale fundamental study to develop the solvent extraction process of ship wash wastewater containing TBT was carried out. For various solvents, including diesels for car and ship, bunker B, thinner, toluene, and ether, the extraction efficiencies of TBT from synthetic ship wash wastewater were compared The effect of extraction conditions, such as solvent amount, time and intensity of agitation, and pH, on the extraction efficiency of TBT was evaluated Diesel for ship showed better extraction efficiency of TBT than those of other tested solvents, and the proper amount of the extraction solvent for 1L of the wastewater was l0mL. When the agitation intensity was increased from 50rpm to 250rpm, the TBT remained in the wastewater after the extraction was decreased from around 120ppb to 2.8ppb. The remaining TBT in the wastewater was sharply decreased from 1hr of the extraction time, but was slightly increased again after 5hrs of the extraction time. The efficiency of TBT extraction was good in the weak acid range of pH, but was not significant as much as the others." @default.
- W754685792 created "2016-06-24" @default.
- W754685792 date "2004-06-01" @default.
- W754685792 modified "2023-09-25" @default.
- W754685792 title "Solvent Extraction of Organotin from Ship Wash Wastewater" @default.
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- W754685792 doi "https://doi.org/10.5394/kinpr.2004.28.5.463" @default.
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