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- E-ISSN 2288-8985
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Collecting of Hanji Fibrous Sludge with Surfactant
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2001, v.14 no.2, pp.167-172
Choi,
H., &
Kim,
T.
(2001). Collecting of Hanji Fibrous Sludge with Surfactant. Analytical Science and Technology, 14(2), 167-172.
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Abstract
The technique that could collect efficiently the hanji fibrous sludge from wastewater using surfactants was developed. When fibrous sludge of which concentration was about 80mg/L, was floated and collected, the optimum concentration of sodium oleate, the pore size of glass filter and the air flow rate were 10mg/L, <TEX>$5-10{\mu}m$</TEX> and 200mL/min., respectively. The behavior of sodium oleate might be interfered by polyvalent cations such as <TEX>$Ca^{2+}$</TEX>. But when the concentration of <TEX>$Ca^{2+}$</TEX> was less than 100mg/L, the interference effect did not appear. And when a typical cationic surfactant, cetyltrimethylammonium bromide(CTAB), was used, the collecting yield was less than that of sodium oleate, and the amount of foam was higher than sodium oleate. When 1mg/L of CTAB was added to the hanji sludge sample contained 1mg/L of <TEX>$PAMID^{(R)}$</TEX>, a dispersant, fibrous sludge was effectively coagulated, the flotation time was very short and the collecting yield was above 95%. But in the case, sodium oleate was inefficient.
- keywords
- fibrous sludge, sodium oleate, cetyltrimethylarnmonium bromide, surfactants, <TEX>$PAMID^{(R)}$</TEX>
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