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Application of Cationic Cetyltrimetheylammonium Chloride Surfactant to Collecting of Hanji Sludge
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2002, v.15 no.2, pp.157-162
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(2002). Application of Cationic Cetyltrimetheylammonium Chloride Surfactant to Collecting of Hanji Sludge. Analytical Science and Technology, 15(2), 157-162.
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Abstract
A technique which could collect the traditional and the industrial hanji fibrous sludge efficiently from wastewater using a cationic surfactant cetyltrimethylammonium chloride (CTAC) was developed. When the concentration of CTAC was <TEX>$1{\mu}g/mL$</TEX> in wastewater that the amount of the traditional hanji fibrous sludge was about 0.08 g/L, the collecting yield was more than 95% and the collecting time was less than 30 sec. When only CTAC was used to collect the industrial hanji fibrous sludge, about 90% of collecting yield was obtained at more than <TEX>$15{\mu}g/mL$</TEX> CTAC. But the sludge layer at the surface of solution was not stabilized and the flotation time was relatively longer. And, when <TEX>$5{\mu}g/mL$</TEX> CTAC and various amount of PAMID<TEX>$^{(R)}$</TEX> was added to the industrial hanji sludge, the collecting yield was increased and sludge layer also was more stabilized. But the collecting yield was higher in the traditional hanji sludge than in the industrial hanji sludge.
- keywords
- CTAC, traditional hanji fibrous sludge, industrial hanji fibrous sludge, collecting yield
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