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Phenol removal from wastewater using a phase separation of cationic-anionic surfactant mixture solution in continuous mixer-settler

หน่วยงาน จุฬาลงกรณ์มหาวิทยาลัย

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ชื่อเรื่อง : Phenol removal from wastewater using a phase separation of cationic-anionic surfactant mixture solution in continuous mixer-settler
นักวิจัย : Settha Intasara
คำค้น : Sewage -- Purification -- Phenol removal
หน่วยงาน : จุฬาลงกรณ์มหาวิทยาลัย
ผู้ร่วมงาน : Punjaporn Weschayanwiwat , Scamehorn, John f. , Chulalongkorn University. Graduate School
ปีพิมพ์ : 2549
อ้างอิง : http://cuir.car.chula.ac.th/handle/123456789/14713
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : -
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Thesis (M.Sc.)--Chulalongkorn University, 2006

Some cationic-anionic surfactant mixtures can spontaneously separate into two phases called aqueous surfactant two-phase system (ASTP). The separated phases are the micellar-rich phase and micellar-dilute phase. The organic compound present in the solution tend to solubilize and concentrate in the rich phase. The system is utilized as separation technique to remove phenol from wastewater in a continuous vessel at ambient temperature. Two moles of dodecyltrimethylammonium bromide (DTAB) and one mole of alkyldiphenyloxide disulfonate (ADPODS or trade name in DOWFAX 8390) were mixed and used as extracting agent. The mixer-settler was used as the continuous extractor in this study because it yields high throughput with less complication in term of vessel design and operation. The effects of degree of mixing in the mixer (via agitator speed), surfactant solution to wastewater flow rate ratio, and the number of settlers were investigated. The concentration of phenol in the effluence dilute phase decreases with increasing agitator speed, surfactant solution to wastewater flow rate ratio and number of settlers. It was found that the percentage of phenol removal achieved from this continuous extractor was approximately 74 % which was higher than that observed in a single stage, batch extraction at equilibrium condition at the same initial conditions. The optimal operation condition was 700 rpm of agitator speed, 81.9 mM of total surfactant concentration obtained by 0.12 surfactant to wastewater flow ratio and three settlers. Moreover, the higher degree of hydrophobicity of contaminant showed the greater potential of contaminant to be extracted in the surfactant-rich phase in the following order: 4-chlorophenol > 2-chlorphenol > phenol.

บรรณานุกรม :
Settha Intasara . (2549). Phenol removal from wastewater using a phase separation of cationic-anionic surfactant mixture solution in continuous mixer-settler.
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย.
Settha Intasara . 2549. "Phenol removal from wastewater using a phase separation of cationic-anionic surfactant mixture solution in continuous mixer-settler".
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย.
Settha Intasara . "Phenol removal from wastewater using a phase separation of cationic-anionic surfactant mixture solution in continuous mixer-settler."
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย, 2549. Print.
Settha Intasara . Phenol removal from wastewater using a phase separation of cationic-anionic surfactant mixture solution in continuous mixer-settler. กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย; 2549.