In situ oil/water separation using hydrophobic-oleophilic fibrous wall: a lab-scale feasibility study for groundwater cleanup

Journal of Hazardous Materials
Teik-Thye Lim, Xiaofeng Huang

Abstract

Kapok, a natural plant fiber, possesses excellent hydrophobic-oleophilic characteristics. Its innovative use as hydrophobic-oleophilic wall that allows permeation of oil but not water into an oil recovery well is proposed. Its performance was investigated through laboratory experiments, in which diesel was used as the experimental oil. A two-dimensional hydraulic flume was setup to physically model the oil/water separation by the kapok wall. The influences of packing density, kapok wall thickness and oil thickness on the oil recovery rate were examined. The oil permeability of the packed kapok decreased from 0.0165 cm2 at 34 g/L packing density to 0.0038 cm2 at 70 g/L packing density. The kapok wall exhibited complete rejection of water while allowed oil to permeate through. The excellent oil/water separation by the kapok wall was due to surface interaction between the kapok fibers and the oil, which resulted in spontaneous penetration and permeation of the oil through the kapok wall. The oil recovery rate increased with thickness of the oil layer in the feed stream. When the oil thickness exceeded 60 mm, a constant flux of 3.8-5.0, 3.2-3.3 and 2.5-2.7 L/(m2 min) could be achieved by the kapok wall of 55-, 75- and 95-mm thick, ...Continue Reading

Citations

Nov 2, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·D SevenoJ De Coninck
May 6, 2014·Journal of Environmental Management·Aušra MažeikienėVaidotas Vaišis
Apr 29, 2015·Journal of Hazardous Materials·Ting DongFumei Wang
Jun 30, 2016·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Rahul RamachandranMichael Nosonovsky
Oct 10, 2013·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Na LiuYen Wei
Jul 21, 2020·Scientific Reports·Tatianna MarshallErica Pensini
Nov 20, 2020·Journal of Hazardous Materials·Veroneka SemilinSharif H Zein
Jan 18, 2019·Journal of Hazardous Materials·Guangming JiangXiaoshu Lv
Mar 5, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Yao-Tsan TsaiEui-Hyeok Yang
Jan 8, 2020··Dainius PaliulisJurgita Aleknaitė

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