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DC Field | Value | Language |
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dc.contributor.author | Shrivastava, Sachin Kumar | - |
dc.date.accessioned | 2014-11-04T08:20:36Z | - |
dc.date.available | 2014-11-04T08:20:36Z | - |
dc.date.issued | 2002 | - |
dc.identifier | M.Tech | en_US |
dc.identifier.uri | http://hdl.handle.net/123456789/6756 | - |
dc.guide | Mishra, I. M. | - |
dc.guide | Mall, I. D. | - |
dc.description.abstract | Oil-Water emulsions are formed due to dispersion of small stable droplets (dp<3.tm) and/or the mixture of soluble oils in water. Soluble oils in aqueous solutions are used extensively in the engineering metal-working industries, as coolants and/or lubricants. Hysol-X oil is a general purpose cutting oil used in 2-10% concentration in aqueous solution. Central pollution Control Board (CPCB), Delhi has prescribed effluent standards, for several parameters, including that for oil/grease, which is 10 mg/I for effluent discharge into sewers. In view of the CPCB standards, it is necessary that the oil-water emulsion is treated to remove/recover oil so conform to the oil concentration of 10 mg/I in the supernatant aqueous phase for discharge into sewers. Deemulsification or oil splitting for the removal/recovery of oil is carried out by concentrated acid and different coagulants. In the present work, concentrated hydrochloric acid and coagulants/flocculants such as alum, ferric chloride, ferrous sulfate, polyaluminium chloride(PAC SAB-18,obtained from M/S Grasim Industries Ltd., Nagda) and surefloc (obtained from, M/S DSCL chemicals Ltd., Kota) were used to treat ofw emulsion containing 2.5%,5%,7.5% and 10% oil. All the chemicals used, were found to produce pH dependent performance. The optimum flocculation pH, have been found to be 6.0 for alum and surefloc, 7.0 for PAC SAB-18,and 10.0 for FeCI3 and FeSO4.Single stage treatment has been found to be inadequate. However, a two stage treatment has been found to produce aqueous supernatant meeting the prescribed limit of 10 mg/1 of oil. | en_US |
dc.language.iso | en | en_US |
dc.subject | CHEMICAL ENGINEERING | en_US |
dc.subject | OIL EMULSIONS | en_US |
dc.subject | OIL-WATER EMULSIONS | en_US |
dc.subject | DEEMULSIFICATION | en_US |
dc.title | TREATMENT OF OIL EMULSIONS | en_US |
dc.type | M.Tech Dessertation | en_US |
dc.accession.number | G10731 | en_US |
Appears in Collections: | MASTERS' THESES (Chemical Engg) |
Files in This Item:
File | Description | Size | Format | |
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CHD G10731.pdf | 4.64 MB | Adobe PDF | View/Open |
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