Treatment of an Oil/Grease Wastewater Using Ultrafiltration: Pilot-Scale Results

Reed, Brian E.; Lin, Wei; Dunn, C.L.; Carriere, Patrick; Roark, Gary W.

doi:10.1080/01496399708004062

Cited by 21 publications

(19 citation statements)

References 4 publications

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“…These results, obtained with BSA adsorbed membrane, could be attributed to the fact that the pretreated PCI membrane may be less hydrophilic than the virgin membrane. Oil i s more likely to reside near a less hydrophilic membrane surface, increasing the tendency of oil to be pushed through a membrane pore (Reed et al, 1997a). A second explanation may be given by the properties of the BSA protein, particularly its ability to transport oil and grease, facilitating the passage of oil through an initially large pore reduced by BSA adsorption.…”

Section: Influence Of the Cut-off Of The Membranementioning

confidence: 99%

Treatment of olive mill washing water by ultrafiltration

Mameri¹,

Halet²,

Drouiche³

et al. 2000

Can J Chem Eng

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live oil production is an important economic activity of the Mediterranean countries which, however, unfortunately produces 0 important liquid and solid pollutant.The liquid effluent contains a mixture of oil and water, with many (po1y)phenolic compounds. The low oil concentrations and the antimicrobial polyphenols transform the classical biological processes making it impossible to treat the olive mill washing water effectively. In fact, it is very difficult with the most appropriate biotechnology process (i.e., anaerobic digestion) to reach the depuration efficiencies required by national norms over the Mediterranean region. In particular, methanogenesis, which represents the limiting step in the aerobic digestion of soluble compounds, is severely hindered by one or both of the following factors: the buildup of volatile fatty acids and the presence of a high concentration of phenolic compounds and/or oleic acid in the olive mill effluents (Saez et al., 1992;Boari et al., 1993; Tsonis and Crigoxopoulos, 1993;Beccari et al., 1996; Labat et al ., 1996). In any case, the active anaerobic system left for an extended period does not exceed an abatement ratio of the chemical oxygen demand (COD) in the range of 80% (Tsonis and Crigoxopoulos, 1993). To improve the efficiency and stability of the biological process, a method based on dilution of the olive oil mill effluents has been utilized, although dilution ratios between 1 :60 to 1 :I 00 and the alkalinity additions in the range of 60 equivalents per m3 (Ozturk et al., 1991;Beccari et al., 1996) were required.To solve this problem, membrane processes could offer great advantages. They are especially suitable for separation of oil-water mixtures without adding solvents, since the membrane technique is a physical separation which can be performed at an ambient temperature. These techniques have already been used to treat oil mill washing water. Earlier studies showed that about 99% of the chemical oxygen demand (COD) has been reduced by combining ultrafiltration and reverse osmosis (Rampichini et al., 1987). Canepa et al. (1 988), who studied the influence of the cut-off of polysulfonated organic membranes on the efficiency of the ultrafiltration membranes to treat the oil mill washing water, found that between 50% and 75% of the COD was removed. By adding the reverse osmosis process, this yield was increased to 99%.In the present study, two ultrafiltration modules equipped with an organic and ceramic membranes have been used to treat oil mill washing water under various experimental conditions. The effect of average transmembrane pressure (Po), tangential flow rate (U) and the cut-off membrane on the performance of ultrafiltration was measured. Concentration experiments were performed under the optimized conditions and the environmental impact of the membrane process was evaluated. *Author to whom correspondence may be addressed. E-mail address: nabil.mameri@ courriel.polymtl.ca 590Olive oil production requires important quantities of washing water containing low oil...

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Section: Influence Of the Cut-off Of The Membranementioning

confidence: 99%

Treatment of olive mill washing water by ultrafiltration

Mameri¹,

Halet²,

Drouiche³

et al. 2000

Can J Chem Eng

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“…Several researchers have reported on the effectiveness of microfiltration (MF)/ultrafiltration (UF) in treating oily wastewaters . The removal of oil from oil in water emulsion by a UF membrane was investigated in both laboratory and pilot scale.…”

Section: Introductionmentioning

confidence: 99%

“…The authors reported oil reductions of 95–98% in the UF permeate from an oily wastewater. Reed et al . reported pilot scale results of the treatment of an oil/grease wastewater using UF, with oil/grease removed efficiencies averaging 92–96% and the total suspended solids rejections of approximately 98%.…”

Section: Introductionmentioning

confidence: 99%

Membrane treatment of oily wastewater from refinery processes

Madaeni

Gheshlaghi

Rekabdar³

2012

Asia-Pacific J Chem Eng

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Oily wastewater is produced in oil refining processes. This waste is usually treated by a number of physical, chemical, and biological techniques in water treatment units of oil refinery before being disposed in environment or reused as agricultural water. One of the treatment techniques for oil separation from wastewater is membrane filtration. This paper presents the performances of hydrophilic microfiltration (MF GRM) and ultrafiltration (UF GRM) polymeric membranes challenged with synthetic feed (gas oil dispersed in water) and oily wastewater effluent of American Petroleum Institute unit in refinery. A comparison was carried out under optimum conditions and in cross-flow mode in laboratory scale. The effects of operating parameters (i.e. pressure and cross-flow velocity) on flux and rejection were elucidated. The flux of MF GRM membrane for real feed within the first 2 h of filtration was low compared with synthetic feed because of the presence of solid and colloidal particles in the real feed. The oil rejection (around 99%) for synthetic feed was higher compared with real feed. Similar trend was found for both UF GRM and MF GRM membranes.

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“…Techniques to remove contaminants and dissolved components have previously been reported, for example to remove dispersed oil [19][20] and organic, inorganic and production chemicals 21 . One of the potential techniques, membrane filtration 22 , has been used in oilfield applications to remove most of the sulphate (to around 40 ppm) from injected seawater [23][24][25] thereby significantly reducing the sulphate scaling potential where injected seawater contacts formation water.…”

Section: Introductionmentioning

confidence: 99%

Innovative Concept to Reduce the Total Cost of Scale Management through the Capture and Re-Use of Chemical Inhibitors

Feasey

Graham

Seland

et al. 2002

Proceedings of International Symposium on Oilfield Scale

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractConventional scale inhibitor squeezes are widely used to prevent or delay scale formation. Although long established the process can be wasteful of chemical used. In common with the use of most production chemicals such treatments are 'once through' and non-recoverable with high operating costs. In addition in offshore operations such production chemicals are discharged into the sea. Such discharges are also subject to environmental legislation with associated costs. Increasingly there is a need to avoid such discharges. Modifications of the squeeze procedure have been introduced to extend squeeze lifetime but further improvements are still sought. This paper describes the results of a study to investigate the potential for membrane separation to capture a representative scale inhibitor from brine. Over a range of temperatures, scale inhibitor concentrations and brine chemistries more than 96% of the scale inhibitor was captured. This was obtained without any attempt to optimise operating conditions. The resulting captured material was compared to the original product using dynamic tube blocking tests and static barium sulphate tests. The static tests showed similar performance for recovered and initial material, while the dynamic tests showed a marginal increase in performance for the recovered material in some cases. This increase in performance correlates with the retention factor for each given test run. It is believed that this is due to a slight purification of the inhibitor during the separation process, as shown by Dionex Ion Chromatography. The effective performance of the recovered inhibitor suggests that it could be re-used in a similar manner to the original product.

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Treatment of an Oil/Grease Wastewater Using Ultrafiltration: Pilot-Scale Results

Cited by 21 publications

References 4 publications

Treatment of olive mill washing water by ultrafiltration

Treatment of olive mill washing water by ultrafiltration

Membrane treatment of oily wastewater from refinery processes

Innovative Concept to Reduce the Total Cost of Scale Management through the Capture and Re-Use of Chemical Inhibitors

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