scholarly journals Oil Removal from Oilfield Produced Water, North Rumaila by Combination CoagulationFlocculation and Microfiltration Technique

2019 ◽  
Vol 37 (2C) ◽  
pp. 204-208
Author(s):  
Thamer Mohammed ◽  
Eman Awad ◽  
Thabit Ahmed
Keyword(s):  
Produced Water ◽  
Oil Removal ◽  
Oilfield Produced Water

Oil removal of oilfield-produced water by induced air flotation using nonionic surfactants

2014 ◽  
Vol 56 (7) ◽  
pp. 1802-1808 ◽  
Author(s):  
Syllos Santos da Silva ◽  
Osvaldo Chiavone-Filho ◽  
Eduardo Lins de Barros Neto ◽  
Edson Luiz Foletto
Keyword(s):  
Nonionic Surfactants ◽  
Produced Water ◽  
Oil Removal ◽  
Oilfield Produced Water ◽  
Air Flotation

scholarly journals OIL REMOVAL FROM OILFIELD PRODUCED WATER BY SAND FILTER

2016 ◽  
Vol 10 (3) ◽  
pp. 161-170
Author(s):  
P. C. A. P. Carvalho ◽  
E. L. Foletto ◽  
E. L. Barros Neto ◽  
O. Chiavone-Filho
Keyword(s):  
Produced Water ◽  
Oil Removal ◽  
Sand Filter ◽  
Oilfield Produced Water

scholarly journals Mechanisms of heavy metal and oil removal from synthetic saline oilfield produced water by electrocoagulation

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Mahdieh Mehri ◽  
Narges Fallah ◽  
Bahram Nasernejad
Keyword(s):  
Heavy Metal ◽  
Adsorption Capacity ◽  
Surface Area ◽  
Produced Water ◽  
High Salinity ◽  
Cod Removal ◽  
Oil Removal ◽  
Saline Environment ◽  
Oilfield Produced Water ◽  
Cadmium Adsorption

AbstractIn the present study, an electrocoagulation process was applied to treat saline oilfield-produced water. The kinetics of simultaneous heavy metal and oil removal in the saline environment under different conditions including four-electrode materials of copper, zinc, iron, and aluminum, aeration and agitation rate, oil content, and salinity was investigated. The nature of the electro-generated species and possible abatement mechanisms were explored and compared by using FE-SEM/EDS, FTIR, XRD, and BET analyses. At low and high salinities, cadmium adsorption followed Langmuir and Freundlich models, suggesting the transformation of identical adsorption sites to heterogeneous ones. Cadmium removal efficiencies of 99/73% were obtained at low/high salinity with iron and 99.9 and 82% using copper and zinc electrodes in a saline environment. The cadmium adsorption capacity of different anode materials exhibited the order of copper > zinc > iron > aluminum. The adsorption capacity was considerably reduced in saline condition due to more crystalline structure and lower surface area and porosity of the particles while it was enhanced by the oil, caused by structural changes including more uniform pores, the elevated surface area, and porosity. The COD removal yield of 89% for low salinity and 80/73% at high salinity with/without aeration were achieved by iron. The highest COD removal yield of about 95% was achieved by the aluminum electrodes, compared to 85 and 87% for copper and zinc electrodes. The main removal mechanisms were outer- and inner-sphere complexation, and surface precipitation.

scholarly journals Chemical Oxidation for Oil Separation from Oilfield Produced Water under UV Irradiation Using Titanium Dioxide as a Nano-Photocatalyst by Batch and Continuous Techniques

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Ali A. Hassan ◽  
Khalid M. Mousa Al-zobai
Keyword(s):  
Titanium Dioxide ◽  
Produced Water ◽  
Continuous System ◽  
Chemical Oxidation ◽  
Continuous Treatment ◽  
Light Radiation ◽  
Oil Removal ◽  
Continuous Processes ◽  
Batch System ◽  
Oilfield Produced Water

This research describes the photocatalytic design for oil removal from produced water. It involves batch and continuous processes. The photocatalytic degradation of oil has been conducted in glass reactors. The effects of nano-TiO2 concentration, the number of lamps, and the time of radiation were studied in the batch system, while in the continuous treatment, the number of lamps, the direction of light radiation, and the time of processes were studied. The results showed that all the oil was removed in the batch system and the maximum percentage of oil removal was 71% in the continuous system.

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