Biological treatment of oilfield-produced water: A field pilot study

2009 ◽  
Vol 63 (3) ◽  
pp. 316-321 ◽  
Author(s):  
Mang Lu ◽  
Zhongzhi Zhang ◽  
Weiyu Yu ◽  
Wei Zhu
Keyword(s):  
Pilot Study ◽  
Biological Treatment ◽  
Produced Water ◽  
Oilfield Produced Water

Using Biological Treatment of Henan Oilfield -Produced Water: Pilot Plant Test Study

2011 ◽  
Vol 361-363 ◽  
pp. 593-597
Author(s):  
Feng He ◽  
Peng Cheng Fu ◽  
Chun Ming Xu
Keyword(s):  
Biological Treatment ◽  
Produced Water ◽  
Oxygen Demand ◽  
Test Study ◽  
Crude Oil Production ◽  
Pilot Plant Test ◽  
Plant Test ◽  
Oilfield Produced Water ◽  
Contact Oxidation

Biological treatment of heavy crude oil production wastewater is well-established method for remediation of these wastes. We have developed effective biological treatments by (1) utilizing microbes with high oil-degrading abilities, (2) allowing greater organic loads while increasing both process stability and the resistance to shock loading, (3) minimizing the production of waste sludge byproducts, and (4) adopting anaerobic and aerobic biological processes to improve the biodegradation of the wastewater. Fixed-film bioreactors with 15h hydraulic retention times have decreased chemical oxygen demand by 74.8%, total suspended solids by 90.9%, oil by 80.6%, and phenols and sulfides by 100%. The results with an in situ pilot system show that the bioreactor's hydrolytic acidulation and contact oxidation tanks are suitable for treating oilfield wastewater, and that water quality after treatment fully meets national drainage standards.

Hydrogen-driven denitrification of wastewater in an anaerobic submerged membrane bioreactor: potential for water reuse

2006 ◽  
Vol 54 (11-12) ◽  
pp. 207-214 ◽  
Author(s):  
B. Rezania ◽  
J.A. Oleszkiewicz ◽  
N. Cicek
Keyword(s):  
Organic Carbon ◽  
Water Reuse ◽  
Biological Treatment ◽  
Membrane Bioreactor ◽  
Hydrogen Transfer ◽  
Produced Water ◽  
Treatment Unit ◽  
Submerged Membrane Bioreactor ◽  
Delivery Unit ◽  
Final Effluent

An anaerobic submerged membrane bioreactor was coupled with a novel hydrogen delivery system for hydrogenotrophic denitrification of municipal final effluent containing nitrate. The biological treatment unit and hydrogen delivery unit were proven successful in removing nitrate and delivering hydrogen, respectively. Complete hydrogen transfer resulted in reducing nitrate below detectable levels at a loading of 0.14 kg N m−3 d−1. The produced water met all drinking water guidelines except for color and organic carbon. However, the organic carbon was removed by 72% mostly by membrane rejection. To reduce the organic carbon and color of the effluent, post treatment of the produced water is required.

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