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.

Biological Treatment of Wastewater from the Exploitation of Heavy Oil

2013 ◽  
Vol 807-809 ◽  
pp. 1223-1226
Author(s):  
Feng He ◽  
Hua Zhou ◽  
Hong Ru Liu
Keyword(s):  
Biological Treatment ◽  
Suspended Solids ◽  
Shock Loading ◽  
Oxygen Demand ◽  
Biological Processes ◽  
Waste Sludge ◽  
Crude Oil Production ◽  
Contact Oxidation ◽  
Heavy Crude

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 anin situpilot 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.

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

Iridium oxide-based chemical sensor for in situ pH measurement of oilfield-produced water under subsurface conditions

Ionics ◽  
2014 ◽  
Vol 21 (3) ◽  
pp. 855-861 ◽  
Author(s):  
Jianjia Yu ◽  
Munawar Khalil ◽  
Ning Liu ◽  
Robert Lee
Keyword(s):  
Chemical Sensor ◽  
Produced Water ◽  
Iridium Oxide ◽  
Ph Measurement ◽  
Oilfield Produced Water

scholarly journals Interaction Effect of Process Variables on Solar-Assisted Photocatalytic Phenol Degradation in Oilfield Produced Water Over ZnO/Fe2O3 Nanocomposites

2020 ◽  
Vol 78 (1) ◽  
pp. 100-121
Author(s):  
Omer Al Haiqi ◽  
Abdurahman Hamid Nour ◽  
Bamidele Victor Ayodele ◽  
Rushdi Bargaa
Keyword(s):  
Chemical Oxygen Demand ◽  
Interaction Effect ◽  
Produced Water ◽  
Irradiation Time ◽  
Phenol Degradation ◽  
Oxygen Demand ◽  
P Value ◽  
Phenol Removal ◽  
Process Variables ◽  
Oilfield Produced Water

This study investigates the interaction effects of process variables on photocatalytic phenol degradation in oil produce water. A series of ZnO/Fe2O3 nanocomposite prepared using the sol-gel method and calcined at a temperature range of 400-600 oC were employed as photocatalysts. The characterization analysis using different instrument techniques revealed that the ZnO/Fe2O3 nanocomposites have suitable physicochemical properties as photocatalysts. The photocatalytic activity of the ZnO/Fe2O3 nanocomposite was examined in photo-reactor considering the degradation of the phenol and the reduction in chemical oxygen demand (COD) in the oilfield produced water under direct sunlight. It was ascertained that process variables such as irradiation time, calcination temperature of the ZnO/Fe2O3 nanocomposites, and the ZnO/Fe2O3 nanocomposites concentration significantly influenced the chemical oxygen demand and phenol removal. Based on the analysis of variance (ANOVA), the effects of the process variables on the phenol and COD removal can be ranked as irradiation time (p-value < 0.0001) > calcination temperature of the ZnO/Fe2O3 nanocomposite (p-value = 0.0003) > ZnO/Fe2O3 concentration (p-value = 0.0013). The interaction between the parameters was observed to have a substantial effect on COD and phenol removal. However, the interaction effect that produced the most significant influence on the COD and phenol removal was recorded between the irradiation time and the ZnO/Fe2O3 nanocomposite concentration.

Analysis of chemical compositions contributable to chemical oxygen demand (COD) of oilfield produced water

Chemosphere ◽  
2006 ◽  
Vol 62 (2) ◽  
pp. 322-331 ◽  
Author(s):  
Jinren Lu ◽  
Xiulin Wang ◽  
Baotian Shan ◽  
Ximing Li ◽  
Weidong Wang
Keyword(s):  
Chemical Oxygen Demand ◽  
Produced Water ◽  
Oxygen Demand ◽  
Chemical Compositions ◽  
Oilfield Produced Water

scholarly journals Boehmite nanopowder recovered from aluminum cans waste as a potential adsorbent for the treatment of oilfield produced water

2021 ◽  
Author(s):  
Adel Abdelkader ◽  
Basem M. Hussien ◽  
Eman M. Fawzy ◽  
Asma A. Ibrahim
Keyword(s):  
Activated Carbon ◽  
Chemical Oxygen Demand ◽  
Produced Water ◽  
Treatment Time ◽  
High Surface ◽  
Oxygen Demand ◽  
Good Efficiency ◽  
Pollution Indicator ◽  
Oilfield Produced Water ◽  
Aluminum Cans

AbstractIn the present study, high surface area boehmite nanopowder was recovered from aluminum cans waste. The sodium aluminate solution was first prepared by dissolving aluminum cans in NaOH solution and then, H2O2 solution was added to precipitate boehmite. The prepared boehmite was characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM) and N2 adsorption–desorption techniques. The thermal stability of the boehmite sample was investigated using thermogravimetry (TG) and differential scanning calorimetry (DSC) techniques. The feasibility of using the prepared boehmite powder as a new low-cost adsorbent for the treatment of oilfield produced water was investigated. For comparison, commercial activated carbon was used for the treatment of the produced water under the same conditions. The efficiency of both of boehmite and activated carbon in the treatment of produced water was determined by monitoring the values of a number of pollution indicators [i.e. turbidity, sulfides, sulfates, total organic carbon (TOC), total petroleum hydrocarbon (TPH), and chemical oxygen demand (COD)] before and after the treatment. The boehmite powder showed very good efficiency in the treatment of the produced water, which is very close to that of commercial activated carbon under the same conditions. The effect of adsorbent dose, treatment time, and pH of the media on the adsorption efficiency of both of boehmite and activated carbon was examined at room temperature using chemical oxygen demand as a pollution indicator. The maximum capacity for COD reduction was 69.6% for boehmite and 83.5% for activated carbon at 40 g/l adsorbent dosage, pH7, and 24-h contact time. Graphic abstract

scholarly journals Ammonia-Nitrogen and Phosphate Removal in Leachate using Algae and Bacteria Mixture

2019 ◽  
Vol 8 (4) ◽  
pp. 7007-7012
Keyword(s):  
Biological Treatment ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Phosphate Removal ◽  
Sanitary Landfill ◽  
Standard Set ◽  
Algae And Bacteria ◽  
Nitrogen And Phosphate Removal ◽  
Nitrogen Phosphorus

Leachate is a liquid that has been produced by the waste especially organic waste. In an engineered sanitary landfill, biological treatment is a common practice to reduce the leachate contaminants. The effluent from treated leachate needs to comply with the standard set by the Department of Environment (DOE), Malaysia before it is being released into the river. The leachate contains a high number of contaminants such as ammonia-nitrogen, phosphorus, heavy metal, biochemical oxygen demand (BOD), chemical oxygen demand (COD) and suspended solids. This study focused on the possibility of treating leachate by using algae and bacteria in biological treatment in removing ammonia-nitrogen and phosphate in leachate obtained from Air Hitam Sanitary Landfill, Puchong. Initially, the characteristics of the leachate sample with in-situ and laboratory tests were analyzed to quantify the contaminants in the leachate. In this research, the concentration of leachate samples together with algae and bacteria was diluted in one (1) liter of distilled water varied between 10%, 30%, 50%, 80% and 100% (v/v) in each flask. Then, all the samples were aerated to ensure that the algae and bacteria were at the optimum condition to treat the contaminants in the leachate for all the respective flasks. The results of ammonia-nitrogen, phosphate, nitrite-nitrogen, and nitrate-nitrogen were taken for every 3 days for 15 days to determine the percentage of the removal due to the algae and bacteria uptake in the leachate for all the samples. After 15 days, the percentage of removal of the contaminants were analyzed using factorial design. It showed that 50% (v/v) of leachate concentration in the diluted flask exhibits the highest removal percentage of ammonia-nitrogen with 96.95% ammonia-nitrogen being removed from the leachate. For phosphorus, 10% (v/v) diluted leachate concentration marked highest which is 94.92% has been removed from the leachate. Finally, the regression equation was established to predict the rate of ammonia-nitrogen removal.

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