scholarly journals Treatment of Oil Refinery Wastewater Using Pilot Scale Fed Batch Reactor Followed by Coagulation and Sand Filtration

2013 ◽  
Vol 1 (1) ◽  
pp. 10-13 ◽  
Author(s):  
Ghulam Shabir ◽  
Muhammad Afzal ◽  
Razia Tahseen ◽  
Samina Iqbal ◽  
Qaiser M. Khan ◽  
...  
Keyword(s):  
Batch Reactor ◽  
Pilot Scale ◽  
Oil Refinery ◽  
Refinery Wastewater ◽  
Sand Filtration ◽  
Fed Batch ◽  
Oil Refinery Wastewater

scholarly journals The Impact of Bioaugmentation on the Performance and Microbial Community Dynamics of an Industrial-Scale Activated Sludge Sequencing Batch Reactor under Various Loading Shocks of Heavy Oil Refinery Wastewater

Water ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 2822
Author(s):  
Kai Cui ◽  
Quanshu Xu ◽  
Xiaoying Sheng ◽  
Qingfan Meng ◽  
Gaoyuan Shang ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Heavy Oil ◽  
Sequencing Batch Reactor ◽  
Community Dynamics ◽  
Batch Reactor ◽  
Oil Refinery ◽  
Refinery Wastewater ◽  
Microbial Community Dynamics ◽  
The Impact ◽  
Oil Refinery Wastewater

The stable and efficient operation of the activated sludge sequencing batch reactor (ASSBR) in heavy oil refineries has become an urgent necessity in wastewater biotreatment. Hence, we constructed a green and efficient solid bioaugmentation agent (SBA) to enhance the resistance of the reactor to loading shock. The impact of bioaugmentation on the performance and microbial community dynamics under three patterns of heavy oil refinery wastewater (HORW) loading shock (higher COD, higher toxicity, and higher flow rate) was investigated on an industrial-scale ASSBR. Results showed that the optimal SBA formulation was a ratio and addition of mixed bacteria Bacillus subtillis and Brucella sp., of 3:1 and 3.0%, respectively, and a glucose concentration of 5.0 mg/L. The shock resistance of ASSBR was gradually enhanced and normal performance was restored within 6–7 days by the addition of 0.2% SBA. Additionally, the removal efficiency of chemical oxygen demand and total nitrogen reached 86% and 55%, respectively. Furthermore, we found that Burkholderiaceae (12.9%) was replaced by Pseudomonadaceae (17.1%) in wastewater, and Lachnospiraceae (25.4%) in activated sludge was replaced by Prevotellaceae (35.3%), indicating that the impact of different shocks effectively accelerated the evolution of microbial communities and formed their own unique dominant bacterial families.

scholarly journals Treatment of Mineral Oil Refinery Wastewater in Microbial Fuel Cells Using Ionic Liquid Based Separators

2018 ◽  
Vol 8 (3) ◽  
pp. 438 ◽  
Author(s):  
Hasna Addi ◽  
Francisco Mateo-Ramírez ◽  
Víctor Ortiz-Martínez ◽  
María Salar-García ◽  
Francisco Hernández-Fernández ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Mineral Oil ◽  
Oil Refinery ◽  
Refinery Wastewater ◽  
Oil Refinery Wastewater

scholarly journals Assessment of oil refinery wastewater and effluent integrating bioassays, mechanistic modelling and bioavailability evaluation

Chemosphere ◽  
2021 ◽  
pp. 132146
Author(s):  
G.F. Whale ◽  
M. Hjort ◽  
C. Di Paolo ◽  
A.D. Redman ◽  
J.F. Postma ◽  
...  
Keyword(s):  
Oil Refinery ◽  
Refinery Wastewater ◽  
Mechanistic Modelling ◽  
Oil Refinery Wastewater

An Investigation of the Treatment and Recycling of Oil Refinery Wastewater

1986 ◽  
Vol 18 (9) ◽  
pp. 105-114 ◽  
Author(s):  
D. Misković ◽  
B. Dalmacija ◽  
Ž Živanov ◽  
E. Karlović ◽  
Z. Hain ◽  
...  
Keyword(s):  
Oil Refinery ◽  
Refinery Wastewater ◽  
Dissolved Air Flotation ◽  
Microbiological Oxidation ◽  
Dissolved Matter ◽  
High Level ◽  
High Degree ◽  
Improved Methods ◽  
Oil Refinery Wastewater ◽  
Dissolved Air

The objective of the present investigation was a high level of purification of the wastewater from an oil refinery achieved by using some improved methods yielding an effluent suitable for recycling into the process. All the investigations were carried out on a continuous laboratory pilot system consisting of the following units: dissolved air flotation (DAF), sedimentation, double-stage microbiological reactor, and adsorption columns filled with granular biologically activated carbon (GBAC). A high degree of COD reduction close to 100% (precisely, 99.95 %), as well as removal of nitrogen compounds of 72% was achieved during a relatively short retention time within the range of 15-16.5 hrs. The DAF technique combined with gravitational separation was used to achieve the recovery of free oil matter up to 98%, without any preliminary conditioning. After the sedimentation of coagulated and flocculated dispersed oils, the microbiological oxidation of dissolved matter was accomplished by using two kinds of activated sludge for easy and hard degradable organics. Using the continuously bioregenerating GBAC, an effluent having a lowered COD value to about 9 was obtained. At the same time, the denitrification process took place. According to the obtained results the treated oil refinery wastewater can be recycled into the process, or discharged into a water recipient of a low self-purifying capacity.

The use of steel slags in the heterogeneous Fenton process for decreasing the chemical oxygen demand of oil refinery wastewater

2018 ◽  
Vol 78 (5) ◽  
pp. 1159-1167 ◽  
Author(s):  
Behnam Heidari ◽  
Mohsen Soleimani ◽  
Nourollah Mirghaffari
Keyword(s):  
Microwave Irradiation ◽  
Chemical Oxygen Demand ◽  
Steel Slag ◽  
Oxygen Demand ◽  
Oil Refinery ◽  
Fenton Process ◽  
Refinery Wastewater ◽  
Optimum Conditions ◽  
Heterogeneous Fenton ◽  
Oil Refinery Wastewater

Abstract The Fenton process is a useful and inexpensive type of advanced oxidation process for industrial wastewater treatment. This study was performed with the aim of using the steel slag as a catalyst in the heterogeneous Fenton process in order to reduce the chemical oxygen demand (COD) of oil refinery wastewater. The effects of various parameters including the reaction time (0.5, 1.0, 2.0, 3.0 and 4.0 h), pH (2.0, 3.0, 4.0, 5.0, 6.0 and 7.0), the concentration of steel slag (12.5, 25.0 and 37.5 g/L), and H2O2 concentration (100, 250, 400 and 500 mg/L) on the Fenton process were investigated. Furthermore, the effect of microwave irradiation on the process efficiency was studied by considering the optimum conditions of the mentioned parameters. The results showed that using 25.0 g/L of steel slag and 250 mg/L H2O2, at pH = 3.0, could reduce COD by up to 64% after 2.0 h. Also, microwave irradiation decreased the time of the process from 120 min to 25 min in the optimum conditions, but it consumed a high amount of energy. It could be concluded that steel slags had a high potential in the treatment of oil refinery wastewater through the Fenton process.

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