Assessing the performance of a UV/H2O2 process for removing TOC from petroleum refinery wastewater and the respirometric effects of adding UV/H2O2 treated wastewater to activated sludge from the refinery WWTP biological treatment process

10.32920/ryerson.14644851.v1 ◽

2021 ◽

Author(s):

Mark Knight

Keyword(s):

Activated Sludge ◽

Biological Treatment ◽

Treatment Process ◽

Petroleum Refinery ◽

Molar Ratio ◽

Refinery Wastewater ◽

Bench Scale ◽

Treatment Performance ◽

Petroleum Refinery Wastewater ◽

Biological Treatment Process

The treatment of petroleum refinery wastewater was studied using a bench scale ultraviolet/hydrogen peroxide (UV/H2O2) process. The highest treatment performance of the bench scale UV/H2O2 process to reduce the total organic carbon (TOC) from the petroleum refinery wastewater took place at a reaction time of 45 min and a pH of 5.0. A three factor analysis of va riance (ANOVA) analysis verified that the initial H2O2/TOC molar ratio did not have a significant effect on the bench scale UV/H2O2 process treatment performance. The effects of adding UV/H2O2 treated petroleum refinery wastewater to activated sludge microorganisms form the refinery WWTP biological treatment process was studied using respirometry. Overall, the UV/H2O2 treated refinery wastewater inhibited the refinery activated sludge microorganisms. This occurred when the raw refinery wastewater was treated with a UV/H2O2 process for 45 min. with an initial H2O2/TOC molar ratio of 1.7 mol H2O2/mol C, an initial H2O2 concentration of 202 mg H2O2/L and a pH of either 5 or 7.

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Refinery wastewater treatment via a multistage enhanced biochemical process

Scientific Reports ◽

10.1038/s41598-021-89665-8 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Chunhua Wang ◽

Zijian Chen ◽

Yuanhua Li ◽

Kejun Feng ◽

Zhongli Peng ◽

...

Keyword(s):

Organic Pollutants ◽

Biological Treatment ◽

Treatment Process ◽

Ammonia Nitrogen ◽

Cod Removal ◽

Refinery Wastewater ◽

Petroleum Refinery Wastewater ◽

Aerated Filter ◽

Complex Organic ◽

Biological Treatment Process

AbstractPetroleum refinery wastewater (PRWW) that contains recalcitrant components as the major portion of constituents is difficult to treat by conventional biological processes. An effective and economical biological treatment process was established to treat industrial PRWW with an influent COD of over 2500 mg L−1 in this research. This process is mainly composed of internal circulation biological aerated filter (ICBAF), hydrolysis acidfication (HA), two anaerobic–aerobic (A/O) units, a membrane biological reactor (MBR), and ozone-activated carbon (O3-AC) units. The results showed that, overall, this system removed over 94% of the COD, BOD5, ammonia nitrogen (NH4+-N) and phosphorus in the influent, with the ICBAF unit accounting for 54.6% of COD removal and 83.6% of BOD5 removal, and the two A/O units accounting for 33.3% of COD removal and 9.4% of BOD5 removal. The degradation processes of eight organic pollutants and their removal via treatment were also analyzed. Furthermore, 26 bacteria were identified in this system, with Proteobacteria and Acidobacteria being the most dominant. Ultimately, the treatment process exhibited good performance in degrading complex organic pollutants in the PRWW.

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A NOTE ON PETROLEUM REFINERY WASTEWATER TRACE CONTAMINANTS BEFORE AND AFTER BIOLOGICAL TREATMENT

Oil in Freshwater: Chemistry, Biology, Countermeasure Technology ◽

10.1016/b978-0-08-031862-2.50036-8 ◽

1987 ◽

pp. 443-445

Author(s):

L. HURBER ◽

W. KALBFUS ◽

H. BAUMUNG

Keyword(s):

Biological Treatment ◽

Petroleum Refinery ◽

Refinery Wastewater ◽

Trace Contaminants ◽

Petroleum Refinery Wastewater ◽

Before And After

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Inhibiting effect of textile wastewater on the activity of sludge from the biological treatment process of the activated sludge plant

Saudi Journal of Biological Sciences ◽

10.1016/j.sjbs.2018.06.003 ◽

2019 ◽

Vol 26 (7) ◽

pp. 1753-1757 ◽

Cited By ~ 4

Author(s):

L. Gebrati ◽

M. El Achaby ◽

H. Chatoui ◽

M. Laqbaqbi ◽

J. El Kharraz ◽

...

Keyword(s):

Activated Sludge ◽

Biological Treatment ◽

Treatment Process ◽

Textile Wastewater ◽

Inhibiting Effect ◽

Biological Treatment Process

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Assessing the performance of uv/H2O2as a pretreatment process in TOC removal of an actual petroleum refinery wastewater and its inhibitory effects on activated sludge

The Canadian Journal of Chemical Engineering ◽

10.1002/cjce.22180 ◽

2015 ◽

Vol 93 (5) ◽

pp. 798-807 ◽

Cited By ~ 26

Author(s):

Ciro Fernando Bustillo-Lecompte ◽

Mark Knight ◽

Mehrab Mehrvar

Keyword(s):

Activated Sludge ◽

Petroleum Refinery ◽

Refinery Wastewater ◽

Inhibitory Effects ◽

Toc Removal ◽

Petroleum Refinery Wastewater

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Simulation for the Performance and Economic Evaluation of Conventional Activated Sludge Process Replacing by Sequencing Batch Reactor Technology in a Petroleum Refinery Wastewater Treatment Plant

ChemEngineering ◽

10.3390/chemengineering3020045 ◽

2019 ◽

Vol 3 (2) ◽

pp. 45 ◽

Cited By ~ 4

Author(s):

Shahryar Jafarinejad

Keyword(s):

Computer Simulation ◽

Wastewater Treatment ◽

Activated Sludge ◽

Sequencing Batch Reactor ◽

Petroleum Refinery ◽

Batch Reactor ◽

Refinery Wastewater ◽

Conventional Activated Sludge ◽

Petroleum Refinery Wastewater ◽

Project Construction

Treatment of the petroleum refinery wastewater containing complex chemicals using biological processes is usually challenging because of the inhibition and/or toxicity of these matters when they serve as microbial substrates. In addition, performance modeling and cost evaluation of processes are essential for designing, construction, and forecasting future economic requirements of the petroleum refinery wastewater treatment plants (PRWWTPs). In this study, the performance and economics of conventional activated sludge (CAS) process replacing by sequencing batch reactor (SBR) technology in a two train PRWWTP were evaluated using simulation. The final treated effluent characteristics for the PRWWTPs containing CAS + CAS and SBR + CAS processes under steady state conditions were studied and evolution of the main parameters of the final effluent during the 30 days of simulation for these plants were investigated. Finally, the total project construction, operation labor, maintenance, material, chemical, energy, and amortization costs of these plants were estimated and compared. Results demonstrated that the project construction cost of PRWWTP containing CAS + CAS processes was lower than that of PRWWTP containing SBR + CAS processes and the energy and amortization costs for both plants were higher in comparison with the operation, maintenance, material, and chemical costs. Note that this study is a computer simulation and drawing general conclusions only on the basis of computer simulation may be insufficient.

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