Oil refinery wastewater treatment using coupled electrocoagulation and fixed film biological processes

Pérez, Laura S.; Rodríguez, Oscar M.; Reyna, Silvia; Sánchez-Salas, José Luis; Lozada, J. Daniel; Quiróz, Marco A.; Bandala, Erick R.

doi:10.1016/j.pce.2015.10.018

Cited by 67 publications

(21 citation statements)

References 26 publications

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“…The aeration rate was monitored using a digital flow meter. An air pump Dds-11a conductivity meter [10][11][12][13] and heater band were used to provide gas flow and to control the temperature, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Various technologies, including physical, chemical and biological methods, have been developed for the further treatment of wastewater or secondary effluent . However, the removal effects of COD and NH 4 + ‐N in refinery wastewater are not notable, and there are disadvantages such as low load and poor impact resistance …”

Section: Introductionmentioning

confidence: 99%

“…[6][7][8][9][10][11] However, the removal effects of COD and NH 4 + -N in refinery wastewater are not notable, and there are disadvantages such as low load and poor impact resistance. 12,13 Biological treatment processes utilize diverse microbial communities that interact in a multitude of ways to mediate a myriad of biological reactions. 14 It has been pointed out that future research should focus on more efficient treatment of refinery wastewater to meet the dual targets of cleaning polluted water and recovering purified water for beneficial use.…”

Section: Introductionmentioning

confidence: 99%

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A bioaugmentation agent allowing the advanced treatment of refractory refinery wastewater in a biological aerated filter and analysis of its microbial community

Feng

Wen

2020

J of Chemical Tech & Biotech

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BACKGROUND The performance of a biological aerated filter (BAF) with activated sludge and nut shell activated carbon was evaluated for the advanced treatment of intractable refinery wastewater. Bioaugmenting the BAF with Pseudomonas sp. FS‐01 and Bacillus sp. FS‐02 and the microbial community structure between the upgrade system and the original system were also studied. RESULTS During the steady state of the BAF, the influent chemical oxygen demand (COD) was in the range 80–128 mg L−1, and ammonia nitrogen (NH4+‐N) was in the range 15–20 mg L−1. The BAF with activated carbon from nut shells as a supporting material can remove over 32% of influent COD and 95% of NH4+‐N. On bioaugmentation, the average effluent COD and NH4+‐N concentrations were 31.8 and 0.4 mg L−1, respectively. The predominant genera in BAF1 were Nitrospira, an unranked member of the Anaerolineaceae and an unclassified member of the Rhizobiales, while the dominant genera in BAF2 were Pseudomonas, Bacillus and an unranked member of the Anaerolineaceae. CONCLUSIONS The coconut shell activated carbon has outstanding properties for removing COD and NH4+‐N, along with high shock loading resistance. Bioaugmentation can improve the COD remove efficiency by 35% in relation to only adding sludge. Microbial diversity analysis indicated that bioaugmentation accelerated the transformation of the bacterial community structure, quickly becoming dominant strains. This bioaugmented process may be a promising alternative technology for the treatment of refractory wastewater. © 2019 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A bioaugmentation agent allowing the advanced treatment of refractory refinery wastewater in a biological aerated filter and analysis of its microbial community

Feng

Wen

2020

J of Chemical Tech & Biotech

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“…However, biological treatment methods are limited by high salinity, biohazards, and oil. Biological processes have been successfully used to treat oil-containing wastewater [5,6]. Zhao et al (2006) [7] investigated the use of B350M-group microorganisms to pre-treat oilfield wastewater and achieved the mean degradation efficiencies of 78% for the total organic carbon (TOC) and 94% for oil.…”

Section: Introductionmentioning

confidence: 99%

“…With biofiltration alone, the TOC, chemical oxygen demand (COD), Ultraviolet (UV) absorbance at 254 nm (UV254), ammonium, and turbidity removal rates can reach 46%, 46%, 23%, 50%, and 61%, respectively [5]. Pérez et al (2016) [6] also achieved a COD removal rate exceeding 95% with an electrocoagulation (EC)-aerobic biofilter treatment of oil refinery wastewater. It is assumed that normal microorganisms in biological treatment plants cannot tolerate high-salinity conditions [9].…”

Section: Introductionmentioning

confidence: 99%

Full-Scale Processing by Anaerobic Baffle Reactor, Sequencing Batch Reactor, and Sand Filter for Treating High-Salinity Wastewater from Offshore Oil Rigs

2018

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High-salinity wastewater discharged from offshore oil rigs (WORS) is harmful to marine environments. Therefore, WORS should be properly treated before discharge. In this study, a full-scale anaerobic baffle reactor (ABR) + sequencing batch reactor (SBR) + sand filter (SF) process was used for the first time to treat WORS at an inshore treatment terminal. After seeding with residual sludge from a municipal wastewater treatment facility, the start-up of the ABR and SBR was accomplished in one month. During a steady running period, the ABR + SBR process showed stable performance in treating WORS. The results of microbial diversity indicated that Rhizobiales, Thermotogales, and Actinomycetales were the most abundant genera in the ABR sample, while Acidobacteria DRC31, Lactobacillales, and Bacillales prevailed in the SBR sample. The results showed that ABR + SBR is a reliable process for WORS treatment, with the treated WORS meeting the National Sewage Comprehensive Emission Standards (GB8978-1996).

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Investigation of micellar‐enhanced ultrafiltration (MEUF) using rhamnolipid for heavy metal removal from desalter effluent

Munoz‐Cupa

Bassi

Liu³

2022

Can J Chem Eng

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The removal of heavy metals from desalter effluent is an important issue due to the toxicity of these pollutants. In this study, micellar-enhanced ultrafiltration (MEUF) is applied for the removal of heavy metals from synthetic desalter effluent. MEUF is a process in which surfactants above their critical micellar concentration (CMC) form micelles. Micelles bind compounds with low molecular weight; then, these are rejected by a semi-permeable membrane.Rhamnolipid is an anionic biosurfactant that has advantages such as biodegradability and low CMC. Rhamnolipid complexation with synthetic desalter effluent demonstrates high efficiency for heavy metal removal. The highest overall removal efficiency was reached at a rhamnolipid concentration of 300 mg/L with 94.07%, 81.93%, 99.81%, 76.00%, and 41.91% for Zn +2 , Mg +2 , Cu +2 , Mn +2 , and Na + , respectively. Additionally, loading capacity on rhamnolipid micelles was evaluated to have better selectivity for Mn +2-

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Oil refinery wastewater treatment using coupled electrocoagulation and fixed film biological processes

Cited by 67 publications

References 26 publications

A bioaugmentation agent allowing the advanced treatment of refractory refinery wastewater in a biological aerated filter and analysis of its microbial community

A bioaugmentation agent allowing the advanced treatment of refractory refinery wastewater in a biological aerated filter and analysis of its microbial community

Full-Scale Processing by Anaerobic Baffle Reactor, Sequencing Batch Reactor, and Sand Filter for Treating High-Salinity Wastewater from Offshore Oil Rigs

Investigation of micellar‐enhanced ultrafiltration (MEUF) using rhamnolipid for heavy metal removal from desalter effluent

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