Efficiency of refinery sludge biodegradation using municipal wastewater and activated sludge and effect of hydrocarbon concentration on culturable bacteria community

Hamed, Said Ben; Rezgui, Raja; Halleb, Ayed; Ghram, Abdeljelil; Oueslati, Ridha; Labat, Marc; Maaroufi, Abderrazak

doi:10.1007/s13213-010-0126-0

Cited by 8 publications

(4 citation statements)

References 32 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is interesting noticing that TPH concentration found in the wastewater is quite high when compare to levels previously reported in effluents from petrochemical industry (i.e., 1,440 mgL -1 , Ben Hamed et al 2010) and other results for the analysis of oil industry wastewater in the past, where HTPs concentration up to 40 mgL -1 were reported (Galil et al 1988, Rebhun and). In the same way, COD was also higher that previous reports (Ben-Hamed et al 2010). COD and BOD values are 19,440 and 298 mgL -1 , respectively giving a BOD/COD ratio of 0.015, considered non biodegradable, probably associated with the high amount of oil hydrocarbons.…”

Section: Wastewater Characterizationsupporting

confidence: 69%

Petrochemical effluent treatment using natural coagulants and an aerobic biofilter

Bandala¹,

Tiro²,

Lujan³

et al. 2013

Advances in environmental research

View full text Add to dashboard Cite

Coagulation-flocculation (CF) was tested coupled with an aerobic biofilter to reduce total petroleum hydrocarbon (TPHs) concentration and toxicity from petrochemical wastewater. The efficiency of the process was followed using turbidity and chemical oxygen demand (COD). The biofilter was packed with a basaltic waste (tezontle) and inoculated with a bacterial consortium. Toxicity test were carried out using Lactuca sativa var. capitata seeds. Best results for turbidity removal were obtained using alum. Considerable turbidity removal was obtained when using Opuntia spp. COD removal with alum was 25%, for Opuntia powder it was 36%. The application of the biofilter allowed the removal of 70% of the remaining TPHs after 30 days with a biodegradation rate (BDR) value 47 mgL-1 d-1. COD removal was slightly higher with BDR value 63 mgL-1 d-1. TPH kinetics allowed a degradation rate constant equal to 4.05 × 10-2 d-1. COD removal showed similar trend with k = 4.23 × 10-2 d-1. Toxicity reduction was also successfully achieved by the combined treatment process.

show abstract

Section: Wastewater Characterizationsupporting

confidence: 69%

Petrochemical effluent treatment using natural coagulants and an aerobic biofilter

Bandala¹,

Tiro²,

Lujan³

et al. 2013

Advances in environmental research

View full text Add to dashboard Cite

show abstract

“…The drastic decrease in effluent COD, and BOD5 at start-up was mainly due to dilution effect by seed municipal wastewater. However, the performance of the reactors were monitored after a phase-out of the dilution effect achieved after feeding the reactors more than twice the working volume [26]. The average COD and BOD5 removal during acclimation were 92.90 and 85.89% for reactor 1, and 92.68 and 84.65% for reactor 2 respectively.…”

Section: Removal Of Carbonaceous Pollutantsmentioning

confidence: 99%

Appraisal of suspended growth process for treatment of mixture of simulated petroleum, textile, domestic, agriculture and pharmaceutical wastewater

Egbuikwem

Saroj

2019

Environmental Technology

View full text Add to dashboard Cite

The unrestricted discharge of domestic and industrial wastewaters along with agricultural runoff water into the environment as mixed-wastewater pose serious threat to freshwater 2 resources in many countries. Mixed-wastewater pollution is a common phenomenon in the developing countries as the technologies to treat the individual waste streams at source are lacking due to high operational and maintenance costs. Therefore, the need to explore the potential of suspended growth process (SGP) which is a well-established process technology for biological wastewater treatment, is the focus of this paper. Different wastewater constituents: representing domestic, pharmaceutical, textile, petroleum, and agricultural runoff were synthesized as a representative of mixed-wastewater and treated in two semicontinuous bioreactors (R1 & R2) operated at constant operating conditions vis., MLSS (mg/L): 4640-R1, 4440-R2, SRT: 21-d, HRT: 48 -72-h, and uncontrolled pH. The system attained stable condition in day 97, with average COD, BOD and TSS reduction as 84.5, 86.2, and 72.2% for R1; and 85.1, 87.9, and 75.1% for R2 respectively. Phosphate removal on average was by 74.3% in R1 and 76.6% in R2, while average nitrification achieved in systems 1 and 2 were 56.8and 54.7% respectively. The biological treatment system has shown potential for improving the quality of mixed-wastewater to the state where reuse may be considered and tertiary treatment can be employed to polish the effluent quality.

show abstract

“…Numbers are Genbank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences. strains of B. licheniformis and B. firmus are able to tolerate hydrocarbon concentrations of 800 and 6300 mg/l, respectively (Ben Hamed et al, 2010). B. pimilus was isolated from solid waste crude oil samples, collected from the clean up of oil storage containers (Calvo et al, 2004).…”

Section: Study Of Bacterial Distribution In Various Reservoirsmentioning

confidence: 99%

Diversity of culturable aerobic bacteria colonizing four petroleum by-products storage reservoirs

Saiuml¹,

Hamed²,

Gam³

et al. 2013

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

The petroleum reservoirs are commonly exposed to bacterial contamination. The proliferation of several bacterial species, could modify the product quality, change viscosity, help other sulfatereducing, iron reducing bacteria to grow, and accelerate reservoir biocorrosion. Thus, companies of storage and transport of petroleum frequently use biocides to prohibit bacterial proliferation. However, the use of the appropriate biocide, need an obvious knowledge of bacterial population harbouring the reservoir. Thus, in this study, we intended to isolate and identify the aerobic bacterial population existing in different reservoirs of petroleum derivatives in the refinery of Bizerte, Tunisia. The isolation and identification of these microorganisms may be of great interest in bioremediation of polluted sites. Besides, it could inform about hydrocarbon specificity of these microorganisms and therefore lead to the use of suitable biocides to clean these storage reservoirs. 25 different bacterial strains were isolated from water collected from reservoirs of crude oil, gasoline, diesel oil and kerosene. The different strains were identified using morphological and biochemical characterization, as well as sequencing of 16S rRNA. The systematic study of these strains showed that they belong to six different genera. The highest strain number was affiliated to the genera of Pseudomonas and Bacillus followed by genera of Staphylococcus, Enterobacter Comamonas and Paenibacillus. The results of this study are discussed in terms of the ecological significance of these microorganisms in relation with physicochemical conditions of reservoirs and hydrocarbon composition.

show abstract

Efficiency of refinery sludge biodegradation using municipal wastewater and activated sludge and effect of hydrocarbon concentration on culturable bacteria community

Cited by 8 publications

References 32 publications

Petrochemical effluent treatment using natural coagulants and an aerobic biofilter

Petrochemical effluent treatment using natural coagulants and an aerobic biofilter

Appraisal of suspended growth process for treatment of mixture of simulated petroleum, textile, domestic, agriculture and pharmaceutical wastewater

Diversity of culturable aerobic bacteria colonizing four petroleum by-products storage reservoirs

Contact Info

Product

Resources

About