Biodegradation of total organic carbons (TOC) in Jordanian petroleum sludge

Mrayyan, Bassam; Battikhi, Mohammed Nizar

doi:10.1016/j.jhazmat.2004.12.033

Cited by 174 publications

(90 citation statements)

References 32 publications

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“…There was a distinct decline in the oil and grease content in all plots during bioremediation, ranging from 15% in the control (OS) to 46% in plot RCPG, and the efficiency of removal was more rapid during the first 40 d. A similar pattern with faster removal of hydrocarbons during the early stages of bioremediation has been reported in other studies [1,6,14]. One explanation may be that different components of the hydrocarbons had different degrees of degradability [15].…”

Section: Discussionsupporting

confidence: 76%

Prepared bed bioremediation of oily sludge in an oilfield in northern China

Liu

Luo

Teng

et al. 2009

Journal of Hazardous Materials

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a b s t r a c tField-scale bioremediation of oily sludge in prepared beds was studied at Shengli oilfield in northern China. The influence of manure, coarse sand, sawdust, a specialized microbial preparation and greenhouse conditions on the efficiency of removal of oil and grease was evaluated. After bioremediation for 230 d, oil and grease content fell by 32-42 g kg −1 dry sludge in treated plots, indicating removal of 27-46% compared with only 15% in the control plot. Addition of manure, coarse sand, sawdust and greenhouse conditions significantly (p < 0.05) increased the amount removed. Moreover, the physico-chemical properties of the sludge in all treated plots improved significantly after bioremediation. Microbial biomass in sludge and community-level physiological profiling examined using BIOLOG microplates was also studied. Total petroleum hydrocarbon degraders and polycyclic aromatic hydrocarbon degraders increased in all treated oily sludge. The activity of sludge microbial communities increased markedly in the treated plots compared with the control. Canonical correspondence analysis showed that differences in substrate utilization patterns were highly correlated (p < 0.05) with sludge hydrolyzable N and oil and grease content. The biological toxicity of the oily sludge was lower following bioremediation in most of the treated plots as evaluated using Photobacterium phosphoreum T3.

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Section: Discussionsupporting

confidence: 76%

Prepared bed bioremediation of oily sludge in an oilfield in northern China

Liu

Luo

Teng

et al. 2009

Journal of Hazardous Materials

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“…Isolated organisms from natural habitat have been characterized with standard biochemical identification tests which allow preliminary designation of the isolates as Bacillus species [1]. Further identification using 16S rDNA genes, DNA-DNA hybridization could be carried out in the future to fully identify the bacterial strains [17].…”

Section: Discussionmentioning

confidence: 99%

“…Many reports indicated that, large quantities of organic and inorganic compounds are released into the environments every year as results of human activities causing serious environmental problems. Among those problems are oil contamination of soil and water from industrial sources and other activity, which create a great environmental hazard [1]. Petroleum hydrocarbon continues to be used as principle source of energy and hence a large global environmental pollutant.…”

Section: Introductionmentioning

confidence: 99%

“…Although, there is evidence that bioremediation can be used to treat oil sludge effectively, the main limitation is the difficulty in formulation treatment strategies that produce a specified out come in term of degradation rate while residual contaminate concentration remains. However, performance of hydrocarbon degradation bacterial consortia selectively isolated from naturally occurring microbiota of the oily sludge could be utilized for future oily sludge bioremediation application [1].…”

Section: Introductionmentioning

confidence: 99%

“…It has been reported that successful bioremediation could be estimated by measuring the reduction rate of total organic hydrocarbon (TOC) [1,7]. Future research must focus on the ability of different consortia to degrade hydrocarbon in oily sludge and on efficiency of consortia supplemented with different nutrient is also should be considered.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Bioremediation of Petroleum Sludge

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2014

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Time and volume‐ratio effect on reusable polybenzoxazole nanofiber oil sorption capacity investigated via machine learning

Oflaz

Özaytekin

et al. 2021

J of Applied Polymer Sci

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Diesel oil sorption capacities (DOSCs) of polybenzoxazole/polyvinylidene fluoride nanofiber mats with four different groups (‐O‐, ‐S‐S‐, phenylene and diphenylene) in the main chain structures were investigated. Different experimental duration and diesel‐oil/tap‐water volume ratio pairs were used for diesel oil sorption. No degradation was observed in the nanofiber mat structures after diesel oil sorption. The characterizations of polybenzoxazole (PBO) nanofibers with high diesel oil selectivity were performed by scanning electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, x‐ray diffraction, thermal gravimetric analysis, differential scanning calorimetry, Brunauer–Emmett–Teller (BET), and contact angle measurement analysis. According to the result of characterizations, superoleophilic and superhydrophobic nanofiber mats show high water contact angle value in the range of 132–140∘ and show high separation efficiency. In this study, we integrated ensemble gradient boosting model (XGBoost) to predict the DOSC of sorbent nanofiber and obtain an optimal set of conditions to maximize the DOSC. The predicted PBO‐E sorbent at the 0.5 ratio of diesel‐oil/tap‐water measured at the end of the 3rd minute showed the most reliable and stable diesel oil sorption with at least 9.39 and at most 12.33 g/g sorbent with 95% of confidence.

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Biodegradation of total organic carbons (TOC) in Jordanian petroleum sludge

Cited by 174 publications

References 32 publications

Prepared bed bioremediation of oily sludge in an oilfield in northern China

Prepared bed bioremediation of oily sludge in an oilfield in northern China

Bioremediation of Petroleum Sludge

Time and volume‐ratio effect on reusable polybenzoxazole nanofiber oil sorption capacity investigated via machine learning

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