Proposal of a sequential treatment methodology for the safe reuse of oil sludge-contaminated soil

Mater, Luciana; Sperb, Rafael Medeiros; Madureira, Luiz A. S.; Rosin, Alexander; Corrêa, Albertina X.R.; Radetski, Claudemir M.

doi:10.1016/j.jhazmat.2006.01.041

Cited by 100 publications

(39 citation statements)

References 19 publications

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“…2015, their generation of sludge is of concern as indicated by [6]. This is because, the management of this waste is problematic and requires proper disposal and sufficient treatment in order not to pose serious threat to the environment and health [10,14].…”

Section: Volumes Of Daily Oily Sludge Generation/tonmentioning

confidence: 99%

A Review of the Impacts and Management of Oily Sludge in the Oil and Gas Industry

Kuranchie¹

2017

IJRET

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Section: Volumes Of Daily Oily Sludge Generation/tonmentioning

confidence: 99%

A Review of the Impacts and Management of Oily Sludge in the Oil and Gas Industry

Kuranchie¹

2017

IJRET

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“…23 USEPA priority 16 PAH content was achieved Vol. 34,No. 2 using the USEPA 8270C method by gas chromatography (HP 5880A) coupled with mass spectrometry (EM 5987).…”

Section: Soilmentioning

confidence: 99%

“…1 Major concerns regarding PAH are related to their mutagenic and carcinogenic potential. [2][3][4] According to their number of rings, PAH can be classified as low-molecular weight (LMW-PAH), i.e., with two and three rings or as high-molecular weight (HMW-PAH) with four or more rings. 5 The soil is the main reservoir of these compounds.…”

Section: Introductionmentioning

confidence: 99%

Removal of high-molecular weight polycyclic aromatic hydrocarbons

Vasconcelos¹,

França²,

Oliveira³

2011

Quím. Nova

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Recebido em 5/2/10; aceito em 23/8/10; publicado na web em 30/11/10Alternatives for the removal of high-molecular weight polycyclic aromatic hydrocarbons (HWM-PAH) from soil were tested by adding fertilizer or glycerol, as well as the combination of both. Experiments were carried out for 60 days in reactors containing a HWM-PAH-contaminated soil (8030 μg kg -1 ), accompanied by pH monitoring, humidity control and quantification of total heterotrophic bacteria and total fungus. Fertilizer addition removed 41.6% of HWM-PAH. Fertilizer and glycerol in combination removed 46.2%. When glycerol was added individually, degradation reached 50.4%. Glycerol also promoted the increase of degradation rate during the first 30 days suggesting the HMW-PAH removal occurred through cometabolic pathways.

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“…For example, the ultrasonic irradiation method can be combined with freeze/thaw treatment of oily sludge to obtain a promising oil recovery performance . The Fenton ' s oxidation can be combined with solidification/stabilization method to offer a safer way of oily sludge disposal (Mater et al, 2006). The addition of bio-surfactants during froth flotation and/or bioremediation of oily sludge can also enhance the overall efficiency (Ramaswamy et al , 2007;Rahman et al, 2003).…”

Section: Factors Affecting Oily Sludge Biodegradationmentioning

confidence: 99%

“…The effective management of oily sludge has become a worldwide problem due to its hazardous nature and increasing production quantity around the world. During the past years, a variety of oily sludge treatment methods have been developed, such as landfarming, incineration, solidification/stabilization, solvent extraction, ultrasonic treatment, pyrolysis, photocatalysis, chemical treatment, and biodegradation Mrayyan and Battikhi, 2005;Mater et al , 2006;da Rocha et al , 2010;Roldan-Carrillo et al , 2010;Zubaidy and Abouelnasr, 2010;Yan et al, 2012) . By employing these technologies, the contents of hazardous constituents can be reduced or eliminated, and its deleterious environmental and health impacts can thus be mitigated.…”

Section: Introductionmentioning

confidence: 99%

Development of novel oil recovery methods for petroleum refinery oily sludge treatment

Hu¹

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Oily sludge is one of the most significant wastes generated in the petroleum industry.It is a complex emulsion of various petroleum hydrocarbons (PHCs), water, metals, and fine solids. Due to its hazardous nature and increased generation quantities around the world, the effective treatment of oily sludge has attracted widespread attention. The complexity of its composition and diversity of its origin sources make oily sludge management a difficult and costly undertaking. Many methods have been developed for the treatment of oily sludge through oil recovery or sludge disposal approaches, but no single specific process can be considered as a panacea since each method is associated with different advantages and limitations. Efforts should focus on the improvement of current technologies and the combination of oil recovery with sludge disposal in order to comply with both resource reuse recommendations and environmental regulations. The object of this study was to develop novel combined methods for oil recovery treatment on different refinery oily sludges. The investigation focused on the oil recovery performance of combined methods based on four individual treatment processes including ultrasonic irradiation, solvent extraction, freeze/thaw, and pyrolysis in oily sludge treatment.Firstly, the oil recovery and salt removal effects of ultrasonic irradiation on oil refinery tank bottom sludge were investigated, together with those of direct heating.Ultrasonic power, treatment duration, sludge-to-water ratio, and initial sludge-water slurry temperature were examined for their impacts on sludge treatment. It was found that the increased initial slurry temperature could enhance the ultrasonic irradiation performance, especially at lower ultrasonic power level (i.e., 21 W), but the application of higher-power ultrasonic irradiation could rapidly increase the bulk temperature of slurry. Ultrasonic 2 irradiation had a better oil recovery and salt removal performance than direct heating treatment. More than 60% of PH Cs in the sludge was recovered at an ultrasonic power of 75 W, a treatment duration of 6 min, an initial slurry temperature of 25 °C, and a sludgeto-water ratio of 1 :4, while salt content in the recovered oil was reduced to <5 mg/L, thereby satisfying the salt requirement in refinery feedstock oil. In general, ultrasonic irradiation could be an effective method in terms of oil recovery and salt removal from refinery oily sludge, but the separated wastewater still contains relatively high concentrations of PH Cs and salt which requires proper treatment.Two types of ultrasonic assisted extraction (UAE) treatment including UAE probe (UAEP) system and UAE bath (UAEB) system were investigated for oil recovery from refinery oily sludge. Their oil recovery efficiencies were compared to that of mechanical shaking extraction (MSE). Three solvents including cyclohexane (CHX), ethyl acetate (EA), and methyl ethyl ketone (MEK) were examined as the extraction solvents. The influence of experimental factors on oil an...

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Proposal of a sequential treatment methodology for the safe reuse of oil sludge-contaminated soil

Cited by 100 publications

References 19 publications

A Review of the Impacts and Management of Oily Sludge in the Oil and Gas Industry

A Review of the Impacts and Management of Oily Sludge in the Oil and Gas Industry

Removal of high-molecular weight polycyclic aromatic hydrocarbons

Development of novel oil recovery methods for petroleum refinery oily sludge treatment

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