Petroleum sludge treatment and disposal techniques: a review

Murungi, Pearl Isabellah; Sulaimon, Aliyu Adebayo

doi:10.1007/s11356-022-19614-z

Cited by 31 publications

(11 citation statements)

References 93 publications

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“…62 Currently, anaerobic bio-slurry remediation is an emerging research area, while aerobic bio-slurry remediation dominates in practical applications. 79 A vital feature of the bio-slurry remediation process is the biological treatment of contaminated soil in a nearhomogeneous suspension undersaturated conditions. 80 Aer the pretreatment process of adding nutrients, inoculating bacteria, and adjusting pH, the contaminated soil enters the bioslurry reactor.…”

Section: Bio-slurry Remediation Technology Process Owmentioning

confidence: 99%

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Research progress of bio-slurry remediation technology for organic contaminated soil

et al. 2023

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Section: Bio-slurry Remediation Technology Process Owmentioning

confidence: 99%

“… 62 Currently, anaerobic bio-slurry remediation is an emerging research area, while aerobic bio-slurry remediation dominates in practical applications. 79 …”

Section: Overview Of Bio-slurry Remediation Technologymentioning

confidence: 99%

Research progress of bio-slurry remediation technology for organic contaminated soil

et al. 2023

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“…The increasing production and discharge of oily wastewater from several industries, such as the petrochemical, [1] textile, [2] and food industries, [3] is a potential disaster for the marine environment, human health, and ecosystems. Different traditional oil-water separation techniques, such as centrifugation, oil fences, and in situ combustion, have several drawbacks, such as high operating costs, low separation efficiency, and prolonged processing periods.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Composite Hydrogel‐Coated Stainless Steel Screen for Efficient and Stable Gravity‐Driven Oil–Water Separation

Xiao

Yang

et al. 2022

Adv Eng Mater

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The reasonable and efficient treatment of oily wastewater has attracted wide attention. Herein, a composite hydrogel‐modified filter screen, inspired by fish scales and marine mussels, is prepared via layer‐by‐layer modification to separate oil–water mixture even in harsh environments. First, a stainless steel filter screen is coated by a layer of silicon dioxide (SiO2) microspheres by the vapor deposition of polydimethylsiloxane. Then, a SiO2@polydopamine‐polyacrylamide composite hydrogel (SiO2@P–PGel)‐modified screen is prepared by dipping the screen into a prepolymer solution. Due to the special wettability and micronanostructures, the stable and high efficient water permeation in the air and oil repellency in water are achieved by the screen. A very effective oil–water separation rate of over 99% can be achieved for various types of oil–water mixtures. The separation efficiency and water flux remain stable even after 70 cycles. Another significant feature of the innovative screen is that it displays excellent underwater superoleophobicity in very salty, acidic, and alkaline solutions, suggesting that the screen has excellent oil–water separation performance and stability, even in corrosive aqueous media. This innovative screen is a potentially attractive candidate for the treatment and recovery of oily wastewater due to its high efficiency and stability.

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“…Oily sludge is the most important oily solid waste in the process of oil and gas eld development. Because of its great harm to the ecological environment, China identi ed it as hazardous solid waste in the "National Catalogue of Hazardous Wastes" in 1998, and it continues to be retained in the newly revised list in 2021 [1][2][3]. China's new environmental protection law also further lowers the threshold for sentencing and convicting environmental pollution accidents, which re ect China's high standards and strict requirements for the treatment and disposal of hazardous solid waste in oil and gas elds on oily sludge [4].…”

Section: Introductionmentioning

confidence: 99%

Synergistic Preparation of Sludge Carbon from Oily Sludge and Walnut Shells

Tang¹,

Guan²

2022

International Journal of Analytical Chemistry

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The preparation process of synergistic preparation of sludge carbon by oily sludge and walnut shells are divided into two stages: carbonization preparation of a carbon precursor and activation preparation of sludge carbon. The preparation conditions of the carbon precursor are 2.5:1 mass ratio of oily sludge and walnut shells, carbonization temperature is 450°C, and time is 2 h. There are some pores on the surface of the prepared carbon precursor, the heavy metal content of leachate does not exceed the standard, and the use process will not cause heavy metal pollution. Intensive research is carried out on factors affecting the preparation of sludge carbon by activation of the carbon precursor by the orthogonal experiment and single-factor experiment. The optimal activation conditions are determined by using ZnCl2 as an activator, mass ratio of the carbon precursor to ZnCl2 is 1:4, activation temperature is 800°C, heating rate is 15°C/min, and activation holding time is 1 h. The surface of sludge carbon is distributed with many pores, several layers of small pores can be seen deeply in the large holes, and pore size distribution is dominated by micropores and mesopores. BET Specific surface area, pore volume, average pore, and iodine value are 1772.69 m2/g, 1.98 cm3/g, 1.64 nm, and 1011.65 mg/g, respectively, which surpasses commercially available activated carbon comprehensively.

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Petroleum sludge treatment and disposal techniques: a review

Cited by 31 publications

References 93 publications

Research progress of bio-slurry remediation technology for organic contaminated soil

Research progress of bio-slurry remediation technology for organic contaminated soil

Bioinspired Composite Hydrogel‐Coated Stainless Steel Screen for Efficient and Stable Gravity‐Driven Oil–Water Separation

Synergistic Preparation of Sludge Carbon from Oily Sludge and Walnut Shells

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