black oil sludge treatment regeneration machine in lesotho

                                               
                                               
                                               
                                               
                                               
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  • Are modern methods effective for oil sludge and acid Resid treatment?
  • This review considers effective modern methods for oil sludge and acid resid treatment. We analyze in detail the technologies for dewatering, solidification, solvent extraction, thermal treatment (including in the presence of catalysts), and modern oil sludge and solid fuel (oil shales, coals) treatment methods.
  • What is thermochemical treatment of oily sludge?
  • The thermochemical treatment involves adding hot water and chemical agents, mainly surfactants, to the oily sludge to alter the interfacial properties between oil and liquid phase through chemical crimping, emulsification, dissolution, and solubilization, reducing the viscosity of oily sludge (Lu et al. 2021).
  • What are alternative technologies for oily sludge management?
  • This review compares alternative technologies for economical and environmentally beneficial management of oily sludges for recovery of hydrocarbons and energy with and without oil recovery. Management options with oil recovery include solvent extraction, centrifugation, surfactant oil recovery, and pyrolysis.
  • Can oil sludge be treated with bioremediation?
  • Our results also showed that the ODS sludge is only suitable to be treated by an oil sludge contaminant reduction technique (e.g. bioremediation) due to its low oil content (1%) and PTEs concentrations. Low PTE concentrations are not toxic for most of the microbiota used in bioremediation processes.
  • What solvent is used for oily sludge removal?
  • (Hu et al. 2013). In this context, many different solvents have been reported for treating oily sludge (Gazineu et al. 2005). Turpentine oil was used as a solvent to the oil removal, and it was discovered that the extracted oil accounted for 13¨C53% of the initial mass of the sludge.
  • What is thermal treatment sludge?
  • Generally, thermal treatment refers to heating up the pre-treated sludge as a green and cost-effective approach. Although hot steam is commonly used in the production of petroleum, particularly for heavy and thick oil resources, it is rarely used to extract oil from oily sludge.