Comprehensive characterization of an oily sludge from a petrol refinery: A step forward for its valorization within the circular economy strategy
نویسندگان
چکیده
Refinery treatment plants produce large quantities of oily sludge during the petroleum refining processes. The hazardousness associated with disposal these wastes, make necessary development innovative technologies to handle it adequately, linked concepts circular economy and environmental sustainability. This work provides for first time a methodology deep characterization this kind wastes consequently new insights regarding its valorization. A review works dealing type has been addressed evidencing complexity variability effluents. under study contains high concentration Chemical Oxygen Demand 196 g COD/L, Total Kjeldahl Nitrogen 2.8 TKN/kg, phosphorous content as PO43− 7 g/kg, well great presence heavy metals in different range concentrations. is composed three phases: oily, aqueous solid. solid phases present percentages carbon (84 26%, respectively), related alkanes ranged from n-C9 n-C44. Therefore, could be possible their valorization by synthesis catalyst and/or adsorbents. dark fermentation process also proposed phase obtain H2 an alternative energy source. Finally, low nutrients concentration. previous thermal pre-treatment applied might increase nutrient organic loading due destruction, making effluent suitable further conventional biological treatment.
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ژورنال
عنوان ژورنال: Journal of Environmental Management
سال: 2021
ISSN: ['0301-4797', '1095-8630']
DOI: https://doi.org/10.1016/j.jenvman.2021.112124