Journal
REVISTA MEXICANA DE INGENIERIA QUIMICA
Volume 19, Issue -, Pages 101-110Publisher
UNIV AUTONOMA METROPOLITANA-IZTAPALAPA
DOI: 10.24275/rmiq/Bio1470
Keywords
airlift bioreactor; aliphatic hydrocarbon; remediation; pollution; hydrodynamic
Categories
Funding
- Catedras CONACyT-UASLP [466]
- FAI-UASLP [C19-FAI-05-49.49]
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In the present work the polluting hydrocarbons in water bodies of the state of San Luis Potosi were evaluated and determined in June 2019, to choose a representative carbon source for the airlift bioreactor. The sampling points were tourist areas: Chajir Lagoon, Puente de Dios pool, Tampaon River and Media Luna Lagoon, and aliphatic hydrocarbons with a carbon number between C8-C32 were found. We reported high concentrations of pollutants, such as eicosane (up to 2,603.22 +/- 1,202.09 mg L-1) and heneicosane (up to 3,971.21 +/- 2,260.45 mg L-1). The airlift bioreactor was designed based on hydrodynamic parameters: holdup gas Sauter mean diameter and Reynolds number that increased with the superficial gas velocity, both in the riser zone and downcomer zone and from Ug = 1.92 cm s(-1), mixing and mass transfer are favoured in a 2 L airlift reactor. Also, the hydrodynamic parameters evaluated were higher in the riser zone. Furthermore, the consortium isolated by the Gutierrez-Rojas working group composed of Xanthomonas sp., Acinetobacter Bouvetii, Shewanella Sp., and Defluvibacter lusatiensis, was able to consume 98.21% of the initial diesel concentration (13,000 mg L-1). The airlift bioreactor evaluated in the investigation proved to be capable of remediation the studied water bodies.
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