Use of bioremediation for the removal of petroleum hydrocarbons from the soil: an overview

Santos, João Victor de Oliveira; Ferreira, Ylanna Larissa Alves; Silva, Letícia Leôncio de Souza; Lyra, Ingrid de Lacerda Buarque de Miranda; Palácio, Sarah Brandão; Cavalcanti, Isabella Macário Ferro

doi:10.22161/ijeab/3.5.35

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is generally accepted that chemical, physical, and biological processes intervene in the remediation of waste and soils contaminated with hydrocarbons (Volke and Velasco 2002;Riser-Robert, 2019). The use of bioremediation methods has aroused a considerable research interest and currently provides advantages over other treatment processes (Kumar et al, 2011;Tyagi et al, 2011;Thapa et al, 2012;Varjani, 2017;Yuniati, 2017;de Oliveira et al, 2018). Among the bioremediation methods, biopiles are an ex situ technology where the stimulation of microbial activity is achieved through the direct addition of nutrients and texturizers (agro-industrial organic wastes), as well as aeration and humidity control (Velasco and Volke, 2003;Prakash et al, 2015;EPA, 2017;Martínez et al, 2017;Ossai et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Bench-Scale Biopile Hydrocarbons Removal Optimization Using the Response Surface Methodology and Simultaneous Optimization

Gutiérrez-Benítez,

Castro-Rodríguez,

Serrano-Suárez

et al. 2023

Ing. Inv.

View full text Add to dashboard Cite

Nowadays, the generation of vast volumes of oily sludges is associated with industrial operations such as production, pretreatment, processing, water separation, and storage tank maintenance. Biopiles can be more efficient than other techniques for removing hydrocarbons in sludges, but their removal efficiency depends on operating variables. The goal of this study was to determine the best operating variable ranges at the bench scale to simultaneously optimize hydrocarbons removal in a biopile prototype. This research was conducted within the framework of a Cuban project and used an experimental protocol that integrates several standardized methods and engineering procedures into a series of steps. A Box-Behnken design was implemented for three factors and two response variables: the mass of Total Petroleum Hydrocarbons (TPH) removed and the final concentration of TPH. A simultaneous optimum was obtained for an initial TPH concentration of 39 278 mg·kg-1 and contents of texturizer and moisture of 6,45 and 25,95%, respectively. The obtained variable ranges ensure a compromise solution that maximizes the mass of TPH removed and keeps the contaminant concentration under the Cuban disposal regulations. The results have been used to set up the biopiles at a pilot scale as a subsequent stage of the project.

show abstract