RT info:eu-repo/semantics/article
T1 Bioaugmentation and vermicompost facilitated the hydrocarbon bioremediation: scaling up from lab to field for petroleum-contaminated soils
A1 Curiel Alegre, Sandra
A1 Khan, Aqib Hassan Ali
A1 Rad Moradillo, Juan Carlos
A1 Velasco Arroyo, Blanca
A1 Rumbo Lorenzo, Carlos
A1 Rivilla, Rafael
A1 Durán, David
A1 Redondo-Nieto, Miguel
A1 Borràs, Eduard
A1 Molognoni, Daniele
A1 Martín-Castellote, Soledad
A1 Juez, Blanca
A1 Barros García, Rocío
K1 Bioaugmentation
K1 Microbial consortium
K1 Hydrocarbons
K1 Vermicompost
K1 Passive bioelectrochemical systems
K1 Contaminación
K1 Pollution
K1 Química agrícola
K1 Agricultural chemistry
K1 Bioquímica
K1 Biochemistry
AB The biodegradation of total petroleum hydrocarbon (TPH) in soil is very challenging due to the complex recalcitrant nature of hydrocarbon, hydrophobicity, indigenous microbial adaptation and competition, and harsh environmental conditions. This work further confirmed that limited natural attenuation of petroleum hydrocarbons (TPHs) (15% removal) necessitates efficient bioremediation strategies. Hence, a scaling-up experiment for testing and optimizing the use of biopiles for bioremediation of TPH polluted soils was conducted with three 500-kg pilots of polluted soil, and respective treatments were implemented: including control soil (CT), bioaugmentation and vermicompost treatment (BAVC), and a combined application of BAVC along with bioelectrochemical snorkels (BESBAVC), all maintained at 40% field capacity. This study identified that at pilot scale level, a successful application of BAVC treatment can achieve 90.3% TPH removal after 90 days. BAVC’s effectiveness stemmed from synergistic mechanisms. Introduced microbial consortia were capable of TPH degradation, while vermicompost provided essential nutrients, enhanced aeration, and, potentially, acted as a biosorbent. Hence, it can be concluded that the combined application of BAVC significantly enhances TPH removal compared to natural attenuation. While the combined application of a bioelectrochemical snorkel (BES) with BAVC also showed a significant TPH removal, it did not differ statistically from the individual application of BAVC, under applied conditions. Further research is needed to optimize BES integration with BAVC for broader applicability. This study demonstrates BAVC as a scalable and mechanistically sound approach for TPH bioremediation in soil.
PB Springer Nature
SN 1614-7499
YR 2024
FD 2024-03-22
LK http://hdl.handle.net/10259/9505
UL http://hdl.handle.net/10259/9505
LA eng
NO Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work was funded by the GREENER project of the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 826312), Junta de Castilla y León (ORDEN EDU/1508/2020, de 15 de diciembre) and by Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación (TED2021-130996B-I00).
DS Repositorio Institucional de la Universidad de Burgos
RD 27-jul-2024