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Pyrite and PHBV Combined as Substrates for Groundwater Denitrification

Pyrite and PHBV Combined as Substrates for Groundwater Denitrification

Zhengkun Qian

41,26 €
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Editorial:
Eliva Press
Año de edición:
2025
Materia
Tecnología: cuestiones generales
ISBN:
9789999326971
41,26 €
IVA incluido
Disponible

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Sobre IBD

Facing the growing threat of nitrate contamination in groundwater, this study presents an innovative approach to in-situ denitrification using a novel combination of pyrite and polyhydroxybutyrate-co-valerate (PHBV) as solid-phase electron donors. By evaluating two mass ratios (1:1 and 1:2) of PHBV to pyrite in lab-scale permeable reactive barrier systems, the research reveals high nitrate removal efficiencies of up to 97.65%, with minimal dissolved organic carbon in the effluent. Microbial analysis indicates that pyrite content significantly influences microbial community structure and functional gene expression, with the 1:2 ratio favoring aerobic denitrifiers and a broader functional gene profile. The findings highlight a promising, cost-effective mixtrophic denitrification strategy for sustainable groundwater remediation.

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