Biosparging primarily promotes:
Principal benefit of biosparging lies in stimulating rapid aerobic biodegradation within otherwise anaerobic groundwater by resolving oxygen limitation that constrains metabolic energetics. Most petroleum hydrocarbon catabolic routes depend on iron-containing monooxygenases and Rieske dioxygenases inserting molecular oxygen into inert C-H bonds of alkanes forming alcohols and aromatic rings forming catechols, reactions impossible without O2 as cosubstrate. Products funneled via beta-oxidation and ortho cleavage into TCA cycle generating high ATP yield. Under anoxia, degradation relies on slowe
Ref: Vidali Bioremediation review 2001 aerobic pathways; EPA Biosparging enhances aerobic degradation; PubMed PMID 14767740 rates.