Combination of bioaugmentation and biostimulation for remediation of paddy soil contaminated with 2,4-dichlorophenoxyacetic acid

摘要: The batch and fed-batch tests were performed to evaluate the efficiency of bioaugmentation in combination with biostimulation for remediation paddy soil contaminated 2,4-dichlorophenoxyacetic acid (2,4-D). 2,4-D degrading enrichments used bioaugmentation, effluents prepared through biological hydrogen production process as substrate biostimulation. indicated that degradation depended on enrichment/substrate ratio (E/S), where E/S 0.03 showed an excellent performance. only led improvement degradation, while pattern repeated augmentation (FRA) together obviously improved 2,4-D, 2-chlorophenol (2-CP) phenol. DNA-sequencing approach FRA altered bacterial community composition, high removal 2-CP phenol may be attributed acclimation persistence Thauera. findings demonstrated importance 2,4-D.