摘要：The effect of polycyclic aromatic hydrocarbon and highly effective degradation fungi Mucor mucedo (MU)was studied on corncob decomposition in Pyr-contaminated soil for 120 days to identify the impact of adegradable immobilized carrier on the remediation of soil contaminated by persistent organic pollutants.Results showed that the corncob was mainly composed of hemicelluloses, cellulose, and water dissolved(WD) material, which accounted for 85 percent of its total weight. MU addition significantly affected corncobdecomposition. Thus, humic acid production and WD and benzene-ethanol dissolved material degradationincreased. The peaking of the WD content was delayed for 30 days or more. The extractable pyrene contentpositively correlated with the WD content in the corncob during the decomposition. These results theoreticallysupport a refined remediation principle of immobilized microorganisms.
