Composting of 4-nonylphenol-contaminated river sediment was studied.
Inocula of Phanerochaete chrysosporium (Pc) could accelerate 4-NP’s degradation.
4-NP contents in sediment were negatively correlated with Pc’s laccase actives.
Pc increased the activities of catalase and polyphenol oxidase in the sediment.
Composting time was reduced by inocula of Pc into 4-NP contaminated sediment.