Role of biochar in biodegradation of nonylphenol in sediment: Increasing microbial activity versus decreasing bioavailability.

ABSTRACT: The observed strong sorption of hydrophobic organic contaminants (HOCs) to biochar presents potential implications for HOCs bioavailability and bioaccessibility in sediments, while biochar could impact sediment microbial ecology. However, the comprehensive study on the effects of biochar on HOC biodegradation coupled with bioavailability and microbial ecology are rarely documented. In this paper, the effects of biochar on the biodegradation of nonylphenol (NP) were investigated using 3 different NP concentrations (20, 50 and 500 mg/Kg) in sediments amended with different percentage of rice straw biochar (RC). Results showed that the influence of RC on NP biodegradation varied with different NP concentrations. At low NP concentrations, RC suppressed NP biodegradation by reducing NP bioavail

SUBMITTER: Cheng G 

PROVIDER: S-EPMC5498626 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature