Pyrolysis temperature and biochar redox activity on arsenic availability and speciation in a sediment.

ABSTRACT: Biochar is widely used for water and soil remediation in part because of its local availability and low production cost. However, its effectiveness depends on physicochemical properties related to its feedstock and pyrolysis temperature, as well as the environmental conditions of its use site. Furthermore, biochar is susceptible to natural aging caused by changes in soil or sediment moisture, which can alter its redox properties and interactions with contaminants such as arsenic (As). In this study, we investigated the effect of pyrolysis temperature and biochar application on the release and transformations of As in contaminated sediments subjected to redox fluctuations. Biochar application and pyrolysis temperature played an important role in As species availability, As methylation, and

SUBMITTER: Soares MB 

PROVIDER: S-EPMC10528781 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature