Sorption to soil, biochar and compost: is prediction to multicomponent mixtures possible based on single sorbent measurements?

ABSTRACT: Amendment with biochar and/or compost has been proposed as a strategy to remediate soil contaminated with low levels of polycyclic aromatic hydrocarbons. The strong sorption potential of biochar can help sequestering contaminants while the compost may promote their degradation. An improved understanding of how sorption evolves upon soil amendment is an essential step towards the implementation of the approach. The present study reports on the sorption of pyrene to two soils, four biochars and one compost. Detailed isotherm analyzes across a wide range of concentration confirmed that soil amendments can significantly increase the sorption of pyrene. Comparisons of data obtained by a classical batch and a passive sampling method suggest that dissolved organic matter did not play a significan

SUBMITTER: Kah M 

PROVIDER: S-EPMC6001708 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature