Quantitative evaluation of relationships between adsorption and partition of atrazine in biochar-amended soils with biochar characteristics.

ABSTRACT: Atrazine (ATZ) adsorption in two natural soils amended with biochars produced from different feedstocks at 300, 500, and 700 °C were investigated; further, the relationships between the surface and partition adsorption capacities of ATZ in biochar-amended soils with biochar characteristics were quantitatively evaluated. The results revealed that high aromaticity, hydrophobicity, and low polarity of biochar facilitated ATZ adsorption. The addition of selected biochars significantly increased the adsorption of ATZ on paddy soil (PS) and black soil (BS) by 5.2-7.5 times and 2.3-4.2 times, respectively. On the contrary, the degree of increase in surface adsorption was much higher than that in partition adsorption, mainly due to the role of the specific adsorption of ATZ on biochar. Meanwhile,

SUBMITTER: Zhao Z 

PROVIDER: S-EPMC9060563 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature