摘要：Biochar performs well in the remediation of heavy metals or pesticides-polluted soil and thereby reduces agricultural diffuse pollution, which is rarely applied to organic and inorganic combined pollution. The study selected thiourea-modified pig manure biochar to remedy soil and simultaneously to reduce cadmium and glyphosate diffuse loss based on sorption process. The results showed that the Freundlich and Langmuir model well fit the adsorption of cadmium and glyphosate. Compared with pig manure biochar, the pH value and the ash content of thiourea-modified pig manure biochar decreased by 0.82 and 5.02%, respectively. The adsorption capacity and binding ability of biochar to cadmium and glyphosate increased. The thiourea-modified pig manure biochar-amended soil responded differently to different initial Cd and glyphosate concentrations in the single- and binary- system. This study provides an economic and environmental technical means to solve the problem of composite pollution in the actual environment.
