Evaluation of the leached cadmium and nickel from the degradation of nickel-cadmium batteries in a column of soil

Química Nova

Universidade Federal do Espírito Santo, Vitória, Brasil¹  Ferreira, Sandra Aparecida Duarte¹  Martinelli, Armando Cozer¹  Freitas, Marcos Benedito José Geraldo de¹  Lelis, Maria de Fátima Fonte¹  Barrada, Renan Vicente¹ 

关键词: soil;    Ni-Cd batteries;    heavy metals.;   

DOI  :  10.5935/0100-4042.20140073

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Spent nickel-cadmium (Ni-Cd) batteries and salts of nickel and cadmium were placed in two different columns of soil for a period of two years. A leaching solution was passed through them at ambient temperature in this period. The behavior of metals in each column was then evaluated. Under the conditions of the experiment, cadmium and nickel demonstrated the potential to contaminate and affect the natural cycles of soil. The disposal of Ni-Cd batteries directly to the soil also increased the concentration of nickel (349 mg kg-1) and cadmium (2890 mg kg-1), sometimes exceeding the intervention values defined in CONAMA resolution 420/09.

【 授权许可】

Unknown