Avaliação da lixiviação do cádmio e níquel provenientes da degradação de baterias níquel-cádmio em uma coluna de solo

Química Nova

Marcos Benedito José Geraldo de Freitas¹  Sandra Aparecida Duarte Ferreira¹  Maria de Fátima Fonte Lelis¹  Armando Cozer Martinelli¹  Renan Vicente Barrada¹ 

[1] Universidade Federal do Espírito Santo;

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

DOI  :  10.5935/0100-4042.20140073

来源: DOAJ

【 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