WPCB Pretreatment for Metal Recovery

Acetic acid, citric acid, hydrogen peroxide, and deionized water purchased are of analytical grade. The waste printed circuit boards (WPCBs) were gathered from the scrap market. RAM, chip slots, and PCI slots that were attached to PCBs were physically removed, and they were then sliced into 3 × 3 cm pieces. To remove any dirt, oil, chemicals, adhesives, smears, etc., the WPCB samples were then washed and rinsed with distilled water and acetone. They were allowed to dry for 24 h at room temperature.

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Nagarajan N, & Panchatcharam P. (2023). Cost-effective and eco-friendly copper recovery from waste printed circuit boards using organic chemical leaching. Heliyon, 9(3), e13806.

Publication 2023

Acetic acid Acetone Chip Citric acid Hydrogen peroxide Pcbs

Corresponding Organization : CMR University

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Variable analysis

independent variables

Acetic acid
Citric acid
Hydrogen peroxide
Deionized water

dependent variables

Removal of dirt, oil, chemicals, adhesives, and smears from the WPCB samples

control variables

Analytical grade of the chemicals used
Size of the WPCB pieces (3 × 3 cm)
Washing and rinsing the WPCB samples with distilled water and acetone
Drying the WPCB samples for 24 h at room temperature

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