Electronic Waste or E-Waste
Table of Contents:
Recycling of E-Waste takes place in three major steps which are depicted here.
To ensure safe disposal or recycle of E-Waste, detoxication process takes place for the electronic materials. Detoxication is the process of removing critical components from the electronic waste in order to avoid contamination with toxic substances during the downstream processes. Critical components include lead glass from CRT screens, CFC gases from refrigerators, light bulbs and batteries.
In the next step electronic materials are broken into pieces to obtain concentrates of recyclable materials in a dedicated fraction and also to further separate hazardous materials. The mechanical processing plants where shredding takes place includes shredders, crushing units, magnetic and eddy current and air-separators. The emitted gases are filtered and residues are treated to minimize environmental impact.
The third step of e-waste recycling is refining of the shredded materials to obtain reusable components. Refining of resources in e-waste is possible and the technical solutions exist to get back raw with minimal environmental impact. Most of the components need to be refined or conditioned before they can be sold as secondary raw materials or to be disposed of in a final disposal site.