Turning off notifications, turning our phone off while working and setting limits for the amount of time we spend on technology on a daily basis can not only be helpful for us but also minimise e-waste
Electronic (e-waste) is emerging as a serious public health and environmental issue globally in this century.
The lifecycle of electronic equipment should be understood to get a better understanding of what causes e-waste to be generated and its harmful nature. Obsolete devices are replaced by new devices due to the advent of new technologies, which, in turn, results in electronic waste.
The United States is the world leader in producing electronic waste, generating about three million tonnes each year.
Read Down To Earth’s coverage of e-waste
China already produces about 2.3 million tonnes (2010 estimate) domestically, second only to the United States.
India is the ‘fifth-largest electronic waste producer in the world’. Approximately 1.2 million tonnes of e-waste is generated annually in India according to the Central Pollution Control Board (CPCB).
Annually, computer devices account for nearly 70 per cent of e-waste; 12 per cent comes from the telecom sector, eight per cent from medical equipment and seven per cent from electric equipment.
The government, public sector companies and private sector companies, generate nearly 75 per cent of electronic waste, with the contribution of individual households being only 16 per cent. Unorganised processing and recycling of e-waste is also not safe from the environmental point of view.
The environmental impact of processing different electronic waste components
|E-waste component||Treatment and disposal||Potential environmental hazard|
|Cathode ray tubes (used in TVs, computer monitors, ATM, video cameras and more)||Breaking and removal of yoke, then dumping||Lead, barium and other heavy metals leaching into the ground water and release of toxic phosphorus|
|Printed circuit board (a thin plate on which chips and other electronic components are placed)||De-soldering and removal of computer chips; open burning and acid baths to remove metals after chips are removed||Air emissions and discharge into rivers of glass dust, tin, lead, brominated dioxin, beryllium cadmium and mercury|
|Chips and other gold-plated components||Chemical stripping using nitric and hydrochloric acid and burning of chips||
Polycyclic aromatic hydrocarbon (PAHs), heavy metals, brominated flame retardants discharged directly into rivers acidifying fish and flora. Tin and lead contamination of surface and groundwater. Air emissions of brominated dioxins, heavy metals and PAHs
|Plastics from printers, keyboards, monitors, etc||Shredding and low temperature melting to be reused||Emissions of brominated dioxins, heavy metals and hydrocarbons|
|Computer wires||Open burning and stripping to remove copper||PAHs released into air, water, and soil|
E-waste is already a major catastrophe due to its harmful and hazardous effects. It will continue to create more problems if not handled or processed properly.
Children and adults, who are especially vulnerable to the effects of e-waste, often work, live and play in or near e-waste recycling centres. E-waste can pose several health hazards which include damage of kidney, immune system, reproductive system and central nervous system.
Electronics waste contains hazardous but also simultaneously valuable and scarce materials which can be extracted. Up to 60 elements are generally found in complex electronics. In the United States, an estimated 70 per cent of heavy metals in landfills come from discarded electronics.
Classification of e-waste from normal waste and estimation of the amount of e-waste generated are the first few steps in the proper processing and disposal of e-waste.
But the most important step would perhaps be raising awareness among every individual about the cause and effects of e-waste and request cooperation in the disposal of the same. Manufacturers are equally suggested to produce greener electronics.
A digital fasting or e-fasting is usually referred to as reducing technology use — such as turning off notifications, turning our phone off while working and setting limits for the amount of time we spend on technology on a daily basis can not only be helpful for us but also minimise e-waste.
Manas Ranjan Senapati is Dean, Science, Biju Patnaik University of Technology and Professor of Chemistry, Trident Academy of Technology, Bhubaneswar
Views expressed are the author’s own and don’t necessarily reflect those of Down To Earth
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