E-waste management PPT for students. Total 17 slides
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Language: en
Added: Apr 30, 2024
Slides: 17 pages
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INDEX 1. INTRODUCTION 2. SOURCES OF E-WASTE 3. EFFECTS ON HUMAN HEALTH 4. EFFECTS ON ENVIRONMENT 5. HOW THESE BECOME E-WASTE 6. HOW TO REDUCE E-WASTE 7. REUSE OF E-WASTE 8. RECYCLE OF E-WASTE 9. ADVANTAGES OF RECYCLING E-WASTE 10. STATISTICS 11. CONCLUSION
Electronic waste, abbreviated as ‘e-waste’ is a term used to describe old, end-of-life electronic appliances such as computers, laptops, TV’s, radios, refrigerators etc., which have been discarded by users. E-waste comprises of numerous valuable but harmful substances that can cause an adverse effect on human health. Recycling e-waste can be dangerous if not done using suitable techniques and measures. INTRODUCTION
Waste generated from the products used for data processing such as computers, computer devices like monitor, speakers, keyboards, printers etc. 2. Electronic devices used for entertainment like TV, DVDs, and CDplayers. 3. Equipment or devices used for communication like phones, landline phones, fax etc. 4. Household equipment's like vacuum cleaner, microwave ovens,washing machines, air conditioners etc.. 5. Audio, visual components such as VCRS, Stereo equipment etc. SOURCES OF E-WASTE
E FFECTS ON HUMAN HEALTH Damage to central and peripheral nervous systems , B lood systems and kidney damage Affects brain development of children. Chronic damage to the brain. Respiratory and skin disorders due to bioaccumulation in fishes. Asthmatic bronchitis. DNA damage Reproductive and developmental problems. Immune system damage. Lung Cancer. Damage to heart, liver and spleen.
EFFECTS ON ENVIRONMENT The Negative Effects on Air Contamination in the air occurs when e-waste is informally disposed by dismantling, shredding or melting the materials, releasing dust particles or toxins, such as dioxins, into the environment that cause air pollution The Negative Effects on Soil When improper disposal of e-waste in regular landfills or in places where it is dumped illegally, both heavy metals and flame retardants can seep directly from the e-waste into the soil, causing contamination of underlying groundwater or crops The Negative Effects on Water After soil contamination, heavy metals from e-waste, such as mercury, lithium and barium, then leak through the earth even further to reach groundwater. When these heavy metals reach groundwater, they eventually make their way into rivers and lakes etc
HOW THESE BECOME E-WASTE? Reasons : Advancements in technology. Changes in style fashion and status. Nearing the end of their useful life. Not taking precautions while handling them.
HOW TO REDUCE E-WASTE Reuse as often as possible Educate yourself on what gets put into your electronics. Be a good consumer. Look for an environmentally friendly label. Consider limiting the number of electronics you own. Recycle, recycle, recycle . Understand security issues. Maintain what you have.
“Reuse” is an important component of keeping material out of the waste stream. E-waste may make its way into scrapyards, mixed in with cars, old appliances and industrial scrap handled by the scrap metal recycling industry. Individual recyclers have different approaches for how to handle these items, but more progress is being made on how t o extract valuable material and move these items through the recycling process. REUSE OF E-WASTE
RECYCLE OF E-WASTE E-waste recycling refers to the reprocessing and re-use of these electronic wastes. It is simple. It is a process that seeks to recover material from electronic waste. This way, you can use them in new electronic products. Recycling of e-waste is a growing trend and was initiated to protect human and environmental health mainly due to the widespread environmental pollution impacts of e-waste.
ADVANTAGES OF RECYCLING Electronic products are comprised of valuable materials such as precious metals like gold, silver and platinum along with copper, aluminum, plastic and glass . Reclaiming valuable materials from the recycling process means there will be decreased demand for new raw materials . Using recycled material will also help reduce greenhouse gas emissions produced when manufacturing or processingnew product known as “virgin material.” Discarded electronic devices can also be kept out of the landfill if they are refurbished, reused and donated to a worthy cause.
According to statistics we are generating morethan 40 million tons of e-waste a year and only 27% of this is recycled. India is in the 5th position in the generation ofe-waste.(Being the largest user of smart phones this ranks may increase in the future.) STATISTICS According to the data received in 2007 about 70 % of e- waste of the world reaches China and the rest to Africa and India. Due to cheap labourthey have become the world’s dumping station of e- waste. In Ghana about 20% of their population are working on e-waste which they use after reconditioning them. Poverty is the main reason for third world countries to consume e-wastes from Europe and USA.
In 2017 it was reported by Global E-waste Monitor report that e-waste has increased by 44.7 million metric tonnes(8 percent) from 2014 to 2016. The number is expected to rise to nearly 52.2 million metric tons by 2021 (17 percent) globally .
1. E waste has emerged as one of the fastest growing waste streams world wide today. 2. Electronic gadgets, without proper disposal can cause environmental harm 3. Reuse and Recycle are more beneficial than simple disposal
4. Designing of products using environment friendly raw items can make a change.
5. Awareness of e-waste should be given 6. Government shall take steps to reduce e-waste disposal. CONCLUSION