"E-waste" is a popular, informal name for electronic products that are approaching their "lifetime". E-waste is considered dangerous because certain components of certain electronic products contain hazardous materials, depending on their condition and density. The harmful components of these materials pose a threat to human health and the environment. Discarded computers, televisions, video recorders, stereos, photocopiers, fax machines, electric lights, mobile phones, audio equipment and batteries, if improperly handled, can cause lead and other substances to seep into soil and groundwater. Many of these products can be reused, refurbished or recycled in an environmentally sound manner, thereby reducing damage to the ecosystem. This article focuses on the hazards of e-waste, the need for proper management, and the options that can be implemented.
The industrial revolution and the advancement of information technology in the last century have fundamentally changed people's way of life. Although this development has helped mankind, poor management has led to new problems of pollution and pollution. The technological strength gained in the last century poses new challenges to electronic waste management. For example, personal computers (PCs) contain certain highly toxic components, such as chlorinated and brominated substances, toxic gases, toxic metals, bioactive materials, acids, plastics, and plastic additives. The hazardous components of these materials pose a threat to the environment and health. Therefore, proper management must be carried out when processing or recycling e-waste.
Nowadays, computers have become the most common and widely used gadgets in various activities ranging from schools, houses, offices to manufacturing. Electronic poison components in computers can be summarized as circuit boards containing heavy metals such as lead and cadmium; batteries containing cadmium; cathode ray tubes containing lead oxide and barium; brominated flame retardants used for printed circuit boards, cables and plastic casings; Polyvinyl chloride (PVC) coated copper cables and plastic computer casings release highly toxic dioxins and furans to recover valuable metals when burned; mercury switches; mercury in flat screens; PCBs in old capacitors ( PCB); Transformer; Basel Action Network (BAN) estimates that 500 million computers worldwide contain 2.87 billion kilograms of plastic, 716.7 million kilograms of lead, and 286,700 kilograms of mercury. The tube used in an average 14-inch display contains an estimated 2.5 to 4 kg of lead. Lead can seep into groundwater from landfills, thereby polluting groundwater. If the tube is crushed and burned, it will emit toxic fumes into the air.
The electronic waste disposal is a special problem faced by many parts of the world. Landfilled computer waste produces contaminated leachate, which eventually pollutes groundwater. Acid and sludge obtained from melting computer chips can cause soil acidification if discarded on the ground.
This is due to the treatment and recycling of waste such as acid and sludge in the river for this e waste management in mumbai is opened to e waste manage. Now, water is being transported from far away towns to meet people's needs. Incineration of e-waste will release toxic fumes and gases, which will pollute the surrounding air. Improper monitoring of landfill sites can cause environmental hazards. When certain electronic devices (such as circuit breakers) are destroyed, mercury can leak out. The same goes for polychlorinated biphenyls (PCB) from the condenser. When brominated flame-retardant plastics or cadmium-containing plastics are buried in landfills, polybrominated diphenyl ethers (PBDE) and cadmium may seep into soil and groundwater. A large amount of lead ions have been found to dissolve from broken lead-containing glass (such as the cone glass of a cathode ray tube) and mix with acidic water, which is common in landfills.
Not only does the leaching of mercury pose specific problems, the vaporization of metallic mercury and dimethylmercury is also part of waste electrical and electronic equipment (WEEE). The most dangerous form of burning electronic waste is burning plastic in the open to recover copper and other metals. Toxic substances produced by open burning affect the local environment and the wider global airflow, depositing highly toxic by-products in many places around the world.
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