1. Lingayasinstitute ofmanagement and technology

2. E - waste By p.v.sriramCse 2nd year 3. E-WasteorWEEE 4. Contents:1. What is e-waste?2. Electronic wastes substances.3. Issues and problems.4. Hazardous substances.5. Health conditions.6. Recycling and uses.7. Recycling techniques.8. What you can do?9. Uses by recycling old goods. 5. What is e-waste ? E-Waste is a shortening of electronic waste. Electronic waste, e-waste, e-scrap, or as Waste Electrical andElectronic Equipment (WEEE) describes discarded electrical orelectronic devices,(which are of no use other then hittingyour enemy) Any improperly disposed electronics can be classified as e-waste. 6. Issues and problems: Rapid changes in technology, changes inmedia, falling prices, and developing newelectronics and discarding old ones, is ahuge issue arising.Technical solutions are available, but inmost cases a legalframework, logistics, and other servicesneed to be implemented before a technicalsolution can be applied. 7. Electronic waste substances: Substances found in large quantities include epoxyresins, fibreglass, PCBs, polyvinyl chlorides ,thermosettingplastics, lead, tin, copper ,silicon,beryllium, carbon, iron and aluminium. Elements found in small amountsinclude cadmium, mercury, and thallium. Elements found in trace amountsinclude americium, antimony, arsenic, barium, bismuth, boron, cobalt, europium, gallium, germanium,gold, indium, lithium, manganese, nickel, niobium, palladium, platinum, rhodium, ruthenium, selenium, silver, tantalum, terbium, thorium, titanium, vanadium, and yttrium 8. Hazardous substances: Americium: the radioactive source in smoke alarms. It is known tobe carcinogenic. Mercury: found in fluorescent tubes (numerous applications), tilt switches(mechanical doorbells, thermostats),and flat screen monitors. Healtheffects include sensory impairment, dermatitis, memory loss, and muscleweakness. Environmental effects in animals include death, reducedfertility, slower growth and development. Sulphur: found in lead-acid batteries. Health effects include liverdamage, kidney damage, heart damage, eye and throat irritation. Whenreleased in to the environment, it can create sulphuric acid. 9. And stillCadmium: The most common form of cadmium is found in Nickel-cadmium rechargeable batteries. The inhalation of cadmium can cause severe damage to the lungs and is also known to cause kidney damage.Lead and beryllium oxide: these are used as solder and thermal grease respectively and are both harmful and cause severe lung infections. 10. Health conditions: Many of the primitive recycling operations in Guiyu aretoxic and dangerous to workers health. 88% of workerssuffer from neurological, respiratory or digestiveabnormalities or skin diseases. Higher than averagerates of miscarriage are also reported in the region. Workers also "cook" circuit boards to remove chipsand solders, burn wires and other plastics to liberatemetals such as copper; use highly corrosive anddangerous acid baths along the riverbanks toextract gold from the microchips; and sweepprinter toner out of cartridges 11. Toxic Substances Present in E-waste There are many harmful materials usedin consumer electronics includinglead, cadmium, mercury and plastics. 12. Recycling techniques: In developed countries, electronic waste processing usually first involvesdismantling the equipment into various parts (metal frames, powersupplies, circuit boards, plastics), often by hand, but increasingly byautomated shredding equipment. The advantages of this process are the humans ability to recognize and saveworking and repairable parts, including chips, transistors, RAM, etc. Thedisadvantage is that the labour is cheapest in countries with the lowesthealth and safety standards. 13. Nations that have signed and ratified, along with nations that have signedbut have not ratified the agreement. 14. Map of e-waste recycling countries 15. E-waste disposal and its effects 16. Electronic waste in china: Guiyu, China, in Guangdong. Province is made up of four small villages. Itis the location of the largest electronic waste (e-waste) site onearth, China is believed to be the predominant recipient of the worldselectronic waste, with a roughly estimated one million tons being shippedthere per year, mostly from the United States, Canada, Japan, and SouthKorea. The waste arrives via container ships through the ports of HongKong or Pearl River Delta at Nanhai. 17. E-waste management and processtechniques: 18. The Problem IN Pictures 19. Once a rice village, the pollution has made Guiyu unable to produce crops forfood and the water of the river undrinkable. 20. Revolution of mobile technology byrecycling 21. What can you do? In order to lessen the amount of e-waste being produced, individualscan do many things:1. Keep your old electronics longer instead of replacing them.2. If discarding old electronics, be sure to recycle them at a trusted recycling center.3. Purchase efficient electronics that do not contain hazardous materials such as mercury and lead. 22. Uses by recycling of e-waste materials LEDS from old LED panels. Computer chips using old used gold metal. Creating new solar cells using old silicon wafers. Recycling silicon chip for making lithium ion batteries. Rolling up of nanowire batteries using from old silicon chips 23. The Issue Due to the breakneck speed of the modern world at developing newelectronics and discarding old ones, a huge problem is brewing. The recycling procedures used in disposal centers in rural china lead to toxicmaterials like lead to seep into the surrounding environment. This practice occurs all over places like India, Pakistan, Singapore, andspecifically, China. The example being studied is the small village of Guiyu, China, which hasbecome a centerpiece in this issue. 24. THE END.