[China Aluminum] Net: “There is no rubbish in the world, only misplaced treasures.†Excavating the surplus value of electronic waste, and truly making the best use of it, is not only an advanced environmental protection concept, but also a way worth advocating.
More recently, I would like to concentrate on the disposal of a batch of spent batteries and found that the community did not even classify the trash. This is not uncommon in the satellite city of New Delhi where I live. On the streets of India, the dumping of rubbish is commonplace, providing a lot of small animals with the convenience of feeding.
The battery contains polychlorinated biphenyls and is a carcinogen. A survey of soil samples from seven cities in India, such as New Delhi, Mumbai, Chennai, and Bangalore, showed that the average concentration of PCBs in industrial soils in India was twice the global level, and a large number of PCBs were commonly found in City and surrounding areas. Due to the large amount of e-waste generated, India's soil has been contaminated with organic materials such as heavy metals and PCBs for decades. The absence of supporting garbage collection projects has created conditions for continued pollution.
Not only India, but also many developing countries are experiencing e-waste pollution. According to statistics, the number of discarded electronic products in East Asia and Southeast Asia increased by 63% between 2010 and 2015, and the total amount of e-waste and per capita output both increased rapidly, and the speed exceeded the population growth. In 2007, if Apple launched a smartphone based on its predecessor, it has so far sold 7 billion smart phones globally, including non-smart phones. In 10 years, the total mobile phone production reached 17 billion, of which more than half have been Abandoned. It is no wonder that some scholars have expressed emotion: "For many countries lacking an environmentally friendly e-waste management infrastructure, the sudden increase in the amount of such waste is worrying."
Although the reduction of e-waste has become a consensus, how to correctly handle it is to say it well and to do less. Because the proceeds from the sale to the recycler were small and inconvenient, some people chose to throw it away. As everyone knows, a No. 1 battery can contaminate one square meter of land; a button cell can contaminate 600,000 liters of water; the mercury content of an energy-saving lamp infiltrates into the groundwater layer and will generate hundreds of tons of wastewater. With the increasing burden of electronic waste collection and processing, how to reduce the pressure on environmental governance has become a practical issue that countries have to face.
In fact, the manufacturing of polluting e-waste is also changing waste into treasure. The key lies in changing awareness and handling methods. The e-waste itself comes with many useful and expensive materials. In a complex electronic component, there are more than 60 chemical elements. If you properly handle it, you can't find the "mother's house." The German second-hand electronics market is relatively mature. With convenient services, old electronic products are no longer "useless old bones"; France is enacting a nationwide e-waste recycling law to make manufacturers bear the main responsibility for recycling e-waste; In Japan, not long ago, the Tokyo Olympic Organizing Committee called on the people to donate as much as possible waste electronic products in order to recycle metal and produce all medals for the 2020 Olympic Games. There is a famous saying in the recycling industry that “there is no rubbish in the world, only the misplaced treasuresâ€, and the exploration of the surplus value of e-waste to make the best use of it is not only an advanced concept of environmental protection, but also a lifestyle that is worth advocating.
We are living in a rapidly changing technology era, and the speed of electronic product updates will continue to accelerate. Surveys show that even in Europe, where environmental protection is very important, only one-third of e-waste is currently recycled, and most of the remaining e-waste of mobile phones, computers, and television are illegally traded and thrown away. “Regular mismanagement has occurred in every country, and thefts and illegal recycling are commonplace.†“Consumers don’t know where to look for a recycling centerâ€... There are many things that can be done to eliminate the shortcomings of electronic waste as soon as possible. No matter which method is adopted, solving the next kilometer of e-waste "landing", today's garbage can become tomorrow's resources.
The electric tool is a kind of small electric motor or electromagnet as the power. A small tool that drives the working head through a transmission mechanism. There are a wide variety of electric tools, complete functions, easy to carry, and simple to use. They have been widely used in various industries and have entered the family. Electric tools are divided into handheld and movable There are two types. Hand-held power tools are more flexible, convenient and widely used. Many varieties have become necessary tools for production and life. There are many brands of power tools. According to the functions and uses of power tools, they are divided into nine categories. . Mainly are the following nine categories:
1. Metal cutting power tools, metal cutting power tools mainly include: electric drills, magnetic drills, electric reamers, electric knives, electric scissors, electric punching shears, electric reciprocating saws, electric pipe saws, electric tapping machines , Electric profile cutting machine, electric oblique cutting machine, electric weld beveling machine, multifunctional electric tools.
2. Sanding power tools, sanding power tools include; straight grinders, angle grinders, flexible shaft grinders, mold electric grinders, flat sanding machines. Belt sander,. Straight polishing machine, disc polishing machine.
3. Assembly electric tools, assembly electric tools include: electric wrenches, fixed torque electric wrenches, electric screwdrivers, electric expansion planes, electric self-powered screwdrivers, electric pull willow guns.
4. Construction road power tools, construction road power tools including: concrete vibrator, electric hammer, hammer drill, impact drill, electric pick, electric floor polisher, electric stone cutter, willow bolt wrench, wet grinding Light machine, electric steel disc cutter, electric pipe threader, electric pipe bender, electric engineering drill, electric scraper, electric brick wall milling machine
5. Mine power tools, mining power tools include: electric rock drilling face, rock electric drill,
6. Railway power tools, railway power tools include: railway electric wrench, sleeper electric drill, sleeper electric pick
7. Power tools for agriculture and animal husbandry, including: electric scissors machine, electric tea plucking machine, electric wine spraying machine, electric hoof repairing machine, electric food sampling machine.
8. Forestry power tools, forestry power tools include electric band saws, electric planers, electric plugs, woodworking multi-tools, electric pruners, electric pruners, electric slotting machines, electric chain saws, electric curves Saws, electric wood milling, woodworking knife grinders, electric circular saws, electric wood drills.
9. Other types of electric tools. Other types of electric tools include: plastic welding guns. Electric cloth cutting machine, electric air Pump, electric pipe cleaning machine, electric crimping machine, plaster chainsaw, electric engraving machine, electric rust remover, plaster electric shears, electric carpet shears, electric dental drill, electric sternum saw, electric bone drill ,
Electronic Tools,Hand Drill,Electric Hammer,Electric Saw,Angle Grinder
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