Recyclable
The five main categories include waste paper, plastic, glass, metal and fabric.
Waste paper: mainly includes newspapers, periodicals, books, and all kinds of wrapping paper. However, note that paper towels and toilet paper are not recyclable because they are too water-soluble.
Plastic: all kinds of plastic bags, plastic foam, plastic packaging, disposable plastic lunch boxes tableware, hard plastic, plastic toothbrushes, plastic cups, mineral water bottles and so on.
Glass: mainly includes all kinds of glass bottles, broken glass pieces, mirrors, thermos flasks and so on.
Metallic: mainly includes cans, can boxes, etc.
Fabrics: mainly include discarded clothes, tablecloths, washcloths, schoolbags, shoes and so on.
These wastes can reduce pollution and save resources through comprehensive treatment and recycling. For example, each recycled 1 ton of waste paper can make good paper 850 kilograms, saving 300 kilograms of wood, than the same amount of production to reduce pollution by 74%; each recycled 1 ton of plastic beverage bottles can be obtained from 0.7 tons of secondary raw materials; each recycled 1 ton of scrap iron and steel can be smelted 0.9 tons of steel, smelting with ore to save 47% of the cost of smelting to reduce air pollution by 75%, reducing 97% of the water pollution and solid waste.
Non-recyclable
Kitchen waste
Including leftovers, bones, vegetable roots and leaves, peels and other food waste. It is composted by biotechnology in-situ treatment and can produce 0.6-0.7 tons of organic fertilizer per ton.
Other garbage
Including in addition to the above categories of garbage, brick ceramics, slag, toilet paper, paper towels and other difficult to recycle waste. Adopting sanitary landfill can effectively reduce the pollution of groundwater, surface water, soil and air.
In fact, the big stick bone because "difficult to corrode" is included in the "other garbage". Corn kernels, nut shells, fruit kernels and chicken bones are kitchen waste.
Toilet paper is not recyclable
Toilet paper, toilet paper dissolves when exposed to water, and is not considered recyclable "paper", similar to pottery, cigarette boxes and so on.
Kitchen waste bagging
Commonly used plastic bags, even if they are biodegradable, are far more difficult to corrode than kitchen waste. In addition, plastic bags themselves are recyclable waste. The correct way to do this is to empty the kitchen waste into the garbage can, and throw the plastic bag into the "recyclable trash" bin.
Fruit shells count as other garbage
In the classification of garbage, "fruit shells and melon skin" is identified as peanut shells, which is indeed a food waste. Home leftover waste cooking oil, also categorized in the "kitchen waste".
Dust is considered other garbage
In the classification of garbage, dust belongs to "other garbage", but leaf litter belongs to "kitchen garbage", including the flowers in the house.
Toxic and Hazardous Waste
Waste that contains heavy metals or toxic substances that are harmful to human health, or that cause actual or potential harm to the environment. Including batteries, fluorescent tubes, light bulbs, mercury thermometers, paint buckets, some home appliances, expired medicines, expired cosmetics and so on. These wastes are generally disposed of using separate recycling or landfills.
Question 2: What are the industrial wastes Industrial wastes mainly include:
1. Metallurgical slag
Refers to all residual wastes discharged in the smelting process of various metals or after smelting. Such as blast furnace slag, steel slag, a variety of non-ferrous metal slag, ferroalloy slag, iron slag and a variety of dust, sludge and so on.
2. Mining slag
In a variety of ores, coal mining process, the number of slag produced is extremely large, including a wide range of mines, stripping waste rock, digging waste rock, coal gangue, ore dressing waste rock, selective washing waste slag, a variety of tailings and so on.
3. Fuel slag
Waste generated by fuel combustion, mainly cinder, flue ash, coal dust, shale ash and so on. 4. Chemical slag
Chemical industry production of industrial waste discharged, mainly including sulfuric acid mine slag, calcium carbide slag, alkali slag, gas furnace slag, phosphorus slag, mercury slag, chromium slag, salt sludge, sludge, boron dregs, waste plastics, as well as rubber crumbs and so on. In industrial solid waste, also includes glass slag, ceramic slag, paper slag and construction waste materials.
Industrial waste, i.e., industrial solid waste, refers to all kinds of slag, dust, and other wastes, etc., discharged by industrial and mining enterprises in the course of their production activities.
Question 3: What are the types of garbage There are two main categories of garbage: domestic garbage and industrial garbage.
Domestic waste can be generally subdivided into four categories: recyclable waste, food waste, hazardous waste and other waste.
Industrial waste is divided into general industrial waste and industrial hazardous solid waste.
Question 4: What are the types of garbage Garbage can be divided into five categories:
1 domestic garbage (recyclable garbage and organic matter)
2 construction waste (landfillable bricks and cement blocks and back to the Jin Tu garbage)
3 industrial garbage (a variety of oils and inorganic matter)
4 hospital medical waste (a variety of dirt, pharmaceutical packaging, and other waste). Our country has medical waste disposal regulations, not general small towns are difficult to implement, is a high-risk thrift waste, to be treated with caution)
5 human waste (a variety of qualities are very low quality garbage, known as slag stuff)
Question 5: Industrial waste will have those wastes? And how do factories deal with it? The world's popular recycling logo, also known simply as the recycling logo, is printed on goods and commodity packages
equipment. The meaning is: first, to remind people to send the goods or packaging with this logo to recycling; second, to mark the goods or packaging of goods is made of renewable materials, which is good for the environment
protection.
Recently, some cities and towns have added a lot of brightly colored trash cans with labels telling people
how to separate their trash into different categories. But open these garbage cans, often found inside the garbage is still mixed
together, and most of the leftovers and plastic bags, pieces of paper, such as glass bottles, waste newspapers and other "valuable"
and not much. These worthless garbage how to deal with, what kind of garbage classification mode suitable for us?
Residents at home have been classified garbage, but the recyclables are not thrown, but sold to the purchase station
June 17 at noon, in Beijing, Chaoyang District, Hongmiao near the community to do the work of the master Cao stomped three rounds
flatbed car to the Baiziwan recycling station, the car was carrying two large knitting bags, knitting bags padded with the dismantling of the flattening of the hard cardboard boxes, and there are also two large plastic buckets and a number of plastic bags, and some of them are not suitable for use in the recycling industry. The car also has two large plastic buckets and some scattered things - these are all from the
community garbage in the past two days to pick out and save. In a collection of waste plastic, waste glass stalls, Master Cao called for help
Busy to lift the woven bag off the car to unlock the mouth, the bag of glass bottles, plastic bottles, cans fell to the ground. The owner
and the helpers skillfully sorted inventory, a moment to finish the count: 90 glass bottles, plastic bottles 212, easy to pull
cans 160, there is a small pile of waste plastic daily necessities. This trip, Cao master income of more than 100 yuan.
When the sorting
time, Cao master said: "This is the classification of garbage!"
Baiziwan recycling station covers an area of more than 20 acres, inside a variety of waste products piled up in the mountains, are nearby communities
waste collectors or do cleaning people sold here. Zhao master of the red temple closed cleaning station, said residents at home
in the garbage classification - can be sold to sell, can not be sold to throw. So with the classification of garbage cans residents also
not classified thrown. A woman said that the good thing about garbage classification is that it can be divided into valuable things to sell.
The main thing that is thrown into the garbage cans is food waste and miscellaneous items.
Scrap recycling undoubtedly plays an important role in the recycling of resources, but the implementation of waste classification, waste disposal
industrialization, but also make the coordination of waste recycling treatment and scrap recycling relationship has become a problem that needs to be solved. Two years
ago, a company in Beijing to the European model of waste disposal, want to classify the recovery of waste plastics as raw materials
processing of recycled materials for sale, but they found that the number of plastics picked out of the ingots is limited, can not meet the normal operation of the equipment
they had to pay to buy waste plastics. After a year and a half of hard work, production was halted and the equipment, worth more than four million dollars
, was left idle.
The property company to advance money, the market operation of the enterprise is not good money, the industrialization of garbage disposal needs policy support
Said the classification of Beijing's garbage, can not not say Xuanwu District, Baixifang Street, Jiangong Nanli district. This small
district from April 1999 to implement the classification of garbage, over the past few years to obtain more than 20 honorary titles, but also through
international quality standards certification and international environmental certification. The person in charge of the neighborhood committee and the property company said,
The garbage classification can insist on the implementation of the city, the district, the street at all levels of leadership because of the importance of the city, the district, the street. Many leaders
came here, foreign guests also came to visit, has been honored so that no one can slack off. District property management
Chi Yunlong, director of the district, 700 residents of each household to pay 3 yuan per month for garbage disposal fees, to pay the wages of four janitors
are not enough. The cleaners will not be divided into good garbage sorting again, divided into good categories of garbage by the environmental
sanitation department to transport away. There are two residents in the neighborhood who recycle waste products, and residents save bottles and waste paper to sell to them.
It can be said that the property company is operating at a loss.
Not most neighborhoods get this much attention and investment from *** and businesses. For a long time,
China's urban garbage disposal has been treated as a public good by ***. Now Beijing's garbage disposal
transport processing by the districts of sanitation service centers and four sanitation engineering group companies operate, these units by
*** full funding. Many industry insiders believe that the industrialization of waste disposal is the trend, conducive to the industry
competitive development, but there are still a lot of constraints, such as the classification of garbage without legal norms constraints, garbage
garbage disposal fee system still need to continue to reform the garbage disposal industrialization of supporting policies have not yet been introduced, and so on.
An example of this is the practice of Beijing Peng Yuan Environmental Engineering Co. The company began in the second half of 2000,
with corporate funds in Beijing more than 200 ...... >>
Question 6: What are the ways to deal with industrial solid waste Various kinds of slag, dust and other wastes discharged into the environment during industrial production. Can be divided into general industrial waste (such as blast furnace slag, steel slag, red mud, non-ferrous metal slag, fly ash, coal slag, sulfuric acid slag, waste gypsum, salt sludge, etc.) and industrial hazardous solid waste control of solid waste on the environment and human health hazards is the main way to implement the resourcefulness, harmlessness, and reduction of solid waste treatment. a. Recycling of resources Recovery of energy and resources by recycling of solid wastes. The recycling of industrial solid waste must be based on the production characteristics of specific industries, and attention should also be paid to such factors as technical feasibility, product competitiveness and the ability to obtain economic benefits. b. Harmless Disposal The harmless disposal of solid waste refers to the proper treatment or disposal of solid waste so that the solid waste or the harmful components therein cannot harm the environment or are transformed into environmentally harmless substances. Commonly used methods include: landfill; incineration; and composting. Edit this section of the treatment and utilization of solid waste control of solid waste pollution of the environment and the recovery of resources from solid waste engineering technology and management measures
Question 7: What are the new technologies for the resource utilization of industrial solid waste Sorting technology, that is, a variety of solid waste can be recycled waste or unfavorable to the requirements of the subsequent treatment process of the waste components using appropriate technology to separate out the process, including : manual picking and mechanical sorting.
Chemical leaching technology, is to let the solvent selectively dissolve solid waste in a certain purpose component, so that the component into solution and achieve the separation of other components of the waste process. The process applies to the complex composition, embedded in fine particle size and low content of valuable components of mining solid waste, chemical and metallurgical processes, such as slag, these traditional sorting techniques often have little effect, and often use chemical leaching technology. Chemical leaching techniques include simple acid leaching, oxidizing acid leaching, reducing acid leaching, ammonia leaching, sodium carbonate solution leaching, caustic soda solution leaching, sodium sulfide solution leaching, sodium hypochlorite leaching.
Biological treatment technology, is the use of microbial metabolism to make solid waste decomposition, mineralization or oxidation process, including biometallurgy, bioseparation and biotransformation.
Thermal conversion technology, that is, under high temperature conditions to make solid waste recyclable substances into energy processes, divided into pyrolysis and incineration.
Preparation of building materials technology, that is, under certain conditions, after a series of its own physicochemical action, solid waste will be made into usable building materials, including cementitious materials, bricks, blocks, glass, ceramics, cast stone, aggregates and so on.
Question 8: What are the hazards of garbage? Garbage encroachment on the land, blocking rivers and lakes, health hazards, affecting the landscape, endangering the growth of crops and human health phenomenon, called garbage pollution. Garbage includes industrial waste and domestic garbage two parts. Industrial waste is the waste generated during industrial production and processing, mainly including coal research stone, fly ash, steel slag, blast furnace slag, red mud, plastic and petroleum waste. Domestic waste is mainly kitchen waste, waste plastics, waste paper, broken glass, metal products and so on. In the city, due to the increasing population, the domestic garbage is increasing at the rate of 10% per year, which constitutes a big public nuisance. The serious harm of garbage is, first of all, the encroachment of a large amount of land. Secondly, it pollutes farmland. Thirdly, it pollutes groundwater. Fourth, pollution of the atmosphere. Some organic substances in industrial waste, can be at a certain temperature through biological decomposition to produce a bad smell, thereby polluting the atmosphere. Fifth, the spread of disease. Household garbage contains germs, parasites, if used directly as agricultural fertilizer, people eat the application of such fertilizer vegetables, fruits and vegetables, may get infectious diseases. With the development of the economy and the improvement of people's life, the urban garbage has increased a lot. Garbage disposal has become an urgent problem in the comprehensive improvement of urban environment. Food pollution food is one of the three elements that constitute human life and health. Once food is contaminated, it is going to jeopardize human health. Food contamination refers to a variety of food people eat, such as grain, fruits, vegetables, fish, meat, eggs, etc., in the production, transportation, packaging, storage, sales, cooking process, mixed with harmful and toxic substances or germs. Food contamination can be divided into two categories: biological contamination and chemical contamination. Biological contamination refers to the contamination of food by harmful viruses, bacteria, fungi and parasites. Bacteria and fungi, which are microorganisms, are invisible to the human eye. Eggs become smelly and vegetables rot, mainly because bacteria and fungi are at work. There are many types of bacteria, some bacteria such as Aspergillus, yellow bacillus, enterobacteria can directly contaminate animal food, but also through the tools, containers, washing water and other ways to contaminate animal food, so that food spoilage. There are many types of fungi, more than 50,000 species. Mold, which first served mankind, is a type of fungus. Nowadays, people can't eat curd and sauce products without mold. However, more than a hundred of these strains produce toxins, and the most toxic is aflatoxin. After the food is contaminated by this toxin, it will cause primary liver cancer in animals. According to a survey, the incidence of liver cancer in areas with high aflatoxin in food is dozens of times higher than in other areas. British scientists believe that breast cancer may be related to aflatoxin. China's East China, Central and South China's climate is warm and humid, aflatoxin contamination is more common, mainly contaminated in peanuts, corn, followed by rice and other foods. Parasites contaminating foodstuffs mainly include roundworms, tapeworms, trichinella, etc. These parasites generally contaminate water and soil through the feces of sick people and animals, and then contaminate fish, fruits and vegetables, which can cause parasitic diseases after people eat them. Chemical contamination is caused by harmful and toxic chemical substances contaminating food. A variety of pesticides is a major source of chemical contamination of food, as well as lead, cadmium, chromium, mercury, nitro compounds and other hazardous substances such as industrial wastewater, waste gas and waste residue; food coloring, preservatives, coloring agents, sweeteners, curing agents, antioxidants, food additives; food packaging for plastic, paper, metal containers and so on. If food is packaged in waste newspapers and old magazines, PCBs contained in these papers will enter the human body through food, thus causing diseases. PCB is a general term for more than 200 kinds of chlorinated aromatic hydrocarbons, which are produced and used in considerable quantities in the world today. It is well documented that PCBs have been found in river water, seawater, aquatic organisms, soil, atmosphere, wildlife, as well as human milk and fat, and even in penguins in the Antarctic and whales in the Arctic Ocean. During food processing, some food coloring can be added to maintain bright colors. But some synthetic colors are toxic. To prevent food contamination, we should not only pay attention to dietary hygiene, but also from the production, transportation, processing, storage, sales and other aspects. Only in this way can we solve the problem fundamentally. Soil pollution land is the basis of human food and clothing, in the scientific and technological development of today, the land has suffered unprecedented destruction. Among them, soil pollution like a soft knife, is depriving a large area of fertile land productivity. Soil pollution mainly refers to the soil of certain harmful substances greatly exceed the normal content, the land can not eliminate these harmful effects of the phenomenon. Severe soil pollution can lead to crop growth and development of the decline or even wilting and death, these consequences of pollution can be detected in time. More soil pollution has no obvious manifestation, but reduces the quality of agricultural products, especially ...... >>