The value of urban garbage lies in some urban-rural fringe areas, piles of high garbage mountains, and groups of ragged men, women and children are busy tossing, digging and picking up, regardless of the diffuse odor and the bites of mosquitoes and flies. Some people make a fortune by picking up rubbish. There is no doubt that there are resources in garbage. So, how much of what we throw away in our daily life can be used? Look at these figures:

1. toothbrush: a toothbrush for middle school students made by Beijing Stomatological Hospital, weighing 9.1g. If it is replaced every three months, according to Beijing120,000 population, the weight of toothbrushes lost in the whole year is 436.8 tons. This is not counting the disposable toothbrushes discarded by the hotel;

2. Toothpaste: "Colgate" full-effect fluoride toothpaste, net content 1.20g, box weight 1.9g, toothpaste tare weight 1 .6g. If every household 1 month uses1piece, 3 million households will be discarded one year.

3. Soap: The net content of "Shufujia" soap is 1.25g, and its carton weight is 7.4g If 3 million households use 1 piece every month, 266.4 tons of cartons will be discarded in one year;

4. Dairy products: The packaging bag with a net content of 243 ml of Beijing Sanyuan VAD fresh milk weighs 3. 1 g.. If 2 million people use a bag every day, the total weight of plastic bags lost in one year is 2263 tons;

5. Antihypertensive drugs: "Beijing Jiangya No.0" 10 carton and empty medicine board produced by Beijing Shuanghe, with the weight of instructions of 1 1.3g, and the waste materials account for 89% of the total weight. According to statistics, more than 40% of the elderly in Beijing suffer from this disease, and about 560,000 people need to take one tablet a day for life, losing 2.036 tons of "No.0" packaging every year.

In fact, we throw away a lot of recyclables every day, and the waste mentioned above is only the tip of the iceberg. According to the statistics of Beijing Environmental Protection Foundation, there are 362,000 tons of waste plastics in Beijing, and one ton of waste plastics can produce 0.37 ~ 0.73 tons of oil. A profit of 8000 yuan can be obtained from recycling every ton of plastic in beverage bottles. There are 388,000 tons of waste paper. For every ton of waste paper recovered, 0.85 ton of paper can be made, saving 3 cubic meters of wood and 300 kilograms of alkali, which reduces pollution by 74% compared with the same amount of paper. Waste glass 1.5 million tons. Recycling glass from broken glass can save energy 10 ~ 30%, reduce air pollution by 20% and reduce mining waste residue by 80%. There are 237 million waste batteries. Using waste batteries can recover precious heavy metals such as cadmium, nickel, manganese and zinc, and at the same time reduce the pollution of heavy metals to the environment and the harm to human health. There are 35,000 tons of scrap metal. For every 1 ton of scrap steel recovered, 0.9 ton of steel can be refined, which can reduce 75% of air pollution, 97% of water pollution and solid waste and save 47% of smelting cost compared with steelmaking with ore. Waste food factory 1, 265438+3000 tons. For every ton of such garbage recovered, 0.6 tons of organic fertilizer can be produced, and garbage fuel can also be produced as fuel for power generation and heating. The outlet of urban garbage The current international trend of garbage disposal is "integrated garbage management", that is, mobilizing the whole people to participate in the "3r" action and reducing the amount of garbage generated. The slogan of the three R's is: 1. Reduce waste; Second, make the best use of everything (reuse); Third, recycling. When consumers in the whole society do this, the total amount of domestic waste and the burden of municipal waste treatment will be greatly reduced, and the service life of landfill will be extended. This saves land and reduces the threat of garbage pollution. As China is a developing country, all aspects of construction need funds, and it is difficult to change the serious shortage of environmental protection funds immediately. Moreover, although China is a big country in total resources, its per capita resources lag behind the world. Therefore, we can't completely copy the western developed countries, rely on high investment and high technology to absorb garbage and expect it to be in place once, nor can we ignore the huge garbage resources and let them flood. China's urban garbage disposal should go its own way, give full play to the people's government's characteristics of being good at propaganda, organization and leading the masses, adopt legislation, change from simple to complex, from low-level to high-tech, rely on the masses, do what they can first, gradually increase investment in environmental protection, and tend to be perfect. President Jiang Zemin pointed out: "We must never waste resources, take the road of pollution first and then treatment, and never eat ancestral rice to harm future generations." To achieve sustainable development and form a virtuous circle of urban garbage, the most fundamental way out is to classify the garbage from the source, improve the recycling efficiency, and realize the reduction, recycling and harmlessness of garbage as soon as possible. Reducing the generation of garbage from the source is the most effective measure to reduce garbage mountain. 1, clean vegetables are on the market. In the past, in late autumn and early winter in Beijing, the streets and alleys were full of dirty and thin cabbages, and sanitation workers kept transporting them out with big trucks. Now, when cabbage is returned to the field and clean vegetables are on the market, the dirty scene has disappeared. 2. Plastic bags have a price. To control white pollution, we must reduce it from the source. The government should prohibit vegetable vendors from providing plastic bags for free, forcing people to mention cloth bags and baskets again; 3. Merchants recycle product packaging. Some household appliances are mostly repaired at home, and the merchants are responsible for recycling and packaging after delivery (Beijing Shuanghe Pharmaceutical Factory has implemented recycling); 4. Simplify the packaging. On the premise of ensuring the quality of goods, reduce the weight and volume of packaging. 1996 The "Shufujia" soap produced in April weighed 7.8 grams, but now it weighs 7.4 grams, and the packaging of each soap is 0.4 grams less. If 3 million households use 1 sheet every month, it will save paper consumption 14.4 tons and reduce garbage 14.4 tons. 5. resist luxury packaging. The packaging volume of goods far exceeds the weight of goods, which causes a lot of waste. Pollution tax should be imposed on such manufacturers.

Domestic garbage can be classified into five categories: waste paper, plastic, glass, metal and organic garbage. The battery is small and harmful, so it is collected separately. The first four categories can be placed in an inconspicuous place at home alone, or put into a sorting box, and then transported by the recycling department or professional transportation team for a few days as appropriate, and sent directly to relevant factories for raw materials. The remaining domestic garbage can still be collected and transported by the sanitation department. This will greatly reduce the total amount and volume of garbage, reduce the manpower and material resources consumed in garbage transfer, and the environmental pollution caused by excessive garbage stacking, reduce the burden of garbage removal and treatment in the sanitation department, and extend the service life of expensive garbage landfills. Due to the accelerated pace of people's life and the improvement of living standards, most of the garbage increased every year can be recycled. It can be said that more than two-thirds of the garbage can be recycled, so that the annual garbage disposal cost in Beijing can be reduced from more than 500 million yuan to 200 million yuan. HB composite board made of waste plastics and paper can replace all kinds of plates and has a wide range of applications in construction and other fields. The production process consists of nine processes, such as recycling materials, sorting, cleaning, drying and chopping. If you sort the discarded plastic and paper and put them in from the discarded people, they will all be clean. Sorting, cleaning, drying and other processes can be omitted during recycling, which not only saves cleaning water, but also reduces the generation of sewage, saving energy and labor.

According to the prediction of experts such as American Emerging Prediction Committee and Japanese Ministry of Science and Technology, in the future 10 years, there will be 10 emerging technologies in the fields of energy, environment, agriculture and medicine. Among them, emerging technologies related to garbage disposal rank second. Garbage disposal industry will become a new economic growth point in 2 1 century. Some cities are already doing this. After the Daqing Waste Treatment Plant is put into operation, it can not only "eat up" all the municipal waste (800 tons) in Daqing, but also produce 350 tons of organic fertilizer every day, creating a profit of 40 million yuan, especially giving priority to the re-employment of laid-off workers. 199965438+1October 12 Science and Technology Daily reported that Shenzhen New Invention Technology Development Co., Ltd. independently developed alkyd modified environmental protection coatings by using waste foamed plastics. With an investment of 2 million yuan, the annual output value can reach10,000 yuan, and the profit is 20 million yuan. The investment can be recovered in that year. It can be seen that the urban garbage disposal industry can not only recover the garbage loss of 25 billion yuan, but also create tens of billions of new economic benefits, bringing social benefits of a clean and comfortable living environment, not to mention creating considerable re-employment opportunities.