Waste incineration power generation, since the birth, controversy! The main burning party, the anti-burning party, the slobber screaming every day, the more it beats. The main burning party said that garbage is rubbish, burned in a fire, and can generate electricity. It is clean energy and green energy. The anti-burning party said that garbage is a resource, and it is a treasure that is misplaced. It is a pity to burn a fire.

    The main and the faction believe that the main burning party has the opposite side, that is, some garbage does not burn really can not, such as broken clothing, broken shoes, rotten wood, branches, curtains, straw, sacks, broken quilts, toilet paper, sanitary napkins, etc. High calorific value combustibles, do not burn, it seems that there is really no good treatment. Mixed garbage incineration does not seem to be scientific. For example, high-moisture organic waste incineration, first, increased operating costs, and second, energy waste is severe. For example, how much heat does it take to burn a rotten watermelon? For example, burning bricks, cement blocks, glass, ferromagnetic materials and other inorganic wastes to more than a thousand degrees, how much heat is wasted? For example, batteries, tube lamps, plastic waste, what kind of harmful gases will be produced after incineration? How much operating cost does it take to process these harmful gases to national standards? Not to mention meeting EU standards. It is precisely after these wastes are sorted out that they can be utilized on the spot, which not only reduces operating costs, but also increases resource revenues. If this is not the case, if it is really a mixed waste incineration is a omnipotent, green energy, then, first, the government does not have to pay a high processing fee, the national grid does not have to pay up to 0.65 yuan per grid of electricity subsidies, Let its grid subsidies be equal to hydropower or thermal power. Second, President Xi and Premier Li do not emphasize the classification of garbage and the reduction of garbage. They should call on the people of the whole country to produce more garbage, use garbage to generate electricity, and leave limited coal resources and petroleum resources to future generations.

    On December 21, 2016, President Xi pointed out at the 14th meeting of the Central Financial and Economic Leading Group that the general implementation of the garbage classification system has improved the living environment of more than 1.3 billion people, and whether the related waste can be reduced, resourced and harmless. deal with. It is necessary to speed up the establishment of waste disposal systems for classified, classified, classified, and classified treatments, and to form a waste sorting system based on the rule of law, government promotion, national participation, urban-rural integration, and local conditions, and strive to improve the coverage of the waste classification system.

    On March 5, 2017, Premier Li Keqiang pointed out in the government work report of the Fifth Session of the 12th National People's Congress that it is necessary to strengthen the comprehensive improvement of urban and rural environment and generally implement the garbage classification system. The word "garbage classification" has once again been noticed by the people of the country.

    On March 18, 2017, the General Office of the State Council forwarded the Implementation Plan of the Domestic Waste Classification System of the Ministry of Housing and Urban-Rural Development of the National Development and Reform Commission (Notify the State Council [2017] No. 26) that the plan calls for the establishment of classified distribution, classified collection, and classified transportation. The classified waste treatment system forms a waste sorting system based on the rule of law, government promotion, national participation, urban-rural integration, and local conditions. It strives to improve the coverage of the waste sorting system and classifies domestic waste as an important measure to promote green development. Urban management and services create an excellent living environment.

    The above policy seems to provide a strong theoretical basis for the anti-burning faction. Some of the anti-burning factions are in line with national policies, such as classification and recycling. However, resourceization cannot be idealized. Not all garbage can be produced. It is necessary to base on China's current situation and carefully analyze China's garbage components. Some garbage can't be burned. What we can do is to burn less, not to burn, especially the combustibles mentioned above, especially toilet paper, sanitary napkins, and how to deal with such garbage. What's more, the calorific value of such garbage is as high as 2000-3500 kcal, which is 3-4 times higher than the calorific value of the original mixed garbage.

    Therefore, China's garbage disposal should take a road of “main burning party + anti-burning party = main and dispatching” (classification + incineration power generation). It should be said that this is the inevitable direction of China's garbage disposal business. After all, the most advanced waste incineration power generation in foreign countries. Technology is also based on incineration power generation based on strict classification.

    Take the 1000 tons of garbage disposal project as an example. The mixed waste incineration power generation has the same total investment as the classification + incineration power generation. (mixed waste incineration power generation requires 2 incinerators, classification + incineration power generation, and an incinerator is required. The selection system, one less incinerator), is about 500 million. The garbage composition is about the national average: 50% organic matter, 30% combustibles (heat value 2000-3000 kcal), inorganic material 5%, plastic 10%, ferromagnetic material 0.5%, furnace dust and other garbage 4.5%. The average calorific value is 600-800 kcal. The specific comparison is as follows:

    1. The total exhaust emissions from the mixed waste incineration power generation project are (assuming 1000 cubic meters per day), then the total emissions from the classification + incineration power generation must be 300 cubic meters per day (only 30% of the incinerators), and the environmental benefits are very obvious. ;

    2. The net income of mixed waste incineration power generation is: the treatment fee given by the local government + the grid subsidy given by the State Grid - the operating cost = net profit. For example, according to the processing fee of 50 yuan per ton, the original mixed garbage tons of garbage power generation of 300 degrees, grid-connected subsidies of 0.65 yuan per degree, processing costs of 100 yuan per ton:

    The net income of mixed waste incineration power generation is: 1000 tons X50 yuan (50,000) + 1000 tons X300 degrees X 0.65 yuan (194,000 yuan) - 1000 tons X100 yuan (100,000 yuan) = 144,000 yuan

    The net income of sorting + incineration power generation is: the processing fee given by the local government + the grid subsidy from the national grid + the revenue of the resource product - the operating cost of the ton = net income. The classified heat-burning combustibles generate 1000 degrees of waste per ton of garbage; the operating costs of other wastes after classification will not exceed 50 yuan per ton of waste; the income of resource-based products is: organic fertilizer + plastic + ferromagnetic + building materials - Tons of treatment costs = net income. According to the analysis of garbage composition, it can be obtained: 250 tons of organic fertilizer X400 yuan + 100 tons of plastic X500 yuan + 5 tons of ferromagnetic material X1000 yuan + 100,000 pieces of standard brick X0.5 yuan - 700 tons X50 yuan = 170,000 yuan (organic fertilizer The price implements the organic fertilizer subsidy policy of Jiangsu Province, and the rest is estimated based on the lowest market price). According to this calculation, then the net income of classification + incineration power generation is: 1000 tons X50 yuan (50,000) + 300 tons X1000 degrees X 0.65 yuan (194,000) + resource product income 170,000-300 tons X100 yuan (30,000 ) = 374,000 yuan.

    The net income difference between classification + incineration power generation and mixed waste incineration power generation is: 374,000 yuan -144,000 yuan = 230,000 yuan, that is to say, classification + incineration power generation has a daily income of 230,000 yuan more than mixed waste incineration power generation. very obvious.

    3. For the employment arrangement of the society, 100 people are employed in the mixed waste incineration arrangement, and the investment rate of 100 million yuan is only 20 people; the classification + incineration power generation has a minimum employment of 300 people, and the investment rate of 100 million yuan is 60.

    It can be seen that the garbage disposal is not in the main or anti-burning, but in the main and classification, the classification is the key! However, relying solely on policy coercion or residents' self-consciousness, it is feared that it will also cost the people and the people. After all, the cultivation of environmental awareness is not a day's work! Therefore, vigorously developing mechanized sorting technology should be the development direction of garbage disposal. Whoever seizes the commanding heights of garbage sorting technology will occupy the entire garbage disposal market!