Municipal domestic waste resource recovery processing method with zero pollution, zero release and harmlessness

Abstract

The invention provides a municipal domestic waste resource recovery processing method with zero pollution, zero release and harmlessness, which mainly comprises 'CXEP Six Items and Sixteen Systems': rapidness of domestic waste treatment, harmlessness of closed-type treatment, daily clearance of the waste, resource recovery of the waste, economic effectiveness, and industrialization of organic fertilizers; and 'CXEP Sixteen Treating Systems': automatic feeding , large waste crushing, automatic breaking and sorting, organic matter sorting, plastic pneumatic separation and magnetic separation, high-temperature and high-pressure sterilizing, disinfecting and spraying, fertilizer preparing, building materials manufacturing, plastic granulating, oil refining, combustible pyrolysising, residual-heat utilizing, regenerant utilizing, waste gas treating, sewage treating, and automatic monitoring and detecting. According to the invention, the occupation area is small, sorting is carried out by automatic manipulators, and resource utilization is realized; and dioxin and poison gas cannot be generated without burning the waste, secondary pollution is avoided without releasing and landfilling the waste, the harmlessness rate reaches one hundred percent, and the worldwide problem of 'waste siege' is thoroughly solved.

Description

technical field [0001] The present invention relates to a zero-pollution, zero-emission, and harmless recycling method for recycling urban domestic garbage, and in particular to a "six modernizations" of quickness, harmlessness, no surplus, resource utilization, benefit utilization, and industrialization Domestic waste recycling treatment technology. Background technique [0002] my country is the country with the heaviest garbage burden in the world. The 668 cities in the country produce more than 300 million tons of garbage annually, and the garbage growth rate reaches more than 10%. China's annual garbage production has accounted for the world's total. a quarter above. There are now 72 billion tons of garbage in the country, covering large, medium and small cities and towns, covering an area of ​​540 million square meters. Almost all cities and towns across the country are surrounded by garbage, forming a situation of "garbage surrounding the city", and urban garbage ma...

AI Technical Summary

Problems solved by technology

[0005] (1) Large area, short use time (generally about ten years), and long land occupation time (cannot be reused within 100 years);

[0006] (2) Odor and poisonous gas generated around the landfill site breed bacteria, viruses, mosquitoes, flies and other sources of disease transmission, as well as carcinogens, seriously endangering the health of ordinary people

[0007] (3) The garbage after landfill causes serious pollution to the soil, groundwater and atmosphere, and its potential hazards are constantly increasing

[0008] (4) Garbage landfills cause a serious waste of resources

[0009] (5) There is a large amount of sewage overflowing every day, which requires manpower and material resources to deal with, and requires long-term maintenance and treatment for 20 years. How much will be paid for the treatment of seepage sewage every year? The environmental impact on the future is difficult to estimate

[0012] (1) First of all, look at its reduction. On the surface, it seems that waste incineration has reduced by 50% to 60%, but in fact the remaining 40% to 50% of the slag still needs to be reprocessed, and it still needs to be landfilled and occupied. A large amount of land, heavy metals, etc. pollute groundwater and soil;

[0013] (2) Let’s look at resource utilization again, we don’t need to talk about direct incineration, because this method has not achieved resource utilization at all, let alone industrialization, but has seriously wasted recyclable resources

[0014] (3) The method of waste incineration to generate electricity. This technology comes from abroad and is mature. However, after being introduced into our country, many places have to go to landfill because of the high operating costs and the government's financial inability to afford it.

The main reason is that the garbage in our country has complex components, low calorific value, and high moisture, which makes the garbage incinerator unable to work normally.

Then if you want to work normally, you must add coal or inject oil, which increases the operating cost and makes the input far greater than the output.

[0015] (4) During the incineration process of garbage, the odor, poisonous gas, dioxin, mercury vapor in the battery, etc. released will seriously pollute the atmosphere again, and it is impossible to deal with such toxic gas, and the operating cost is very expensive. In line with our country's national conditions

[0017] (1) The composting of organic matter takes a long time, usually three weeks to one month, and the accumulation of pollution is serious, and flies and mosquitoes breed, seriously polluting the surrounding environment and bringing great hidden dangers to local sanitation and epidemic prevention

[0018] (2) The degradation of organic matter is not complete, the treatment is not sufficient, and the residue will still cause garbage pollution

[0019] (3) Organic compost products have many impurities and cannot effectively separate harmful substances such as heavy metals. Long-term use of compost products will cause soil surface deposition, damage soil, and endanger crops

[0020] (4) During the composting process, most of the nitrogen nutrients are naturally released, and compounds such as phosphorus and potassium are naturally degraded, so the quality of the fertilizer is low, the majority of farmers are unwilling to pay attention, and the market prospect is slim

[0021] To sum up, my country's current domestic waste treatment technology is basically at a low level, and it is difficult to achieve harmless and resourceful waste treatment, let alone industrialization

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