Zero-emission treatment method for garbage odor and sludge carbonization odor
A treatment method and zero-emission technology, applied in chemical instruments and methods, separation methods, pyrolysis treatment of sludge, etc., can solve problems such as excessive discharge, secondary pollution, and ineffective treatment of pollutants
Inactive Publication Date: 2017-02-15
重庆冠虹环保科技有限公司
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Problems solved by technology
[0013] The disadvantages are: ①The incineration tail gas contains a large amount of particulate matter, sulfur oxides SOx, nitrogen oxides NOx, heavy metals, dioxins and other "odor" pollutants that cannot be effectively treated; ②Because there is no sorting process, completely mixed incineration , the residue contains a large amount of heavy metals and cannot be disposed of harmlessly, and there is a problem of secondary pollution
Studies have shown that the utilization rate of the calorific value of urban waste is only 15%-20%, and a considerable part of the valuable resources is discharged as waste gas during incineration, and the emission of dioxins has been exceeding the standard, which brings more pollution to the environment. Negative impact
[0019] In view of the source treatment of garbage odor in various countries in the world, there are one or another deficiency and application limitations. The present invention provides a treatment method for zero emission of odor during the carbonization process of domestic garbage mixed sludge, so as to realize the treatment of domestic garbage. Harmless and zero discharge of "odor" during processing
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[0038] The specific implementation manner and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0039] Such as figure 1 As shown, a zero-discharge treatment method for garbage and sludge carbonization odor, including the following six processes;
[0040]The sludge is mixed with the domestic garbage undersize crushed to within 5mm, and after granulation, it is heated and carbonized under oxygen barrier, and the solid matter is carbonized into biomass combustible charcoal. During the carbonization process of oxygen-insulated heating, the mixture is rich in plant fiber, starch, sugar, various organic acid esters, flocculant esters and other substances, forming a large amount of dust and tar in the oxygen-insulated high-temperature hot air environment, except for the plant fiber itself C, H and O have part of the redox heat release, and starch, sugar, acid, fat, etc. have been fermented before and...
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The invention discloses a zero-emission treatment method for garbage odor and sludge carbonization odor. The method comprises a dry deacidification and decoking procedure, a bag dedusting procedure, a forced condensation procedure, a self-cleaning circulating washing and biological bacterium phagocytizing and filtering procedure, an ozone and ultraviolet photolysis procedure and an activated carbon adsorption procedure for combination, six-level odor removal is realized, and finally, emitted gas reaches the national standards. The method has the remarkable effects that the dry deacidification and decoking technology is used creatively, the traditional technologies adopting spray deacidification, decoking and dedusting which produce a large amount of wastewater and waste resources are abandoned, and odor is removed further by aid of deodorizing technologies such as mature cyclone and bag dedusting technologies, a bio-filter technology, an ultraviolet catalytic oxidation technology, activated carbon adsorption and the like, and zero emission in the whole process is realized.
Description
technical field [0001] The invention relates to the technical field of garbage "odor" treatment, in particular to a zero-emission treatment method for garbage and sludge carbonization and odor. Background technique [0002] With the rapid development of the global economy and industrialization, the scale of cities continues to expand, and the total amount of municipal solid waste is increasing day by day. In the process of industrialized disposal of municipal solid waste, in order to achieve reduction and complete disposal of waste, incineration and There are two ways of landfilling. It has brought hidden dangers that cannot be eradicated: the problem of odor pollution. [0003] Due to people's increasing awareness of air pollution and environmental pollution, there is an increasing demand for governance of the odor pollution generated by garbage. At present, the most common treatment methods for garbage as the source of odor in various countries in the world are landfill a...
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IPC IPC(8): C02F11/10B01D53/84B01D50/00
CPCB01D53/007B01D53/02B01D53/84C02F11/10Y02A50/20
Inventor 张建行张盛乔姜鸿帅肖显军
Owner 重庆冠虹环保科技有限公司