Activated carbon comprehensive utilization co-treatment method

Abstract

The invention relates to the technical field of waste treatment, and provides an activated carbon comprehensive utilization co-treatment method which comprises the following steps: 1, waste earlier stage treatment: dehydrating to reduce the water content to be 10% or below; and drying the high-calorific-value organic waste; 2, pyrolysis of the high-calorific-value organic waste: putting the high-calorific-value organic waste and agricultural and forest waste into a gasification hearth for pyrolysis to generate gas, and enabling the gas to flow into a condensation chamber for condensation to generate combustible gas and oil-water mixed liquid; 3, drying: putting the to-be-regenerated activated carbon and / or the agricultural and forestry wastes into a pyrolyzing furnace at the same time for drying treatment; 4, separating low-boiling-point organic matters in the product in the step 3; 5, high-temperature carbonization: pyrolyzing and carbonizing the product in the step 3 to generate primary carbon; and 6, activating to finally prepare the activated carbon. One part of hot gas in the steps 3, 4 and 5 comes from the step 2, and the other part is natural gas; and the method has the beneficial effects that the combustible gas generated by pyrolysis of the high-calorific-value organic waste is used as a heating source, so that more energy is saved.

Description

technical field [0001] The invention relates to the technical field of waste treatment, in particular to a coordinated treatment method for comprehensive utilization of activated carbon. Background technique [0002] Wastes include agricultural waste, forestry waste, organic waste with high calorific value, etc. Specific agricultural waste such as husk, rice husk, corn cob, straw, etc., forestry waste such as wood chips, branches, etc., organic waste with high calorific value Such as waste tires, paint waste, plastics, resins, etc. In addition to the above-mentioned wastes, the applicant will also produce a special waste in the process of treating waste gas: activated carbon with saturated adsorption. In order to implement the strategic deployment of ecological civilization construction, the "Circular Economy Promotion Law" and "Circular Economy Development Strategy" In accordance with the requirements of the "Recent Action Plan" to speed up the harmless disposal and resourc...

AI Technical Summary

Problems solved by technology

However, the above process is relatively cumbersome, and the most effective, harmless and resourceful treatment method for paint waste is to obtain heat energy through thermochemical treatment

[0005] At present, the above-mentioned wastes are treated separately at home and abroad, but the equipment required for waste treatment is high in requirements, high in cost, large in floor space, and large in energy consumption for equipment operation, and the energy generated during the treatment process cannot be recovered. Utilization, the price of the final product is even lower than the input cost, which hinders the development of this industry. At present, there are no more than 10 enterprises engaged in large-scale waste treatment in my country, so it is necessary to form a set of coordinated treatment methods for comprehensive utilization of activated carbon to achieve Harmless disposal of waste and partial resource treatment

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