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Method and device for cooperative treatment of sludge and livestock and poultry manure

A technology of co-processing, livestock and poultry manure, applied in water/sludge/sewage treatment, sludge treatment, biological sludge treatment, etc., can solve the problems of low quality of biochar and difficult dehydration, and achieve the improvement of organic matter content, reduce The effect of dehydration cost, good economic benefits and environmental benefits

Pending Publication Date: 2021-05-25
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of difficult dehydration and low quality of biochar produced by pyrolysis in the existing separate treatment process of sludge and livestock manure, and to provide a method that can improve the dehydration efficiency of sludge and livestock manure and Method and device for synergistic treatment of sludge and livestock and poultry manure to improve the quality of biochar obtained by pyrolysis

Method used

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  • Method and device for cooperative treatment of sludge and livestock and poultry manure
  • Method and device for cooperative treatment of sludge and livestock and poultry manure

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Embodiment

[0066] Such as figure 1 As shown, the device for the co-processing of sludge and livestock and poultry manure used in the embodiment includes sludge storage bin 1, 1# conveying device 2, 1# mixing device 3, 2# conveying device 4, conditioning device 5, 3# conveying device 6, mechanical filter press device 7, 4# conveying device 8, 2# mixing device 9, 5# conveying device 10, pyrolysis device 11, 7# conveying device 12, compost drying device 13, 6# conveying Device 14, 8# conveying device 15, fermentation device 16, 10# conveying device 17, combustion device 18, 9# conveying device 19, cooling device 20, 2# fan 21, 11# conveying device 22, product storage bin 23, 12 #Conveying device 24, liquid fertilizer storage bin 25, heat exchange device 26, purification device 27, 1# blower fan 28 and chimney 29, described pyrolysis device 11 comprises the pyrolysis carbonization section and the pyrolysis activation section that communicate with each other.

[0067] The outlet of the sludg...

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Abstract

The invention belongs to the technical field of harmless treatment of sludge and livestock and poultry manure, and relates to a method and a device for cooperative treatment of sludge and livestock and poultry manure. The method for cooperative treatment of sludge and livestock and poultry manure comprises the following steps of: uniformly mixing sludge and biogas residues, adding high-temperature red-hot biochar for thermal conditioning, performing mechanical filter-pressing dehydration, mixing a filter-pressing solid phase with livestock and poultry manure subjected to aerobic composting and self-heating drying, sequentially performing pyrolysis carbonization and pyrolysis activation, using one part of the high-temperature red-hot biochar generated by pyrolysis activation for thermal conditioning, and cooling the other part of the high-temperature red-hot biochar to obtain high-quality biochar. According to the method and the device provided by the invention, the dehydration difficulty of the sludge and the livestock and poultry manure can be improved, resources are fully utilized, and the quality of the biochar obtained by pyrolysis is relatively high.

Description

technical field [0001] The invention belongs to the technical field of harmless treatment of sludge and livestock and poultry manure, and in particular relates to a method and device for synergistic treatment of sludge and livestock and poultry manure. Background technique [0002] In the field of resource utilization of solid waste in small and medium-sized cities and towns, reduction and harmlessness have always been important directions, but how to achieve efficient and rapid collaborative processing and high-value utilization of products has become the main problem faced by small and medium-sized cities and towns. Organic solid waste such as urban sewage plant sludge and livestock and poultry manure is considered to be the most potential and inexhaustible "urban mineral deposit". The amount of sludge produced in small and medium-sized towns is small, and the nutrients for composting are insufficient, while the investment for incineration is large, so it is not suitable f...

Claims

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Application Information

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IPC IPC(8): C02F11/10C02F11/02C02F11/12C02F11/122C05F7/00C05F17/00C02F3/28F23G7/06
CPCC02F3/28C02F11/02C02F11/10C02F11/12C02F11/122C05F7/00C05F17/00F23G7/06C05F9/04Y02W10/40Y02W30/40Y02A40/20
Inventor 余广炜汪印朱永官
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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