Urban organic waste pyrolytic biochar, soil conditioner and use method of soil conditioner

A technology of organic waste and biochar, applied in the directions of organic fertilizers, soil conditioning materials, chemical instruments and methods, etc., to achieve the effect of improving the utilization rate of fertilizer nutrients, improving soil properties, and improving soil agglomeration

Inactive Publication Date: 2015-11-18
CHONGQING UNIV
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a kind of urban organic waste pyrolysis biochar, so as to realize that paper, rubber and plastic, fabric, bamboo and wood and kitchen waste can be used Urban organic waste pyrolysis biochar is pre

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. A kind of urban organic waste pyrolysis biochar:

[0024] Select five categories of urban organic waste: paper, rubber and plastic, fabric, bamboo and wood, and kitchen waste. Each component corresponds to 5g, 10g, 5g, 5g, and 25g. The glass, ceramics, stones, metal and lime soil shall be cut finely, dried at 105°C and pulverized with a pulverizer, and the particle size shall be controlled between 0.5cm and 1cm. Mix the pulverized components evenly, and place them in a pyrolysis furnace for pyrolysis; during the pyrolysis process, first pass nitrogen gas for 10 minutes to exhaust the oxygen in the pyrolysis furnace, and then control the temperature rise rate to 10°C / min to raise the temperature to 800°C After that, pyrolysis was carried out for 1 hour, and the nitrogen flow rate during the pyrolysis process was 300mL / min; after the pyrolysis, the pyrolysis furnace was lowered to room temperature, and the solid product was taken out, ground and passed through a 60-mes...

Embodiment 2

[0033] 1. A kind of urban organic waste pyrolysis biochar:

[0034] Select five major categories of urban organic waste: paper, rubber and plastic, fabric, bamboo and wood, and kitchen waste. Each component corresponds to 7.5g, 12.5g, 2.5g, 2.5g, and 25g. Mix well, remove the glass, ceramics, stones, metal and dust, then cut finely, dry at 105°C and pulverize with a pulverizer, the particle size is controlled between 0.5cm~1cm. Mix the pulverized components evenly, and place them in a pyrolysis furnace for pyrolysis; during the pyrolysis process, first pass nitrogen gas for 30 minutes to exhaust the oxygen in the pyrolysis furnace, and then control the temperature rise rate to 10°C / min to 500°C After that, pyrolysis was carried out for 2 hours, and the nitrogen flow rate during the pyrolysis process was 200mL / min; after the pyrolysis, the pyrolysis furnace was lowered to room temperature, and the solid product was taken out, ground and passed through a 60-mesh sieve to obtain ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses urban organic waste pyrolytic biochar, a soil conditioner and a use method of the soil conditioner. Paper waste, rubber and plastic waste, fabric waste, bamboo waste and kitchen waste of urban organic waste are selected as raw materials, the raw materials including, in parts by weight, 1-1.5 parts of paper waste, 2-2.5 parts of rubber and plastic waste, 0.5-1 part of fabric waste, 0.5-1 part of bamboo waste and 5-5.5 parts of kitchen waste are uniformly mixed, inorganic components are removed, dried and smashed and subjected to high-temperature pyrolysis, and the urban organic waste pyrolytic biochar is obtained. According to the soil conditioner, the urban organic waste pyrolytic biochar is taken as an effective ingredient and added to the soil during use in the mass ratio being 2%-4%. The urban organic waste pyrolytic biochar has the characteristics of rich sources of the raw materials, low cost and simple process; the urban and rural environments can be improved, and reduction, reutilization and harmless utilization of urban organic waste are realized; besides, nitrogen cycle of soil can be accelerated, and a theoretical direction is provided for improvement of the agricultural soil environment.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment, and in particular relates to pyrolysis biochar of urban organic waste, a soil improver and a use method thereof. Background technique [0002] At present, the harmless treatment methods of garbage widely used at home and abroad mainly include incineration, landfill and composting. However, traditional treatment methods have problems such as large land occupation, large amount of methane gas generation, groundwater and soil pollution, and cannot reduce carbon emissions. [0003] There are serious environmental problems in my country's agricultural soil. On the one hand, soil nutrients are seriously lost, causing serious pollution. On the other hand, farmland emits a lot of greenhouse gases. Urban organic waste, as an important biomass resource, is a possible way for soil improvement. Chen Jinhai and others have developed a method of mixing and composting Spartina alterniflora and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C01B31/02C09K17/02C09K101/00C09K109/00
Inventor 刘国涛张尚毅高雪刘梅谢梦佩
Owner CHONGQING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap