High-speed composting process and apparatus

A composting, high-speed technology, applied in fertilization devices, organic fertilizers, preparation of organic fertilizers, etc., can solve the problems of high production price, waste complexity, time and degradation degree limitations, and achieve the effect of improving fertilizer preservation.

Active Publication Date: 2013-07-31
北京绿创生态科技有限公司
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the above-mentioned reaction process is carried out purely as a biological reaction, there are limitations in time and degree of degradation
Although purely using enzymes as catalysts in a sterile state to quickly stabilize organic matter has been developed, due to the complexity and diversity of enzymes (more than 2,000 enzymes have been found so far), each enzyme can only treat organic matter. A specific molecule works, and its high production price, or there is no cost-effective mass production process, coupled with the complexity of waste, so general enzyme composting still has a lot of research and development work to do before practical application

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-speed composting process and apparatus
  • High-speed composting process and apparatus
  • High-speed composting process and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The sludge of a brewery in Guangdong Province was tested to contain 2.4% N (based on dry weight), P 2 O 5 2.1% (based on dry weight), K 2 O 0.6% (by dry weight), organic matter (C) 39.0% (by dry weight), cellulose 18% (by dry weight), heat content 3000Kcal / Kg, moisture content 85%, heavy metal content is much lower Urban waste agricultural control standards. This sludge can be used as a compost material. However, due to the foul odor, high viscosity, and high water content of the sludge, it is difficult to directly use the traditional composting method without drying. The cellulose content is so low that high-quality organic compost cannot be produced.

specific Embodiment approach

[0068] If the high-speed activation composting method is used, the product quality can be improved and the production operation can be easily carried out. The specific implementation is as follows:

[0069] The sludge and straw are mixed at a ratio of 1:1. Because these two kinds of raw materials are all natural products and no chemicals are added, this kind of mixed feed can produce compost and compound fertilizer for higher-value organic food crops. Important physical and chemical indicators can be analyzed before compost manufacturing, such as BOD 5 , COD, fertilizer, heat content, humidity, etc. And calculate BOD 5 The relationship between COD can be used to check COD analysis results during operation, control the residence time of the high-speed stable kettle, and predict the remaining content of easily degradable organics after treatment.

[0070] First, the straw and the bentonite equivalent to 1% (weight) of the straw are added to the cutting machine and cut to a particle...

Embodiment 2

[0075] A city is looking for ways to harmless, reduce and recycle waste in order to achieve the goal of sustainable development and have the highest economic benefits to simultaneously treat its municipal solid waste and sewage treatment plant sludge. After comparing the existing sanitary landfill method, incineration power generation method, and traditional composting method, it is found that there are secondary pollution problems, and if the future social cost is considered, it is not the best choice.

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 relates to a high rate composting method and equipment thereof. The method comprises the following steps: sending organic solid waste to separation equipment for separation and recycling; making the waste into grains and sending the grains into a materialized pretreatment groove; adding a wetting agent, a bond dissociation agent and water beyond saturation state of materials; after stirring, sending the mixture into a high speed stable kettle for heating and pressurizing; maintaining the material in the reaction kettle at liquid and solid state; adding an oxidizer and a heavy metal remover; after reducing pressure to reduce pressure in a vessel, sending the mixture to a high speed activation kettle; adding a softening agent and an activation agent for an activation reaction under the condition of increasing temperature and pressure; and carrying out steam instant explosion operation by leading material to a product finery and controlling humidity, granularity and nutriment in a fertilizer within a range as required. By the method, the organic waste can be transferred to high quality compost in an hour and hydroscopic property, moisture retaining quality, adsorptivityof N, P, K and trace elements needed by plants, ventilation property, thermal insulation, flood-resistance and desertification resistance can be improved greatly, bacterium and parasites can be killed completely, poisonous organic compound can be decomposed and excess heavy metal in material can be stabilized or removed.

Description

Technical field [0001] The invention relates to a method and device for high-speed composting of organic waste. The invention can convert organic waste into high-quality compost in about one hour. This process technology can also greatly improve the water absorption, water retention, nitrogen, phosphorus and potassium (N, P, K) of the compost product and the adsorption, ventilation and heat insulation of the trace elements required by plants, and can completely kill bacteria And parasites, and can decompose toxic organic compounds. If necessary, it can stabilize or remove the excessive heavy metal concentration. Background technique [0002] There are many benefits of compost applied to the soil of crops or flowers and trees. The important functions are as follows: [0003] 1. Fertilizer retention and long-term fertilizer supply: The chelating effect of organic matter in compost can enhance the soil fertility retention capacity, so the fertilizer is not easy to lose. This effec...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 吕正雄
Owner 北京绿创生态科技有限公司
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