High-speed composting process and apparatus

A composting method, high-speed technology, applied in fertilization equipment, organic fertilizer, organic fertilizer preparation, etc., can solve the problems of high production price, no economical and effective mass production process, time and degradation degree limitations, etc., to achieve improved fertilizer retention Effect

Active Publication Date: 2009-08-19
北京绿创生态科技有限公司
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  • 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

Method used

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  • 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

[0066] The sludge from a brewery in Guangdong Province contained 2.4% N2.4% (by dry weight), P 2 o 5 2.1% (by 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, water content 85%, heavy metal content is much lower than Agricultural waste control standards for cities and towns. This kind of sludge can be used as compost raw material. However, due to the foul smell, high viscosity, and high water content of sludge, it is difficult to directly treat it with traditional composting without drying. However, its cellulose content is very low, making it impossible to produce high-quality organic compost.

specific Embodiment approach

[0067] If the high-speed activated composting method is used, the product quality can be improved and the production operation can be easily carried out. Its specific implementation is as follows:

[0068] Mix sludge and straw in a ratio of 1:1. Because these two kinds of raw materials are all natural products, no chemicals are added, so this kind of mixed feed can produce compost and compound fertilizer of organic food crops with higher value. Important physical and chemical indicators such as BOD can be analyzed before composting 5 , COD, fertilizer, heat content, humidity, etc. and calculate the BOD 5 , COD relationship so that the COD analysis results can be checked during operation, the residence time of the high-speed stable kettle can be controlled, and the remaining content of easily degradable organic matter can be estimated after treatment.

[0069] First, the straw and bentonite equivalent to 1% (weight) of the straw are added into a cutting machine and cut to a...

Embodiment 2

[0074] A city is looking for harmless, reduction and resourceful methods of waste disposal to achieve sustainable development goals and have the highest economic benefits, so as to simultaneously treat its urban domestic 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 considering its future social cost, it is not the best choice.

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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 high-speed composting production method and device for organic waste. The invention can convert organic waste into high-quality compost within about one hour. At the same time, this technology can greatly improve the water absorption, water holding capacity, nitrogen, phosphorus, potassium (N, P, K) and the adsorption, air permeability and heat insulation of trace elements required by plants, and can completely kill bacteria. and parasites, and can decompose toxic organic compounds. It can stabilize or remove excess heavy metal concentration as needed. Background technique [0002] There are many benefits of applying compost to the soil of crops or flowers and trees, among which the important functions are as follows: [0003] 1. Fertilizer preservation and long-term fertilizer supply: The chelation effect of organic matter in compost can enhance soil fertility, so the fertilizer is not easy to lose. This effect can also ...

Claims

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Application Information

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