High-speed composting process and apparatus

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...

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

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