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Fast organic waste recycling hot enzyme aerobic treatment technology

An organic waste, aerobic treatment technology, applied in the direction of organic fertilizers, fertilizer mixtures, fertilizer forms, etc., can solve the problems of odor gas generation, complicated operation, shortening fermentation time, etc., to achieve stable quality, efficient enzymatic hydrolysis and fermentation, adaptable wide range of effects

Active Publication Date: 2013-09-18
BIOMAX ECOLOGICAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The secondary solid-state fermentation greatly improves the fermentation efficiency, shortens the fermentation time, and the quality of the fermented product is stable, but the operation is relatively cumbersome
[0003] The production time of organic fertilizer by the existing organic waste treatment process can basically be controlled within 48-72 hours, and the production process is often accompanied by waste water and odorous gas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Select chicken manure from chicken farms and garden waste (flower branches, leaves, plant stems, etc.) at a ratio of 7.5:2.5, and put them into the heat-enzyme reactor for rapid resource recovery of organic waste, and add 0.1% heat-resistant enzyme and 0.05% thermophilic agent, the temperature of the material is 80°C, the stirring speed is controlled at 5r / min, the first fermentation, decomposing, and exhaust, the exhaust volume per ton of material per hour is 150m 3 , the exhaust time is 18 hours; then the parameters are automatically changed to control the material temperature at 90°C, the stirring blade speed of the thermal enzyme reactor is 10r / min, and the second exhaust volume is 700m per ton of material per hour 3 , the exhaust time is 6 hours; after 24 hours of fermentation, the material is discharged, which is the organic fertilizer product. The cooled organic fertilizer is sampled and sent for inspection and self-inspection. 2011) and national standards for bi...

Embodiment 2

[0032] Sludge and sawdust from the sewage treatment plant are added to the thermal enzyme treatment reactor for rapid resource utilization of organic waste according to the ratio of 7:3, and 0.1% of heat-resistant enzyme and 0.1% of thermophilic bacteria compound decomposing agent are added. The parameters of the first 18 hours The material temperature is kept constant at 80°C, the stirring speed is controlled at 3r / min, the initial material humidity is about 65%, and the exhaust volume is 100m 3 / h; 16 hours; then use the setting program to automatically fine-tune the parameters until the material temperature is constant at 90°C, the stirring speed is controlled at 8rpm, and the induced air exhaust volume is 750m 3 / h. After 24 hours of fermentation, the organic fertilizer produced has been tested for routine indicators, heavy metals and microbial indicators (see Table 3). :

[0033] Table 3 The detection value of organic fertilizer indicators after 24h fermentation of sewa...

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Abstract

The invention discloses a fast organic waste recycling hot enzyme aerobic treatment technology. The fast organic waste recycling hot enzyme aerobic treatment technology comprises the steps of: according to the proportion of (6-8):(2-4), respectively placing organic wastes and crop straw or wood chips into a hot enzyme reactor for stirring for 5-10min, respectively adding 0.05%-0.2% of heat-resistant enzyme and 0.05%-0.3% of thermophilic bacteria according to the weight percentage of the organic wastes and crop straw or wood chips, carrying out primary enzymatic fermentation, thorough decomposition and exhausting through the reactor, controlling the temperature of materials at 70-80 DEG C, controlling the humidity of the materials in the reactor to be 60%-70%, wherein the first-time exhausting amount is 100-500m<3> of per tonnage per hour, the exhausting time is 16-18 hours, and the rotating speed of stirring blade of the reactor is 1-20r / min; 16-18 hours later, finely adjusting the parameters of the hot enzyme reactor automatically, carrying out secondary enzymatic fermentation, thorough decomposition and exhausting, controlling the temperature of the materials to be 80-95 DEG C, the rotating speed of the stirring blade of the reactor to be 1-20r / min for 6-8 hours, wherein the second-time exhausting amount is 150-750m<3> of per tonnage per hour, and the exhausting time lasts for 6-8 hours; and then cooling and sieving, or further pelletizing or embedding to obtain the finished product.

Description

technical field [0001] The invention relates to a thermal enzymatic aerobic treatment process for rapid recycling of organic waste, which belongs to the technical field of environmental protection and comprehensive utilization of renewable resources, in particular to a processing technology for organic waste, in particular to a thermal enzymatic treatment process for rapid recycling of organic waste Enzymatic aerobic treatment process. Background technique [0002] The most common method of organic waste treatment is still traditional composting. In addition, mechanically assisted composting and secondary solid-state fermentation have also been greatly developed in recent years. Although the cost of traditional composting fermentation is low, it takes up a lot of space, requires a lot of manpower, labor intensity is high, the fermentation efficiency is low, and the time is long. It usually takes 3-6 months. There is secondary pollution during the fermentation process, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F11/08C05G5/00
Inventor 刘立鹤杜国扬张炳如
Owner BIOMAX ECOLOGICAL ENG
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