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Aerobic fermentation-based double-helix fermentation device suitable for large-scale processing of blue-green algae mud

An aerobic fermentation and fermentation device technology, applied in the environmental field, can solve the problems of large-scale disposal difficulty, low degree of automation, and high disposal cost, and achieve the effects of strong production continuity, high degree of automation, and fast processing

Inactive Publication Date: 2016-08-17
ANHUI JINNONG HUIMIN BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are certain defects and deficiencies in anaerobic fermentation. For example, anaerobic fermentation requires a special air-tight and heat-retaining fermenter, and the fermentation process has requirements for temperature, etc.
Aerobic fermentation is a relatively feasible disposal method, but the traditional aerobic composting method has a low degree of automation, the fermentation site is dirty, messy and smelly, the disposal cost is high, and large-scale disposal is difficult

Method used

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  • Aerobic fermentation-based double-helix fermentation device suitable for large-scale processing of blue-green algae mud
  • Aerobic fermentation-based double-helix fermentation device suitable for large-scale processing of blue-green algae mud
  • Aerobic fermentation-based double-helix fermentation device suitable for large-scale processing of blue-green algae mud

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: 2 cubic Chaohu cyanobacteria mud treatment

[0033] 1. Put 1 cubic meter of Chaohu cyanobacteria algae mud into the mixing tank through the elevator and screw conveyor, add 725 kg of rice straw crushed to 2-4 mm, 42.5 kg of superphosphate, and 5 kg of inoculant, and add water to adjust the moisture content to 55- 60%, the material enters the double-helix fermentation system after stirring.

[0034] 2. Repeat step 1 again, and put 2 tons of algae mud and mixed materials into the double-helix fermentation system.

[0035] 3. Open the observation port of the fermentation system, pass 35-40°C circulating hot water into the insulation interlayer, open the movable cover after 2 days, and stir 2-3 times during fermentation, each stirring time is 15-60 minutes.

[0036]4. After 7 days of fermentation, the material is conveyed to the drying system by a screw, and heat-conducting oil is introduced into the interlayer of the drying system, heated by a heating rod, and ...

Embodiment 2

[0039] Example 2: Treatment of 5 cubic meters of Chaohu cyanobacteria mud

[0040] 1. Put 1 cubic meter of Chaohu cyanobacteria algae mud into the mixing tank through the elevator and screw conveyor, add 725 kg of rice straw crushed to 2-4 mm, 42.5 kg of superphosphate, and 5 kg of inoculant, and add water to adjust the moisture content to 55- 60%, the material enters the double-helix fermentation system after stirring.

[0041] 2. Repeat step 1 four times, put 5 tons of algae mud and mixed materials into the double-helix fermentation system.

[0042] 3. Open the observation port of the fermentation system, pass 35-40°C circulating hot water into the insulation interlayer, open the movable cover after 2 days, and stir 2-3 times during fermentation, each stirring time is 15-60 minutes.

[0043] 4. After 7 days of fermentation, the material is conveyed to the drying system by a screw, and heat-conducting oil is introduced into the interlayer of the drying system, heated by a he...

Embodiment 3

[0046] Example 3: Treatment of 8 cubic Chaohu cyanobacteria mud

[0047] 1. Put 1 cubic meter of Chaohu cyanobacteria algae mud into the mixing tank through the elevator and screw conveyor, add 725 kg of rice straw crushed to 2-4 mm, 42.5 kg of superphosphate, and 5 kg of inoculant, and add water to adjust the moisture content to 55- 60%, the material enters the double-helix fermentation system after stirring.

[0048] 2. Repeat step 1 seven times, put 8 tons of algae mud and mixed materials into the double-helix fermentation system.

[0049] 3. Open the observation port of the fermentation system, pass 35-40°C circulating hot water into the insulation interlayer, open the movable cover after 2 days, and stir 2-3 times during fermentation, each stirring time is 15-60 minutes.

[0050] 4. After 7 days of fermentation, the material is conveyed to the drying system by a screw, and heat-conducting oil is introduced into the interlayer of the drying system, heated by a heating rod...

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Abstract

The invention discloses an aerobic fermentation-based double-helix fermentation device suitable for large-scale processing of blue-green algae mud. The aerobic fermentation-based double-helix fermentation device comprises a screw conveyor, a material stirring tank and a double-helix main fermentation system, and can achieve the automatic conveying, stirring, temperature control and drying of materials. Tthe processing flow is as follows: transferring algae mud in an algae storage tank to the screw conveyor through a hoister; conveying to the stirring tank through the screw conveyor; adding straws, EM agents and other auxiliary materials; adjusting a CN ratio to be 15-35 and a moisture content to be 50-65%; stirring and mixing; feeding to the double-helix main fermentation system; setting the temperature at 35-40 DEG C; feeding to a drying system through the screw conveyor after fermentation for seven days; granulating or stacking directly after drying and cooling. An algae mud organic fertilizer obtained by using such a device contains total nutrient being 5% or higher and organic matters being 50% or higher; the device is high in degree of automation and easy to operate, can realize continuous disposal, is convenient for replication and expansion, and reduced in disposal costs and pollution.

Description

technical field [0001] The invention relates to the field of environmental technology, and specifically belongs to a double-helix fermentation device suitable for large-scale treatment of cyanobacteria and algae mud based on aerobic fermentation. Background technique [0002] Large-scale cyanobacterial blooms reduce the efficiency of water resource utilization, limit human water needs for drinking, industry, agriculture, landscape, entertainment, etc., destroy the ecology, and cause huge economic losses. [0003] In recent years, physical, chemical and biological methods have been adopted to remove blooms of cyanobacteria in lakes, and the effect is obvious. However, when used in a large area, it is often difficult to achieve the expected effect due to the influence of environmental conditions. By establishing an algae-water separation station, in areas where a large number of algae blooms accumulate, mechanical harvesting methods can be used to remove a large number of alga...

Claims

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Application Information

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IPC IPC(8): C05F17/02C05G1/00C05F17/00
CPCC05B1/02C05F17/00C05F17/971C05F17/989C05F11/00C05F11/08Y02W30/40
Inventor 张六六李国
Owner ANHUI JINNONG HUIMIN BIOTECH CO LTD