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Vehicle-mounted organic garbage quick decomposition and fertilization system and method

A vehicle-mounted technology for organic waste, applied in the direction of organic fertilizer, organic fertilizer preparation, excretion fertilizer, etc., can solve the problems of complex composition, polluted crops, small scale, etc., and achieve the effect of high system integration

Active Publication Date: 2020-06-26
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Village and town garbage is widely distributed, small in scale, and complex in composition, and the linkage between decentralized and centralized treatment is relatively low, so it usually cannot be effectively utilized as a resource; currently, it is mainly disposed of by simple landfill and open-air incineration
However, landfill treatment will occupy a large amount of land, and the leachate produced by organic waste will cause harm to the soil. The polluted soil will pollute crops and affect people's health
Although the open-air incineration treatment covers a small area and has a good volume reduction effect, it will produce a large amount of waste gas and waste residue during the incineration process, especially a highly toxic dioxin gas, causing secondary pollution.
Conventional garbage decomposition and fertilizer technology in villages and towns has a long composting fermentation cycle, low organic matter content in fertilizer indicators, low effective viable bacteria count, high indicators of fecal coliform bacteria, total arsenic, total chromium, total cadmium, and total mercury; The effect of liquid treatment and odor treatment is poor, and there is secondary pollution

Method used

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  • Vehicle-mounted organic garbage quick decomposition and fertilization system and method
  • Vehicle-mounted organic garbage quick decomposition and fertilization system and method
  • Vehicle-mounted organic garbage quick decomposition and fertilization system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] as attached Figure 1-3 As shown, a vehicle-mounted organic waste rapid decomposition and fertilization system includes a vehicle body 1 and a container casing 2, and the container casing 2 is installed on the vehicle body 1.

[0095] The container housing 2 is provided with a storage unit 3 , a feeding unit 4 , a pretreatment unit 5 , an aerobic fermentation unit 6 , a deodorization unit 7 and a leachate treatment unit 8 .

[0096] The outer wall of the storage unit 3 is provided with a material inlet 31 of the storage unit, and the bottom is connected to the feeding unit 4 through a switchable partition or a valve; the feeding unit 4 is provided with a conveyor belt, and the bottom of the feeding unit 4 is provided with a switchable partition plate or valve.

[0097] The pretreatment unit 5 includes a sorting device 51, a crushing device 52, a humidity regulating device 53, a stirring device 54 and a feeding device 55 which are connected in sequence;

[0098] Sortin...

Embodiment 2

[0151] Use the system and method in Example 1 for garbage disposal as an experimental group, and set up a control group: on the basis of Example 1, replace the composite bacterial liquid inoculated in the aerobic fermentation unit with the Bacillus megaterium bacterial liquid, and the bacteria Liquid concentration is 2.0×10 7 CFU / mL, the inoculation volume is 8‰.

[0152] After the fermentation, the fertilizers obtained by the two groups were tested for various indicators, and the mortality rate of roundworm eggs was calculated according to the number of roundworm eggs before garbage treatment. The results are shown in Table 1.

[0153] Table 1

[0154]

[0155]

[0156] Under the various technical parameters of the present invention, the various indexes of the prepared fertilizer are better, and are better than the index values ​​in the "Biological Organic Fertilizer" (NY884-2012) standard.

Embodiment 3

[0158] Use the system and method in Example 1 to carry out garbage treatment, as an experimental group, and set up a control group: on the basis of Example 1, the processing time in the S5 step is adjusted, and the leachate is in the strengthened anaerobic hydrolysis reactor It stays for 6 hours inside, stays for 10 hours in the sequencing batch microbubble oxygenation device, and stays for 2.5 hours in the photocatalytic device.

[0159] The leachates obtained from the two groups of treatments were tested for various indicators, and the results are shown in Table 2.

[0160] Table 2

[0161] project test group control group COD (mg / L) 50 80 BOD 5 (mg / L)

[0162] It can be seen that under the technical scheme of the present invention, the effluent water quality is stable and reaches the urban greening and vehicle washing standards in "Urban Sewage Recycling Urban Miscellaneous Water Quality" (GB / T 18920-2002); it is good.

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Abstract

The invention discloses a vehicle-mounted organic garbage quick decomposition and fertilization system which comprises a vehicle body and a container shell, and the container shell is installed on thevehicle body; wherein a feeding unit, a pretreatment unit, an aerobic fermentation unit, a deodorization unit and a leachate treatment unit are arranged in the container shell; the integrated automatic control unit is used for controlling and monitoring the feeding unit, the pretreatment unit, the aerobic fermentation unit, the deodorization unit and the leachate treatment unit. The invention also discloses a method for treating organic garbage by using the vehicle-mounted organic garbage quick decomposition and fertilization system. The system is suitable for treatment of scattered garbage,organic garbage is subjected to on-site fertilization and energy utilization, and effective treatment of garbage leachate and odor emission can be realized.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to a vehicle-mounted organic garbage rapid decomposition and fertilization system and method. Background technique [0002] Village and town garbage is widely distributed, small in scale, and complex in composition, and there is relatively little linkage between decentralized and centralized treatment, so it usually cannot be effectively utilized as a resource; currently, it is mainly disposed of through simple landfills and open-air incineration. However, landfill treatment will occupy a large amount of land, and the leachate produced by organic waste will cause harm to the soil. The polluted soil will pollute crops and affect people's health. Although the open-air incineration treatment has a small footprint and a good capacity reduction effect, it will produce a large amount of waste gas and waste residue during the incineration process, especially a highly toxic dioxin...

Claims

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Application Information

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IPC IPC(8): C05F9/02C05F9/04C05F17/914C05F17/70C05F17/993C05F15/00
CPCC05F9/02C05F9/04C05F3/00C05F9/00C05F11/00C05F11/08Y02W30/40Y02A40/20
Inventor 刘建伟鲁晨孙建斌
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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