A vehicle-mounted organic waste rapid decomposition and fertilizer system and method

An organic waste, vehicle-mounted technology, used in the preparation of organic fertilizers, organic fertilizers, excretion of fertilizers, etc., can solve the problems of soil damage, low effective viable bacteria, long compost fermentation cycle, etc., to improve soil fertilizer efficiency and organic matter content. , The effect of improving organic matter content and significant economic benefits

Active Publication Date: 2022-05-27
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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  • A vehicle-mounted organic waste rapid decomposition and fertilizer system and method
  • A vehicle-mounted organic waste rapid decomposition and fertilizer system and method
  • A vehicle-mounted organic waste rapid decomposition and fertilizer 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 decomposing and fertilizing system includes a vehicle body 1 and a container casing 2 , and the container casing 2 is mounted on the vehicle body 1 .

[0095] A material storage unit 3 , a material feeding unit 4 , a pretreatment unit 5 , an aerobic fermentation unit 6 , a deodorization unit 7 and a leachate treatment unit 8 are arranged in the container shell 2 .

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

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

[0098] The sorting device 51 includes a sorting machine 511 and a recycled material cabinet 512; the sorting machine 511...

Embodiment 2

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

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

[0153] Table 1

[0154]

[0155]

[0156] Under various technical parameters of the present invention, various indexes of the prepared fertilizer are better than those in the "Bio-organic Fertilizer" (NY884-2012) standard.

Embodiment 3

[0158] Use the system and method in Example 1 for garbage treatment, as the experimental group, and set up a control group: on the basis of Example 1, the treatment time in step S5 is adjusted, and the leachate is in the enhanced anaerobic hydrolysis reactor. Stay for 6h, stay in the sequencing batch microbubble oxygenation device for 10h, and stay in the photocatalytic device for 2.5h.

[0159] The leachate obtained from the two groups of treatments was subjected to the determination of 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 water quality of the effluent stably reaches the urban greening and vehicle flushing standards in "Urban Sewage Recycling and Utilization of Urban Miscellaneous Water Quality" (GB / T 18920-2002); and the treatment effect of the leachate co...

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Abstract

The invention discloses a vehicle-mounted organic waste rapid decomposition and fertilization system, which comprises a car body and a container shell, the container shell is installed on the car body; a feeding unit and a pretreatment unit are arranged in the container shell , aerobic fermentation unit, deodorization unit and leachate treatment unit; also includes an integrated automatic control unit, the integrated automatic control unit is used to control and monitor the feeding unit, pretreatment unit, aerobic fermentation unit, deodorization unit and leachate treatment unit. It also discloses a method for treating organic waste by using the vehicle-mounted organic waste rapid decomposition and fertilization system. The invention is suitable for the treatment of dispersed garbage, can fertilize the organic garbage in situ and utilize it as energy, and can realize effective treatment of garbage leachate and odor emission.

Description

technical field [0001] The invention relates to the technical field of garbage disposal, and more particularly to a vehicle-mounted system and method for rapid decomposition and fertilization of organic garbage. Background technique [0002] Waste in villages and towns is widely distributed, small in scale, complex in composition, and has a relatively high linkage between decentralized and centralized treatment, and usually cannot be effectively utilized as resources. Currently, it is mainly treated by simple landfill and open incineration. However, landfill treatment will occupy a lot of land, the leachate produced by organic waste will harm the soil, and the contaminated soil will contaminate crops and affect people's health. Although open-air incineration treatment has a small footprint and good volume reduction effect, a large amount of waste gas and waste residue will be generated during the incineration process, especially a highly toxic dioxin gas will be produced, ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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