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High-efficiency methanogenesis and resource processing system by waste cardboard box and processing method thereof

A treatment method and technology of a treatment system, which is applied in the high-efficiency methane production and resource treatment system of waste cartons and its treatment field, can solve the problems of increasing the difficulty of recycling, the inability to recycle, and the lack of awareness of waste classification and treatment, so as to reduce pollution problems, and the effect of promoting agricultural income

Pending Publication Date: 2019-08-16
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current Chinese express delivery industry, there are not many cartons that can be recycled, and the actual recycling rate of cartons is less than 10%. litter box
At the same time, consumers have insufficient awareness of garbage classification and disposal, which increases the difficulty of recycling
If the carton is mixed with other domestic waste, it cannot be recycled after being polluted

Method used

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  • High-efficiency methanogenesis and resource processing system by waste cardboard box and processing method thereof
  • High-efficiency methanogenesis and resource processing system by waste cardboard box and processing method thereof
  • High-efficiency methanogenesis and resource processing system by waste cardboard box and processing method thereof

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Effect test

Embodiment 1

[0045] A high-efficiency methane production and resource treatment system for waste cartons, such as figure 1 As shown, it includes pretreatment system 1, anaerobic digestion system 2, energy recovery system 3 and biogas residue utilization system 4;

[0046] Pretreatment system 1 includes sorter and crusher, anaerobic digestion system 2 includes anaerobic digester, energy recovery system 3 includes desulfurization device, biogas boiler and internal combustion engine power generation system, desulfurization device can remove hydrogen sulfide contained in biogas, Reduce the corrosion of metal pipes or valves in the subsequent process; the biogas boiler can use anaerobic digestion biogas as fuel to generate heat, and the internal combustion engine power generation system can compress the biogas generated by anaerobic digestion, inject it into the internal combustion engine, and use the heat generated by biogas combustion The flue gas value drives the turbine, which in turn drive...

Embodiment 2

[0049] A high-efficiency methane production and recycling treatment system for waste cartons, the structure of which is shown in Example 1, the difference is that the system also includes a PLC controller and a control system, and an on-line monitor is installed in the anaerobic digestion tank for monitoring The VFAs, chemical oxygen demand, ammonia nitrogen and pH of the anaerobic digester, the control system and the on-line monitor are all connected with the PLC controller;

[0050] The control system includes the conveyor belt for transporting the matrix, the stirring device located in the anaerobic digester and the backup pipeline switch of the anaerobic digester;

[0051] The online monitor adopts the AquAlert water quality online monitoring system, and the model of the PLC controller is 4DI6DOMT.

Embodiment 3

[0053] A method for efficient methane production and recycling of waste cartons, comprising the following steps:

[0054] (1) Sorting and crushing the collected cartons and other domestic waste to improve the efficiency of subsequent anaerobic digestion;

[0055] (2) Send the broken garbage into the anaerobic digestion tank, add the inoculum, complete the hydrolysis, acidification and methanation of the waste paper box here, realize the energy conversion of waste, and the anaerobic digestion process. The technical points are Selecting suitable operating conditions mainly includes: temperature, TS, F / M, C / N, etc. In the present invention, by adjusting the temperature of the anaerobic digestion process to be 35±2°C and TS to be within the range of 10±2%, F / M is 0.5, C / N is 25, and anaerobic digestion is carried out. Under the experimental conditions, the methane yield is relatively high;

[0056] (3) Monitor VFAs, chemical oxygen demand, ammonia nitrogen, and pH indicators thro...

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Abstract

The invention relates to a high-efficiency methanogenesis and resource processing system by waste cardboard box and a processing method thereof, which belong to the technical field of waste resource utilization. The system includes a pretreatment system, an anaerobic digestion system, an energy recovery system and a biogas residue utilization system; The pretreatment system comprises a sorting machine and a crusher, the anaerobic digestion system comprises an anaerobic digestion tank, the energy recovery system comprises a desulfurization device, a biogas boiler and an internal combustion engine power generation system, and the biogas residue utilization system comprises a solar air drying device. The system realizes the methanogenic resource with the maximum potential of the cardboard boxby setting operating conditions such as temperature, TS, F / M, C / N, and the like. At the same time, an index online monitoring and control system is arranged to ensure the smooth operation of the whole anaerobic digestion system. The biogas produced by the anaerobic digestion process is used as a fuel for electricity generation and heating, which can realize the high efficiency and cleanness of the domestic energy, and reduces the environmental pollution of the subsequent biogas residue.

Description

technical field [0001] The invention relates to a waste carton high-efficiency methane production and resource treatment system and a treatment method thereof, belonging to the technical field of waste resource utilization. Background technique [0002] The "2017 Green Packaging Development Status and Trend Report in China's Express Delivery Industry" released by the State Post Bureau shows that in 2016, the national express delivery business volume reached 31.28 billion pieces, of which about 3.7 billion packaging boxes were consumed, and the corrugated paper required for express delivery packaging boxes was consumed. There are as many as 46 million tons of box base paper. However, in the current Chinese express delivery industry, there are not many cartons that can be recycled, and the actual recycling rate of cartons is less than 10%. up the litter box. At the same time, consumers have insufficient awareness of garbage classification and disposal, which increases the di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/38C12M1/36C12M1/107C12M1/00C05F9/04C04B33/132
CPCC04B33/132C05F9/04C12M21/04C12M41/00C12M41/26C12M41/34C12M43/04C12M43/08C12M45/02Y02E50/30Y02P20/10Y02P40/60Y02A40/20
Inventor 牛启桂李敦杰
Owner SHANDONG UNIV