Efficient pretreatment method for kitchen waste resource utilization
A technology for recycling kitchen waste, which is applied in the field of agricultural recycling, can solve the problems of difficulty in promoting the recycling of kitchen waste, cumbersome process steps and processing conditions, etc., so as to improve the effect of volume reduction and desalination, expand the scope of equipment, and prolong the walking time. effect of time
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0025] An efficient pretreatment method for resource utilization of kitchen waste, comprising the following steps:
[0026] S1: shredding the kitchen waste to be recycled;
[0027] S2: The food waste particles of different particle sizes obtained after being shredded in S1 slowly pass through the multi-layer vibrating screen, in which the screen holes of each layer are different in diameter, and the screen hole diameters are from large to small from top to bottom set up;
[0028] S3: Collect food waste particles in different particle size ranges on different screen layers, and process the food waste particles in the corresponding particle size ranges in the following manner.
[0029] a. Combine the food waste particles that meet the composting particle size requirements and send them to the composting place;
[0030] b. Combining food waste particles whose particle size is smaller than the composting particle size requirement, as powdery waste;
[0031] c. After merging the...
Embodiment 2
[0039] In order to investigate the effect of different inclination angles of vibrating screens on volume reduction and desalination effects, only the height of the inclination angle was changed in this embodiment, and the rest were processed according to the method disclosed in embodiment 1. The vertical inclination mentioned here refers to the angle between the mesh screen and the vertical line. The results are shown in Table 1;
[0040] Table 1:
[0041]
[0042] First of all, it can be seen that with the increase of the inclination angle, the degree of further screening increases, that is to say, when there is no inclination angle or the inclination angle is too small, the food waste particles have not completely reached the end of the screening, so adjusting the inclination angle can promote Food waste particles are better sorted. However, as the inclination angle continues to decrease, its passing speed is faster and the screening effect is getting worse, so in the p...
Embodiment 3
[0045] Different food wastes are tested in the preferred 80° mode in Example 2. After calculation, the volume reduction of food waste with a water content of about 90% can reach about 68.5% on average through the vibrating screening machine, that is, 1 ton of food waste can be separated to obtain 315 kg of solids and 685 kg of liquids.
[0046] Taking one of the processes as an example, combined with figure 1 can be seen as figure 1As shown in the figure a in the middle, the water content of the food waste before use is relatively high. According to the measurement, the water content of the food waste is about 95%, the pH value is 4.38, and the EC value is 15.58ms / cm. The food waste particles that can be directly used for composting obtained after the treatment disclosed by the present invention are as follows: figure 1 As shown in the picture in b, it has been measured that its water content is about 70%, its pH value is 4.49, and its EC value is 2.83ms / cm.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| water content | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More