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Preparation method of artificial urban solid waste with quantitatively controllable properties under hypergravity conditions
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A quantitative control, hypergravity technology, applied in solid waste management, sustainable waste treatment, climate sustainability, etc., can solve problems such as poor repeatability, differences in organic gluten phase content, and neglect of peat degradability. Applicability, good reproducibility
Active Publication Date: 2022-05-17
ZHEJIANG UNIV
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However, due to the neglect of the degradability of peat and the difference in the content of organic matter in different peats, there is no quantitative standard for the preparation of model solid waste, and the repeatability of different batches of experiments is poor.
[0005] Therefore, the existing material preparation methods are difficult to meet the relevant test requirements
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Embodiment 1
[0039] Example 1: Preparation of artificial urban solid waste based on fresh solid waste from Qizi Mountain in Suzhou
[0040] Such as figure 1 as shown,
[0041] 1. Determine the ratio of each raw material and weigh:
[0042] (1) The analysis results of Qizishan solid waste components are shown in Table 1. The content of organic tendon phase in kitchen waste and paper, wood, textile, leather and other fibers is about 50%-70%, and the content of organic tendon phase in plastic is 100%, and the rest of the materials do not contain organic tendon phase, so the content of organic tendon phase in Qizishan fresh solid waste is about 40%-50%, which can be considered to be about 45%.
[0043] Table 1 Physical composition of real solid waste in Qizishan, Suzhou
[0044]
[0045] (2) kaolin, quartz sand and peat are dried, and the content of the organic tendon phase of peat A is 93.3%;
[0046] (3) The results of calculating the preparation ratio of each material are shown in Ta...
Embodiment 2
[0067] Example 2: Preparation of artificial urban solid waste using partially degraded solid waste in Qizi Mountain, Suzhou as a prototype
[0068] 1. Determine the ratio of each raw material and weigh:
[0069] (1) The analysis results of Qizishan solid waste components are shown in Table 6. The content of organic tendon phase in kitchen waste and paper, wood, textile, leather and other fibers is about 50%-70%, and the content of organic tendon phase in plastic is 100%, and the rest of the materials do not contain organic rib phase, so the organic rib phase content of partially degraded solid waste in Qizishan is about 30%-40%, which can be considered to be about 35%.
[0070] Table 6 Physical composition of real solid waste in Qizishan, Suzhou
[0071]
[0072] (2) Weigh kaolin and quartz sand according to the mass ratio of kaolin and quartz sand of 1:4, and dry kaolin, quartz sand and peat. At the same time, the content of organic rib phase in peat A is 93.3%; the conte...
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Abstract
The invention discloses a method for preparing artificial urban solid waste whose characteristics can be quantitatively controlled under supergravity conditions. Use peat, kaolin and quartz sand as raw materials, and keep the mass ratio of kaolin and quartz sand as kaolin:quartz sand=1:4; determine the ratio of each raw material through calculation and weigh it, so that the organic matter tendon phase content, pores of artificial urban solid waste The ratio and water content are consistent with the real solid waste; spread kaolin evenly on the quartz sand, mix well to obtain the mixture, grind peat to agglomerate, spread the mixture of quartz sand and kaolin evenly on the peat and mix well, add water to adjust the water content . The artificial urban solid waste prepared by this method can realize the quantitative control of various characteristics of the material and the excellent simulation of the relevant characteristics of real solid waste, which is of great significance for the study of problems related to landfills under hypergravity conditions.
Description
technical field [0001] The invention relates to a method for preparing and blending artificial urban solid waste, in particular to a method for preparing artificial urban solid waste that can be applied to quantitatively control and adjust various characteristics under supergravity conditions. Background technique [0002] For decades, my country has always used landfill as the most important means of solid waste disposal, and many large landfills with capacity close to saturation have been derived. The high content of solid waste and kitchen waste in my country and the easy silting of the drainage system lead to high water levels in landfills, which are prone to instability and slip disasters under extreme external effects, resulting in a large amount of leachate and solid waste. Leakage may further evolve into a large-scale, long-distance, high-speed slippery disaster. Therefore, the study on the stability of landfills is of great significance to the safety of the lives an...
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