Comprehensive treatment process for non-point source pollution of breeding manure and agricultural mulching film
A non-point source pollution, comprehensive treatment technology, applied in the field of agricultural pollution treatment, can solve the problems of urgent recycling and cleaning of waste plastic film, white pollution, difficult degradation, etc., achieve excellent self-healing performance and support performance, not easy to crack, improve adhesion and the effect of toughness
Pending Publication Date: 2021-07-13
长江生态环保集团有限公司
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Problems solved by technology
These plastic film residues are extremely difficult to degrade under natural conditions and can exist in the soil for 200-400 years. The remaining agricultural film damages the physical and chemical structure of the soil and turns into "white pollution". It is urgent to recycle and clean up the waste plastic film Therefore, the present invention proposes a comprehensive treatment process for the non-point source pollution of breeding manure and agricultural plastic film to solve the problems in the prior art
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Embodiment Construction
[0042] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0043] according to figure 1 As shown, the present embodiment provides a comprehensive treatment process for farming manure and agricultural plastic film non-point source pollution, including the following steps:
[0044] Step 1: Collect manure
[0045] Collect livestock and poultry manure, dehydrate the livestock and poultry manure with a screw extrusion dehydrator, air-dry the livestock and poultry manure to a moisture content of ≤8%, and make solid manure, and then crush the solid manure into powder through an impact crusher Body feces, crush the solid feces to particles ≤ 1.5mm, and transport them to the storage warehouse for storage;
[0046] Step 2: Prepare fiber mixture
[0047] Add limestone ore powder to the powder feces, put it into a stirring tank, heat the temperature to 150-180°C, and carry out dry mixing at the same time. After the limes...
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The invention provides a comprehensive treatment process for non-point source pollution of breeding manure and an agricultural mulching film. The comprehensive treatment process comprises the following steps: collecting manure, preparing a fiber mixture, preparing a base material, collecting the agricultural mulching film, preparing recycled film particles, preparing a composite base material, preparing a particle blank and preparing aggregate. According to the method, the manure is dehydrated and then matched with the limestone mineral powder, the clay and the sludge to prepare the base material, the manure contains a large amount of undigested crude protein, crude fibers, crude fat, mineral substances and the like, amino acids are complete in composition and rich in content, wood fibers are added after the aggregate is prepared, the adhesion and toughness of the base material are improved, cracking is not eay, and durability and stability are ensured. Meanwhile, the waste agricultural mulching film is cut up, mixed with multiple reagents and extruded into the recycled film particles, due to the PVC characteristic of the waste agricultural mulching film, the recycled film particles also have the PVC performance, and after the recycled film particles are mixed with a base material prepared from feces, the toughness and stability of the base material can be improved again.
Description
technical field [0001] The invention relates to the technical field of agricultural pollution treatment, in particular to a comprehensive treatment process for non-point source pollution of breeding manure and agricultural mulching film. Background technique [0002] With the continuous development of my country's economy and the adjustment of agricultural structure, the large-scale livestock and poultry breeding industry has developed rapidly and has become an important pillar in the development of my country's rural economy; the rapid development of modern animal husbandry, large-scale and intensive farms have become the current The main direction of the development of animal husbandry, but with the increase in the degree of intensive breeding, the concentrated discharge of manure cannot be self-purified by the environment, and the impact of large-scale breeding on the environment is becoming more and more prominent. The existing technology generally makes manure into fertil...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C04B18/02C04B18/04C04B18/26
CPCC04B18/027Y02W30/91
Inventor 张超张栋刘娜
Owner 长江生态环保集团有限公司