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Biogas slurry treatment system for use in biogas project

A biogas slurry treatment and engineering technology, which is applied in the field of biogas engineering biogas slurry treatment system, can solve the problems of difficult transportation, unacceptable farmers, inability to digest biogas slurry, etc., to save investment, solve serious pollution problems, and high fermentation efficiency Effect

Active Publication Date: 2011-06-22
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Biogas slurry is a good organic fertilizer, containing nitrogen, phosphorus, potassium and other nutrients needed for crop growth. At the same time, biogas slurry contains rich amino acids, B vitamins, various hydrolytic enzymes, certain auxins, Substances or factors that can inhibit pests and diseases, so it can also be used to raise fish, feed pigs, feed cattle, and control certain pests and diseases of crops. It has a wide range of comprehensive utilization prospects. At present, the biogas slurry of many large and medium-sized biogas projects is used as Liquid fertilizer, but because there are many biogas projects in the country, the amount of biogas slurry produced every day is large, and the use of liquid fertilizer has problems such as transportation difficulties and farmers’ difficulty in accepting it. Only as fertilizer can not absorb the large amount of biogas slurry produced every day, so looking for A biogas engineering biogas slurry treatment system is imperative

Method used

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  • Biogas slurry treatment system for use in biogas project
  • Biogas slurry treatment system for use in biogas project
  • Biogas slurry treatment system for use in biogas project

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Embodiment 1

[0032] like figure 1 The biogas slurry treatment system shown in the biogas project includes a sedimentation tank 1, a regulating tank 2, an anaerobic reaction device and a biochemical ceramic post-treatment device 4, a sedimentation tank 1 and a regulating tank 2, a regulating tank 2 and an anaerobic reaction device, an anaerobic reaction device, and an anaerobic reaction device. The oxygen reaction device is connected with the biochemical ceramic post-processing device 4 in sequence, and the anaerobic reaction device is composed of two anaerobic reactors 3. The water inlet of the anaerobic reactor 3 is connected with each other; the anaerobic reactor 3 is filled with a spiral biological filler 13, the lower part of the side wall of the anaerobic reactor 3 is provided with a water inlet pipe 8, and the upper part of the side wall of the anaerobic reactor 3 is provided with a sampling port 12, The top of the anaerobic reactor 3 is provided with a gas outlet 10; the biogas gene...

Embodiment 2

[0044] The biogas engineering biogas slurry treatment system as described in embodiment 1, the difference is that the central angle 15 of the arched structure 14 is 75 ° (such as image 3 shown). The width of the cylindrical helicoid is 1.8cm, and the thickness is 0.15mm.

[0045] The above-mentioned biogas project biogas slurry treatment system aims at producing 200m 3 The relevant design parameters of biogas slurry as raw material of cow dung are as follows:

[0046] The amount of biogas slurry that needs to be treated every day is 200m 3 , the specific device design dimensions are as follows:

[0047] (1) Sedimentation tank 1 is made of brick concrete with a volume of 300m 3 , the size is length × width × height = 10.0m × 6.0m × 5.0m;

[0048] (2) The adjustment pool 2 is made of brick concrete, with a volume of 240m 3 , the size is length × width × height = 10.0m × 4.0m × 6.0m;

[0049] (3) Anaerobic reactor 3 is that the design hydraulic retention time is 20h, and ...

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Abstract

The invention relates to a biogas slurry treatment system for use in a biogas project and belongs to the technical field of wastewater treatment. The biogas slurry treatment system for use in the biogas project comprises a settling pool, a regulating pool and an anaerobic reaction device, wherein the settling pool, the regulating pool and the anaerobic reaction device are connected in turn. The invention is characterized in that: the system also has a biochemical ceramic post-treatment device which is connected with the anaerobic reaction device; the anaerobic reaction device consist of an anaerobic reactor in which a spiral biological filler is arranged; the spiral biological filler is fixed by a polyvinyl chloride (PVC) plate with a hole; a water inlet is formed on the lower part of the side wall of the anaerobic reactor; a water outlet and a sampling opening are formed on the upper part of the side wall; and an exhaust hole is formed on the top part. The system has the characteristics of high treatment efficiency, small floor area, low price, convenience for maintenance and use, and the like.

Description

technical field [0001] The invention relates to a biogas engineering biogas slurry treatment system, which belongs to the technical field of wastewater treatment. Background technique [0002] With the development of my country's animal husbandry industry in the direction of scale and intensification, the number of large and medium-sized biogas projects is also increasing day by day. By the end of 2009, my country had built 22,892 large and medium-sized biogas projects using agricultural waste such as livestock and poultry manure as raw materials. , including 3,717 large-scale biogas projects with a total pool capacity of 2.849 million cubic meters. During the operation of the biogas project, in addition to producing new energy - biogas, it also produces a large amount of biogas slurry. Biogas slurry is a good organic fertilizer, containing nitrogen, phosphorus, potassium and other nutrients needed for crop growth. At the same time, biogas slurry contains rich amino acids, B...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 王艳芹刘兆辉边文范李国生袁长波姚利张昌爱
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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