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Purification treatment method and apparatus for pig raising waste liquid

A technology for purifying treatment and waste liquid, applied in chemical instruments and methods, fertilization devices, adsorption water/sewage treatment, etc., can solve problems such as environmental pollution by pig-raising waste liquid, and achieve the effects of low price, sufficient raw materials, and easy implementation.

Inactive Publication Date: 2009-07-15
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for purifying waste liquid from pig raising; the solid-liquid separation of the waste generated from pig raising is carried out by adopting the inclined plate sieve method, and the high-concentration pig raising The pig waste liquid is quickly purified and discharged up to the standard, and the adsorption filter material can be made into organic fertilizer; the purification treatment device includes an adsorption filter tank and a self-purification sedimentation tank; its process is simple and low in cost, and it solves the problem of pig waste liquid polluting the environment

Method used

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  • Purification treatment method and apparatus for pig raising waste liquid
  • Purification treatment method and apparatus for pig raising waste liquid
  • Purification treatment method and apparatus for pig raising waste liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The implementation site is a 120-head family pig farm. The 90-mesh inclined plate sieve produced by Beijing Xida Agricultural Engineering Technology Group was used for solid-liquid separation; the No. 1 adsorption filter was a cuboid, the length and width of the cuboid were 1m each, and the height was 0.95m. The No. 1 water distribution horizontal pipe is 10cm from the ground, and the filter materials are No. 1 slag layer 10cm, No. 1 straw layer 20cm, No. 1 slag layer 10cm, No. 1 straw layer 20cm, No. 1 zeolite layer (1-2cm) and the lower layer. Crop straw (No. 1 straw layer 15cm) mixed with No. 1 crushed stone layer 10cm, and No. 1 seepage board under the No. 1 crushed stone layer.

[0047] The length, width and height of the self-purifying sedimentation tank are all 1m.

[0048] The size of the No. 2 adsorption filter pool is similar to that of the No. 1 filter pool, and the length, width and height are all 1m. No. 2 water distribution horizontal pipe is 10cm away f...

Embodiment 2

[0050] The implementation site is a 400 pig farm. The 90-mesh inclined plate sieve produced by Beijing Xida Agricultural Engineering Technology Group was used for solid-liquid separation; the No. 1 adsorption filter was a cuboid, the length and width of the cuboid were 2m each, and the height was 1.05m. The No. 1 water distribution horizontal pipe is 15cm from the ground, and the filter materials are No. 1 slag layer 10cm, No. 1 straw layer 20cm, No. 1 slag layer 10cm, No. 1 straw layer 20cm, No. 1 zeolite layer (1-2cm) and the lower layer. Crop straw (No. 1 straw layer 15cm) mixed with No. 1 crushed stone layer 15 cm, and No. 1 seepage board under the No. 1 crushed stone layer.

[0051] The size of the self-purifying sedimentation tank is 2m in length and width, and 1.05m in height.

[0052] The size of No. 2 adsorption filter tank is similar to that of No. 1 filter tank, with a length and width of 2m and a height of 1.1m. The No. 2 water distribution horizontal pipe is 15c...

Embodiment 3

[0054] The implementation site is a pig farm with about 800 pigs. The 90-mesh inclined plate sieve produced by Beijing Xida Agricultural Engineering Technology Group was used for solid-liquid separation; the No. 1 adsorption filter was a cuboid with a length and width of 2.5m and a height of 1.45m. The No. 1 water cloth is 15cm above the ground, and the filter materials are No. 1 slag layer 15cm, No. 1 straw layer 30cm, No. 1 slag layer 15cm, No. 1 straw layer 30cm, No. 1 zeolite layer (1-2cm) and the crops in the lower layer. Straw (No. 1 straw layer 20cm) mixed with No. 1 gravel layer 20cm, and No. 1 seepage board under the No. 1 gravel layer.

[0055] The size of the self-purifying sedimentation tank is 2.5m in length and width, and 1.4m in height.

[0056] The size of No. 2 adsorption filter tank is similar to that of No. 1 filter tank, with a length and width of 2.5m and a height of 1.4m. The No. 2 water distribution horizontal pipe is 15cm above the ground, and the fil...

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Abstract

The invention relates to waste processing, in particular to a method and a device for purifying waste liquid from pig cultivation, which solves the problem that the waste liquid of pig cultivation pollutes the environment. After solid and liquid waste generated by pig cultivation is separated, absorption, filtration and automatic purification technology is used for enabling the separated waste liquid from pig cultivation to enter into a first absorption pool for first absorption and filtration, then filtrated liquid enters an automatic purification depositing pool for purification depositing processing and then a second absorption pool for second absorption and filtration processing, and lastly, the processed waste water reaches the standard and is discharged. The device for purifying waste liquid from pig cultivation comprises a first absorption and filtration pool, an automatic purification depositing pool and a second absorption and filtration pool which are sequentially communicated, wherein filtration material is arranged in the absorption and filtration pools, and the filtration material is only one or a plurality of layers of furnace slag, crop stems, zeolite and gravel. The invention has simple technology, low cost and easy application, and is suitable for the purification and the standard discharge of the waste liquid from family type pig farms or small pig farms.

Description

technical field [0001] The invention relates to waste treatment technology, in particular to a method and device for treating pig waste liquid. Background technique [0002] In recent years, with the rapid development of animal husbandry, the scale of animal husbandry has been increasing, and the problem of livestock and poultry waste pollution has become increasingly prominent. The surface runoff in the open-air storage yard of pig manure and urine during the rainy season is the main way to cause surface water and groundwater pollution. Due to the strong leaching ability of feces and urine, the leaching amount of nitrogen, phosphorus and BOD in feces and urine is very large. If they are not properly treated, they will enter the groundwater layer through surface runoff and infiltration, or accumulate in the soil, causing soil pollution. pollute. The manure of pig farms includes two aspects: solid and liquid: one is solid, that is, dry manure, which is easier to handle. It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F1/28C02F1/52C05F3/00
CPCY02A40/20
Inventor 姜勇张玉革梁文举
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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