Method for treating excrements in farm

A technology for manure treatment and farms, applied in the field of pollutant treatment, can solve problems such as high cost, poor effect, and secondary pollution

Active Publication Date: 2015-02-18
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method for efficient, low-cost, and pollution-free farm manure treatment, to overcome the high cost and long cycle of the manure treatment method in the prior art. , poor effect and easy to cause secondary pollution defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] To treat the pig manure produced in the pig pen in the farm.

[0058] Preliminary treatment of pig manure in simulated pigsty: 7.5kg per day defecation per stocked pig, weight ratio of straw to pig manure of pigpen bedding material of 1:4, pig manure charcoal to pig manure weight ratio of 1:50, choose 5m 2 To simulate a pig pen in an odorless place, take 22.5kg of fresh pig manure, add 5.7kg of straw powder, 0.45kg of pig manure charcoal, mix well and pile up, and the pig manure mixture will be produced after 3 days, and then press 50g / m 2 Spread pig manure charcoal powder (pass 30 mesh sieve) on the standard. During the stacking process, the odor concentration of the simulated pigsty is measured by the three-point odor bag method every day. After measurement, the odor concentration of the simulated pigsty is 0 (dimensionless).

[0059] Solid-liquid separation: solid-liquid separation of the slaughtered pig manure mixture with a flat-plate hanging bag unloading centrifuge to...

Embodiment 2

[0063] Preliminary treatment of cow dung in a simulated cattle farm: 17.5 kg of feces per day for each cow, and the weight ratio of straw to pig dung as the bedding material of the cow shed 1:5, and the weight ratio of pig dung charcoal to pig dung 1:50, choose one 10m 2 To simulate a cow pen in an odorless place, take 52.5kg of fresh cow dung, add 7kg of straw powder, 0.7kg of cow dung charcoal, mix well and pile up, the cow dung mixture will be produced after 2 days, and then press 50g / m 2 Spread cow dung charcoal powder (pass 30 mesh sieve) on the standard. During the stacking process, the odor concentration of the simulated bullpen is measured by the three-point odor bag method every day. After measurement, the odor concentration of the simulated bullpen is 0 (dimensionless).

[0064] Solid-liquid separation of cow dung mixture: The slaughtered cow dung mixture is separated by solid-liquid separation using a flat-plate hanging bag unloading centrifuge to obtain a solid cow du...

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Abstract

The invention discloses a method for treating excrements in a farm. The method for treating the excrements in the farm sequentially comprises the following steps: (1) adding biomass materials into excrements in the farm and mixing to obtain an animal excrement mixture; (2) carrying out solid-liquid separation on the animal excrement mixture to obtain solid excrements and wastewater; 3) carrying out dry distillation on the solid excrements to obtain animal excrement activated carbon, animal excrement carbon and fuel gas formed by pyrolysis of the animal excrement mixture; and 4) filtering the wastewater. The excrements in a large-medium-scale farm are treated by the method disclosed by the invention, the farm environment can be significantly improved, the problem of treatment of excrements in the farm is effectively solved, and novel environmental pollution cannot be caused, the process is rapid, convenient and easily implemented, has obvious effect and is suitable for industrial large-scale application.

Description

Technical field [0001] The invention relates to a method for treating pollutants, in particular to a method for treating manure in a farm. Background technique [0002] In our country, large-scale farming is the main source of meat in cities and towns. However, the large amount of livestock manure produced by farming has brought serious problems to the environment. Although various livestock manure treatment measures have appeared, there is still a lack of effective cure methods. As far as pig farms in southern China are concerned, manure treatment methods mainly include six categories: (1) production of organic fertilizer, cultivation substrate, and edible fungus cultivation base through solid fermentation; (2) use of large German biogas digesters to produce biogas; (3) Recycling for ecological farming; (4) making fuel; (5) purifying treatment through sewage treatment plant; (6) using chemical methods for acidification and oxidation treatment. The odor generated during the soli...

Claims

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Application Information

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IPC IPC(8): C02F11/10C10B53/00C02F103/20
CPCC02F11/10C02F2103/20C10B53/00
Inventor 陈建国
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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