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Dairy cow breeding manure treatment process

A treatment process and manure technology, which is applied in the field of cow breeding manure treatment process to achieve the effects of ensuring normal operation, reducing energy consumption and reducing costs

Pending Publication Date: 2021-05-14
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, without treatment, it is difficult to have a corresponding area of ​​land to absorb such a huge amount of manure, especially in southern regions and suburban pastures, where the problem of manure treatment is more prominent

Method used

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  • Dairy cow breeding manure treatment process
  • Dairy cow breeding manure treatment process
  • Dairy cow breeding manure treatment process

Examples

Experimental program
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Effect test

Embodiment 1

[0050] A kind of dairy cow breeding manure treatment process provided in this embodiment, for dairy farms that use organic matter such as rice husks and sawdust as bedding materials for cow beds, the process flow chart is as follows figure 1 As shown, it specifically includes the following steps:

[0051] Step 1: The manure in the cowshed of the dairy farm enters the sump, and the homogenization of water quality and water quantity is realized in the sump;

[0052] Step 2: The feces in the sump are pumped into the solid-liquid separator through the sump pump to separate the large particles and long-fiber solids in the feces. The solids separated by the solid-liquid separator fall into the dung temporary storage tank. The waste water after solid-liquid separation flows into the intermediate pool 1 by itself;

[0053] Step 3: The waste water in the middle pool 1 is pumped into the anaerobic reactor through the lift pump of the middle pool 1 to carry out anaerobic reaction, and t...

Embodiment 2

[0080] This embodiment provides a dairy cow breeding manure treatment process. For dairy farms that use organic and inorganic mixtures such as rice husk, sawdust, and quartz sand as bedding materials for cow beds, the process flow chart is as follows figure 2 As shown, it specifically includes the following steps:

[0081] Step 1: The cow manure in the cowshed of the farm enters the sump, and the water quality and water quantity are homogenized in the sump;

[0082] Step 2: The feces in the sump are conveyed through the sump into the screening machine to separate the large particles and long-fiber solids in the feces. The solids separated by the screening machine will first fall into the extrusion dehydrator for further dehydration, and then fall into the Temporary dregs storage tank, the solids in the dung dregs temporary storage tank are transported to the rotary dryer for drying, and kill pathogenic microorganisms, and then reuse them as bedding materials for cattle beddin...

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Abstract

The invention discloses a dairy cow breeding manure treatment process which comprises the following steps: performing solid-liquid separation treatment on manure generated in a dairy cow farm, performing solid-liquid separation to generate solid and liquid, performing anaerobic treatment on the liquid to generate biogas and wastewater, drying the solid subjected to solid-liquid separation or generating power by using the biogas, and using the dried solid as cow bed padding; directly using wastewater for agricultural irrigation after being treated, and performing organic fertilizer fermentation on sludge discharged during treatment and part of solid obtained through solid-liquid separation. The excrement is economically subjected to innocent treatment and resource utilization as much as possible through the treatment process, the utilization rate of the excrement is increased, the treated product is recycled, the treatment cost is reduced, and disturbance and damage to the environment are reduced.

Description

technical field [0001] The invention relates to a manure treatment process, in particular to a dairy cow breeding manure treatment process. Background technique [0002] The development level of the dairy industry is one of the important symbols of the modernization degree of a country's animal husbandry. The development of the dairy industry during the "Tenth Five-Year Plan" period has enriched the agricultural product market, improved the dietary structure of urban and rural residents, promoted the adjustment of rural industrial structure and the coordinated development of urban and rural areas, and new changes have taken place in the production mode, organizational form and product structure of the dairy industry. The way of raising dairy cows has gradually developed from individual farmers to large-scale, high-quality, and specialized production of dairy cows. [0003] The development of society and the advancement of science and technology have made the dairy industry ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/12C02F11/02C02F11/00C02F103/20
CPCC02F9/00C02F11/12C02F11/02C02F11/00C02F3/28C02F1/52C02F1/78C02F1/66C02F3/327C02F2103/20
Inventor 何若平韦萍胡南贾红华
Owner NANJING UNIV OF TECH
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