CN104310705A - Comprehensive faces treatment method for community-type dry-manure-collection dairy farm with breeding stock of less than 500 - Google Patents

Abstract

A method for treating manure and sewage in a dry-cleaning dairy farm with less than 500 cows. The steps are as follows: collect the flushing water and cow urine from the milking parlor through a dark ditch, filter out animal cilia and mustard through a grid, and transport them to an anaerobic reactor. ;After the anaerobic fermentation treatment, the organic matter is fully degraded, and the effluent is led to the aerobic tank for aeration treatment to achieve deodorization and deammonization. The remaining water can be directly used for planting through the appropriate ratio of the mixed irrigation tank; The obtained solid manure is directly transported to the manure shed by the manure cleaning truck for secondary resource utilization, and can be used as a substrate for earthworm breeding, composted decomposed manure or sold directly as fertilizer. The advantages of the present invention are: the method collects and classifies feces and sewage, which reduces the investment cost and operating cost of feces treatment; it has good versatility, long service life and wide application range, and can effectively improve the environment of the farm and its surroundings Hygienic; simple operation and maintenance, semi-automatic operation can be realized.

Description

Comprehensive treatment method for dry manure dairy farm with less than 500 cows

technical field

The present invention The present invention relates to a technology for comprehensive treatment of manure in dairy farms, in particular to a method for comprehensive treatment of manure in dry-cleaned dairy farms with less than 500 cows in stock.

Background technique

According to the Ministry of Agriculture's "National Advantageous Agricultural Products Regional Planning and Layout 2008-2015" statistics, at present, my country's per capita dairy product consumption is only equivalent to 1/4 of the world's average level and 1/12 of that of developed countries, and there is broad room for development. In recent years, with the increase in the demand for dairy products, driven by the dairy cattle advantage area, my country's dairy industry has continued to develop at a high speed, and a number of star enterprises and well-known brands have emerged, and have achieved remarkable results. The breeding volume is 14.4 million. According to the plan, it is estimated that by 2015, the national dairy cow breeding volume will reach 17 million. With the continuous expansion of breeding scale and the increase in the number of intensive dairy farms, the environmental pollution caused by large-scale dairy farm manure, especially the pasture-type large-scale dairy farms that use dry manure as the main manure cleaning process A large amount of high-concentration farming manure is causing widespread concern in the society.

Due to the large amount of manure generated and discharged during the industrial development process has not been effectively controlled and utilized in a timely manner, resulting in a large waste of resources and threatening the quality of livestock products and the safety of the breeding environment. To this end, the national and local governments have issued a series of laws, regulations, standards and norms to constrain and promote the healthy development of the industry. On January 1, 2014, the State Council officially promulgated the "Regulations on the Prevention and Control of Pollution from Large-scale Livestock and Poultry Breeding"; Poultry Breeding Industry Pollution Prevention and Control Technical Specifications, and Livestock and Poultry Breeding Industry Pollution Control Engineering Technical Specifications to constrain and solve livestock and poultry breeding pollution problems.

The dry-cleaning large-scale dairy farm breeding method and its manure collection method are common in the dairy farming industry. Almost all large-scale dairy farming in the community adopts the dry-cleaning process. The manure treatment of this type of farm is conducive to promoting the entire The healthy development of the dairy farming industry plays an important role. Compared with the production and discharge of manure in dairy farms with water flushing manure, the manure is mainly collected and transported in the form of solid, and the amount of aquaculture wastewater is relatively small, and the organic matter content in the wastewater is small, but if it is not treated and left at will The discharge will also cause serious environmental pollution, and the key problem to be solved by the present invention is to formulate an economical, applicable and targeted manure treatment process.

Through industry research, the manure of large-scale dry-cleaning dairy farms mainly comes from cowsheds and sports fields; the waste water in the dry-cleaning process mainly comes from the flushing water of the milking parlor equipment pipeline, the floor flushing water of the parlor to be squeezed, cow urine, and the residential area. Large dairy farms generally do not spray. Different breeding scales will produce different amounts of wastewater, and the corresponding treatment methods will also be quite different. The present invention mainly formulates corresponding treatment methods for small-scale dairy farms with less than 500 cows.

Contents of the invention

The purpose of the present invention is to provide a comprehensive treatment method for manure and sewage in small-scale dry-cleaning dairy farms with less than 500 cows in view of the characteristics and existing problems of manure production and discharge in small-scale dry-cleaning dairy farms with less than 500 cows. Sewage classification collection and classification treatment, with seasonal adaptability and storage and deep purification capabilities, can realize the comprehensive treatment of manure combined with planting and breeding.

Technical scheme of the present invention:

A method for treating manure and sewage of dry-cleaned dairy farms with less than 500 cows in stock, comprising the following steps:

1) First, collect the equipment flushing water from the milking parlor, the ground flushing water from the parlor to be milked, cow urine and a small amount of cow manure from the underground ditch in the parlor, and filter out animal cilia and grass mustard through the grid after collection, and then The dark pipe is transported to the anaerobic reactor;

2) After the anaerobic fermentation treatment in the anaerobic reactor, the organic matter is fully degraded, and most of the nitrogen-containing organic matter is converted into ammonia nitrogen. The generated biogas can be used as clean energy for comprehensive utilization, and the effluent is led to the aerobic tank for aeration treatment;

3) In the aerobic pool, deodorization and deamination are achieved through aerobic treatment. The organic matter of the aquaculture wastewater after aeration treatment has been effectively degraded, free ammonia has been removed, and the remaining water body will be very suitable for plant absorption and utilization. Good water and fertilizer resources can be directly used for planting through the appropriate ratio of mixed irrigation tanks;

4) The solid manure collected by cowsheds and sports fields is directly transported to the manure shed by the manure cleaning truck as a raw material reserve for secondary resource utilization, or as a substrate for earthworm breeding or composted manure, sold directly and finally used as fertilizer for crop farming.

the

Advantage and positive effect of the present invention are:

1) This method makes full use of the characteristics of excrement and sewage production and discharge in dry-cleaning dairy farms with a population of less than 500 cows, and has realized the ultimate goal of recycling breeding waste. The feces and sewage are collected and treated in a separate manner, reducing the need for manure treatment. investment and operating costs;

2) This method has good versatility, long service life, and wide application range, and can meet the manure treatment of dry-cleaning dairy farms in different regions with a population of less than 500 cows;

3) This method can effectively improve the environmental sanitation of the farm and its surroundings, and provide a guarantee for the development of clean farming;

4) This method can realize semi-automatic operation, and the operation and maintenance are simple. The operation of the whole system only needs part-time operation, and no fixed personnel are required.

the

Description of drawings

Fig. 1 is the flow chart of this cattle farm manure treatment method.

the

Detailed ways

Example:

A method for comprehensive treatment of manure and sewage in small-scale dry-cleaning dairy farms with less than 500 cows in stock, as shown in Figure 1, comprising the following steps:

1) First, collect the equipment flushing water from the milking parlor, the ground flushing water from the parlor to be milked, cow urine and a small amount of cow manure from the underground ditch in the parlor, and filter out animal cilia and grass mustard through the grid after collection, and then The dark pipe is transported to the anaerobic reactor;

2) After the anaerobic fermentation treatment in the anaerobic reactor, the organic matter is fully degraded, and most of the nitrogen-containing organic matter is converted into ammonia nitrogen. The generated biogas can be used as clean energy for comprehensive utilization, and the effluent is led to the aerobic tank for aeration treatment;

3) In the aerobic pool, deodorization and deamination are achieved through aerobic treatment. The organic matter of the aquaculture wastewater after aeration treatment has been effectively degraded, free ammonia has been removed, and the remaining water body will be very suitable for plant absorption and utilization. Good water and fertilizer resources can be directly used for planting through the appropriate ratio of mixed irrigation tanks;

4) The solid manure collected from cowsheds and sports grounds is directly transported to the manure shed by the manure cleaning truck as a raw material reserve for secondary resource utilization. It can be used as a substrate for earthworm breeding, can be directly stacked and decomposed manure, and can be directly sold for final use. Used as fertilizer for crops.

This method fully combines the characteristics of breeding technology and manure cleaning process of dry manure cleaning dairy farms with less than 500 cows on hand, collects manure and sewage by classification, and reduces the investment cost and operation cost of manure treatment. The process has good versatility and a wide range of applications, and can effectively improve the environmental sanitation of the farm and its surroundings. The process technology is perfect, it is well used, and it has significant technical and economic effects.

Claims (1)

1. A method for treating excrement from small-scale dry-cleaning dairy farms with less than 500 heads in stock, characterized in that it comprises the following steps: 1) First, collect the equipment flushing water from the milking parlor, the ground flushing water from the parlor to be milked, cow urine and a small amount of cow manure from the underground ditch in the parlor, and filter out animal cilia and grass mustard through the grid after collection, and then The dark pipe is transported to the anaerobic reactor; 2) After the anaerobic fermentation treatment in the anaerobic reactor, the organic matter is fully degraded, and most of the nitrogen-containing organic matter is converted into ammonia nitrogen. The generated biogas can be used as clean energy for comprehensive utilization, and the effluent is led to the aerobic tank for aeration treatment; 3) In the aerobic pool, deodorization and deamination are achieved through aerobic treatment. The organic matter of the aquaculture wastewater after aeration treatment has been effectively degraded, free ammonia has been removed, and the remaining water body will be very suitable for plant absorption and utilization. Good water and fertilizer resources can be directly used for planting through the appropriate ratio of mixed irrigation tanks; 4) The solid manure collected by cowsheds and sports fields is directly transported to the manure shed by the manure cleaning truck as a raw material reserve for secondary resource utilization, or as a substrate for earthworm breeding or composted manure, sold directly and finally used as fertilizer for crop farming.