CN216946670U - Zero discharge system is utilized to dirty full resources of excrement - Google Patents

Abstract

The utility model discloses a full resource utilization zero-emission system for feces and sewage, which has the technical scheme that the full resource utilization zero-emission system comprises a sludge collection tank, wherein the sludge collection tank is connected with a methane tank, a methane generator is connected to a gas outlet of the methane tank, a discharge port is connected with a first solid-liquid separator, the first solid-liquid separator is used for carrying out solid-liquid separation on the feces and sewage, a liquid outlet of the first solid-liquid separator is connected with a micro-filter, the micro-filter is connected with a third-stage sedimentation tank, the third-stage sedimentation tank is used for carrying out sedimentation treatment on filtered feces and water, the third-stage sedimentation tank is connected with third-stage filtering equipment, the third-stage filtering equipment is connected with a water storage tank through a water pipe, and the water storage tank is connected with a spray head for washing an feces path; the micro-filter is also connected with a second solid-liquid separator, the second solid-liquid separator is used for carrying out solid-liquid separation on the filtered excrement slag, and the generated excrement liquid is discharged into a three-stage sedimentation tank for sedimentation; through above-mentioned structure, can avoid the production of the dirty processing waste of excrement, can carry out maximize utilization to the excrement is dirty, has avoided the pollution of excrement to the environment, the effectual environment of having protected.

Description

A zero-emission system for full resource utilization of manure

technical field

The utility model relates to the technical field of manure treatment, in particular to a zero-discharge system for full resource utilization of manure.

Background technique

Dairy cow farming manure has always been a very troublesome problem for farms and surrounding people, especially, it has a great negative impact on environmental energy conservation and emission reduction. In recent years, my country's animal husbandry, especially the breeding industry, has made great progress. At the same time, the pollution (especially nitrogen and phosphorus pollution) caused by large-scale farms to the surrounding environment is also becoming more and more serious. Governance is imminent. A large amount of existing livestock and poultry manure is discharged and accumulated at will, and is directly used for agricultural fertilization without treatment, resulting in an increase in the content of nitrite and phosphorus nitrate in the soil environment, thereby reducing the use value of the soil. In addition, the harmful gas in the piled up manure diffuses into the air, causing pollution to the environment and affecting the lives of people around. Therefore, there is a need to provide a system for treating and effectively utilizing cow manure, so as to reduce the pollution to the environment caused by the cow manure.

Utility model content

In order to solve the above problems, the present utility model provides a zero-discharge system for full resource utilization of manure, which can realize the utilization and treatment of manure in the breeding process, thereby achieving zero discharge and avoiding environmental pollution.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is: a zero-discharge system for full resource utilization of manure, characterized in that it comprises a sewage collection tank for collecting manure on the fecal road, and the sewage collection tank is connected with biogas A biogas generator is connected to the gas outlet of the biogas tank, and a first solid-liquid separator is connected to the discharge port. The first solid-liquid separator separates the manure from solid and liquid, and separates the separated solid into In order to make organic fertilizer, the liquid outlet of the first solid-liquid separator is connected with a microfilter, and the microfilter is connected with a three-level sedimentation tank, and the three-level sedimentation tank is used to filter the filtered fecal water. For precipitation treatment, the tertiary sedimentation tank is connected with a tertiary filtration device, the tertiary filtration device is connected with a reservoir through a water pipe, and the reservoir is connected with a nozzle; the microfilter is also connected with a second Solid-liquid separator, the second solid-liquid separator is used for solid-liquid separation of the filtered manure residue, the separated solid is used to make cattle bedding material, and the manure liquid is discharged into the tertiary sedimentation tank for precipitation.

The utility model is further provided that the three-stage sedimentation tank includes a first-level sedimentation chamber, a second-level sedimentation chamber and a third-level sedimentation chamber which are connected in sequence, and the first-level sedimentation chamber is used for the filtered fecal water to form in the bacterial colony. Liquid fertilizer; an aeration tank for liquid and air contact is arranged in the secondary sedimentation chamber.

The utility model is further provided that the three-stage filtering equipment comprises a fine filter tank, a sand filter tank and a sterilization tank which are connected in sequence, and the fine filter tank is connected with the three-stage sedimentation tank.

The utility model is further provided that a fermentation tank is connected to the first-level sedimentation chamber, and a discharge pipe is arranged at the bottom of the third-level sedimentation chamber.

The utility model is further provided that a filter screen is arranged between the sewage collection tank and the biogas tank, and the filter screen is used for filtering the sundries in the sewage collection tank.

To sum up, the beneficial effects of the present utility model:

Compared with the prior art, the utility model realizes the full resource utilization of manure through the connection between the devices, thereby avoiding the pollution of the environment caused by the discharge of waste, and at the same time improving the utilization rate of the manure; The manure discharged by the separator can be used to make organic fertilizer; the manure discharged by the second solid-liquid separator can be used to make cattle mattress material, thereby reducing the generation of solid waste; and the produced manure is also It can be turned into tap water after a series of treatments and then used to flush the feces, saving water resources.

Description of drawings

FIG. 1 is a schematic structural diagram of this embodiment.

Reference signs: 1- sewage collection tank; 2- biogas tank; 3- biogas generator; 4- first solid-liquid separator; 5- micro filter; 6- three-stage sedimentation tank; 602-secondary sedimentation chamber; 603-third-level sedimentation chamber; 7-tertiary filtration equipment; 701-fine filter tank; 702-sand filter tank; 703-sterilization tank; 8-second solid-liquid separator.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in FIG. 1 , this embodiment discloses a zero-emission system for full resource utilization of feces, including a sewage collection tank 1 for collecting feces on the feces. After the nozzles wash the feces on the feces, the The fecal sewage will enter the sewage collection tank 1, and the sewage collection tank 1 will filter the garbage in the sewage and then let the sewage enter the biogas tank 2 through the pipeline. The sewage will ferment in the anaerobic environment of the biogas tank to generate biogas. , and then the biogas will enter the biogas generator 3 through the gas outlet above the biogas tank 2 for combustion and power generation. The biogas power generation can create income and reduce the production cost; in addition, the biogas tank 2 uses a Chinese patent (CN201721548751.2). Flow high-efficiency biogas fermentation tank can improve the effect of winter fermentation and increase the production of biogas;

The discharge port at the bottom of the biogas tank 2 is connected with a first solid-liquid separator 4, and the manure at the bottom will be separated into solid-liquid under the action of the first solid-liquid separator 4, and the separated solids will be discharged from the first solid-liquid separator. The separator 4 is used to make organic fertilizer, and the manure water enters the microfilter 5 through the liquid outlet of the first solid-liquid separator 4, and the manure water will be filtered again in the microfilter 5, so that the filtered The manure liquid enters the tertiary sedimentation tank 6, and the manure residue enters the second solid-liquid separator 8 for secondary solid-liquid separation, and the separated dry solids are used to make cattle mattresses, and the squeezed The liquid then enters the tertiary sedimentation tank 6; the super solid-liquid separator disclosed in the Chinese patent (CN202022853071.X) adopted by the first solid-liquid separator 4 and the second solid-liquid separator 8 has good Work efficiency and separation effect, at the same time, it can maintain the dry humidity of the material and adjust the pressure of the back pressure plate to avoid the phenomenon of blocking the cracking equipment when the material is discharged;

The three-stage sedimentation tank 6 is used for precipitation treatment of the filtered fecal water. The fecal water will produce layered precipitation under the action of bacteria in the first-level sedimentation chamber 601, and the liquid with less impurities in the upper layer will pass through aeration. The pond enters the secondary sedimentation chamber 602, and the liquid in the lower layer is used as the compound bacterial liquid fertilizer; this reduces the production cost of the bacterial liquid fertilizer and also reduces the treatment cost of the subsequent reuse water; then the liquid is under the action of the aeration tank. It will be fully contacted with the air, so that the oxygen in the air is dissolved in the liquid, thus ensuring the activity of the flora, and then entering the tertiary sedimentation chamber. Used as biogas slurry, it can be directly discharged into the farmland, and the relatively clean liquid in the upper layer will enter the tertiary filtration equipment 7. Under the action of the tertiary filtration equipment 7, the liquid will eventually become tap water that meets the national standard and enter the reservoir. The nozzles on the reservoir can flush the milking machine turntable and the cows, and the water after flushing can be used to flush the manure tract, thereby realizing the recycling of water resources and saving the cost of use;

Through the above device, the gas, liquid and solid generated in the treatment of manure can be maximized, the generation and discharge of waste can be reduced, the pollution of manure to the environment can be avoided, and the environment can be effectively protected. It saves water for flushing manure and realizes zero discharge.

In this embodiment, the tertiary filter equipment 7 includes a fine filter tank 701, a sand filter tank 702 and a sterilization tank 703 which are connected in sequence, and the fine filter tank 701 is connected to the tertiary sedimentation tank 6; the sterilization tank 703 realizes sterilization and filtration of water through carbon filtration and ultraviolet sterilization, so as to treat wastewater into national standard tap water.

In this embodiment, three connected fermentation tanks are connected to the lower end of the first-level sedimentation chamber 601 for storing compound bacterial liquid fertilizer, and a discharge pipe is arranged at the bottom of the third-level sedimentation chamber 603 to discharge the biogas slurry into the farmland.

In this embodiment, a filter screen is arranged between the sewage collection tank 1 and the biogas tank 2 , and the filter screen is used to filter the sundries in the sewage collection tank 1 .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the design concept of the present invention shall be included in the present invention. within the scope of the new protection.

Claims (5)

1. a zero-discharge system for full resource utilization of feces, is characterized in that, comprises the septic tank (1) for collecting feces on the fecal road, and described septic tank (1) is connected with biogas tank (2), A biogas generator (3) is connected to the gas outlet of the biogas tank (2), and a first solid-liquid separator (4) is connected to the discharge port, and the first solid-liquid separator (4) separates the manure for solidification. liquid separation, and the separated solid is used to make organic fertilizer, the liquid outlet of the first solid-liquid separator (4) is connected with a microfilter (5), and the microfilter (5) is connected with a A tertiary sedimentation tank (6) is used for sedimentation treatment of the filtered fecal water, and the tertiary sedimentation tank (6) is connected with a tertiary filtration device (7), and the The tertiary filtration equipment (7) is connected with a water reservoir through a water pipe, and the water reservoir is connected with a spray head; the microfilter (5) is also connected with a second solid-liquid separator (8), the second solid-liquid separator (8). The liquid separator (8) is used for solid-liquid separation of the filtered manure residue, the separated solid is used for making cattle bedding material, and the manure liquid is discharged into the tertiary sedimentation tank (6) for precipitation. 2. The zero-discharge system for full resource utilization of manure according to claim 1, wherein the three-stage sedimentation tank (6) comprises a first-level sedimentation chamber (601) and a second-level sedimentation chamber connected in sequence (602) and a tertiary sedimentation chamber (603), the primary sedimentation chamber (601) is used for the filtered fecal water to form liquid fertilizer in the flora; the secondary sedimentation chamber (602) is provided with Air contact aeration tank. 3. The zero-emission system for full resource utilization of manure according to claim 1, characterized in that, the three-stage filtering equipment (7) comprises a fine filter tank (701) connected in sequence, and a sand filter tank (701). 702) and a sterilization tank (703), the fine filter tank (701) is connected with the tertiary sedimentation tank (6). 4. The zero-emission system for full resource utilization of manure according to claim 2, wherein the first-level sedimentation chamber (601) is connected with a fermentation tank, and the bottom of the third-level sedimentation chamber (603) is provided with There is a discharge pipe. 5. The zero-emission system for full resource utilization of manure according to claim 1, wherein a filter screen is provided between the sewage collection tank (1) and the biogas tank (2), and the filter screen It is used to filter the sundries in the sewage collection tank (1).

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