CN204644062U - The dirty utilization system of aquaculture excrement - Google Patents

Abstract

The utility model discloses a system for comprehensive utilization of manure and sewage in aquaculture, which comprises a manure collection unit, a solid-liquid separation unit, an anaerobic fermentation unit, a biogas utilization unit and a biogas slurry utilization unit. Pool, the solid-liquid separation unit includes solid-liquid separator, buffer tank and organic fertilizer treatment device, the anaerobic fermentation unit is a multi-stage anaerobic reaction device, including a primary anaerobic reaction tank and a secondary anaerobic reaction tank, biogas utilization unit It includes a biogas cabinet, a biogas purification device and a biogas power generation device. The biogas slurry utilization unit includes a biogas slurry storage tank, farmland irrigation device and forestry irrigation device; a ring disinfection device is installed around the filter tank, septic tank and buffer tank, and the upper part is set Has a plastic film layer. The utility model ferments manure and sewage to produce biogas and biogas liquid, and produces organic fertilizer through solid-liquid separation, avoids secondary pollution of waste gas, enables full reuse of manure and sewage, and improves comprehensive utilization rate.

Description

Aquaculture manure comprehensive utilization system

Technical field:

The utility model relates to a manure utilization system, in particular to a comprehensive utilization system of manure in aquaculture. By adopting solid-liquid separation and anaerobic fermentation technology, the manure and sewage are firstly separated into dry manure and manure water, and the dry manure passes through The treatment becomes organic fertilizer, and the manure is anaerobically fermented to produce biogas and biogas slurry. The biogas can be used to generate electricity, and the biogas slurry can be used to irrigate farmland and trees.

Background technique:

With the development of animal husbandry and the rapid increase of large-scale pig farms and pig breeding areas, the main problem brought about is the treatment of a large amount of fecal sewage and wastewater: due to the strong leaching of feces and urine, if not properly treated, It will enter the groundwater layer through surface runoff and infiltration, or accumulate in the soil, causing soil pollution. The surface runoff of pig farm manure and urine open-air dumps during the rainy season is the main way to cause surface water and groundwater pollution. Therefore, how to effectively deal with the excrement and urine of large-scale pig farms is a major problem to be solved urgently. If there is a way to effectively treat the manure and sewage produced by breeding and reuse the manure, it can save a lot of money for the breeding industry and improve the comprehensive utilization rate.

Utility model content:

The technical problem to be solved by the utility model is: to provide a comprehensive utilization system of aquaculture manure, which can not only produce biogas and biogas liquid through fermentation of manure and sewage, but also produce organic fertilizer through solid-liquid separation, so that waste can be effectively and fully Reuse, improve comprehensive utilization.

The technical scheme that the utility model takes for solving the technical problem is:

A comprehensive utilization system for aquaculture manure, including a manure collection unit, a solid-liquid separation unit, an anaerobic fermentation unit, a biogas utilization unit and a biogas slurry utilization unit, the manure collection unit includes a filter tank and a septic tank, from The feces and sewage discharged from the farm flow into the septic tank through the filter tank; the solid-liquid separation unit includes a solid-liquid separator, a buffer tank and an organic fertilizer treatment device, and the manure in the septic tank passes through After being treated by the solid-liquid separator, the solid matter is processed by the organic fertilizer treatment device, and the liquid flows into the buffer tank; the anaerobic fermentation unit is a multi-stage anaerobic reaction device, including a primary anaerobic reaction tank and a secondary anaerobic reaction tank. Reaction tank, the fecal water in the buffer pool is lifted by the lift pump and then enters the primary anaerobic reaction tank and the secondary anaerobic reaction tank; the biogas utilization unit includes a biogas cabinet, a biogas purification device and a biogas power generation device, The biogas produced in the primary anaerobic reaction tank and the secondary anaerobic reaction tank enters the biogas cabinet through the gas collection pipe, and the biogas output from the biogas cabinet is purified by the biogas purification device and then input to the biogas power generation device The biogas slurry utilization unit includes a biogas slurry storage tank, farmland irrigation equipment and forestry irrigation equipment, and the biogas slurry produced in the first-stage anaerobic reaction tank and the second-stage anaerobic reaction tank flows into the biogas slurry through the biogas slurry transportation pipeline In the liquid storage tank, the biogas slurry in the biogas slurry storage tank flows into the farmland irrigation device and the forestry irrigation device for utilization according to the needs.

A first ring-shaped disinfection device is arranged around the filter tank, and a high-temperature and oxidation-resistant filter tank plastic protective layer is arranged above the filter tank; a second ring-shaped disinfection device is arranged around the septic tank, and a second ring-shaped disinfection device is installed above the septic tank. There is a high temperature and oxidation resistant septic tank plastic protective layer; the buffer pool is surrounded by a third ring-shaped disinfection device, and a high temperature and oxidation resistant buffer tank plastic protective layer is arranged above the buffer pool.

The multistage anaerobic reaction device is three or more anaerobic reaction tanks.

The utility model adopts solid-liquid separation technology and anaerobic fermentation technology, firstly separates feces and sewage into dry dung and dung water, and the dry dung is processed into organic fertilizer, which can directly fertilize crops and trees, and the dung water passes through Oxygen fermentation produces biogas and biogas slurry. Biogas can be used to generate electricity and biogas slurry can be used to irrigate farmland and trees.

The utility model is provided with a first ring-shaped disinfection device around the filter tank, and a high-temperature and oxidation-resistant filter tank plastic protective layer is arranged above the filter tank; a second ring-shaped disinfection device is arranged around the septic tank. A high temperature and oxidation resistant septic tank plastic protective layer is installed on the side; a third ring-shaped disinfection device is installed around the buffer pool, and a high temperature and oxidation resistant buffer tank plastic protective layer is installed above the buffer pool. This can effectively prevent waste gas from being discharged into the atmosphere and cause secondary pollution, which is in line with the corporate development concept of environmental protection and pollution-free.

The difference between the manure comprehensive utilization system of the utility model and the general waste water treatment system is that: not only the manure and sewage are fermented to produce biogas, but also undergo solid-liquid separation to produce organic fertilizer, and avoid the secondary waste gas generation The possibility of pollution, so that the waste can be effectively and fully reused, and the comprehensive utilization rate can be improved.

The positive beneficial effect of the utility model is as follows:

1. The utility model makes solids into organic fertilizer, biogas is used to generate electricity, and biogas slurry is used to irrigate farmland and trees, so that waste can be effectively and fully reused, and the comprehensive utilization rate is improved.

2. The utility model fundamentally solves the problem of large-scale aquaculture manure and sewage treatment, and realizes the maximization and rationalization of clean production and waste utilization.

3. The utility model avoids the possibility of secondary pollution caused by exhaust gas, conforms to the production concept of environmental protection and pollution-free, and is worth popularizing.

Description of drawings:

Fig. 1 is the structural schematic diagram of the utility model.

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is further explained and illustrated:

Referring to Figure 1, a system for comprehensive utilization of manure and sewage in aquaculture includes a manure collection unit, a solid-liquid separation unit, an anaerobic fermentation unit, a biogas utilization unit and a biogas slurry utilization unit.

The excrement collection unit includes a filter tank 2 and a cesspool 3, and the fecal water 1 discharged from the farm flows into the cesspool 3 through the filter tank 2;

The solid-liquid separation unit includes a solid-liquid separator 4, a buffer tank 6 and an organic fertilizer treatment device 5. After the manure in the septic tank 3 is treated by the solid-liquid separator 4, the solid matter is processed by the organic fertilizer treatment device 5, and the liquid is processed by the organic fertilizer treatment device 5. Flow into the buffer pool 6;

The anaerobic fermentation unit is a multi-stage anaerobic reaction device, including a primary anaerobic reaction tank 8 and a secondary anaerobic reaction tank 9. The feces and sewage in the buffer tank 6 are lifted by the lift pump 7 and then enter the primary anaerobic reaction in turn. In tank 8 and secondary anaerobic reaction tank 9;

The biogas utilization unit includes a biogas cabinet 11, a biogas purification device 12, and a biogas power generation device 13. The biogas produced in the primary anaerobic reaction tank 8 and the secondary anaerobic reaction tank 9 enters the biogas cabinet 11 through the gas collection pipeline 10, from The biogas output from the biogas cabinet 11 is purified by the biogas purification device 12 and then input into the biogas power generation device 13;

The biogas slurry utilization unit includes a biogas slurry storage pond 15, a farmland irrigation device 16 and a forestry irrigation device 17. The biogas slurry produced in the primary anaerobic reaction tank 8 and the secondary anaerobic reaction tank 9 flows into the biogas slurry through the biogas slurry transportation pipeline 14. In the liquid storage pond 15, the biogas slurry in the biogas slurry storage pond 15 flows into the farmland irrigation device 16 and the forestry irrigation device 17 for utilization according to needs.

A first annular disinfection device 18 is arranged around the filter tank 2, and an anti-high temperature and oxidation-resistant filter tank plastic protective layer is arranged above the filter tank 2; The top of the pool 3 is provided with a high-temperature and oxidation-resistant septic tank plastic protective layer; a third annular disinfection device 20 is arranged around the buffer pool 6, and a high-temperature and oxidation-resistant buffer pool plastic protective layer is provided above the buffer pool 6, so that It can effectively prevent waste gas from being discharged into the atmosphere and cause secondary pollution, which is in line with the enterprise development concept of environmental protection and pollution-free.

According to needs, the multi-stage anaerobic reaction device can be equipped with three or more anaerobic reaction tanks to carry out multi-stage anaerobic fermentation reactions.

The utility model not only ferments feces and sewage to produce biogas and biogas liquid, but also undergoes solid-liquid separation to produce organic fertilizer, and avoids the possibility of secondary pollution caused by waste gas, so that waste can be effectively and fully reused, improving comprehensive utilization.

Claims (3)

1. the dirty utilization system of aquaculture excrement, comprise excrement dirty collector unit, solid-liquid separation unit, anaerobically fermenting unit, biogas utilization unit and natural pond liquid range site, it is characterized in that: the dirty collector unit of described excrement comprises filtering basin (2) and stercoroma pond (3), and the excrement sewage (1) ejected from plant flow into stercoroma pond (3) by described filtering basin (2); Described solid-liquid separation unit comprises solid-liquid separating machine (4), Buffer Pool (6) and fertilizer treatment unit (5), after excrement soiled ends in described stercoroma pond (3) crosses solid-liquid separating machine (4) process, solid matter processes through fertilizer treatment unit (5), and liquid flow in Buffer Pool (6); Described anaerobically fermenting unit is multistage anaerobic reaction unit, comprise one-level anaerobic reaction-pot (8) and secondary anaerobic retort (9), the excrement sewage in described Buffer Pool (6) enters into one-level anaerobic reaction-pot (8) and secondary anaerobic retort (9) successively after lift pump (7) promotes; Described biogas utilization unit comprises biogas cabinet (11), methane purifying device (12) and biogas electricity generation apparatus (13), described one-level anaerobic reaction-pot (8) and inner the produced biogas of secondary anaerobic retort (9) enter in described biogas cabinet (11) through getter pipeline (10), export the biogas come and be input in biogas electricity generation apparatus (13) after methane purifying device (12) purification from biogas cabinet (11); Described natural pond liquid range site comprises natural pond liquid storage pool (15), farmland irrigating device (16) and forestry irrigation rig (17), described one-level anaerobic reaction-pot (8) and inner the produced natural pond liquid of secondary anaerobic retort (9) flow in natural pond liquid storage pool (15) through natural pond liquid transport pipe (14), as required, the natural pond liquid of natural pond liquid storage pool (15) flows into respectively in farmland irrigating device (16) and forestry irrigation rig (17) and utilizes.

2. the dirty utilization system of aquaculture excrement according to claim 1, is characterized in that: described filtering basin (2) surrounding is provided with the first annular sterilizing unit (18), and filtering basin (2) top is provided with high temperature resistance sludge proof filtering basin plastic protective layer; Described stercoroma pond (3) surrounding is provided with the second annular sterilizing unit (19), and stercoroma pond (3) top is provided with high temperature resistance sludge proof stercoroma pond plastic protective layer; Described Buffer Pool (6) surrounding is provided with the 3rd annular sterilizing unit (20), and Buffer Pool (6) top is provided with high temperature resistance sludge proof Buffer Pool plastic protective layer.

3. the dirty utilization system of aquaculture excrement according to claim 1, is characterized in that: described multistage anaerobic reaction unit is the anaerobic reaction-pot of more than three or three.