A no sewage rural human and livestock shared septic tank device

Abstract

The utility model relates to a kind of no sewage official rural human and livestock shared septic tank device.The utility model uses technical scheme: including first grid sedimentation fermentation tank, second grid depth anaerobic tank, third grid liquid storage tank, it is characterized by, still including fourth grid ecological treatment tank, third grid liquid storage tank is positioned on the edge upper portion and is equipped with pipeline intercommunication fourth grid ecological treatment tank, the bottom of fourth grid ecological treatment tank is paved anaerobic filter layer, anaerobic filter layer is broken stone and ceramsite, fourth grid ecological treatment tank is open-air structure, upper portion is ecological floating bed, first grid sedimentation fermentation tank is equipped with two, livestock manure fermentation tank and toilet sewage fermentation tank are side by side respectively.The utility model is provided with livestock manure fermentation tank and toilet sewage fermentation tank connected with toilet, avoid livestock poultry circle flushing water and human excrement mixing in early fermentation stage, avoid the influence of domestic grey water on sedimentation fermentation.

Description

Technical Field

[0001] This utility model relates to a drainage-free rural septic tank device for both humans and livestock. Background Technology

[0002] In rural areas, three-compartment septic tanks are primarily used to treat toilet waste. Normally, wastewater from these tanks needs to be transported to a sewage treatment plant for processing before being discharged. However, in rural areas far from towns, especially in hilly and mountainous regions, access to municipal sewage systems is often unavailable. The distance between households is also considerable, making unified village-wide wastewater collection and treatment economically impractical. Therefore, in many cases, wastewater and household wastewater are directly discharged into dug septic tanks for fermentation and accumulation. The water can only be treated through evaporation and penetration into the soil.

[0003] Small amounts of manure and sewage can be treated by fermentation in manure pits, but this cannot effectively accommodate domestic greywater from kitchens, laundry, and bathing. The production of domestic greywater is large, especially in recent years as living conditions have improved, with increased use of washing machines, showers, and kitchens. In order to improve the living environment, livestock and poultry farmers use a lot of clean water to wash their pens, resulting in a large amount of domestic greywater and livestock washing water.

[0004] The composition of domestic greywater and sewage differs from that of livestock manure. Direct mixing and fermentation in rural areas can lead to slow fermentation and cause sedimentation fermentation tanks to fill up quickly.

[0005] Traditional three-chamber septic tanks cannot accommodate large amounts of wastewater. Wastewater discharged into the septic tank will quickly fill it up, preventing effective fermentation. This significantly reduces the treatment efficiency of the three-chamber septic tank and leads to problems such as direct discharge of sewage. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a wastewater-free rural septic tank device for both humans and livestock, which separates the treatment of sewage and domestic ashwater into different treatment tanks, reducing the difficulty of the initial fermentation process.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model relates to a septic tank device for rural people and livestock without drainage, comprising a first sedimentation and fermentation tank, a second deep anaerobic tank, and a third liquid storage tank. It is characterized by further including a fourth ecological treatment tank. The third liquid storage tank has a pipe connecting it to the fourth ecological treatment tank at its upper edge. The bottom of the fourth ecological treatment tank is covered with an anaerobic filter layer composed of gravel and ceramsite. The fourth ecological treatment tank is an open-air structure with an ecological floating bed on top, planted with pollution-tolerant plants. The first sedimentation fermentation tank consists of two parallel tanks: a livestock manure fermentation tank and a toilet waste fermentation tank. The livestock manure fermentation tank and the toilet waste fermentation tank are connected at the bottom. The livestock manure fermentation tank and the toilet waste fermentation tank are connected to the second deep anaerobic tank at the top via channels. The livestock manure fermentation tank extends outward with a slag discharge hole located on its side. The toilet waste fermentation tank is connected to the toilet bowl pipe via a pipe. The first sedimentation fermentation tank, the second deep anaerobic tank, and the third storage tank are all equipped with covers.

[0008] According to the aforementioned rural septic tank device for both humans and livestock without sewage, the fourth compartment of the ecological treatment tank has a volume of more than 3 cubic meters and is equipped with an extraction pipe. The extraction pipe is connected to an extraction water pump, which is externally connected when pumping water. The extraction pipe extends to the bottom of the fourth compartment of the ecological treatment tank and a filter screen is installed at the pipe opening.

[0009] According to the aforementioned wastewater-free rural septic tank device for both humans and livestock, a safety fence and warning signs have been added to the fourth compartment of the ecological treatment tank.

[0010] According to the aforementioned rural septic tank device without sewage, the domestic sewage pipes are connected to the toilet and kitchen sewage pipes and lead into the second deep anaerobic tank.

[0011] According to the aforementioned septic tank device for rural people and livestock without sewage, a rigid slag discharge pipe that extends deep into the bottom is installed at the slag discharge hole. The slag discharge pipe opening is arranged horizontally at the bottom of the livestock manure fermentation tank. A spiral discharge mechanism is installed in the slag discharge pipe, and a power motor is installed outside the slag discharge pipe extending from the spiral discharge mechanism.

[0012] This utility model sets up a livestock manure fermentation tank and a toilet sewage fermentation tank connected to the toilet, which avoids the mixing of livestock and poultry pen flushing water with human manure in the early stage of fermentation and avoids the impact of domestic ash water on sedimentation and fermentation. A fourth ecological treatment pond was set up as a receiving and discharge space for the treated water, ensuring that the wastewater can be effectively disinfected again before discharge, thus reducing the environmental impact of external evaporation and infiltration ditches. Attached Figure Description

[0013] Figure 1 This is an overall layout diagram of the present invention. Figure 2 This is a partial cross-sectional view of the present invention. Figure 3 This is a side sectional view of the present invention.

[0014] Attached reference numerals: 1 First sedimentation fermentation tank, 11 Livestock manure fermentation tank, 12 Toilet sewage fermentation tank, 13 Slag discharge hole, 14 Connecting pipe, 15 Collection port, 2 Second deep anaerobic tank, 3 Third liquid storage tank, 4 Fourth ecological treatment tank, 41 Filling with crushed stone or ceramsite, 42 Ecological floating bed, 5 Toilet, 51 Toilet toilet pipe, 6 Kitchen, 61 Kitchen sewage pipe, 7 Rigid slag discharge pipe, 71 Spiral discharge structure, 72 Drive motor, 73 Inclined discharge port, 8 Cover plate. Detailed Implementation

[0015] This utility model relates to a septic tank device for rural people and livestock without drainage, comprising a first sedimentation and fermentation tank 1, a second deep anaerobic tank 2, a third liquid storage tank 3, and a fourth ecological treatment tank 4. The third liquid storage tank 3 is connected to the fourth ecological treatment tank 4 by a pipe at the upper edge. The bottom of the fourth ecological treatment tank 4 is covered with an anaerobic filter layer, which is composed of gravel and ceramsite. The fourth ecological treatment tank 4 is an open-air structure with an ecological floating bed 42 on top, planted with pollution-tolerant plants.

[0016] Specifically, the first sedimentation fermentation tank 1 is divided into two sections: a livestock manure fermentation tank 11 and a toilet waste fermentation tank 12, which are arranged side by side and connected at the bottom. The bottom pipe is used to transfer the fermented sediment from the toilet waste fermentation tank 12 into the livestock manure fermentation tank 11 for unified extraction.

[0017] Since the animal manure in the livestock manure fermentation tank 11 and the organic matter in the domestic water in the toilet sewage fermentation tank 12 are different, and the solid particulate matter in the livestock manure fermentation tank 11 is relatively large, separating them can accelerate the introduction of corresponding bacteria, fungi and protozoa and other microorganisms into a single type of manure or sewage, so as to improve the decomposition efficiency.

[0018] Since livestock produce a large amount of manure, which is mainly composed of plant fiber, it is necessary to introduce microorganisms that can process plant fiber quickly in order to accelerate the fermentation process.

[0019] The types of bacteria introduced into animal manure septic tanks mainly include lactic acid bacteria, yeast, photosynthetic bacteria, fermentative filamentous bacteria, pseudomonads, Bacillus subtilis, and actinomycetes.

[0020] Anaerobic bacteria, such as nitrifying bacteria, Bacillus, and Pseudomonas, are added to domestic sewage. Bacillus can decompose large organic molecules such as proteins and fats in domestic sewage, such as kitchen wastewater. Pseudomonas has a strong ability to degrade recalcitrant substances such as phenols and cyanides in detergents.

[0021] The upper part is provided with a channel connecting the second deep anaerobic tank 2. The livestock manure fermentation tank 11 extends outward to the slag discharge hole 13, which is located on the side of the livestock manure fermentation tank 11. The toilet sewage fermentation tank 12 is provided with a pipe connected to the toilet toilet pipe 51. The first sedimentation fermentation tank 1, the second deep anaerobic tank 2 and the third liquid storage tank 3 are provided with covers.

[0022] The fourth ecological treatment tank 4 is equipped with an overflow outlet, which leads to a farmland ditch. Domestic sewage pipes are connected to the toilet 5 and kitchen drain pipes, which then lead to the second deep anaerobic tank 2.

[0023] A rigid slag discharge pipe extending deep into the bottom is installed at the slag discharge hole 13. The slag discharge pipe opening is arranged horizontally at the bottom of the livestock manure fermentation tank 11. A spiral discharge mechanism is installed in the slag discharge pipe, and a drive motor with a reducer is installed outside the slag discharge pipe to drive the spiral discharge mechanism. The drive motor speed is between several hundred and several thousand revolutions per minute. The speed is reduced by the reducer, and the torque is increased to drive the rotation of the spiral discharge mechanism.

[0024] Sediment accumulates at the bottom of the livestock manure fermentation tank 11 and flows into the pipe through the horizontal opening at the bottom of the rigid slag discharge pipe. The rotating spiral discharge structure, through rotating continuous blades, moves the sediment from the bottom to the top and discharges it through the inclined discharge port on the side. The sediment is then transferred using a suction pump or a transfer vehicle.

[0025] The septic tank is sealed with a cover, and the livestock manure fermentation tank 11 has a reserved collection port and is equipped with a ventilation pipe to prevent biogas accumulation. Except for the fourth ecological treatment tank, this device can be installed inside the livestock pen, and the livestock manure is flushed into the collection port and enters the livestock manure fermentation tank 11.

[0026] The toilet wastewater fermentation tank 12 can decompose organic matter such as grease and detergent contained in domestic greywater. The supernatant in the third storage tank can be directly discharged into the fourth tank.

[0027] The anaerobic filtration layer at the bottom of the fourth ecological treatment tank is filled with filter media such as gravel and ceramsite to adsorb grease and suspended solids. The upper ecological floating bed is planted with pollution-tolerant plants such as calamus and water celery to absorb nitrogen and phosphorus pollutants. The fourth ecological treatment tank combines anaerobic filtration and plant absorption to treat the water as effectively as possible before discharge, reducing environmental pollution.

[0028] The overflow water from the fourth ecological treatment tank can be reused for toilet flushing or as flushing water for livestock manure, achieving recycling. During recycling, a transfer tank is added, and disinfectant is added regularly before reuse.

[0029] The key points for constructing this septic tank are as follows: A pit approximately 1.5 meters deep is excavated, and then the complete septic tank structure is built. The total volume should be ≥2m³, designed for a family of 5. The fourth compartment, the ecological treatment tank, should account for 30%-40% of the total septic tank volume. The daily production of domestic greywater is calculated at 50L / person, requiring a hydraulic retention time of ≥72 hours.

[0030] The septic tank structure uses a brick-concrete structure with cement plastering, or prefabricated PE plastic modules to prevent leakage and groundwater contamination. Toilets are independently connected to the toilet sewage fermentation tank, while kitchen and shower sewage pipes connect to the second deep anaerobic tank. This separates black water from grey water from the sewage, and simultaneously performs anaerobic fermentation in the second deep anaerobic tank, decomposing organic matter in the water.

[0031] The drainage pipes for the kitchen and shower have a slope of 20° to prevent blockage. The fourth ecological treatment tank (4) has a volume greater than 3 cubic meters and is equipped with an extraction pipe connected to a water pump. The water pump is externally connected for pumping. The extraction pipe extends to the bottom of the fourth ecological treatment tank (4), and a filter screen is installed at the pipe opening. A safety fence and warning signs are added to the fourth ecological treatment tank (4).

[0032] Instructions for use 1. Regular sludge removal: Clean the first compartment of sediment once a year, and pump out the third compartment of sewage 1-2 times a year.

[0033] 2. Filter media replacement: The fourth filter media should be replaced every 2 years, and the plants should be harvested regularly.

[0034] 3. Disinfection treatment: Quicklime can be added for disinfection during the rainy season or the peak of an epidemic.

Claims

1. A septic tank device for rural people and livestock without sewage system, comprising a first sedimentation and fermentation tank (1), a second deep anaerobic tank (2), and a third storage tank (3), characterized in that, It also includes a fourth ecological treatment tank (4), and a pipe is installed at the upper edge of the third storage tank (3) to connect to the fourth ecological treatment tank (4). An anaerobic filter layer is laid at the bottom of the fourth ecological treatment tank (4), which is composed of gravel and ceramsite. The fourth ecological treatment tank (4) is an open-air structure with an ecological floating bed (42) on top, where pollution-resistant plants are planted. The first sedimentation fermentation tank (1) is set up as two, namely the livestock manure fermentation tank (11) and the toilet sewage fermentation tank (12) side by side. The livestock manure fermentation tank (11) and the toilet sewage fermentation tank (12) are connected at the bottom. The livestock manure fermentation tank (11) and the toilet sewage fermentation tank (12) are respectively provided with channels at the upper position to connect to the second deep anaerobic tank (2). The livestock manure fermentation tank (11) extends outward to the slag discharge hole (13), which is located on the side of the livestock manure fermentation tank (11). The toilet sewage fermentation tank (12) is provided with a pipe connected to the toilet (5) toilet pipe. The first sedimentation fermentation tank (1), the second deep anaerobic tank (2) and the third liquid storage tank (3) are provided with covers.

2. The sewage-free rural septic tank device for both humans and livestock as described in claim 1, characterized in that, The fourth ecological treatment tank (4) has a volume of more than 3 cubic meters and is equipped with an extraction pipe. The extraction pipe is connected to an extraction water pump, which is externally connected when pumping water. The extraction pipe extends to the bottom of the fourth ecological treatment tank (4) and a filter screen is installed at the pipe opening.

3. The rural septic tank device for both humans and livestock without sewage as described in claim 1, characterized in that, Add safety fences and warning signs to the fourth ecological treatment pool (4).

4. The rural septic tank device for both humans and livestock without sewage as described in claim 1, characterized in that... The sewage pipe connects the toilet (5) and the kitchen drain pipe into the second deep anaerobic tank (2). The slope of the kitchen drain pipe and the domestic sewage pipe is 20°.

5. The rural septic tank device for both humans and livestock without sewage as described in claim 1, characterized in that, The volume of the fourth ecological treatment tank (4) accounts for 30%-40% of the total volume of the septic tank.

6. The rural septic tank device for both humans and livestock without sewage as described in claim 1, characterized in that, A rigid slag discharge pipe (7) is installed at the slag discharge hole (13) and extends to the bottom. The slag discharge pipe opening is arranged horizontally at the bottom of the livestock manure fermentation tank (11). A spiral discharge mechanism is installed in the slag discharge pipe, and a drive motor is installed outside the spiral discharge structure.

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