CN203284290U - Domestic sewage purification tank treatment system - Google Patents

Abstract

A domestic sewage purification tank treatment system, the domestic sewage purification tank treatment system includes a septic tank, a water purification tank, a water purification lift pump, a water storage tank, and a water purification lift pump electrically connected to each other through connecting pipes. A solar power supply device; four partitions are arranged in sequence in the purification tank to form anaerobic collection area, anaerobic nitrification area, contact aeration area, clear water precipitation area and disinfection area in sequence in the purification tank. The utility model can solve the problems that the treated water in the existing septic tanks cannot be directly discharged and the water resources cannot be recycled.

Description

Domestic sewage purification tank treatment system

technical field

The utility model relates to the technical field of sewage treatment, in particular to a domestic sewage purification tank treatment system for in-depth treatment and recycling of domestic sewage.

Background technique

At present, the existing domestic sewage is mainly treated by septic tanks, the treatment effect is not ideal, and the treated water cannot be directly discharged or recycled, especially in rural areas of Ningxia and in many places where the immigrants gather in Ningxia, domestic sewage treatment facilities are not perfect or do not exist at all. Domestic sewage treatment facilities, domestic sewage treatment is unqualified or directly discharged without treatment, polluting rivers and farmland, seriously affecting the rural living environment. At the same time, direct discharge of sewage without effective recycling is also a waste of water resources.

Contents of the invention

The purpose of the utility model is to overcome the problems that the treated water in the existing septic tanks cannot be discharged directly and the water resources cannot be recycled.

The utility model provides a domestic sewage purification tank treatment system. The domestic sewage purification tank treatment system includes a septic tank, a water purification tank, a water purification lifting pump, a water storage tank and a water purification tank connected in sequence by connecting pipes. A solar power supply device electrically connected to the lifting pump; four partitions are arranged in sequence in the purification tank to form anaerobic collection area, anaerobic nitrification area, contact aeration area, clear water precipitation area and disinfection area in sequence in the purification tank. district.

Preferably, the purification tank also includes a sludge return system located at the bottom of the purification tank, the sludge return system is a three-port system consisting of a sludge return pump and a pipeline, and the three ports are respectively connected to The ports of the sludge return system on the contact aeration area, the clear water sedimentation area and the anaerobic collection area are connected.

Preferably, the purification tank also includes a nitrification liquid return system at the top of the purification tank, the nitrification liquid return system is a two-port system consisting of a nitrification liquid return pump and a pipeline, and the two ports are respectively connected to The contact aeration area is connected with the port of the nitrifying liquid return system on the anaerobic collection area.

Preferably, the septic tank is successively divided into anaerobic zone, aerobic zone and sedimentation zone by a divider with a water outlet in the middle and a divider with an overflow weir at the upper end, and the top of the anaerobic zone is provided with an inlet The top of the inner wall of the aerobic zone is provided with evenly distributed aeration heads, and the middle part of the right side of the sedimentation zone is provided with a water outlet.

Preferably, the horizontal installation position of the water storage tank is higher than the purification tank.

Using the above domestic sewage purification tank treatment system, domestic sewage enters the septic tank through the inlet pipe at the top of the septic tank for purification, and then enters the purification tank through the connecting pipe connected to the water outlet of the septic tank and the water inlet of the purification tank for purification The clean water purified by the purification tank enters the clean water lifting pump through the connecting pipe connected with the water outlet of the purification tank and the water inlet of the clean water lifting pump, and the clean water is passed through the outlet of the clean water lifting pump and the storage by the clean water lifting pump The connecting pipe connected to the water inlet of the pool is lifted to the reservoir, so that the treated sewage can be directly discharged or recycled. The recovered clean water can be used for landscape water or irrigation of farmland and vegetation.

Description of drawings

Figure 1 is a flow chart of the domestic sewage purification tank treatment system.

Figure 2 is a schematic diagram of the planar structure of the septic tank.

Figure 3 is a schematic diagram of the planar structure of the purification tank.

In the figure: domestic sewage purification tank treatment system 10, septic tank 11, anaerobic zone 111, aerobic zone 112, sedimentation zone 113, water outlet 114, aeration head 115, overflow weir 116, water inlet 117, water outlet 118, purification tank 12, anaerobic collection area 121, anaerobic nitrification area 122, contact aeration area 123, clear water precipitation area 124, disinfection area 125, sludge return system 126, nitrifying liquid return system 127, water inlet 128, outlet Water port 129, reservoir 13, connecting pipe 15, solar power supply device 16, clean water lifting pump 17.

Detailed ways

Please refer to Fig. 1, Fig. 2 and Fig. 3, the domestic sewage purification tank treatment system 10 includes a septic tank 11, a purification tank 12, a clean water lift pump 17, and a storage tank whose horizontal position is higher than that of the purification tank 12, which are connected in sequence with a connecting pipe 15. The pool 13 and the solar power supply device 16 electrically connected with the clean water lift pump 17 .

The septic tank 11 is divided into the anaerobic zone 111, the aerobic zone 112 and the sedimentation zone 113 successively by the clapboard with the water outlet 114 in the middle and the clapboard with the overflow weir 116 at the upper end. The water inlet 117 is provided with uniformly distributed aeration heads 115 on the upper end of the inner wall of the aerobic zone 112 , and a water outlet 118 is provided on the upper right side of the sedimentation zone 113 . The purification tank 12 includes an anaerobic collection area 121, an anaerobic nitrification area 122, a contact aeration area 123, a clear water precipitation area 124, a disinfection area 125 and a nitrification liquid return system at the top of the purification tank 12, which are separated by four partitions 127 and the sludge return system 126 at the bottom of the purification tank 12. A water inlet 128 is provided at the middle position on the left side of the anaerobic collection area 121 , and a water outlet 129 is provided at the middle position on the right side of the disinfection area 125 . The purification tank 12 is also provided with two circular windows for observing the operation of the purification tank 12 .

The septic tank 11 and the purification tank 12 are communicated by the water outlet 118 of the septic tank 11 and the water inlet 128 of the purification tank 12 by the connecting pipe 15; The water inlet 129 is communicated with the water inlet of the clean water lift pump 17; the clean water lift pump 17 and the reservoir 13 are communicated by the connecting pipe 15 through the water outlet of the clean water lift pump 17 and the water inlet of the reservoir 13; the clean water lift pump 17 and solar power supply device 16 are electrically connected.

The collected domestic sewage enters the septic tank 11 from the water inlet pipe 14, and anaerobic nitrification is carried out in the first-stage anaerobic zone 111 of the septic tank 11. The solids such as feces decompose and settle due to the nitrification reaction, and most of the solids settle to The bottom of the anaerobic zone 111 of the septic tank undergoes long-term anaerobic fermentation and decomposition, and a small part floats to the water surface, while the liquid in the anaerobic zone 111 flows into the septic tank 11 by itself through the water outlet 114 in the middle of the partition. Level aerobic zone 112. The second-level aerobic zone 112 is an aerobic aeration tank. The aerobic aeration tank further decomposes the sewage decomposed by anaerobic nitrification and acidification through aerobic microorganisms, and degrades a large amount of dissolved organic matter. The aerobically treated water enters the tertiary sedimentation zone 113 of the septic tank 11 from the overflow weir 116, and its function is to clarify the mud-water mixture after the aeration treatment, so as to prepare for the sewage to enter the purification tank 12 for treatment. The sewage initially purified by the septic tank 11 enters the anaerobic collection area 121 of the purification tank 12 through the connecting pipe 15, and after performing secondary anaerobic treatment in the anaerobic collection area 121, it enters the anaerobic nitrification area 122 for nitrification treatment. Then enter the contact aeration zone 123 for sufficient oxidation and decomposition treatment, then enter the clean water precipitation zone 124 to precipitate the large particles of impurities after nitrification and oxidation treatment, and then enter the disinfection zone 125 for clean water disinfection treatment. Have reached the standard of the clean water that can be directly discharged, and this clean water is promoted to the reservoir 13 for standby by the clean water lift pump 17, such as being used for landscape water, irrigation of farmland or vegetation, etc. In the process of sewage treatment, the amount of sludge in the contact aeration zone 123 and the clear water precipitation zone 124 is regularly observed through the window. The sludge deposited in the area 123 and the clear water precipitation area 124 is pumped back to the anaerobic collection area 121 for secondary cycle purification; the water level in the contact aeration area 123 is regularly observed through the window, and when the water level reaches the set height, start The nitrifying liquid return system 127 is used to pump the sewage mixed with the nitrifying liquid in the contact aeration area 123 back to the anaerobic collection area 121 to prevent the sewage in the contact aeration area 123 from overflowing into the clear water sedimentation area 124 and pump it back to the anaerobic collection area 121. The sewage containing nitrifying liquid in the anaerobic collection area 121 can improve the nitrogen removal effect of the anaerobic collection area 121 .

This domestic sewage purification tank treatment system not only solves the problems of traditional septic tanks that are difficult to treat domestic sewage, the treatment effect is poor, and the treated water cannot be discharged directly, but also enables water resources to be recycled and improves the efficiency of water resources. Utilization rate can alleviate the problem of water shortage to a certain extent. The domestic sewage purification tank treatment system is powered by solar energy, has low energy consumption, and can be widely used and applied. After popularization and application, it can solve the problems of extensive domestic sewage treatment in the existing rural sewage treatment system, discharge of effluent that is not up to standard, or direct discharge without treatment, which will cause pollution to the rural environment, and can significantly improve the rural living environment. Recycling.

Claims (5)

1. one way of life sewage purifier treatment system, it is characterized in that, described purifying domestic sewage groove treatment system comprises septic tank (11), clean water tank (12), water purification lift pump (17), the water reservoir (13) that is connected successively with pipe connecting (15) and the solar power supply apparatus (16) that is electrically connected with described water purification lift pump (17); Be disposed with four dividing plates in described purification tank (12), to form successively anaerobism collecting region (121), anaerobic nitrification district (122), contact aeration district (123), clear water settling region (124) and sterilizating area (125) in purification tank (12).

2. purifying domestic sewage groove treatment system as claimed in claim 1, it is characterized in that: described purification tank (12) also comprises the sludge reflux system (126) that is positioned at described purification tank (12) bottom, the system of three ports that described sludge reflux system (126) is comprised of sludge reflux pump and pipeline, described three ports are connected with the port of sludge reflux system on described contact aeration district (123), clear water settling region (124) and anaerobism collecting region (121) respectively.

3. purifying domestic sewage groove treatment system as claimed in claim 2, it is characterized in that: described purification tank (12) also comprises the nitrification liquid return-flow system (127) that is positioned at described purification tank (12) top, the system of two ports that described nitrification liquid return-flow system (127) is comprised of nitrification liquid reflux pump and pipeline, described two ports are connected with the port of nitrification liquid return-flow system on described contact aeration district (123) and anaerobism collecting region (121) respectively.

4. purifying domestic sewage groove treatment system as claimed in claim 1, it is characterized in that: described septic tank (11) is divided into anaerobic zone (111), aerobic zone (112) and settling region (113) by middle part successively with the dividing plate that the dividing plate of crossing the mouth of a river (114) and upper end are provided with overflow weir (116), described anaerobic zone (111) top is provided with water-in (117), described aerobic zone (112) inwall top is provided with equally distributed aeration head (115), and described settling region (113) right side central is provided with water outlet (118).

5. purifying domestic sewage groove treatment system as claimed in claim 1, it is characterized in that: the horizontal installation site of described water reservoir (13) is higher than described purification tank (12).

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