CN216639208U

CN216639208U - Integrated domestic sewage treatment equipment

Info

Publication number: CN216639208U
Application number: CN202123219369.6U
Authority: CN
Inventors: 陆效军; 杨嘉辉; 黄丽娜
Original assignee: Zhejiang Daren Environmental Protection Technology Co ltd
Current assignee: Zhejiang Daren Environmental Protection Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-31
Anticipated expiration: 2031-12-21

Abstract

Integrated domestic sewage treatment equipment comprises an anaerobic tank, a facultative tank, an aerobic tank, a sedimentation tank, a sand filter and a clean water tank which are sequentially connected, wherein the anaerobic tank is connected with a sewage pipe, a grid is arranged between the sewage pipe and the anaerobic tank, a mixed liquid return pipe is connected between the aerobic tank and the facultative tank, sewage is collected by a sewage pipe network, enters the anaerobic tank after large-particle suspended solids are removed by the grid, is subjected to anaerobic fermentation, then enters the facultative tank for hydrolytic acidification reaction to improve subsequent biodegradability, then enters the aerobic tank for aerobic biochemical treatment to remove ammonia nitrogen and organic matters, wherein the mixed liquid return pipe is subjected to denitrification to remove total nitrogen in water, then flows into a reaction tank, the reaction tank is added with a coagulant by a dosing device to remove total phosphorus, then passes through the sedimentation tank for mud-water separation, and then further removes the sludge inside through the sand filter, and finally, the wastewater enters a clean water tank, and a disinfectant is added into the clean water tank to remove fecal escherichia coli in the water.

Description

Integrated domestic sewage treatment equipment

Technical Field

The utility model relates to integrated domestic sewage treatment equipment.

Background

The amount of domestic sewage discharged from rural areas varies considerably. Rural domestic sewage mainly comprises kitchen water, septic tank water, laundry water, culture wastewater and the like, main pollutants of the rural domestic sewage are organic matters such as cellulose, starch, sugar, fat protein and the like, particularly, the content of nitrogen and phosphorus is high, and a large amount of sewage is discharged into the environment, so that water eutrophication is easily caused, and the ecological environment is influenced. The existing rural domestic sewage treatment modes mainly comprise anaerobic fermentation treatment, wetland treatment, oxidation ditch, A/O biochemical treatment, A2/O biochemical treatment and the like, but the defects of the treatment modes are obvious, the occupied area is large, the treatment effect is unstable, the sludge production amount is large, the later-stage operation and maintenance are complex and the like.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides integrated domestic sewage treatment equipment.

The purpose of the utility model can be realized by the following technical scheme:

integrated form integration domestic sewage treatment equipment, including the anaerobism pond, facultative tank, good oxygen pond, sedimentation tank, sand filter and the clean water basin that connect gradually, the anaerobism pond is connected with the sewer pipe, be equipped with the grid between sewer pipe and the anaerobism pond, be connected with mixed liquid back flow between good oxygen pond and the facultative tank.

The sand filter is equipped with the filter layer, the filter layer includes filter, quartz sand and cobble are installed in the filter top.

And equidistant filter caps are arranged on the filter plates.

An aeration pipe is arranged in the aerobic tank.

The lower end of the aeration pipe is provided with an adjustable bracket.

The anaerobic tank, the facultative tank, the aerobic tank, the sedimentation tank, the sand filter tank and the clean water tank are all provided with vent pipes, and filter screens are arranged in the vent pipes.

Has the advantages that:

the sewage enters an anaerobic tank after large-particle suspended matters are removed through a grating through a sewage pipe network for anaerobic fermentation, then enters a facultative tank for hydrolytic acidification reaction to improve subsequent biodegradability, then enters an aerobic tank for aerobic biochemical treatment to remove ammonia nitrogen and organic matters, wherein mixed liquid flows back for denitrification to remove total nitrogen in water, and then flows into a reaction tank, the reaction tank is added with a coagulant through a dosing device to remove total phosphorus, then is subjected to mud-water separation through a sedimentation tank, then further removes sludge in the sedimentation tank, finally enters a clear water tank, added with a disinfectant in the clear water tank to remove excrement in the water, and the effluent of escherichia coli stably reaches the first-level A standard GB18918-2002 of pollutant discharge Standard of urban Sewage treatment plant.

Drawings

FIG. 1 is a water level elevation diagram of the present invention.

FIG. 2 is a top view of the present invention.

Fig. 3 is an enlarged view of a portion a.

Fig. 4 is a cross-sectional view of 5-5.

FIG. 5 is a schematic view of a filter plate structure.

Fig. 6 is a schematic view of a perforated aerator pipe installation structure.

The anaerobic tank 1, the facultative tank 2, the aerobic tank 3, the sedimentation tank 4, the sand filter 5, the clean water tank 6, the mixed liquid return pipe 7, the quartz sand 8, the pebbles 9, the filter plate 10, the filter cap 11, the aeration pipe 12, the adjustable bracket 13 and the blow-down pipe 14.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

As shown in the figure, the integrated domestic sewage treatment equipment comprises an anaerobic tank 1, a facultative tank 2, an aerobic tank 3, a sedimentation tank 4, a sand filter tank 5 and a clean water tank 6 which are connected in sequence, wherein the anaerobic tank 1 is connected with a sewage pipe, a grid is arranged between the sewage pipe and the anaerobic tank 1, a mixed liquid return pipe 7 is connected between the aerobic tank 3 and the facultative tank 2, sewage is collected by a sewage pipe network, large-particle suspended matters are removed by the grid, then the sewage enters the anaerobic tank 1 for anaerobic fermentation, then enters the facultative tank 2 for hydrolytic acidification reaction to improve subsequent biodegradability, then enters the aerobic tank 3 for aerobic biochemical treatment to remove ammonia nitrogen and organic matters, wherein the mixed liquid returns for denitrification to remove total nitrogen in water, then flows into a reaction tank, the reaction tank adds coagulant through a dosing device to remove total phosphorus, and then carries out mud-water separation through the sedimentation tank 4, and further removing the sludge in the sewage water by a sand filter 5, finally feeding the sewage water into a clean water tank 6, adding a disinfectant into the clean water tank 6 to remove fecal escherichia coli in the water, wherein the effluent stably reaches the first-class A standard GB18918-2002 of pollutant discharge Standard for urban Sewage treatment plants.

The sand filter 5 is equipped with the filter layer, the filter layer includes filter 10, quartz sand 8 and cobble 9 are installed in filter 10 top, filter 10 passes through the bolt fastening, and filter 10 both sides are equipped with the angle steel.

The filter plate 10 is provided with equidistant filter caps 11, the filter caps 11 are a steam water back flushing device of a water distribution system at the bottom of the filter tank, and the device can effectively flush out sludge impurities in the filter tank and ensure the normal operation of water quality and water quantity of the filter tank

The aeration pipe 12 is arranged in the aerobic tank 3, and the filter material can be in a better fluidization state by arranging the aeration pipe 12 at the bottom of the tank, so that the purification effect of sewage is improved.

The lower end of the aeration pipe 12 is provided with an adjustable bracket 13, the height of the aeration pipe 12 can be adjusted according to the requirement, and the adjustable bracket 13 can use the existing technology on the market, so that the description is not excessive.

Anaerobic tank 1, facultative tank 2, good oxygen pond 3, sedimentation tank 4, sand filter 5 all are equipped with blow-down pipe 14 with clean water basin 6, be equipped with the filter screen in the blow-down pipe 14, discharge convenient to overhaul through blow-down pipe 14 when the operation goes wrong, the filter screen prevents to pack the loss by the play water kneck of blow-down pipe 14.

Claims

1. Integrated form integration sewage treatment device, its characterized in that: including anaerobic tank (1), facultative tank (2), good oxygen pond (3), sedimentation tank (4), sand filter (5) and clean water basin (6) that connect gradually, anaerobic tank (1) is connected with the sewer pipe, be equipped with the grid between sewer pipe and anaerobic tank (1), be connected with mixed liquid back flow (7) between good oxygen pond (3) and facultative tank (2).

2. The integrated domestic sewage treatment apparatus according to claim 1, wherein: the sand filter (5) is provided with a filter layer, the filter layer comprises a filter plate (10), quartz sand (8) and pebbles (9), and the quartz sand (8) and the pebbles (9) are arranged above the filter plate (10).

3. The integrated domestic sewage treatment apparatus according to claim 2, wherein: and filter caps (11) with equal intervals are arranged on the filter plates (10).

4. The integrated domestic sewage treatment apparatus according to claim 1, wherein: an aeration pipe (12) is arranged in the aerobic tank (3).

5. The integrated domestic sewage treatment apparatus according to claim 4, wherein: the lower end of the aeration pipe (12) is provided with an adjustable bracket (13).

6. The integrated domestic sewage treatment apparatus according to claim 1, wherein: the anaerobic tank (1), the facultative tank (2), the aerobic tank (3), the sedimentation tank (4), the sand filter (5) and the clean water tank (6) are all provided with an emptying pipe (14), and a filter screen is arranged in the emptying pipe (14).