CN215855400U

CN215855400U - Wash waste water circulation processing system

Info

Publication number: CN215855400U
Application number: CN202121385092.1U
Authority: CN
Inventors: 李霞; 刘欣儒; 安佳; 孔诗雯; 田泽木
Original assignee: Liaoning University
Current assignee: Liaoning University
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2022-02-18
Anticipated expiration: 2031-06-22

Abstract

The utility model provides a washing wastewater circulating treatment system, which adopts a cross-layer water-saving drainage technology, wherein an upper-layer washing basin is connected with a lower-layer toilet flushing water tank through a pipeline, and the washing wastewater is discharged in a layered, shunting and cross-layer manner through an indoor engineering drainage pipeline by utilizing gravity. A filter screen, a sedimentation tank, a sand filter, a biological activated carbon adsorption tank and a reservoir are sequentially arranged between the upper-layer wash basin and the lower-layer toilet flushing water tank. One layer is not provided with a reservoir, and the reclaimed water adsorbed by the biological activated carbon is pumped into the reservoir at the top layer through a lift pump. The overflow of the settling tank and the sand filter flows into the sewage discharge main pipe. The utility model has reasonable design, effectively recycles waste water such as public washroom drainage, household washing machine drainage, household wash basin drainage and the like adjacent to a washroom, and reasonably utilizes water resources.

Description

Wash waste water circulation processing system

Technical Field

The utility model relates to the field of wastewater recovery, in particular to a washing wastewater circulating treatment system.

Background

According to statistics of relevant data, water resources in China are short, and water supply in more than 400 cities in nearly 700 cities in the country is insufficient all the year round, 110 cities in the cities have serious water shortage, and the daily water shortage is 1600 ten thousand meters³. Therefore, the recycling of water resource is the key to water saving. However, the optimal allocation of water resources in most cities is extremely imperfect, the optimal water is low in use, and the recycling of sewage is neglected. According to statistics, the average reuse rate of daily water in developed countries is 75-85%, while that in China is only 35%.

If sewage generated in life is uniformly discharged to a municipal drainage pipe network, and environmental water and toilet flushing water are both provided by tap water, great waste of water resources can be caused, so that water resource recycling is one of the most effective modes for saving water resources. The waste water from washing is one of the main sources of domestic sewage, belongs to high-quality miscellaneous drainage, and if the waste water is mixed with other domestic sewage for treatment, the treatment difficulty is increased, and the recycling efficiency is low. By utilizing the advantages of the adjacent toilet and the adjacent toilet, the waste water of the toilet can be treated on site for flushing the toilet. The transportation cost is reduced, water resources can be better utilized, and the problem of water resource shortage is relieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of high transportation cost, large investment and the like of the existing reclaimed water treatment, and provides a system for circularly treating the washing wastewater, which is used for circularly treating the reclaimed water in a toilet, improving the reuse rate of tap water and reducing the water consumption.

In order to solve the problems, the technical scheme of the utility model is as follows: the utility model provides a wash waste water cyclic treatment system, including the blowdown dry pipe, upper strata wash basin, lower floor's cistern, lower floor's flushing cistern, top layer cistern and top layer flushing cistern, pass through the pipe connection between upper strata wash basin waste water outlet and the lower floor flushing cistern water inlet, be equipped with the filter screen between upper strata wash basin and the lower floor flushing cistern in proper order, the setting tank, the sand filter, biological activity carbon adsorption tank and cistern, well water behind the biological activity carbon adsorption tank squeezes into the top layer cistern through the elevator pump, the blowdown dry pipe is flowed into to the overflow of setting tank and sand filter.

The diameter of the pore of the filter screen is 2mm, and the upper end of the filter screen is provided with an access hole.

A perforated water distribution pipe is arranged between the sedimentation tank and the sand filter.

The top of the sedimentation tank is externally connected with an overflow pipe and a return pipe, and the other end of the return pipe is connected with the reservoir.

The sand filter structure do: the sand filter is divided into three areas, namely a gravel layer, a coarse sand layer and a fine sand layer through partition plates, and gaps are reserved at the bottom or the upper part of each partition plate.

The gravel layer I is externally connected with an overflow pipe, the bottom of the fine sand layer is externally connected with a back-washing pipe, and a valve I is arranged on the back-washing pipe.

The bottom of the biological activated carbon adsorption tank is respectively connected with an inlet pipeline and a backwashing pipeline, a valve II is installed on the backwashing pipe, the top of the biological activated carbon adsorption tank is externally connected with a water outlet pipeline, the side wall of the biological activated carbon adsorption tank is externally connected with a regenerated carbon supply pipeline and an aging carbon removal pipeline, and the interior of the biological activated carbon adsorption tank is divided into a quartz sand layer and an activated carbon layer.

The quartz sand layer is positioned below the activated carbon layer.

The side wall of the reservoir is provided with a siphon, the upper end of the reservoir is provided with a reservoir water inlet pipe, and the lower end of the reservoir is provided with a reservoir water outlet pipe.

The utility model has the following beneficial effects:

(1) the washing wastewater does not enter a domestic sewage treatment system, so that the load of urban domestic sewage treatment is reduced.

(2) The waste water from washing is high-quality waste water, and the problem of water resource shortage can be reduced by using the waste water from washing after purification treatment to flush toilet.

(3) The treatment on the spot, the recycling on the spot, reduce the transportation cost.

Drawings

FIG. 1 is a schematic view of the pipeline connection of the toilet wastewater circulating treatment system.

Fig. 2 is a schematic structural diagram of the sand filter.

Fig. 3 is a schematic structural diagram of a biological activated carbon adsorption tank.

Fig. 4 is a schematic diagram of a water reservoir structure.

Wherein 1, the upper washing pool of the bathing center, 2, a filter screen, 3, a sedimentation tank, 4, a sand filter, 5, a biological activated carbon adsorption tank, 6, a reservoir, 7, a lower toilet flushing water tank, 8, a top reservoir, 9, a top toilet flushing water tank, 10, a lift pump, 11, a filter system access hole, 12, a sedimentation tank overflow pipe, 13, a sand filter overflow pipe, 14, a return pipe, 15, a blowdown dry pipe, 16, a perforated water distribution pipe, 17, a gravel layer and 18, a coarse stone layer; 19-a fine stone layer; 20-a separator; 21-a water outlet pipe of the sand filter; 22-sand filter backwash pipe; 23-a valve; 24-a water inlet pipe of the charcoal adsorption tank; 25-a water outlet pipe of the biological carbon adsorption tank; 26-a biochar adsorption tank back flushing pipe; 27-quartz sand layer; 28-an activated carbon layer; 29-a supply activated carbon conduit; 30-discharging the aged carbon pipeline; 31-a valve; 32-a water inlet pipe of a reservoir; 33-a water outlet pipe of the reservoir; 34-siphon.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the following detailed description of the embodiments of the utility model is made with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model.

The utility model provides a wash waste water cyclic treatment system, including blowdown dry pipe 15, upper strata wash basin 1, lower floor's cistern 6, lower floor's flushing water tank 7, top layer cistern 8 and top layer flushing water tank 9, pass through the pipe connection between 1 waste water outlet in upper strata wash basin and the 7 water inlets of lower floor's flushing water tank, be equipped with filter screen 2 between 1 of upper strata wash basin and the 7 lower floor flushing water tank in proper order, setting tank 3, sand filter 4, biological activity carbon adsorption tank 5 and cistern 6, the reclaimed water behind biological activity carbon adsorption tank 5 is squeezed into top layer cistern 8 through elevator pump 10, setting tank 3 all flows into blowdown dry pipe 15 with the overflow of sand filter 4. The waste water that upper strata wash basin 1 produced filters most bulky impurity and hair through filter screen 2 earlier, and filter screen 2 is established inside sedimentation tank 3, and the upper end is equipped with access hole 11, regularly clears up and overhauls. The filtered wastewater enters a settling tank 3, after filtration and sedimentation, the upper layer light oil stain is discharged into a sewage discharge main pipe 15 through an overflow pipe 12, the bottom layer sediment is periodically cleaned and discharged into the sewage discharge main pipe 15 through a mud sedimentation pipe, and the cleaner water in the middle part flows into a sand filter 4 through a perforated water distribution pipe 16.

The pore diameter of the filter screen 2 is 2mm, and the upper end of the filter screen 2 is provided with an access hole 11.

A perforated water distribution pipe 16 is arranged between the sedimentation tank 3 and the sand filter tank 4.

The top of the sedimentation tank 3 is externally connected with an overflow pipe 12 and a return pipe 14, and the other end of the return pipe 14 is connected with the water storage tank 6.

The sand filter 4 is divided into three areas, namely a gravel layer 17, a coarse sand layer 18 and a fine sand layer 19, by a partition plate 20, and a gap is reserved at the bottom or the upper part of the partition plate 20. The interior of the sand filter 4 is divided into three parts, namely a gravel layer 17, a coarse stone layer 18 and a fine stone layer 19 through partition boards 20. The sewage treated by the sedimentation tank flows into the gravel layer 17 uniformly through the perforated water distribution pipe 16, and then flows through the coarse stone layer 18 and the fine stone layer 19 in sequence through the gap between the bottom and the top, so that impurities in the water are further removed. The gravel layer 17 is externally connected with an overflow pipe 13, the bottom of the fine sand layer 19 is externally connected with a back washing pipe 22, and a valve I23 is arranged on the back washing pipe. After twice filtration and once precipitation, most impurities in water are removed, and the turbidity is obviously reduced. The waste water with less pollutant produced in office and super class washing basin can reach the water quality requirement of flushing water basically through the treatment. However, the waste water discharged from household wash basins, student dormitory wash basins and the like contains a large amount of washing essence and spices, such as shampoo, facial cleanser, toothpaste, even hair dye and the like, and has complex components and peculiar smell. Therefore, the organic matters in the water can be removed through the adsorption treatment of the biological activated carbon, and the peculiar smell is reduced.

The bottom of the biological activated carbon adsorption tank 5 is respectively connected with an inlet pipeline 24 and a back flushing pipeline 26, a valve II31 is installed on the back flushing pipe, the top of the biological activated carbon adsorption tank 5 is externally connected with a water outlet pipeline 25, the side wall of the biological activated carbon adsorption tank 5 is externally connected with a regenerated carbon supply pipeline 29 and an aging carbon removal pipeline 30, and the interior of the biological activated carbon adsorption tank 5 is divided into a quartz sand layer 27 and an activated carbon layer 28.

The sewage treated by the sand filter 4 flows in from the lower end of the activated carbon adsorption tank 5, flows out from the upper end after being filtered by the quartz sand layer 27 and adsorbed by the activated carbon layer 28 from bottom to top, then flows into the reservoir 6 to be used as toilet flushing water, after the lower layer toilet is flushed, the water in the reservoir 6 automatically flows into the lower layer toilet flushing water tank 7 under the action of gravity to prepare for the next toilet flushing, the biological activated carbon adsorption tank 5 needs to be periodically flushed back, then the backwashing can be carried out only by opening the valve II31 on the backwashing pipeline 26, and the valve II31 is closed after the flushing is finished.

The quartz sand layer 27 is positioned below the activated carbon layer 28.

The side wall of the reservoir 6 is provided with a siphon pipe 34, the upper end of the reservoir 6 is provided with a reservoir inlet pipe 32, and the lower end of the reservoir 6 is provided with a reservoir outlet pipe 33.

The reservoir 6 is externally connected with a return pipe 14 and is connected with an internal siphon 34, when the water level of the reservoir reaches a certain height and submerges the top end of the siphon 34, the water in the reservoir is sucked back to the sedimentation tank 3 through the return pipe 14 to be used as a buffer, and if the water amount is still excessive, the water flows into the blowdown trunk pipe 15 through the overflow pipe 12.

The second layer to the top layer are operated according to the flow. The reservoir is not arranged on one layer, the water outlet pipeline of the activated carbon adsorption tank on the other layer is provided with a lift pump 10, and the treated water is pumped into the reservoir 8 on the top layer through the lift pump 10 and is used as toilet flushing water on the lower layer together with the treated water on the top layer.

What has been described above is merely a preferred embodiment of the utility model. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the working principle of the present invention, and the protection scope of the present invention should be considered.

Claims

1. a toilet waste water circulation treatment system, it is characterized in that: comprise sewage main pipe (15), upper lavatory (1), lower reservoir (6), lower flushing water tank (7), top reservoir ( 8) and the top flushing water tank (9), the waste water outlet of the upper washbasin (1) and the water inlet of the lower flushing water tank (7) are connected by pipelines, and the upper washbasin (1) and the lower flushing water tank (7) A filter screen (2), a sedimentation tank (3), a sand filter (4), a biological activated carbon adsorption tank (5) and a water storage tank (6) are arranged in sequence between them. The water is pumped into the top storage tank (8) through the lift pump (10), and the overflows of the sedimentation tank (3) and the sand filter tank (4) both flow into the sewage main pipe (15).

2 . The toilet waste water recycling system according to claim 1 , wherein the filter screen ( 2 ) has a pore diameter of 2 mm, and an inspection port ( 11 ) is provided at the upper end of the filter screen ( 2 ). 3 .

3. The toilet waste water circulation treatment system according to claim 1, wherein a perforated water distribution pipe (16) is arranged between the sedimentation tank (3) and the sand filter tank (4).

4. The toilet waste water circulation treatment system according to claim 1, characterized in that: the top of the sedimentation tank (3) is externally connected to an overflow pipe (12) and a return pipe (14), and the other end of the return pipe (14) is connected to the The reservoir (6) is connected.

5. The toilet waste water circulation treatment system according to claim 1, wherein the structure of the sand filter tank (4) is as follows: the sand filter tank (4) is divided into three regions by the partition plate (20), which are respectively For the gravel layer (17), the coarse sand layer (18) and the fine sand layer (19), a gap is left at the bottom or upper part of the partition plate (20).

6. The toilet waste water circulation treatment system according to claim 5, characterized in that: the gravel layer (17) is connected to an overflow pipe (13), and the bottom of the fine sand layer (19) is connected to a backwash pipe (22). , install valve I (23) on the backwash pipe.

7. The toilet waste water circulation treatment system according to claim 1, characterized in that: the bottom of the biological activated carbon adsorption tank (5) is connected to an external inlet pipe (24) and a backwash pipe (26) respectively, and the backwash pipe is installed on the backwash pipe. Valve II (31), the top of the biological activated carbon adsorption tank (5) is connected to a water outlet pipe (25), and the side wall of the biological activated carbon adsorption tank (5) is externally connected to a pipeline for supplying regenerated carbon (29) and a pipeline for removing aging carbon (30), and the biological activated carbon adsorption The inside of the tank (5) is divided into a quartz sand layer (27) and an activated carbon layer (28).

8. The toilet waste water recycling system according to claim 7, characterized in that: the quartz sand layer (27) is located below the activated carbon layer (28).

9. The toilet waste water circulation treatment system according to claim 1, characterized in that: the side wall of the reservoir (6) is provided with a siphon (34), and the upper end of the reservoir (6) is provided with a reservoir inlet. The water pipe (32) is provided with a water outlet pipe (33) at the lower end of the water reservoir (6).