CN211570274U - Waste water treatment device - Google Patents

Waste water treatment device Download PDF

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Publication number
CN211570274U
CN211570274U CN201921638464.XU CN201921638464U CN211570274U CN 211570274 U CN211570274 U CN 211570274U CN 201921638464 U CN201921638464 U CN 201921638464U CN 211570274 U CN211570274 U CN 211570274U
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sedimentation tank
partition
sedimentation
height
waste water
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CN201921638464.XU
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Inventor
胡胜丰
唐存军
方平光
卢营
曹际宣
李国锋
金勇�
周建新
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Powerchina Resources Ltd
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Powerchina Resources Ltd
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Abstract

The utility model belongs to the technical field of waste water treatment, concretely relates to waste water treatment device and method. The waste water treatment device comprises a first sedimentation tank for settling large particles, a second sedimentation tank for removing oil stains in waste water and a third sedimentation tank for settling fine particles, the device is integrally arranged, the height of a first partition wall is limited to be lower than the height of the water surface of the waste water, and the first sedimentation tank and the second sedimentation tank are communicated; the third sedimentation tank can carry out the secondary sedimentation to tiny particulate matter, has reached the purpose of cleaing away tiny particulate matter.

Description

Waste water treatment device
Technical Field
The utility model belongs to the technical field of waste water treatment, concretely relates to waste water treatment device and method.
Background
The hydropower station is a comprehensive engineering facility for converting water energy into electric energy, is also called as a hydropower plant, and comprises a series of hydropower station buildings constructed by utilizing water energy to produce electric energy and various installed hydropower station equipment. The waste water generated in the construction process of the hydropower station has various types, large water quantity and high concentration of suspended matters, and can cause adverse effects on the ecological environment of a construction area and the water quality of a downstream river if the waste water is directly discharged without being treated.
The sewage and waste water produced by hydropower station is divided into construction period waste water and operation period waste water according to time period, and is divided into production waste water and domestic waste water according to the source and property of the sewage and waste water according to different time periods, the production waste water in the construction period mainly comes from foundation pit waste water, sand and stone processing flushing water, concrete maintenance water and the like, and the domestic waste water mainly comes from oily waste water of part of operation valves in the field during maintenance and cleaning. According to the relevant national environmental protection regulations, the waste water generated by engineering construction must be discharged up to the standard, which puts requirements on the treatment of the waste water of the foundation pit.
Chinese patent document CN108751459A discloses a treatment facility of domestic sewage, include the intake basin that sets up along same direction interval, the greasy dirt separation tank, separation tank and filtering ponds, set up through the pipeline intercommunication between, the sewage treatment facility's in this patent structure is complicated, need set up filter assembly alone, greasy dirt separation component, the separator assembly, adsorption component etc., and these subassemblies need periodic maintenance, the change, it is artifical and consumptive material with high costs, and adjust filter assembly according to the particle diameter of different waste water constitutions and particulate matter, it is comparatively troublesome, do not have the commonality, and split type device's construction cost is high. In addition, the existing wastewater treatment device also has the problems of poor economical efficiency and environmental protection, imperfect sludge treatment facilities and the like.
Disclosure of Invention
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defects of complex structure, high construction cost, poor oil absorption effect and the like of the sewage treatment device in the prior art, thereby providing a wastewater treatment device and a method.
Therefore, the utility model provides the following technical scheme.
The utility model provides a wastewater treatment device, which comprises,
the first sedimentation tank is used for realizing sedimentation of larger particles;
the second sedimentation tank is used for removing oil stains in wastewater to be treated, a first partition wall is arranged between the first sedimentation tank and the second sedimentation tank, the height of the first partition wall is lower than that of the first sedimentation tank and the second sedimentation tank, and an oil absorption device is arranged at the upper part of the second sedimentation tank;
and the third sedimentation tank is used for realizing sedimentation of fine particles, the second sedimentation tank and the third sedimentation tank are separated by a second partition wall, and the second partition wall is provided with a first through hole.
The third sedimentation tank comprises at least two sedimentation tanks connected in series;
the first sedimentation tank is one or more sedimentation tanks;
the second sedimentation tank is one or more sedimentation tanks.
The oil absorption device is made of geotextile.
The oil absorption device is erected on the wall beside the pool by adopting scaffold steel pipes, the geotextile is spread and hung on the steel pipes in a drying way, so that the geotextile is immersed into the pool water for 30-60cm, 1-3 geotextile lines are erected on the oil absorption device, the distance between every two geotextile lines is more than 50cm, and the geotextile full of oil stains is replaced in time.
The top end of the side wall of the first sedimentation tank is provided with a water inlet for discharging wastewater;
and the third sedimentation tank is provided with a water outlet, and the height of the water outlet is lower than that of the third sedimentation tank.
The distance between the first through hole and the bottom of the second sedimentation tank is lower than the height of the first partition wall.
The distance between the first through hole and the bottom of the second sedimentation tank is 1-1.67 m.
The distance between the water outlet and the bottom of the third sedimentation tank is larger than the distance between the first through hole and the bottom of the second sedimentation tank.
The distance between the water outlet and the bottom of the third sedimentation tank is 1.2-2 m.
The height of the first partition wall is 1.2-2 m; the height of the sedimentation tank is 1.5-2.5 m.
The utility model also provides a wastewater treatment method adopts above-mentioned wastewater treatment device, includes following steps:
introducing the wastewater to be treated into a first sedimentation tank to realize preliminary sedimentation of large-particle precipitates;
the wastewater after the primary sedimentation enters a second sedimentation tank through a first partition wall, and oil stains in the wastewater float on the surface of the sedimentation tank and are removed through an oil absorption device arranged above the second sedimentation tank;
the wastewater without oil stains flows into a third sedimentation tank through a first through hole arranged on the second partition wall, so that sedimentation of fine particles is realized; finally discharged through the water outlet.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a wastewater treatment device, including the first sedimentation tank that is used for subsiding big particulate matter, get rid of the second sedimentation tank of greasy dirt in the waste water and subside the third sedimentation tank of tiny particulate matter, the device adopts integral setting, highly inject the height that makes it be less than the waste water surface of water to first partition wall, and then communicate first sedimentation tank and second sedimentation tank, this mode can enlarge the flow area, reduce the velocity of water, make the particulate matter in the waste water deposit in first sedimentation tank and second sedimentation tank to the maximum extent, the water wave can be transmitted to the second sedimentation tank from first sedimentation tank simultaneously, make the greasy dirt that floats on the waste water surface adsorb in oil absorption device with the help of the driving force of water wave, need not increase extra external force again and can reach the effect that improves the absorption greasy dirt; through the mode intercommunication of through-hole between second sedimentation tank and third sedimentation tank, can make rivers concentrate to pass through, cut off the transmission of ripples, reduced the disturbance influence to water on every side, can make the third sedimentation tank carry out the secondary sedimentation to tiny particulate matter, reached the purpose of cleaing away tiny particulate matter.
The utility model provides a wastewater treatment device simple structure, construction cost are low, easily realize the industrialization and use.
2. The utility model provides a wastewater treatment device, the device can guarantee that the greasy dirt can not overflow from the second sedimentation tank to the third sedimentation tank by controlling the height of the through hole, and can not be discharged from the water outlet of the third sedimentation tank because the greasy dirt can float on the surface of the water body of the second sedimentation tank, thereby obviously reducing the content of the greasy dirt in the wastewater after treatment; and adopt geotechnological cloth etc. as oil suction device, the adsorption effect is good, and the material purchase is convenient, and the power consumption is little, economical and practical.
The device is through the height to first partition wall, the distance between first through-hole and the second sedimentation tank bottom and the height of delivery port are injectd, can make the big particulate matter in the waste water, if mud, sand grain etc. deposit in first sedimentation tank and second sedimentation tank, the greasy dirt in the waste water is got rid of at the oil suction device of second sedimentation tank, less particulate matter subsides in the waste water in the third sedimentation tank, the treatment effect of waste water has been improved effectively, make the delivery port discharged water reach the standard that the environmental protection can be discharged.
3. The utility model provides a wastewater treatment device through highly controlling the sedimentation tank, has satisfied manual work and mechanical operation's requirement simultaneously, is convenient for clear up the precipitate in the sedimentation tank, and also changes in the economic nature that realizes the construction to the control of sedimentation tank height.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic perspective view of a wastewater treatment apparatus according to example 1 of the present invention;
FIG. 2 is a schematic perspective view of a wastewater treatment apparatus according to example 2 of the present invention;
FIG. 3 is a schematic front view of a wastewater treatment apparatus according to example 2 of the present invention;
FIG. 4 is a schematic view of the top view of the wastewater treatment apparatus according to example 2 of the present invention;
reference numerals:
1-a first sedimentation tank; 2-a second sedimentation tank; 3-a third sedimentation tank; 4-a fourth sedimentation tank; 5-a water inlet; 6-a first partition wall; 7-an oil suction device; 8-a second partition wall; 9-a first via; 10-a third partition wall; 11-a second via; 12-water outlet.
Detailed Description
The following examples are provided for better understanding of the present invention, and are not limited to the best mode, and do not limit the scope and content of the present invention, and any product that is the same or similar to the present invention, which is obtained by combining the features of the present invention with other prior art or the present invention, falls within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a wastewater treatment device, the three-dimensional structure of which is shown in figure 1, specifically comprising,
the device comprises a water inlet 5, a first sedimentation tank 1, a second sedimentation tank 2, a third sedimentation tank 3, a first partition wall 6, an oil absorption device (in the embodiment, oil absorption geotextile) 7, a second partition wall 8, a first through hole 9 and a water outlet 12, wherein the water inlet is arranged at the top end of the side wall of the first sedimentation tank, the water outlet is arranged on the side wall of the third sedimentation tank, the first sedimentation tank and the second sedimentation tank are separated by the first partition wall, the second sedimentation tank and the third sedimentation tank are separated by the second partition wall, the second partition wall is provided with the first through hole, 2 oil absorption geotextile scaffolds are arranged in the second sedimentation tank, the oil absorption geotextile scaffolds are erected on the side wall of the tank by adopting common steel pipes, the geotextile is spread and hung on the steel pipes, so that the geotextile is soaked into the water of the tank for 50cm, and the distance between each oil absorption geotextile is 60 cm; the height of the first partition wall is lower than that of the wastewater surface;
specifically, the height H of the sedimentation tank is 2.4m, the height of the first partition wall is 1.92m, and the height of the second partition wall is 2.4 m; the distance between the first through hole and the bottom of the sedimentation tank is 1.6 m; the distance between the water outlet and the bottom of the sedimentation tank is 1.92 m.
Example 2
The embodiment provides a wastewater treatment device, which has a three-dimensional structure as shown in figure 2, a front view as shown in figure 3, and a top view as shown in figure 4, and specifically comprises,
a water inlet 5, a first sedimentation tank 1, a second sedimentation tank 2, a third sedimentation tank 3, a fourth sedimentation tank 4, a first partition wall 6, an oil absorption device (in this embodiment, oil absorption geotextile) 7, a second partition wall 8, a third partition wall 10, a first through hole 9, a second through hole 11 and a water outlet 12, wherein the water inlet is arranged at the top end of the side wall of the first sedimentation tank, the fourth sedimentation tank is connected with the third sedimentation tank in series, the third sedimentation tank and the fourth sedimentation tank are used for settling fine particulate matters, the water outlet is arranged on the side wall of the fourth sedimentation tank, the first sedimentation tank and the second sedimentation tank are separated by the first partition wall, the second sedimentation tank and the third sedimentation tank are separated by the second partition wall, the third sedimentation tank and the fourth sedimentation tank are separated by the third partition wall, the second partition wall is provided with a first through hole, the third partition wall is provided with a second through hole, the second sedimentation tank is provided with 1 oil absorption geotextile, the oil absorption geotextile is erected on the wall beside the pool by adopting a common scaffold steel pipe, and is spread and hung on the steel pipe, so that the geotextile is immersed into the pool water for 30cm, and the height of the first partition wall is lower than that of the wastewater surface;
specifically, the height H of the sedimentation tank is 2.4m, the height of the first partition wall is 1.92m, the height of the second partition wall is 2.4m, and the height of the third partition wall is 2.4 m; the distance between the first through hole and the bottom of the sedimentation tank is 1.6m, and the distance between the second through hole and the bottom of the sedimentation tank is 1.6 m; the distance between the water outlet and the bottom of the sedimentation tank is 1.92 m.
Example 3
The embodiment provides a wastewater treatment device, which specifically comprises,
a water inlet 5, a first sedimentation tank 1, a second sedimentation tank 2, a third sedimentation tank 3, a fourth sedimentation tank 4, a first partition wall 6, an oil absorption device (in this embodiment, oil absorption geotextile) 7, a second partition wall 8, a third partition wall 10, a first through hole 9, a second through hole 11 and a water outlet 12, wherein the water inlet is arranged at the top end of the side wall of the first sedimentation tank, the fourth sedimentation tank is connected with the third sedimentation tank in series, the third sedimentation tank and the fourth sedimentation tank are used for settling fine particulate matters, the water outlet is arranged on the side wall of the fourth sedimentation tank, the first sedimentation tank and the second sedimentation tank are separated by the first partition wall, the second sedimentation tank and the third sedimentation tank are separated by the second partition wall, the third sedimentation tank and the fourth sedimentation tank are separated by the third partition wall, the second partition wall is provided with a first through hole, the third partition wall is provided with a second through hole, the second sedimentation tank is provided with 3 oil absorption geotextile, the oil-absorbing geotextile is erected on the wall beside the pool by adopting a scaffold steel pipe, the geotextile is spread and hung on the steel pipe, so that the geotextile is soaked in the pool water for 60cm, the distance between every two oil-absorbing geotextiles is 80cm, and the height of the first partition wall is lower than the height of the water surface of the wastewater;
specifically, the height H of the sedimentation tank is 1.5m, the height of the first partition wall is 1.2m, the height of the second partition wall is 1.5m, and the height of the third partition wall is 1.5 m; the distance between the first through hole and the bottom of the sedimentation tank is 1.0m, and the distance between the second through hole and the bottom of the sedimentation tank is 1.0 m; the distance between the water outlet and the bottom of the sedimentation tank is 1.2 m.
Example 4
The embodiment provides a wastewater treatment device, which specifically comprises,
a water inlet 5, a first sedimentation tank 1, a second sedimentation tank 2, a third sedimentation tank 3, a fourth sedimentation tank 4, a first partition wall 6, an oil absorption device (in this embodiment, oil absorption geotextile) 7, a second partition wall 8, a third partition wall 10, a first through hole 9, a second through hole 11 and a water outlet 12, wherein the water inlet is arranged at the top end of the side wall of the first sedimentation tank, the fourth sedimentation tank is connected with the third sedimentation tank in series, the third sedimentation tank and the fourth sedimentation tank are used for settling fine particulate matters, the water outlet is arranged on the side wall of the fourth sedimentation tank, the first sedimentation tank and the second sedimentation tank are separated by the first partition wall, the second sedimentation tank and the third sedimentation tank are separated by the second partition wall, the third sedimentation tank and the fourth sedimentation tank are separated by the third partition wall, the second partition wall is provided with a first through hole, the third partition wall is provided with a second through hole, the second sedimentation tank is provided with 2 oil absorption geotextile, the oil-absorbing geotextile is erected on the wall beside the pool by adopting a common scaffold steel pipe, and the geotextile is spread and hung on the steel pipe, so that the geotextile is immersed into the pool water for 40cm, and the distance between every two adjacent oil-absorbing geotextiles is 70 cm; the height of the first partition wall is lower than that of the wastewater surface;
specifically, the height H of the sedimentation tank is 1.8m, the height of the first partition wall is 1.44m, the height of the second partition wall is 1.8m, and the height of the third partition wall is 1.8 m; the distance between the first through hole and the bottom of the sedimentation tank is 1.2m, and the distance between the second through hole and the bottom of the sedimentation tank is 1.2 m; the distance between the water outlet and the bottom of the sedimentation tank is 1.44 m.
Test examples
The test example provides the performance test of the wastewater treatment device obtained in the example 1 to the example 4 and the test results before and after wastewater treatment, the drainage standard of the foundation pit for hydropower station construction is shown in table 1, and the test result of the component content of the wastewater is shown in table 2;
in table 1, turbidity is a parameter for measuring river water for a plurality of times in a long time, is used for representing the content of suspended matters such as particles, and is an automatic control index determined by combining domestic standards and the characteristics of a wastewater treatment device, and the automatic control index of turbidity does not exceed 20 NTU.
Table 1 hydropower station construction foundation pit wastewater discharge permission control index value
Table 2 examples 1 to 4 waste water treated by the waste water treatment apparatus
As can be seen from table 2, the wastewater treatment apparatus provided by the present invention can effectively remove the oil stains from the wastewater, and the oil stain content in the treated water is significantly reduced; turbidity can be used for representing the content of suspended solids such as particles in the wastewater, and can be seen from table 2, the wastewater treatment device provided by the utility model can greatly reduce the turbidity of the wastewater, and the purpose of removing the particles is achieved; the utility model discloses still have simple structure, construction cost low, the easy advantage of industrialization.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.

Claims (9)

1. A wastewater treatment device is characterized by comprising,
the first sedimentation tank is used for realizing sedimentation of larger particles;
the second sedimentation tank is used for removing oil stains in wastewater to be treated, a first partition wall is arranged between the first sedimentation tank and the second sedimentation tank, the height of the first partition wall is lower than that of the first sedimentation tank and the second sedimentation tank, and an oil absorption device is arranged at the upper part of the second sedimentation tank;
and the third sedimentation tank is used for realizing sedimentation of fine particles, the second sedimentation tank and the third sedimentation tank are separated by a second partition wall, and the second partition wall is provided with a first through hole.
2. The wastewater treatment plant of claim 1, wherein the third settling tank comprises at least two settling tanks in series;
the first sedimentation tank is one or more sedimentation tanks;
the second sedimentation tank is one or more sedimentation tanks.
3. The wastewater treatment plant of claim 1, wherein the oil absorption device is a geotextile.
4. The wastewater treatment plant according to claim 1, wherein the top end of the side wall of the first sedimentation tank is provided with a water inlet for discharging wastewater;
and the third sedimentation tank is provided with a water outlet, and the height of the water outlet is lower than that of the third sedimentation tank.
5. The wastewater treatment apparatus according to claim 1, wherein the distance between the first through-hole and the bottom of the second sedimentation tank is lower than the height of the first partition wall.
6. The wastewater treatment apparatus according to claim 5, wherein the distance between the first through-hole and the bottom of the second sedimentation tank is 1 to 1.67 m.
7. The wastewater treatment apparatus according to claim 4, wherein the distance between the water outlet and the bottom of the third sedimentation tank is greater than the distance between the first through hole and the bottom of the second sedimentation tank.
8. The wastewater treatment plant according to claim 7, characterized in that the distance between the water outlet and the bottom of the third sedimentation tank is 1.2-2 m.
9. The wastewater treatment apparatus according to claim 1, wherein the height of the first partition wall is 1.2 to 2 m;
the height of the sedimentation tank is 1.5-2.5 m.
CN201921638464.XU 2019-09-27 2019-09-27 Waste water treatment device Active CN211570274U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921638464.XU CN211570274U (en) 2019-09-27 2019-09-27 Waste water treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921638464.XU CN211570274U (en) 2019-09-27 2019-09-27 Waste water treatment device

Publications (1)

Publication Number Publication Date
CN211570274U true CN211570274U (en) 2020-09-25

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ID=72528745

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921638464.XU Active CN211570274U (en) 2019-09-27 2019-09-27 Waste water treatment device

Country Status (1)

Country Link
CN (1) CN211570274U (en)

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