CN217398651U

CN217398651U - Heavy metal wastewater treatment synthesizes sedimentation tank

Info

Publication number: CN217398651U
Application number: CN202221597436.XU
Authority: CN
Inventors: 孙汉柏; 曾庆炳; 魏小红; 周涛
Original assignee: Jiangxi Baihui Environmental Protection Engineering Equipment Co ltd
Current assignee: Jiangxi Baihui Environmental Protection Engineering Equipment Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-09
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a heavy metal waste water treatment synthesizes sedimentation tank relates to heavy metal waste water sedimentation tank technical field, now proposes following scheme: the sedimentation tank comprises a tank body, wherein the tank body of the comprehensive sedimentation tank for heavy metal wastewater treatment comprises a mixed reaction zone, an advection sedimentation zone, a clarification buffer zone and an inclined tube sedimentation zone which are sequentially arranged from left to right and mutually pass through baffles, and the mixed reaction zone, the advection sedimentation zone, the clarification buffer zone and the inclined tube sedimentation zone of the comprehensive sedimentation tank for heavy metal wastewater treatment are mutually separated through the baffles. The utility model discloses area is little, the treatment effect is good, and investment cost is low, goes out water stability, row's mud is convenient, easy operation.

Description

Heavy metal wastewater treatment synthesizes sedimentation tank

Technical Field

The utility model relates to a heavy metal waste water sedimentation tank technical field especially relates to a heavy metal waste water treatment synthesizes sedimentation tank.

Background

Heavy metal wastewater generally comes from industries such as mining, metal smelting and processing, electroplating, leather making, pesticides, papermaking, painting, printing and dyeing, nuclear technology, petrochemical engineering and the like. Heavy metals are important precious resources and have high use value.

At present, the heavy metal wastewater treatment method mainly treats the heavy metal wastewater through a sedimentation tank. The sedimentation tank is divided into a horizontal flow sedimentation tank, a vertical flow sedimentation tank and a honeycomb inclined tube sedimentation tank according to the water flow direction, and the sedimentation effect is determined by the flow velocity of water in the sedimentation tank and the retention time of the water in the sedimentation tank.

The horizontal-flow sedimentation tank is simple in structure for treating heavy metal wastewater, general in sedimentation effect for treating heavy metal wastewater, unstable in working performance, high in investment and large in occupied area, and sludge alum floc is easy to float upwards to influence effluent quality.

In the vertical sedimentation tank, wastewater is discharged into the tank from top to bottom through a water inlet pipe arranged in the center of the sedimentation tank, and an umbrella-shaped baffle is arranged below an outlet of the inlet water, so that the wastewater is uniformly distributed in the tank and then slowly rises along the whole section of the tank. The suspended matters sink into the tapered sludge bucket at the bottom of the tank under the action of gravity, and the clarified water is discharged from an overflow weir around the upper end of the tank. The vertical sedimentation tank has the problems of large depth, conical tank bottom, difficult construction and high cost although the occupied area is small.

The honeycomb inclined tube sedimentation tank is a novel sedimentation tank designed in recent years. The inclined plate or the inclined pipe is additionally arranged in the sedimentation tank, so that the sedimentation efficiency can be greatly improved, the sedimentation time can be shortened, and the volume of the sedimentation tank can be reduced. However, when a large amount of waste water containing precipitates is treated, the inclined plates and inclined pipes are easy to scale, grow biofilms, easily generate scum, have large maintenance workload, and have the defects of easy sludge discharge difficulty and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the comprehensive sedimentation tank for treating the heavy metal wastewater comprises a tank body;

the tank body comprises a mixing reaction zone, an advection sedimentation zone, a clarification buffer zone and an inclined tube sedimentation zone which are sequentially arranged from left to right through baffles, and the mixing reaction zone, the advection sedimentation zone, the clarification buffer zone and the inclined tube sedimentation zone are mutually separated through the baffles;

a water inlet is arranged at the mixing reaction zone, a clear water collecting zone is arranged above the inclined tube settling zone, and a water outlet is arranged at the clear water collecting zone;

the bottom of the advection settling zone, the clarification buffer zone and the inclined tube settling zone are respectively provided with a sludge hopper, and the sludge hopper is provided with a sludge discharge valve.

Preferably, the mixing reaction zone and the advection precipitation zone are separated by a mixing baffle, and a space for the circulation of the mixing reaction zone and the advection precipitation zone is reserved at the bottom of the mixing baffle.

Preferably, the advection sedimentation zone and the clarification buffer zone are separated by a sludge baffle, and a space for communicating the advection sedimentation zone and the clarification buffer zone is reserved at the top of the sludge baffle.

Preferably, the clarification buffer zone, the inclined tube settling zone and the clear water collecting zone are separated by a clarification baffle, and a space for communicating the clarification buffer zone (4) with the inclined tube settling zone is reserved at the bottom of the clarification baffle.

Preferably, the width of the advection sedimentation zone is wider than the clarification buffer zone and the inclined tube sedimentation zone.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses area is little, the treatment effect is good, and investment cost is low, goes out water stability, row's mud is convenient, easy operation, and it is preceding that this sedimentation tank more than 95% mud has been detained the clarification buffer. It is more convenient to arrange mud, once can thoroughly evacuation mud, can clearly see the mud condition of arranging, sets up the pipe chute settling zone simultaneously and carries out the turn-off once more, fine assurance stable discharge to reach standard effect of water!

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a horizontal flow sedimentation tank in the prior art of the present invention.

Fig. 3 is a schematic view of a vertical sedimentation tank in the prior art of the present invention.

Fig. 4 is a schematic diagram of the honeycomb inclined tube sedimentation tank in the prior art.

Reference numbers in the figures: 1. a tank body; 2. a mixed reaction zone; 21. a water inlet; 3. an advection precipitation zone; 4. a clarification buffer zone; 5. an inclined tube settling zone; 6. a clear water collecting region; 61. a water outlet; 7. a mixing baffle; 8. a sludge baffle; 9. a clarification baffle; 10. a sludge hopper; 11. a sludge discharge valve.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-4, a comprehensive sedimentation tank for heavy metal wastewater treatment comprises a tank body 1;

the tank body 1 comprises a mixing reaction zone 2, an advection sedimentation zone 3, a clarification buffer zone 4 and an inclined tube sedimentation zone 5 which are sequentially arranged from left to right and mutually pass through baffles, and the mixing reaction zone 2, the advection sedimentation zone 3, the clarification buffer zone 4 and the inclined tube sedimentation zone 5 are mutually separated through the baffles;

a water inlet 21 is arranged at the mixing reaction zone 2, a clear water collecting zone 6 is arranged above the inclined tube settling zone 5, and a water outlet 61 is arranged at the clear water collecting zone 6;

the bottoms of the advection settling zone 3, the clarification buffer zone 4 and the inclined tube settling zone 5 are respectively provided with a sludge hopper 10, and the sludge hopper 10 is provided with a sludge discharge valve 11.

In order to better carry out heavy metal waste water and deposit, the utility model discloses still include separate through mixing baffle 7 between mixed reaction zone 2 and the advection settling zone 3, mix baffle 7 bottom and leave the confession mixed reaction zone 2 and the space of 3 circulations of advection settling zone. The advection sedimentation zone 3 and the clarification buffer zone 4 are separated by a sludge baffle 8, and a space for the circulation of the advection sedimentation zone 3 and the clarification buffer zone 4 is reserved at the top of the sludge baffle 8. The clarification buffer zone 4 is separated from the inclined tube settling zone 5 and the clear water collecting zone 6 through a clarification baffle 9, and a space for the circulation of the clarification buffer zone 4 and the inclined tube settling zone 5 is reserved at the bottom of the clarification baffle 9. The width of the advection sedimentation zone 3 is wider than the clarification buffer zone 4 and the inclined tube sedimentation zone 5.

The working principle is as follows: the utility model discloses a discharge waste water into cell body 1 from water inlet 21, waste water is earlier through mixing reaction zone 2, gets into advection settling zone 3 in, carries out a large amount of sludge settling, and the mud of more than 95% is detained in cell body 1 in the advection settling zone 3. Then the wastewater passes through a clarification buffer zone 4 for secondary sedimentation, and the sediment in the wastewater is further reduced. Finally, the waste water passes through the inclined tube sedimentation area 5 to be closed again, the advantage of good effect of the inclined tube sedimentation method can be maximized, and the problem that the inclined tube is easy to block due to a large amount of sediments is avoided. Finally, the wastewater is precipitated for a plurality of times, and clean clear water flows into the clear water collecting area 6 and is discharged through the water outlet 61.

The above-mentioned embodiments only express the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but the present invention is not limited to these embodiments, and it should be noted that it is obvious to those skilled in the art. Without departing from the spirit of the present invention, any improvement is within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a heavy metal waste water treatment synthesizes sedimentation tank which characterized in that: comprises a tank body (1);

the pool body (1) comprises a mixed reaction zone (2), an advection sedimentation zone (3), a clarification buffer zone (4) and an inclined tube sedimentation zone (5) which are sequentially arranged from left to right, wherein the mixed reaction zone (2), the advection sedimentation zone (3), the clarification buffer zone (4) and the inclined tube sedimentation zone (5) are separated from one another by baffles;

a water inlet (21) is arranged at the mixing reaction zone (2), a clear water collecting zone (6) is arranged above the inclined tube settling zone (5), and a water outlet (61) is arranged at the clear water collecting zone (6);

the bottom parts of the advection settling zone (3), the clarification buffer zone (4) and the inclined tube settling zone (5) are respectively provided with a sludge hopper (10), and the sludge hopper (10) is provided with a sludge discharge valve (11).

2. The comprehensive sedimentation tank for heavy metal wastewater treatment according to claim 1, wherein: the mixing reaction zone (2) and the advection precipitation zone (3) are separated by a mixing baffle (7), and a space for the circulation of the mixing reaction zone (2) and the advection precipitation zone (3) is reserved at the bottom of the mixing baffle (7).

3. The comprehensive sedimentation tank for heavy metal wastewater treatment according to claim 2, wherein: the advection sedimentation zone (3) and the clarification buffer zone (4) are separated by a sludge baffle (8), and a space for the advection sedimentation zone (3) and the clarification buffer zone (4) to circulate is reserved at the top of the sludge baffle (8).

4. The comprehensive sedimentation tank for heavy metal wastewater treatment according to claim 3, wherein: the clarification buffer zone (4) is separated from the inclined tube settling zone (5) and the clear water collecting zone (6) through a clarification baffle (9), and the bottom of the clarification baffle (9) is provided with a space for the circulation of the clarification buffer zone (4) and the inclined tube settling zone (5).

5. The comprehensive sedimentation tank for heavy metal wastewater treatment according to any one of claims 1 to 4, wherein: the width of the advection sedimentation zone (3) is wider than the clarification buffer zone (4) and the inclined tube sedimentation zone (5).