CN211664862U

CN211664862U - Anionic surfactant sewage treatment device

Info

Publication number: CN211664862U
Application number: CN201922478222.5U
Authority: CN
Inventors: 赵传峰
Original assignee: Quzhou Qingtai Environmental Engineering Co ltd
Current assignee: Zhejiang Juhua Environmental Protection Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-13
Anticipated expiration: 2029-12-31

Abstract

The utility model provides an anionic surfactant sewage treatment device, which comprises a pretreatment tank, a sedimentation tank, an aeration tank, a Fenton reaction tank and a membrane filtration tank which are arranged side by side in sequence, wherein a PH adjusting bin is arranged on the side wall of the pretreatment tank, and an outflow pipe extending outwards from the outer side wall of the adjusting bin is arranged at the bottom of the PH adjusting bin; an annular overflow groove is formed in the inner wall, surrounding the settling tank, of the upper portion of the settling tank, a hollow dosing pipe is vertically arranged in the center of the settling tank, a coarse strainer is arranged between the outer side wall of the dosing pipe and the annular overflow groove, and an anionic surfactant is thrown into the dosing pipe through a top opening of the dosing pipe; the outflow pipe extending out of the side wall of the PH adjusting bin directly extends into the medicine feeding pipe. The device can solve the problems of more foam and more floating objects when the anionic surfactant is used for flocculation.

Description

Anionic surfactant sewage treatment device

Technical Field

The utility model relates to a water treatment device.

Background

The anionic surfactant is water soluble polymer and is used mainly in the flocculation, sedimentation and clarification of various kinds of industrial effluent, and has certain polar groups in its molecular chain to adsorb suspended solid particles in water, bridge the particles or neutralize the charge to coagulate the particles to form large flocculate, so that it can speed up the sedimentation of the particles in suspension and has obvious effects of speeding up the solution clarification, promoting filtering, etc. The prior common technology for water treatment by using an anionic surfactant as a flocculating agent has the problems of more foams, more floating objects and the like when the anionic surfactant is used, and the effect of flocculation by using the anionic surfactant is not good if the problems cannot be solved well.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the background art, the utility model provides an anion surfactant sewage treatment plant, the device is when using anion surfactant active to flocculate, the many problems of solution foam that can be fine, floater.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an anionic surfactant sewage treatment device comprises a pretreatment tank, a sedimentation tank, an aeration tank, a Fenton reaction tank and a membrane filtration tank which are sequentially arranged side by side, wherein a PH regulation bin is arranged on the side wall of the pretreatment tank, and an outflow pipe extending outwards from the outer side wall of the regulation bin is arranged at the bottom of the PH regulation bin;

an annular overflow groove is formed in the inner wall, surrounding the settling tank, of the upper portion of the settling tank, a discharge port is formed in the side wall, adjacent to the aeration tank, of the annular overflow groove, a hollow dosing pipe is vertically arranged in the center of the settling tank, a coarse filter screen is arranged between the outer side wall of the dosing pipe and the annular overflow groove, and an anionic surfactant is thrown into the dosing pipe through a top opening of the dosing pipe;

the outflow pipe extending out of the side wall of the PH adjusting bin directly extends into the medicine feeding pipe.

The top of the dosing pipe is flush with the top of the settling tank, and the bottom of the dosing pipe is arranged above the bottom of the conical tank.

The lateral wall top of preliminary treatment jar one side is provided with into waste water entry, and the chemical industry waste water that produces from the mill enters into the preliminary treatment jar through waste water entry, and chemical industry waste water gets into through waste water entry and the velocity of flow of treatment jar will be less than the play water velocity of flow.

The sedimentation tank adjacent to the pretreatment tank comprises a conical tank bottom, a sedimentation tank is arranged in the center of the bottom of the conical tank bottom, and a sludge discharge port is formed in the bottom of the sedimentation tank.

The aeration tank is arranged adjacent to the sedimentation tank, the bottom of the aeration tank is provided with an aeration pipe, the aeration pipe is provided with a plurality of air through holes, and external air continuously aerates into the aeration tank through the aeration pipe.

The top of aeration tank is provided with the water inlet on the lateral wall adjacent with the fenton retort, and the waste water through aeration treatment enters into the fenton retort through the water inlet.

The side wall of the Fenton reaction tank adjacent to the membrane filtration tank is provided with a through hole, and treated water subjected to Fenton reaction enters the membrane filtration tank through the through hole.

The bottom of the membrane filtering tank is provided with a membrane filter which is an ultrafiltration membrane filter.

The utility model has the advantages that: the device can solve the problems of more foam and more floating objects when the anionic surfactant is used for flocculation.

Drawings

The present invention will be further explained with reference to the accompanying drawings

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

Detailed Description

The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:

example 1

An anionic surfactant sewage treatment device, as shown in figure 1, comprises a pretreatment tank 10, a sedimentation tank 20, an aeration tank 30, a Fenton reaction tank 40 and a membrane filtration tank 50 which are arranged side by side in sequence. The lateral wall top of preliminary treatment jar 10 one side is provided with into waste water entry, and the chemical industry waste water that produces from the mill enters into preliminary treatment jar 10 through waste water entry, and the velocity of flow that chemical industry waste water got into through waste water entry and handle jar 10 will be less than the play water velocity of flow, guarantees like this that the waste water in preliminary treatment jar 10 is not full jar. A water level alarm device may be further provided in the pretreatment tank 10 to give an alarm when the water level in the pretreatment tank 10 exceeds a set level, at which time the water supply to the pretreatment tank 10 may be suspended or the water supply rate may be reduced.

Be provided with PH regulation storehouse 12 on the lateral wall of the preliminary treatment jar 10 of the other side relative with waste water entry place lateral wall, separate through baffle 11 between PH regulation storehouse 12 and the preliminary treatment jar 10, the upper portion of baffle 11 has the mouth of advancing, advances the mouth and makes to communicate with each other between PH regulation storehouse 12 and the preliminary treatment jar 10, and the upper portion of PH regulation storehouse 12 has puts in the mouth, puts in alkali through putting in the mouth to PH regulation storehouse. The bottom of the pH adjusting chamber 12 is provided with an outflow pipe 122 which extends outward from the outer side wall of the pH adjusting chamber 12.

The settling tank 20 arranged adjacent to the pretreatment tank 10 comprises a conical tank bottom 21, a settling tank is arranged in the center of the bottom of the conical tank bottom 21, and a sludge discharge port 22 is formed in the bottom of the settling tank. The upper portion of gunbarrel 20 is provided with annular overflow groove 23 on the inner wall of setting pot 20 is encircleed, is provided with discharge port 24 on annular overflow groove 23 and the lateral wall that aeration tank 30 is adjacent, and the central authorities of setting pot 20 are provided with hollow dosing pipe 25 perpendicularly, and the top of dosing pipe 25's top setting pot 20 flushes, and the bottom of dosing pipe 25 sets up the top at toper tank bottoms 21. A coarse filter 26 is arranged between the outer side wall of the dosing pipe 25 and the annular overflow groove 23. An anionic surfactant is fed into the dosing tube 25 through the top opening of the dosing tube 25.

An outflow tube 122 extending from the side wall of the pH adjusting chamber 12 extends directly into the interior of the administration tube 25.

Disposed adjacent to the settling tank 20 is an aeration tank 30, the bottom of the aeration tank 30 has an aeration pipe 31, the aeration pipe 31 has a plurality of air through holes, and the external air passes through the aeration pipe 31 to aerate the tank 30 continuously. The top of aeration tank 30 is provided with the water inlet on the lateral wall adjacent with fenton reaction tank 40, and the waste water through aeration treatment enters into fenton reaction tank 40 through the water inlet.

The Fenton reaction tank 40 is provided with a through hole on the side wall adjacent to the membrane filtration tank, the treated water after Fenton reaction enters the membrane filtration tank 50 through the through hole, the bottom of the membrane filtration tank 50 is provided with a membrane filter 51, and the membrane filter 51 is an ultrafiltration membrane filter.

The working principle of the device is as follows: chemical wastewater generated by a factory enters the pretreatment tank 10 through a wastewater inlet according to a set flow rate through a pumping pump, then enters the PH regulation bin 12 through a bin inlet, sulfuric acid or sodium hydroxide is added into the PH regulation bin through a feeding port in the upper part of the PH regulation bin, and the PH value of the wastewater entering the PH regulation bin is regulated to be near 3.5.

The waste water after the PH value adjustment enters the dosing pipe 25 through the outflow pipe 122, the anionic surfactant is thrown into the dosing pipe 25 through the upper opening of the dosing pipe 25, the anionic surfactant and the waste water are mixed to generate precipitation, the precipitate is sunk into the precipitation tank, and after the precipitate in the precipitation tank is fully accumulated, the sludge discharge port 22 at the bottom can be opened to clean the precipitate.

The wastewater in the settling tank 20 flows upward from the bottom of the dosing pipe 25 to the bottom of the settling tank 20, is filtered by the coarse strainer 26, overflows into the annular overflow tank 23, then enters into the aeration tank 30 from the discharge port 24 on the side wall of the annular overflow tank 23, enters into the Fenton reaction tank after the aeration treatment in the aeration tank 30, enters into the membrane filtration tank 50 after the Fenton reaction, and is filtered by the membrane filter 51 to complete the treatment of the wastewater.

Compared with the chemical wastewater treatment in the prior art, the device has the advantages of simple process, high treatment speed and the like.

Those skilled in the art will recognize that a wide variety of modifications, alterations, and combinations can be made with respect to the above described embodiments without departing from the scope of the invention, and that such modifications, alterations, and combinations are to be viewed as being within the ambit of the inventive concept.

Claims

1. The utility model provides an anion surfactant sewage treatment plant, is including the pretreatment tank, the setting tank, the aeration tank, fenton retort and the membrane filtration jar that set up side by side in proper order, its characterized in that:

a PH adjusting bin is arranged on the side wall of the pretreatment tank, and an outflow pipe extending outwards from the outer side wall of the adjusting bin is arranged at the bottom of the PH adjusting bin;

2. The anionic surfactant sewage treating apparatus as set forth in claim 1, wherein the dosing pipe has its top flush with the top of the settling tank and its bottom set over the bottom of the conical tank.

3. The apparatus for treating wastewater with anionic surfactant according to claim 1, wherein the pretreatment tank is provided with a wastewater inlet above a side wall of one side thereof, and chemical wastewater generated from a factory enters the pretreatment tank through the wastewater inlet, and the flow rate of the chemical wastewater entering and treating tank through the wastewater inlet is smaller than the flow rate of effluent.

4. The anionic surfactant sewage treating apparatus as claimed in claim 1, wherein the settling tank adjacent to the pre-treating tank includes a conical tank bottom with a settling tank in the center and a sludge discharge port in the bottom.

5. The anionic surfactant sewage treatment apparatus as claimed in claim 1, wherein an aeration tank is provided adjacent to the settling tank, the aeration tank having an aeration pipe at a bottom thereof, the aeration pipe having a plurality of air through holes, and external air being continuously aerated into the aeration tank through the aeration pipe.

6. The anionic surfactant sewage treatment apparatus as claimed in claim 1, wherein a water inlet is provided at a top of the aeration tank on a side wall adjacent to the Fenton reaction tank, and the wastewater subjected to the aeration treatment is introduced into the Fenton reaction tank through the water inlet.

7. The anionic surfactant sewage treatment apparatus as claimed in claim 1, wherein the Fenton reaction tank is provided with through holes on a side wall thereof adjacent to the membrane filtration tank, and the treated water subjected to the Fenton reaction is introduced into the membrane filtration tank through the through holes.

8. The anionic surfactant sewage treating apparatus as set forth in claim 1, wherein the membrane filtering tank has a membrane filter at its bottom, and the membrane filter is an ultrafiltration membrane filter.