CN209872622U - Sewage pretreatment equipment - Google Patents

Sewage pretreatment equipment Download PDF

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Publication number
CN209872622U
CN209872622U CN201920500841.7U CN201920500841U CN209872622U CN 209872622 U CN209872622 U CN 209872622U CN 201920500841 U CN201920500841 U CN 201920500841U CN 209872622 U CN209872622 U CN 209872622U
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China
Prior art keywords
tank
sewage
adjusting tank
gas collecting
equalizing basin
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CN201920500841.7U
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Chinese (zh)
Inventor
郑征
郑思贵
潘俊峰
彭开勋
杜成
黄晓波
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Zhengyuan Shengke (Chengdu) Technology Co.,Ltd.
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CHENGDU CHEMPEP BIOCHEMICAL TECHNOLOGY Co Ltd
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Abstract

The utility model discloses a sewage pretreatment equipment, including synthesizing equalizing basin and flocculation basin, still include dense water equalizing basin, first PH equalizing basin, little electrolytic bath, fenton pond and second PH equalizing basin, the pool mouth of dense water equalizing basin, comprehensive equalizing basin, first PH equalizing basin, little electrolytic bath, fenton pond, second PH equalizing basin and flocculation basin all is provided with the apron, be provided with the gas collecting hole on the apron, be provided with the gas collecting pipe in the gas collecting hole, the gas collecting pipe is connected with the conveyer pipe, duct connection has the photocatalysis purification mechanism. The utility model discloses a set up the apron on each cell body to set up the discharge on the apron, can collect and carry the organic solvent that volatilizees in the sewage to photocatalytic purification mechanism, photocatalytic purification mechanism advances to decompose into harmless materials such as micro molecule carbon dioxide, water to organic solvent, thereby purifies waste gas, prevents to volatilize in the sewage and gets into in the air and cause the pollution.

Description

Sewage pretreatment equipment
Technical Field
The utility model relates to a sewage treatment device field, concretely relates to sewage pretreatment device.
Background
The industrial wastewater contains various pollutants, part of the pollutants is volatile organic solvent, when the industrial wastewater is treated, part of the organic solvent volatilizes to generate waste gas, the generated amount of the waste gas is generally less, the waste gas is not treated by the conventional sewage treatment plant and directly emptied, and the content of the waste gas is lower, but the waste gas can also cause adverse effect on the environment.
At present, the pretreatment of sewage generally comprises homogenization treatment, removal of large-particle solids, suspended matters and the like, and volatile organic solvents are not treated, so that waste gas is easily generated to cause pollution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a sewage pretreatment equipment is provided, can collect organic solvent and volatilize and the waste gas that produces and handle waste gas, reduce the pollution to the environment.
The utility model provides a technical scheme that technical problem adopted is: the sewage pretreatment equipment comprises a comprehensive adjusting tank and a flocculation tank,
the device also comprises a concentrated water adjusting tank, a first PH adjusting tank, a micro-electrolysis tank, a Fenton tank and a second PH adjusting tank, wherein the concentrated water adjusting tank, the comprehensive adjusting tank, the first PH adjusting tank, the micro-electrolysis tank, the Fenton tank, the second PH adjusting tank and the flocculation tank are communicated in sequence;
the concentrated water adjusting tank, the comprehensive adjusting tank, the first PH adjusting tank, the micro-electrolysis tank, the Fenton tank, the second PH adjusting tank and the flocculation tank are all provided with cover plates, gas collecting holes are formed in the cover plates, gas collecting pipes are arranged in the gas collecting holes and connected with conveying pipes, and the conveying pipes are connected with a photocatalytic purification mechanism.
Further, all be provided with rabbling mechanism in dense water equalizing basin, the equalizing basin of synthesizing, first PH equalizing basin, the micro-electrolytic cell, fenton pond, second PH equalizing basin and the flocculation basin.
Further, the stirring mechanism is an aeration device.
Furthermore, a spray tower is arranged on the conveying pipe between the photocatalytic purification mechanism and the gas collecting pipe, a gas inlet and a water outlet are arranged at the bottom of the spray tower, and a gas outlet and a water inlet are arranged at the top of the spray tower.
Furthermore, the water inlet and the water outlet are connected through a circulating pipe, and a circulating pump is arranged on the circulating pipe.
Furthermore, the photocatalytic purification mechanism is connected with a fan through a pipeline, and each gas collecting pipe is provided with an air valve.
Further, the fan is connected with an exhaust chimney through a pipeline, and the height of the exhaust chimney is higher than 12 m.
Further, the cover plate is a glass fiber reinforced plastic plate.
Further, the flocculation tank is connected with a sedimentation tank.
Compared with the prior art, the beneficial effects of the utility model are that: through set up the apron on each cell body to set up the discharge on the apron, can collect and carry to photocatalysis purification mechanism with volatilizing organic solvent in the sewage, photocatalysis purification mechanism advances to decompose into harmless substances such as micro molecule carbon dioxide, water to waste gas purifies, prevents to volatilize in the sewage and in the waste gas entering air and cause the pollution.
Drawings
Fig. 1 is a schematic view of the present invention.
Reference numerals: 1-comprehensive regulating reservoir; 2-a flocculation tank; 3-a concentrated water adjusting tank; 4-first PH adjusting tank; 5-micro-electrolysis cell; 6-Fenton pool; 7-second pH adjusting tank; 8, covering a plate; 9-a gas collecting pipe; 10, a conveying pipe; 11-a stirring mechanism; 12-a fan; 13-air valve; 14-photocatalytic purification mechanism; 15-a spray tower; 16-an air inlet; 17-air outlet; 18-a water outlet; 19-water inlet; 20-an exhaust stack; 21-circulation pipe; 22-circulating pump; 23-sedimentation tank.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The utility model discloses a sewage pretreatment equipment, as shown in fig. 1, including synthesizing equalizing basin 1 and flocculation basin 2, still include dense water equalizing basin 3, first PH equalizing basin 4, little electrolytic bath 5, fenton pond 6 and second PH equalizing basin 7, dense water equalizing basin 3, synthesize equalizing basin 1, first PH equalizing basin 4, little electrolytic bath 5, fenton pond 6, second PH equalizing basin 7 and flocculation basin 2 communicate in proper order.
Because sewage may be from a plurality of manufacturers or families, the sewage concentrations from different sources are inconsistent, in order to improve the sewage treatment efficiency and effect, sewage with various concentrations needs to be adjusted and homogenized, so that the sewage concentration is in a range easy to treat, various kinds of sewage are fully mixed, and pollutants are uniformly distributed in the sewage. In order to achieve the purpose, the utility model discloses set up dense water equalizing basin 3, the sewage that is higher than a certain concentration value lets in dense water equalizing basin 3, lets in the clear water in to dense water equalizing basin 3 simultaneously, dilutes the sewage of high concentration. And the high-concentration sewage after dilution also enters the comprehensive adjusting tank 1, and the high-concentration sewage and the sewage are mixed in the comprehensive adjusting tank 1 to form sewage with proper concentration and uniform components so as to be convenient for subsequent treatment.
The first pH adjusting tank 4 is used for adjusting the pH value of the sewage to be about 3, then the sewage enters the micro-electrolysis tank 5, and iron carbon is added into the micro-electrolysis tank 5, so that pigment in the sewage can be removed. The Fenton pool 6 is used for removing part of organic matters which are difficult to degrade, specifically, hydrogen peroxide is added into the Fenton pool 6, and the hydrogen peroxide and ferrous ions in sewage form a Fenton reagent to oxidize and decompose part of the organic matters, so that nitrobenzene, ABS and the like can be effectively treated, and malodor can be removed. The flocculation tank 2 is used for removing suspended matters in the sewage, and specifically, a flocculating agent and a coagulant aid are added into the flocculation tank 2 to form alum flocs with free iron in the sewage, and then the suspended matters in the sewage are removed through precipitation. In order to be suitable for flocculation treatment in order to adjust the PH of sewage, be provided with second PH equalizing basin 7 between Fenton's pond 6 and the flocculation basin 2, to adding sodium hydroxide in second PH equalizing basin 7, adjust the PH value of sewage for about 8, then let in sewage flocculation basin 2 again.
In the above-mentioned processing procedure, the volatile organic solvent in the sewage volatilizees and produces waste gas, in order to prevent that waste gas from directly getting into the air and leading to the pollution, the utility model discloses the pool mouth of dense water equalizing basin 3, comprehensive equalizing basin 1, first PH equalizing basin 4, little electrolytic bath 5, fenton pond 6, second PH equalizing basin 7 and flocculation basin 2 all is provided with apron 8, and apron 8 covers each cell body oral area, prevents that gas from leaking, and apron 8 can adopt the panel of various materials such as metal sheet, concrete slab, plastic slab, and is preferred, and apron 8 adopts the glass steel board, and intensity is high, and weight ratio concrete and metal material are light, and corrosion resistance is stronger.
In order to collect and purify the waste gas, a gas collecting hole is formed in the cover plate 8, a gas collecting pipe 9 is arranged in the gas collecting hole, the gas collecting pipe 9 is connected with a conveying pipe 10, and the conveying pipe 10 is connected with a photocatalytic purification mechanism 14. Waste gas in the sewage enters the conveying pipe 10 through the gas collecting pipe 9 and then reaches the photocatalytic purification mechanism 14 through the conveying pipe 10, the photocatalytic purification mechanism 14 is a photo-oxidation reaction carried out under the action of a catalyst, organic pollutants can be decomposed into harmless substances such as carbon dioxide, water and the like, and the commonly used catalyst is titanium dioxide. At present, various photocatalytic purification devices exist in the market, and finished products can be directly purchased for use. The exhaust gas is decomposed and purified by the photocatalytic purification mechanism 14 and then is exhausted.
In the dense water equalizing basin 3, high concentration sewage and dilution water need the intensive mixing, synthesize equalizing basin 1, need carry out the homogeneity to sewage and handle, in first PH equalizing basin 4, second PH equalizing basin 7, little electrolysis pond 5 and the fenton pond 6, the reagent that adds need be even with sewage, the intensive mixing, in order to guarantee the flash mixed, improve the treatment effeciency, simultaneously in order to promote the organic solvent evaporation in the sewage, reduce volatile organic solvent's content, all be provided with rabbling mechanism 11 in dense water equalizing basin 3, the integrated equalizing basin 1, first PH equalizing basin 4, little electrolysis pond 5, the fenton pond 6, second PH equalizing basin 7 and the flocculation basin 2. The stirring mechanism 11 stirs the sewage, promotes quick, even, abundant mixture of sewage and medicament, simultaneously, when stirring, can impel the organic solvent in the sewage to volatilize.
The stirring mechanism 11 may be any of various stirring devices, and preferably, the stirring mechanism 11 is an aeration device. Aeration equipment sets up in the bottom of each cell body, can let in each cell body with the air, forms many bubbles in sewage, and the bubble upflow promotes the effect that the water flows, can promote the homogeneity that sewage and reagent mix, and simultaneously, in the volatile organic solvent gets into the bubble and along with the bubble is escaped from sewage, the air carries gaseous state organic solvent and gets into gas collecting 9 simultaneously, evacuation after purifying. The aeration device is a common sewage treatment device, and the existing finished product can be directly purchased.
A spray tower 15 is arranged on the conveying pipe 10 between the photocatalytic purification mechanism 14 and the gas collecting pipe 9, a gas inlet 16 and a water outlet 18 are arranged at the bottom of the spray tower 15, and a gas outlet 17 and a water inlet 19 are arranged at the top of the spray tower 15. The delivery pipe 10 is divided into two sections, one section is connected with the air inlet 16 and the air collecting pipe 9, and the other section is connected with the air outlet 17 and the photocatalytic purification mechanism 14. The water inlet 19 is used for introducing washing water, the water outlet 18 is used for discharging the washing water, the washing water enters from the water inlet 19 at the top of the spray tower 15, the waste gas enters from the gas inlet 16 at the bottom of the spray tower 15, the waste gas and the washing water are in reverse contact, the washing water washes the waste gas, then the waste gas is discharged from the gas outlet 17 at the top of the spray tower 15, and the washing water is discharged from the water outlet 18 at the bottom of the spray tower 15. The waste gas is washed and then subjected to photocatalytic decomposition, so that the treatment effect on the waste gas can be improved, and the content of harmful gas is reduced.
In order to fully utilize the washing water, the water inlet 19 and the water outlet 18 are connected through a circulating pipe 21, a circulating pump 22 is arranged on the circulating pipe 21, and the washing water can circularly flow under the action of the circulating pump 22, so that the water consumption is reduced.
The photocatalytic purification mechanism 14 is connected with a fan 12 through a pipeline, an air valve 13 is arranged on each gas collecting pipe 9, when the fan 12 operates, waste gas in each tank body can be sucked into the gas collecting pipes 9, so that the waste gas is prevented from leaking outwards, the flow of the waste gas is promoted, and the continuity of waste gas treatment is ensured. The air valve 13 is an air volume adjusting valve, so that the amount of waste gas entering each gas collecting pipe 9 can be kept consistent.
The fan 12 is connected with an exhaust chimney 20 through a pipeline, the height of the exhaust chimney 20 is higher than 12m, the exhaust chimney 20 is used for exhausting the treated waste gas, and the exhaust chimney 20, the gas collecting pipe 9, the delivery pipe 10 and the spray tower 15 are all made of PP materials, namely polypropylene materials, so that the corrosion resistance is high. The exhaust stack 20 is higher than 12m, preferably 15m, and discharges the exhaust gas directly into the upper air.
The flocculation tank 2 is connected with a sedimentation tank 23, sewage after flocculation treatment is discharged into the sedimentation tank 23, large-particle solids in the sewage can be eliminated through standing sedimentation, and then the sewage is sent to the next treatment link.
The utility model discloses can collect and purify the waste gas that sewage pretreatment in-process produced, prevent in the sewage the waste gas that volatilizees the production from getting into the air and causing the pollution.

Claims (9)

1. Sewage pretreatment equipment, including comprehensive equalizing basin (1) and flocculation basin (2), its characterized in that:
the device is characterized by further comprising a concentrated water adjusting tank (3), a first PH adjusting tank (4), a micro-electrolysis tank (5), a Fenton tank (6) and a second PH adjusting tank (7), wherein the concentrated water adjusting tank (3), the comprehensive adjusting tank (1), the first PH adjusting tank (4), the micro-electrolysis tank (5), the Fenton tank (6), the second PH adjusting tank (7) and the flocculation tank (2) are communicated in sequence;
the device is characterized in that the mouth of each of the concentrated water adjusting tank (3), the comprehensive adjusting tank (1), the first PH adjusting tank (4), the micro-electrolysis tank (5), the Fenton tank (6), the second PH adjusting tank (7) and the flocculation tank (2) is provided with a cover plate (8), a gas collecting hole is formed in the cover plate (8), a gas collecting pipe (9) is arranged in the gas collecting hole, the gas collecting pipe (9) is connected with a conveying pipe (10), and the conveying pipe (10) is connected with a photocatalytic purification mechanism (14).
2. The sewage pretreatment apparatus according to claim 1, wherein a stirring mechanism (11) is disposed in each of the concentrate adjusting tank (3), the integrated adjusting tank (1), the first PH adjusting tank (4), the micro-electrolysis tank (5), the fenton tank (6), the second PH adjusting tank (7) and the flocculation tank (2).
3. The sewage pretreatment apparatus according to claim 2, wherein said stirring mechanism (11) is an aeration device.
4. The sewage pretreatment apparatus according to claim 1, wherein a spray tower (15) is disposed on the delivery pipe (10) between the photocatalytic purification mechanism (14) and the gas collecting pipe (9), the spray tower (15) is provided with a gas inlet (16) and a water outlet (18) at the bottom and a gas outlet (17) and a water inlet (19) at the top.
5. The sewage pretreatment apparatus according to claim 4, wherein said water inlet (19) and said water outlet (18) are connected by a circulation pipe (21), and said circulation pipe (21) is provided with a circulation pump (22).
6. The sewage pretreatment apparatus according to claim 1, wherein said photocatalytic purification mechanism (14) is connected with a fan (12) through a pipeline, and each gas collecting pipe (9) is provided with an air valve (13).
7. The sewage pretreatment apparatus according to claim 6, wherein said fan (12) is connected with an exhaust stack (20) through a pipe, and a height of said exhaust stack (20) is higher than 12 m.
8. The sewage pretreatment apparatus according to claim 1, wherein said cover plate (8) is a glass steel plate.
9. The sewage pretreatment apparatus according to claim 1, characterized in that a sedimentation tank (23) is connected to the flocculation tank (2).
CN201920500841.7U 2019-04-12 2019-04-12 Sewage pretreatment equipment Active CN209872622U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920500841.7U CN209872622U (en) 2019-04-12 2019-04-12 Sewage pretreatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920500841.7U CN209872622U (en) 2019-04-12 2019-04-12 Sewage pretreatment equipment

Publications (1)

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CN209872622U true CN209872622U (en) 2019-12-31

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Application Number Title Priority Date Filing Date
CN201920500841.7U Active CN209872622U (en) 2019-04-12 2019-04-12 Sewage pretreatment equipment

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112221343A (en) * 2020-09-28 2021-01-15 成都达源环保工程有限公司 Pharmaceutical chemical wastewater and organic waste gas desorption and cooling combined biological purification treatment method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112221343A (en) * 2020-09-28 2021-01-15 成都达源环保工程有限公司 Pharmaceutical chemical wastewater and organic waste gas desorption and cooling combined biological purification treatment method

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Address after: No. 170 Qingpu Road, Shou'an Street, Pujiang County, Chengdu City, Sichuan Province 610000

Patentee after: Zhengyuan Shengke (Chengdu) Technology Co.,Ltd.

Country or region after: China

Address before: 611630 Chengdu Zhengyuan Biochemical Technology Co., Ltd., Shou'an Industrial Development Zone, Pujiang County, Chengdu City, Sichuan Province

Patentee before: CHENGDU ZHENGYUAN BIOCHEMICAL TECHNOLOGY CO.,LTD.

Country or region before: China