CN215250265U

CN215250265U - Sewage comprehensive treatment device

Info

Publication number: CN215250265U
Application number: CN202121230198.4U
Authority: CN
Inventors: 薛小红
Original assignee: Golden Time Chemical Jiangsu Co ltd
Current assignee: Golden Time Chemical Jiangsu Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-21
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a sewage comprehensive treatment device, the device is including the sewage storage tank, the pond of hydrolysising, the denitrification pond, good oxygen pond, the first pond that sinks, reaction tank, the two pond that sink, discharge water pond and the waste water jar that connect gradually. The primary sedimentation tank and the secondary sedimentation tank are both connected with a sludge tank, and the sludge tank is sequentially connected with an adjusting tank, a filter press, a feeding machine and a drying machine. Also comprises a biological deodorization tower connected with the hydrolysis tank. The utility model discloses a sewage treatment plant all has higher effect of getting rid of to organic matter, ammonia nitrogen etc. in the waste water. The device has strong load impact resistance, and can maintain normal operation for 24 hours when the water quality of inlet water fluctuates greatly or the concentration of pollutants is high, so the operation and management are simple. Therefore, the sewage treatment device has high purification efficiency and simple operation.

Description

Sewage comprehensive treatment device

Technical Field

The utility model belongs to environmental protection, sewage treatment field, concretely relates to sewage integrated processing apparatus.

Background

Sewage treatment refers to a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like. However, the existing sewage treatment device has more equipment and complex operation.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide a comprehensive sewage treatment device to overcome the defects of the prior art. The utility model provides a pair of sewage integrated processing device, including the sewage storage tank, the pond of hydrolysising, denitrification pond, good oxygen pond, the first pond that sinks, reaction tank, the two pond that sink, discharge water pond and the waste water jar that connect gradually. The primary sedimentation tank and the secondary sedimentation tank are both connected with a sludge tank, and further comprise an adjusting tank, a filter press, a feeding machine and a drying machine which are connected in sequence, wherein the adjusting tank is connected with the sludge tank. The aerobic tank is connected with the hydrolysis tank, and the primary sedimentation tank is connected with the hydrolysis tank. The method comprises the steps of collecting industrial production wastewater, domestic sewage and initial rainwater in a centralized manner to a sewage storage tank, mixing, feeding the mixed sewage into a hydrolysis tank, adding NaOH to adjust the pH value of the hydrolysis tank, adding a carbon source and a phosphorus source, and hydrolyzing suspended pollutants such as carbohydrates and soluble organic matters in the sewage into organic acid to decompose macromolecular organic matters into micromolecular organic matters. Then enters a denitrification tank, anaerobic bacteria ammoniate organic pollutants under the anoxic condition, and NO is subjected to denitrification₃Reduction to molecular nitrogen (N)₂). Then the mixture enters an aerobic tank, and NH is generated under the nitrification of aerobic bacteria under the condition of oxygen supply₃-N(NH₄To NO by oxidation of ++)₃Testing the sewage index, and returning to the hydrolysis tank through reflux control if the sewage index does not meet the standard. And after reaching the standard, the wastewater enters a primary sedimentation tank for sedimentation, the precipitated wastewater enters a reaction tank, NaOH is added into the reaction tank to adjust the pH value, the reacted wastewater enters a secondary sedimentation tank, the precipitated wastewater enters a discharge water tank, and the wastewater is pumped into a wastewater tank after being detected to be qualified. And (3) pumping the sludge in the primary sedimentation tank and the sludge in the secondary sedimentation tank into a regulating tank, standing, decanting a supernatant, adding polyferric sulfate, calcium hydroxide and polyacrylamide (PAM cation), and stirring and mixing by air. Then pumping the sludge into a box type filter press through a diaphragm pump, after filter pressing, sending the sludge into a hollow blade dryer through a spiral feeding machine, controlling the steam pressure at the inlet of the dryer, and when the sludge in a bin of the dryer becomes looseAnd opening a feed opening during granulation, and filling dried sludge into a ton bag.

Further, the device also comprises a biological deodorization tower and a wet oxidation washing tower, wherein the biological deodorization tower is connected with the hydrolysis tank, and the wet oxidation washing tower is connected with the biological deodorization tower. The tail gas of the hydrolysis tank firstly passes through a biological deodorization tower, the tail gas basically reaches the standard after being treated by the biological deodorization tower, and then passes through a wet oxidation washing tower, and a trace amount of organic matters (non-methane total hydrocarbon) which are difficult to be degraded biologically are oxidized and decomposed by a spraying liquid containing sodium hypochlorite and are partially absorbed.

Further, an underwater propeller is arranged in the hydrolysis tank; the denitrification tank is provided with a needle-thread balance wheel stirrer; the primary sedimentation tank and the secondary sedimentation tank are both provided with submersible sewage pumps; the reaction tank is provided with a needle-line balance wheel stirrer.

Further, the hydrolysis tank, the denitrification tank, the aerobic tank, the primary sedimentation tank, the reaction tank, the secondary sedimentation tank, the discharge water tank and the sludge tank are all of a semi-underground reinforced concrete structure.

The utility model has the advantages that: (1) the efficiency is high. The device has higher removal effect on organic matters, ammonia nitrogen and the like in the wastewater. (2) The operation is simple. The device has strong load impact resistance, and can maintain normal operation for 24 hours when the water quality of inlet water fluctuates greatly or the concentration of pollutants is high, so the operation and management are very simple.

Drawings

FIG. 1 is a drawing of an apparatus for integrated wastewater treatment provided by the present invention;

in the figure: 1. a sewage storage tank; 2. a hydrolysis tank; 3. a denitrification tank; 4. an aerobic tank; 5. a primary sedimentation tank; 6. a reaction tank; 7. a secondary sedimentation tank; 8. draining the water tank; 9. a waste water tank; 10. a sludge tank; 11. a regulating tank; 12. a filter press; 13. a feeding machine; 14. a dryer; 15. a biological deodorization tower; 16. wet oxidation scrubbing tower.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the attached drawing 1, in order to achieve the above object, the present invention provides an integrated sewage treatment apparatus, which comprises a sewage storage tank 1, a hydrolysis tank 2, a denitrification tank 3, an aerobic tank 4, a primary sedimentation tank 5, a reaction tank 6, a secondary sedimentation tank 7, a discharge water tank 8 and a waste water tank 9, which are connected in sequence. The primary sedimentation tank 5 and the secondary sedimentation tank 7 are both connected with a sludge tank 10, and further comprise an adjusting tank 11, a filter press 12, a feeding machine 13 and a drying machine 14 which are connected in sequence, wherein the adjusting tank 11 is connected with the sludge tank 10. The aerobic tank 4 is connected with the hydrolysis tank 2, and the primary sedimentation tank 5 is connected with the hydrolysis tank 2. Industrial production wastewater, domestic sewage and initial rainwater are collected in a centralized manner and are mixed in a sewage storage tank 1, the mixed sewage enters a hydrolysis tank 2, NaOH is added to adjust the pH value of the hydrolysis tank 2, then a carbon source and a phosphorus source are added, suspended pollutants such as carbohydrates and the like in the sewage and soluble organic matters are hydrolyzed into organic acid, and macromolecular organic matters are decomposed into micromolecular organic matters. Then enters a denitrification tank 3, under the anoxic condition, the anaerobic bacteria ammoniate the organic pollutants, and denitrification is carried out to reduce NO 3-into molecular nitrogen (N2). Then the sewage enters an aerobic tank 4, under the condition of oxygen supply, NH3-N (NH4+) is oxidized into NO 3-by the nitrification of aerobic bacteria, the sewage index is tested, and if the sewage index does not meet the standard, the sewage is returned to a hydrolysis tank 2 again through reflux control. And after reaching the standard, the wastewater enters a primary sedimentation tank 5 for sedimentation, the precipitated wastewater enters a reaction tank 6, NaOH is added into the reaction tank 6 to adjust the pH value, the reacted wastewater enters a secondary sedimentation tank 7, the wastewater enters a discharge water tank 8 after sedimentation, and the wastewater is pumped into a wastewater tank 9 after being detected to be qualified. And (3) pumping the sludge in the primary sedimentation tank 5 and the sludge in the secondary sedimentation tank 7 into a regulating tank 11, standing, decanting a supernatant, adding polymeric ferric sulfate, calcium hydroxide and polyacrylamide (PAM cation), and stirring and mixing with air. Then the sludge is pumped into a box type filter press 12 through a diaphragm pump, after filter pressing, the sludge is sent into a hollow blade dryer 14 through a spiral feeding machine 13, the steam pressure at the inlet of the dryer 14 is controlled, when the sludge in a bin of the dryer 14 becomes loose particles, a feed opening is opened, and the dried sludge is filled into a ton bag.

The embodiment also comprises a biological deodorization tower 15 and a wet oxidation washing tower 16, wherein the biological deodorization tower 15 is connected with the hydrolysis tank 2, and the wet oxidation washing tower 16 is connected with the biological deodorization tower 15. The tail gas of the hydrolysis tank 2 firstly passes through a biological deodorization tower 15, the tail gas is treated by the biological deodorization tower 15 and basically reaches the standard, and then passes through a wet oxidation washing tower 16, and trace organic matters (non-methane total hydrocarbon) which are difficult to degrade biologically are oxidized and decomposed by a spraying liquid containing sodium hypochlorite and are partially absorbed.

In the embodiment, an underwater propeller is arranged in the hydrolysis tank 2; the denitrification tank 3 is provided with a needle-thread balance wheel stirrer; the primary sedimentation tank 5 and the secondary sedimentation tank 7 are both provided with submersible sewage pumps; the reaction tank 6 is provided with a needle and line balance wheel stirrer.

In this embodiment, the hydrolysis tank 2, the denitrification tank 3, the aerobic tank 4, the primary sedimentation tank 5, the reaction tank 6, the secondary sedimentation tank 7, the discharge water tank 8 and the sludge tank 10 are all of a semi-underground reinforced concrete structure.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a sewage integrated processing device which characterized in that, includes sewage storage tank (1), hydrolysis tank (2), denitrification pond (3), good oxygen pond (4), one heavy pond (5), reaction tank (6), two heavy ponds (7), discharge water tank (8) and waste water tank (9) that connect gradually.

2. The integrated sewage treatment apparatus of claim 1, wherein: the device also comprises a sludge tank (10) connected with the primary sedimentation tank (5) and the secondary sedimentation tank (7), and also comprises an adjusting tank (11), a filter press (12), a feeding machine (13) and a drying machine (14) which are sequentially connected, wherein the adjusting tank (11) is connected with the sludge tank (10).

3. The integrated sewage treatment apparatus of claim 1, wherein: the aerobic tank (4) is connected with the hydrolysis tank (2), and the primary sedimentation tank (5) is connected with the hydrolysis tank (2).

4. The integrated sewage treatment apparatus of claim 2, wherein: the device also comprises a biological deodorization tower (15) and a wet oxidation washing tower (16), wherein the biological deodorization tower (15) is connected with the hydrolysis tank (2), and the wet oxidation washing tower (16) is connected with the biological deodorization tower (15).

5. The integrated sewage treatment apparatus of claim 4, wherein: an underwater propeller is arranged in the hydrolysis tank (2).

6. The integrated sewage treatment apparatus of claim 4, wherein: the denitrification tank (3) is provided with a needle-thread balance wheel stirrer.

7. The integrated sewage treatment apparatus of claim 4, wherein: the primary sedimentation tank (5) and the secondary sedimentation tank (7) are both provided with submersible sewage pumps.

8. The integrated sewage treatment apparatus of claim 4, wherein: the reaction tank (6) is provided with a needle-line balance wheel stirrer.

9. The integrated sewage treatment apparatus according to any one of claims 4 to 8, wherein: the hydrolysis tank (2), the denitrification tank (3), the aerobic tank (4), the primary sedimentation tank (5), the reaction tank (6), the secondary sedimentation tank (7), the discharge water tank (8) and the sludge tank (10) are all of a semi-underground reinforced concrete structure.