CN209906580U - Sewage treatment control system - Google Patents
Sewage treatment control system Download PDFInfo
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- CN209906580U CN209906580U CN201920605046.4U CN201920605046U CN209906580U CN 209906580 U CN209906580 U CN 209906580U CN 201920605046 U CN201920605046 U CN 201920605046U CN 209906580 U CN209906580 U CN 209906580U
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Abstract
The utility model discloses a sewage treatment control system, which comprises a pump station, a grit chamber, an anoxic reaction chamber, an anaerobic reaction chamber, an aerobic reaction chamber, a secondary sedimentation chamber for secondary sedimentation treatment and a disinfection chamber; the utility model is provided with only one grit chamber, and adopts short-time sedimentation to ensure that a part of fine organic suspended solids in the inlet water enters the bioreactor to meet the requirements of denitrifying bacteria and phosphorus accumulating bacteria on a carbon source and ensure that the sludge in the bioreactor can reach higher concentration; the activated sludge in the whole system completely goes through the anaerobic and aerobic processes, so that the discharged excess sludge can fully absorb phosphorus; the influence of nitrate in the returned sludge on anaerobic phosphorus release is avoided; the reaction shows that the concentration of the activated sludge is higher, thereby promoting the synchronous nitrification and the denitrification in the aerobic reactor and improving the nitrogen and phosphorus removal efficiency of the treatment system.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to sewage treatment control system.
Background
The sewage treatment aims at two main purposes, one is to protect water resources from being polluted, so that the treated effluent reaches the water quality standard; and secondly, sewage is recycled, the treated effluent is used for farmland irrigation, urban reclaimed water, industrial production and the like, so that the treated water meets the corresponding water using requirements, and the following principles and requirements are provided for the selection of the process flow by a water treatment engineer manual, so that the selection of the sewage treatment process is carried out according to the following principles and requirements.
(1) The process flow should be selected according to the raw water property and water requirement, the treatment degree and method should accord with the current national standard and relevant regulations of the place, the water quality after treatment should accord with the standard requirement of relevant water and discharge;
(2) the natural conditions and natural resources such as local terrain, address, hydrology, weather and the like are fully utilized;
(3) the sewage treatment should fully consider the dilution and self-purification capability of the discharged water body, and the flow is selected according to the sewage treatment degree;
(4) the flow selection should be in a reasonable and feasible relationship of advanced treatment technology, the requirements of long-term development on water quality and water quantity are considered, and the possibility of staged construction is considered;
(5) the principle of flow combination should be easy first and difficult second, thick first and thin second, low cost first and high cost last.
The sewage treatment control system in the prior art needs a step of sedimentation, and the sedimentation needs a large amount of treatment time, so that the system is not suitable for quickly treating sewage.
In order to solve the problems, the sewage treatment control system is developed by the inventor.
Disclosure of Invention
The utility model aims to provide a sewage treatment control system for solving the problems.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a sewage treatment control system comprising:
a pump station for inputting sewage;
a grit chamber for preliminary sedimentation treatment; the outlet of the pump station is connected with the inlet of the grit chamber;
an anoxic reaction tank; a sewage outlet of the grit chamber is connected with an inlet of the anoxic reaction tank;
an anaerobic reaction tank; the outlet of the anoxic reaction tank is connected with the inlet of the anaerobic reaction tank;
an aerobic reaction tank; the outlet of the anaerobic reaction tank is connected with the inlet of the aerobic reaction tank;
a secondary sedimentation tank for secondary sedimentation treatment; the outlet of the aerobic reaction tank is connected with the inlet of the secondary sedimentation tank;
a disinfection tank; the sewage outlet of the secondary sedimentation tank is connected with a disinfection tank, and the water outlet of the disinfection tank is standard water.
Preferably, the sewage treatment control system also comprises a sand-water separator, and the grit chamber is filtered out sand slag after passing through the sand-water separator and is transported for disposal.
Preferably, the sewage treatment control system further comprises a sludge concentration tank and a dehydration workshop, wherein a part of sludge in the secondary sedimentation tank flows back to the anoxic reaction tank; and the other part of sludge in the secondary sedimentation tank is conveyed to a sludge concentration tank, the slurry in the sludge concentration tank is output to a dehydration workshop, the dehydration workshop transports the dehydrated dry sludge outwards, and the supernatant of the sludge concentration tank and the dehydration workshop is output to a grit chamber.
Preferably, the aerobic reaction tank is connected with a blower room, and the blower room is used for aeration of the aerobic reaction tank.
Preferably, a part of effluent of the aerobic reaction tank flows back to the anoxic reaction tank.
Preferably, the inlets of the pump station and the grit chamber are provided with grids; a coarse grid is arranged at an inlet of the pump station; and a fine grid is arranged at the inlet of the grit chamber, and the grid slag separated by the coarse grid and the fine grid is transported and treated.
Specifically, the grating is arranged in a grating groove, and one end of the grating groove is connected with a water inlet channel; the acute angle included angle between the grid and the horizontal plane is 60 degrees, the grid groove comprises a grid front groove and a grid rear groove, the grid front groove and the grid rear groove are arranged in a staggered connection mode, and the bottom of the grid front groove is higher than the bottom of the grid rear groove.
The beneficial effects of the utility model reside in that:
the utility model discloses a sewage treatment control system:
1. only one grit chamber is arranged, and a short-time sedimentation is adopted, so that a part of fine organic suspended solids in the inlet water enters the bioreactor to meet the requirements of denitrifying bacteria and phosphorus accumulating bacteria on a carbon source, and the sludge in the bioreactor can reach a high concentration; the activated sludge in the whole system completely goes through the anaerobic and aerobic processes, so that the discharged excess sludge can fully absorb phosphorus; the influence of nitrate in the returned sludge on anaerobic phosphorus release is avoided; the reaction shows that the concentration of the activated sludge is higher, thereby promoting the synchronous nitrification and the denitrification in the aerobic reactor and improving the nitrogen and phosphorus removal efficiency of the treatment system.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a schematic view of the installation structure of the grid of the present invention, wherein (a) is a schematic view of the external structure of the grid groove; (b) is a schematic cross-sectional structure diagram of the gate trench.
In the figure: 1-a water inlet channel; 2-a gate trench; 3-a grid.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
example 1. as shown in figure 1,
a sewage treatment control system comprising:
a pump station for inputting sewage;
a grit chamber for preliminary sedimentation treatment; the outlet of the pump station is connected with the inlet of the grit chamber;
an anoxic reaction tank; a sewage outlet of the grit chamber is connected with an inlet of the anoxic reaction tank;
an anaerobic reaction tank; the outlet of the anoxic reaction tank is connected with the inlet of the anaerobic reaction tank;
an aerobic reaction tank; the outlet of the anaerobic reaction tank is connected with the inlet of the aerobic reaction tank;
a secondary sedimentation tank for secondary sedimentation treatment; the outlet of the aerobic reaction tank is connected with the inlet of the secondary sedimentation tank;
a disinfection tank; the sewage outlet of the secondary sedimentation tank is connected with a disinfection tank, and the water outlet of the disinfection tank is standard water.
Example 2. as shown in figure 1,
this example differs from example 1 in that: the sewage treatment control system also comprises a sand-water separator, and the grit chamber is filtered out sand slag after passing through the sand-water separator and is transported to the outside for disposal.
Example 3. as shown in figure 1,
this example differs from example 1 in that: the sewage treatment control system also comprises a sludge concentration tank and a dehydration workshop, wherein a part of sludge in the secondary sedimentation tank flows back to the anoxic reaction tank; and the other part of sludge in the secondary sedimentation tank is conveyed to a sludge concentration tank, the slurry in the sludge concentration tank is output to a dehydration workshop, the dehydration workshop transports the dehydrated dry sludge outwards, and the supernatant of the sludge concentration tank and the dehydration workshop is output to a grit chamber.
Example 4. as shown in figure 1,
this example differs from example 1 in that: the aerobic reaction tank is connected with the blower room, and the blower room is used for aeration of the aerobic reaction tank.
Example 5. as shown in figure 1,
this example differs from example 1 in that: and part of the effluent of the aerobic reaction tank flows back to the anoxic reaction tank.
Example 6. as shown in figure 2,
this example differs from example 1 in that: the inlets of the pump station and the grit chamber are provided with grids 3; a coarse grid 3 is arranged at an inlet of the pump station; the inlet of the grit chamber is provided with a fine grid 3, and the grid slag separated by the coarse grid 3 and the fine grid 3 is transported and treated.
Example 7. as shown in figure 1,
this example differs from example 6 in that: the grid 3 is arranged in the grid groove 2, and one end of the grid groove 2 is connected with the water inlet channel 1; the acute angle included angle between the grid 3 and the horizontal plane is 60 degrees, the grid groove 2 comprises a grid front groove and a grid rear groove, the grid front groove and the grid rear groove are arranged in a staggered connection mode, and the bottom of the grid front groove is higher than the bottom of the grid rear groove.
The design principle of the grid 3 in this application is:
the slag removing mode of the grating 3 comprises manual slag removing and mechanical slag removing, and mechanical slag removing is generally adopted;
the flow velocity of the gate passing is generally 0.6-1.0 m/s;
the water flow speed in the water inlet channel 1 generally adopts 0.4-0.9 m/s;
the inclination angle a of the grid 3 is generally 45-75 degrees; preferably 60 °;
the head loss through the grating 3 is generally 0.08-0.15 m;
a workbench is required to be arranged between the grids 3, the table top is higher than the highest designed water level in front of the grids by 0.5m, and safety and flushing facilities are arranged on the workbench;
the width of the aisle on the two sides of the workbench between the grids 3 is not less than 0.7m, and the width of the aisle on the front side of the workbench is as follows: artificial clearness should not be less than 1.2m, mechanical clearness should not be less than 1.5 m;
the power device of the mechanical grating 3 is generally suitable to be arranged indoors or adopt other protection facilities;
lifting equipment is arranged in the grating 3, so that the maintenance of the grating 3 and other equipment and the daily cleaning of grating slag are facilitated.
As shown in fig. 2, the water depth h before the grid is 1m, and the flow velocity of the passing grid is 0.9 m/s; the number of pauses per grid 3 is 32; l1 is the length of the gradually widened part of the water inlet channel 1; l2 is the length of the gradually widened part of the water outlet channel; b1 is the width of the water inlet channel 1; angle a1 is the gradually-widened portion deployment angle, and angle a1 is preferably 20 °; l2 is the length of the gradually widened part of the water outlet channel; h1 is the grid 3 length; h1 is the design head loss; b is the width of the gate slot 2; h2 is the total height of the gate back groove;
the foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. Sewage treatment control system, its characterized in that includes:
a pump station for inputting sewage;
a grit chamber for preliminary sedimentation treatment; the outlet of the pump station is connected with the inlet of the grit chamber;
an anoxic reaction tank; a sewage outlet of the grit chamber is connected with an inlet of the anoxic reaction tank;
an anaerobic reaction tank; the outlet of the anoxic reaction tank is connected with the inlet of the anaerobic reaction tank;
an aerobic reaction tank; the outlet of the anaerobic reaction tank is connected with the inlet of the aerobic reaction tank;
a secondary sedimentation tank for secondary sedimentation treatment; the outlet of the aerobic reaction tank is connected with the inlet of the secondary sedimentation tank;
a disinfection tank; the sewage outlet of the secondary sedimentation tank is connected with a disinfection tank, and the water outlet of the disinfection tank is standard water.
2. The sewage treatment control system of claim 1, further comprising a sand-water separator, wherein the grit chamber is filtered to remove sand slag and is transported to outside after passing through the sand-water separator.
3. The sewage treatment control system of claim 1, further comprising a sludge concentration tank, a dehydration plant, wherein a portion of sludge in the secondary sedimentation tank flows back to the anoxic reaction tank; and the other part of sludge in the secondary sedimentation tank is conveyed to a sludge concentration tank, the slurry in the sludge concentration tank is output to a dehydration workshop, the dehydration workshop transports the dehydrated dry sludge outwards, and the supernatant of the sludge concentration tank and the dehydration workshop is output to a grit chamber.
4. The wastewater treatment control system according to claim 1, wherein the aerobic reaction tank is connected to a blower room for aeration of the aerobic reaction tank.
5. The wastewater treatment control system according to claim 1, wherein a portion of the effluent from the aerobic reaction tank is returned to the anoxic reaction tank.
6. The sewage treatment control system according to claim 1, wherein a grid is provided at each of the pump station and the inlet of the grit chamber; a coarse grid is arranged at an inlet of the pump station; and a fine grid is arranged at the inlet of the grit chamber, and the grid slag separated by the coarse grid and the fine grid is transported and treated.
7. The wastewater treatment control system according to claim 6, wherein the grid is disposed in a grid groove, and one end of the grid groove is connected to the water inlet channel; the acute angle included angle between the grid and the horizontal plane is 60 degrees, the grid groove comprises a grid front groove and a grid rear groove, the grid front groove and the grid rear groove are arranged in a staggered connection mode, and the bottom of the grid front groove is higher than the bottom of the grid rear groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920605046.4U CN209906580U (en) | 2019-04-29 | 2019-04-29 | Sewage treatment control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920605046.4U CN209906580U (en) | 2019-04-29 | 2019-04-29 | Sewage treatment control system |
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| Publication Number | Publication Date |
|---|---|
| CN209906580U true CN209906580U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920605046.4U Active CN209906580U (en) | 2019-04-29 | 2019-04-29 | Sewage treatment control system |
Country Status (1)
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|---|---|
| CN (1) | CN209906580U (en) |
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- 2019-04-29 CN CN201920605046.4U patent/CN209906580U/en active Active
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