CN110127952A - A kind of municipal wastewater processing unit and method - Google Patents
A kind of municipal wastewater processing unit and method Download PDFInfo
- Publication number
- CN110127952A CN110127952A CN201910475440.5A CN201910475440A CN110127952A CN 110127952 A CN110127952 A CN 110127952A CN 201910475440 A CN201910475440 A CN 201910475440A CN 110127952 A CN110127952 A CN 110127952A
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- waste water
- water treatment
- treatment box
- dredger
- sewage
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- 239000010841 municipal wastewater Substances 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title abstract description 8
- 239000010865 sewage Substances 0.000 claims abstract description 77
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 241000251468 Actinopterygii Species 0.000 claims abstract description 6
- 238000004062 sedimentation Methods 0.000 claims description 27
- 230000029087 digestion Effects 0.000 claims description 17
- 238000000354 decomposition reaction Methods 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 13
- 230000001699 photocatalysis Effects 0.000 claims description 13
- 238000007146 photocatalysis Methods 0.000 claims description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 8
- 239000003463 adsorbent Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 5
- 238000003672 processing method Methods 0.000 claims description 5
- 230000015556 catabolic process Effects 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 238000011109 contamination Methods 0.000 claims description 4
- 238000006731 degradation reaction Methods 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of municipal wastewater processing unit and methods, belong to technical field of sewage, its drip irrigation device includes waste water treatment box, water inlet pipe and outlet pipe, the water inlet pipe and outlet pipe are connected to inside the waste water treatment box, one end that the outlet pipe is connected to waste water treatment box is provided with filter screen, the dredger for fishing for the sundries before being deposited in the filter screen is provided in the waste water treatment box, the outer wall of the dredger and the inner wall of the waste water treatment box fit, the lifting cylinder for driving the dredger to pump is provided on the waste water treatment box, the present invention, which has, conveniently fishes for the sundries before being deposited in filter screen, the advantages of improving sewage treating efficiency.
Description
Technical field
The invention belongs to technical field of sewage, and more specifically it is related to a kind of municipal wastewater processing unit and side
Method.
Background technique
With the development of today's society, environmental pollution is increasingly severe, and the pollution to water is also more serious, sewage treatment
Device is mounted in a kind of device on road and with draining and sewage treatment effect, in environmental protection and water resource circulation benefit
Very important effect has been played with aspect.
Currently, existing sewage-treatment plant generally comprises waste water treatment box, water inlet pipe and outlet pipe, water inlet pipe and water outlet
Connection inside waste water treatment box described in Guan Junyu, one end that outlet pipe is connected to waste water treatment box is equipped with filter screen.When work,
Road sewage is entered in waste water treatment box by water inlet pipe to be purified, and purified sewage is discharged by outlet pipe.Wherein, mistake
The phenomenon that strainer can intercept the sundries adulterated in sewage, prevent outlet pipe from blocking.
But the sundries that above-mentioned filter screen intercepts can be deposited in waste water treatment box, when the sundries heap in waste water treatment box
Product is to after certain amount, then will affect the proper drainage of outlet pipe, therefore before just needing manually to fish for and being deposited in filter screen
Sundries, and to expend the time longer for the mode manually fished for, and is easy to influence sewage treating efficiency.
Summary of the invention
In view of the deficienciess of the prior art, the first object of the present invention is to provide a kind of municipal wastewater processing unit,
It has the advantages of conveniently fishing for the sundries before being deposited in filter screen, improving sewage treating efficiency.
To achieve the above object, the present invention provides the following technical scheme that a kind of municipal wastewater processing unit, including sewage
Treatment box, water inlet pipe and outlet pipe, the water inlet pipe and outlet pipe are connected to inside the waste water treatment box, the outlet pipe
The one end being connected to waste water treatment box is provided with filter screen, is provided in the waste water treatment box and is deposited in the mistake for fishing for
The dredger of sundries before strainer, the outer wall of the dredger and the inner wall of the waste water treatment box fit, the waste water treatment box
On be provided with lifting cylinder for driving the dredger to pump.
It can make by using above-mentioned technical proposal since the outer wall of dredger and the inner wall of waste water treatment box fit
Filter screen intercepts sundries and is completely in dredger, and after sundries is stacked into certain amount, it can be by starting lifting air
Cylinder drives dredger to rise, so that dredger pulling out the sundries before being deposited in filter screen.
To sum up, dredger is driven to rise or fall by lifting cylinder, before staff can be facilitated to fish for and be deposited in filter screen
Sundries, improve sewage treating efficiency.
The present invention is further arranged to: the bottom of the waste water treatment box is provided with hidden plate, the hidden plate and sewage
Form hidden chamber between the bottom wall for the treatment of box, the lifting cylinder setting is described hidden intracavitary, and the work of the lifting cylinder
Stopper rod passes through hidden plate and connect with the bottom of the dredger.
By using above-mentioned technical proposal, lifting cylinder is mounted on hidden intracavitary, lifting cylinder can be hidden, and then reduce
The occupied space size of sewage-treatment plant.In addition, being exposed on the outside of waste water treatment box relative to by lifting cylinder, by lifting air
Cylinder is hidden in hidden intracavitary, and erosion of the rainwater to lifting cylinder when can avoid raining is conducive to the validity period for improving lifting cylinder
Limit.
The present invention is further arranged to: the connection passed through for the piston rod of the lifting cylinder is provided on the hidden plate
Hole, the sealing ring being provided in the connecting hole on the outside of the piston rod of the lifting cylinder.
By using above-mentioned technical proposal, the setting of sealing ring can prevent the sewage in waste water treatment box from entering hidden chamber
And influence the use of lifting cylinder.
The present invention is further arranged to: the upper end-face edge of the waste water treatment box is provided with right above the hidden plate
Limit plate.
Lifting air can be closed when the lower end of the upper end of dredger and limit plate abuts against by using above-mentioned technical proposal
Cylinder guarantees that dredger is dripped when rising to extreme higher position still in the sewage in waste water treatment box, effectively avoided on dredger outer wall
On the outside of waste water treatment box.Wherein, since dredger needs to be adapted with the inner wall shape of waste water treatment box, i.e., limit plate is located at hidden
Right above shield plate, the contact area of limit plate and dredger can be effectively increased, so that the limit effect of limit plate is more preferably.
The present invention is further arranged to: the lower end surface of the limit plate is provided with the stroke being electrically connected with lifting cylinder and opens
It closes, the upper end-face edge of the dredger is provided with the stroke trigger board of travel switch described in face, when the stroke trigger board and institute
When stating travel switch and abutting against, the piston rod stop motion of the lifting cylinder.
By using above-mentioned technical proposal, when stroke trigger board is abutted against with travel switch, the piston rod of lifting cylinder
Movement is automatically stopped, it can be achieved that automation, improves working efficiency.
The present invention is further arranged to: the limit plate and the waste water treatment box are rotatablely connected.
Limit plate is overturn when dredger picks up the sundries before being deposited in filter screen by using above-mentioned technical proposal
To the state perpendicular with waste water treatment box upper surface, staff can be facilitated to take out the sundries in dredger.
The present invention is further arranged to: being provided with torsional spring at the rotation connection of the limit plate and the waste water treatment box.
By using above-mentioned technical proposal, when limit plate loses external force, limit plate can be made under the action of torsional spring
It automatically resets, and then saves and again overturn limit plate to the time of horizontal position.
The present invention is further arranged to: the mesh number of the filter screen is 300~400 mesh.
By using above-mentioned technical proposal, 300~400 mesh are set by the mesh number of filter screen, filtered water body can be made
Reach discharge standard.
The second object of the present invention is to provide a kind of municipal wastewater processing method, and the advantage is that can effectively remove road
The advantages of sundries and organic pollutant in sewage, raising sewage treating efficiency.
To achieve the above object, the present invention provides the following technical scheme that a kind of municipal wastewater processing method, including it is following
Step:
S1, first filtering: by water inlet pipe by road sewage transport to waste water treatment box, road sewage is removed by filter screen
The sundries of interior doping；
S2, primary deposition: by outlet pipe by the sewage transport in waste water treatment box to the first sedimentation basin, pass through the first sedimentation basin
Road sewage precipitate within 2~3 hours, so that the insoluble contamination precipitation in road sewage is in the bottom of the first sedimentation basin；
The road sewage transport on the first sedimentation basin upper layer to anaerobic pond is carried out anaerobic digestion, when anaerobic digestion by S3, anaerobic digestion
Between be 8~9 hours；
S4, UV photocatalysis Decomposition: the road sewage after anaerobic digestion is passed through in photocatalysis Decomposition pond, under the irradiation of UV light with
And degradation treatment is carried out under the catalytic action of titanium dioxide, the resolving time is 1~2 hour；
S5, secondary precipitation: it by the road sewage transport of fully reacting in photocatalysis Decomposition pond into the second sedimentation basin, staticly settles
2~4 hours；
S6, secondary filter: the road sewage on the second sedimentation basin upper layer is passed through filtering ponds, passes through consolidating in filtering ponds filter sewage
Body suspended matter.
By using above-mentioned technical proposal, at work, water inlet pipe is first passed through by road sewage transport to waste water treatment box
It is interior, the sundries adulterated in road sewage is removed under the action of filter screen；Pass through outlet pipe again for the sewage in waste water treatment box
It is transported in the first sedimentation basin, so that the insoluble contamination precipitation in road sewage is in the bottom of the first sedimentation basin；Then, by
The road sewage transport on one sedimentation basin upper layer carries out anaerobic digestion to anaerobic pond, and the anaerobic digestion time is 8~9 hours, makes to attain the Way
Organic matter in the sewage of road decomposes and generates methane and carbon dioxide etc.；Then, first the road sewage after anaerobic digestion is passed through
In photocatalysis Decomposition pond, degradation treatment, resolving time 1 are carried out under the irradiation of UV light and under the catalytic action of titanium dioxide
~2 hours, make to be difficult to biodegradable larger molecular organics chain rupture in road sewage；Again by fully reacting in photocatalysis Decomposition pond
Road sewage transport into the second sedimentation basin, staticly settle 2~4 hours, keep insoluble impurity in road sewage sufficiently heavy
It forms sediment；Finally, the road sewage on the second sedimentation basin upper layer is passed through filtering ponds, it is outstanding to filter the solid in road sewage by filtering ponds
Floating object, i.e. completion sewage disposal process.
To sum up, in the present invention road sewage by first filtering, primary deposition, anaerobic digestion, UV photocatalysis Decomposition, secondary
Precipitating and secondary filter, can effectively remove the sundries and organic pollutant in road sewage.Wherein, using above-mentioned sewage treatment
Case can facilitate staff to fish for the sundries before being deposited in filter screen, improve sewage treating efficiency, improve sewage treating efficiency.
The present invention is further arranged to: adsorbent is added in second sedimentation basin, the adsorbent is selected from polymerization chlorine
Change at least one of aluminium and polyacrylamide.
By using above-mentioned technical proposal, aluminium polychloride and polyacrylamide are a kind of water-soluble inorganic high molecular polymerizations
Object all has stronger bridge formation absorption property, and in hydrolytic process, the physical and chemical processes such as cohesion, absorption and sedimentation can occur,
Effect of settling can preferably be improved.
In conclusion the invention has the following advantages that
1, after sundries is stacked into certain amount, dredger can be driven to rise by starting lifting cylinder, so that dredger will be accumulated
Sundries before filter screen is pulled out, and staff is facilitated to clear up the sundries in waste water treatment box；
2, hidden intracavitary by the way that lifting cylinder to be mounted on, lifting cylinder can be hidden, and then reduce the occupancy of sewage-treatment plant
Space size.In addition, be exposed on the outside of waste water treatment box relative to by lifting cylinder, lifting cylinder is hidden in it is hidden intracavitary,
Erosion of the rainwater to lifting cylinder when can avoid raining is conducive to the service life for improving lifting cylinder；
3, by making road sewage successively by first filtering, primary deposition, anaerobic digestion, UV photocatalysis Decomposition, secondary precipitation
And secondary filter, the sundries and organic pollutant in road sewage can be effectively removed.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view that the present embodiment highlights filter screen；
Fig. 2 is the schematic cross-sectional view that the present embodiment highlights sealing ring.
Description of symbols: 1, waste water treatment box；2, water inlet pipe；3, outlet pipe；4, filter screen；5, dredger；6, hidden plate；
7, hidden chamber；8, lifting cylinder；9, connecting hole；10, sealing ring；11, limit plate；12, torsional spring；13, travel switch；14, stroke
Trigger board.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
A kind of municipal wastewater processing unit, as shown in Figure 1, including waste water treatment box 1, water inlet pipe 2 and outlet pipe 3, water inlet
Pipe 2 and outlet pipe 3 are located at the top and bottom of foul water tank, and water inlet pipe 2 and outlet pipe 3 are and inside waste water treatment box 1
Connection, one end that outlet pipe 3 is connected to waste water treatment box 1 are equipped with the filter screen 4 that mesh number is 400 mesh, can be blocked by filter screen 4
The phenomenon that cutting the sundries adulterated in sewage, preventing outlet pipe 3 from blocking.
As shown in Figure 1, 2, the dredger 5 for fishing for the sundries before being deposited in filter screen 4 is installed in waste water treatment box 1,
The outer wall of dredger 5 and the inner wall of waste water treatment box 1 fit, and the bottom of waste water treatment box 1 is fixed with hidden plate 6, hidden plate 6 with
Hidden chamber 7 is formed between the bottom wall of waste water treatment box 1, lifting cylinder 8 is installed in hidden chamber 7, and the piston rod of lifting cylinder 8 is worn
Hidden plate 6 is crossed to connect with the bottom of dredger 5.Wherein, since the inner wall of the outer wall and waste water treatment box 1 of dredger 5 fits, thus
Filter screen 4 can be made to intercept sundries to be completely in dredger 5.
Further, it is provided with the connecting hole 9 passed through for the piston rod of lifting cylinder 8 on hidden plate 6, consolidates in connecting hole 9
Surely there is the sealing ring 10 on the outside of the piston rod of lifting cylinder 8, the sewage in waste water treatment box 1 can be prevented by sealing ring 10
The use of lifting cylinder 8 is influenced into hidden chamber 7.
As shown in Fig. 2, the upper end-face edge of waste water treatment box 1 is equipped with the limit plate 11 right above hidden plate 6, pass through
Limit plate 11 can guarantee dredger 5 when rising to extreme higher position still in waste water treatment box 1, effectively avoiding on 5 outer wall of dredger
Sewage be dropped in the outside of waste water treatment box 1.Wherein, since dredger 5 needs to be adapted with the inner wall shape of waste water treatment box 1,
The middle part of dredger 5 has a plane i.e. in the present embodiment, and limit plate 11 is located at right above hidden plate 6 just, i.e., when dredger 5 exists
When rising to extreme higher position, which can abut against with limit plate 11, to effectively increase the contact surface of limit plate 11 Yu dredger 5
Product, so that the limit effect of limit plate 11 is more preferably.
It is noted that limit plate 11 and waste water treatment box 1 are rotatablely connected, and limit plate 11 and waste water treatment box 1
Torsional spring 12 is installed at rotation connection.It therefore, can be by limit plate 11 when dredger 5 picks up the sundries before being deposited in filter screen 4
Overturning facilitates staff to take out the sundries in dredger 5 to the state perpendicular with 1 upper surface of waste water treatment box；Wherein, when
When limit plate 11 loses external force, under the action of torsional spring 12, limit plate 11 can automatically restore to 1 upper end of waste water treatment box
The parallel state in face, and then can save the time of the overturning of limit plate 11 to horizontal position again.
As shown in Fig. 2, the lower end surface of limit plate 11 is equipped with the travel switch 13 being electrically connected with lifting cylinder 8, dredger 5
Upper end-face edge be fixed with the stroke trigger board 14 of face travel switch 13, when stroke trigger board 14 and travel switch 13 abut against
When, the piston rod of lifting cylinder 8 can be automatically stopped movement, realize automation, improve working efficiency.
The course of work of the invention and have the beneficial effect that: when the sundries in waste water treatment box 1 be stacked into certain amount it
Afterwards, start lifting cylinder 8, dredger 5 is driven to rise, when stroke trigger board 14 and travel switch 13 abut against, lifting cylinder 8
Piston rod is automatically stopped movement, at this point, the pulling out the sundries before being deposited in filter screen 4 of dredger 5, and staff only needs to clear up
Sundries in dredger 5.
To sum up, it drives dredger 5 to rise or fall by lifting cylinder 8, staff can be facilitated to fish for and be deposited in filter screen 4
Preceding sundries improves sewage treating efficiency.
A kind of municipal wastewater processing method, comprising the following steps:
S1, first filtering: by water inlet pipe 2 by road sewage transport to waste water treatment box 1, road is removed by filter screen 4
The sundries adulterated in sewage；
S2, primary deposition: by outlet pipe 3 by the sewage transport in waste water treatment box 1 to the first sedimentation basin, pass through the first precipitating
Pond precipitate within 3 hours to road sewage, so that the insoluble contamination precipitation in road sewage is in the bottom of the first sedimentation basin；
The road sewage transport on the first sedimentation basin upper layer to anaerobic pond is carried out anaerobic digestion, when anaerobic digestion by S3, anaerobic digestion
Between be 9 hours so that the organic matter in road sewage decomposes and generates methane and carbon dioxide etc.；
S4, UV photocatalysis Decomposition: the road sewage after anaerobic digestion is passed through in photocatalysis Decomposition pond, under the irradiation of UV light with
And degradation treatment is carried out under the catalytic action of titanium dioxide, the resolving time is 2 hours, makes to be difficult in road sewage biodegradable
Larger molecular organics chain rupture；
S5, secondary precipitation: it by the road sewage transport of fully reacting in photocatalysis Decomposition pond into the second sedimentation basin, staticly settles
4 hours, precipitate the insoluble impurity in road sewage sufficiently；
S6, secondary filter: the road sewage on the second sedimentation basin upper layer is passed through filtering ponds, passes through consolidating in filtering ponds filter sewage
Body suspended matter.
It is noted that being added with adsorbent in the second sedimentation basin, adsorbent is selected from aluminium polychloride and polyacrylamide
At least one of amine, adsorbent is aluminium polychloride in the present embodiment, and aluminium polychloride is a kind of water-soluble inorganic macromolecule
Polymer has stronger bridge formation absorption property, and in hydrolytic process, the physical chemistry mistakes such as cohesion, absorption and sedimentation can occur
Journey can preferably improve effect of settling.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to restrict the invention, all in design structure of the invention
Within think of, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of municipal wastewater processing unit, including waste water treatment box (1), water inlet pipe (2) and outlet pipe (3), the water inlet pipe
(2) it is connected to the waste water treatment box (1) inside with outlet pipe (3), the outlet pipe (3) is connected to waste water treatment box (1)
One end be provided with filter screen (4), it is characterised in that: be provided in the waste water treatment box (1) for fish for be deposited in it is described
The inner wall of the dredger (5) of sundries before filter screen (4), the outer wall and the waste water treatment box (1) of the dredger (5) fits,
The lifting cylinder (8) for driving the dredger (5) to pump is provided on the waste water treatment box (1).
2. a kind of municipal wastewater processing unit according to claim 1, it is characterised in that: the waste water treatment box (1)
Bottom is provided with hidden plate (6), is formed hidden chamber (7) between the hidden plate (6) and the bottom wall of waste water treatment box (1), described
Lifting cylinder (8) setting in the hidden chamber (7), and the piston rod of the lifting cylinder (8) pass through hidden plate (6) with it is described
The bottom of dredger (5) connects.
3. a kind of municipal wastewater processing unit according to claim 2, it is characterised in that: be arranged on the hidden plate (6)
There is the connecting hole (9) that the piston rod for the lifting cylinder (8) passes through, is provided in the connecting hole (9) positioned at the lifting
Sealing ring (10) on the outside of the piston rod of cylinder (8).
4. a kind of municipal wastewater processing unit according to claim 3, it is characterised in that: the waste water treatment box (1)
Upper end-face edge is provided with the limit plate (11) right above the hidden plate (6).
5. a kind of municipal wastewater processing unit according to claim 4, it is characterised in that: the lower end of the limit plate (11)
Face is provided with the travel switch (13) being electrically connected with lifting cylinder (8), and the upper end-face edge of the dredger (5) is provided with face institute
The stroke trigger board (14) for stating travel switch (13), when the stroke trigger board (14) abuts against with the travel switch (13)
When, the piston rod stop motion of the lifting cylinder (8).
6. a kind of municipal wastewater processing unit according to claim 4, it is characterised in that: the limit plate (11) with it is described
Waste water treatment box (1) rotation connection.
7. a kind of municipal wastewater processing unit according to claim 6, it is characterised in that: the limit plate (11) with it is described
Torsional spring (12) are provided at the rotation connection of waste water treatment box (1).
8. a kind of municipal wastewater processing unit according to claim 1, it is characterised in that: the mesh number of the filter screen (4)
For 300~400 mesh.
9. a kind of municipal wastewater processing method, it is characterised in that: the following steps are included:
S1, first filtering: it by water inlet pipe (2) by road sewage transport to waste water treatment box (1), is removed by filter screen (4)
Remove the sundries adulterated in road sewage；
S2, primary deposition: the sewage transport in waste water treatment box (1) is passed through first to the first sedimentation basin by outlet pipe (3)
Sedimentation basin precipitate within 2~3 hours to road sewage, so that the insoluble contamination precipitation in road sewage is in the first sedimentation basin
Bottom；
The road sewage transport on the first sedimentation basin upper layer to anaerobic pond is carried out anaerobic digestion, when anaerobic digestion by S3, anaerobic digestion
Between be 8~9 hours；
S4, UV photocatalysis Decomposition: the road sewage after anaerobic digestion is passed through in photocatalysis Decomposition pond, under the irradiation of UV light with
And degradation treatment is carried out under the catalytic action of titanium dioxide, the resolving time is 1~2 hour；
S5, secondary precipitation: it by the road sewage transport of fully reacting in photocatalysis Decomposition pond into the second sedimentation basin, staticly settles
2~4 hours；
S6, secondary filter: the road sewage on the second sedimentation basin upper layer is passed through filtering ponds, passes through consolidating in filtering ponds filter sewage
Body suspended matter.
10. a kind of municipal wastewater processing method according to claim 9, it is characterised in that: add in second sedimentation basin
Added with adsorbent, the adsorbent is selected from least one of aluminium polychloride and polyacrylamide.
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