CN113045067A - Rural domestic sewage annular ecological ditch clean system - Google Patents
Rural domestic sewage annular ecological ditch clean system Download PDFInfo
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- CN113045067A CN113045067A CN202110335977.9A CN202110335977A CN113045067A CN 113045067 A CN113045067 A CN 113045067A CN 202110335977 A CN202110335977 A CN 202110335977A CN 113045067 A CN113045067 A CN 113045067A
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- domestic sewage
- flocculation
- electrolysis
- disinfection
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- 239000010865 sewage Substances 0.000 title claims abstract description 63
- 238000005189 flocculation Methods 0.000 claims abstract description 41
- 230000016615 flocculation Effects 0.000 claims abstract description 40
- 238000001179 sorption measurement Methods 0.000 claims abstract description 32
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 30
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 29
- 238000000746 purification Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000010840 domestic wastewater Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000000645 desinfectant Substances 0.000 claims description 10
- 239000008394 flocculating agent Substances 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- 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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a rural domestic sewage annular ecological ditch purification system which comprises an annular ditch body, wherein the annular ditch body comprises an adsorption area, a flocculation area, an electrolysis area and a disinfection area, the adsorption area, the flocculation area, the electrolysis area and the disinfection area are sequentially connected at the head, when external domestic sewage is introduced into the annular ditch body, the domestic sewage is introduced from the adsorption area, and the domestic sewage is sequentially discharged from the disinfection area through the adsorption area, the flocculation area, the electrolysis area and the disinfection area. The integrated sewage treatment device has the advantages of compact structure, small occupied space, integrated design, good treatment effect, capability of better adapting to treatment of rural domestic sewage, capability of recycling the wastewater and reduction of the damage of the domestic sewage to the environment.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a rural domestic sewage annular ecological ditch purification system.
Background
With the development of social economy, people pay more and more attention to the environmental governance. However, with the progress of urbanization, the treatment of domestic sewage becomes increasingly important, and the treatment effect of the traditional domestic sewage treatment mode needs to be improved.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a rural domestic sewage annular ecological ditch purification system,
the sewage treatment device comprises an annular ditch body, wherein the annular ditch body comprises an adsorption area, a flocculation area, an electrolysis area and a disinfection area, the adsorption area, the flocculation area, the electrolysis area and the disinfection area are sequentially connected at the head, when external domestic sewage is introduced into the annular ditch body, the domestic sewage is introduced from the adsorption area, and the domestic sewage sequentially passes through the adsorption area, the flocculation area, the electrolysis area and the disinfection area and is discharged from the disinfection area;
baffles are arranged in the adsorption area, the baffles are obliquely arranged on the front inner side wall and the rear inner side wall of the adsorption area, the baffles are divided into a front baffle and a rear baffle, the front baffles are uniformly arranged at intervals, the rear baffles are uniformly arranged at intervals, the end parts of the front baffles and the rear baffles form an S-shaped passage from left to right, the S-shaped passage is convenient for domestic sewage in the adsorption area to flow, and activated carbon layers are arranged on the surfaces of the front baffles and the rear baffles;
the side wall of the flocculation area is provided with a feeding pipe, a flocculating agent can be introduced into the feeding pipe, the flocculating agent can carry out flocculation and precipitation treatment on the domestic sewage in the flocculation area, the bottom of the flocculation area is provided with a bottom plate, a motor is arranged below the bottom plate, and the motor can drive the bottom plate to reciprocate up and down;
the electrolytic zone comprises a plate electrode arranged in the electrolytic zone, the plate electrode is electrically connected with an external power supply through a lead, the plate electrode is electrolyzed to generate a large amount of micro bubbles of hydrogen and oxygen, and the bubbles float together after absorbing suspended matters in domestic wastewater, so that the effect of air floatation separation is achieved;
the side wall of the disinfection area is provided with a material passing pipe, a disinfectant can be introduced into the material passing pipe, and the disinfectant carries out disinfection and sterilization treatment on the domestic wastewater in the disinfection area.
Preferably, be provided with the edulcoration device in the electrolysis district, the edulcoration device can with the suspended solid on domestic wastewater surface absorbs in the electrolysis district, the discharge gate of edulcoration device passes through pipeline and external intercommunication, the edulcoration device is including cursory, drainage device, water pump, cursory can float in the surface of water, be used for the edulcoration device provides buoyancy, the drainage device can get into the suspended solid on domestic wastewater surface and water guide to filter the suspended solid, the water pump provides power during the drainage of drainage device.
Preferably, the drainage device includes drainage mouth, filter bag, leading pipe, the drainage mouth sets up to the toper structure, the leading pipe with the water pump intercommunication, the filter bag sets up the drainage mouth with between the leading pipe, the filter bag can filter the collection to the suspended solid.
Preferably, the electrode plate is a graphite, iron or aluminum material.
Preferably, in order to improve the electrolysis efficiency of the domestic wastewater in the electrolysis zone, the electrode plates are arranged into a plurality of groups.
Preferably, the disinfectant can be sodium hypochlorite.
Preferably, the bottom plate surface has evenly seted up a plurality of recess, all is provided with the collecting box in a plurality of the recess, the collecting box can be used to collect the flocculation district the impurity under the flocculation sediment, the collecting box can be dismantled and set up in the recess.
Preferably, in order to improve the stability of the collecting box in the groove, a locking mechanism is arranged between the collecting boxes and the groove, and a handle is arranged on the collecting box and is convenient for taking the collecting box.
Preferably, in order to prevent the hands of the operator from slipping, the handle is provided with anti-slip lines.
The invention has the beneficial effects
The integrated sewage treatment device has the advantages of compact structure, small occupied space, integrated design, good treatment effect, capability of better adapting to treatment of rural domestic sewage, capability of recycling the wastewater and reduction of the damage of the domestic sewage to the environment.
Drawings
FIG. 1 is a top view of the structure of the present invention.
FIG. 2 is a structural section view of a flocculation zone of the invention in a front view.
Fig. 3 is a schematic structural view of the drainage device of the present invention.
Description of reference numerals: 1-annular groove body, 2-adsorption zone, 3-flocculation zone, 4-electrolysis zone, 5-disinfection zone, 6-front baffle, 7-rear baffle, 8-feeding pipe, 9-motor, 10-bottom plate, 11-electrode plate, 12-feeding pipe, 13-float, 14-drainage device, 15-water pump, 16-drainage port, 17-filter bag, 18-drainage pipe and 19-groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in figures 1-3, the invention provides a rural domestic sewage annular ecological ditch purification system,
the annular ditch comprises an annular ditch body 1, wherein the annular ditch body 1 comprises an adsorption area 2, a flocculation area 3, an electrolysis area 4 and a disinfection area 5, the adsorption area 2, the flocculation area 3, the electrolysis area 4 and the disinfection area 5 are sequentially connected at the head, when external domestic sewage is introduced into the annular ditch body 1, the domestic sewage is introduced from the adsorption area 2, and the domestic sewage is sequentially discharged from the disinfection area 5 through the adsorption area 2, the flocculation area 3, the electrolysis area 4 and the disinfection area 5;
baffles are arranged in the adsorption region 2, are obliquely arranged on the front inner side wall and the rear inner side wall of the adsorption region 2, are divided into a front baffle 6 and a rear baffle 7, are uniformly arranged at intervals between the front baffles 6, are uniformly arranged at intervals between the rear baffles 7, form an S-shaped passage from left to right at the end parts of the front baffle 6 and the rear baffle 7, are convenient for domestic sewage in the adsorption region 2 to flow through, and are respectively provided with an activated carbon layer on the surfaces of the front baffle 6 and the rear baffle 7;
a feeding pipe 8 is arranged on the side wall of the flocculation area 3, a flocculating agent can be introduced into the feeding pipe 8, the flocculating agent can perform flocculation precipitation treatment on the domestic sewage in the flocculation area 3, a bottom plate 10 is arranged at the bottom of the flocculation area 3, a motor 9 is arranged below the bottom plate 10, and the motor 9 can drive the bottom plate 10 to reciprocate up and down;
the electrolytic zone 4 comprises electrode plates 11 arranged in the electrolytic zone 4, the electrode plates 11 are made of graphite, iron or aluminum materials, in order to improve the electrolytic efficiency of the domestic wastewater in the electrolytic zone 4, the electrode plates 11 are arranged into a plurality of groups, the electrode plates 11 are electrically connected with an external power supply through leads, the electrode plates 11 are electrolyzed to generate a large amount of micro bubbles of hydrogen and oxygen, and the micro bubbles float together after absorbing suspended matters in the domestic wastewater, thereby playing a role in air flotation separation;
a material passing pipe 12 is arranged on the side wall of the disinfection area 5, a disinfectant can be introduced into the material passing pipe 12, the disinfectant can be used for disinfecting and sterilizing the domestic wastewater in the disinfection area 5, the disinfectant can be sodium hypochlorite,
an impurity removal device is arranged in the electrolysis zone 4, the impurity removal device can absorb suspended matters on the surface of domestic wastewater in the electrolysis zone 4, a discharge port of the impurity removal device is communicated with the outside through a pipeline, the impurity removal device comprises a float 13, a drainage device 14 and a water pump 15, the float 13 can float on the water surface and is used for providing buoyancy for the impurity removal device, the drainage device 14 can guide the suspended matters on the surface of the domestic wastewater and water to enter so as to filter the suspended matters, the water pump 15 provides power for the drainage of the drainage device 14, the drainage device 14 comprises a drainage port 16, a filter bag 17 and a water guide pipe 18, the drainage port 16 is of a conical structure, the conical structure is convenient for the suspended matters to flow better, the water guide pipe 18 is communicated with the water pump 15, the filter bag 17 is arranged between the drainage port 16 and the water guide pipe 18, the filter bag 17 can filter and collect suspended matters,
domestic sewage is introduced into the annular ditch body 1 through the adsorption zone 2, the domestic sewage sequentially passes through the adsorption zone 2, the flocculation zone 3, the electrolysis zone 4 and the disinfection zone 5, when the domestic sewage passes through the adsorption zone 2, because the adsorption zone 2 is internally and obliquely provided with the front baffle 6 and the rear baffle 7, the flow rate of the domestic sewage can be reduced by the front baffle 6 and the rear baffle 7, the adsorption efficiency of the activated carbon layers on the front baffle 6 and the rear baffle 7 is greatly improved, and the domestic sewage is purified in one step;
domestic sewage treated by the adsorption zone 2 sequentially flows to the flocculation zone 3, a flocculating agent is introduced into the flocculation zone 3 through the inlet pipe 8, the flocculating agent can perform flocculation precipitation treatment on the domestic sewage in the flocculation zone 3, so that secondary purification treatment on the domestic sewage is realized, a baffle plate is arranged in the flocculation zone 3, the baffle plate can reciprocate up and down through a motor 9, and the wastewater in the flocculation zone 3 can be driven to surge, so that the contact area between the wastewater and the flocculating agent is increased, the flocculation efficiency of the wastewater is improved, the flocculated precipitate is precipitated into a collecting box on the baffle plate, a worker can take out the precipitate at regular time for cleaning, the manual cleaning difficulty is greatly reduced, and the cleaning efficiency of an operator is improved;
domestic sewage treated by the flocculation zone 3 flows into the electrolysis zone 4 in sequence, the electrode plates 11 in the electrolysis zone 4 are electrolyzed to generate a large amount of micro bubbles of hydrogen and oxygen, the bubbles float together after adsorbing suspended matters in the domestic sewage to play a role in air floatation separation, and an impurity removal device is arranged in the electrolysis zone 4 and can absorb the suspended matters on the surface of the domestic sewage in the electrolysis zone 4, so that the domestic sewage is purified for three times, and the purification efficiency of the domestic sewage is further improved;
domestic sewage treated by the electrolysis zone 4 flows into the disinfection zone 5 in sequence, and a disinfectant is introduced into the disinfection zone 5 through the vent pipe 12 to disinfect and sterilize the domestic sewage, so that the domestic sewage is purified four times, and the harm to the environment and the human health is avoided;
the integrated sewage treatment device has the advantages of compact structure, small occupied space, integrated design, good treatment effect, capability of better adapting to treatment of rural domestic sewage, capability of recycling wastewater and reduction of damage of the domestic sewage to the environment;
a plurality of recess 19 has evenly been seted up on bottom plate 10 surface, a plurality of all be provided with the collecting box in the recess 19, the collecting box can be used for collecting flocculation district 3 the impurity under the flocculation and precipitation, the collecting box can be dismantled the setting and be in the recess 19, for improving the collecting box is in the steadiness in the recess 19, the recess in be provided with latched device between the collecting box, be provided with the handle on the collecting box, the handle is convenient for taking of collecting box, for preventing that operating personnel hand skids, be provided with anti-skidding line on hand.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. A rural domestic sewage annular ecological ditch purification system, which is characterized in that,
the sewage treatment device comprises an annular ditch body, wherein the annular ditch body comprises an adsorption area, a flocculation area, an electrolysis area and a disinfection area, the adsorption area, the flocculation area, the electrolysis area and the disinfection area are sequentially connected at the head, when external domestic sewage is introduced into the annular ditch body, the domestic sewage is introduced from the adsorption area, and the domestic sewage sequentially passes through the adsorption area, the flocculation area, the electrolysis area and the disinfection area and is discharged from the disinfection area;
baffles are arranged in the adsorption area, the baffles are obliquely arranged on the front inner side wall and the rear inner side wall of the adsorption area, the baffles are divided into a front baffle and a rear baffle, the front baffles are uniformly arranged at intervals, the rear baffles are uniformly arranged at intervals, the end parts of the front baffles and the rear baffles form an S-shaped passage from left to right, the S-shaped passage is convenient for domestic sewage in the adsorption area to flow, and activated carbon layers are arranged on the surfaces of the front baffles and the rear baffles;
the side wall of the flocculation area is provided with a feeding pipe, a flocculating agent can be introduced into the feeding pipe, the flocculating agent can carry out flocculation and precipitation treatment on the domestic sewage in the flocculation area, the bottom of the flocculation area is provided with a bottom plate, a motor is arranged below the bottom plate, and the motor can drive the bottom plate to reciprocate up and down;
the electrolytic zone comprises a plate electrode arranged in the electrolytic zone, the plate electrode is electrically connected with an external power supply through a lead, the plate electrode is electrolyzed to generate a large amount of micro bubbles of hydrogen and oxygen, and the bubbles float together after absorbing suspended matters in domestic wastewater, so that the effect of air floatation separation is achieved;
the side wall of the disinfection area is provided with a material passing pipe, a disinfectant can be introduced into the material passing pipe, and the disinfectant carries out disinfection and sterilization treatment on the domestic wastewater in the disinfection area.
2. The rural domestic sewage annular ecological ditch purification system of claim 1,
be provided with the edulcoration device in the electrolysis district, the edulcoration device can with the suspended solid on domestic wastewater surface absorbs in the electrolysis district, the discharge gate of edulcoration device passes through pipeline and external intercommunication, the edulcoration device is including cursory, drainage device, water pump, cursory can float in the surface of water, be used for the edulcoration device provides buoyancy, the drainage device can get into the suspended solid on domestic wastewater surface and water guide to filter the suspended solid, the water pump provides power during the drainage of drainage device.
3. The rural domestic sewage annular ecological ditch purification system of claim 2,
the drainage device comprises a drainage port, a filter bag and a water diversion pipe, wherein the drainage port is of a conical structure, the water diversion pipe is communicated with the water pump, the filter bag is arranged between the drainage port and the water diversion pipe, and the filter bag can filter and collect suspended matters.
4. The rural domestic sewage annular ecological ditch purification system of claim 1,
the electrode plate is made of graphite, iron or aluminum material.
5. The rural domestic sewage annular ecological ditch purification system of claim 4,
in order to improve the electrolysis efficiency of the domestic wastewater in the electrolysis zone, the electrode plates are arranged into a plurality of groups.
6. The rural domestic sewage annular ecological ditch purification system of claim 1,
the disinfectant can be sodium hypochlorite.
7. The rural domestic sewage annular ecological ditch purification system of claim 1,
the bottom plate surface has evenly seted up a plurality of recess, and a plurality of all be provided with the collecting box in the recess, the collecting box can be used to collect the flocculation district the impurity under the flocculation sediment, the collecting box can be dismantled and set up in the recess.
8. The rural domestic sewage annular ecological ditch purification system of claim 7,
in order to improve the stability of the collecting box in the groove, the groove is provided with a locking mechanism between the collecting boxes, the collecting box is provided with a handle, and the collecting box is convenient to take by the handle.
9. The rural domestic sewage annular ecological ditch purification system of claim 8,
in order to prevent the hands of the operator from slipping, anti-slip lines are arranged on the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110335977.9A CN113045067A (en) | 2021-03-29 | 2021-03-29 | Rural domestic sewage annular ecological ditch clean system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110335977.9A CN113045067A (en) | 2021-03-29 | 2021-03-29 | Rural domestic sewage annular ecological ditch clean system |
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| CN113045067A true CN113045067A (en) | 2021-06-29 |
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| CN202110335977.9A Withdrawn CN113045067A (en) | 2021-03-29 | 2021-03-29 | Rural domestic sewage annular ecological ditch clean system |
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