CN110526316A - A kind of water treatment facilities and its processing method - Google Patents
A kind of water treatment facilities and its processing method Download PDFInfo
- Publication number
- CN110526316A CN110526316A CN201911050494.3A CN201911050494A CN110526316A CN 110526316 A CN110526316 A CN 110526316A CN 201911050494 A CN201911050494 A CN 201911050494A CN 110526316 A CN110526316 A CN 110526316A
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- China
- Prior art keywords
- water
- tank
- water inlet
- heating tube
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/046—Treatment of water, waste water, or sewage by heating by distillation or evaporation under vacuum produced by a barometric column
-
- 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
- C02F2301/06—Pressure conditions
- C02F2301/063—Underpressure, vacuum
Abstract
The present invention provides a kind of water treatment facilities, heat is provided by the first air compressor, and it is realized with condenser internal refrigeration storage agent general, reduce heat energy loss, improve energy cycling and reutilization efficiency, make 32 DEG C of boiling point that water is reached in condensate draining by vacuum jet device using high flow rate water, to vaporize liquid water, it is ensure that simultaneously into the Totally enclosed vacuum heating ultralow temperature evaporation inside water tank, the entire circulation of condensation, the operating process of whole equipment will not generate secondary air pollution, simultaneously, so that water is become gaseous state from liquid using ultralow temperature evaporation and reaches purification, concentration, separating effect, energy conservation also ensures safety simultaneously, after evaporation vapor becomes gas from liquid, enter condenser by helical vent road, the density in vapor is mixed in using the centrifugal force place of efficiently separating in helical vent road to steam compared with water The larger other compositions of gas, so as to obtain further pure condensed water.
Description
Technical field
The present invention relates to sewage treatment fields, specifically, being to be related to a kind of water treatment facilities and its processing method.
Background technique
Sewage treatment is to make sewage reach the water quality requirement for being discharged into a certain water body or reusing to purify it
Process.It is each that sewage treatment is widely used in building, agricultural, traffic, the energy, petrochemical industry, environmental protection, urban landscape, medical treatment, food and drink etc.
The life of common people is also more and more come into a field.Water process refers to reach water quality and centainly adopt using standard
The physics that takes, chemical measure.The purpose of water process is to improve water quality, makes up to certain water standard.By process object or mesh
Difference, have Water purification and wastewater treatment two major classes.Wherein, wastewater treatment has again at sanitary sewage disposal and industrial wastewater
Point of reason.Water process produces developing industry, improves product quality, protection human environment, maintaining ecological balance with important meaning
Justice.
Negative pressure evaporation technology is a kind of effectively energy-efficient water treatment technology, and existing vaporising device is commonly high-temperature steam
Evaporation carries out the purification, concentration and separation of sewage, easily causes the temperature of complete equipment high, there are security risks, traditional
Heat-supplying mode is steam or electric heating, and loss is high, and in existing MVR steam heating evaporation, steam air compressor machine heating evaporation all can
Secondary air pollution is generated, and is mostly used in existing process tank and directly obtains vapor with the method for heating, can be pressed from both sides wherein
Other larger particulate matters of miscellaneous some density ratio vapor, the condensed water made need to be filtered again, complex steps.
Summary of the invention
It is an object of the invention to overcome the shortcoming of above-mentioned traditional technology, a kind of heating safety, whole system are provided
Thermal energy realize the water treatment facilities recycle, do not generate secondary pollution, may separate out particulate matter in evaporation.
The purpose of the present invention is what is reached by following technical measures: a kind of water treatment facilities, it is characterised in that: including
Water inlet tank and condensate draining are equipped with condenser between water inlet tank and the condensate draining, lead between water inlet tank and the condenser
The connection of the first water pipe is crossed, is connected between the condenser and condensate draining by the second water pipe, the water inlet pot bottom, which is equipped with, to be added
Heat pipe, second water pipe are equipped with vacuum jet device, and the vacuum jet device is connected with high pressured water circuling pump, the cycle of higher pressure
The lower part of the water inlet connection condensate draining of water pump.
Sewage flows into water inlet tank, and water inlet tank is equipped with heating tube, is heated by heating tube to sewage, the vapor of generation
Condenser is entered by the first water pipe, vapor condensation becomes liquid water, then is flowed into inside condensate draining by the second water pipe, condenses
The vacuum jet device being equipped between device and condensate draining makes to be in low pressure shape into inside water tank by the effect of high pressured water circuling pump
State reaches ultra low temperature state evaporation water, more energy saving, safety to reduce the boiling point of sewage.
As a preferred embodiment, the import of the heating tube is connected with the first air compressor, the first air pressure
The refrigerant outlet side of contracting machine connects the heating tube, and the refrigerant outlet connection of refrigerant suction side and condenser is described to add
The outlet of heat pipe and the refrigerant inlet of condenser connect.
As a preferred embodiment, the heating tube includes the first heating tube and the second heating tube, first heating tube
It is arranged in series with the second heating tube, first heating tube is plate-like in the horizontal direction, and second heating tube is along vertical
The helical form in direction.
As a preferred embodiment, it is equipped with helical vent road inside the water inlet tank, the helical vent road is by water inlet tank
Inner wall and the spiral guide blade inside water inlet tank are formed.
As a preferred embodiment, first water pipe is connect with the top in helical vent road, and first water pipe is equipped with
Leaving air control valve.
As a preferred embodiment, the top of the water inlet tank is equipped with water inlet, and the water inlet is equipped with water inlet control valve,
The bottom of the water inlet tank is equipped with sewage draining exit, and the sewage draining exit is equipped with blowdown control valve.
As a preferred embodiment, the water inlet tank is equipped with pressure modulating opening, and the pressure modulating opening is equipped with Regulation Control valve.
As a preferred embodiment, electrically heated rod and refrigerator pipes, the refrigerator pipes connection are equipped with inside the condensate draining
There is the second air compressor.
As a preferred embodiment, the condensate draining is equipped with water level restricted entry, and the water level restricted entry passes through third water
Pipe is connected with header tank.
A kind of processing method of water treatment facilities, characterized by the following steps:
1) water inlet control valve is opened, sewage is entered from the inlet into water tank, and water inlet control valve is closed when reaching the water of setting；
2) leaving air control valve is opened, and sewage is heated in the work of the first air compressor, while vacuum jet device and high pressure are followed
Ring water pump is also started to work, and tank of intaking is pumped into negative pressure state by vacuum jet device；
3) water evaporation intake in tank is vapor, and vapor is condensed into liquid water through condenser and flows into condensate draining；
4) sewage treatment intake in tank finishes, and opening Regulation Control valve makes to return to normal pressure state into the pressure in water tank；
5) Regulation Control valve is closed, water inlet control valve is opened, sewage is again flowed into being handled in water tank, is repeated in.
By adopting the above-described technical solution, compared with prior art, the invention has the advantages that the present invention provides one kind
Water treatment facilities provide heat by the first air compressor, and general with condenser internal refrigeration storage agent realization, reduce heat
It can be lost, improve energy cycling and reutilization efficiency, make to reach in condensate draining by vacuum jet device using high flow rate water
32 DEG C of the boiling point of water to vaporize liquid water, while ensure that into the evaporation of Totally enclosed vacuum heating ultralow temperature, the condensation inside water tank
Entire circulation, the operating process of whole equipment will not generate secondary air pollution, meanwhile, make water by liquid using ultralow temperature evaporation
State becomes gaseous state and reaches purification, concentration, separating effect, and energy conservation also ensures safety simultaneously, and evaporation vapor is become from liquid
After gas, enters condenser by helical vent road, be mixed in water using the centrifugal force place of efficiently separating in helical vent road
Density in the steam other compositions larger compared with vapor, so as to obtain further pure condensed water.
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
Detailed description of the invention
Attached drawing 1 is a kind of overall structure diagram of water treatment facilities of the present invention.
Attached drawing 2 is a kind of water inlet jar structure schematic diagram of water treatment facilities of the present invention.
Attached drawing 3 is a kind of helical vent road structural schematic diagram of water treatment facilities of the present invention.
Attached drawing 4 is a kind of first heating-pipe structure schematic diagram of water treatment facilities of the present invention.
Attached drawing 5 is a kind of second heating-pipe structure schematic diagram of water treatment facilities of the present invention.
Specific embodiment
Embodiment: as shown in attached drawing 1-5, a kind of water treatment facilities, including water inlet tank 1 and condensate draining 2, the water inlet tank
It is equipped with condenser 3 between 1 and condensate draining 2, is connected between the water inlet tank 1 and condenser 3 by the first water pipe 4, it is described cold
It is connected between condenser 3 and condensate draining 2 by the second water pipe 5,1 bottom of water inlet tank is equipped with heating tube, second water pipe 5
Equipped with vacuum jet device 8, the vacuum jet device 8 is connected with high pressured water circuling pump 9, the water inlet of the high pressured water circuling pump 9
Connect the lower part of condensate draining 2.Sewage flows into water inlet tank 1, and water inlet tank is equipped with heating tube, is added by heating tube to sewage
The vapor of heat, generation enters condenser 3 by the first water pipe 4, and vapor condensation becomes liquid water, then is flowed by the second water pipe 5
To inside condensate draining 2, the vacuum jet device 8 being equipped between condenser 3 and condensate draining 2 passes through the work of high pressured water circuling pump 9
With making into low-pressure state, to reduce the boiling point of sewage, reaching ultra low temperature state evaporation water inside water tank 1, more energy saving,
Safety.
The import of the heating tube is connected with the first air compressor 10, the refrigerant row of first air compressor 10
Outlet connects the heating tube, and refrigerant suction side is connect with the refrigerant outlet of condenser 3, the outlet connection of the heating tube
The refrigerant inlet of condenser 3 connects.In the present embodiment, refrigerant is using freon, and gas freon is by compressor pressure
Contracting, becomes high temperature and high pressure gas, into heating tube liquidation exothermic reaction to the cold, becomes liquid, so that heating tube be made to reach exothermic mesh
's.It is reached in condenser after liquid freon outflow water inlet tank, evaporation gasification heat absorption becomes gas, while drawing and passing through condensation
The heat of the vapor of device makes to turn cold in condenser, and vapor becomes liquid water outflow, while freon becomes gas from condensation
Device outflow enters compressor starts subsequent cycle.Steam, electrically heated mode are used compared to traditional, and the thermal energy of generation can be with
As the circulation and stress of refrigerant recycles, reduces heat energy loss, improve energy cycling and reutilization efficiency.
As shown in Fig. 2, Fig. 4 and Fig. 5, the heating tube includes the first heating tube 6 and the second heating tube 7, and described first adds
Heat pipe 6 and the second heating tube 7 are arranged in series, and first heating tube 6 is plate-like in the horizontal direction, second heating tube 7
For helical form along the vertical direction.First heating tube 6 is located at the outside of water inlet tank 1, and the second heating tube 7 is located at the interior of water inlet tank 1
Portion, a quarter of 1 height of height Zhan Jinshui tank of the second heating tube 7.Being arranged in series, which can make heat pass sequentially through first, adds
Heat pipe 6 and the second heating tube 7, the first heating tube 6 are located at the outside of water inlet tank, heat, make to the entire bottom of water inlet tank 1
Heat more uniform, the second heating tube 6 had not only been not take up very big 1 inner space of water inlet tank, but also heat can be discharged completely, heat
Amount is completely discharged in water, not will cause the waste of heat, is heated and is carried out in the lower part of water inlet tank 1, and heat moves from bottom to top,
So as to provide energy again for vapor movement, guarantees speed when vapor movement, obtain the impurity being mingled with preferably
Separation.
Inside the water inlet tank 1 be equipped with helical vent road 11, the helical vent road 11 by 1 inner wall of water inlet tank and be set into
The formation of spiral guide blade 12 inside water pot 1.The outer edge of spiral guide blade 12 is fixedly connected with the inner wall of water inlet tank 1.
In the present embodiment, the concrete shape of spiral guide blade 12 is as shown in figure 3, and spiral guide blade 12 is fixed on into water tank 1
It on inner wall, be driven spiral guide blade 12 will not in the movement of vapor, to form stable helical vent road
11.Spiral guide blade 12 and water inlet 1 inner wall of tank can be fixed by welding, can also be connected by other fixed forms
Connect, vapor is moved along helical vent road 11, form centrifugal force, and the big impurity of the ratio water-vapour density that is mingled in vapor by
The centrifugal force arrived is also big, so that the edge for being thrown to helical vent road 11 intakes on the inner wall of tank, vapor is then located at spiral
The middle part of air passage 11 continues up, and impurity is fallen due to gravity along inner wall.
First water pipe 4 is connect with the top in helical vent road 11, and first water pipe 4 is equipped with leaving air control valve 13.
Vapor is condensed through the outflow of the first water pipe 4, the folding of the vapor of the control outflow of leaving air control valve 13.The water inlet tank 1
Top be equipped with water inlet 14, the water inlet 14 be equipped with water inlet control valve 15.What water inlet control valve 15 made to enter into water tank 1
Sewage quantity is controllable, to more preferably control the amount of sewage per treatment.The bottom of the water inlet tank 1 is equipped with sewage draining exit 16, the row
Dirty mouth 16 is equipped with blowdown control valve 17.After water evaporation, remaining dirt is flowed out by sewage draining exit, and blowdown control valve 17 controls
The folding of sewage draining exit.The water inlet tank 1 is equipped with pressure modulating opening 18, and the pressure modulating opening 18 is equipped with Regulation Control valve 19.With heating
It carries out, vapor is flowed out from the first water pipe 4, and water inlet 1 internal pressure of tank reduces, after having carried out single treatment, inside tank 1 of intaking
Still in low-pressure state, when being again injected into sewage in water pot, low-pressure state can be such that internal water boiling point reduces, and sewage may
Occur the generation boiled so as to cause safety accident in injection process, and the pressure inside the adjustable water inlet tank 1 of pressure modulating opening 18
Power, and Regulation Control valve 19 controls the folding of pressure modulating opening, after a sewage treatment, opens Regulation Control valve, makes into water tank
Interior pressure is in normal pressure state and adds water again.
As shown in Figure 1, being equipped with electrically heated rod 20 and refrigerator pipes 21 inside the condensate draining 2, the refrigerator pipes 21 are connected
There is the second air compressor 22.Electrically heated rod 20 and refrigerator pipes 21 be for keeping constant the coolant-temperature gage in condensate draining 2,
Water temperature in condensate draining 2 is maintained at 30 DEG C hereinafter, the pressure in the water inlet tank 1 that vacuum jet device 8 controls can make into water tank 1
Water boiling point be reduced to 37 DEG C, not will cause personnel's scald, in the present embodiment, the water temperature in condensate draining 2 is 13 DEG C -18 DEG C,
Water boiling point in corresponding water inlet tank is reduced to 32 DEG C, is purified, be concentrated, separated to water under this boiling point, makes to consume energy few
It ensure that safety simultaneously.When coolant-temperature gage in condensate draining 2 is lower than 13 DEG C, electrically heated rod 20 heats it, Zhi Daowen
Degree is more than 13 DEG C, and when water temperature is higher than 18 DEG C, the second air compressor 22 makes the refrigeration of refrigerator pipes 21, and specific refrigeration modes are referring to the
One air compressor, does not repeat, until water temperature is lower than 18 DEG C.Using 8 vacuumizing method of vacuum jet device, compared to traditional vacuum
Pumping vacuum ensure that the entire circulation of totally enclosed heating in vacuum ultralow temperature evaporation, condensation, and the operating process of whole equipment is not
Secondary pollution is generated, MVR steam heating evaporation, the steam air compressor machine heating evaporation of the prior art can generate auxiliary air dirt
Dye.
As described in Figure 1, the condensate draining 2 is equipped with water level restricted entry, and the water level restricted entry is connected by third water pipe 23
It is connected to header tank 24.Condensate draining 2 keeps the water inside condensate draining 2 more next by the injection of the condensed water continually flowed out
More, when reaching water level restricted entry, extra water, which will be overflowed, flows into header tank 24 through third water pipe 23, and condensate draining is remaining
Water is used for the circulation of vacuum jet device 8, and the setting of water level restricted entry makes the water inside condensate draining 2 be constantly in stable shape
State.
Water inlet control valve 15 is opened, sewage enters in water inlet tank 1 from water inlet 14, water inlet control when reaching the water of setting
Valve 15 is closed, and leaving air control valve 13 is opened, and 10 work calories of the first air compressor enter heating tube and heat to sewage, together
When vacuum jet device 8 and high pressured water circuling pump 9 also start to work, the vapor generated in water inlet tank 1 passes through helical vent road 11
The big impurity of density ratio vapor is isolated by centrifugal force, water inlet tank 1 is pumped into negative pressure state, water by vacuum jet device 8 simultaneously
Boiling point accordingly reduce, with the progress of heating, evaporation is accelerated in sewage boiling, and the condensed water being flowed into condensate draining 2 passes through
High pressured water circuling pump 9 enters back into vacuum jet device 8 and guarantees the low-pressure state intake in tank 1, the electrically heated rod 20 in condensate draining 2
Guarantee that the water in condensate draining 2 is maintained at stable temperature with refrigerator pipes 21, thus guarantee that the pressure intake in tank 1 is stablized, with
Condensed water flow into condensate draining 2 in, the water in condensate draining 2 reaches water level restricted entry, and water is spilt into from third water pipe 23
In header tank 24, after the water process intake in tank 1, the first air compressor 10 and vacuum jet device 8 stop working, and close
Leaving air control valve 13 is closed, opening Regulation Control valve 19 makes to return to normal pressure state into the pressure in water tank 1, opens blowdown control valve
17, dirt is flowed out from sewage draining exit, and blowdown control valve 17 is closed after cleaning out, and is again turned on water inlet control valve 15, and sewage enters
It starts to process, circuits sequentially in water inlet tank 1.
Claims (10)
1. a kind of water treatment facilities, it is characterised in that: including water inlet tank and condensate draining, between water inlet tank and the condensate draining
It equipped with condenser, is connected between water inlet tank and the condenser by the first water pipe, is led between the condenser and condensate draining
The connection of the second water pipe is crossed, the water inlet pot bottom is equipped with heating tube, and second water pipe is equipped with vacuum jet device, and the vacuum is penetrated
Stream device is connected with high pressured water circuling pump, the lower part of the water inlet connection condensate draining of the high pressured water circuling pump.
2. a kind of water treatment facilities according to claim 1, it is characterised in that: the import of the heating tube is connected with first
Air compressor, the refrigerant outlet side of first air compressor connect the heating tube, refrigerant suction side and condensation
The refrigerant outlet of device connects, and the outlet of the heating tube and the refrigerant inlet of condenser connect.
3. a kind of water treatment facilities according to claim 2, it is characterised in that: the heating tube include the first heating tube and
Second heating tube, first heating tube and the second heating tube are arranged in series, and first heating tube is disk in the horizontal direction
Shape, second heating tube are helical form along the vertical direction.
4. a kind of water treatment facilities according to claim 3, it is characterised in that: be equipped with helical vent inside the water inlet tank
Road, the helical vent road are formed by water inlet top tank structure and the spiral guide blade inside water inlet tank.
5. a kind of water treatment facilities according to claim 4, it is characterised in that: first water pipe and helical vent road
Top connection, first water pipe are equipped with leaving air control valve.
6. a kind of water treatment facilities according to claim 5, it is characterised in that: the top of the water inlet tank is equipped with water inlet
Mouthful, the water inlet is equipped with water inlet control valve, and the bottom of the water inlet tank is equipped with sewage draining exit, and the sewage draining exit is controlled equipped with blowdown
Valve.
7. a kind of water treatment facilities according to claim 6, it is characterised in that: the water inlet tank is equipped with pressure modulating opening, described
Pressure modulating opening is equipped with Regulation Control valve.
8. a kind of water treatment facilities according to claim 7, it is characterised in that: be equipped with electric heating inside the condensate draining
Stick and refrigerator pipes, the refrigerator pipes are connected with the second air compressor.
9. according to claim 1 to a kind of 8 one of them described water treatment facilities, it is characterised in that: the condensate draining is set
There is water level restricted entry, the water level restricted entry is connected with header tank by third water pipe.
10. a kind of processing method of water treatment facilities according to claim 9, characterized by the following steps:
1) water inlet control valve is opened, sewage is entered from the inlet into water tank, and water inlet control valve is closed when reaching the water of setting；
2) leaving air control valve is opened, and sewage is heated in the work of the first air compressor, while vacuum jet device and high pressure are followed
Ring water pump is also started to work, and tank of intaking is pumped into negative pressure state by vacuum jet device；
3) water evaporation intake in tank is vapor, and vapor is condensed into liquid water through condenser and flows into condensate draining；
4) sewage treatment intake in tank finishes, and opening Regulation Control valve makes to return to normal pressure state into the pressure in water tank；
5) Regulation Control valve is closed, water inlet control valve is opened, sewage is again flowed into being handled in water tank, is repeated in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050494.3A CN110526316A (en) | 2019-10-31 | 2019-10-31 | A kind of water treatment facilities and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050494.3A CN110526316A (en) | 2019-10-31 | 2019-10-31 | A kind of water treatment facilities and its processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110526316A true CN110526316A (en) | 2019-12-03 |
Family
ID=68672080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911050494.3A Pending CN110526316A (en) | 2019-10-31 | 2019-10-31 | A kind of water treatment facilities and its processing method |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281649A (en) * | 2020-10-30 | 2021-01-29 | 温州安荷桥科技有限公司 | Bridge drainage spiral filter equipment |
| TWI740612B (en) * | 2020-08-18 | 2021-09-21 | 莊奕真 | Feedlot wastewater processing method and device thereof |
| CN114933380A (en) * | 2022-06-20 | 2022-08-23 | 安徽梦清环保科技有限公司 | Sewage treatment device and sewage treatment method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558436A (en) * | 1968-07-30 | 1971-01-26 | Auscoteng Pty Ltd | Distilation apparatus for desalinisation of saline water to recover fresh water as condensate |
| CN101444673A (en) * | 2008-11-14 | 2009-06-03 | 林晓山 | Low temperature high-efficient energy-saving evaporation process |
| CN105920924A (en) * | 2016-06-24 | 2016-09-07 | 四川科华石油化工设备工程有限公司 | Vertical type cyclone gas-phase sand remover |
| CN108203129A (en) * | 2016-12-16 | 2018-06-26 | 北京航空航天大学 | Heat pump driven injection type negative pressure desalination plant and method |
-
2019
- 2019-10-31 CN CN201911050494.3A patent/CN110526316A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558436A (en) * | 1968-07-30 | 1971-01-26 | Auscoteng Pty Ltd | Distilation apparatus for desalinisation of saline water to recover fresh water as condensate |
| CN101444673A (en) * | 2008-11-14 | 2009-06-03 | 林晓山 | Low temperature high-efficient energy-saving evaporation process |
| CN105920924A (en) * | 2016-06-24 | 2016-09-07 | 四川科华石油化工设备工程有限公司 | Vertical type cyclone gas-phase sand remover |
| CN108203129A (en) * | 2016-12-16 | 2018-06-26 | 北京航空航天大学 | Heat pump driven injection type negative pressure desalination plant and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI740612B (en) * | 2020-08-18 | 2021-09-21 | 莊奕真 | Feedlot wastewater processing method and device thereof |
| CN112281649A (en) * | 2020-10-30 | 2021-01-29 | 温州安荷桥科技有限公司 | Bridge drainage spiral filter equipment |
| CN114933380A (en) * | 2022-06-20 | 2022-08-23 | 安徽梦清环保科技有限公司 | Sewage treatment device and sewage treatment method thereof |
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Application publication date: 20191203 |