CN1262492C - Method and apparatus for treating and reusing domestic wastewater - Google Patents
Method and apparatus for treating and reusing domestic wastewater Download PDFInfo
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- CN1262492C CN1262492C CNB031468276A CN03146827A CN1262492C CN 1262492 C CN1262492 C CN 1262492C CN B031468276 A CNB031468276 A CN B031468276A CN 03146827 A CN03146827 A CN 03146827A CN 1262492 C CN1262492 C CN 1262492C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The present invention relates to a method and a device for treating and reusing domestic wastewater. The domestic wastewater is from the storeys above the second floor; a wastewater treating device (2) is arranged on the ground, and the domestic wastewater enters the wastewater treating device (2) from the bottom by making use of pressure which is formed by drop height. Firstly, waste slag is precipitated in a second-stage precipitation zone (21) of the wastewater treating device (2); particulated materials which are further filtered by a filter net (22) by making use of pressure formed by the drop height enter a biologic filtering core (23); bacteria in the biologic filtering core (23) eliminate organic substances in the domestic wastewater, and the domestic wastewater which is treated by the biologic filtering core (23) finally enters a water storage zone (24) for standby. The water which is used for irrigating green plants is guided from the water storage zone (24), and the treated water irrigates the green plants or becomes fire fighting water when required by making use of the pressure of the drop height which is formed by an interface of a water outlet pipe (26) and the ground.
Description
Technical field the present invention relates to method of wastewater treatment, and particularly sanitary wastewater is handled method and the device thereof that utilizes again.
The tap water pouring is generally adopted in the pouring of the present urban green space of background technology plant, and this mode is waste water resource not only, and because tap water is generally taken from underground tank, needs water pump that it is drawn up and water, so also will waste a large amount of electric resources.In addition, the water for fire-fighting purpose in the city adopts tap water too, so aggravated the present situation of present water resources wretched insufficiency, is a big hidden danger to water for fire-fighting purpose; And the not treated direct discharging of municipal wastewater can cause environmental pollution, is the topmost source that urban environment water pollutes.
Summary of the invention the objective of the invention is to make full use of the waste water treatment that carries out of high building sanitary wastewater drop, be directly used in pouring and the water for fire-fighting purpose of urban green space plant then, save water resources and electric resources, for the city implants is irrigated and water for fire-fighting purpose provides cheap water source, simultaneously also can be for cleaning road surface, fountain, carwash, toilet toilet stool washing and environmental protection water.
Embodiment of the present invention are as follows: a kind of method that processing utilizes again at sanitary wastewater may further comprise the steps:
A. will import wastewater treatment equipment by the sanitary wastewater that the building sewerage is drawn;
B. by wastewater treatment equipment the sanitary wastewater of introducing is handled;
C. draw by wastewater treatment equipment that after treatment water waters the green plants in the living quarters or fire-fighting becomes water for fire-fighting purpose when needing;
It is characterized in that: the sanitary wastewater in the described steps A is to draw the floor more than second floor certainly, and sanitary wastewater utilizes the formed pressure of drop to carry out the one-level precipitation and get rid of the smeary processing in the importing pretreatment unit earlier, imports in the wastewater treatment equipment then; Wastewater treatment equipment among the described step B is arranged on the ground, sanitary wastewater is entered in the wastewater treatment equipment by the bottom from pretreatment unit, at first in the two-stage precipitation district of wastewater treatment equipment, precipitate waste residue, and utilize the formed pressure of drop upwards by filtering net further filtering particle shape material and enter in the biological filter core that is arranged at this filtering net top, eat up organism in the sanitary wastewater by the bacterium in this biology filter core, the sanitary wastewater after handling through this biology filter core continues upwards to enter at last in the storage area standby; The water that is used for watering green plants among the described step C draws from the storage area that is positioned at wastewater treatment equipment top, the interface of rising pipe is driveed on the sidewall of storage area, and water conservancy is after treatment watered interface with water for fire-fighting purpose with the pressure of rising pipe upper interface and drop that ground forms to green plants.
A kind of device of realizing aforesaid method, comprise building sewerage, wastewater treatment equipment and the water inlet pipe that is communicated with both, add pretreatment unit before wastewater treatment equipment, the interface between described water inlet pipe and the sewerage is higher than two mouths of a river downstairs, and sanitary wastewater utilizes the formed pressure f of drop
1Import pretreatment unit earlier, the upper and lower part of this pretreatment unit respectively is provided with dirty pipe of oil extraction and blow-off pipe, and sanitary wastewater carries out the one-level precipitation and gets rid of smeary and handle in this pretreatment unit, import in the wastewater treatment equipment by pipe connecting then; Described wastewater treatment equipment is fixedly set on the ground by support, and described wastewater treatment equipment is a cylindrical body, and this wastewater treatment equipment is disposed with two green settling regions, filtering net, biological filter core and storage area from lower to upper; Sanitary wastewater is entered by water inlet pipe and carries out the one-level precipitation in the pretreatment unit and get rid of the smeary processing.Import in the wastewater treatment equipment by pipe connecting then; At first in the two-stage precipitation district that is arranged at the wastewater treatment equipment bottom, precipitate waste residue, and utilize the formed pressure of drop upwards by filtering net further filtering particle shape material and enter in the biological filter core that is arranged at this filtering net top, eat up organism in the sanitary wastewater by the bacterium in this biology filter core, the sanitary wastewater after handling through this biology filter core continues upwards to enter at last in the storage area standby; This device also is provided with rising pipe, and this rising pipe is communicated with the storage area that is positioned at wastewater treatment equipment top, and water conservancy is after treatment watered and the water for fire-fighting purpose interface green plants with the pressure of rising pipe interface and drop that ground forms.
Can make full use of the pressure of water drop under the high building after the invention process, sanitary wastewater can be handled in wastewater treatment equipment in order, the pressure that water after treatment also can drop waters and supplies water for fire-fighting purpose.
Description of drawings
Fig. 1 is that the master of device of the present invention looks cross-sectional schematic.
Fig. 2 is that the master of installing surplus valve formula device additional of the present invention looks cross-sectional schematic.
Embodiment further specifies specific embodiments of the invention below in conjunction with accompanying drawing.
By among Fig. 1 as can be known, a kind of method of utilizing sanitary wastewater pouring green plants may further comprise the steps:
A. will import wastewater treatment equipment 2 by the sanitary wastewater that building sewerage 1 is drawn;
B. handle by the sanitary wastewater of 2 pairs of introducings of wastewater treatment equipment;
C. the water of being drawn after treatment by wastewater treatment equipment 2 waters and fire storage the green plants in the living quarters;
Sanitary wastewater in the described steps A is the floor that draws from more than second floor, and sanitary wastewater utilizes the formed pressure f of drop
1Import earlier and carry out the one-level precipitation in the pretreatment unit 9 and get rid of the smeary processing; Import then in the wastewater treatment equipment 2; Wastewater treatment equipment among the described step B 2 is arranged on the ground, sanitary wastewater is entered in the wastewater treatment equipment 2 by the bottom from pretreatment unit 9, at first in the two-stage precipitation district 21 of wastewater treatment equipment 2, precipitate waste residue, and utilize the formed pressure of drop upwards by filtering net 22 further filtering particle shape materials and enter in the biological filter core 23 that is arranged at these filtering net 22 tops, eat up organism in the sanitary wastewater by the bacterium in this biology filter core 23, filtering net 22 also can slow down waste water is entered biological filter core 23 by settling region 21 flow velocity simultaneously, guarantee that waste water can stop the regular hour at biological filter core 23, make the bacterium can the more than enough organism of eating up in the sanitary wastewater, and guarantee that the bacterium in the biological filter core 23 do not washed away by waste water.Enter in the storage area 24 standby at last through the sanitary wastewater after these biology filter core 23 processing; The water that is used for watering green plants among the described step C draws from the storage area 24 that is positioned at wastewater treatment equipment 2 tops, and the interface of rising pipe 26 is driveed on the sidewall of storage area 24, and water conservancy after treatment is with the pressure f of rising pipe 26 upper interface and drop that ground forms
2Green plants is watered and water for fire-fighting purpose.Not working power equipment in this programme, so, a large amount of electric resources can be saved.Because plant has the certain absorption ability to the organism in the waste water, and can adapt to the water of little acid, little basicity, so this device is saved a part of handling procedure, makes treatment unit simpler, production cost is lower.
By among Fig. 1 as can be known, present method can also add the water level controlled step, at first with the water inlet pipe 3 other sewerages 1 that are connected to, below water inlet pipe 3 on the sewerage 1, magnetic valve 43 is set, water level switch 41 and following water level switch 42 are being set respectively on the sidewall of storage area 24, when the water level in the storage area 24 rises by the position of supreme water level switch 41, the controller 44 of this switch 41 in water level control system 4 sends electrical signal, controller 44 control magnetic valves 43 cut out sewerage 1, and sanitary wastewater can import pretreatment unit 9 and wastewater treatment equipment 2; When the water level in the storage area 24 retreats to down the position of water level switch 42, this switch 42 sends electrical signal, controller 44 control magnetic valves 43 are opened sewerage 1, sanitary wastewater does not import in the pretreatment unit 9 and directly drains, present method also need be provided with a check valve 6 on water inlet pipe 3, prevent that the aqueous reflux of wastewater treatment equipment 2 from going in the sewerage 1.
By among Fig. 2 as can be known, present method can also add the overflow step, in the two-stage precipitation district 21 of wastewater treatment equipment 2 upflow tube 7 is set, and on this upflow tube 7 surplus valve 28 is set, the oil pressure relief f of this surplus valve 28
3Adjustment is at f
1～f
2Between, when not needing water, the pressure in the wastewater treatment equipment 2 is greater than f
3The time, sanitary wastewater is discharged by upflow tube 7 overflows, and this part waste water directly enters down water without the processing of wastewater treatment equipment 2; When the needs water, open rising pipe 26, the pressure in the wastewater treatment equipment 2 is less than f at this moment
3The time, surplus valve 7 cuts out, and waste water must could use then through the processing of wastewater treatment equipment 2.
By among Fig. 1 as can be known, a kind of device of realizing aforesaid method, comprise building sewerage 1, wastewater treatment equipment 2 and the water inlet pipe 3 that is communicated with both, before wastewater treatment equipment, add pretreatment unit 9, interface between described water inlet pipe 3 and the sewerage 1 is higher than two mouths of a river downstairs, and sanitary wastewater utilizes the formed pressure f of drop
1Import pretreatment unit 9 earlier, the upper and lower part of this pretreatment unit 9 respectively is provided with dirty pipe 91 of oil extraction and blow-off pipe 92, and sanitary wastewater carries out the one-level precipitation and gets rid of smeary and handle in this pretreatment unit 9, import in the wastewater treatment equipment 2 by pipe connecting 31 then; The greasy dirt that the dirty pipe 31 of oil extraction will float on the water surface is discharged, and the waste residue that blow-off pipe 92 can precipitate one-level is discharged.Described wastewater treatment equipment 2 is fixedly set on the ground by support 5, and described wastewater treatment equipment 2 is a cylindrical body, and this wastewater treatment equipment 2 is disposed with two-stage precipitation district 21, filtering net 22, biological filter core 23 and storage area 24 from lower to upper; Sanitary wastewater is entered in the wastewater treatment equipment 2 by pipe connecting 31, at first in the two-stage precipitation district 21 that is arranged at wastewater treatment equipment 2 bottoms, further precipitate waste residue, and utilize the formed pressure of drop upwards by filtering net 22 further filtering particle shape materials and enter in the biological filter core 23 that is arranged at these filtering net 22 tops, eat up organism in the sanitary wastewater by the bacterium in this biology filter core 23, the sanitary wastewater after handling through this biology filter core 23 continues upwards to enter at last in the storage area 24 standby; This device also is provided with rising pipe 26, and this rising pipe 26 is communicated with the storage area 24 that is positioned at wastewater treatment equipment 2 tops, and water conservancy after treatment is with the pressure f of rising pipe 26 interfaces and drop that ground forms
2Green plants is watered and water for fire-fighting purpose.
By among Fig. 1 as can be known, this device also is provided with water level control system 4, this system comprises the magnetic valve 43 that is arranged on water inlet pipe 3 belows on the sewerage 1, water level switch 41 and following water level switch 42 are being set respectively on the sidewall of storage area 24, also comprise the controller 44 that is arranged at magnetic valve 43 annexes and be arranged at check valve 6 on the water inlet pipe 3, be electrically connected between described water level switch 41 and following water level switch 42 and controller 44, controller 44 and the magnetic valve 43; The described water inlet pipe 3 other sewerages 1 that are connected to, described installation site of going up water level switch 41 is higher than the interface position between rising pipe 26 and the wastewater treatment equipment 2; When the water level in the storage area 24 rose by the position of supreme water level switch 41, this switch 41 sent electrical signal to controller 44, and controller 44 control magnetic valves 43 cut out sewerage 1, and sanitary wastewater can import pretreatment unit 9 and wastewater treatment equipment 2; When the water level in the storage area 24 retreated to down the position of water level switch 42, this switch 42 sent electrical signal, and controller 44 control magnetic valves 43 are opened sewerage 1, and sanitary wastewater does not import in the pretreatment unit 9 and directly drains.
As shown in Figure 2, the two-stage precipitation district 21 that this device also is included in wastewater treatment equipment 2 is provided with upflow tube 7, on this upflow tube 7 surplus valve 28 is set, the oil pressure relief f of this surplus valve 28
3Adjustment is at f
1～f
2Between, the pressure in wastewater treatment equipment 2 is greater than f
3The time, sanitary wastewater is discharged by upflow tube 7 overflows, and the pressure in wastewater treatment equipment 2 is less than f
3The time, wastewater treatment equipment 2 works better.
As shown in Figure 1, also have upflow tube 8 on the sidewall of described storage area 24, the position of this upflow tube 8 is higher than the installation site of water level switch 41.When water level control system 4 was malfunctioning, unnecessary water can enter down water by upflow tube 8, improves the security of this device.
As shown in Figure 1, for the ease of the dirt of collecting precipitation, 21 bottoms, described two-stage precipitation district are provided with settling bath 211, and these settling bath 211 oral areas are provided with iron net 212, and the bottom of settling bath 211 is provided with blow-off pipe 213, and this blow-off pipe 213 is provided with wash water valve 214.Dirt can be opened wash water valve 214 more for a long time in settling bath 211, and dirt is taken away, and iron net 212 can prevent that sedimentary dirt from rising.
By among Fig. 1 as can be known, described wastewater treatment equipment 2 cantilevers are provided with at least three blocks of plates 29 that extend to opposite side wall from a side sidewall, biological filter core 23 is fixed between two plates, and the slit that upper and lower two boards and sidewall form is positioned at the same side, and the slit that intermediate plate and sidewall form is positioned at opposite side.The purpose of this design is, makes waste water longer in the distance of biological filter core 23 processes, is convenient to bacterium and more eats up organism in the waste water, can slow down the flow velocity of waste water simultaneously.
As shown in Figure 1, be equipped with stopping valve on described water inlet pipe 3 and the rising pipe 26, be convenient to control.
Claims (10)
1. handle the method for utilizing again at sanitary wastewater for one kind, may further comprise the steps:
A. will import wastewater treatment equipment (2) by the sanitary wastewater that draw building sewerage (1);
B. by wastewater treatment equipment (2) sanitary wastewater of introducing is handled;
C. the water of being drawn after treatment by wastewater treatment equipment (2) waters or is used as water for fire-fighting purpose to the green plants in the living quarters;
It is characterized in that:
Sanitary wastewater in the described steps A is the floor that draws from more than second floor, and sanitary wastewater utilizes the formed pressure f of drop
1Import earlier and carry out the one-level precipitation in the pretreatment unit (9) and get rid of the smeary processing, import then in the wastewater treatment equipment (2);
Wastewater treatment equipment among the described step B (2) is arranged on the ground, sanitary wastewater is entered in the wastewater treatment equipment (2) by the bottom from pretreatment unit (9), at first in the two-stage precipitation district (21) of wastewater treatment equipment (2), precipitate waste residue, and utilize the formed pressure of drop upwards by the further filtering particle shape material of filtering net (22) and enter in the biological filter core (23), eat up organism in the sanitary wastewater by the bacterium in this biology filter core (23), the sanitary wastewater after handling through this biology filter core (23) enters in the storage area (24) standby at last;
The water that is used for watering green plants among the described step C draws from the storage area (24) that is positioned at wastewater treatment equipment (2) top, and water conservancy after treatment is with the pressure f of rising pipe (26) interface and drop that ground forms
2Water for fire-fighting purpose is watered or be used as to green plants.
2. method according to claim 1, it is characterized in that: present method also comprises method for controlling water level, at first with the other sewerage (1) that is connected to of water inlet pipe (3), the below of going up water inlet pipe (3) at sewerage (1) is provided with magnetic valve (43), and (24) are provided with water level switch (41) and following water level switch (42) respectively in the storage area; When the water level in storage area (24) rises by the position of supreme water level switch (41), the controller (44) of this switch (41) in water level control system (4) sends electrical signal, controller (44) control magnetic valve (43) cuts out sewerage (1), and sanitary wastewater imports wastewater treatment equipment (2); When the water level in storage area (24) retreats to down the position of water level switch (42), this switch (42) sends electrical signal, controller (44) control magnetic valve (43) is opened sewerage (1), sanitary wastewater does not import in the wastewater treatment equipment (2) and directly drains, present method also need be provided with a check valve (6) on water inlet pipe (3), prevent that the aqueous reflux of wastewater treatment equipment (2) from going in the sewerage (1).
3. method according to claim 1 is characterized in that: present method also adds surplus valve control water level, at pretreatment unit (9) upflow tube (7) is set, and surplus valve (28) is set, the oil pressure relief f of this surplus valve (28) on this upflow tube (7)
3Adjustment is at f
1～f
2Between, the pressure in wastewater treatment equipment (2) is greater than f
3The time, sanitary wastewater is discharged by upflow tube (7) overflow, and the pressure in wastewater treatment equipment (2) is less than f
3The time, wastewater treatment equipment (2) works better.
4. a device of realizing the described method of claim 1 comprises building sewerage (1), wastewater treatment equipment (2) and the water inlet pipe (3) that is communicated with both;
It is characterized in that:
At the preceding pretreatment unit (9) that adds of wastewater treatment equipment (2), the interface between described water inlet pipe (3) and the sewerage (1) is higher than two mouths of a river downstairs, and sanitary wastewater utilizes the formed pressure f of drop
1Import pretreatment unit (9) earlier, the upper and lower part of this pretreatment unit (9) respectively is provided with the dirty pipe of oil extraction (91) and blow-off pipe (92), sanitary wastewater carries out the one-level precipitation and gets rid of smeary and handle in this pretreatment unit (9), import in the wastewater treatment equipment (2) by pipe connecting (31) then;
Described wastewater treatment equipment (2) is fixedly set on the ground by support (5), described wastewater treatment equipment (2) is a cylindrical body, and this wastewater treatment equipment (2) is disposed with two-stage precipitation district (21), filtering net (22), biological filter core (23) and storage area (24) from lower to upper;
Sanitary wastewater is entered by water inlet pipe (3) and carries out the one-level precipitation in the pretreatment unit (9) and get rid of the smeary processing, imports in the wastewater treatment equipment (2) by pipe connecting (31) then; At first in the two-stage precipitation district (21) that is arranged at wastewater treatment equipment (2) bottom, precipitate waste residue, and utilize the formed pressure of drop upwards by filtering net (22) further filtering particle shape material and entering be arranged in the biological filter core (23) above this filtering net (22), eat up organism in the sanitary wastewater by the bacterium in this biology filter core (23), the sanitary wastewater after handling through this biology filter core (23) continues upwards to enter at last in the storage area (24) standby;
This device also is provided with rising pipe (26), and this rising pipe (26) is communicated with the storage area (24) be positioned at wastewater treatment equipment (2) top, and water conservancy after treatment is with the pressure f of rising pipe (26) interface and drop that ground forms
2Water for fire-fighting purpose is watered or be used as to green plants.
5. device according to claim 4, it is characterized in that: this device also is provided with water level control system (4), this system comprises the magnetic valve (43) that is arranged on the last water inlet pipe (3) of sewerage (1) below, water level switch (41) and following water level switch (42) are set respectively on the sidewall of storage area (24), also comprise and be arranged near the controller (44) the magnetic valve (43) and be arranged at check valve (6) on the water inlet pipe (3), described water level switch (41) and following water level switch (42) and controller (44), be electrically connected between controller (44) and the magnetic valve (43); The other sewerage (1) that is connected to of described water inlet pipe (3), described installation site of going up water level switch (41) is higher than the interface position between rising pipe (26) and the wastewater treatment equipment (2);
When the water level in storage area (24) rises by the position of supreme water level switch (41), this switch (41) sends electrical signal to controller (44), controller (44) control magnetic valve (43) cuts out sewerage (1), and sanitary wastewater imports pretreatment unit (9) and wastewater treatment equipment (2); When the water level in storage area (24) retreated to down the position of water level switch (42), this switch (42) sent electrical signal, and controller (44) control magnetic valve (43) is opened sewerage (1), and sanitary wastewater does not import in the pretreatment unit (9) and directly drains.
6. device according to claim 4 is characterized in that: the two-stage precipitation district (21) that this device also is included in wastewater treatment equipment (2) is provided with upflow tube (7), and surplus valve (28) is set on this upflow tube (7), the oil pressure relief f of this surplus valve (28)
3Adjustment is at f
1～f
2Between, the pressure in wastewater treatment equipment (2) is greater than f
3The time, sanitary wastewater is discharged by upflow tube (7) overflow, and the pressure in wastewater treatment equipment (2) is less than f
3The time, wastewater treatment equipment (2) works better.
7. device according to claim 5 is characterized in that: also have upflow tube (8) on the sidewall of described storage area (24), the position of this upflow tube (8) is higher than the installation site of water level switch (41).
8. device according to claim 4, it is characterized in that: bottom, described two-stage precipitation district (21) is provided with settling bath (211), this settling bath (211) oral area is provided with iron net (212), the bottom of settling bath (211) is provided with blow-off pipe (213), and this blow-off pipe (213) is provided with wash water valve (214).
9. device according to claim 4, it is characterized in that: described wastewater treatment equipment (2) cantilever is provided with at least three blocks of plates (29) that extend to opposite side wall from a side sidewall, biological filter core (23) is fixed between two plates, the slit that upper and lower two boards and sidewall form is positioned at the same side, and the slit that intermediate plate and sidewall form is positioned at opposite side.
10. device according to claim 4 is characterized in that: be equipped with stopping valve on described water inlet pipe (3) and the rising pipe (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031468276A CN1262492C (en) | 2003-09-08 | 2003-09-08 | Method and apparatus for treating and reusing domestic wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031468276A CN1262492C (en) | 2003-09-08 | 2003-09-08 | Method and apparatus for treating and reusing domestic wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1594144A CN1594144A (en) | 2005-03-16 |
| CN1262492C true CN1262492C (en) | 2006-07-05 |
Family
ID=34659684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031468276A Expired - Fee Related CN1262492C (en) | 2003-09-08 | 2003-09-08 | Method and apparatus for treating and reusing domestic wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1262492C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993156B (en) * | 2009-08-16 | 2013-09-11 | 杜也兵 | Backwater security method of recycle of thick water discharged from pure water machine |
| CN102870658A (en) * | 2011-07-14 | 2013-01-16 | 中国人民解放军总装备部航天医学工程研究所 | Method for growing plants by using space waste and wastewater |
| CN103241852B (en) * | 2013-05-21 | 2015-05-27 | 夏冰 | Sewage purification and cyclic utilization treatment device |
| CN104150677B (en) * | 2014-01-10 | 2016-10-12 | 广东金明环保科技有限公司 | It is used in livestock-raising water and processes the pedestal on integrated equipment |
| CN105692944B (en) * | 2016-03-21 | 2018-05-04 | 青岛智承机电科技有限公司 | Non-point pollution source abatement device |
| CN109133399A (en) * | 2018-09-28 | 2019-01-04 | 安溪坤祁德机械科技有限公司 | It shunts centrifugal rejection filter and limit adjusts and flows the sewage combination filter bag that diafiltration matches |
-
2003
- 2003-09-08 CN CNB031468276A patent/CN1262492C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1594144A (en) | 2005-03-16 |
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