CN102531185A - Variable flow constructed wetland provided with winter temperature maintaining and raising device - Google Patents

Variable flow constructed wetland provided with winter temperature maintaining and raising device Download PDF

Info

Publication number
CN102531185A
CN102531185A CN2012100044212A CN201210004421A CN102531185A CN 102531185 A CN102531185 A CN 102531185A CN 2012100044212 A CN2012100044212 A CN 2012100044212A CN 201210004421 A CN201210004421 A CN 201210004421A CN 102531185 A CN102531185 A CN 102531185A
Authority
CN
China
Prior art keywords
water
pipe
artificial swamp
filler
variable flow
Prior art date
Application number
CN2012100044212A
Other languages
Chinese (zh)
Other versions
CN102531185B (en
Inventor
席北斗
张列宇
王锦彪
夏训峰
霍守亮
何连生
Original Assignee
中国环境科学研究院
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中国环境科学研究院 filed Critical 中国环境科学研究院
Priority to CN2012100044212A priority Critical patent/CN102531185B/en
Publication of CN102531185A publication Critical patent/CN102531185A/en
Application granted granted Critical
Publication of CN102531185B publication Critical patent/CN102531185B/en

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage
    • Y02W10/18Constructed wetlands

Abstract

The invention discloses a winter temperature maintaining and raising device for a constructed wetland. The main structure of the device is that: three sections of fillers are vertically and parallelly filled in the constructed wetland, the tops of the three sections of fillers are provided with a water distribution pipe, the bottoms of the three sections of fillers are provided with a water receiving pipe, and a water outlet of the water receiving pipe and the tops of the fillers are at the same height; the upper part of one end of the three sections of fillers is connected with a water inlet pipe, the lower part of the other end of the three sections of fillers is connected with a water outlet pipe, and a water outlet of the water outlet pipe and the tops of the fillers are at the same height; the water distribution pipe and the water inlet pipe are connected to a high-position water tank respectively; when water flows into the water distribution pipe, the water is discharged from the water outlet of the water receiving pipe, and the water inlet pipe and the water outlet pipe are closed; and when the water flows into the water inlet pipe, the water is discharged from the water outlet of the water outlet pipe, and the water distribution pipe and the water receiving pipe are closed. A guardrail at the periphery of the constructed wetland is double walls, and organic matter for fermenting to produce heat is filled inside the double walls. The temperature of the wetland is maintained and raised by the heat produced by microbial metabolism in a double wall structure; and the disadvantages that the content of dissolved oxygen of influent of a horizontal flow wetland is low in summer and a vertical flow wetland is high in heat loss in winter are overcome.

Description

A kind of variable flow artificial swamp that is provided with the Winter protection heating device

Technical field

The present invention relates to a kind of attemperator, be specifically related to a kind of variable flow artificial swamp that is provided with the Winter protection heating device.

Background technology

Artificial swamp is as a kind of ecological type sewage disposal technology of economical and efficient, and it is used more and more widely.Through nearly 50 years development, seat surplus the U.S. has 10000 at present, an artificial swamp was used for disposing of sewage surplus Denmark had 800.But artificial swamp receives factor affecting such as season, temperature bigger, and the season that the clearance of pollutent is higher than temperature during winter low temperature is low, and particularly pollutent such as N, P has influenced its promoting the use of of low temp area in the winter time.In recent years, Chinese scholars has been carried out the artificial swamp research of low temp area insulation in the winter time.For example mulch film insulation, plant covering and heat insulating, ice sheet insulation etc. all fail to obtain special ideal effect.

Summary of the invention

The object of the present invention is to provide a kind of variable flow artificial swamp that is provided with the Winter protection heating device; Utilize microbial metabolism produces between two wall constructions heat to come that insulation heats to wetland; Thereby reduce the influence of temperature, guarantee that artificial swamp can move continually and steadily wetland.

Be the realization above-mentioned purpose, the variable flow artificial swamp that is provided with the Winter protection heating device provided by the invention, its primary structure is:

Vertically and abreast be filled with three sections fillers in the artificial swamp, be provided with water distributor at the top of three sections fillers, the bottom of three sections fillers is provided with the receipts water pipe, and this receives the water outlet and the filler top sustained height of water pipe;

One end top of three sections fillers connects a water inlet pipe, and the other end bottom connects rising pipe, the water outlet of this rising pipe and filler top sustained height;

Water distributor and water inlet pipe are connected respectively to water head tank;

During the water distributor water inlet, by the water outlet water outlet of receiving water pipe, water inlet pipe and rising pipe are closed;

During the water inlet pipe water inlet, by the water outlet water outlet of rising pipe, water distributor is closed with the receipts water pipe.

The guardrail of artificial swamp periphery is two walls, and the Shuan Qiang top of artificial swamp is an opening or airtight; The inside of two walls is filled with the organism of the heat production of fermenting; Airtight Shuan Qiang top, top is provided with gas tube, and this gas tube connects a tank, and the water pipe of this tank is connected to artificial swamp;

Can carry out the mutual conversion of horizontal-flow wetland and vertical-flow wetland through the adjusting of water distribution pipe.

Described variable flow artificial swamp, wherein, filler is the one or more combination in zeolite, gravel, Wingdale, slag, the gac etc.

Described variable flow artificial swamp; Wherein, in three sections filler total lengths, one section filler of top connection water inlet pipe accounts for the 10%-20% of total length; One section filler of bottom connection rising pipe accounts for the 5%-10% of total length, and the interlude filler accounts for the 70%-85% of total length.

Described variable flow artificial swamp, wherein, in three sections fillers, one section filler of top connection water inlet pipe is connected one section filler of rising pipe with the bottom particle diameter is 16-32mm, the particle diameter of interlude filler is 8-16mm; The filler degree of depth is not less than 85% of the artificial swamp degree of depth.

Described variable flow artificial swamp, wherein, water distributor and water inlet pipe are connected to water head tank through water intaking valve respectively; Receive water pipe and rising pipe and be separately installed with main control valve and the branch control valve that is in different heights.

Described variable flow artificial swamp wherein, is received the branch control valve of installing on water pipe and the rising pipe and respectively is three, and the installation site of three branch control valves is respectively: be higher than artificial swamp bed height degree, be positioned at filler the centre, be positioned at bottom the body of artificial swamp.

Described variable flow artificial swamp, wherein, water distributor, receipts water pipe all adopt the pvc pipe of DN100mm-DN120mm; The water distributor water distribution uniformity; Every bore dia is 1-3cm at a distance from hole of 10-20cm cloth, receives filler place, the corresponding stage casing of water pipe and is provided with the receipts water hole; Every at a distance from hole of 5-10cm cloth, bore dia is 1-3cm.

Described variable flow artificial swamp, wherein, the strong emergent of the upper strata of artificial swamp plantation soil removability.

Described variable flow artificial swamp, wherein, the bottom of two portions within the walls is covered with impervious barrier.

Described variable flow artificial swamp, wherein, the organism of two portions within the walls filling is one or more in domestic refuse, cow dung, pig manure and the stalk; Packed height in a little higher than artificial swamp of organic height.

The variable flow wetland can be according to the adjusting of the concrete temperature Change in the external world through water distribution pipe; Carry out the mutual conversion of horizontal-flow wetland and vertical-flow wetland; It is low to have overcome the horizontal-flow wetland dissolved oxygen of intaking summer; The shortcoming that vertical-flow wetland thermosteresis in winter is many utilizes the heat that microbial metabolism produces between two wall constructions to heat for wetland is incubated constantly winter, has reduced the influence of outside air temperature to wetland; Increased the wetland temperature inside, guaranteed that artificial swamp can move continually and steadily under the coldcondition.Blockage problem can slowed down even overcome to advantages such as the current scour matrix of different directions and decomposing organic matter efficient height.The present invention can be widely used in the Winter protection of various buried, non-buried wetlands, has characteristics such as pollution-free, reduced investment, working cost are low, simple to operate, high insulating effect, resource circulation utilization, processing power is strong, last effect is stable.

Description of drawings

Fig. 1 is a structural profile synoptic diagram of the present invention, and two walls wherein are aerobic fermentation heat production structure.

Fig. 2 is a structural profile synoptic diagram of the present invention, and two walls wherein are the anaerobic fermentation heat structure.

Embodiment

Concrete structure of the present invention sees also Fig. 1 and Fig. 2.

Need to prove that it is left and right, upper and lower that the present invention mentioned etc., all is to be as the criterion with Fig. 1, direction shown in Figure 2 except that specified otherwise is arranged.

Vertically be filled with the limestone filler of different-grain diameter in the artificial swamp, artificial swamp inside is divided into left side section 4, stage casing 5 and right section 6.Particularly, the particle diameter of the limestone filler of left side section 4 and right section 6 is 16-32mm, and the particle diameter of the limestone filler in stage casing 5 is 8-16mm, and the filler degree of depth is not less than 85% of the artificial swamp degree of depth.

High-order inlet flume 1 flows in the artificial swamp through the sewage that water inlet pipe 2 and water distributor 15 are handled desire respectively.

Vertical and ground that be parallel to each other is filled with the filler of different-grain diameter in the artificial swamp; Filler of the present invention is a known technology; Such as: the combination of zeolite, gravel, Wingdale, slag, gac etc. and various different fillers; The present invention is that limestone filler is that example describes, and artificial swamp inside is divided into left side section 4, stage casing 5 and right section 6.Particularly, the limestone filler particle diameter of left side section 4 and right section 6 is 16-32mm, and the limestone filler particle diameter in stage casing 5 is 8-16mm.

Artificial swamp has a water inlet pipe 2 and 15, one rising pipes 9 of a water distributor and a receipts water pipe 16, controls Inlet and outlet water through water-in and water-out pipe valve separately respectively.Particularly,, be connected water inlet pipe 2 through upper strata water intaking valve 3 with top water inlet pipe 13 between high-order inlet flume 1 and the left side section 4, likewise, be connected top water inlet pipe 13 through top water intaking valve 14 between high-order inlet flume 1 and the water distributor 15 in a side of artificial swamp; At the opposite side of artificial swamp, the bottom of right section 6 is equipped with rising pipe 9, master control valve 7 is installed on the rising pipe 9 and divides control valve 8,10,11; The bottom of artificial swamp is equipped with receives water pipe 16, receives master control valve 17 to be installed on the water pipe 16 and to divide control valve 18,19,20.Divide in control valve 8,10,11 (18,19,20); The height of the highest branch control valve 10 (19) is identical with the artificial swamp packed height at least; Minimum branch control valve 8 (18) is the bottom that is in artificial swamp; It is the medium position that is in limestone filler that intermediary divides control valve 11 (20), can regulate the water level of artificial wetland unit through minute control valve.

The guardrail of artificial swamp periphery is two wall 22 structures, and two walls 22 inside are filled with ight soil, reed, the active sludge mixture 23 that mixes.

Two walls 22 inner bottoms are covered with impervious barrier, the percolate that produces when preventing ight soil, reed, 23 fermentations of the active sludge mixture polluted underground water that permeates the ground.

The operation of the present invention when operation is:

Two walls 22 structural top among Fig. 1 are openings; Reed after kibbler pulverized and ight soil and active sludge carry out uniform mixing; (this is known technology through adding its water ratio of water adjusting; And be not the emphasis that the present invention discusses, do not describe in detail), the height of the limestone filler in a little higher than artificial swamp of the height of mixture; Mixture is every to stay wide 0.2 meter height ventilation slot consistent with the mixture height at a distance from 1~2 meter, and 0.1~0.2 meter thick reed of covering is to reach heat preservation effect above the mixture.

When artificial swamp is vertical downstream wetland; The master control valve 7 of the rising pipe 9 of upper strata water intaking valve 3 and bottom is closed; Top water intaking valve 14 is opened, and begins water inlet by top water inlet pipe 13 through water distributor 15, simultaneously; A unlatching in the main control valve 17 of the receipts water pipe 12 of bottom and the branch control valve 18,19,20 is by receipts water pipe 16 water outlets of bottom.

When artificial swamp is horizontal flow; Close the master control valve 17 of the receipts water pipe 12 of top water intaking valve 14 and bottom; Master control valve 7 and the branch of opening the rising pipe 9 of upper strata water inlet pipe valve 3 and bottom are controlled in the valve 8,10,11, begin water inlet, rising pipe 9 water outlets of bottom by water inlet pipe 2.

Vertical current and horizontal flow can transform, and the transformation period should confirm that winter transportation behavior vertical current, severe winter operate to horizontal flow as before according to practical situation.

Of the present invention being installed on starts late autumn, in sustainable whole winter, treats can the heat production product collection of inside be used as after heat production finishes the fertilizer in farmland.

Two walls 22 among Fig. 2 are sealed states, at two wall 22 inner anaerobic environments that form, help facultative and metabolic heat production anaerobion.

Reed after kibbler pulverized carries out uniform mixing with ight soil and active sludge, and (this is a known technology, and is not the emphasis that the present invention discusses through adding its water ratio of water adjusting; Do not describe in detail); The height of the limestone filler in a little higher than artificial swamp of the height of mixture seals two walls 22 tops, and in its top layout gas tube 21 is arranged; The biogas that produces gets in the water head tank 1 through gas tube 21, has guaranteed two anaerobic environments of portion within the walls.

When artificial swamp is vertical downstream wetland; The master control valve 7 of the rising pipe 9 of upper strata water intaking valve 3 and bottom is closed; Top water intaking valve 14 is opened, and begins water inlet by top water inlet pipe 13 through water distributor 15, simultaneously; A unlatching in the main control valve 17 of the receipts water pipe 12 of bottom and the branch control valve 18,19,20 is by receipts water pipe 16 water outlets of bottom.

When artificial swamp is horizontal flow; Close the master control valve 17 of the receipts water pipe 12 of top water intaking valve 14 and bottom; Master control valve 7 and the branch of opening the rising pipe 9 of upper strata water inlet pipe valve 3 and bottom are controlled in the valve 8,10,11, begin water inlet, rising pipe 9 water outlets of bottom by water inlet pipe 2.

Vertical current and horizontal flow can transform, and the transformation period should confirm that winter transportation behavior vertical current, severe winter operate to horizontal flow as before according to practical situation.

Of the present invention being installed on starts late autumn, in sustainable whole winter, treats can the heat production product collection of inside be used as after heat production finishes the fertilizer in farmland.

Claims (10)

1. variable flow artificial swamp that is provided with the Winter protection heating device, primary structure is:
Vertically and abreast be filled with three sections fillers in the artificial swamp, be provided with water distributor at the top of three sections fillers, the bottom of three sections fillers is provided with the receipts water pipe, and this receives the water outlet and the filler top sustained height of water pipe;
One end top of three sections fillers connects a water inlet pipe, and the other end bottom connects rising pipe, the water outlet of this rising pipe and filler top sustained height;
Water distributor and water inlet pipe are connected respectively to water head tank;
During the water distributor water inlet, by the water outlet water outlet of receiving water pipe, water inlet pipe and rising pipe are closed;
During the water inlet pipe water inlet, by the water outlet water outlet of rising pipe, water distributor is closed with the receipts water pipe.
The guardrail of artificial swamp periphery is two walls, and the Shuan Qiang top of artificial swamp is an opening or airtight; The inside of two walls is filled with the organism of the heat production of fermenting; Airtight Shuan Qiang top, top is provided with gas tube, and this gas tube connects a tank, and the water pipe of this tank is connected to artificial swamp;
Can carry out the mutual conversion of horizontal-flow wetland and vertical-flow wetland through the adjusting of water distribution pipe.
2. variable flow artificial swamp according to claim 1, wherein, filler is the one or more combination in zeolite, gravel, Wingdale, slag, the gac.
3. variable flow artificial swamp according to claim 1; Wherein, in three sections filler total lengths, one section filler of top connection water inlet pipe accounts for the 10%-20% of total length; One section filler of bottom connection rising pipe accounts for the 5%-10% of total length, and the interlude filler accounts for the 70%-85% of total length.
4. according to claim 1,2 or 3 described variable flow artificial swamps, wherein, in three sections fillers, one section filler of top connection water inlet pipe is connected one section filler of rising pipe with the bottom particle diameter is 16-32mm, and the particle diameter of interlude filler is 8-16mm; The filler degree of depth is not less than 85% of the artificial swamp degree of depth.
5. variable flow artificial swamp according to claim 1, wherein, water distributor and water inlet pipe are connected to water head tank through water intaking valve respectively; Receive water pipe and rising pipe and be separately installed with main control valve and the branch control valve that is in different heights.
6. variable flow artificial swamp according to claim 5; Wherein, Receive the branch control valve of installing on water pipe and the rising pipe and respectively be three, the installation site of three branch control valves is respectively: be higher than artificial swamp bed height degree, be positioned at filler the centre, be positioned at bottom the body of artificial swamp.
7. according to claim 1,5 or 6 described variable flow artificial swamps, wherein, water distributor, receipts water pipe all adopt the pvc pipe of DN100mm-DN120mm; The water distributor water distribution uniformity; Every bore dia is 1-3cm at a distance from hole of 10-20cm cloth, receives filler place, the corresponding stage casing of water pipe and is provided with the receipts water hole; Every at a distance from hole of 5-10cm cloth, bore dia is 1-3cm.
8. variable flow artificial swamp according to claim 1, wherein, the strong emergent of the upper strata of artificial swamp plantation soil removability.
9. variable flow artificial swamp according to claim 1, wherein, the bottom of two portions within the walls is covered with impervious barrier.
10. variable flow artificial swamp according to claim 1, wherein, the organism of two portions within the walls filling is one or more in domestic refuse, cow dung, pig manure and the stalk; Packed height in a little higher than artificial swamp of organic height.
CN2012100044212A 2012-01-09 2012-01-09 Variable flow constructed wetland provided with winter temperature maintaining and raising device CN102531185B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100044212A CN102531185B (en) 2012-01-09 2012-01-09 Variable flow constructed wetland provided with winter temperature maintaining and raising device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100044212A CN102531185B (en) 2012-01-09 2012-01-09 Variable flow constructed wetland provided with winter temperature maintaining and raising device

Publications (2)

Publication Number Publication Date
CN102531185A true CN102531185A (en) 2012-07-04
CN102531185B CN102531185B (en) 2013-10-16

Family

ID=46339404

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012100044212A CN102531185B (en) 2012-01-09 2012-01-09 Variable flow constructed wetland provided with winter temperature maintaining and raising device

Country Status (1)

Country Link
CN (1) CN102531185B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103936160A (en) * 2014-04-09 2014-07-23 东华大学 Geothermal heating sewage treatment system for artificial horizontal subsurface flow wetland
CN104031825A (en) * 2013-03-07 2014-09-10 西北民族大学 Low-temperature anaerobic biogas fermentation tank
CN104445831A (en) * 2014-12-18 2015-03-25 重庆大学 Household type rural domestic wastewater treatment and recycling integrated system
CN104787895A (en) * 2015-04-21 2015-07-22 武汉中科水生环境工程股份有限公司 Self-purified type recirculation aquaculture system
CN105174430A (en) * 2015-09-16 2015-12-23 中国科学院东北地理与农业生态研究所 Self-heating cold-operation artificial wetland purification plant and purification method
WO2019114744A1 (en) * 2017-12-13 2019-06-20 中国环境科学研究院 Heavy metal prevention and control system and heavy metal prevention and control method using same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005074407A (en) * 2003-09-04 2005-03-24 Okumura Corp Water cleaning facility
CN201882979U (en) * 2010-12-15 2011-06-29 武汉昌宝环保工程有限公司 Artificial double water inlet wetland device for circulating and reinforcing nitrogen removal
CN102145956A (en) * 2010-02-04 2011-08-10 山东大学 Self-made heat bow-shaped shed rapid infiltration system
CN201952328U (en) * 2011-01-10 2011-08-31 山东大学 Landscape inverted biological quick filtration device
CN102260021A (en) * 2011-06-01 2011-11-30 同济大学 Process and device for deep denitrogenation of domestic wastewater without additional carbon source

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005074407A (en) * 2003-09-04 2005-03-24 Okumura Corp Water cleaning facility
CN102145956A (en) * 2010-02-04 2011-08-10 山东大学 Self-made heat bow-shaped shed rapid infiltration system
CN201882979U (en) * 2010-12-15 2011-06-29 武汉昌宝环保工程有限公司 Artificial double water inlet wetland device for circulating and reinforcing nitrogen removal
CN201952328U (en) * 2011-01-10 2011-08-31 山东大学 Landscape inverted biological quick filtration device
CN102260021A (en) * 2011-06-01 2011-11-30 同济大学 Process and device for deep denitrogenation of domestic wastewater without additional carbon source

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104031825B (en) * 2013-03-07 2016-02-24 西北民族大学 Anaerobic in low temperature marsh-gas fermentation tank
CN104031825A (en) * 2013-03-07 2014-09-10 西北民族大学 Low-temperature anaerobic biogas fermentation tank
CN103936160B (en) * 2014-04-09 2015-12-16 东华大学 A kind of underground heat is from warm horizontal drowned flow artificial wet land Sewage treatment systems
CN103936160A (en) * 2014-04-09 2014-07-23 东华大学 Geothermal heating sewage treatment system for artificial horizontal subsurface flow wetland
CN104445831A (en) * 2014-12-18 2015-03-25 重庆大学 Household type rural domestic wastewater treatment and recycling integrated system
CN104445831B (en) * 2014-12-18 2016-08-24 重庆大学 A kind of family formula rural domestic sewage treatment, reusing integral system
CN104787895A (en) * 2015-04-21 2015-07-22 武汉中科水生环境工程股份有限公司 Self-purified type recirculation aquaculture system
CN105174430A (en) * 2015-09-16 2015-12-23 中国科学院东北地理与农业生态研究所 Self-heating cold-operation artificial wetland purification plant and purification method
CN105174430B (en) * 2015-09-16 2019-03-26 中国科学院东北地理与农业生态研究所 A kind of self-heating type cold operation Constructed Wetland For Purifying device and purification method
WO2019114744A1 (en) * 2017-12-13 2019-06-20 中国环境科学研究院 Heavy metal prevention and control system and heavy metal prevention and control method using same

Also Published As

Publication number Publication date
CN102531185B (en) 2013-10-16

Similar Documents

Publication Publication Date Title
CN201129040Y (en) Energy-saving environment-friendly building
EP3051121A1 (en) Method and facility for producing backup electrical power
CN201176435Y (en) Two-row strong rotating solar methane tank
CN102297525B (en) High-temperature anaerobic fermentation heating system of solar energy-biogas slurry waste heat recovery type heat pump and operation control method
CN103289885A (en) Intestinal-tract type biogas generating system
CN102172202B (en) Device for automatically controlling irrigation and water draining of paddy field
CN205189098U (en) A rainwater garden for building district
CN100522853C (en) Sludge phase-splitting slaking method of water treatment plant
CN104418433B (en) High efficiency composition artificial wetland sewage water treatment method
US20130175215A1 (en) Engineered wetland device of continuous operation for wastewater treatment under low temperature
CN201954660U (en) Double water tank normal pressure water supply and heat accumulation solar hot water unit
EP2692701B1 (en) Process and plant for wastewater treatment and energy generation
CN104986860B (en) Ecological treatment technology for power-free river water purification
CN102926362B (en) Pollution control and emission reduction method for farmland drainage
CN101891304A (en) Tidal flow constructed wetland with rich reoxygenation
CN104560676A (en) Super-efficient biogas slurry turbulent-type methane generation system
CN204714671U (en) The device of a kind of aquaculture process excrement dirt
CN102261108B (en) Hydraulic floating selective water getting device
CN104649530B (en) A kind of aquaculture processes the method that excrement is dirty
CN102191168B (en) Wind stirring and heating type anaerobic fermentation tank
CN201999789U (en) Anaerobic pulse water distribution system
CN100491663C (en) Solar energy water-seeping evaporation and radiation electricity-generating room
WO2011146871A2 (en) Method and system for providing effluent from at least one wastewater treatment plant
CN102155758B (en) Comprehensive heating system by using hot water based on fire pit
CN2921026Y (en) Solar energy methane generator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant