CN103130384A - Multi-baffle subsurface flow constructed wetland system - Google Patents
Multi-baffle subsurface flow constructed wetland system Download PDFInfo
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- CN103130384A CN103130384A CN2013101073467A CN201310107346A CN103130384A CN 103130384 A CN103130384 A CN 103130384A CN 2013101073467 A CN2013101073467 A CN 2013101073467A CN 201310107346 A CN201310107346 A CN 201310107346A CN 103130384 A CN103130384 A CN 103130384A
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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
Abstract
The invention relates to a constructed wetland system, and particularly relates to a multi-baffle subsurface flow constructed wetland system which can enable water to repeatedly flow through multiple baffles. In the wetland system, low flow regulation walls and high flow regulation walls are sequentially and alternately distributed in the water flow direction of the wetland, wherein the lower part of each low flow regulation wall is provided with a penetrable low flow guide hole; and each high flow regulation wall is a water overflow wall or a water penetration wall of which the upper part is provided with a high flow guide hole. Each low flow regulation wall is provided with the low flow guide hole in the multi-baffle subsurface flow constructed wetland system, so that the low flow regulation wall can be directly constructed at the bottom of the wetland system in the construction process without using an overhung structure, thus lowering the construction cost, facilitating the wall foundation arrangement of the low flow regulation wall and ensuring the intensity of the low flow regulation wall. In conclusion, the multi-baffle subsurface flow constructed wetland system lowers the construction cost of the baffled subsurface flow constructed wetland while increasing the intensity of the flow regulation walls of the baffled subsurface flow constructed wetland.
Description
Technical field
The present invention relates to artificial wet land system, particularly relate to a kind of current that can allow and repeatedly roll over the multiple subsurface flow constructed wetland system of the moving multiple folding of resurgent.
Background technology
Artificial swamp, also can be described as artificial wetland, by artificial construction and supervision and control, utilize physics, chemistry and biological triple synergies in the ecosystem, realize the system that the high-efficient purification of sewage is processed by means such as filtration, absorption, precipitation, ion-exchange, plant absorbing and microorganism decomposition.General artificial wet land system has following features: (1) construction and working cost are low; (2) be easy to safeguard; (3) can carry out wastewater treatment effectively reliably; (4) can cushion impact to waterpower and pollution load; (5) can bring benefits, as aquatic products, livestock products, paper making raw material, building materials, greening, wild fauna and flora perch, amusement and education.Artificial wet land system is a kind of ecological pollution treatment measure that should widely popularize.
Artificial swamp can effectively be applied to the deep purifying of multiple sewage, and the nourishment source of high-quality is provided for the target water body, ensures the quality of water environment of target water body.The current artificial wetland process that adopts flows to according to water body can be divided into surface low, undercurrent and vertical current constructed wetland, and the difference of wet land technique, its range of application are also different.Artificial wetland treatment process is as a kind of ecological pollution treatment technology, its outstanding advantages is embodied in this technique ecology, environmental protection, less energy-consumption, pollution-free in operational process, but how to have artificial wet land system technique now by change, improve its clean dirty effect, be the key that the restriction Artificial Wetland Techniques is applied always.
Notification number is that the Chinese patent of CN200946117Y discloses a kind of reflecting flow type undercurrent artificial everglade, this artificial swamp by pump sump, water inlet may, wetland bed body and outlet sump consist of, the position, intermediate portion is provided with the baffling body of wall on the direction vertical with current, this artificial swamp can extend the residence time of sewage in wetland.Utilize matrix--physics, chemistry and biological triple coordinative roles of this complex ecosystem of microorganism plant, efficiently process high concentrated organic wastewater by filtration, absorption, precipitation, ion-exchange, decomposition.
Analyze from principle, above-mentioned reflecting flow type undercurrent artificial everglade is to play good cleaning action.But, in the process that reality is implemented, but run into the obstacle that to cross over, the high cost of namely building, most of unit all can't bear its expensive construction cost, thereby the above-mentioned baffling artificial wetland that can see in actual production at present is very few, and it is not applied widely.by analysis, the one of the main reasons that causes its high cost is the structure formation of baffling body of wall (transferring the stream wall), according to the principle of work of above introducing reflecting flow type undercurrent artificial everglade as can be known, for current are passed through from its bottom, the bottom of part baffling body of wall is to be the hanging type structure, this just requires must build the firm structures such as bearing beam when building, yet the floor space general expression of artificial swamp is very large, build the bearing beam across wetland on so large area, its difficulty of construction and quantities are all self-evident, required building materials quantity is also extremely considerable, and, even if like this, because being is top-heavy situation, the intensity of baffling body of wall still is difficult to guarantee.
Summary of the invention
The object of the present invention is to provide the multiple subsurface flow constructed wetland system of a kind of multiple folding, flow the intensity of wall with the accent that increases reflecting flow type undercurrent artificial everglade, and reduce the laid down cost to reflecting flow type undercurrent artificial everglade.
In order to address the above problem, multiple folding of the present invention is answered subsurface flow constructed wetland system by the following technical solutions: the multiple subsurface flow constructed wetland system of multiple folding, alternately be laid with successively low level along the current direction of wetland in this wet land system and transfer stream wall and the high-order stream wall of transferring, low level transfers the bottom of stream wall to be provided with penetrating low level pod apertures, and the high-order stream wall of transferring is provided with the waterwall of crossing of high-order pod apertures for unrestrained waterwall or top.
The high-order stream wall of transferring is the waterwall of crossing that top is provided with high-order pod apertures.
Described high-order pod apertures is embedded in wet land filler and the upper surface of close wet land filler.
When using the multiple subsurface flow constructed wetland system of this multiple folding to dispose of sewage, at first pending sewage enter wet land system from a high position, the low level pod apertures that flows wall due to the low level accent is positioned at the bottom, sewage will flow in from the upstream to downstream flow along the vertical direction, this moment sewage mobile horizontal drowned flow and the lower complex flow to vertical current of being similar to, to transfer the stream wall by a high position along obliquely direction by the sewage after the low level pod apertures, the fluidised form of sewage in this process be similar to horizontal drowned flow and on to the compound flowing state of vertical current.By a high position transfer the sewage of stream wall will repeat horizontal drowned flow, lower to vertical current compound and horizontal drowned flow, upper compound flowing state to vertical current; With respect to simple horizontal subsurface flow wetland, the flow process of the multiple subsurface flow constructed wetland system of this multiple folding is longer, the hydraulic detention time of sewage in wet land system is also corresponding longer, and long hydraulic detention time provides good envrionment conditions for absorption, the degraded of pollution substance; In addition, because the multiple subsurface flow constructed wetland system of this multiple folding is provided with described low level pod apertures on its low level accent stream wall, therefore, when building, can directly low level be transferred the stream wall to build the bottom of wet land system in, and need not to adopt hanging structure, one have reduced laid down cost, two have also facilitated the setting of low level being transferred stream wall body of wall basis, have guaranteed the intensity that low level is transferred the stream wall.In sum, the multiple subsurface flow constructed wetland system of this multiple folding has reduced the laid down cost to reflecting flow type undercurrent artificial everglade simultaneously on the intensity ground of the accent stream wall that increases reflecting flow type undercurrent artificial everglade.
Further, make high-order pod apertures near after the upper surface of wet land filler, when sewage was positioned near high-order pod apertures, because the oxic processes of Root of Wetland Plants is obvious, sewage can be under a relatively aerobic envrionment conditions; In the time of near sewage is positioned at the low level pod apertures, because packing layer is goed deep in this position, be in all the time anoxic condition; The process of conversion from the oxygen enrichment state to anoxic condition, the sewage anaerobic zone of flowing through again.Therefore, in this artificial wet land system, sewage will experience Aerobic-anaerobic-anoxic-anoxic-anaerobic-aerobic-Aerobic-anaerobic-anoxic-multiple envrionment conditionss such as anoxic-anaerobic-aerobic, and will be obvious to the decontamination effect improving of the pollutents such as the organism in sewage, nitrogen phosphorus.
Description of drawings
Fig. 1 is the structural representation of the multiple subsurface flow constructed wetland system of multiple folding.
Embodiment
The embodiment of the multiple subsurface flow constructed wetland system of multiple folding, as shown in Figure 1, alternately be laid with successively low level along the current direction of wetland in this wet land system and transfer stream wall 11 and the high-order stream wall 12 of transferring, in the present embodiment, low level transfers stream wall 11 to have two, the high-order stream wall 12 of transferring has one and transfer between the stream walls at two low levels, the bearing of trend that high-low position is transferred the stream wall all intersects with the current direction of wet land system, in the situation that other structure is not set, high-low position transfers the stream wall all to play the effect of interception Flow in Wetland; The bottom of low level accent stream wall 11 is provided with penetrating low level pod apertures 101, and high-order accent stream wall 12 was waterwall, and its top is provided with penetrating high-order pod apertures 102, and high-order pod apertures 102 is embedded in wet land filler 13 and the upper surface of close wet land filler 13.
When using the multiple subsurface flow constructed wetland system of this multiple folding to dispose of sewage, at first pending sewage enter wet land system from a high position, the low level pod apertures that flows wall due to the low level accent is positioned at the bottom, sewage will flow along the vertical direction in from the upstream to downstream flow (along the direction of arrow figure), this moment sewage mobile horizontal drowned flow and the lower complex flow to vertical current of being similar to, to transfer the stream wall by a high position along obliquely direction by the sewage after the low level pod apertures, the fluidised form of sewage in this process be similar to horizontal drowned flow and on to the compound flowing state of vertical current.By a high position transfer the sewage of stream wall will repeat horizontal drowned flow, lower to vertical current compound and horizontal drowned flow, upper compound flowing state to vertical current; With respect to simple horizontal subsurface flow wetland, the flow process of the multiple subsurface flow constructed wetland system of this multiple folding is longer, the hydraulic detention time of sewage in wet land system is also corresponding longer, and long hydraulic detention time provides good envrionment conditions for absorption, the degraded of pollution substance; In addition, when sewage was positioned near high-order pod apertures, because the oxic processes of Root of Wetland Plants is obvious, sewage can be under a relatively aerobic envrionment conditions; In the time of near sewage is positioned at the low level pod apertures, because packing layer is goed deep in this position, be in all the time anoxic condition; The process of conversion from the oxygen enrichment state to anoxic condition, the sewage anaerobic zone of flowing through again.Therefore, in this artificial wet land system, sewage will experience Aerobic-anaerobic-anoxic-anoxic-anaerobic-aerobic-Aerobic-anaerobic-anoxic-multiple envrionment conditionss such as anoxic-anaerobic-aerobic, and will be obvious to the decontamination effect improving of the pollutents such as the organism in sewage, nitrogen phosphorus.Below after overtesting, the treatment effect synopsis that obtains after the multiple subsurface flow constructed wetland system of this multiple folding and homalographic horizontal subsurface flow wetland system are compared:
By contrasting as seen, the multiple subsurface flow constructed wetland system of this multiple folding all is better than the conventional levels subsurface flow wetland system on the removal efficient to COD, TN and TP, have higher processing efficiency, has application value extremely widely.
In other embodiment of the multiple subsurface flow constructed wetland system of multiple folding, a high position can also be transferred the stream wall be made as unrestrained waterwall, in such cases, the top of unrestrained waterwall is embedded under the wet land filler of current wetland,, directly cover from its top and get final product through out-of-date when current.
Claims (3)
1. multiple folding is answered subsurface flow constructed wetland system, it is characterized in that, alternately be laid with successively low level along the current direction of wetland in this wet land system and transfer stream wall and the high-order stream wall of transferring, low level transfers the bottom of stream wall to be provided with penetrating low level pod apertures, and the high-order stream wall of transferring is provided with the waterwall of crossing of high-order pod apertures for unrestrained waterwall or top.
2. the multiple subsurface flow constructed wetland system of multiple folding according to claim 1, is characterized in that, the high-order stream wall of transferring is the waterwall of crossing that top is provided with high-order pod apertures.
3. the multiple subsurface flow constructed wetland system of multiple folding according to claim 2, is characterized in that, described high-order pod apertures is embedded in wet land filler and the upper surface of close wet land filler.
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| CN2013101073467A CN103130384A (en) | 2013-03-29 | 2013-03-29 | Multi-baffle subsurface flow constructed wetland system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005364A (en) * | 2014-06-17 | 2014-08-27 | 盐城上善环境科技有限公司 | Unpowered river bank landscape wet land water quality purification system |
| CN104692534A (en) * | 2015-02-14 | 2015-06-10 | 广东省生态环境与土壤研究所 | Vertical mixed flow type constructed wetland structure |
| CN110921833A (en) * | 2019-12-26 | 2020-03-27 | 暨南大学 | Sewage treatment system and method for strengthening anaerobic ammonia oxidation denitrification and phosphorus removal of domestic sewage |
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| CN101817590A (en) * | 2009-12-28 | 2010-09-01 | 中国科学院南京地理与湖泊研究所 | Turn-back horizontal flow wetland water quality advanced purification technology |
| CN101880089A (en) * | 2010-07-16 | 2010-11-10 | 华南理工大学 | Baffling type constructed wetland device for treatment of low-concentration area source pollution |
| CN202046934U (en) * | 2011-03-08 | 2011-11-23 | 北京仁创科技集团有限公司 | Artificial wetland water body treatment system |
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| US20130048557A1 (en) * | 2011-08-22 | 2013-02-28 | Modular Wetland Systems, Inc. | Dual-Chambered Wetland Biofilter Treatment System |
| CN202766358U (en) * | 2012-07-23 | 2013-03-06 | 复旦大学 | Reinforced constructed wetland device for deep wastewater treatment |
| CN203128368U (en) * | 2013-03-29 | 2013-08-14 | 黄河勘测规划设计有限公司 | Multi-folded underflow artificial wetland system |
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2013
- 2013-03-29 CN CN2013101073467A patent/CN103130384A/en active Pending
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| CN101880089A (en) * | 2010-07-16 | 2010-11-10 | 华南理工大学 | Baffling type constructed wetland device for treatment of low-concentration area source pollution |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005364A (en) * | 2014-06-17 | 2014-08-27 | 盐城上善环境科技有限公司 | Unpowered river bank landscape wet land water quality purification system |
| CN104692534A (en) * | 2015-02-14 | 2015-06-10 | 广东省生态环境与土壤研究所 | Vertical mixed flow type constructed wetland structure |
| CN110921833A (en) * | 2019-12-26 | 2020-03-27 | 暨南大学 | Sewage treatment system and method for strengthening anaerobic ammonia oxidation denitrification and phosphorus removal of domestic sewage |
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Application publication date: 20130605 |