CN103864216B - Wavy subsurface flow constructed wetland landscape water body treatment system and treatment process thereof - Google Patents
Wavy subsurface flow constructed wetland landscape water body treatment system and treatment process thereof Download PDFInfo
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- CN103864216B CN103864216B CN201410066877.0A CN201410066877A CN103864216B CN 103864216 B CN103864216 B CN 103864216B CN 201410066877 A CN201410066877 A CN 201410066877A CN 103864216 B CN103864216 B CN 103864216B
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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 discloses a kind of wavy subsurface flow constructed wetland landscape water body treatment system and treatment process thereof, horizontal drowned flow artificial wet land and vertical subsurface flow wetland combine by this system, form a kind of wavy subsurface flow constructed wetland.By arranging upper and lower dividing plate regularly in wetland inside, with waveform fluidised form substitution level fluidised form, the water flow mode that the up-downgoing stream making sewage form several series connection replaces, makes organic nutrient substance obtain fully degraded and promotes the deposition of phosphorus significantly; Sewage carries out anaerobicaerobic process repeatedly, is conducive to the removal of nitrogen; In wet land filler, add appropriate Wingdale, discharge Ca
2+make sewage phosphorus element generate the deposition of insoluble calcium phosphate salt, thus improve the clearance of phosphorus.The mode that the present invention takes interval water distribution, the water inlet of bottom opening water distributor, multiple wavy subsurface flow constructed wetland serial or parallel connection to run, makes constructed wetland bed body play larger efficiency, improves nitrogen, phosphorus and organic clearance, enhance sewage treatment capacity.
Description
Technical field
The invention belongs to environmental protection technical field, be specifically related to a kind of wavy subsurface flow constructed wetland Sewage treatment systems for the treatment of landscape water body and treatment process thereof.
Background technology
Landscape water body mostly is static or the closed slow flow water bodies of poor fluidity, and this just means its vulnerable to pollution, and self-purification capacity is poor, and water environment capacity is lower.Landscape water body is general all in the crowd is dense district, due to the bad habit of resident and the injection of periphery pollutent, makes landscape water pollution serious, very easily eutrophication occurs, have a strong impact on its landscape function.Artificial swamp is as a kind of processing costs and the low environmentally friendly sewage disposal technology of capital cost, it utilizes the physics of system mesostroma-waterplant-microorganism, chemistry, biological triple synergy, carries out high-efficient purification by matrix filtration, absorption, precipitation, ion-exchange, plant absorption and microbial decomposition to sewage.Compared with traditional second-stage treatment technology, it is low that artificial swamp has Construction and operation expense, power consumption is few, effluent quality is good, running maintenance is convenient, and system configuration plasticity-is strong, to load variations strong adaptability, there are higher nitrogen, phosphorus ligands ability and ecological environment benefit significantly and can beautify the environment, realizing the features such as waste water reclaiming.Its application is subject to increasing attention.
Through finding the literature search of prior art, the artificial marsh sewage treating method of existing process landscape water body, as system and treatment process that CN201110370614.5 is the horizontal Surface Constructed Wetlands Treating Wastewater of a kind of compound, the main processing units of described system comprises first step horizontal subsurface flow wetland processing unit and the second stage horizontal baffling wetland variation unit of two-stage series connection, described first step horizontal subsurface flow wetland processing unit is provided with the nitrated band of vertical current, sewage is removed gravity flow after most of sand grains and suspended particulate matter through preliminary sedimentation tank and is entered nitrated band, then utilize first step horizontal drowned flow artificial wet land and second stage horizontal baffling wetland variation unit to complete final process and remove function, it is low that this system has processing cost, floor space is little, the advantages such as good denitrification dephosphorization effect, but structure is comparatively complicated, horizontal drowned flow artificial wet land is not fully combined with the advantage of vertical subsurface flow wetland, CN201010255219.8 discloses a kind of landscape-type composite artificial wetland treatment device and application of eutrophication water, surface stream has been carried out vertical compound with horizontal drowned flow artificial wet land, has superposed series connection up and down by the combined artificial wetland in this invention in a plane base, have that floor space is little, processing efficiency is high, construction cost is low, the advantage such as not easily blocking, good operation stability, landscape effect are good, but surface current artificial wetland exists easily grows the not high shortcoming of mosquitos and flies, nitrification ability, horizontal drowned flow artificial wet land nitrification ability is also poor, horizontal drowned flow artificial wet land, vertical subsurface flow wetland and surface current artificial wetland are organically combined composition compound wetland unit by CN201020126627.9, have good purification, structure and more simply, not easily occur features such as blocking, easy to maintenance.Prior art mainly utilizes surface current artificial wetland, horizontal drowned flow artificial wet land, vertical subsurface flow wetland and multi-form combination thereof, sewage horizontal flow in surface current artificial wetland and horizontal drowned flow artificial wet land, cause its Nitrogen/Phosphorus Removal not as vertical subsurface flow wetland, vertical subsurface flow wetland is good denitrogenation and dephosphorization effect no doubt, but it falls, the time that is dry, waterflooding is longer, causes organic removal ability not as horizontal drowned flow artificial wet land.
Summary of the invention
The shortcoming that the present invention is directed to prior art, with not enough, provides a kind of landscape water body treatment system and treatment process thereof of wavy subsurface flow constructed wetland.
Both horizontal drowned flow artificial wet land and vertical subsurface flow wetland combine by the present invention, become a kind of novel current wetland-wavy subsurface flow constructed wetland.By arranging regularly in wetland inside, the flow condition of lower clapboard to conventional flat current wetland is improved, with waveform fluidised form substitution level fluidised form, the water flow mode that the up-downgoing stream making sewage form several series connection replaces, repeatedly there is through inside, over-wet land the filler of different treatment characteristic, with wet land system middle level, the microorganism of lower floor fully contacts with matrix, increase the hydraulic detention time of sewage in wetland inside, simultaneously the moving up and down of current, bring dissolved oxygen into middle level more, lower floor, make organic nutrient substance obtain fully degraded and promote the deposition of phosphorus significantly, in addition, sewage makes sewage repeatedly carry out anaerobicaerobic process repeatedly alternatively up and down, typical A/O technique, be conducive to the removal of nitrogen.In wetland bed body filler, add appropriate Wingdale simultaneously, discharge Ca
2+make sewage phosphorus element can generate the deposition of insoluble calcium phosphate salt, thus improve the clearance of phosphorus.In addition, take the mode that interval water distribution, the water inlet of bottom opening water distributor, multiple wavy subsurface flow constructed wetland serial or parallel connection run, make wavy subsurface flow constructed wetland bed body play larger efficiency, improve nitrogen, phosphorus and organic clearance, thus reach the object strengthening sewage disposal.
The present invention is achieved by following technical solution.
A kind of wavy subsurface flow constructed wetland landscape water body treatment system, comprise water pump, equalizing tank, water inlet pipe, rising pipe and artificial swamp, it is characterized in that, the water side of described water pump (1) is connected with equalizing tank (2), equalizing tank (2) is respectively by water inlet pipe A(6), water inlet pipe B(8) and water inlet pipe C(10) and wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) with wavy subsurface flow constructed wetland C(5) be connected, the rising pipe A(7 of wavy subsurface flow constructed wetland), rising pipe B(9), rising pipe C(11) be aggregated into drop water outlet (12),
Described wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) with wavy subsurface flow constructed wetland C(5) constitutional features identical, the water inlet pipe A(6 of wavy subsurface flow constructed wetland), water inlet pipe B(8) and water inlet pipe C(10) port be horizontally arranged with water distributor A(13 respectively), water distributor B(14) and water distributor C(15); Water distributor A(13) below of tube wall is provided with two arrangement water holes (30), water distributing pore (30) and water distributor A(13) the center of circle, cross section sea line to be at 45 °ly staggered, water distributor A(13) the water distributing pore largest diameter in mid-way, the diameter of other water distributing pore is reduced to two ends successively by centre, and the width between centers of every two water distributing pores (30) of often arranging is 100mm;
Wavy subsurface flow constructed wetland A(3) in be provided with lower clapboard A(25), upper spacer A(26) and lower clapboard B(27), upper spacer B(28), by wavy subsurface flow constructed wetland A(3) be divided into 5 parts, be provided with filler (31) between every two dividing plates, planting above of filler (31) is implanted with plant (32); Wavy subsurface flow constructed wetland A(3) near rising pipe A(7) side be provided with effluent weir (29), effluent weir (29) and wavy subsurface flow constructed wetland A(3) pool wall between form outlet sump (33); The weir crest of effluent weir (29) is apart from wetland bed body top i.e. distance pool wall top 30cm; Upper spacer A(26) with upper spacer B(28) top flush with wetland bed body top, its underpart distance wetland bottom 15cm; Lower clapboard A(25) and lower clapboard B(27) apart from wetland bed body top 30cm;
This treatment system is by valve A(16), valve B(17), valve C(18), valve D(19), valve E(20), valve F(21), valve G(22), valve H(23) and valve I(24) control to intake, the flow of water outlet;
As valve H(23) and valve I(24) close, when all the other valves are all opened, wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) and wavy subsurface flow constructed wetland C(5) parallel running; As valve-off D(19), valve E(20), valve G(22), when all the other valves are all opened, wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) after parallel connection again with wavy subsurface flow constructed wetland C(5) series operation.
Described equalizing tank (2) is provided with aeration, oxygenation and removes the device of peculiar smell.
Described equalizing tank (2) is the skeleton construction of 8 × 8 × 1.5m.
Described wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) and wavy subsurface flow constructed wetland C(5) be the skeleton construction of 15 × 15 × 1.5m.
In described equalizing tank (2), lowest water level is higher than wavy subsurface flow constructed wetland 0.1m.
The bottom of described filler (31) is supporting layer, and supporting layer is provided with the Large stone gravel that particle diameter is 7-8cm, and loading is highly 40cm; Be main packing layer above supporting layer, main packing layer is provided with shale and Wingdale, and particle diameter is 2.5-3.5cm, and packing height is 60cm, and shale and Wingdale volume ratio are 7:3, the two Homogeneous phase mixing; For preventing line clogging, on shale, packing height is the Large stone gravel of 20cm;
Described outlet sump (33) is of a size of long 1m, wide 15m, high 1.5m.
The diameter of described water distributing pore (30), at water distributor A(13) mid-way be 12mm, be decreased to 9mm by mid-way successively to two ends.
The treatment process of described wavy subsurface flow constructed wetland landscape water body treatment system, step is as follows:
(1) through water pump (1) polluted river in river course promoted and enter equalizing tank (2), regulating water quality and the water yield, in equalizing tank (2), carry out aeration, oxygenation remove peculiar smell simultaneously;
(2) river after equalizing tank (2) process, by water inlet pipe A(6), water inlet pipe B(8), water inlet pipe C(10), then by water distributor A(13), water distributor B(14), water distributor C(15) respectively gravity flow enter wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) and wavy subsurface flow constructed wetland C(5); When processing the water yield and being more, under the prerequisite ensureing effluent quality, valve H(23) and valve I(24) close, all the other valves are all opened, wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) and wavy subsurface flow constructed wetland C(5) parallel running; When influent quality is deteriorated, valve-off D(19), valve E(20), valve G(22), all the other valves are all opened, wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) after parallel connection again with wavy subsurface flow constructed wetland C(5) series operation;
(3) water flow mode that replaced by up-downgoing streams that the upper spacer of wavy subsurface flow constructed wetland, lower clapboard form several series connection of sewage, repeatedly there is through inside, over-wet land the filler (31) of different treatment characteristic, with in artificial wet land system, the microorganism of lower floor fully contacts with filler, increase the hydraulic detention time of sewage in wetland inside, simultaneously the moving up and down of current, in more dissolved oxygen being brought into, lower floor, make organic nutrient substance obtain fully degraded and promote the deposition of phosphorus significantly; Because sewage makes sewage repeatedly carry out anaerobicaerobic process repeatedly alternatively up and down, be typical A/O technique, be conducive to the removal of nitrogen; Again owing to adding Wingdale in filler, discharge Ca
2+make sewage phosphorus element can generate the deposition of insoluble calcium phosphate salt, thus improve the clearance of phosphorus; This wavy subsurface flow constructed wetland landscape water body treatment system adopts interval water distribution manner, makes system be in waterflooding, fall dry alternating state, to ensure that microorganism obtains sufficient oxygen, thus improves the clearance of nitrogen.
(4) outlet sump (33) adopts effluent weir (29) submerge discharging flow mode, and the river after system process passes back into river course by the water outlet that drops (12).
Compared with prior art, tool has the following advantages in the present invention:
1. the inner sewage of wavy subsurface flow constructed wetland is in the mixing pattern comprising horizontal flow, up stream and downstream, in wetland bed body filler, add appropriate Wingdale and the mode taking interval water distribution simultaneously, make treatment system have higher nitrogen, phosphorus and organic removal rate.
2. wavy subsurface flow constructed wetland bed body inside arranges upper spacer, lower clapboard, makes current in flow process not easily " short circuit ", strengthens the degree of mixing of different water depth sewage.
3. wavy subsurface flow constructed wetland feed-water end adopts the water inlet of bottom opening water distributor, employing weir, water side submerge discharging flow, such that wetland water distribution is even, hydraulics is better.
4., compared with horizontal drowned flow artificial wet land, the anti impulsion load ability of wavy subsurface flow constructed wetland is larger, and water outlet is more steady.
5. wavy subsurface flow constructed wetland integrates the advantage of horizontal drowned flow artificial wet land and vertical subsurface flow wetland, and structure is simple, floor space is little, reduce construction, operation, safeguard and overhead charges.
Accompanying drawing explanation
Fig. 1 is wavy subsurface flow constructed wetland landscape water body treatment system structural representation of the present invention;
Fig. 2 is wavy subsurface flow constructed wetland plane structure chart of the present invention;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is wavy subsurface flow constructed wetland water distributor plane structure chart of the present invention;
Fig. 5 is the B-B sectional view of Fig. 4.
Reference numeral of the present invention is as follows:
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described, but protection scope of the present invention is not limited to following specific embodiment.
Specific embodiment for handling object, implements the present invention with the landscape water body in certain urban development area, the north.
This wavy subsurface flow constructed wetland Sewage treatment systems, equalizing tank (2) is connected with in the water side of water pump (1), equalizing tank (2) is respectively by water inlet pipe A(6), water inlet pipe B(8) and water inlet pipe C(10) with wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) with wavy subsurface flow constructed wetland C(5) be connected, the rising pipe A(7 of wavy subsurface flow constructed wetland), rising pipe B(9), rising pipe C(11) be aggregated into drop water outlet (12); Described equalizing tank (2) is provided with aeration, oxygenation and removes the device of peculiar smell, and equalizing tank is the skeleton construction of 8 × 8 × 1.5m, and its lowest water level is higher than wavy subsurface flow constructed wetland 0.1m; Rising pipe A(7), rising pipe B(9) and rising pipe C(11) be the pvc pipe of diameter 200mm;
Described artificial swamp A(3), artificial swamp B(4) with artificial swamp C(5) constitutional features identical, be the skeleton construction of 15 × 15 × 1.5m; The water inlet pipe A(6 of artificial swamp), water inlet pipe B(8) and water inlet pipe C(10) port be horizontally arranged with water distributor A(13 respectively), water distributor B(14) and water distributor C(15); Water distributor A(13) below of tube wall is provided with two arrangement water holes (30), water distributing pore (30) and water distributor A(13) the center of circle, cross section sea line to be at 45 °ly staggered, water distributor A(13) the water distributing pore largest diameter in mid-way, for 12mm, the diameter of other water distributing pore is reduced to two ends successively by centre, two ends water distributing pore diameter is minimum, is 9mm, and the width between centers of every two water distributing pores (30) of often arranging is 100mm;
Wavy subsurface flow constructed wetland A(3) in be provided with lower clapboard A(25), upper spacer A(26) and lower clapboard B(27), upper spacer B(28), by wavy subsurface flow constructed wetland A(3) be divided into 5 parts, the long 2.8m of every part, be provided with filler (31) between every two dividing plates, planting above of filler (31) is implanted with plant (32); The bottom of described filler (31) is supporting layer, and supporting layer is provided with the Large stone gravel that particle diameter is 7-8cm, and loading is highly 40cm; Be main packing layer above supporting layer, main packing layer is provided with shale and Wingdale, and particle diameter is 2.5-3.5cm, and packing height is 60cm, and shale and Wingdale volume ratio are 7:3, the two Homogeneous phase mixing; For preventing line clogging, on shale, packing height is the Large stone gravel of 20cm;
Wavy subsurface flow constructed wetland A(3) near rising pipe A(7) side be provided with effluent weir (29), effluent weir (29) and artificial swamp A(3) pool wall between form outlet sump (33), outlet sump (33) is of a size of long 1m, wide 15m, high 1.5m; The weir crest of effluent weir (29) is apart from wetland bed body top i.e. distance pool wall top 30cm; Upper spacer A(26) with upper spacer B(28) top flush with wetland bed body top, its underpart distance wetland bottom 15cm; Lower clapboard A(25) and lower clapboard B(27) apart from wetland bed body top 30cm;
This treatment system is by valve A(16), valve B(17), valve C(18), valve D(19), valve E(20), valve F(21), valve G(22), valve H(23) and valve I(24) control to intake, the flow of water outlet;
As valve H(23) and valve I(24) close, when all the other valves are all opened, wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) and wavy subsurface flow constructed wetland C(5) parallel running; As valve-off D(19), valve E(20), valve G(22), when all the other valves are all opened, wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) after parallel connection again with wavy subsurface flow constructed wetland C(5) series operation.
The treatment process of this wavy subsurface flow constructed wetland Sewage treatment systems, step is as follows:
Through water pump (1) polluted river in river course promoted and enter equalizing tank (2), regulating water quality and the water yield, in equalizing tank (2), carry out aeration, oxygenation remove peculiar smell simultaneously;
River after equalizing tank (2) process, by water inlet pipe A(6), water inlet pipe B(8), water inlet pipe C(10), then by water distributor A(13), water distributor B(14), water distributor C(15) respectively gravity flow enter wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) and wavy subsurface flow constructed wetland C(5); When processing the water yield and being more, under the prerequisite ensureing effluent quality, valve H(23) and valve I(24) close, all the other valves are all opened, wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) and wavy subsurface flow constructed wetland C(5) parallel running; When influent quality is deteriorated, valve-off D(19), valve E(20), valve G(22), all the other valves are all opened, wavy subsurface flow constructed wetland A(3), wavy subsurface flow constructed wetland B(4) after parallel connection again with wavy subsurface flow constructed wetland C(5) series operation;
The water flow mode that up-downgoing streams that sewage forms several series connection by the upper spacer of wavy subsurface flow constructed wetland, lower clapboard replace, repeatedly there is through inside, over-wet land the synthem of the filler (31) of different treatment characteristic, with in artificial wet land system, the microorganism of lower floor fully contacts with filler, increase the hydraulic detention time of sewage in wetland inside, simultaneously the moving up and down of current, in more dissolved oxygen being brought into, lower floor, make organic nutrient substance obtain fully degraded and promote the deposition of phosphorus significantly; Because sewage makes sewage repeatedly carry out anaerobicaerobic process repeatedly alternatively up and down, be typical A/O technique, be conducive to the removal of nitrogen; Again owing to adding Wingdale in filler, discharge Ca
2+make sewage phosphorus element can generate the deposition of insoluble calcium phosphate salt, thus improve the clearance of phosphorus;
This wavy subsurface flow constructed wetland landscape water body treatment system adopts interval water distribution manner, makes system be in waterflooding, fall dry alternating state, to ensure that microorganism obtains sufficient oxygen, thus improves the clearance of nitrogen.
Wavy subsurface flow constructed wetland A(3) plant Black Hills rib, planting density is 10 strains/m
2, wavy subsurface flow constructed wetland B(4) and wavy subsurface flow constructed wetland C(5) plant wilson iris and cattail respectively, planting density is 15 strains/m
2, this three kind of plant is applicable to the weather condition in this city, comparatively strong to the pollutent such as nitrogen, phosphorus receptivity, soaking-resistant and stain resistance is strong, and well developed root system, growth cycle are long, biological yield is large.
Outlet sump (33) adopts effluent weir (29) submerge discharging flow mode, and the river after system process passes back into river course by the water outlet that drops (12).
Conveniently carry out sampling to detect, need carry out punching, sampling on the pool wall of artificial swamp.
The process water yield of this embodiment is average 500m
3/ d, influent quality situation refers to table 1.Pass through actual motion, in water body after system process, the average aqueous concentration of TN, TP, COD is respectively 1.48mg/L, 0.25mg/L, 31mg/L, simultaneously on apparent without floating matter, smell and taste without beastly, reach " water environment quality standard " (GB3838-2002) IV class water quality standard.Describe and utilize this system restoring landscape water body water quality to be feasible.
Table 1
Claims (5)
1. a wavy subsurface flow constructed wetland landscape water body treatment system, comprise water pump, equalizing tank, water inlet pipe, rising pipe and artificial swamp, it is characterized in that, the water side of described water pump (1) is connected with equalizing tank (2), equalizing tank (2) is respectively by water inlet pipe A (6), water inlet pipe B (8) and water inlet pipe C (10) and wavy subsurface flow constructed wetland A (3), wavy subsurface flow constructed wetland B (4) is connected with wavy subsurface flow constructed wetland C (5), the rising pipe A (7) of wavy subsurface flow constructed wetland, rising pipe B (9), rising pipe C (11) is aggregated into drop water outlet (12),
Described wavy subsurface flow constructed wetland A (3), wavy subsurface flow constructed wetland B (4) are identical with the constitutional features of wavy subsurface flow constructed wetland C (5), and water inlet pipe A (6), the water inlet pipe B (8) of wavy subsurface flow constructed wetland and the port of water inlet pipe C (10) are horizontally arranged with water distributor A (13), water distributor B (14) and water distributor C (15) respectively; The below of water distributor A (13) tube wall is provided with two arrangement water holes (30), water distributing pore (30) is staggered with the center of circle, the cross section sea line of water distributor A (13) is at 45 °, the water distributing pore largest diameter in water distributor A (13) mid-way, the diameter of other water distributing pore is reduced to two ends successively by centre, and the width between centers of every two water distributing pores (30) of often arranging is 100mm;
Lower clapboard A (25), upper spacer A (26) and lower clapboard B (27), upper spacer B (28) is provided with in wavy subsurface flow constructed wetland A (3), wavy subsurface flow constructed wetland A (3) is divided into 5 parts, be provided with filler (31) between every two dividing plates, planting above of filler (31) is implanted with plant (32); Wavy subsurface flow constructed wetland A (3) is provided with effluent weir (29) near the side of rising pipe A (7), forms outlet sump (33) between the pool wall of effluent weir (29) and wavy subsurface flow constructed wetland A (3); The weir crest of effluent weir (29) is apart from wetland bed body top i.e. distance pool wall top 30cm; Upper spacer A (26) flushes with wetland bed body top with the top of upper spacer B (28), 15cm bottom the distance wetland of its underpart; Lower clapboard A (25) and lower clapboard B (27) are apart from wetland bed body top 30cm;
This treatment system controls the flow of water inlet, water outlet by valve A (16), valve B (17), valve C (18), valve D (19), valve E (20), valve F (21), valve G (22), valve H (23) and valve I (24); When valve H (23) and valve I (24) closes, when all the other valves are all opened, wavy subsurface flow constructed wetland A (3), wavy subsurface flow constructed wetland B (4) and wavy subsurface flow constructed wetland C (5) parallel running; As valve-off D (19), valve E (20), valve G (22), when all the other valves are all opened, after wavy subsurface flow constructed wetland A (3), wavy subsurface flow constructed wetland B (4) parallel connection again with wavy subsurface flow constructed wetland C (5) series operation;
Described equalizing tank (2) is provided with aeration, oxygenation and removes the device of peculiar smell;
In described equalizing tank (2), lowest water level is higher than wavy subsurface flow constructed wetland 0.1m;
The bottom of described filler (31) is supporting layer, and supporting layer is provided with the Large stone gravel that particle diameter is 7-8cm, and loading is highly 40cm; Be main packing layer above supporting layer, main packing layer is provided with shale and Wingdale, and particle diameter is 2.5-3.5cm, and packing height is 60cm, and shale and Wingdale volume ratio are 7:3, the two Homogeneous phase mixing; For preventing line clogging, on shale, packing height is the Large stone gravel of 20cm;
The diameter of described water distributing pore (30), in water distributor A (13) mid-way is 12mm, is decreased to 9mm by mid-way successively to two ends.
2. wavy subsurface flow constructed wetland landscape water body treatment system according to claim 1, is characterized in that, described equalizing tank (2) is the skeleton construction of 8 × 8 × 1.5m.
3. wavy subsurface flow constructed wetland landscape water body treatment system according to claim 1, it is characterized in that, described wavy subsurface flow constructed wetland A (3), wavy subsurface flow constructed wetland B (4) and wavy subsurface flow constructed wetland C (5) are the skeleton construction of 15 × 15 × 1.5m.
4. wavy subsurface flow constructed wetland landscape water body treatment system according to claim 1, is characterized in that, described outlet sump (33) is of a size of long 1m, wide 15m, high 1.5m.
5. the treatment process of wavy subsurface flow constructed wetland landscape water body treatment system according to claim 1, step is as follows:
(1) through water pump (1) polluted river in river course promoted and enter equalizing tank (2), regulating water quality and the water yield, in equalizing tank (2), carry out aeration, oxygenation remove peculiar smell simultaneously;
(2) river after equalizing tank (2) process, by water inlet pipe A (6), water inlet pipe B (8), water inlet pipe C (10), then flow automatically respectively enter wavy subsurface flow constructed wetland A (3), wavy subsurface flow constructed wetland B (4) and wavy subsurface flow constructed wetland C (5) by water distributor A (13), water distributor B (14), water distributor C (15); When processing the water yield and being more, under the prerequisite ensureing effluent quality, valve H (23) and valve I (24) closes, all the other valves are all opened, wavy subsurface flow constructed wetland A (3), wavy subsurface flow constructed wetland B (4) and wavy subsurface flow constructed wetland C (5) parallel running; When influent quality is deteriorated, valve-off D (19), valve E (20), valve G (22), all the other valves are all opened, after wavy subsurface flow constructed wetland A (3), wavy subsurface flow constructed wetland B (4) parallel connection again with wavy subsurface flow constructed wetland C (5) series operation;
(3) water flow mode that replaced by up-downgoing streams that the upper spacer of wavy subsurface flow constructed wetland, lower clapboard form several series connection of sewage, repeatedly there is through inside, over-wet land the filler (31) of different treatment characteristic, with in artificial wet land system, the microorganism of lower floor fully contacts with filler, increase the hydraulic detention time of sewage in wetland inside, simultaneously the moving up and down of current, in more dissolved oxygen being brought into, lower floor, make organic nutrient substance obtain fully degraded and promote the deposition of phosphorus significantly; Because sewage makes sewage repeatedly carry out anaerobicaerobic process repeatedly alternatively up and down, be typical A/O technique, be conducive to the removal of nitrogen; Again owing to adding Wingdale in filler, discharge Ca
2+make sewage phosphorus element can generate the deposition of insoluble calcium phosphate salt, thus improve the clearance of phosphorus; This wavy subsurface flow constructed wetland landscape water body treatment system adopts interval water distribution manner, makes system be in waterflooding, fall dry alternating state, to ensure that microorganism obtains sufficient oxygen, thus improves the clearance of nitrogen;
(4) outlet sump (33) adopts effluent weir (29) submerge discharging flow mode, and the river after system process passes back into river course by the water outlet that drops (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066877.0A CN103864216B (en) | 2014-02-26 | 2014-02-26 | Wavy subsurface flow constructed wetland landscape water body treatment system and treatment process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066877.0A CN103864216B (en) | 2014-02-26 | 2014-02-26 | Wavy subsurface flow constructed wetland landscape water body treatment system and treatment process thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN103864216A CN103864216A (en) | 2014-06-18 |
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| CN105174485A (en) * | 2015-11-03 | 2015-12-23 | 安徽洋森环保节能科技有限公司 | Waveform underflow artificial wetland treatment system |
| CN106348461A (en) * | 2016-10-28 | 2017-01-25 | 江苏通全球工程管业有限公司 | Modularized ecological utilization constructed wetland |
| CN106396079A (en) * | 2016-11-22 | 2017-02-15 | 苏州邦源环境科技有限公司 | Gravity flow water distribution disc |
| CN106745784A (en) * | 2017-01-23 | 2017-05-31 | 岭南新科生态科技研究院（北京）有限公司 | The current wetland cleaning system and its operating method of a kind of alternation of wetting and drying |
| CN109292997A (en) * | 2018-11-29 | 2019-02-01 | 黄冬艳 | A kind of artificial marsh sewage treatment system |
| CN111977794A (en) * | 2020-07-20 | 2020-11-24 | 南京沃德思环保科技有限公司 | Natural oxygenation constructed wetland processing apparatus |
| CN112062283B (en) * | 2020-09-08 | 2022-09-23 | 苏州德华生态环境科技股份有限公司 | Water collecting system suitable for super-large water volume single-point water distribution condition of vertical subsurface flow wetland |
| CN112661270A (en) * | 2020-12-02 | 2021-04-16 | 重庆交通大学 | Constructed wetland water distribution system |
| CN116553737B (en) * | 2023-06-05 | 2023-12-01 | 悉地（苏州）勘察设计顾问有限公司 | Matrix type parallel arrangement subsurface wetland water flow control system |
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| CN102351376A (en) * | 2011-07-08 | 2012-02-15 | 中国科学院水生生物研究所 | Riverbank multiple pond wetland waste sewage treatment method and device |
| CN203768123U (en) * | 2014-02-26 | 2014-08-13 | 天津大学 | Wavy subsurface-flow constructed wetland landscape water body treatment system |
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| CN102351376A (en) * | 2011-07-08 | 2012-02-15 | 中国科学院水生生物研究所 | Riverbank multiple pond wetland waste sewage treatment method and device |
| CN203768123U (en) * | 2014-02-26 | 2014-08-13 | 天津大学 | Wavy subsurface-flow constructed wetland landscape water body treatment system |
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