CN205170509U - Constructed wetland and sewage treatment system - Google Patents
Constructed wetland and sewage treatment system Download PDFInfo
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- CN205170509U CN205170509U CN201520996420.XU CN201520996420U CN205170509U CN 205170509 U CN205170509 U CN 205170509U CN 201520996420 U CN201520996420 U CN 201520996420U CN 205170509 U CN205170509 U CN 205170509U
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- 239000010865 sewage Substances 0.000 title claims abstract description 90
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000006213 oxygenation reaction Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 81
- 238000005273 aeration Methods 0.000 claims description 24
- 238000000855 fermentation Methods 0.000 claims description 19
- 230000004151 fermentation Effects 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 10
- 244000005700 microbiome Species 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 16
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 8
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 8
- 239000011574 phosphorus Substances 0.000 abstract description 8
- 239000010902 straw Substances 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 35
- 238000000034 method Methods 0.000 description 26
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 24
- 239000007789 gas Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 15
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- 244000099162 Cyperus alternifolius Species 0.000 description 6
- 235000014676 Phragmites communis Nutrition 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
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- 238000003306 harvesting Methods 0.000 description 5
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 241001148470 aerobic bacillus Species 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 235000011089 carbon dioxide Nutrition 0.000 description 4
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 150000003384 small molecules Chemical class 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
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- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000216843 Ursus arctos horribilis Species 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229920006262 high density polyethylene film Polymers 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
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- 238000013327 media filtration Methods 0.000 description 1
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Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
-
- 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
-
- 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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model is suitable for a sewage treatment technical field provides a constructed wetland and sewage treatment system, including preliminary treatment pond, constructed wetland, grid pond, oxygenation device, sewage firing equipment, solar energy power supply system and control system. The grid pond is arranged in filtering the great debris of sewage, and solar energy power supply system provides the energy for the oxygenation device, control system control oxygenation device in open and the closed condition between alternately switched, make the preliminary treatment pond form the AO system for organic matter, ammonia nitrogen, total nitrogen and total phosphorus in the sewage can both obtain the degradation. Can ferment after the plant that constructed wetland planted is reaped, prepare marsh gas, sewage as in the fuel -heating preliminary treatment pond makes sewage heat up or keeps suitable temperature, helps going on of in preliminary treatment pond biological treatment. Owing to be that the next heat energy of plant straw conversion does not need additionally to supply the energy, saved the energy consumption, realized minimizing of plant straw and resourceization.
Description
Technical field
The utility model belongs to technical field of sewage, particularly relates to a kind of artificial marsh sewage treatment system.
Background technology
Microbial treatment method is the conventional treatment process of sanitary sewage, and power consumption is inevitable in this approach.Because in domestic sewage processing method, the equipment of pump and these power consumptions of gas blower (or other oxygen replenishing equipment) is all required.In the general knowledge of people, cost working cost process waste water belongs to forced but very normal thing, and people progressively accept this reality.In addition on the one hand; the energy dilemma in the whole world impels people to start there have been the theories such as energy-saving and emission-reduction, cleaner production and low-carbon economy; for field of waste water treatment, water treatment work needs actively to find new replacement method, and power namely can be spent less even not spend the Sewage treatment systems of power.
Artificial wet land system is the less water treatment system of a kind of power consumption.It is by artificial method, build wet land system, utilize media filtration, plant root system absorption and medium in microorganism be used for process waste water, especially the process of sanitary sewage is achieved noticeable achievement.
Traditional artificial wet land system generally comprises acidication unit and wetland unit.Acidication unit carries out pre-treatment to waste water, by hydrolytic action, larger molecular organics is converted into small organic molecule, thus is more easily degraded by the Institute of Micro-biology in the medium in wetland unit.Acidication unit in addition, can be converted into ammonia nitrogen by the organonitrogen in waste water, is more conducive to the absorption of wetland unit institute planting plants and the degraded of microorganism.
Traditional Artificial Wetland Techniques has following defect: the contribution of 1. preposition hydrolysis acidification pool to treatment effect is little, major part organism rely on the medium crown_interception of wetland, root system adsorption and microorganism effect and remove, the methods such as hydrolysis acidification pool itself is not high to the clearance of pollutent, the A/O system (i.e. aerobic/anaerobic technique or aerobic/anaerobic technique) making the pollutants removal rate of whole artificial swamp more traditional are low.2. hydrolysis acidification pool often can send acid, smelly or produce undesirable smell.3. because the contaminant removal efficiency of hydrolysis acidification pool is not high, the organism in sanitary sewage especially organically suspended substance (or claiming particulate matter) easily causes the blocking of artificial swamp.4. owing to not having oxygenation in hydrolysis acidification pool, thus hydrolysis acidification pool water outlet dissolved oxygen content is low, can stink in wetland.5. the cleaning action of the microorganism of wetland unit is faint, because the content of useless oxygen in water is on the low side.
For the above-mentioned defect of Traditional Man wetland technology, someone improves hydrolysis acidification pool, increase aerating system and filler, form contact-oxidation pool, this change is eliminated undoubtedly or is reduced above-mentioned deficiency, but the energy supply that the need of work of aerating system is a large amount of, therefore, the method result in the forfeiture of Traditional Man wetland technology power saving advantages.
In addition, existing Artificial Wetland Techniques fluctuation of service.No matter be hydrolysis acidification pool or improved contact-oxidation pool, principle adopts microbiological treatment, and microbiological treatment needs suitable temperature, when arriving temperature reduction winter, the microorganism active of hydrolysis acidification pool or contact-oxidation pool is deteriorated, process pollutent efficiency step-down, and then affect the removal effect of whole system to pollutent.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of artificial marsh sewage treatment system, is intended to solve pollutants removal rate existing in existing Artificial Wetland Techniques lower, the problem of fluctuation of service and high energy consumption.
The utility model is achieved in that a kind of artificial marsh sewage treatment system, comprises the pretreatment pool and artificial swamp that are interconnected, plants and be implanted with plant in described artificial swamp; Described artificial marsh sewage treatment system also comprises grating tank, to the oxygen-increasing device of the sewage oxygenation in described pretreatment pool, to provide the energy resource system of the energy and control the Controlling System that described oxygen-increasing device alternately switches between open and close state to described oxygen-increasing device; Be provided with some grizzly bars spaced apart in described grating tank, described oxygen-increasing device is electrically connected with described energy resource system, Controlling System.
Further, described artificial marsh sewage treatment system also comprises to the sewage heating installation of the sewage heating in described pretreatment pool, described sewage heating installation comprises wetland plant fermentation vat and methane boiler, the plant-filled gathered in described artificial swamp is in described wetland plant fermentation vat, and ferment in wetland plant fermentation vat, produce biogas, the biogas in described wetland plant fermentation vat accesses in described methane boiler, for the water in heating biogas boiler by pipeline.
Further, described sewage heating installation also comprises hot water effluent's pipeline, hot water circulating pump, heat-exchanger rig and boiler blow-down water pipeline, and described heat-exchanger rig is arranged in described pretreatment pool; Described methane boiler, hot water effluent's pipeline, hot water circulating pump, heat-exchanger rig and boiler blow-down water pipeline are communicated with successively, form a closed loop heating system, the heat of himself is passed to the sewage in pretreatment pool by described heat-exchanger rig, and then heats or be incubated the sewage in pretreatment pool.
Further, described energy resource system comprises solar electric power supply system, and described solar electric power supply system comprises polycrystalline silicon solar plate, solar charging/discharging controller, store battery and the invertor for direct current being transferred to alternating-current; The input terminus of described solar charging/discharging controller is electrically connected with polycrystalline silicon solar plate, and the output terminal of described solar charging/discharging controller is electrically connected with described store battery, invertor; Described invertor is electrically connected with described oxygen-increasing device, Controlling System.
Further, described pretreatment pool inside is provided with some bridging, carries microorganism in described some bridging.
Further, described pretreatment pool adopts underground type skeleton construction, and described bridging is formed by half soft polypropylene material manufacture, and described some bridging intervals are arranged, and the distance between adjacent two bridging is 100mm-200mm.
Further, described oxygen-increasing device comprises gas blower and is arranged at several aeration heads in pretreatment pool, several aeration heads described access the air of described gas blower ejection by pipeline, described Controlling System controls described gas blower and alternately switches between open and close state, and intermittently in described pretreatment pool, pass into air by described aeration head, make described pretreatment pool form the A/O system in carrying out a biological disposal upon.
Further, the gap width between adjacent two described grizzly bars is 5mm-10mm.
The utility model compared with prior art, beneficial effect is: be provided with oxygen-increasing device in pretreatment pool in the utility model, when oxygen-increasing device is opened, oxygenation state is in pretreatment pool, organism in sewage is hydrolyzed under the effect of aerobic bacteria, form carbonic acid gas and water, ammonia nitrogen is then oxidized to nitrogen oxide.When oxygen-increasing device is closed, pretreatment pool is in anoxic condition, and organism is hydrolyzed under the effect of anaerobism or anoxic bacterium, and macromole becomes small molecules, and the nitrogen oxide formed during aerobic treatment is reduced to nitrogen under anoxic conditions, and then is removed.The utility model is by the step alternation of oxygen-increasing device, define the A/O system in biological treatment, organism in sewage, ammonia nitrogen, total nitrogen and total phosphorus can be degraded, by heating or making waste water keep temperature, improve the removal efficiency of pollutent, thus alleviate the load of subsequent disposal, be beneficial to the further process of artificial swamp.In follow-up artificial wetland treatment, sewage is by under the sand of filling in it, the filteration of stone, the effect of microorganism of wherein breeding and the adsorption of institute's planting plants root system, artificial swamp completes the further removal of COD, ammonia nitrogen and total phosphorus, makes the final qualified discharge of water outlet.The plant optimization of planting in artificial swamp is cyperus alternifolius and reed, and the clearance of two kind of plant to contained in sewage COD, ammonia nitrogen and total phosphorus is all very high, and scavenging effect is remarkable.Meanwhile, oxygen-increasing device of the present utility model, Controlling System and pumping etc. adopt solar energy system as the energy, without the need to additional energy source as propulsion source, possess the advantages such as energy-saving and emission-reduction, cleaner production and low-carbon economy.
In addition, can put in wetland plant fermentation vat after the plant harvesting of artificial swamp plantation and ferment, form biogas by fermentation and be supplied to the fuel of methane boiler as heat hot water.The hot water of methane boiler heating is then as the sewage in heating medium heat pre-treatment pond.Owing to being that the heat energy come by Plants of Constructed Wetlands stover does not need extra supplementing energy, saving energy consumption, achieve straw minimizing and resource utilization, make biomass energy be converted into heat energy, the application of supply Sewage treatment systems.
Accompanying drawing explanation
Fig. 1 is a kind of artificial marsh sewage treatment system structural representation that the utility model embodiment provides.
Fig. 2 is the confession electrical schematic of the solar electric power supply system in Fig. 1.
Fig. 3 is the structural representation of the Controlling System control artificial marsh sewage treatment system in Fig. 1.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1 to Figure 3, for a preferred embodiment of the present utility model, a kind of artificial marsh sewage treatment system, comprise grating tank 1, pretreatment pool 2, oxygen-increasing device 3, artificial swamp 4, sewage heating installation, energy resource system, Controlling System 8 and liquid conducting pipes, wherein, energy resource system comprises solar electric power supply system 7.
Flase floor 11 and liquid level detector 12 is provided with in grating tank 1.Flase floor 1 adopts stainless material to make, and it has some grizzly bar (not shown)s spaced apart, and the gap width between adjacent two grizzly bars is 5mm-10mm, can retain leaf, hair, foreign material etc.Liquid level detector 12 can adopt liquidometer, for detecting the height of sewage in grating tank 1 in real time.
Pretreatment pool 2 adopts underground type skeleton construction, and hydraulic detention time is 8h-12h, its sidewall is provided with overflow groove 21, and pretreatment pool 2 is communicated with artificial swamp by overflow groove 21.Pretreatment pool 2 inside is provided with some bridging 22, carries biology in bridging 22, and bridging 22 is formed by half soft polypropylene material manufacture, and some bridging 22 intervals are arranged, and the distance between adjacent two bridging 22 is 100mm-200mm.Oxygen-increasing device 3 comprises gas blower 31 and is arranged at several aeration head (not shown)s in pretreatment pool 2, the air that aeration head is sprayed by pipeline access gas blower 31; Aeration head is Ethylene Propylene Terpolymer diaphragm type structure, and the distribution number of aeration head is 4-8/m
2useful area sewage.
Also be provided with the temperature detector 23 for detecting sewage temperature and the liquid level detector 24 for detecting sewage highly in pretreatment pool 2, temperature detector 23, liquid level detector 24 are all electrically connected with Controlling System 8.In actual applications, temperature detector 23 can adopt thermometer.Sewage is driven into pretreatment pool 2 by a lift pump 10, and lift pump 10 is electrically connected with Controlling System 8.
Artificial swamp 4 is Steel Concrete bottom surface or lays high density polyethylene(HDPE) (HDPE) film, and side adopts brick mixing structure structure or lays HDPE film, film thickness 1.5mm-2mm; 25mm-40mm particle diameter stone, 8mm-20mm particle diameter stone and coarse sand are filled from the bottom to top successively in its inside.Plant in artificial swamp 4 and be implanted with plant, institute's kind of plant is cyperus alternifolius and reed.
Sewage heating installation comprises wetland plant fermentation vat 5, methane boiler 6, hot water effluent's pipeline 90, hot water circulating pump 20, heat-exchanger rig 30 and boiler blow-down water pipeline 40.Heat-exchanger rig 30 is arranged in pretreatment pool 2; Methane boiler 6, hot water effluent's pipeline 90, hot water circulating pump 20, heat-exchanger rig 30 and boiler blow-down water pipeline 40 are communicated with successively, form a closed loop heating system.The heat of himself is passed to the sewage in pretreatment pool 2 by heat-exchanger rig 30, and then heats or be incubated the sewage in pretreatment pool 2.
Wetland plant fermentation vat 5 is provided with dog-house 51 and methane outlet 52, the dog-house 51 into wetland plant fermentation vat 5 directly can be thrown in after the straw harvesting of plantation in artificial swamp 4, straw is in wetland plant fermentation vat 5 anaerobically fermenting, produce biogas, biogas accesses in methane boiler 6, for the water in heating biogas boiler 6 by pipeline.
Methane boiler 6 is provided with combustion unit 61 and hot water boiler 62.Combustion unit 61 is provided with biogas import 611, hot water boiler 62 is provided with hot water outlet 621, backwater import 622, newly water supplement entrance 623, thermometer 624 and liquidometer 625.The entrance of hot water effluent's pipeline 90 connects with the hot water outlet 621 of hot water boiler 62, the outlet of hot water effluent's pipeline 90 connects with hot water circulating pump 20 water-in, hot water circulating pump 20 water outlet connects with heat-exchanger rig 30 water-in, and heat-exchanger rig 30 water outlet connects with the backwater import 622 of hot water boiler 62.
Solar electric power supply system 7 comprises polycrystalline silicon solar plate 71, bracing frame 72, solar charging/discharging controller 73, store battery 74 and the invertor 75 for direct current being transferred to alternating-current.Polycrystalline silicon solar plate 71 is installed on bracing frame 72, and the input terminus of solar charging/discharging controller 73 is electrically connected with polycrystalline silicon solar plate 71, and the output terminal of solar charging/discharging controller 73 is electrically connected with store battery 74, invertor 75; Invertor 75 is electrically connected with gas blower 31, lift pump 10, hot water circulating pump 20 and Controlling System 8.Thus solar electric power supply system 7 can be gas blower 31, lift pump 10, hot water circulating pump 20 and Controlling System 8 and powers.
Liquid conducting pipes comprises grating tank inlet channel 91, grating tank outlet conduit 92, pretreatment pool inlet channel 93, pretreatment pool outlet conduit 94, artificial swamp inlet channel 95, artificial wetland effluent pipeline 96, biogas transport pipe 97, above-mentioned hot water effluent's pipeline 90, boiler blow-down water pipeline 40 and boiler water-filling pipeline 50.Grating tank inlet channel 91 is provided with magnetic valve 911, grating tank outlet conduit 92 is connected with the import of lift pump 10.Pretreatment pool inlet channel 93 exports with lift pump 10 and is connected.Pretreatment pool outlet conduit 94 is connected with artificial swamp inlet channel 95; Biogas transport pipe 97 is provided with magnetic valve 971.Biogas transport pipe 97 is connected with wetland plant fermentation vat 5 methane outlet 52.Biogas transport pipe 97 is connected with the biogas import 611 on the combustion unit 61 of methane boiler 6; Hot water circulating pump 20 is communicated with hot water effluent's pipeline 90.
Controlling System 8 is PLC control system, it comprises remote control panel, and its sequence of control comprises: the control of the control of two position in grating tank 1, pretreatment pool 2 two position, the control of pretreatment pool 2 water temperature, the control of hot water boiler 62 water temperature and the aeration control of aeration head.
Above-mentioned grating tank 1 regulates flooding quantity to realize grating tank 1 Liquid level by magnetic valve 911 aperture controlled on grating tank inlet channel 91.Pretreatment pool 2, by controlling the opening of lift pump 10, stopping, regulates flooding quantity to realize pretreatment pool 2 Liquid level.By controlling the opening of hot water circulating pump 20, stopping, regulate heat hot water internal circulating load to realize pretreatment pool 2 water temperature and control.Hot water boiler 62 controls by the magnetic valve 971 controlled on biogas transport pipe 97 control that biogas feed rate realizes water temperature.The control of aeration is amount and the time of opening, stopping controlling aeration by controlling gas blower 31.
Controlling System 8 controls gas blower 31 and alternately switches between open and close state, intermittently in pretreatment pool 2, passes into air by aeration head, makes pretreatment pool 2 form the A/O system in carrying out a biological disposal upon.Therefore, the control of aeration is interval alternative expression, and operationally, aeration head aeration 6h, stops 3h, and alternate repetition carries out.Pretreatment pool 2 water temperature in winter controls under the more excellent treatment condition of 25-30 DEG C; Hot water boiler 62 heat hot water temperature controls at 90 ± 5 DEG C.
Principle of work or the process of each mechanism of the Sewage treatment systems of above-mentioned sun power artificial swamp are as follows:
Grating tank 1 retains:
First sewage input grating tank 1, under the crown_interception of flase floor 11 (interval of grid strip is 5mm-10mm), in sewage, the leaf, hair, foreign material etc. of more than 5mm is trapped within flase floor 11, the foreign material meeting periodic cleaning retained, the sewage after filtering then is delivered to pretreatment pool 2 by lift pump 10.The high and low liquid level of grating tank 1 is controlled by magnetic valve 911.
Pretreatment pool 2 anaerobic-aerobic process---the control of aeration:
Sewage in pretreatment pool 2 can carry out the alternate treatment of aerobic/anaerobic, impels the carrying out of nitrification and denitrification, thus completes denitrogenation.And it controls gas blower 31 mainly through Controlling System 8, interval can supply oxygen supply alternately to aeration head, aeration head, then with aeration 6h, stops the setting program oxygen supply of 3h.Biological bacterium in half soft polypropylene bridging carrier then carries out nitrification and denitrification reaction under the alternate environment of this oxygenation, anoxic.During gas blower 31 aeration, be in oxygenation state in pretreatment pool 2, organism is degraded under the effect of aerobic bacteria, forms carbonic acid gas and water; Ammonia nitrogen is then oxidized to nitrogen oxide.When gas blower 31 does not work, be in anoxic condition in pretreatment pool 2, organism is hydrolyzed under the effect of anaerobic bacterium, and macromole becomes small molecules, and the nitrogen oxide formed during aerobic treatment is reduced to nitrogen under anoxic conditions and is removed.By the alternation of gas blower 31, in fact form the A/O system in biological treatment.Organism in waste water, ammonia nitrogen, total nitrogen and total phosphorus can be degraded, and alleviate the load of subsequent disposal, be beneficial to the process of subsequent artefacts's wetland.
The control of pretreatment pool 2 liquid level:
Pretreatment pool 2 controls the operational throughput of lift pump 10 by the high and low liquid level signal that liquid level detector 24 provides, pretreatment pool 2 is made to maintain within the scope of the liquid level of a setting, ensure that it enters the flow of overflow groove 21 sewage simultaneously, make sewage by overflow groove 21, then can flow under the influence of gravity into artificial swamp.
The control of pretreatment pool 2 temperature:
Winter or envrionment temperature low in, the corresponding step-down of sewage temperature, biological bacterium can not be in favourable working conditions, now need to carry out heat temperature raising to sewage, under can maintaining the good condition of 25-30 DEG C.Pretreatment pool 2 controls the internal circulating load of hot water circulating pump 20 by the temperature signal that thermometer provides, and what heat-exchanger rig 30 was continued with sewage carries out heat exchange, makes, in its temperature range maintaining a setting, to be conducive to the nitrification and denitrification effect of bacterium.
Artificial swamp 4 processes:
Sewage after pretreatment pool 2 processes flows under the influence of gravity into artificial swamp 4, and pretreatment pool 2 is circumscribed with pretreatment pool inlet channel 93, pretreatment pool outlet conduit 94, adopts upper entering and lower leaving water intake mode.Sewage is under the filteration of sand, stone, the effect of microorganism of breeding wherein and the adsorption of institute's planting plants root system, artificial swamp 4 completes COD (ChemicalOxygenDemand, chemical oxygen demand (COD)), the further removal of ammonia nitrogen and total phosphorus, make the final qualified discharge of water outlet.
In artificial swamp 4, the plant of plantation is mainly cyperus alternifolius and reed, and the clearance of two kind of plant to contained in sewage COD, ammonia nitrogen and total phosphorus is all very high, Be very effective.
Wetland plant fermentation vat 5---the process of sun power artificial swamp 4 stalk:
The plants such as the reed that sun power artificial swamp 4 kinds is planted and cyperus alternifolius, in sewage treatment process, absorb the nutrition such as the nitrogen phosphorus in moisture and waste water, are grown, need periodical reaping, to ensure continuity and the landscape need of plant-growth.General as solid waste refuse treatment after the plant harvesting of Traditional Man wetland.The plant of gathering in the present embodiment is put in wetland plant fermentation vat 5 and ferments, form biogas by fermentation and be supplied to the fuel of methane boiler 6 as heat hot water, reach minimizing and resource utilization, make biomass energy be converted into heat energy, the application of supply Sewage treatment systems.
Methane boiler 6 supplying hot water:
Biogas is delivered to methane boiler 6 as the hot water in fuel gas heat hot water boiler 62, and hot water is then as the sewage in heating medium heat pre-treatment pond 2.Owing to being that the heat energy be converted by straw in artificial swamp 4 does not need extra supplementing energy, save energy consumption.
The control of methane boiler 6 water temperature:
The aperture of the temperature signal Controlling solenoid valve 971 that methane boiler 6 is provided by thermometer 624, regulates the supply control combustion device 61 of biogas to heat, and the water temperature in hot water boiler 62 is maintained in the temperature range of a setting, and the present embodiment is 90 ± 5 DEG C.
Solar powered:
Sun power is collected by polycrystalline silicon solar plate 71, convert solar energy into electrical energy under the acting in conjunction of solar charging/discharging controller 73, store battery 74 and invertor 75, and the power-equipment electricity consumption of plenum system and robot control system(RCS) electricity consumption, in native system, main power consumption power-equipment is lift pump 10, gas blower 31 and hot water circulating pump 20.The combination of sun power and artificial swamp 4 is effectively achieved energy-saving consumption.
In sum, the artificial marsh sewage treatment system of the present embodiment is on the basis retaining Traditional Man wetland advantage, oxygen-increasing device 3 is provided with in pretreatment pool 2, when oxygen-increasing device 3 is opened, oxygenation state is in pretreatment pool 2, organism in sewage is hydrolyzed under the effect of aerobic bacteria, and form carbonic acid gas and water, ammonia nitrogen is then oxidized to nitrogen oxide.When oxygen-increasing device 3 is closed, pretreatment pool 2 is in anoxic condition, and organism is hydrolyzed under the effect of anaerobic bacterium, and macromole becomes small molecules, and the nitrogen oxide formed during aerobic treatment is reduced to nitrogen under anoxic conditions, and then is removed.
Gas blower 31 alternation of oxygen-increasing device 3, define the A/O system in biological treatment, organism in sewage, ammonia nitrogen, total nitrogen and total phosphorus can be degraded, run odorless, not easily block,, technique high to dirty beam thing removal efficiency simply, and alleviates the load of subsequent disposal, is beneficial to the process of subsequent artefacts's wetland 4.Meanwhile, gas blower 31, lift pump 10, hot water circulating pump 20 and Controlling System 8 adopt solar energy system as the energy, without the need to additional energy source as propulsion source, possess the advantages such as energy-saving and emission-reduction, cleaner production and low-carbon economy.
In order to clearly show environmental protection of the present utility model, energy-conservation, province consumes, the advantage of green ecological, sets forth below with the embody rule of the process of a municipal effluent to the present embodiment.Carrying out practically process is as follows:
Municipal effluent first delivers to grating tank 1, and the leaf, hair, foreign material etc. of more than 5mm in the filtration removal sewage of flase floor 1, the foreign material that flase floor 11 retains can periodic cleaning.Sewage after preliminary filtration is delivered to pretreatment pool 2 under the effect of lift pump 10, sewage has the hydraulic detention time of 9h at pretreatment pool 2, the intermittently used oxygen-increasing device 3 automatically controlled by PLC control system 8 is provided with in pretreatment pool 2, also half soft polypropylene bridging of bio-carrier is had, microorganism in pond forms the environment that anaerobic-aerobic replaces under interval oxygenation condition, thus sewage can carry out nitrification and denitrification reaction.
During gas blower 31 aeration, be in oxygenation state in pretreatment pool 2, organism is degraded under the effect of aerobic bacteria, forms carbonic acid gas and water; Ammonia nitrogen is then oxidized to nitrogen oxide.
When gas blower 31 does not work, be in anoxic condition in pretreatment pool 2, organism is hydrolyzed under the effect of anaerobic bacterium, and macromole becomes small molecules, and the nitrogen oxide formed during aerobic treatment is reduced to nitrogen under anoxic conditions, thus is removed.
The sewage gravity processed through pretreatment pool 2 flows into artificial swamp 4, the removal pollutent of the further degree of depth under the filteration of sandstone and the adsorption of the root system of plant such as reed, cyperus alternifolius, final qualified discharge.
The solar electric power supply system 7 configured in system, is mainly used in the power supply of system medium power equipment as lift pump 10, gas blower 31, hot water circulating pump 20 and PLC control system, and energy-saving is consumed.
The plant planted in artificial swamp is mainly reed and cyperus alternifolius, wastewater treatment efficiency is remarkable, and these plants are the harvesting of time autumn and winter substantially, when the lucky autumn and winter, temperature is lower, pretreatment pool 2 can not remain on bacterium preferably under treatment temp 25-30 degrees celsius, now the straw of harvesting is put into wetland plant fermentation vat 5 ferment produce biogas be then delivered to as the fuel heat hot water of methane boiler 6 heat-exchanger rig 30 being arranged at pretreatment pool 2, thus give the heating of the sewage in pretreatment pool, can be also that pretreatment pool 2 is incubated in winter.
Be below the water quality situation in embodiment before and after municipal sewage treatment:
| Pollutent title | BOD 5 | COD Cr | SS | NH 4 +-N | TP |
| Water inlet mean value (mg/l) | 180 | 350 | 200 | 30 | 4 |
| Water outlet mean value (mg/l) | 10 | 40 | 5 | 5 | 0.4 |
| Clearance | 94.4％ | 88.6％ | 97.5％ | 83.3％ | 90％ |
Sewage control standard:
Note: the outer numerical value of bracket is control criterion when being greater than 12 DEG C, in bracket, numerical value is the control criterion of water temperature when being less than 12 DEG C.Effluent quality is " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level B standard.
By above data as seen by after the artificial marsh sewage treatment system process of the present embodiment, the clearance of pollutent is up to 83% ~ 97%, effluent quality far away higher than " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level B standard, qualified discharge.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. an artificial marsh sewage treatment system, comprises the pretreatment pool and artificial swamp that are interconnected, plants and be implanted with plant in described artificial swamp; It is characterized in that, described artificial marsh sewage treatment system also comprises grating tank, to the oxygen-increasing device of the sewage oxygenation in described pretreatment pool, to provide the energy resource system of the energy and control the Controlling System that described oxygen-increasing device alternately switches between open and close state to described oxygen-increasing device; Be provided with some grizzly bars spaced apart in described grating tank, described oxygen-increasing device is electrically connected with described energy resource system, Controlling System.
2. artificial marsh sewage treatment system as claimed in claim 1, it is characterized in that, described artificial marsh sewage treatment system also comprises to the sewage heating installation of the sewage heating in described pretreatment pool, described sewage heating installation comprises wetland plant fermentation vat and methane boiler, the plant-filled gathered in described artificial swamp is in described wetland plant fermentation vat, and ferment in wetland plant fermentation vat, produce biogas, biogas in described wetland plant fermentation vat accesses in described methane boiler, for the water in heating biogas boiler by pipeline.
3. artificial marsh sewage treatment system as claimed in claim 2, it is characterized in that, described sewage heating installation also comprises hot water effluent's pipeline, hot water circulating pump, heat-exchanger rig and boiler blow-down water pipeline, and described heat-exchanger rig is arranged in described pretreatment pool; Described methane boiler, hot water effluent's pipeline, hot water circulating pump, heat-exchanger rig and boiler blow-down water pipeline are communicated with successively, form a closed loop heating system, the heat of himself is passed to the sewage in pretreatment pool by described heat-exchanger rig, and then heats or be incubated the sewage in pretreatment pool.
4. the artificial marsh sewage treatment system as described in claims 1 to 3 any one, it is characterized in that, described energy resource system comprises solar electric power supply system, and described solar electric power supply system comprises polycrystalline silicon solar plate, solar charging/discharging controller, store battery and the invertor for direct current being transferred to alternating-current; The input terminus of described solar charging/discharging controller is electrically connected with polycrystalline silicon solar plate, and the output terminal of described solar charging/discharging controller is electrically connected with described store battery, invertor; Described invertor is electrically connected with described oxygen-increasing device, Controlling System.
5. the artificial marsh sewage treatment system as described in claims 1 to 3 any one, is characterized in that, described pretreatment pool inside is provided with some bridging, carries microorganism in described some bridging.
6. artificial marsh sewage treatment system as claimed in claim 5, it is characterized in that, described pretreatment pool adopts underground type skeleton construction, described bridging is formed by half soft polypropylene material manufacture, described some bridging intervals are arranged, and the distance between adjacent two bridging is 100mm-200mm.
7. the artificial marsh sewage treatment system as described in claims 1 to 3 any one, it is characterized in that, described oxygen-increasing device comprises gas blower and is arranged at several aeration heads in pretreatment pool, several aeration heads described access the air of described gas blower ejection by pipeline, described Controlling System controls described gas blower and alternately switches between open and close state, and intermittently in described pretreatment pool, pass into air by described aeration head, make described pretreatment pool form the A/O system in carrying out a biological disposal upon.
8. the artificial marsh sewage treatment system as described in claims 1 to 3 any one, is characterized in that, the gap width between adjacent two described grizzly bars is 5mm-10mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314737A (en) * | 2015-12-03 | 2016-02-10 | 深圳盖雅环境科技有限公司 | Constructed wetland sewage treatment system and sewage purification method |
| CN106797906A (en) * | 2017-01-05 | 2017-06-06 | 南通大学 | A kind of circulation aquaculture system of utilization solar energy heat-storage |
| WO2019153519A1 (en) * | 2018-02-11 | 2019-08-15 | 浙江省环境保护科学设计研究院 | Intelligently controlled anti-blockage artificial wetland rain and sewage enhanced treatment system and method based on solar power |
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2015
- 2015-12-03 CN CN201520996420.XU patent/CN205170509U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314737A (en) * | 2015-12-03 | 2016-02-10 | 深圳盖雅环境科技有限公司 | Constructed wetland sewage treatment system and sewage purification method |
| CN106797906A (en) * | 2017-01-05 | 2017-06-06 | 南通大学 | A kind of circulation aquaculture system of utilization solar energy heat-storage |
| WO2019153519A1 (en) * | 2018-02-11 | 2019-08-15 | 浙江省环境保护科学设计研究院 | Intelligently controlled anti-blockage artificial wetland rain and sewage enhanced treatment system and method based on solar power |
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Effective date of registration: 20240206 Address after: 065000 Huaxin Road, Development Zone, Langfang City, Hebei Province Patentee after: LANGFANG GAIA ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Country or region after: China Address before: Room 303, Building Y1, Bantian Creative Park, No. 5 Bantian Yayuan Road, Longgang District, Shenzhen City, Guangdong Province, 518129 Patentee before: SHENZHEN GAIA ENVIRONMENTAL ENGINEERING Co.,Ltd. Country or region before: China |
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