CN102001743A - Sewage aerobic land treatment system - Google Patents
Sewage aerobic land treatment system Download PDFInfo
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- CN102001743A CN102001743A CN2010102972156A CN201010297215A CN102001743A CN 102001743 A CN102001743 A CN 102001743A CN 2010102972156 A CN2010102972156 A CN 2010102972156A CN 201010297215 A CN201010297215 A CN 201010297215A CN 102001743 A CN102001743 A CN 102001743A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- 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
- Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
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Abstract
The invention discloses a sewage aerobic land treatment system. The system comprises a groove body formed by digging under the ground, wherein impermeable membranes are laid at the periphery and at the bottom of the groove body; and a sand layer, a water distribution layer, a packing and water collecting layer and a soil layer are formed in turn from bottom to top. The sewage aerobic land treatment system is characterized by also comprising a blast aeration system consisting of a blast blower, an air diffusion device and a connecting pipeline, wherein the air diffusion device is positioned below the water surface of the land treatment system and connected with the blast blower through a pipeline; pretreated sewage enters the land treatment system; and air is pressurized by the blast blower and diffused into sewage of the system in the form of small air bubbles through the air diffusion device. Therefore, the aims of charging oxygen into the sewage and stirring are fulfilled, good reoxygenation effect, high mass transfer efficiency, quick bio-membrane updating and high treatment efficiency are achieved, and the problem of blockage of the land treatment system in the operating process is solved effectively.
Description
Technical field
The present invention relates to the aerobic land treatment system that a kind of artificial aeration of utilization disposes of sewage, belong to the ecological wastewater processing technical field.
Background technology
Because the rural area does not have rational collecting dung measure, pollution substances such as the ight soil that relevant sanitary sewage and livestock and poultry breeding industry produced, waste water, animal blood, eggshell can not get effective processing.In addition, some samll cities and towns, park, seashore tourism ground, residential area newly developed, hotel etc. are not owing to possess the condition that sewage works is set, making that these sewage 90% or more of area are unprocessed directly is discharged near ocean, river, the lake, water source and environment have been polluted, cause N, P in the water body to exceed standard, eutrophication is serious, even the water body blackening.
And traditional urban sewage treatment process because investment is huge, operational management is complicated, higher to technical requirements, a little less than the economic base relative thin, the relatively low villages and small towns of state of the art are difficult to carry out.Soil treatment technology (technologies such as subsurface infiltration, diafiltration fast, slow rate, artificial swamp) is owing to can remove BOD effectively
5, COD, have the denitrogenation dephosphorizing ability again, and cost is low, operational management is simple, is progressively applied.
But traditional polluted water land treatment system weak point is: floor space is relatively large, be subjected to weather effect big, winter operation weak effect, summer grow mosquitos and flies, certain smell is arranged, and operation along with treatment system, sewage treating efficiency reduces gradually after several years, system easily take place to stop up and adsorb saturated, have only anaerobism section, poor denitrification and dephosphorization effect etc.
Application number is 200820022241.6 Chinese patent: upward flow enhanced sewage land treatment system, the ecological sewage treatment system that utilizes soil-microorganism-biologic packing material-plant to form, form in the below ground excavation, be covered with anti seepage membrane with the bottom all around, be followed successively by from bottom to top: water distribution layer, filler and catchment layer and pedosphere.Filler and catchment and separate with grid between layer and the pedosphere is distributed with water distributor in the water distribution layer, include header in filler and the layer that catchments, and has solved that traditional wastewater land treatment system floor space is big, winter operation weak effect, summer grow problems such as mosquitos and flies.
Application number is 200410017544.5 Chinese patent: the unpowered ventilation reoxygenation system of sewage disposal, arrange the perforation ventpipe in the soil filtration layer between polluted water land treatment unit water distributor, header, perforation ventpipe appearance coated high molecular hydrophobicity air-permeable envelope, form the ventpipe of permeable watertight, the airway that its two ends connect links to each other with the exhaust fan on the face of land respectively and directly communicates with atmosphere.System adopts the wind energy exhaust fan to the treatment system natural ventilation, and consumed power has not solved the oxygen supply problem, but has following defective: 1, adopt natural ventilation, can not adjust aeration rate according to influent quality, the water yield; 2, the high molecular hydrophobic air-permeable envelope damages the back and changes difficulty, and cost is higher; 3, adopt natural ventilation, blast is less, and air is relatively low to the mass-transfer efficiency of soil, and the reoxygenation effect is relatively poor.
Application number is 200820080804.7 Chinese patent: the artificial land system reoxygenation of sewage layer structure, its reoxygenation layer is arranged between the anaerobism groove below and aerobic layer of ecological packing artificial land treatment system, separate with nylon wire between reoxygenation layer and other working linings, reoxygenation layer configuration porous material, its porosity is 40 ~ 50%, one level ventilation pipe is set in the middle of the reoxygenation layer, and level ventilation pipe two ends link to each other with vertical aeration, the punching around it in a spiral manner of level ventilation pipe.This mode adopts the air reoxygenation, with application number be that 200410017544.5 Chinese patent exists same defective: the pressure of air is less, and air is relatively low to the mass-transfer efficiency of soil, and the reoxygenation effect is relatively poor, wayward operation condition, the denitrogenation dephosphorizing effect is relatively poor.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of sewage aerobic land treatment system, by artificial blast aeration, improve the transfer efficiency and the reoxygenation effect of air, the reinforced soil microorganism is to the degraded purification function of pollutent in the sewage, thereby realize the function of land treatment system denitrogenation dephosphorizing, improve effluent quality.
Technical solution of the present invention is as follows: comprise that one excavates the cell body form at below ground, be covered with anti seepage membrane with the bottom all around, be followed successively by from bottom to top: layer of sand, water distribution layer, filler and layer and the pedosphere of catchmenting, filler and catchment the layer and pedosphere between separate with grid, be distributed with water distributor in the water distribution layer, include header in the filler and the layer that catchments, a plurality of escape pipes, described escape pipe is by pedosphere and elevate above the soil above, water inlet pipe, the back flushing water inlet pipe links to each other with water distributor respectively, water shoot, the back flushing water shoot links to each other with header respectively, it is characterized in that described sewage aerobic land treatment system also comprises by gas blower, the blast aeration system that air-diffuser and connecting tube are formed, air-diffuser are positioned at below the land treatment system water surface and by pipeline and link to each other with gas blower; Pretreated sewage enters land treatment system, air is diffused in the sewage of system by the form of air-diffuser with small bubbles after the gas blower pressurization, reach the purpose of oxygenation and stirring in sewage, reoxygenation is effective, the mass-transfer efficiency height, microbial film upgrades fast, the processing efficiency height, and effectively alleviated blocking problem in the land treatment system operational process.
Described air-diffuser can adopt aeration tube, diffuser plate or other air diffuser forms of tube wall perforate.
When described sewage aerobic land treatment system is moved, slowly spread by the water distributor of water inlet pipe in being embedded in water distribution layer through pretreated sewage to the filler and the layer that catchments, air is diffused in the sewage of system by the form of air-diffuser with small bubbles after the gas blower pressurization, reach the purpose of oxygenation and stirring in sewage, under the acting in conjunction of the holding back of biologic packing material inter-granular porosity, filtering and microorganism, pollutants in sewage matter obtains removing.Finally, the water after the processing comes together in the header by the perforate on the header, discharges land treatment system through water shoot.
In a single day stop up in the described sewage aerobic land treatment system operational process, gas blower can provide air to land treatment system by air-diffuser, carry out gas-water backwashing, the back flushing water outlet is collected by the back flushing water shoot by header and is discharged land treatment system.
The air that air-diffuser bloats in the described sewage aerobic land treatment system operational process and because the gas that microorganism metabolism produces is collected the discharge system through filler and the escape pipe in the layer that catchments, this escape pipe be positioned at filler with catchment layer top near pedosphere, pass pedosphere and elevate above the soil above, gas directly be discharged into atmosphere or collect after focus on.
The present invention has the following advantages:
1, compares with the traditional wastewater land treatment system, increased blast aeration system, air is diffused in the sewage of system by the form of air-diffuser with small bubbles after the gas blower compression, reach the purpose of oxygenation and stirring, transfer of air efficient height, reoxygenation is effective, and the microbial film renewal speed is fast, realize the function of land treatment system removal ammonia nitrogen, improved effluent quality; The stirring action of small bubbles can effectively prevent water distribution layer, filler and the layer that catchments stops up, and has alleviated traditional wastewater land treatment system blocking problem;
2, compare with the traditional wastewater land treatment system,, form aerobic land treatment system, effectively alleviated the stink that system gives vent to anger owing to increased blast aeration system;
3, compare with the traditional wastewater land treatment system, owing to increase blast aeration system, in a single day stop up in the land treatment system operational process, gas blower can provide air to land treatment system by air-diffuser, carry out gas-water backwashing, improve backwash effect, saved washing water quantity;
4, compare with natural ventilation reoxygenation system, the mode that adopts artificial blast aeration is to the land treatment system watercourse aeration, reoxygenation intensity, time be not subjected to external environment influence, can adjust aeration rate, aeration time, the aeration area of land treatment system according to influent quality, the water yield etc., treatment effect is stable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a sectional schematic diagram of the present invention.
Wherein, 1, header; 2, aeration tube; 3, water distributor; 4, anti seepage membrane; 5, layer of sand; 6, water distribution layer; 7, the filler and the layer that catchments; 8, pedosphere; 9, escape pipe; 10, back flushing water inlet pipe; 11, back flushing water shoot; 12, gas blower; 13, water inlet pipe; 14, water shoot.
Embodiment
Further specify the present invention below in conjunction with accompanying drawing and by specific embodiment.
As depicted in figs. 1 and 2, the present invention includes the cell body of a trapezoidal cross-section, form, be covered with anti seepage membrane 4 with the bottom all around in the below ground excavation.Wherein be filled with three parts, be followed successively by layer of sand 5 from bottom to top, water distribution layer 6, filler and catchment layer 7, pedosphere 8, and be layed in water distributor 3, aeration tube 2 and the filler in the water distribution layer 5 and the header 1, the escape pipe 9 that catchment in layers 7.Have a plurality of holes on the tube wall of water distributor 3 and header 1.Wherein, water distributor 3 covers with cobble above near the bottom, and header 1 is at filler and close pedosphere 8 places, the top of the layer 7 that catchments.Aeration tube 2 is laid in the water distribution layer according to sewage disposal design (aperture, quantity etc.) perforate on pipeline, wherein end sealing, and the other end is connected with gas blower.Water inlet pipe 13, back flushing water inlet pipe 10 link to each other with water distributor 3 respectively, and water shoot 14, back flushing water shoot 11 link to each other with header 1 respectively.Biologic packing material and catchment the layer 7 and pedosphere 8 between separate with grid.Anti seepage membrane 4 is positioned on the bottom and hypotenuse of design section, and main effect is to prevent sewage pollution underground water.
Enter land treatment system through pretreated sewage by the perforation water distributor of water inlet pipe 13 through being embedded in water distribution layer 6, air aeration tube 2 by being embedded in water distribution layer 6 after gas blower 12 pressurization is diffused in the sewage of land treatment system with the form of small bubbles, reach the purpose of oxygenation and stirring, sewage flow through successively from bottom to top water distribution layer 6, filler and catchment the layer (cinder, perlite, rubble, a building waste etc.) 5.After organic pollution materials entered land treatment system, at first filtration, the adsorption by the intergranular hole of biologic packing material was retained down.The microorganism of a great variety, enormous amount that surviving in the biologic packing material layer, they have powerful degraded and conversion capability to the organic solid in the sewage and dissolved organic matter, nitrogen, phosphorus etc.Residue and inert substance after biological decomposition, the conversion are stayed in the soil, become the part of parent soil material.By aeration time, aeration rate, the aeration area of control land treatment system, denitrifying bacteria and remove phosphorus bacteria and under aerobic-anaerobism alternative environment, finish removal to the nitrogen phosphorus compound.Finally, the water after the processing comes together in the header 1 by the perforate on the header and discharges land treatment system through water shoot 14.Planting on the land treatment system top pedosphere 8 has vegetation, has improved the utilization ratio in soil, prevents that stink from distributing, the effect of reach insulation simultaneously, beautifying the environment.
Land treatment system in the operational process is in case stop up, can carry out back flushing by back flushing water inlet pipe 10, back flushing water shoot 11 pairs of water distribution layer, fillers and the layer that catchments, in the backwash process, gas blower 12 can provide air to land treatment system by aeration tube 2, land treatment system is carried out gas-water backwashing, improve backwash effect, save the back flushing water yield, solved water distribution layer, filler and layer blocking problem of catchmenting.Simultaneously water distributor 3 and header 1 surface are washed, efficiently solve the traditional technology long-time running and easily produce blocking problem, the back flushing water outlet is collected through washback drainpipe 11 by header 1 and is discharged land treatment system.
In an example of the present invention, antiseepage thickness 1.2mm, water distribution bed thickness 200mm, the virtual height of rubble filler is 650mm, covers the thick clay of 270mm above, plays insulation and prevents the effect that stink distributes.Water distributor, header, aeration tube all adopt perforated pipe, and aperture becomes 15 ° with vertical direction, and two rows are oblique down.Wherein water distributor, aeration tube are arranged in water distribution layer, and header and a plurality of escape pipe are between soil and packing layer.By detecting Inlet and outlet water water quality, system is to COD, BOD
5Clearance reach 80% respectively, more than 85%, total phosphorus, ammonia-N removal rate reached 40 ~ 50%, 30 ~ 40% respectively.
Claims (5)
1. sewage aerobic land treatment system, comprise that one excavates the cell body form at below ground, be covered with anti seepage membrane with the bottom all around, be followed successively by from bottom to top: layer of sand, water distribution layer, the filler and the layer that catchments, pedosphere, filler and catchment the layer and pedosphere between separate with grid, be distributed with water distributor in the water distribution layer, include header in the filler and the layer that catchments, a plurality of escape pipes, described escape pipe is by pedosphere and elevate above the soil above, water inlet pipe, the back flushing water inlet pipe links to each other with water distributor respectively, water shoot, the back flushing water shoot links to each other with header respectively, it is characterized in that described sewage aerobic land treatment system also comprises by gas blower, the blast aeration system that air-diffuser and connecting tube are formed, described air-diffuser are positioned at below the land treatment system water surface and by pipeline and link to each other with gas blower; The air mixed that diffuses out with the form of small bubbles in water distribution layer and air-diffuser by water distributor through pretreated sewage, slowly infiltration is diffused in filler and the layer that catchments, and finally comes together in the header, discharges land treatment system by water shoot.
2. sewage aerobic land treatment system according to claim 1 is characterized in that having a plurality of holes on the tube wall of described water distributor, header.
3. sewage aerobic land treatment system according to claim 1 is characterized in that described air-diffuser adopts the aeration tube or the diffuser plate of tube wall perforate.
4. sewage aerobic land treatment system according to claim 3 is characterized in that described aeration tube installation direction is parallel with water distributor, wherein end sealing, and the other end is connected with gas blower.
5. sewage aerobic land treatment system according to claim 3, the aperture that it is characterized in that perforate on the described aeration tube down.
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| CN2010102972156A CN102001743B (en) | 2010-09-30 | 2010-09-30 | Sewage aerobic land treatment system |
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| CN2010102972156A CN102001743B (en) | 2010-09-30 | 2010-09-30 | Sewage aerobic land treatment system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730915A (en) * | 2012-07-13 | 2012-10-17 | 中科同创（厦门）环境科技有限公司 | Dispersive sewage multilayer soil ecological treatment device and method |
| CN103159317A (en) * | 2011-12-12 | 2013-06-19 | 同济大学 | Artificial-aeration-reinforced Land percolation water treatment device |
| CN103449665A (en) * | 2013-08-16 | 2013-12-18 | 青岛理工新环境技术开发有限公司 | Land biological precipitation and filtering system for muddy water separation of sewage |
| CN105293711A (en) * | 2015-11-25 | 2016-02-03 | 常州大学 | Construction method of immersed vertical flow artificial wetland for digesting tail water from urban sewage plant |
| CN108265782A (en) * | 2018-03-14 | 2018-07-10 | 温州大学苍南研究院 | A kind of rain sewage-treatment plant for being used to build building |
| CN108640415A (en) * | 2018-04-28 | 2018-10-12 | 青岛理工大学 | Efficient backwashing artificial ecological sewage land treatment system |
| CN108911015A (en) * | 2018-09-14 | 2018-11-30 | 江苏中车环保设备有限公司 | A kind of adsorption and dephosphorization equipment and system suitable for rural domestic sewage treatment |
| CN108975636A (en) * | 2018-09-14 | 2018-12-11 | 江苏中车环保设备有限公司 | It is a kind of to propose marking device and system suitable for the processing of villages and small towns dispersant type domestic wastewater |
| CN109761377A (en) * | 2019-03-27 | 2019-05-17 | 北京工业大学 | A kind of back water well formula country sewage bleeds back processing device and method |
| CN110156177A (en) * | 2019-07-02 | 2019-08-23 | 青岛大学 | Intermittent vertical current constructed wetland denitrogenation imitative experimental appliance and experimental method |
| CN110330107A (en) * | 2019-07-17 | 2019-10-15 | 华东师范大学 | A kind of vertical back flush type artificial swamp and its operation method with control mosquito function |
| CN110734313A (en) * | 2019-10-30 | 2020-01-31 | 泸州市菜清果源农业产业技术研究有限公司 | intelligently controlled organic fertilizer fermentation system |
| CN110813475A (en) * | 2019-11-12 | 2020-02-21 | 甘肃昊宇环保科技有限公司 | Rural village and town sewage treatment device and use method thereof |
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| CN101333029A (en) * | 2008-03-28 | 2008-12-31 | 中国科学院南京地理与湖泊研究所 | Artificial oxygenation type composite underflow wet land sewage purification process |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159317A (en) * | 2011-12-12 | 2013-06-19 | 同济大学 | Artificial-aeration-reinforced Land percolation water treatment device |
| CN102730915B (en) * | 2012-07-13 | 2014-01-08 | 中科同创（厦门）环境科技有限公司 | Dispersive sewage multilayer soil ecological treatment device and method |
| CN102730915A (en) * | 2012-07-13 | 2012-10-17 | 中科同创（厦门）环境科技有限公司 | Dispersive sewage multilayer soil ecological treatment device and method |
| CN103449665A (en) * | 2013-08-16 | 2013-12-18 | 青岛理工新环境技术开发有限公司 | Land biological precipitation and filtering system for muddy water separation of sewage |
| CN103449665B (en) * | 2013-08-16 | 2015-10-21 | 青岛理工新环境技术开发有限公司 | A kind of polluted water land biogenic sediment filtering system for mud-water separation |
| CN105293711A (en) * | 2015-11-25 | 2016-02-03 | 常州大学 | Construction method of immersed vertical flow artificial wetland for digesting tail water from urban sewage plant |
| CN108265782A (en) * | 2018-03-14 | 2018-07-10 | 温州大学苍南研究院 | A kind of rain sewage-treatment plant for being used to build building |
| CN108265782B (en) * | 2018-03-14 | 2024-04-09 | 温州大学 | Rain sewage treatment device for building |
| CN108640415B (en) * | 2018-04-28 | 2024-04-05 | 青岛理工大学 | Efficient backwashing artificial ecological sewage land treatment system |
| CN108640415A (en) * | 2018-04-28 | 2018-10-12 | 青岛理工大学 | Efficient backwashing artificial ecological sewage land treatment system |
| CN108911015A (en) * | 2018-09-14 | 2018-11-30 | 江苏中车环保设备有限公司 | A kind of adsorption and dephosphorization equipment and system suitable for rural domestic sewage treatment |
| CN108975636A (en) * | 2018-09-14 | 2018-12-11 | 江苏中车环保设备有限公司 | It is a kind of to propose marking device and system suitable for the processing of villages and small towns dispersant type domestic wastewater |
| CN109761377A (en) * | 2019-03-27 | 2019-05-17 | 北京工业大学 | A kind of back water well formula country sewage bleeds back processing device and method |
| CN109761377B (en) * | 2019-03-27 | 2022-02-22 | 北京工业大学 | Backwater well type rural sewage back-osmosis treatment device and method |
| CN110156177B (en) * | 2019-07-02 | 2022-02-08 | 青岛大学 | Intermittent vertical flow artificial wetland denitrification simulation experiment device and experiment method |
| CN110156177A (en) * | 2019-07-02 | 2019-08-23 | 青岛大学 | Intermittent vertical current constructed wetland denitrogenation imitative experimental appliance and experimental method |
| CN110330107A (en) * | 2019-07-17 | 2019-10-15 | 华东师范大学 | A kind of vertical back flush type artificial swamp and its operation method with control mosquito function |
| CN110734313A (en) * | 2019-10-30 | 2020-01-31 | 泸州市菜清果源农业产业技术研究有限公司 | intelligently controlled organic fertilizer fermentation system |
| CN110813475A (en) * | 2019-11-12 | 2020-02-21 | 甘肃昊宇环保科技有限公司 | Rural village and town sewage treatment device and use method thereof |
| CN110813475B (en) * | 2019-11-12 | 2021-08-17 | 甘肃昊宇环保科技有限公司 | Rural village and town sewage treatment device and use method thereof |
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Denomination of invention: Sewage aerobic land treatment system Effective date of registration: 20140305 Granted publication date: 20120523 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: Qingdao Ligong New Environmental Technology Development Co., Ltd. Registration number: 2014990000134 |
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Date of cancellation: 20150312 Granted publication date: 20120523 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: Qingdao Ligong New Environmental Technology Development Co., Ltd. Registration number: 2014990000134 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |