CN103819056B - The recycling system that a kind of sewage is irrigated safely - Google Patents
The recycling system that a kind of sewage is irrigated safely Download PDFInfo
- Publication number
- CN103819056B CN103819056B CN201410077827.2A CN201410077827A CN103819056B CN 103819056 B CN103819056 B CN 103819056B CN 201410077827 A CN201410077827 A CN 201410077827A CN 103819056 B CN103819056 B CN 103819056B
- Authority
- CN
- China
- Prior art keywords
- sewage
- recycling system
- safely
- aerobic biofilter
- region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses the recycling system that a kind of sewage is irrigated safely, comprise anaerobic pond and short distance aerobic biofilter, also comprise pipe connecting, described anaerobic pond is divided into inhalant region, combined stuffing district and settling region successively, described short distance aerobic biofilter is provided with packing area, bearing area and exhalant region successively, wherein, the settling region of anaerobic pond is connected by pipe connecting with the packing area of aerobic biofilter.The recycling system that sanitary sewage of the present invention is irrigated safely, to retain nitrogen in sewage, phosphorus quantity realize inorganicly turning to target, improve the value that sewage recycling utilizes, achieve simultaneously and under less energy-consumption condition, use Organic substance in water concentration be reduced to below 50mg/L, improve the security of sewage irrigation, avoid traditional wastewater to irrigate the problem easily causing rotten of farm crop and the hardening soil.In addition, present system is conducive to according to ammonia nitrogen the feature that farm crop directly absorb, and shortens the process of aerobic biofilter, achieves energy-saving and cost-reducing.
Description
Technical field
The present invention relates to a kind of sewage recycling of irrigating for safety for domestic sewage in rural areas and utilize system, belong to water treatment and sewage recycling utilizes technical field.
Background technology
Current domestic domestic sewage in rural areas recycling idea is weak, and treatment technology mainly with for the purpose of every pollutent in removal sewage, does not consider the problem of the nutritive substance such as the nitrogen how retained in sewage, phosphorus greatly.Traditional A/O treatment system for the purpose of de-carbon and denitrogenation dephosphorizing, the anaerobic pond residence time is 14h, the volumetric loading of aerobic biofilter is 0.50kgCOD/(m3d), hydraulic load 4.0 m3/ (m2d), water outlet reaches country " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard, ammonia nitrogen concentration should be less than 5mg/L, phosphate concn should be less than 0.5mg/L, and COD concentration should be less than 50 mg/L.Current external many water treatment experts actively advocate the sewage disposal concept of " treatment in situ is reuse on the spot, realizes water balance and water cycle ".Domestic sewage in rural areas, from process to the transformation of resource utilization, is not only the inexorable trend of water technology development from now on, is also solve in-problem effective way in the sanitary sewage disposal of Rural Areas at Present.For being subject to the rural sewage treatment technology of extensive concern, technology maturation, the application technology as the second resource of domestic sewage in rural areas also needs to drop into more concern.The nitrogen contained in sanitary sewage, phosphorus are a kind of pollutents to water surrounding, but it is then necessary nutritive substance to agriculture production, it is a kind of resource of preciousness, therefore, it is possible to it effectively being utilized is the important channel realizing the ecological agriculture, therefore a kind of exploitation that can realize the recycling system that sewage that regenerated water source utilization and nitrogen phosphorus fully reclaims is irrigated safely is necessary.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is to provide a kind of recycling system that can realize sewage that regenerated water source utilization and nitrogen phosphorus fully reclaims and irrigate safely, native system is simple and reasonable, laid down cost is low, running cost is low, is convenient to maintenance management.
Summary of the invention: in order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
The recycling system that a kind of sewage is irrigated safely, comprise anaerobic pond and aerobic biofilter, also comprise pipe connecting, described anaerobic pond is divided into inhalant region, combined stuffing district and settling region successively, described aerobic biofilter is provided with packing area, bearing area and exhalant region successively, wherein, the settling region of anaerobic pond is connected by pipe connecting with the packing area of aerobic biofilter.
Wherein, described combined stuffing district accounts for 80% of anaerobic pond volume, and described packing area accounts for 75% of aerobic biofilter volume.
Wherein, described combined stuffing district filler is Ф 150mm × 80mm combined stuffing, and described packing area filler is the haydite of particle diameter 3-6mm.
Wherein, described pipe connecting is provided with lift pump.
Wherein, top, described settling region is provided with sealing-ring and cover plate successively.
Wherein, shore pipe is provided with in described inhalant region.
Wherein, the sidewall of described packing area is provided with vent-pipe.
Wherein, perforation supporting plate is provided with between described bearing area and exhalant region.
Wherein, the sidewall of described exhalant region is provided with ventilation hole.
Beneficial effect: compared to prior art, sewage of the present invention is irrigated safely recycling system and is achieved still have required biological treatment effect under less energy-consumption condition, the inorganization and organics removal by organonitrogen, phosphorus, in addition, present system does not establish return flow line, just can ensure the dissolved oxygen demand of aerobic biofilter, thus reach energy-saving and cost-reducing effect under natural ventilation condition, finally, present system solves rotten of the farm crop that sewage irrigation in the past causes, the problems such as soil compaction, maximize the nitrogen remaining in sanitary sewage and be easy to farm crop and utilize, P form and quantity, achieve sewage recycling and utilize the abundant recovery with nitrogen phosphorus, therefore the recycling system that sewage of the present invention is irrigated safely has broad application prospects, compared with the technical process of the country sewage dephosphorization denitrogenation generally adopted now, present system eliminates follow-up nitration reaction, anti-nitration reaction, system flow shortens, dissolved oxygen demand reduces, do not need extra aeration, reduce energy consumption.
Accompanying drawing explanation
Fig. 1 is the horizontal section schematic diagram of the recycling system that sewage of the present invention is irrigated safely;
Fig. 2 is the longitudinal profile schematic diagram of the recycling system that sewage of the present invention is irrigated safely.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
The combined stuffing adopted in present system is specification Ф 150mm × 80mm filler, this combined stuffing axial cord is plastic ties, surrounding is that hydroformylation fiber or POLYESTER YARNS are evenly pressed on the large plastic hoop of two circle, the length of combined stuffing filler bundle is 0.4m, the number of filler bundle is 8, and filler bundle is evenly suspended in combined stuffing district; Packing area filler is the haydite of particle diameter 3-6mm.
As shown in Figure 1 and 2, the recycling system that sewage of the present invention is irrigated safely, comprise anaerobic pond 1 and aerobic biofilter 2, also comprise pipe connecting 3, described anaerobic pond 1 is divided into inhalant region 4, combined stuffing district 5 and settling region 6 successively, aerobic biofilter 2 is provided with packing area 7, bearing area 8 and exhalant region 9 successively, and wherein, the settling region 6 of anaerobic pond 1 is connected by pipe connecting 3 with the packing area 7 of aerobic biofilter 2.Wherein, combined stuffing district 5 filler specification is Ф 150mm × 80mm filler, and axial cord is plastic ties, and surrounding has hydroformylation fiber or POLYESTER YARNS to be evenly pressed on the large plastic hoop of two circle; Combined stuffing district 5 accounts for 80% of anaerobic pond 1 volume, and packing area 7 is ceramics filling, and packing area 7 accounts for 75% of aerobic biofilter 2 volume; Pipe connecting 3 is provided with lift pump 10, the water outlet of settling region 6 enters in aerobic biofilter 2 by the lift pump 10 on pipe connecting 3, a water distributor 11 can also be established in that end that pipe connecting 3 is connected with packing area 7, and the sewage in pipe connecting 3 is become the top layer that fine liquid particles is sprayed at packing area 7 by water distributor 11.Top, settling region 6 is provided with sealing-ring 12 and cover plate 13 successively, is provided with shore pipe 14 in inhalant region 4, and the sidewall of packing area 7 is provided with vent-pipe 15, and be provided with perforation supporting plate 16 between bearing area 8 and exhalant region 9, the sidewall of exhalant region 9 is provided with ventilation hole 17.
Sewage enters the anaerobic pond 1 with combined stuffing district 5 from inhalant region 4, after hydraulic retention 3 h-4h, by part organonitrogen in sewage, phosphorus is inorganization, reduce organic loading, sewage then enters settling region 6, the packing area 7 of aerobic biofilter 2 is entered by pipe connecting 3, sewage in pipe connecting 3 can form by water distributor 11 top layer that fine liquid particles is sprayed at packing area 7, under natural aerobic condition, by increasing the biochemical reaction time in hydraulic load adjustment aerobic biofilter 2, reaction is rested on carbonization, the ammonification stage, organonitrogen is converted into ammonia nitrogen, organophosphorus is converted into phosphoric acid salt, organic concentration is reduced simultaneously, sewage flows through bearing area 8 after packing area 7 is reacted, enter exhalant region 9, enter farmland by the rising pipe of exhalant region 9 to irrigate.Pilot plant test shows that the water outlet ammonia nitrogen concentration of the recycling system adopting sewage of the present invention to irrigate safely is 20-30mg/L, and phosphate concn is 4-6mg/L, COD concentration is below 50mg/L.
When the best volumetric loading of aerobic biofilter 2 is 0.80kgCOD/(m3d), when hydraulic load is 5.64 m3/ (m2d), the treatment effect of sewage is best, namely the organic concentration of water outlet is reduced to below 50mg/L, ammonia nitrogen concentration is 20-30mg/L, and phosphate concn is 4-6 mg/L.
The present invention is by controlling the height of hydraulic load, packing layer, the biochemical reaction of aerobic biofilter is made to control in carbonization, ammonification stage, and eliminate denitrification process, realization response process short distance, reduce the demand to dissolved oxygen, thus reduction energy consumption, and use the degree that Organic substance in water concentration is reduced to safety irrigation, improve the ammonia-nitrogen content being conducive to farm crop and directly absorbing simultaneously.
The sewage of the present invention recycling system of irrigating safely is maximized to be remained in domestic sewage in rural areas and is easy to forms of nitrogen and phosphorus that farm crop utilize and quantity, solve and directly use sewage irrigation and the problem such as rotten of farm crop, soil compaction that causes, by the nitrogen in sewage, phosphorus safe reuse in field irrigation, achieve the recycling of nitrogen phosphorus in domestic sewage in rural areas.
Above-mentioned embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not limited by the examples; other are any do not deviate from spirit of the present invention and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. the sewage recycling system of irrigating safely, it is characterized in that: comprise anaerobic pond and aerobic biofilter, also comprise pipe connecting, described anaerobic pond is divided into inhalant region successively, combined stuffing district and settling region, described aerobic biofilter is provided with packing area successively, bearing area and exhalant region, wherein, the settling region of anaerobic pond is connected by pipe connecting with the packing area of aerobic biofilter, described combined stuffing district filler is Ф 150mm × 80mm combined stuffing, described packing area filler is the haydite of particle diameter 3-6mm, the volumetric loading of described aerobic biofilter is 0.80kgCOD/ (m
3d), hydraulic load is 5.64m
3/ (m
2d).
2. sewage according to claim 1 irrigates recycling system safely, it is characterized in that: described combined stuffing district accounts for 80% of anaerobic pond volume, and described packing area accounts for 75% of aerobic biofilter volume.
3. sewage according to claim 1 irrigates recycling system safely, it is characterized in that: described pipe connecting is provided with lift pump.
4. sewage according to claim 1 irrigates recycling system safely, it is characterized in that: top, described settling region is provided with sealing-ring and cover plate successively.
5. sewage according to claim 1 irrigates recycling system safely, it is characterized in that: be provided with shore pipe in described inhalant region.
6. sewage according to claim 1 irrigates recycling system safely, it is characterized in that: the sidewall of described packing area is provided with vent-pipe.
7. sewage according to claim 1 irrigates recycling system safely, it is characterized in that: be provided with perforation supporting plate between described bearing area and exhalant region.
8. sewage according to claim 1 irrigates recycling system safely, it is characterized in that: the sidewall of described exhalant region is provided with ventilation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077827.2A CN103819056B (en) | 2014-03-05 | 2014-03-05 | The recycling system that a kind of sewage is irrigated safely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077827.2A CN103819056B (en) | 2014-03-05 | 2014-03-05 | The recycling system that a kind of sewage is irrigated safely |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103819056A CN103819056A (en) | 2014-05-28 |
| CN103819056B true CN103819056B (en) | 2015-09-16 |
Family
ID=50754396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410077827.2A Active CN103819056B (en) | 2014-03-05 | 2014-03-05 | The recycling system that a kind of sewage is irrigated safely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103819056B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496027A (en) * | 2014-12-24 | 2015-04-08 | 东南大学 | Short-range nitrogen-phosphorus inorganic reactor for treating rural domestic sewage |
| CN104829057B (en) * | 2015-05-05 | 2017-03-08 | 南京大学 | A kind of vertical bacteria filter system for rural scattered domestic sewage process |
| CN108328882B (en) * | 2018-04-17 | 2024-06-18 | 金华职业技术学院 | Device and method for recycling rural domestic sewage |
| CN109052630A (en) * | 2018-08-31 | 2018-12-21 | 中国环境科学研究院 | It is a kind of to solve the problems, such as that sewage agriculture fills seasonal sewage-treatment plant |
| CN115448457B (en) * | 2022-08-29 | 2023-09-08 | 中国科学院生态环境研究中心 | Rural domestic sewage treatment system based on farmland irrigation water quality requirement |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382647A (en) * | 2002-05-10 | 2002-12-04 | 清华大学 | Equipment for denitrifying and dephosphating sewage in integrated aerobic/anaerobic biologic fiter pool |
| CN102050546A (en) * | 2009-11-04 | 2011-05-11 | 大亚有限公司 | Method and device for comprehensive treatment of domestic sewage and organic waste |
-
2014
- 2014-03-05 CN CN201410077827.2A patent/CN103819056B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382647A (en) * | 2002-05-10 | 2002-12-04 | 清华大学 | Equipment for denitrifying and dephosphating sewage in integrated aerobic/anaerobic biologic fiter pool |
| CN102050546A (en) * | 2009-11-04 | 2011-05-11 | 大亚有限公司 | Method and device for comprehensive treatment of domestic sewage and organic waste |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103819056A (en) | 2014-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103819056B (en) | The recycling system that a kind of sewage is irrigated safely | |
| CN102923861B (en) | Constructed wetland for treating sewage with low carbon nitrogen ratio by utilizing ores | |
| CN110294531A (en) | A kind of water treatment system and method based on ecological core wetland | |
| CN102557330A (en) | An/O type composite artificial wetland system for enhanced treatment of low-C/N ratio wastewater | |
| CN105645589B (en) | Deep-bed constructed wetland reactor capable of converting operation modes | |
| CN103030247B (en) | Method for treating sewage by organism-soil infiltration and device for realizing method | |
| CN103359825A (en) | Method for treating pig farm wastewater by using straw | |
| CN201850198U (en) | Efficient denitrifying wetland system for advanced treatment of tail water of sewerage treatment plant | |
| CN105461165A (en) | Rural domestic sewage combined type ecological treatment system and treatment method, and application thereof | |
| CN103183445A (en) | Method and system for advanced treatment of rural domestic sewage | |
| CN103819052B (en) | A kind of animal farm wastewater Zero discharging system | |
| CN103819057B (en) | The method of resource that a kind of sewage is irrigated safely | |
| CN101585647A (en) | Capillary tube compound sewage treatment device | |
| CN102964033B (en) | Covering layer for water quality purification of leachate and enhanced oxidation of methane in landfill and treatment method of leachate | |
| CN103304029A (en) | Artificial soil infiltration system for treating rural distributed sewage | |
| CN105366802A (en) | Eco-biofilter apparatus and method for treating sewage by eco-biofilter apparatus | |
| CN111003808B (en) | Mn-C enhanced constructed wetland denitrification system and denitrification method | |
| CN2928836Y (en) | Plant bed type waste water resource treating system | |
| CN204661500U (en) | Device for treating rural domestic sewage by three-stage circulation type artificial wetland | |
| CN105502801A (en) | Seasonal frozen region expressway service area combined sewage treatment system device and method thereof | |
| CN205398386U (en) | Sewage treatment system based on solar energy and wind energy | |
| CN204803189U (en) | Rural sewage treatment plant based on biological carrier piece water planting groove | |
| CN114149083A (en) | Plant carbon source based novel composite artificial wetland system and application thereof | |
| CN108793610B (en) | Gardens sewage treatment system of environmental protection | |
| CN104496027A (en) | Short-range nitrogen-phosphorus inorganic reactor for treating rural domestic sewage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |