CN103241843A - Thermal insulation biological medium oxidation treatment method for domestic sewage - Google Patents
Thermal insulation biological medium oxidation treatment method for domestic sewage Download PDFInfo
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- CN103241843A CN103241843A CN2013101985824A CN201310198582A CN103241843A CN 103241843 A CN103241843 A CN 103241843A CN 2013101985824 A CN2013101985824 A CN 2013101985824A CN 201310198582 A CN201310198582 A CN 201310198582A CN 103241843 A CN103241843 A CN 103241843A
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- sanitary sewage
- treatment method
- oxidation treatment
- insulation
- microbiological media
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- 239000010865 sewage Substances 0.000 title claims abstract description 69
- 230000003647 oxidation Effects 0.000 title claims abstract description 30
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000009413 insulation Methods 0.000 title claims abstract description 26
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 230000002906 microbiologic effect Effects 0.000 claims description 44
- 239000007800 oxidant agent Substances 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 13
- 239000002689 soil Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 230000003301 hydrolyzing effect Effects 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 239000012716 precipitator Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 244000005700 microbiome Species 0.000 abstract description 5
- 239000002352 surface water Substances 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 2
- 239000011574 phosphorus Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 241000193830 Bacillus <bacterium> Species 0.000 description 3
- 241000222122 Candida albicans Species 0.000 description 3
- 206010007134 Candida infections Diseases 0.000 description 3
- 241000228150 Penicillium chrysogenum Species 0.000 description 3
- 201000003984 candidiasis Diseases 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
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- Y02W10/12—
Landscapes
- Treatment Of Biological Wastes In General (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a thermal insulation biological medium oxidation treatment method for domestic sewage. The thermal insulation biological medium oxidation treatment method for domestic sewage comprises the following steps of: (1) removing solid impurities in the domestic sewage; (2) carrying out oxidation and nitrogen and phosphorus removal treatment on the domestic sewage treated by the step (1) by virtue of microorganism medium, so as to remove organic matters; and (3) feeding the domestic sewage treated by the step (2) into a denitrification tank added with a carbon source to be denitrified, wherein temperature of the microorganism medium in the step (2) is maintained to be 10-50 DEG C. The thermal insulation biological medium oxidation treatment method for the domestic sewage has the advantages that investment on treatment of the domestic sewage is small, operating cost is low, maintenance and management are simple, operation is stable, no secondary pollution is produced, the thermal insulation biological medium oxidation treatment method for the domestic sewage is not influenced by regions and seasons and effluent quality can meet water quality standard of landscape surface water.
Description
Technical field
The present invention relates to the sanitary sewage disposal technical field, particularly the insulation Biomedia oxidation treatment method of sanitary sewage.
Background technology
Show according to pertinent data, useless (dirt) water total emission volumn by the end of China every year in 2010 has reached 62,000,000,000 tons, most of unprocessed rivers and lakes that just directly enter wherein, there is nearly 1/4th lake to be subjected to pollution in various degree, there is nearly 60% city not have sewage work, the sanitary sewage of Rural areas is untreated just directly discharging basically, and domestic sewage in rural areas by using is administered the construction that has had influence on modern new rural area.China is large agricultural country, populous nation, the water resources critical shortage, and only 2200 cubic metres of water resources ownership per capitas are world occupancy volume per person's 1/4, and are listed in one of 13 poor-water countries.To the year two thousand thirty China's water resources ownership per capita will drop to 1700 to 1800 cubic metres from present 2200 cubic metres, water requirement can the development and use amount near water resources, water shortage problem will be more outstanding.
Present national rural area is annual to produce about 8,000,000,000 tons of sanitary sewage, and 90% village does not have discharge conduit and Sewage treatment systems.Undressed sanitary sewage discharges wantonly, severe contamination the ecotope in rural area, directly threaten the Economic development in the vast farmers masses' healthy and rural area.Undressed sanitary sewage flows automatically to physical features and is in the surface water bodies such as low-lying river, lake and pond all kinds of water sources of severe contamination.Simultaneously, sanitary sewage is the source of disease propagation diffusion, causes the generation of some areas transmissible disease, endemy and infecting both domestic animals and human disease and popular easily.Generally speaking, China's domestic sewage in rural areas by using have disperse wide, the source is many, it is fast to increase, complicated component, water quality and water yield variation feature greatly.
Relatively poor and the lower present situation of level of management in view of the Rural areas economic situation needs a kind of capital construction and running cost is low, manage the decentralized wastewater ecological treatment method simple, that treatment effect is good, Ecosystem Service is good.
Summary of the invention
The objective of the invention is to provide a kind of insulation Biomedia oxidation treatment method of sanitary sewage, can solve one or more in the above-mentioned prior art problem.
According to an aspect of the present invention, provide a kind of insulation Biomedia oxidation treatment method of sanitary sewage, comprised step: (1) removes the solid impurity in the sanitary sewage; (2) will carry out the processing of oxidation and dephosphorization denitrogenation by microbiological media through the sanitary sewage that handled step (1), remove organism; (3) will send into the denitrification pond that adds carbon source through the sanitary sewage that handled step (2) and carry out the denitrification processing.Remain between 10 ℃～50 ℃ in the temperature of step (2) with microbiological media.
The insulation Biomedia oxidation treatment method of sanitary sewage of the present invention is little to the processing investment of sanitary sewage, working cost is low, maintenance management is easy, stable, non-secondary pollution, be not subjected to area and seasonal effect, effluent quality can satisfy the water quality standard of view surface water.
In some embodiments, in step (2) temperature of microbiological media is remained on 15 ℃～40 ℃.Thus, microorganism can have active preferably, and is comparatively thorough to organic interception, absorption, decomposition and conversion in the sewage.
In some embodiments, in step (2) temperature of microbiological media is remained on 25 ℃～35 ℃.Thus, microorganism can have good active, and is very thorough to organic interception, absorption, decomposition and conversion in the sewage.
In some embodiments, the carbon in the carbon source is 5:1 with the content ratio of nitrogen.Adopt the carbon-nitrogen ratio of 5:1, better to the denitrification treatment effect of sewage.
In some embodiments, filter by grid or graticule mesh in step (1), and the precipitator method, remove the solid impurity in the sanitary sewage.Thus, have the effect that operation is simple, need not the manpower work.
In some embodiments, will send into the microbiological media oxidizer through the sanitary sewage that handled step (1) in step (2), carry out the processing of oxidation and dephosphorization denitrogenation by microbiological media, remove organism.Thus, can control sewage by the flow of microbiological media, the treatment of organic matters of organic effect in the sewage is removed in control.
In some embodiments, in step (2) the microbiological media oxidizer is placed below the frozen soil layer.Because the following temperature of frozen soil layer remains on more than 0 ℃ throughout the year, can save energy, and do not exhale an offensive odor.
In some embodiments, in step (2) microbiological media is carried out oxygen supply.Thus, can promote microbial growth.
In some embodiments, by lift pump the sanitary sewage in the hydrolyzing regulation pond is injected the microbiological media oxidizer, to the microbiological media oxygen supply, heat microbiological media oxidizer by air source heat pump by gas blower.Thus, can realize automatic sanitary sewage processing, reduce the cost of manpower work.
Description of drawings
Fig. 1 is the synoptic diagram of step (2) in the insulation Biomedia oxidation treatment method of sanitary sewage of one embodiment of the present invention.
Embodiment
The invention will be further described by the following examples, but protection domain is not subjected to the restriction of these embodiment.
Sanitary sewage is at first removed solid refuse foreign material such as plastics bag, cloth through grid or graticule mesh, enters the inorganics preliminary sedimentation tank then and leaves standstill (being the precipitator method), and the inorganics that some proportions such as sand are bigger, particulate matter can be deposited in the bottom of inorganics preliminary sedimentation tank.The water outlet of inorganics preliminary sedimentation tank enters hydrolyzing regulation pond, and hydrolyzing regulation pond is collected all kinds of sewage and made it abundant mixing, and stops 6-8 hour, guarantees stable effluent quality.At regular time and quantity sewage is sent into the processing of carrying out oxidation and dephosphorization denitrogenation the microbiological media oxidizer from hydrolyzing regulation pond by lift pump, the organism in the sewage has been adhered to filler interception, absorption, decomposition and the conversion of various microbiological medias such as genus bacillus, candidiasis and Penicillium notatum in a large number and has been removed in the microbiological media oxidizer.Enter the denitrification pond that adds carbon source again by the water outlet behind the microbiological media oxidizer and carry out the denitrification processing, the every index of final outflow water after denitrification is handled is all up to standard.
The water outlet of microbiological media oxidizer enters the denitrification pond, denitrification provides carbon source in the pond, and this carbon source mainly comes from raw waste water, and additional raw waste water accounts for the 1/6-1/4 of Total Water, wherein the carbon in the carbon source can be 6～4:1 with the content ratio of nitrogen, adopts the 5:1 effect relatively good.Indexs such as the total nitrogen total phosphorus of final outflow water all reach primary standard B standard among the GB18918-2002 (claiming " standard " in the table 1), and are as shown in table 1.The water outlet of denitrification pond is discharged after entering the under meter letdown tank.
For microbial growth, can carry out effective oxygen supply to the microbiological media filler at regular time and quantity by gas blower.
For guarantee in the winter time and situation that northern area temperature is lower under microorganism also can survive preferably, also specially be provided with heat-insulation system in present method, the temperature of microbiological media is remained between 10 ℃～50 ℃.First microbiological media insulation way is that the microbiological media oxidizer is imbedded below the frozen soil layer, and second microbiological media insulation way is to use air source heat pump efficiently, in time the microbiological media oxidizer is heated.
Fig. 1 has schematically shown the processing mode of the step (2) in the insulation Biomedia oxidation treatment method of a kind of sanitary sewage.
As shown in Figure 1, a degree of depth is set is 1.7 meters pond below frozen soil layer 2, add the filler that has been adhered to microbiological medias 3 such as genus bacillus, candidiasis, Penicillium notatum in a large number in the pond, become microbiological media oxidizer 4.With the clay compacting, above frozen soil layer 2, lay one deck artificial soil 1 around the body of pond, artificial soil 1 thick 0.8 meter.Water inlet pipe 5 is placed at 0.1 meter below frozen soil layer 2, started 20 minutes in per 3 hours by lift pump the sanitary sewage in the water quality regulation pond is sent into the processing of carrying out oxidation and dephosphorization denitrogenation in the microbiological media oxidizer 4 by water inlet pipe 5, the organism in the sewage has been adhered to the interception of microbiological medias such as genus bacillus, candidiasis, Penicillium notatum 3 fillers, absorption in a large number, decomposed and has been transformed and removed in microbiological media oxidizer 4.The every work of gas blower stopped 1 minute after 5 minutes, effectively microbiological media 3 fillers was carried out oxygen supply by inlet pipe 6.The lagging material that microbiological media oxidizer 4 periphery parcels one bed thickness is 10 centimetres, cold district or per 3 hours of winter once, by air source heat pump microbiological media oxidizer 3 was heated in each 40 minutes, and made temperature range control between 10 ℃～50 ℃, keep microbic activity.The water outlet of sanitary sewage after by microbiological media oxidizer 4 enters the denitrification pond by rising pipe 7 again, and final outflow water every index behind denitrification is all up to standard.
Can control the startup of lift pump, gas blower and air source heat pump and stop by control device, make the insulation Biomedia oxidation treatment method of sanitary sewage of the present invention realize unmanned and stably carry out the processing of sanitary sewage, save manpower labour cost.
Table 1 is the concrete parameter according to primary standard B standard among the definite influent quality parameter of the parameter of relevant environmental administration and sewage of the same type, the urban wastewater treatment firm pollutant emission standard GB18918-2002, and during differing temps between 10 ℃～50 ℃ of 27 microbiological medias, the embodiment of the water quality parameter of sanitary sewage after method of the present invention is handled, wherein the carbon in the carbon source is 5:1 with the content ratio of nitrogen.Show visible sanitary sewage water quality after treatment by this and meet or exceed primary standard B standard among the GB18918-2002 fully.
Above-described only is some embodiments of the present invention.For the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Table 1:
Illustrate: unit is mg/L (except PH, colourity, the colibacillus of excrement), and sewage drainage standard is one-level B standard.
Claims (10)
1. the insulation Biomedia oxidation treatment method of sanitary sewage comprises the steps:
(1) solid impurity in the removal sanitary sewage;
(2) will carry out the processing of oxidation and dephosphorization denitrogenation by microbiological media through the sanitary sewage that handled described step (1), remove organism;
(3) will send into the denitrification pond that adds carbon source through the sanitary sewage that handled described step (2) and carry out the denitrification processing;
Remain between 10 ℃～50 ℃ in the temperature of described step (2) with described microbiological media.
2. the insulation Biomedia oxidation treatment method of sanitary sewage according to claim 1 wherein remains on 15 ℃～40 ℃ in step (2) with the temperature of described microbiological media.
3. the insulation Biomedia oxidation treatment method of sanitary sewage according to claim 1 wherein remains on 25 ℃～35 ℃ in step (2) with the temperature of described microbiological media.
4. the insulation Biomedia oxidation treatment method of sanitary sewage according to claim 1, the carbon in the described carbon source and the content of nitrogen are than being 5:1.
5. the insulation Biomedia oxidation treatment method of sanitary sewage according to claim 1 wherein filters by grid or graticule mesh in step (1), and the precipitator method, removes the solid impurity in the sanitary sewage.
6. according to the insulation Biomedia oxidation treatment method of each described sanitary sewage of claim 1～5, wherein before described step (2), will place hydrolyzing regulation pond to stop 6～8 hours through the sanitary sewage that handled described step (1).
7. the insulation Biomedia oxidation treatment method of sanitary sewage according to claim 6, wherein will send into the microbiological media oxidizer through the sanitary sewage that handled step (1) in step (2), carry out the processing of oxidation and dephosphorization denitrogenation by microbiological media, remove organism.
8. the insulation Biomedia oxidation treatment method of sanitary sewage according to claim 7 wherein places described microbiological media oxidizer below the frozen soil layer in step (2).
9. the insulation Biomedia oxidation treatment method of sanitary sewage according to claim 8 wherein carries out oxygen supply in step (2) to described microbiological media.
10. the insulation Biomedia oxidation treatment method of sanitary sewage according to claim 9, by lift pump the sanitary sewage in the described hydrolyzing regulation pond is injected described microbiological media oxidizer, to described microbiological media oxygen supply, heat described microbiological media oxidizer by air source heat pump by gas blower.
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| CN201310198582.4A CN103241843B (en) | 2013-05-24 | 2013-05-24 | The Thermal insulation biological medium oxidation treatment method of sanitary sewage |
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| CN201310198582.4A CN103241843B (en) | 2013-05-24 | 2013-05-24 | The Thermal insulation biological medium oxidation treatment method of sanitary sewage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293719A (en) * | 2015-11-02 | 2016-02-03 | 安徽美自然环境科技有限公司 | Denitrification process in sewage treatment |
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|---|---|---|---|---|
| US5185080A (en) * | 1990-06-04 | 1993-02-09 | Gregory Boyle | Process for the on-site removal of nitrates from wastewater |
| CA2086700A1 (en) * | 1991-02-28 | 1994-07-06 | Gregory Boyle | Method and Device for Small System Wastewater Denitrification |
| CN1420848A (en) * | 1999-07-12 | 2003-05-28 | 克莱沃有限公司 | Method of purifying water, suitable bacteria for said method and use thereof |
| CN2913351Y (en) * | 2005-12-26 | 2007-06-20 | 陈勇 | Laminated push-flow type anaerobic filter |
| CN101259977A (en) * | 2007-12-28 | 2008-09-10 | 凌亮 | Method for removing total nitrogen by using microorganism |
| CN201581029U (en) * | 2009-09-27 | 2010-09-15 | 中国农业大学 | Rural sewage treatment plant for northern household |
-
2013
- 2013-05-24 CN CN201310198582.4A patent/CN103241843B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185080A (en) * | 1990-06-04 | 1993-02-09 | Gregory Boyle | Process for the on-site removal of nitrates from wastewater |
| CA2086700A1 (en) * | 1991-02-28 | 1994-07-06 | Gregory Boyle | Method and Device for Small System Wastewater Denitrification |
| CN1420848A (en) * | 1999-07-12 | 2003-05-28 | 克莱沃有限公司 | Method of purifying water, suitable bacteria for said method and use thereof |
| CN2913351Y (en) * | 2005-12-26 | 2007-06-20 | 陈勇 | Laminated push-flow type anaerobic filter |
| CN101259977A (en) * | 2007-12-28 | 2008-09-10 | 凌亮 | Method for removing total nitrogen by using microorganism |
| CN201581029U (en) * | 2009-09-27 | 2010-09-15 | 中国农业大学 | Rural sewage treatment plant for northern household |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105293719A (en) * | 2015-11-02 | 2016-02-03 | 安徽美自然环境科技有限公司 | Denitrification process in sewage treatment |
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Effective date of registration: 20151021 Address after: 237000 cross two road, Lu'an Economic Development Zone, Anhui, China Applicant after: ANHUI MEIZIRAN ENVIRONMENT TECHNOLOGY CO., LTD. Address before: 602, room 6, building 230088, Shushan new village, 246 West Changjiang Road, Shushan District, Anhui, Hefei Applicant before: Ge Anran |
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