CN101624231A - Method for improving sewage treatment speed in low temperature environment - Google Patents
Method for improving sewage treatment speed in low temperature environment Download PDFInfo
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- CN101624231A CN101624231A CN200910162088A CN200910162088A CN101624231A CN 101624231 A CN101624231 A CN 101624231A CN 200910162088 A CN200910162088 A CN 200910162088A CN 200910162088 A CN200910162088 A CN 200910162088A CN 101624231 A CN101624231 A CN 101624231A
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- material layer
- transparent material
- sewage treatment
- low temperature
- treatment speed
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- 239000010865 sewage Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000012780 transparent material Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims description 34
- 239000010902 straw Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000005273 aeration Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000011810 insulating material Substances 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 9
- 239000010802 sludge Substances 0.000 description 6
- 230000001580 bacterial effect Effects 0.000 description 4
- 238000005842 biochemical reaction Methods 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a method for improving the sewage treatment speed in a low temperature environment, which is characterized in that a biological reaction tank is arranged in a greenhouse which comprises a support frame, a transparent material layer and a heat insulating material layer, wherein the transparent material layer is covered on the support frame, and the heat insulating material layer is covered on the transparent material layer. The invention has the advantages that: 1, the cost is low and the investment is less, and the adopted materials has low price, are easily purchased from northern area, and one-time investment is less; 2, the maintenance cost is low, and after the frame of the greenhouse is constructed, plastic and mats are replaced for one time within 2 to 3 years according to service conditions; 3, the operation is simple and easy, and the indoor temperature can be timely adjusted according to an indoor thermometer and weather situation; and 4, the energy-saving effect is obvious, and main source of temperature rise comprises solar energy and heat energy generated by a blower of the biological reaction tank during the aeration.
Description
Technical field
The invention belongs to sewage disposal and purification of water quality field, be specifically related to a kind of method that improves sewage treatment speed in low temperature environment.
Background technology
In the sewage work of the northern area of China, because temperature is lower, particularly winter, low temperature becomes the important bottleneck that restriction improves sewage treating efficiency.And area northeastward, envrionment temperature is lower than 0 ℃ chronic in 1 year, and the sewage work that has had a strong impact on this area normally moves, and makes a lot of technologies can not give full play to himself characteristics and advantage.For addressing this problem, the cold district that has builds up indoor type with sewage work's biochemical reaction tank, even is leading to heating installation winter to keep the temperature of reaction tank, cost of investment and running cost are very high, and summer, room temp was very high, also was unfavorable for the carrying out of biochemical reaction.
According to the achievement in research of domestic and international research institution, adopt the process of Wastewater Treated by Activated Sludge Process sewage, be continuous digestion of organic matter of activated bacterial and the process of constantly breeding growth, its active ability is subjected to Temperature Influence.Usually, activated bacterial activity in 20～25 ℃ temperature range is the highest, and fecundity is the strongest, thereby has the ability of higher degradation of organic substances.When temperature was lower than 20 ℃, low temperature had suppressed the breeding and the growth of activated bacterial, and the degradation capability of active sludge begins to reduce, and when particularly being lower than 10 ℃, lowering speed is accelerated, and processing efficiency only has about 40% when the highest.When temperature was higher than 30 ℃, too high temperature suppressed the breeding and the growth of activated bacterial equally, and reaction efficiency descends equally, and temperature is high more, and it is fast more to descend.
Summary of the invention
The objective of the invention is to solve the problems of the prior art, provide a kind of energy-saving effect remarkable, with low cost, the method for the raising sewage treatment speed in low temperature environment of less investment.
Technical scheme of the present invention is: a kind of method that improves sewage treatment speed in low temperature environment, it is characterized in that: biological reaction tank is arranged in the warmhouse booth, described warmhouse booth comprises support frame, transparent material layer and adiabator layer, transparent material layer is covered on the support frame, and adiabator layer is covered on the transparent material layer.
Described biological reaction tank comprises aerobic zone, oxygen-starved area and anaerobic zone successively, and the temperature of aerobic zone is: 20～25 ℃, the temperature of oxygen-starved area is: 22～27 ℃, the temperature of anaerobic zone is: 28～34 ℃.
Preferably, the temperature in the described greenhouse is: 20～25 ℃.
Preferably, described transparent material layer is a transparent plastics, and described adiabator layer is a straw screen or mat.
Described transparent material layer is provided with a plurality of ventilation openings, and the edge of described ventilation opening is provided with and is used to the reinforcing member that prevents that ventilation opening is torn.
Preferably, described a plurality of ventilation openings equidistantly distribute on transparent material layer, and ventilation opening is a square structure.
Preferably, described reinforcing member is an iron wire.
The invention has the beneficial effects as follows:
1, with low cost, less investment.The material that adopts all is a material cheap, easy buying, and very general at northern area, one-time investment is few;
2, maintenance cost is low.After Keelof green house builds, only need 2-3 to get final product according to service condition periodic replacement transparent material layer and adiabator layer, maintenance cost is low;
3, simple to operation.Only need to adjust room temp according to the thermometer in the greenhouse and weather condition gets final product in good time;
4, energy-saving effect is remarkable.The main energy derive that heats up comprises: the heat energy that the gas blower in sun power and the biological reaction tank produces when carrying out aeration.
Description of drawings
Fig. 1 is the influence linear graph of temperature to clearance;
Fig. 2 is the influence linear graph of temperature to the reaction times.
Embodiment
A kind of method that improves sewage treatment speed in low temperature environment of the present invention, it is characterized in that: biological reaction tank is arranged in the warmhouse booth, described warmhouse booth comprises support frame, transparent material layer and adiabator layer, transparent material layer is covered on the support frame, and adiabator layer is covered on the transparent material layer.
Described biological reaction tank comprises aerobic zone, oxygen-starved area and anaerobic zone successively, and the temperature of aerobic zone is: 20～25 ℃, the temperature of oxygen-starved area is: 22～27 ℃, the temperature of anaerobic zone is: 28～34 ℃.Preferably, the temperature in the described greenhouse is: 20～25 ℃.Aerobic zone is to remove the organic main reaction stage, therefore, need be the controlled target in whole greenhouse for 20～25 ℃ with the ideal temperature of aerobic zone, simultaneously, in the specific implementation, the ventilation opening quantity of oxygen-starved area need be reduced, anaerobic zone is not established ventilation opening, the greenhouse tilts to aerobic zone from oxygen-starved area and anaerobic zone, makes the oxygen-starved area in greenhouse and the height of anaerobic zone be higher than aerobic zone, can keep the temperature high slightly with respect to aerobic zone.
Described transparent material layer is provided with a plurality of ventilation openings, and the edge of described ventilation opening is provided with and is used to the reinforcing member that prevents that ventilation opening is torn.
Preferably, described a plurality of ventilation openings equidistantly distribute on transparent material layer, and ventilation opening is a square structure.
Preferably, described reinforcing member is an iron wire.
Transparent material layer can be glass or transparent plastics, the preferably transparent plastics, and cost is lower, and annual usually the replacing once gets final product; Adiabator layer can be straw screen or mat or cotton curtain, preferred straw screen or mat, and cost is lower, and annual usually the replacing once gets final product;
The purpose that ventilation opening is set on the greenhouse transparent material layer is: be unlikely to because the lasting air blast of gas blower causes explosion for keeping the pressure in the greenhouse.The perforated area of described ventilation opening is 6 times of gas blower vent-pipe sectional area, can open 4～8 ventilation openings according to the length of biological reaction tank, 2/3rds vent position is arranged in aerobic zone one side, and 1/3rd ventilation opening is arranged on oxygen-starved area one side, and anaerobic zone is not then established ventilation opening.The greenhouse tilts to aerobic zone from oxygen-starved area and anaerobic zone, makes the oxygen-starved area in greenhouse and a little higher than aerobic zone of height of anaerobic zone.
Below two groups of tests reflected that respectively temperature is to the influence of sewage treatment speed and to the influence in reaction times.
It is 400mg/l that water inlet COD is set, and the biological reaction tank sludge concentration is 3000mg/l, and test is carried out in the adjustable greenhouse of temperature.
First group of test, under the condition of same aeration rate and aeration time, the research temperature is to the influence of organic cod clearance, and test-results is as follows:
| Temperature T | Water outlet COD | The COD clearance |
| ??-5℃ | ??127 | ??68.25％ |
| ??0℃ | ??110 | ??72.5％ |
| ??5℃ | ??95 | ??76.25％ |
| ??10℃ | ??73 | ??81.75％ |
| ??15℃ | ??54 | ??86.5％ |
| ??20℃ | ??38 | ??90.5％ |
| ??25℃ | ??36 | ??91％ |
| ??30℃ | ??40 | ??90％ |
| ??35℃ | ??51 | ??87.25％ |
| ??40℃ | ??82 | ??79.5％ |
Fig. 1 draws according to first group of testing data.
Second group of test, under the condition of same aeration rate, statistics COD reaches the time that 60mg/l consumes, and test-results is as follows:
| Temperature T | T consuming time (minute) |
| ??-5℃ | ??145 |
| ??0℃ | ??120 |
| ??5℃ | ??90 |
| ??10℃ | ??75 |
| ??15℃ | ??65 |
| ??20℃ | ??60 |
| ??25℃ | ??57 |
| ??30℃ | ??70 |
| ??35℃ | ??85 |
| ??40℃ | ??100 |
Fig. 2 draws according to second group of testing data.
First group of test confirmed the bacterium in the active sludge under 20-25 ℃ envrionment temperature, and the strongest to organic degradation capability, sewage treating efficiency is the highest.
Second group of conclusion of drawing of test is: under cold condition, sewage disposal is removed same COD energy needed than the height under normal temperature condition, and temperature is under 0 ℃ or lower situation, and the gas blower energy consumption is 20～25 ℃ of twices under the condition.
By above test as can be known, it is optimum that the temperature of biological reaction tank is controlled at 20～25 ℃, and it is about 50% to reduce direct energy consumption, and cold district is then more.
Embodiment 1:
With China North China sewage work is example, and this factory adopts the activated sludge process of A/A/O technology, 50000 tons of day outputs, and water inlet COD is 220mg/L, begins to enter low temperature season from October, minimum temperature-12 ℃, monthly temperature is as follows:
| Month | Medial temperature |
| October | ??10℃ |
| November | ??1℃ |
| December | ??-7℃ |
| January next year | ??-6℃ |
| February next year | ??3℃ |
| March next year | ??9℃ |
The biological reaction tank of this sewage work is arranged in the pattern plastic warmhouse booth of the present invention, long 32 meters of biological reaction tank, wide 12 meters, warmhouse booth adopts the steel construction support frame, by utilizing the passageway that adds in the reaction tank and this booth of structures to be provided with the support of being disbursed from the cost and expenses of 4 row 8 altogether, interconnection and fix with the structures guardrail.Plastic covering on support frame is opened two respectively at the two ends, greenhouse and is fanned 1.6 square metres observation door, makes things convenient for personnel to pass in and out.In aerobic zone one side, equidistantly leave 6 square ventilation openings, 1.5 square metres of areas are apart from 1.0 meters of bottoms, greenhouse.One side in the oxygen-starved area, 2 square ventilation openings are opened in the place of 10 meters and 20 meters at the distance two ends respectively, and 1.5 square metres of areas are apart from 0.4 meter of bottom, greenhouse.Anaerobic zone is not opened the air port at an end of oxygen-starved area.Fixedly ventilation opening of reinforcing member will be done with iron wire in the edge of ventilation opening.
At night or temperature lower the time, straw screen or mat is covered on the greenhouse, and suitably reduce the unlatching quantity of ventilation opening.By day or temperature higher the time, straw screen or mat is rolled, and suitably increased the unlatching quantity of ventilation opening.
The folding and unfolding of straw screen or mat can be adopted manual type, also can adopt mechanical folding and unfolding, adopts the manual type folding and unfolding in the present embodiment.
Concrete using method:
1, low temperature month, when sunlight is comparatively competent by day, straw screen or mat on the greenhouse to be rolled, sunlight direct irradiation plastic green house is used to absorb sun power and improves temperature.Usually, when weather condition is normal, roll straw screen or mat at 4 in afternoon, and appropriateness increases ventilation opening quantity from 9 of mornings.
2, at dusk, straw screen or mat is covered on the greenhouse, be used to keep the stable of greenhouse temperature, reduce power loss, and then stable biochemical reaction ability.
3, too high and when making greenhouse temperature surpass controlled temperature when daytime temperature, the greenhouse can be comprised that two fans observe whole ventilation openings of door and open, open ventilation opening according to first aerobic zone after the order of oxygen-starved area.
4, when temperature is crossed low and is made greenhouse temperature be lower than controlled temperature, can reduce the unlatching quantity of greenhouse ventilation mouth, close ventilation opening according to first aerobic zone after the order of oxygen-starved area.
5, it should be noted that no matter how low temperature is, ventilation opening is answered 4 unlatchings of minimum maintenance, prevents that the excessive greenhouse is produced of blast of gas blower from destroying.
By observation and the data monitoring of for some time, and be arranged on outdoor operational monitoring data with biological reaction tank in the past and compare, obtain following result:
1, the active sludge overall activity has kept higher biochemical reaction ability than the same period in former years bigger raising being arranged, thereby has improved the reaction efficiency of sewage disposal;
2, the gas blower aeration rate as the same period in former years, does not improve along with the reduction of temperature, but adjusts according to the temperature in the greenhouse, has kept lower aeration rate;
3, by to the measuring and calculating of the data in March October to next year, with former years contemporaneous comparison, 6 months energy-saving effect is followed successively by: 19%, 24%, 46%, 43%, 27%, 21%.
Claims (7)
1. method that improves sewage treatment speed in low temperature environment, it is characterized in that: biological reaction tank is arranged in the warmhouse booth, described warmhouse booth comprises support frame, transparent material layer and adiabator layer, transparent material layer is covered on the support frame, and adiabator layer is covered on the transparent material layer.
2. the method for raising sewage treatment speed in low temperature environment according to claim 1, it is characterized in that: described biological reaction tank comprises aerobic zone, oxygen-starved area and anaerobic zone successively, the temperature of aerobic zone is: 20～25 ℃, the temperature of oxygen-starved area is: 22～27 ℃, the temperature of anaerobic zone is: 28～34 ℃.
3. the method for raising sewage treatment speed in low temperature environment according to claim 1 is characterized in that: the temperature in the described greenhouse is: 20～25 ℃.
4. the method for raising sewage treatment speed in low temperature environment according to claim 1 is characterized in that: described transparent material layer is a transparent plastics, and described adiabator layer is a straw screen or mat.
5. the method for raising sewage treatment speed in low temperature environment according to claim 4 is characterized in that: described transparent material layer is provided with a plurality of ventilation openings, and the edge of described ventilation opening is provided with and is used to the reinforcing member that prevents that ventilation opening is torn.
6. the method for raising sewage treatment speed in low temperature environment according to claim 5 is characterized in that: described a plurality of ventilation openings equidistantly distribute on transparent material layer, and ventilation opening is a square structure.
7. the method for raising sewage treatment speed in low temperature environment according to claim 5 is characterized in that: described reinforcing member is an iron wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101620886A CN101624231B (en) | 2009-08-11 | 2009-08-11 | Method for improving sewage treatment speed in low temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101620886A CN101624231B (en) | 2009-08-11 | 2009-08-11 | Method for improving sewage treatment speed in low temperature environment |
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| Publication Number | Publication Date |
|---|---|
| CN101624231A true CN101624231A (en) | 2010-01-13 |
| CN101624231B CN101624231B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101620886A Expired - Fee Related CN101624231B (en) | 2009-08-11 | 2009-08-11 | Method for improving sewage treatment speed in low temperature environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030454A (en) * | 2010-11-16 | 2011-04-27 | 北京林丰源生态园林绿化工程有限公司 | Aerobic treatment device with sludge sunshine shed |
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2009
- 2009-08-11 CN CN2009101620886A patent/CN101624231B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030454A (en) * | 2010-11-16 | 2011-04-27 | 北京林丰源生态园林绿化工程有限公司 | Aerobic treatment device with sludge sunshine shed |
| CN102030454B (en) * | 2010-11-16 | 2012-05-16 | 北京林丰源生态园林绿化工程有限公司 | Aerobic treatment device with sludge sunshine shed |
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| Publication number | Publication date |
|---|---|
| CN101624231B (en) | 2011-11-16 |
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Denomination of invention: Method for improving sewage treatment speed in low temperature environment Effective date of registration: 20150608 Granted publication date: 20111116 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Beijing Jinkong Automatic Technology Co., Ltd. Registration number: 2015990000447 |
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Address after: 100037, room three, building 91, national cultural building, No. 3 West Third Ring Road, Haidian District, Beijing, Patentee after: BEIJING JINKONG DATA TECHNOLOGY CO., LTD. Address before: 100037, room three, building 91, national cultural building, No. 3 West Third Ring Road, Haidian District, Beijing, Patentee before: Beijing Jinkong Automatic Technology Co., Ltd. |
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