CN102743900B - Dense and thin wastewater separation device used in pre-treatment of wastewater and separation method used by same - Google Patents
Dense and thin wastewater separation device used in pre-treatment of wastewater and separation method used by same Download PDFInfo
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- CN102743900B CN102743900B CN201210230885.5A CN201210230885A CN102743900B CN 102743900 B CN102743900 B CN 102743900B CN 201210230885 A CN201210230885 A CN 201210230885A CN 102743900 B CN102743900 B CN 102743900B
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Abstract
The invention discloses a dense and thin wastewater separation device used in pre-treatment of wastewater and a separation method used by the same. The dense and thin wastewater separation device comprises a cone bucket and a barrel, wherein the cone bucket is connected with the barrel, the cone bucket and the barrel are communicated with each other to form a sewage treatment chamber, the barrel is provided with a feed inlet, the sewage treatment chamber comprises a dense sewage chamber formed by the inner cavity of the cone bucket and a thin sewage chamber formed by the inner cavity of the barrel, a dense sewage pump is arranged at the bottom of the cone bucket, and a thin sewage pump is arranged in the barrel. With the separation device and the separation method provided by the invention, a better sedimentation effect is obtained, dense and thin wastewater separation efficiency is improved, and dense sewage is thoroughly separated from thin sewage.
Description
Technical field
The present invention relates generally to a kind of dense rare separator for waste water pre-treatment and separation method thereof, belongs to environmental project field of waste water treatment.
Background technology
For high concentrated organic wastewater, as breeding wastewater, alcohol waste water, pharmacy waste water, food processing wastewater, slaughtering wastewater, beer waste water etc., the general marsh gas fermentation process that adopts carries out Anaerobic Digestion, remove most organic pollution, reclaim the energy simultaneously---biogas.Water outlet be used as farmland fertilizer, or after post processing qualified discharge.
On the one hand, some waste water self-temperatures are not high, and as breeding wastewater, slaughtering wastewater, food processing wastewater etc., when carrying out Anaerobic Digestion, winter, weak effect, often needed heating.But, these waste strengths are not very high, COD (COD) is at about 5000mg/L, the water yield is large, and heating and heat preservation difficulty, can only adopt room temperature marsh gas zymotechnique to carry out Anaerobic Digestion, processing load is low, biogas output is low, particularly produces biogas hardly winter, and average of the whole year pond holds factor of created gase and only has 0.3m
3/ m
3.d left and right.Result biogas fermentation device volume is large, invests high.In addition, because the water yield is large, nitrogen phosphorus nutrient content is low, and natural pond liquid value is low, makes natural pond liquid cropland application difficulty, only has qualified discharge after post processing.
For the problems referred to above, patent applicant has invented " the piggery waste water processing method based on dense rare separation " (patent No.: ZL200910058472.1).In this patent, by precipitation process, piggery wastewater is separated into supernatant liquor (rare sewage) and bottom sediment thing (strong sewage).In warm or near in employing, warm marsh gas fermentation process carries out Anaerobic Digestion to strong sewage and produces biogas, and biogas is for generating, and generating waste-heat or burning biogas, for strong sewage sweat heating and heat preservation, ensure that fermentation temperature reaches middle temperature or nearly middle temperature.Sequencing batch reactor (SBR) is adopted to carry out Aerobic Process for Treatment to rare sewage, or adopt room temperature marsh gas zymotechnique carry out Anaerobic Digestion to rare sewage and produce biogas, then the natural processing method such as artificial swamp, oxidation pond is adopted to carry out post processing to rare sewage anaerobic digestion water outlet, the discharge of process standard water discharge.Strong sewage anaerobic effluent is used as farmland fertilizer, or enters rare sewage disposal system and process together with rare sewage.
But in actual moving process, the general Traditional continuous flow sedimentation basin that adopts carries out dense rare separation to waste water, and solid stream of water has disturbance to sediment, and sedimentation effect is poor.More importantly, strong sewage can not thoroughly be separated with rare sewage by Continuous Flow, and easily taken away by rare sewage when taking out strong sewage, and most of sediment is not taken away, meanwhile, upper strata scum silica frost can not be incorporated to strong sewage.These factors have had a strong impact on the practical application effect of " the piggery waste water processing method based on dense rare separation ", in the urgent need to developing effective dense rare separator.
Summary of the invention
The object of the invention is to overcome the dense rare the problems referred to above existed when being separated of existing waste water, a kind of dense rare separator for waste water pre-treatment and separation method thereof are provided, adopt sedimentation effect of the present invention better, dense rare separative efficiency can be improved, and strong sewage thoroughly can be separated with rare sewage.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of dense rare separator for waste water pre-treatment, it is characterized in that: comprise cone bucket and cylindrical shell, described cone bucket is connected with cylindrical shell, and cone bucket to be communicated with cylindrical shell and to form sewage disposal room, cylindrical shell is provided with charging aperture, sewage disposal room comprises the strong sewage room of cone bucket inner chamber formation and rare sewage chamber of cylinder lumen formation, is provided with strong sewage pump, is provided with rare sewage pump in cylindrical shell bottom described cone bucket.
Described cone bucket capacity amasss and accounts for 10 ~ 30% of cone bucket inner chamber and cylinder lumen total measurement (volume), and the cone angle of cone bucket is 50 ~ 60 °.
Struggle against with cone and be connected in described cylindrical shell one end, the other end is opening end, and cylindrical shell volume accounts for 70 ~ 90% of cone bucket inner chamber and cylinder lumen total measurement (volume).
Described charging aperture is 280 ~ 320mm apart from the cylindrical shell top margin discrepancy in elevation.
Described rare sewage delivery side of pump is connected to rare sewage anaerobic digestion device, and strong sewage delivery side of pump is connected to strong sewage anaerobic digestion device.
Described sewage disposal indoor are provided with liquid level gauge, and rare sewage pump and strong sewage pump are connected with time switch, and start and stop time switch and liquid level gauge control.
A kind of dense rare separator for waste water pre-treatment and separation method, it is characterized in that: waste water enters dense rare separator, after staticly settling 1 ~ 3 hour, start rare sewage pump, supernatant in cylindrical shell is pumped into rare sewage anaerobic digestion device, after supernatant exhausts, rare sewage pump quits work, then strong sewage pump is started, by the strong sewage suction strong sewage anaerobic digestion device in cone bucket, after exhausting, strong sewage pump quits work, a cycle of operation terminates, and dense rare separator injects waste water, enters the next cycle of operation.
The suction of described waste water pump or gravity flow enter dense rare separator.
The liquid level gauge of the indoor setting of described sewage disposal, rare sewage pump and strong sewage pump are connected with time switch, liquid level gauge, time switch to enter sewage, rare sewage pump, strong sewage pump start and stop control.
Employing the invention has the advantages that:
One, the present invention includes cone bucket and cylindrical shell, described cone bucket is connected with cylindrical shell, and cone bucket to be communicated with cylindrical shell and to form sewage disposal room, cylindrical shell is provided with charging aperture, sewage disposal room comprises the strong sewage room of cone bucket inner chamber formation and rare sewage chamber of cylinder lumen formation, described cone bucket bottom is provided with strong sewage pump, rare sewage pump is provided with in cylindrical shell, this structure is adopted to realize static state deposition, than existing Continuous Flow sedimentation basin better effects if, strong sewage can be made thoroughly to be separated with rare sewage, and the scum silica frost floated on rare sewage can fall into strong sewage after rare sewage exhausts, the upper strata scum silica frost producing its biogas potentiality very large is incorporated to strong sewage, improve dense rare separative efficiency.
Two, in the present invention, described cone bucket capacity amasss and accounts for 10 ~ 30% of cone bucket inner chamber and cylinder lumen total measurement (volume), and make the large sediment of product its biogas potentiality and scum silica frost sink to cone bucket, isolated strong sewage volume is little, and heat up easily during heating, during biogas fermentation, gas producing efficiency is higher.The cone angle of cone bucket is 50 ~ 60 °, makes sediment easily fall cone bucket bottom, and then sediment can be taken away by strong sewage pump more up hill and dale.
Three, in the present invention, struggle against be connected with cone in described cylindrical shell one end, the other end is opening end, uncoveredly makes waste water air, not easily biogas fermentation occurs.Cylindrical shell volume accounts for 70 ~ 90% of cone bucket inner chamber and cylinder lumen total measurement (volume), and the volume that rare sewage that concentration is low, product its biogas potentiality is little is accounted for is large, not to this part rare sewage heating during heating, saves energy.Under the condition that sewage total amount is certain, rare sewage volume is larger, and strong sewage volume is less.
Four, in the present invention, described charging aperture is 280 ~ 320mm apart from the cylindrical shell top margin discrepancy in elevation, adopts this high official post sewage to be unlikely to overflow.
Five, in the present invention, described rare sewage delivery side of pump is connected to rare sewage anaerobic digestion device, for rare sewage being taken out toward rare sewage anaerobic digestion device, strong sewage delivery side of pump is connected to strong sewage anaerobic digestion device, for being taken out by strong sewage toward strong sewage anaerobic digestion device, strong sewage and rare sewage process respectively and improve treatment effeciency and utilization rate.
Six, in the present invention, described sewage disposal indoor are provided with liquid level gauge, and rare sewage pump and strong sewage pump are connected with time switch, can to enter sewage, rare sewage pump, strong sewage pump start and stop control, after rare sewage is exhausted, then take out strong sewage, strong sewage can thoroughly be separated with rare sewage.
Seven, in apparatus and method of the present invention, waste water enters dense rare separator, after staticly settling 1 ~ 3 hour, staticly settle and strong sewage and rare sewage can be made to realize more effectively being separated, start rare sewage pump, supernatant in cylindrical shell is pumped into rare sewage anaerobic digestion device, after supernatant exhausts, rare sewage pump quits work, then strong sewage pump is started, by the strong sewage suction strong sewage anaerobic digestion device in cone bucket, after exhausting, strong sewage pump quits work, a cycle of operation terminates, dense rare separator enters waste water, enter the next cycle of operation, the method is on the basis of static state deposition, achieve thoroughly being separated of strong sewage and rare sewage.
Eight, in the present invention, the suction of described waste water pump or gravity flow enter dense rare separator, and two kinds of feeding manners, can select according to actual conditions, improve the flexibility that the present invention uses, are easy to promote the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of the dense rare separator of the present invention
Be labeled as in figure: 1, cone bucket, 2, cylindrical shell, 3, charging aperture, 4, rare sewage pump, 5, strong sewage pump, 6, liquid level gauge, 7, cone angle.
Detailed description of the invention
Embodiment 1
A kind of dense rare separator for waste water pre-treatment, comprise cone bucket 1 and cylindrical shell 2, described cone bucket 1 is connected with cylindrical shell 2, and cone bucket 1 is communicated with cylindrical shell 2 and forms sewage disposal room, cylindrical shell 2 is provided with charging aperture 3, sewage disposal room comprises the strong sewage room of cone bucket inner chamber formation and rare sewage chamber of cylinder lumen formation, is provided with strong sewage pump 5, is provided with rare sewage pump 4 in cylindrical shell 2 bottom described cone bucket 1.
The preferred embodiment of the present invention is, described cone bucket 1 volume accounts for 10% of cone bucket inner chamber and cylinder lumen total measurement (volume), and the cone angle 7 of cone bucket is 60 °, but is not limited thereto mode.
Another preferred embodiment of the present invention is, described cylindrical shell 2 one end is connected with cone bucket 1, and the other end is opening end, and cylindrical shell 2 volume accounts for 90% of cone bucket inner chamber and cylinder lumen total measurement (volume), but is not limited thereto mode.
Another preferred embodiment of the present invention is, described charging aperture 3 is 280mm apart from the cylindrical shell 2 top margin discrepancy in elevation, but is not limited thereto mode.
In the present invention, the outlet of described rare sewage pump 4 is connected to rare sewage anaerobic digestion device, and the outlet of strong sewage pump 5 is connected to strong sewage anaerobic digestion device.
Described sewage disposal indoor are provided with liquid level gauge 6, and rare sewage pump 4 and strong sewage pump 5 are connected with time switch, liquid level gauge 6 and time switch to enter sewage, rare sewage pump 4, strong sewage pump 5 start and stop control.
In the present invention, rare sewage pump can select AS type submersible sewage pump, but is not limited thereto model.The model that strong sewage pump can be selected is that AV-CB is with anti-clogging to tear the submersible sewage pump of mechanism, but is not limited thereto the submersible sewage pump of the anti-clogging of model.
For a separation method for dense rare separator of waste water pre-treatment, waste water enters dense rare separator, after staticly settling 3 hours, start rare sewage pump, the supernatant in cylindrical shell is pumped into rare sewage anaerobic digestion device, after supernatant exhausts, rare sewage pump quits work, then strong sewage pump is started, by the strong sewage suction strong sewage anaerobic digestion device in cone bucket, after exhausting, strong sewage pump quits work, a cycle of operation terminates, and dense rare separator enters waste water, enters the next cycle of operation.
In separation method for dense rare separator of waste water pre-treatment, described waste water can enter dense rare separator with pump suction or gravity flow.
Embodiment 2
The present invention mainly comprises cone bucket 1, cylindrical shell 2, charging aperture 3, rare sewage pump 4, strong sewage pump 5, liquid level gauge 6 etc.
(1) bore bucket 1 and be positioned at device bottom, cone bucket 1 volume accounts for 20% of whole device volume, and cone angle 7 is 55 °.
(2) cylindrical shell 2 is uncovered, and volume accounts for 80% of device volume, and charging aperture 3 is established on cylindrical shell top, apart from cylindrical shell top margin discrepancy in elevation 320mm.
(3) establish rare sewage pump 4 at cylinder body bottom, for being taken out by rare sewage toward rare sewage anaerobic digestion device, how many rare sewage pump 4 positions can adjust up and down according to supernatant.
(4) establish strong sewage pump 5 in cone bucket bottom, for being taken out by strong sewage toward strong sewage anaerobic digestion device, strong sewage pump 5 has cutting function.
(5) with pump, waste water suction or waste water gravity flow are entered dense rare separator, after staticly settling 2 hours, start rare sewage pump 4, supernatant is pumped into rare sewage anaerobic digestion device, after supernatant exhausts, pump stops automatically.Then start strong sewage pump 5, by lower floor's strong sewage suction strong sewage anaerobic digestion device, after exhausting, pump stops automatically, and a cycle of operation terminates.Dense rare separator starts again water inlet, enters the next cycle of operation.
(6) in device, establish liquid level gauge 6, control with the start and stop of time switch and liquid level gauge 6 pairs of chargings, rare sewage pump, strong sewage pump.
Embodiment 3
The present embodiment and above-described embodiment are substantially identical, and the main distinction is: described cone bucket capacity amasss and accounts for 30% of cone bucket inner chamber and cylinder lumen total measurement (volume), and the cone angle of cone bucket is 50 °.Described cylindrical shell volume accounts for 70% of cone bucket inner chamber and cylinder lumen total measurement (volume).Described charging aperture is 300mm apart from the cylindrical shell top margin discrepancy in elevation.Further, in separation method, the time staticly settled is 1 hour.
Claims (3)
1. the separation method for dense rare separator of waste water pre-treatment, it is characterized in that: waste water enters dense rare separator, after staticly settling 1 ~ 3 hour, start rare sewage pump, supernatant in cylindrical shell is pumped into rare sewage anaerobic digestion device, after supernatant exhausts, rare sewage pump quits work, then strong sewage pump is started, by the strong sewage suction strong sewage anaerobic digestion device in cone bucket, after exhausting, strong sewage pump quits work, a cycle of operation terminates, and dense rare separator enters waste water, enters the next cycle of operation;
Described dense rare separator comprises cone bucket (1) and cylindrical shell (2), described cone bucket (1) is connected with cylindrical shell (2), and cone bucket (1) is communicated with cylindrical shell (2) and forms sewage disposal room, cylindrical shell (2) is provided with charging aperture (3), sewage disposal room comprises the strong sewage room of cone bucket inner chamber formation and rare sewage chamber of cylinder lumen formation, described cone bucket (1) bottom is provided with strong sewage pump (5), is provided with rare sewage pump (4) in cylindrical shell (2); Described cone bucket (1) volume accounts for 10 ~ 30% of cone bucket inner chamber and cylinder lumen total measurement (volume), and the cone angle (7) of cone bucket (1) is 50 ~ 60 °; Described cylindrical shell (2) one end and cone struggle against (1) is connected, the other end is opening end, and cylindrical shell (2) volume accounts for bores 70 ~ 90% of inner chamber and the cylinder lumen total measurement (volume) that struggle against.
2. the separation method of the dense rare separator for waste water pre-treatment according to claim 1, is characterized in that: the suction of described waste water pump or gravity flow enter dense rare separator.
3. the separation method of the dense rare separator for waste water pre-treatment according to claim 1 and 2, is characterized in that: the time switch that the liquid level gauge of the indoor setting of described sewage disposal and rare sewage pump are connected with strong sewage pump to enter sewage, rare sewage pump, strong sewage pump start and stop control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210230885.5A CN102743900B (en) | 2012-07-05 | 2012-07-05 | Dense and thin wastewater separation device used in pre-treatment of wastewater and separation method used by same |
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| CN201210230885.5A CN102743900B (en) | 2012-07-05 | 2012-07-05 | Dense and thin wastewater separation device used in pre-treatment of wastewater and separation method used by same |
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| CN102743900A CN102743900A (en) | 2012-10-24 |
| CN102743900B true CN102743900B (en) | 2015-07-01 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000026145A1 (en) * | 1998-10-29 | 2000-05-11 | Federalnoe Gosudarstvennoe Unitarnoe Predpriyatie 'issledovatelsky Tsentr Imeni M.V.Keldysha' | Clarifier and water purification and clarification plant |
| EP1629874A1 (en) * | 2004-08-26 | 2006-03-01 | Epur S.A. | Apparatus for sewage treatment plants for extracting sludge |
| CN101823806A (en) * | 2009-03-03 | 2010-09-08 | 农业部沼气科学研究所 | Piggery waste water treatment method based on strong-thin shunt |
| CN201840915U (en) * | 2010-09-16 | 2011-05-25 | 潘自安 | Grit chamber for sewage treatment |
| CN201921558U (en) * | 2011-01-29 | 2011-08-10 | 陈忠和 | Leaching device for solid-liquid separation |
| CN202212034U (en) * | 2011-08-31 | 2012-05-09 | 邹平县海华纸业有限公司 | Continuous settling column |
| CN202223937U (en) * | 2011-05-30 | 2012-05-23 | 河南巨龙生物工程股份有限公司 | Sewage precipitation tank |
-
2012
- 2012-07-05 CN CN201210230885.5A patent/CN102743900B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000026145A1 (en) * | 1998-10-29 | 2000-05-11 | Federalnoe Gosudarstvennoe Unitarnoe Predpriyatie 'issledovatelsky Tsentr Imeni M.V.Keldysha' | Clarifier and water purification and clarification plant |
| EP1629874A1 (en) * | 2004-08-26 | 2006-03-01 | Epur S.A. | Apparatus for sewage treatment plants for extracting sludge |
| CN101823806A (en) * | 2009-03-03 | 2010-09-08 | 农业部沼气科学研究所 | Piggery waste water treatment method based on strong-thin shunt |
| CN201840915U (en) * | 2010-09-16 | 2011-05-25 | 潘自安 | Grit chamber for sewage treatment |
| CN201921558U (en) * | 2011-01-29 | 2011-08-10 | 陈忠和 | Leaching device for solid-liquid separation |
| CN202223937U (en) * | 2011-05-30 | 2012-05-23 | 河南巨龙生物工程股份有限公司 | Sewage precipitation tank |
| CN202212034U (en) * | 2011-08-31 | 2012-05-09 | 邹平县海华纸业有限公司 | Continuous settling column |
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| CN102743900A (en) | 2012-10-24 |
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Application publication date: 20121024 Assignee: Chengdu Zhongnong Energy and Environmental Engineering Design Co., Ltd. Assignor: Methane Scientific Research Inst., Ministry of Agriculture Contract record no.: 2018510000079 Denomination of invention: Dense and thin wastewater separation device used in pre-treatment of wastewater and separation method used by same Granted publication date: 20150701 License type: Exclusive License Record date: 20181225 |
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