CN102743900A - 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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- CN102743900A CN102743900A CN2012102308855A CN201210230885A CN102743900A CN 102743900 A CN102743900 A CN 102743900A CN 2012102308855 A CN2012102308855 A CN 2012102308855A CN 201210230885 A CN201210230885 A CN 201210230885A CN 102743900 A CN102743900 A CN 102743900A
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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 and separation method thereof that is used for the waste water pre-treatment, belongs to the environmental project field of waste water treatment.
Background technology
For high concentrated organic wastewater; Like breeding wastewater, alcohol waste water, pharmacy waste water, food processing wastewater, slaughtering wastewater, beer waste water etc. generally adopt marsh gas fermentation process to carry out Anaerobic Digestion; Remove most organic pollutions, reclaim the energy---biogas simultaneously.Water outlet is perhaps passed through post processing qualified discharge later on as farmland fertilizer.
On the one hand, some waste water self-temperatures are not high, and like 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, and COD (COD) is about 5000mg/L; The water yield is big, and the heating and heat preservation difficulty can only adopt the room temperature marsh gas zymotechnique to carry out Anaerobic Digestion; It is low to handle load; Biogas output is low, particularly produces biogas winter hardly, and the average of the whole year pond holds factor of created gase and has only 0.3m
3/ m
3.d about.The biogas fermentation device volume is big as a result, and investment is high.In addition, because the water yield is big, nitrogen phosphorus nutrient content is low, and natural pond liquid value is low, makes natural pond liquid also utilize difficulty in the field, has only through qualified discharge after the post processing.
To the problems referred to above, the patent applicant has invented " based on the pig farm fecal sewage processing method of dense rare separation " (patent No.: ZL200910058472.1).In this patent, piggery wastewater is separated into supernatant liquor (rare sewage) and bottom sediment (strong sewage) through precipitation process.In the employing temperature or near in warm marsh gas fermentation process strong sewage is carried out Anaerobic Digestion and produces biogas, biogas is used for generating, the generating waste-heat or the biogas that burns are used for strong sewage sweat heating and heat preservation, guarantee fermentation temperature reach in temperature or near in temperature.Adopt sequencing batch reactor (SBR) that rare sewage is carried out Aerobic Process for Treatment; Perhaps adopt the room temperature marsh gas zymotechnique that rare sewage is carried out Anaerobic Digestion and produces biogas; Adopt natural processing methods such as artificial swamp, oxidation pond that rare anerobic sowage digestion water outlet is carried out post processing, the treatment yielding water qualified discharge then.The strong sewage anaerobic effluent perhaps gets into rare sewage disposal system and handles with rare sewage as farmland fertilizer.
But, in actual moving process, generally adopt conventional Continuous Flow sedimentation basin that waste water is carried out dense rare separation, solid stream of water has disturbance to sediment, and sedimentation effect is relatively poor.Main is, Continuous Flow can not thoroughly be separated strong sewage with rare sewage, easily rare sewage is taken away when taking out strong sewage, and most of sediment is not taken away, and simultaneously, the upper strata scum silica frost can not be incorporated strong sewage into.These factors have had a strong impact on the practical application effect of " based on the pig farm fecal sewage processing method of dense rare separation ", press for effectively dense rare separator of exploitation.
Summary of the invention
The objective of the invention is to overcome the problems referred to above that existing waste water existed during dense rare separation; A kind of dense rare separator and separation method thereof that is used for the waste water pre-treatment is provided; Adopt sedimentation effect of the present invention better, can improve dense rare separative efficiency, and strong sewage can thoroughly separate with rare sewage.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following:
A kind of dense rare separator that is used for the waste water pre-treatment; It is characterized in that: comprise awl bucket and cylindrical shell, said awl bucket is connected with cylindrical shell, and the awl bucket is communicated with formation sewage disposal chamber with cylindrical shell; Cylindrical shell is provided with charging aperture; The sewage disposal chamber comprises the strong sewage chamber of awl bucket inner chamber formation and rare sewage chamber that cylinder lumen forms, and said awl bucket bottom is provided with the strong sewage pump, is provided with rare sewage pump in the cylindrical shell.
Long-pending 10 ~ 30% of awl bucket inner chamber and the cylinder lumen total measurement (volume) that account for of said awl bucket capacity, the cone angle of awl bucket is 50 ~ 60 °.
Said cylindrical shell one end is connected with the awl bucket, and the other end is an opening end, and the cylindrical shell volume accounts for 70 ~ 90% of awl bucket inner chamber and cylinder lumen total measurement (volume).
Said charging aperture is 280 ~ 320mm apart from the cylindrical shell top margin discrepancy in elevation.
Said rare sewage delivery side of pump is connected to rare anerobic sowage slaking apparatus, and the strong sewage delivery side of pump is connected to the strong sewage anaerobic digestion device.
The indoor liquid level gauge that is provided with of said sewage disposal, rare sewage pump and strong sewage pump are connected with time switch, and start and stop are with time switch and liquid level gauge control.
A kind of dense rare separator and separation method that is used for the waste water pre-treatment is characterized in that: waste water gets into dense rare separator, staticly settle 1 ~ 3 hour after; Start rare sewage pump, the supernatant in the cylindrical shell is pumped into rare anerobic sowage slaking apparatus, after supernatant exhausts; Rare sewage pump quits work, and starts the strong sewage pump then, with the strong sewage suction strong sewage anaerobic digestion device in the awl bucket; After exhausting, the strong sewage pump quits work, and a cycle of operation finishes; Dense rare separator injects waste water, gets into the next cycle of operation.
Said waste water is with the pump suction or flow into dense rare separator certainly.
The liquid level gauge of the indoor setting of said sewage disposal, rare sewage pump and strong sewage pump are connected with time switch, and liquid level gauge, time switch are controlled the start and stop of advancing sewage, rare sewage pump, strong sewage pump.
Employing the invention has the advantages that:
One, the present invention includes awl bucket and cylindrical shell, said awl bucket is connected with cylindrical shell, and the awl bucket is communicated with formation sewage disposal chamber with cylindrical shell; Cylindrical shell is provided with charging aperture, and the sewage disposal chamber comprises the strong sewage chamber of awl bucket inner chamber formation and rare sewage chamber that cylinder lumen forms, and said awl bucket bottom is provided with the strong sewage pump; Be provided with rare sewage pump in the cylindrical shell, adopt this structure to realize static state deposition, than existing Continuous Flow sedimentation basin better effects if; Strong sewage is thoroughly separated with rare sewage; And the scum silica frost that floats on rare sewage can fall into strong sewage after rare sewage exhausts, and produces the very big upper strata scum silica frost of biogas potentiality and incorporates strong sewage into, has improved dense rare separative efficiency.
Two, among the present invention, long-pending 10 ~ 30% of awl bucket inner chamber and the cylinder lumen total measurement (volume) that account for of said awl bucket capacity makes big sediment of product biogas potentiality and scum silica frost sink to the awl bucket, and isolated strong sewage volume is little, heats up easily during heating, and gas producing efficiency is higher during biogas fermentation.The cone angle of awl bucket is 50 ~ 60 °, makes sediment fall awl bucket bottom easily, and then the strong sewage pump can be taken away sediment more up hill and dale.
Three, among the present invention, said cylindrical shell one end is connected with the awl bucket, and the other end is an opening end, and the uncovered sewage ingress of air that makes is difficult for taking place biogas fermentation.The cylindrical shell volume accounts for 70 ~ 90% of awl bucket inner chamber and cylinder lumen total measurement (volume), makes the volume that concentration is low, the little rare sewage of product biogas potentiality accounts for big, to this part rare sewage heating, saves energy during heating.Under the certain condition of sewage total amount, rare sewage volume is big more, and the strong sewage volume is more little.
Four, among the present invention, said 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, among the present invention; Said rare sewage delivery side of pump is connected to rare anerobic sowage slaking apparatus; Be used for rare sewage is taken out toward rare anerobic sowage slaking apparatus; The strong sewage delivery side of pump is connected to the strong sewage anaerobic digestion device, is used for strong sewage is taken out toward the strong sewage anaerobic digestion device, and strong sewage and rare sewage are handled respectively and improved treatment effeciency and utilization rate.
Six, among the present invention, the indoor liquid level gauge that is provided with of said sewage disposal, rare sewage pump and strong sewage pump are connected with time switch; Can control the start and stop of advancing sewage, rare sewage pump, strong sewage pump; After rare sewage is exhausted, take out strong sewage again, strong sewage can thoroughly separate with rare sewage.
Seven, in the apparatus and method of the present invention, waste water gets into dense rare separator, staticly settle 1 ~ 3 hour after, staticly settle and can make strong sewage and rare sewage realize more effectively separating; Start rare sewage pump, the supernatant in the cylindrical shell is pumped into rare anerobic sowage slaking apparatus, after supernatant exhausted, rare sewage pump quit work; Start the strong sewage pump then, with the strong sewage suction strong sewage anaerobic digestion device in the awl bucket, after exhausting; The strong sewage pump quits work, and a cycle of operation finishes, and dense rare separator advances waste water; Get into the next cycle of operation, the method has realized thoroughly separating of strong sewage and rare sewage on the basis of static state deposition.
Eight, among the present invention, said waste water is with the pump suction or flow into dense rare separator certainly, and two kinds of feeding manners can be selected according to actual conditions, has improved the flexibility that the present invention uses, and is easy to promote the use of.
Description of drawings
Fig. 1 is the structural representation of the dense rare separator of the present invention
Be labeled as among the figure: 1, awl bucket, 2, cylindrical shell, 3, charging aperture, 4, rare sewage pump, 5, the strong sewage pump, 6, liquid level gauge, 7, cone angle.
The specific embodiment
Embodiment 1
A kind of dense rare separator that is used for the waste water pre-treatment; Comprise awl bucket 1 and cylindrical shell 2, said awl bucket 1 is connected with cylindrical shell 2, and awl struggles against and 1 is communicated with formation sewage disposal chamber with cylindrical shell 2; Cylindrical shell 2 is provided with charging aperture 3; The sewage disposal chamber comprises strong sewage chamber that awl bucket inner chamber forms and rare sewage chamber of cylinder lumen formation, and said awl 1 bottom of struggling against is provided with strong sewage pump 5, is provided with rare sewage pump 4 in the cylindrical shell 2.
Preferred implementation of the present invention does, said awl 1 volume that struggles against accounts for 10% of awl bucket inner chamber and cylinder lumen total measurement (volume), and the cone angle 7 that awl struggles against is 60 °, but is not limited thereto mode.
Another preferred implementation of the present invention does, said cylindrical shell 2 one ends are connected with awl bucket 1, and the other end is an opening end, and cylindrical shell 2 volumes account for awl 90% of inner chamber and the cylinder lumen total measurement (volume) that struggle against, but are not limited thereto mode.
Another preferred implementation of the present invention is that said charging aperture 3 is 280mm apart from the cylindrical shell 2 top margin discrepancy in elevation, but is not limited thereto mode.
Among the present invention, the outlet of said rare sewage pump 4 is connected to rare anerobic sowage slaking apparatus, and the outlet of strong sewage pump 5 is connected to the strong sewage anaerobic digestion device.
The indoor liquid level gauge 6 that is provided with of said sewage disposal, rare sewage pump 4 is connected with time switch with strong sewage pump 5, and liquid level gauge 6 is controlled the start and stop of advancing sewage, rare sewage pump 4, strong sewage pump 5 with time switch.
Among the present invention, rare sewage pump can be selected AS type submersible sewage pump, but is not limited thereto model.The model that the strong sewage pump can be selected is that anti-obstruction of AV-CB band torn the submersible sewage pump of mechanism, but is not limited thereto the submersible sewage pump of the anti-obstruction of model.
A kind of separation method that is used for dense rare separator of waste water pre-treatment, waste water get into dense rare separator, staticly settle 3 hours after, start rare sewage pump; Supernatant in the cylindrical shell is pumped into rare anerobic sowage slaking apparatus, and after supernatant exhausted, rare sewage pump quit work, and started the strong sewage pump then; With the strong sewage suction strong sewage anaerobic digestion device in the awl bucket, after exhausting, the strong sewage pump quits work; A cycle of operation finishes, and dense rare separator advances waste water, gets into the next cycle of operation.
The separation method that is used for dense rare separator of waste water pre-treatment, said waste water can or flow into dense rare separator certainly with the pump suction.
The present invention mainly comprises awl bucket 1, cylindrical shell 2, charging aperture 3, rare sewage pump 4, strong sewage pump 5, liquid level gauge 6 etc.
(1) awl bucket 1 is positioned at the device bottom, and awl 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 in the cylindrical shell bottom, be used for rare sewage is taken out toward rare anerobic sowage slaking apparatus, how many rare sewage pump 4 positions can be adjusted up and down according to supernatant.
(4) establish strong sewage pump 5 in awl bucket bottom, be used for strong sewage is taken out toward the strong sewage anaerobic digestion device, strong sewage pump 5 has cutting function.
(5) with pump with waste water suction or waste water after flow into dense rare separator, staticly settling 2 hours, start rare sewage pump 4, supernatant is pumped into rare anerobic sowage slaking apparatus, after supernatant exhausted, pump stopped automatically.Start strong sewage pump 5 then, with lower floor's strong sewage suction strong sewage anaerobic digestion device, after exhausting, pump stops automatically, and a cycle of operation finishes.Dense rare separator begins water inlet again, gets into the next cycle of operation.
(6) in device, establish liquid level gauge 6, control with the start and stop of time switch and 6 pairs of chargings of liquid level gauge, rare sewage pump, strong sewage pump.
Present embodiment and the foregoing description are basic identical, and the main distinction is: long-pending 30% of awl bucket inner chamber and the cylinder lumen total measurement (volume) that account for of said awl bucket capacity, the cone angle of awl bucket is 50 °.Said cylindrical shell volume accounts for 70% of awl bucket inner chamber and cylinder lumen total measurement (volume).Said charging aperture is 300mm apart from the cylindrical shell top margin discrepancy in elevation.Further, in separation method, the time that staticly settles is 1 hour.
Claims (8)
1. dense rare separator that is used for the waste water pre-treatment; It is characterized in that: comprise awl bucket (1) and cylindrical shell (2); Said awl bucket (1) is connected with cylindrical shell (2); And bore bucket (1) and be communicated with formation sewage disposal chamber with cylindrical shell (2), cylindrical shell (2) is provided with charging aperture (3), and the sewage disposal chamber comprises the strong sewage chamber of awl bucket inner chamber formation and rare sewage chamber that cylinder lumen forms; Said awl bucket (1) bottom is provided with strong sewage pump (5), is provided with rare sewage pump (4) in the cylindrical shell (2).
2. the dense rare separator that is used for the waste water pre-treatment according to claim 1 is characterized in that: said awl bucket (1) volume accounts for 10 ~ 30% of awl bucket inner chamber and cylinder lumen total measurement (volume), and the cone angle (7) of awl bucket (1) is 50 ~ 60 °.
3. the dense rare separator that is used for the waste water pre-treatment according to claim 1 and 2; It is characterized in that: said cylindrical shell (2) one ends are connected with awl bucket (1); The other end is an opening end, and cylindrical shell (2) volume accounts for 70 ~ 90% of awl bucket inner chamber and cylinder lumen total measurement (volume).
4. the dense rare separator that is used for the waste water pre-treatment according to claim 1 and 2 is characterized in that: the outlet of said rare sewage pump (4) is connected to rare anerobic sowage slaking apparatus, and the outlet of strong sewage pump (5) is connected to the strong sewage anaerobic digestion device.
5. the dense rare separator that is used for the waste water pre-treatment according to claim 4 is characterized in that: the indoor liquid level gauge (6) that is provided with of said sewage disposal, rare sewage pump (4) and strong sewage pump (5) are connected with time switch.
6. the separation method that is used for dense rare separator of waste water pre-treatment according to claim 1 is characterized in that: waste water gets into dense rare separator, staticly settle 1 ~ 3 hour after; Start rare sewage pump, the supernatant in the cylindrical shell is pumped into rare anerobic sowage slaking apparatus, after supernatant exhausts; Rare sewage pump quits work, and starts the strong sewage pump then, with the strong sewage suction strong sewage anaerobic digestion device in the awl bucket; After exhausting, the strong sewage pump quits work, and a cycle of operation finishes; Dense rare separator advances waste water, gets into the next cycle of operation.
7. the separation method that is used for dense rare separator of waste water pre-treatment according to claim 6 is characterized in that: said waste water is with the pump suction or flow into dense rare separator certainly.
8. according to claim 6 or the 7 described separation methods that are used for dense rare separator of waste water pre-treatment, it is characterized in that: the time switch that the liquid level gauge of the indoor setting of said sewage disposal and rare sewage pump are connected with the strong sewage pump is controlled the start and stop of advancing sewage, rare sewage pump, strong sewage pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 true CN102743900A (en) | 2012-10-24 |
| CN102743900B 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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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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Change date: 20190725 Contract record no.: 2018510000079 License type after: General permission License type before: Exclusive license |