CN105731644A - Integrated wastewater treatment device and integrated wastewater treatment method - Google Patents
Integrated wastewater treatment device and integrated wastewater treatment method Download PDFInfo
- Publication number
- CN105731644A CN105731644A CN201610185071.2A CN201610185071A CN105731644A CN 105731644 A CN105731644 A CN 105731644A CN 201610185071 A CN201610185071 A CN 201610185071A CN 105731644 A CN105731644 A CN 105731644A
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- CN
- China
- Prior art keywords
- district
- flow
- aeration zone
- region
- dephosphorization
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004065 wastewater treatment Methods 0.000 title abstract 5
- 238000005273 aeration Methods 0.000 claims abstract description 44
- 239000010865 sewage Substances 0.000 claims abstract description 44
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 40
- 230000008569 process Effects 0.000 claims description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 239000010802 sludge Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 241000894006 Bacteria Species 0.000 claims description 3
- 229920000388 Polyphosphate Polymers 0.000 claims description 3
- 229920000037 Polyproline Polymers 0.000 claims description 3
- 239000001205 polyphosphate Substances 0.000 claims description 3
- 235000011176 polyphosphates Nutrition 0.000 claims description 3
- 210000005056 cell body Anatomy 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 10
- 239000011574 phosphorus Substances 0.000 abstract description 10
- 239000012528 membrane Substances 0.000 abstract 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 230000036284 oxygen consumption Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention provides an integrated wastewater treatment device and an integrated wastewater treatment method. The integrated wastewater treatment device comprises a reaction tank body and a functional region unit, wherein the functional region unit is arranged in the reaction tank body; the functional region unit comprises a phosphorus removal region, an aeration region and an MBR biological membrane region; the aeration region is connected to the MBR biological membrane region through a second push-flow region; the MBR biological membrane region enters the phosphorus removal region through an opening in the tank body; the phosphorus removal region is connected to the aeration region through a first push-flow region to form a closed loop; a water inlet is formed in the phosphorus removal region; a water outlet is formed in the MBR biological membrane region; to-be-treated sewage firstly enters the closed loop through the phosphorus removal region and then is sequentially subjected to circular flow treatment; water up to the standard is discharged through the MBR biological membrane region. The sewage treatment level is improved; the space is saved.
Description
Technical field
The present invention relates to technical field of sewage, be specifically related to a kind of integrated sewage treatment device and method.
Background technology
The body eutrophication problem that nitrogen, phosphorus cause causes serious puzzlement and harm to environment and human lives, and under the major premise that the nitrogen and phosphorus indexes majority of the discharge of existing Sewage Plant does not reach standard-required, in the urgent need to the nitrogen discharge and phosphorus discharge standard entered in water body being proposed mark transformation.
Existing biological denitrification phosphorous removal technique is (such as A2O, oxidation ditch etc.) also it is respectively provided with simultaneously denitrification dephosphorization technique, but the defect that ubiquity oxygen consumption is high, coefficient of oxygen utilization is low and removal efficiency of nitrogen and phosphorus is not high, and mud is prone to expansion, and the realization of whole set process can produce suitable floor space.
Summary of the invention
In view of this, the present invention provides a kind of integrated sewage treatment device and method, it is intended to improve biochemical treatment ability.
The technical solution used in the present invention particularly as follows:
A kind of integrated sewage treatment device, including reaction tank body and be placed in described reaction tank intrinsic functional areas unit；Wherein:
Described functional areas unit includes aeration zone, MBR biomembrane district and dephosphorization district；
Described aeration zone is connected with described MBR biomembrane district by the second plug-flow district, and described MBR biomembrane district enters described dephosphorization district by the perforate mouth on cell body, and the first plug-flow district of described dephosphorization district is connected to described aeration zone, forms a closed loop.
Dephosphorization district is provided with water inlet, and MBR biomembrane district is provided with outlet, and pending sewage is first is entered closed loop by dephosphorization district, and successively after circulating process, water quality up to standard is discharged through MBR biomembrane district.
In above-mentioned integrated sewage treatment device, the flow direction in described first waterpower plug-flow district and described second waterpower plug-flow district is contrary, and makes the flow direction of closed loop in clockwise.
In above-mentioned integrated sewage treatment device, described first waterpower plug-flow district and described second waterpower plug-flow district are flow velocity and turn to controllable one group of water pump.
In above-mentioned integrated sewage treatment device, the dissolved oxygen concentration of described aeration zone and bobble rise velocity are regulated by oxygen supply aerating system；Specifically:
Make dissolved oxygen concentration < 0.3mg/L；
Make bobble rise velocity≤0.4m/s.
A kind of integral sewage disposal process, including the combination of functional areas and process the linking of technique；Wherein:
Dephosphorization district, aeration zone and MBR biomembrane district are integrated in agreement reaction tank main body, by the combination of multichannel circulating active sludge Yu MBR technique, it is achieved that the combination of functional areas；
Under air-flow in waterpower plug-flow district and aeration zone promotes, the activated sludge in reaction tank body is made to sequentially enter dephosphorization district, aeration zone and the reaction of MBR biomembrane district, different process functions is concentrated in same reaction tank carry out, it is achieved that process the linking of technique.
In above-mentioned integral sewage disposal process, specifically include following steps:
S10, pretreatment sewage enter through water inlet and mix with the circulation mixed liquor of backflow behind dephosphorization district, after the acidifying that in dephosphorization district, Organic substance is hydrolyzed, partly absorbed by the polyP bacteria in dephosphorization district；
S20, residue sewage enter aeration zone under the hydraulic action in the first waterpower plug-flow district, by adopting oxygen supply aerating system that the parameter of aeration zone is controlled, make to form an aerobic micro-mixed environment replaced with anaerobism in reaction tank；
S30, sewage through aeration zone finally enter MBR biomembrane district under the hydraulic action in the second waterpower plug-flow district, it is achieved solid-liquid separation；The supernatant up to standard that solid-liquid separation obtains is discharged through outlet, and remainder after dephosphorization district mixes, starts next round circulation with the sewage after pretreatment newly entered.
In above-mentioned integral sewage disposal process, in step S20, the state modulator of aeration zone is specifically included by oxygen supply aerating system:
1) dissolved oxygen concentration in aeration zone is in the low concentration level less than 0.3mg/L；
2) bobble rise velocity making its aeration is not more than 0.4m/s, and at least than the tradition aeration bubbles rate of climb slow 60%.
The beneficial effect comprise that:
The present invention is by combining multichannel circulating active sludge technique with MBR biomembrane process, define integrated sewage treatment device, device entirety is made to reach preferably sludge age, removal efficiency of nitrogen and phosphorus promotes substantially, and oxygen consumption is low, additionally, the advantage that device entirety also has stronger rich's capacity of resisting impact load and low energy consumption, can better adapt to put forward the main trend of mark transformation, there is good promotional value.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, it is possible to be more completely more fully understood that the present invention.Accompanying drawing described herein is used for providing a further understanding of the present invention, embodiment and explanation thereof to be used for explaining the present invention, is not intended that inappropriate limitation of the present invention.
Fig. 1 is the structural representation of a kind of integrated sewage treatment device of the present invention.
In figure:
1, aeration zone
2, MBR biomembrane district
3, dephosphorization district
41, the first waterpower plug-flow district
42, the second waterpower plug-flow district.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme is described in further detail.
nullA kind of integrated sewage treatment device as shown in Figure 1，It is be largely divided into include aeration zone 1 in one reaction pool、MBR biomembrane district 2 and dephosphorization district 3 are in three interior reaction zones，In waterpower plug-flow district (41、42) and aeration zone 1 air-flow promote under，The activated sludge in reaction tank body is made to sequentially enter each reaction zone and constantly circulate，Different process functions is concentrated in same reaction tank carry out，Combination by multichannel circulating active sludge Yu MBR technique，Micro organism quantity in system is promoted to increase，The sludge age effectively extending whole system reaches optimization，Thus effectively preventing and reduce the expansion of mud，Quickly improve degradation capability organic in sewage，SS (suspendedsolids can not only be removed by denitrogenation dephosphorizing rapidly，Float)，Reduce surplus sludge volume，And sedimentation tank can also be saved，It is greatly saved occupation of land space.Effluent quality can reach Beijing's terrestrial reference one-level A standard.
Adopt above-mentioned integrated sewage treatment device carry out process sewage technique particularly as follows:
The sewage that pretreatment (generally comprises water forward space grid oil removal, setting pot desanding etc.) enters behind dephosphorization district with the circulation mixed liquor of backflow (after MBR film district solid-liquid separation through water inlet, material except except supernatant up to standard) quickly after mixing, in dephosphorization district, Organic substance being hydrolyzed after acidifying, partly (Organic substance after hydrolysis acidification) is absorbed by the polyP bacteria in dephosphorization district；
Residue sewage enters aeration zone 1 under the hydraulic action in the first waterpower plug-flow district 41, by adopting oxygen supply aerating system that the parameter of aeration zone 1 is controlled；Specifically:
1) dissolved oxygen concentration of 1 in aeration zone is in the low concentration level less than 0.3mg/L；
2) bobble rise velocity making its aeration is far smaller than the tradition aeration bubbles rate of climb, at least slow than the tradition aeration bubbles rate of climb 60% (bobble rise velocity such as tradition aeration is about 1m/s, then the present invention sets it to less than 0.4m/s)；
With this understanding, making to define an aerobic micro-mixed environment replaced with anaerobism in reaction tank, this environment achieves nitrification and denitrification in aeration zone 1 and is synchronously performed, and denitrogenation is thorough, processes technique and is carried out efficiently.
Sewage through aeration zone 1 the second waterpower plug-flow district 42 (with the first waterpower plug-flow district push to contrary so that the sewage manifold in reaction tank becomes a closed loop) hydraulic action under finally enter MBR biomembrane district 2, it is achieved solid-liquid separation；
The supernatant up to standard that solid-liquid separation obtains is discharged through outlet, and remainder then quickly mixes in dephosphorization district 3 with the sewage after pretreatment newly entered, and enters dephosphorization district 3, starts next round circulation.
The power-assisted of above-mentioned waterpower plug-flow district (41,42) realizes the water pump that can pass through as produced water velocity and direction and realizes, flowing to, by one group, the effluent cycle that contrary water pump completes in integrated apparatus, the parameter such as concrete flow velocity can regulate according to practical situations such as the pending water yields..
Compared with traditional sewage treatment process, the obvious advantage that the integrated apparatus process sewage of the present invention has includes:
1) compared with traditional handicraft, the power consumption processing ton water is saved to 70%；
2) activated sludge concentration of reaction tank is the 150～200% of conventional processes；
3) the dissolved oxygen efficiency in reaction tank is higher by 150～200% than traditional handicraft, and oxygen demand is reduced to 85～90% than traditional handicraft
4) by dephosphorization district, aeration zone and MBR biomembrane district different disposal technique are organically incorporated in one reaction pool, the space of 50～70% is saved than traditional handicraft, not only save floor space, and the globality of whole technique and harmony are also optimised；
5) reduce by the sludge quantity of 30～40% than traditional handicraft, and multichannel circulating active sludge combines with MBR biomembrane and extends sludge age, makes the surplus sludge volume in process operation process reduce, and has saved the expense of Treatment of Sludge.
Above in association with accompanying drawing, embodiments of the invention having been explained, accompanying drawing herein is used to provide a further understanding of the present invention.Obviously; the foregoing is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto, any be to one skilled in the art can readily occur in, essentially without departing from the change of the present invention or replacement, be also all contained within protection scope of the present invention.
Claims (7)
1. an integrated sewage treatment device, it is characterised in that include reaction tank body and be placed in described reaction tank intrinsic functional areas unit；Wherein:
Described functional areas unit includes aeration zone, MBR biomembrane district and dephosphorization district；
Described aeration zone is connected with described MBR biomembrane district by the second plug-flow district, and described MBR biomembrane district enters described dephosphorization district by the perforate mouth on cell body, and described dephosphorization district is connected to described aeration zone by the first plug-flow district, forms a closed loop.
Dephosphorization district is provided with water inlet, and MBR biomembrane district is provided with outlet, and pending sewage is first is entered closed loop by dephosphorization district, and successively after circulating process, water quality up to standard is discharged through MBR biomembrane district.
2. integrated sewage treatment device according to claim 1, it is characterised in that the flow direction in described first waterpower plug-flow district and described second waterpower plug-flow district is contrary, and make the flow direction of closed loop in clockwise.
3. integrated sewage treatment device according to claim 1, it is characterised in that described first waterpower plug-flow district and described second waterpower plug-flow district are flow velocity and turn to controllable one group of water pump.
4. integrated sewage treatment device according to claim 1, it is characterised in that the dissolved oxygen concentration of described aeration zone and bobble rise velocity are regulated by oxygen supply aerating system；Specifically:
Make dissolved oxygen concentration < 0.3mg/L；
Make bobble rise velocity≤0.4m/s.
5. an integral sewage disposal process, it is characterised in that include the combination of functional areas and process the linking of technique；Wherein:
Dephosphorization district, aeration zone and MBR biomembrane district are integrated in one reaction pool main body, by the combination of multichannel circulating active sludge Yu MBR technique, it is achieved that the combination of functional areas；
Under air-flow in waterpower plug-flow district and aeration zone promotes, the activated sludge in reaction tank body is made to sequentially enter dephosphorization district, aeration zone and the reaction of MBR biomembrane district, different process functions is concentrated in same reaction tank carry out, it is achieved that process the linking of technique.
6. integral sewage disposal process according to claim 5, it is characterised in that specifically include following steps:
S10, pretreatment sewage enter after dephosphorization district mixes with the circulation mixed liquor of backflow through water inlet, after the acidifying that in dephosphorization district, Organic substance is hydrolyzed, partly absorbed by the polyP bacteria in dephosphorization district；
S20, residue sewage enter aeration zone under the hydraulic action in the first waterpower plug-flow district, by adopting oxygen supply aerating system that the parameter of aeration zone is controlled, make to form an aerobic micro-mixed environment replaced with anaerobism in reaction tank；
S30, sewage through aeration zone finally enter MBR biomembrane district under the hydraulic action in the second waterpower plug-flow district, it is achieved solid-liquid separation；The supernatant up to standard that solid-liquid separation obtains is discharged through outlet, and remainder and the sewage after pretreatment newly entered are entering after dephosphorization district mix, and beginning next round circulates.
7. integral sewage disposal process according to claim 6, it is characterised in that in step S20, the state modulator of aeration zone is specifically included by oxygen supply aerating system:
1) dissolved oxygen concentration in aeration zone is in the low concentration level less than 0.3mg/L；
2) bobble rise velocity making its aeration is not more than 0.4m/s, and at least than the tradition aeration bubbles rate of climb slow 60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185071.2A CN105731644A (en) | 2016-03-29 | 2016-03-29 | Integrated wastewater treatment device and integrated wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185071.2A CN105731644A (en) | 2016-03-29 | 2016-03-29 | Integrated wastewater treatment device and integrated wastewater treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105731644A true CN105731644A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610185071.2A Pending CN105731644A (en) | 2016-03-29 | 2016-03-29 | Integrated wastewater treatment device and integrated wastewater treatment method |
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| Country | Link |
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| CN (1) | CN105731644A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282835A (en) * | 2019-07-26 | 2019-09-27 | 广东紫方环保技术有限公司 | Circulating MBR integration equipment of multichannel |
| CN111573997A (en) * | 2020-06-10 | 2020-08-25 | 江西中膜环境技术有限公司 | Integrated sewage treatment device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204714595U (en) * | 2015-05-07 | 2015-10-21 | 易百皓源（北京）环保科技有限公司 | For improveing the integrated sewage disposal pond of AO |
-
2016
- 2016-03-29 CN CN201610185071.2A patent/CN105731644A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204714595U (en) * | 2015-05-07 | 2015-10-21 | 易百皓源（北京）环保科技有限公司 | For improveing the integrated sewage disposal pond of AO |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282835A (en) * | 2019-07-26 | 2019-09-27 | 广东紫方环保技术有限公司 | Circulating MBR integration equipment of multichannel |
| CN111573997A (en) * | 2020-06-10 | 2020-08-25 | 江西中膜环境技术有限公司 | Integrated sewage treatment device |
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Application publication date: 20160706 |