CN104276718B - Biochemical pretreatment device of sewage - Google Patents
Biochemical pretreatment device of sewage Download PDFInfo
- Publication number
- CN104276718B CN104276718B CN201310290408.2A CN201310290408A CN104276718B CN 104276718 B CN104276718 B CN 104276718B CN 201310290408 A CN201310290408 A CN 201310290408A CN 104276718 B CN104276718 B CN 104276718B
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- CN
- China
- Prior art keywords
- oxidation area
- settling zone
- once
- secondary oxidation
- area
- Prior art date
- 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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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
- C02F3/02—Aerobic processes
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/101—Arranged-type packing, e.g. stacks, arrays
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a process and a device for biochemical pretreatment of domestic sewage, and aims at solving the key technology for the pretreatment stage of miniaturized domestic sewage in-situ treatment, so as to achieve environmental protection standard emissions of sewage treatment. Compared with the prior art, the biochemical pretreatment device has the advantages that: a biological packing flowing layer is well combined with a biological packing fixed layer according to the advantages, a good treatment effect can be obtained within a relatively large burden range, the resistance to impact load is strong, the filling rate is easy to select, the filing ratio can be selected according to the requirements, and the requirements of water change are met.
Description
Technical field
The present invention relates to a kind of biochemical sewage pretreatment unit, it is applied to minimize domestic sewage processing system, for solving
The problem of environmental pollution that certainly outlying district is caused due to a lack of sewage network.
Background technology
At present, the more domestic sewage treatment process of domestic big-and-middle-sized sewage treatment plant application, technology maturation is reliable, processes
Respond well.But, the residence district that can not cover for urban drainage pipe network, hotel, holiday village, base of recuperating, wind
Scape tourist spot, the sewage disposal of army frontier sentry, are buried under earth type sewage processing equipment mostly.But from practical application
From the point of view of situation, this technology still has several drawbacks, such as investment operating cost is higher, service life of equipment is short, be unfavorable for maintenance, water
Matter is unstable etc..The utility model sanitary sewage biochemistry pretreatment unit is to solve miniaturization sanitary sewage treatment in situ pretreatment
The key technology in stage, is improved on the basis of existing technology, to realize the qualified discharge of sewage disposal.
Content of the invention
It is an object of the invention to provide a kind of technique of the biochemical pretreatment of novel domestic sewage and device, in order to solve away from
Urban pipe network area small-scale sanitary sewage disposal qualified discharge problem.
The technical solution adopted in the present invention is：This device includes once oxidation area 13, secondary oxidation area 14, settling zone
10, once oxidation area 13, secondary oxidation area 14, settling zone 10 are connected as a single entity successively；Once oxidation area 13 and secondary oxidation area 14
It is connected by lifting hydrophone 8, secondary oxidation area 14 and settling zone 10 are connected by weir flow sieve 9, settling zone 10 and once oxidation area 13
It is connected by return duct 11；Sanitary sewage water inlet pipe 1 is located at once oxidation area 13 top, and biologic packing material fluidized bed a2-1 is located at one
Secondary zoneofoxidation 13 liquid level top, biofilter material fluidized bed a2-1 is provided below water distribution layer 3, and water distribution layer 3 is provided below biologic packing material
Fixed bed 4, biologic packing material fixed bed 4 is provided below biologic packing material supporting layer 5, and water-yielding stratum 6 is located under once oxidation area 13 liquid level
Portion, water-yielding stratum 6 configuration lift hydrophone 8, aerator a7-1 be located at once oxidation area 13 bottom, secondary oxidation area 14 by lift hydrophone 8 in
Top intakes, and biologic packing material fluidized bed b2-2 is located at secondary oxidation area 14 liquid level top, and weir flow sieve 9 is located in secondary oxidation area 14
Portion, aerator b7-2 is located at secondary oxidation area 14 bottom, and settling zone 10 purifies water discharge pipe 12 by weir flow sieve 9 in top water inlet
Positioned at settling zone 10 top, return duct 11 is connected with once oxidation area 13 positioned at settling zone 10 top, and overflow pipe 15 is located at once
Zoneofoxidation 14 top, blast pipe a16-1 is located at once oxidation area 13 top, and blast pipe b16-2 is located at secondary oxidation area 14 top,
Inspection socket a17-1 is located at once oxidation area 13 top, and inspection socket b17-2 is located at secondary oxidation area 14 top, inspection socket c17-3 position
In settling zone 10 top.
Apparatus of the present invention are generally circular in shape or square, and structure is steel or armored concrete.
Once oxidation area 13 of the present invention and secondary oxidation area liquid pass through act hydrophone 8 and convey.
Apparatus of the present invention include once oxidation area, secondary oxidation area, settling zone.The biologic packing material flowing of once oxidation area is exposing
During gas, so that the filler of the attached microbial of floating is moved freely with the convolution inverting action of mixed liquor, continuous renewal is provided
, sufficient bioelectric interface, thus reaching preferable wastewater treatment efficiency, biologic packing material fixation in bottom is biomembranous load
Body, has the effect of retention suspended material concurrently simultaneously, so that water quality treatment amount is improved.Will be defeated for once oxidation area treatment fluid by lifting hydrophone
Deliver to secondary oxidation area.Secondary oxidation area biologic packing material flows in aeration, grown biomembranous packing density because connecing with water
Closely, filler relies on the stirring action of aeration, is in flow regime.Sewage is made continually to contact with the biomembrane on filler, filler
Cut bubble in flow process, make gas distribution more uniform, coefficient of oxygen utilization is improved.The place processing through secondary oxidation area
Reason liquid is sieved by weir flow and flows into settling zone, discharges supernatant water through flat flow.In the case of reaching certain pollutants removal rate, dirty
The time of staying in pond for the water is shorter than traditional biological contact oxidation method, and meanwhile, the ability of anti impulsion load is strengthened.
Biologic packing material (flowing) layer is combined well according to intrinsic advantage by the present invention with biologic packing material (fixation) layer,
Good treatment effect can be obtained in larger load range, capacity of resisting impact load is strong, and filling rate easily selects, as needed
Selective filling ratio, meets water yield change and requires.
Brief description
Fig. 1 process flow diagram
In figure：1. water inlet pipe, 2-1. biologic packing material fluidized bed a, 2-2. biologic packing material fluidized bed b, 3. water distribution layer, 4. biological
Filler fixed bed, 5. biologic packing material supporting layer, 6. water-yielding stratum, 7-1. aeration tube a, 7-2. aeration tube b, 8. lifts hydrophone, 9. weir flow
Sieve, 10. settling zone, 11. return ducts, 12. supernatant water discharge pipes, 13. once oxidation areas, 14. secondary oxidation areas, 15. overflow pipes,
16-1. blast pipe a, 16-2. blast pipe b, 17-1. inspection socket a, 17-2. inspection socket b, 17-3. inspection socket c.
Specific embodiment
Combined process schematic flow sheet specifically describes principle, workflow and the preferred forms of the present invention：
Example 1：
In FIG, sanitary sewage flows into once oxidation area 13 through water inlet pipe 1, passes through aeration tube in once oxidation area 13
A7-1 aeration combined formula biologic packing material fluidized bed a2-1 and biologic packing material fixed bed 4 biological oxidation and Physical entrapment, collect in
Water-yielding stratum 6 is delivered to secondary oxidation area 14 by lifting hydrophone 8, is filled out with biology by aeration tube b7-2 aeration in secondary oxidation area 14
After material fluidized bed b2-2 biomembrane frequently contacts biological oxidation, sieve 9 weir flows to settling zone 10 through weir flow, by flat flow by supernatant
Water discharge pipe 12 is discharged.By lifting hydrophone 8 transport process treatment fluid between once oxidation area 13 and secondary oxidation area 14, have liquid level
Difference, return duct 11 is contour with supernatant water discharge pipe 12, and part supernatant water is back to once oxidation area 13 and carries out nitration reaction.Overflow
Pipe 15 is located at once oxidation area 13, and liquid level is less than return duct 11 liquid level.Exhaust is arranged at once oxidation area 13, secondary oxidation area 14 top
Hole a16-1, steam vent b16-2, inspection socket a17-1, inspection are arranged at once oxidation area 13, secondary oxidation area 14, settling zone 10 top
Mouth b17-2, inspection socket c17-3.This device is generally circular in shape, and structure is steel.
Certain army's post sanitary sewage integrated treatment, in the case that process sanitary sewage scale is 20 ton per days, through this reality
After being processed with new technique, treatment effect is shown in Table 1.Biochemical pretreatment unit water outlet BOD5Below 15mg/L account for 82% with
On, account for 68% in below 10mg/L, water outlet BOD5Substantially it is respectively less than 20mg/L, SS water outlet is respectively less than 25mg/L.Thus may be used
See, after the utility model technical finesse, sewage discharge disclosure satisfy that the existing sewage drainage standard in Beijing.
Table 1 uses the clearance of pollutant after biochemical sewage pretreatment unit
| Analysis project | Water inlet | Water outlet | Clearance/% | Two grades of limit values of Beijing's sewage discharge |
| PH value | 7.25 | 7.1 | 6～9 | |
| Colourity/degree | 52 | 1.0 | 98 | 50 |
| BOD5/(mg/L) | 293 | 12.8 | 95.6 | 20 |
| SS/(mg/L) | 243 | 24 | 90.1 | 50 |
| Total number of bacteria/(individual/mL) | 109 | 230 | 99.9 | - |
| Coliform number/(individual/L) | 104 | 70 | 99 | - |
Claims (1)
1. a kind of biochemical sewage pretreatment unit, it is characterized in that this device include once oxidation area (13), secondary oxidation area (14),
Settling zone (10), once oxidation area (13), secondary oxidation area (14), settling zone (10) are connected as a single entity successively：Once oxidation area
(13) it is connected by lifting hydrophone (8) with secondary oxidation area (14), secondary oxidation area (14) sieve (9) phase with settling zone (10) by weir flow
Connect, settling zone (10) are connected by return duct (11) with once oxidation area (13)；Sanitary sewage water inlet pipe (1) is located at an oxygen
Change area (13) top, biologic packing material fluidized bed a (2-1) is located at once oxidation area (13) liquid level top, biofilter material fluidized bed a
(2-1) water distribution layer (3) is provided below, water distribution layer (3) is provided below biologic packing material fixed bed (4), under biologic packing material fixed bed (4)
Face setting biologic packing material supporting layer (5), water-yielding stratum (6) is located at once oxidation area (13) liquid level bottom, and water is lifted in water-yielding stratum (6) configuration
Device (8), aerator a (7-1) is located at once oxidation area (13) bottom, and secondary oxidation area (14) are intake in top by lifting hydrophone (8),
Biologic packing material fluidized bed b (2-2) is located at secondary oxidation area (14) liquid level top, and weir flow sieve (9) is located in secondary oxidation area (14)
Portion, aerator b (7-2) is located at secondary oxidation area (14) bottom, and settling zone (10) are intake in top by weir flow sieve (9), purified water
Discharge pipe (12) is located at settling zone (10) top, and return duct (11) is located at settling zone (10) top with once oxidation area (13) even
Connect, overflow pipe (15) is located at once oxidation area (13) top, blast pipe a (16-1) is located at once oxidation area (13) top, exhaust
Pipe b (16-2) is located at secondary oxidation area (14) top, and inspection socket a (17-1) is located at once oxidation area (13) top, inspection socket b
(17-2) it is located at secondary oxidation area (14) top, inspection socket c (17-3) is located at settling zone (10) top；
Described once oxidation area (13) and secondary oxidation area liquid pass through to lift hydrophone (8) conveying；
Described biochemical sewage pretreatment unit is generally circular in shape or square, and structure is steel or armored concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310290408.2A CN104276718B (en) | 2013-07-11 | 2013-07-11 | Biochemical pretreatment device of sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310290408.2A CN104276718B (en) | 2013-07-11 | 2013-07-11 | Biochemical pretreatment device of sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104276718A CN104276718A (en) | 2015-01-14 |
| CN104276718B true CN104276718B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310290408.2A Expired - Fee Related CN104276718B (en) | 2013-07-11 | 2013-07-11 | Biochemical pretreatment device of sewage |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09248591A (en) * | 1996-03-12 | 1997-09-22 | Maezawa Kasei Ind Co Ltd | Anaerobic fluidized bed waste water treatment and device therefor |
| CN2791030Y (en) * | 2004-12-10 | 2006-06-28 | 广州市佳境水处理技术工程有限公司 | Microbial reactor for water treatment |
| CN200949077Y (en) * | 2006-07-28 | 2007-09-19 | 重庆大学 | Active sludge-biological film combined type integral sewage treatment equipment |
| CN202369437U (en) * | 2011-11-24 | 2012-08-08 | 北京晓清环保工程有限公司 | Sewage treatment vehicle |
| CN203333372U (en) * | 2013-07-11 | 2013-12-11 | 中国人民解放军环境科学研究中心 | Sewage biochemistry pretreatment device |
-
2013
- 2013-07-11 CN CN201310290408.2A patent/CN104276718B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09248591A (en) * | 1996-03-12 | 1997-09-22 | Maezawa Kasei Ind Co Ltd | Anaerobic fluidized bed waste water treatment and device therefor |
| CN2791030Y (en) * | 2004-12-10 | 2006-06-28 | 广州市佳境水处理技术工程有限公司 | Microbial reactor for water treatment |
| CN200949077Y (en) * | 2006-07-28 | 2007-09-19 | 重庆大学 | Active sludge-biological film combined type integral sewage treatment equipment |
| CN202369437U (en) * | 2011-11-24 | 2012-08-08 | 北京晓清环保工程有限公司 | Sewage treatment vehicle |
| CN203333372U (en) * | 2013-07-11 | 2013-12-11 | 中国人民解放军环境科学研究中心 | Sewage biochemistry pretreatment device |
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| Publication number | Publication date |
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| CN104276718A (en) | 2015-01-14 |
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Granted publication date: 20170222 Termination date: 20200711 |
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| CF01 | Termination of patent right due to non-payment of annual fee |