CN104276718A - Biochemical pretreatment device of sewage - Google Patents
Biochemical pretreatment device of sewage Download PDFInfo
- Publication number
- CN104276718A CN104276718A CN201310290408.2A CN201310290408A CN104276718A CN 104276718 A CN104276718 A CN 104276718A CN 201310290408 A CN201310290408 A CN 201310290408A CN 104276718 A CN104276718 A CN 104276718A
- Authority
- CN
- China
- Prior art keywords
- oxidation district
- once
- district
- settling region
- once oxidation
- 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
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- 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, be applied to miniaturization domestic sewage processing system, for solving the side area for want of problem of environmental pollution that causes of sewage network.
Background technology
At present, domestic big-and-middle-sized sewage work applies more domestic sewage treatment process, and technology maturation is reliable, and treatment effect is good.But, the sewage disposal of the biotope that can not cover for urban drainage pipe network, hotel, holiday village, base of recuperating, scenic spot, army frontier sentry, be buried under earth type sewage treatment facility mostly.But from practical situations, this technology also comes with some shortcomings, as invested, working cost is higher, service life of equipment is short, be unfavorable for maintenance, water quality is unstable.The biochemical pretreatment unit of sanitary sewage of the present invention is the gordian technique solving miniaturization sanitary sewage treatment in situ pretreatment stage, improves on the basis of existing technology, to realize the qualified discharge of sewage disposal.
Summary of the invention
The object of this invention is to provide the biochemical pretreated technique of a kind 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 comprises once oxidation district 13, secondary oxidation district 14, settling region 10, and once oxidation district 13, secondary oxidation district 14, settling region 10 are connected as a single entity successively, once oxidation district 13 is connected by lifting hydrophone 8 with secondary oxidation district 14, and secondary oxidation district 14 sieves 9 with settling region 10 by weir flow and is connected, and settling region 10 is connected by return line 11 with once oxidation district 13, sanitary sewage water inlet pipe 1 is positioned at top, once oxidation district 13, biologic packing material fluidised bed a2-1 is positioned at liquid level top, once oxidation district 13, below biofilter material fluidised bed a2-1, water distribution layer 3 is set, water distribution layer 3 arranges biologic packing material immovable bed 4 below, biologic packing material immovable bed 4 arranges biologic packing material supporting layer 5 below, water-yielding stratum 6 is positioned at liquid level bottom, once oxidation district 13, water-yielding stratum 6 configures lifts hydrophone 8, aerator a7-1 is positioned at bottom once oxidation district 13, secondary oxidation district 14 is intake in top by act hydrophone 8, biologic packing material fluidised bed b2-2 is positioned at liquid level top, secondary oxidation district 14, weir flow sieve 9 is positioned at top, secondary oxidation district 14, aerator b7-2 is positioned at bottom secondary oxidation district 14, settling region 10 sieves 9 by weir flow and intakes in top, vent pipe 12 of purifying waste water is positioned at top, settling region 10, return line 11 is positioned at top, settling region 10 and is connected with once oxidation district 13, upflow tube 15 is positioned at top, once oxidation district 14, vapor pipe a16-1 is positioned at top, once oxidation district 13, vapor pipe b16-2 is positioned at top, secondary oxidation district 14, inspection port a17-1 is positioned at top, once oxidation district 13, inspection port b17-2 is positioned at top, secondary oxidation district 14, inspection port c17-3 is positioned at top, settling region 10.
Apparatus of the present invention shape is circular or square, and structure is steel or Steel Concrete.
Once oxidation district 13 of the present invention carries by lifting hydrophone 8 with secondary oxidation district liquid.
Apparatus of the present invention comprise once oxidation district, secondary oxidation district, settling region.When once oxidation district biologic packing material is flowing in aeration, the filler of floating attached microbial is moved freely along with the convolution inverting action of mixed solution, continuous renewal, sufficient bioelectric interface is provided, thus reach good wastewater treatment efficiency, bottom biologic packing material is fixedly biomembranous carrier, have the effect retaining suspended matter simultaneously concurrently, water quality treatment amount is improved.By lifting hydrophone, once oxidation district treatment solution is delivered to secondary oxidation district.When secondary oxidation district biologic packing material is flowing in aeration, grown biomembranous packing density because of close with water, filler relies on the stirring action of aeration, is in flow state.Sewage is contacted continually with the microbial film on filler, and filler cuts bubble in flow process, and make gas distribution more even, coefficient of oxygen utilization is improved.Treatment solution through the process of secondary oxidation district flows into settling region by weir flow sieve, discharges supernatant water through flat flow.Reaching in certain pollutants removal rate situation, the residence time of sewage in pond is shorter than traditional biological contact oxidation method, and meanwhile, the ability of anti impulsion load is strengthened.
Biologic packing material (flowing) layer well combines according to intrinsic advantage with biologic packing material (fixing) layer by the present invention, good treatment effect can be obtained in larger load range, capacity of resisting impact load is strong, filling ratio is easily selected, Selective filling ratio as required, meets water yield change requirement.
Accompanying drawing explanation
Fig. 1 process flow diagram
In figure: 1. water inlet pipe, 2-1. biologic packing material fluidised bed a, 2-2. biologic packing material fluidised bed b, 3. water distribution layer, 4. biologic packing material immovable 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 region, 11. return lines, 12. supernatant water vent pipes, 13. once oxidation districts, 14. secondary oxidation districts, 15. upflow tubes, 16-1. vapor pipe a, 16-2. vapor pipe b, 17-1. inspection port a, 17-2. inspection port b, 17-3. inspection port c.
Embodiment
Combined process schematic flow sheet specifically describes principle of the present invention, workflow and preferred forms:
Example 1:
In FIG, sanitary sewage flows into once oxidation district 13 through water inlet pipe 1, in once oxidation district 13 by aeration tube a7-1 aeration through combined bio filler fluidised bed a2-1 and biologic packing material immovable bed 4 bio-oxidation and Physical entrapment, collect in water-yielding stratum 6 and be delivered to secondary oxidation district 14 by act hydrophone 8, frequently contact bio-oxidation by aeration tube b7-2 aeration with biologic packing material fluidised bed b2-2 microbial film in secondary oxidation district 14 after, sieve 9 weir flows to settling region 10 through weir flow, discharged by supernatant water vent pipe 12 by flat flow.By lifting hydrophone 8 transport process treatment solution between once oxidation district 13 and secondary oxidation district 14, have liquid level difference, return line 11 is contour with supernatant water vent pipe 12, and part supernatant water is back to once oxidation district 13 and carries out nitration reaction.Upflow tube 15 is positioned at once oxidation district 13, and liquid level is lower than return line 11 liquid level.There are venting hole a16-1, venting hole b16-2 in once oxidation district 13, top, secondary oxidation district 14, and inspection port a 17-1, inspection port b17-2, inspection port c17-3 are arranged at once oxidation district 13, secondary oxidation district 14, top, settling region 10.This device shape is circular, and structure is steel.
Certain army's post sanitary sewage comprehensive treating process, when process sanitary sewage scale is 20 ton per day, after the technology of the present invention process, treatment effect is in table 1.Biochemical pretreatment unit water outlet BOD
5account for more than 82% at below 15mg/L, account for 68%, water outlet BOD at below 10mg/L
5substantially be all less than 20mg/L, SS water outlet is all less than 25mg/L.As can be seen here, after the technology of the present invention process, sewage discharge can meet the existing sewage drainage standard in Beijing.
Table 1 uses the clearance of biochemical sewage pretreatment unit after stain thing
| Analysis project | Water inlet | Water outlet | Clearance/% | Beijing's sewage discharge secondary limit value |
| PH value | 7.25 | 7.1 | ? | 6～9 |
| Colourity/degree | 52 | 1.0 | 98 | 50 |
| BOD 5/(mg/L) | 293 | 12.8 | 95.6 | 20 |
| SS/(mg/L) | 243 | 24 | 90.1 | 50 |
| Total plate count/(individual/mL) | 10 9 | 230 | 99.9 | - |
| Coliform number/(individual/L) | 10 4 | 70 | 99 | - |
Claims (3)
1. a biochemical sewage pretreatment unit, it is characterized in that this device comprises once oxidation district (13), secondary oxidation district (14), settling region (10), once oxidation district (13), secondary oxidation district (14), settling region (10) are connected as a single entity successively: once oxidation district (13) are connected by lifting hydrophone (8) with secondary oxidation district (14), secondary oxidation district (14) sieves (9) with settling region (10) by weir flow and is connected, and settling region (10) are connected by return line (11) with once oxidation district (13), sanitary sewage water inlet pipe (1) is positioned at once oxidation district (13) top, biologic packing material fluidised bed a (2-1) is positioned at once oxidation district (13) liquid level top, biofilter material fluidised bed a (2-1) arranges water distribution layer (3) below, water distribution layer (3) arranges biologic packing material immovable bed (4) below, biologic packing material immovable bed (4) arranges biologic packing material supporting layer (5) below, water-yielding stratum (6) is positioned at once oxidation district (13) liquid level bottom, hydrophone (8) is lifted in water-yielding stratum (6) configuration, aerator a (7-1) is positioned at bottom, once oxidation district (13), secondary oxidation district (14) is intake in top by act hydrophone (8), biologic packing material fluidised bed b (2-2) is positioned at secondary oxidation district (14) liquid level top, weir flow sieve (9) is positioned at secondary oxidation district (14) top, aerator b (7-2) is positioned at bottom, secondary oxidation district (14), settling region (10) sieves (9) by weir flow and intakes in top, vent pipe (12) of purifying waste water is positioned at settling region (10) top, return line (11) is positioned at settling region (10) top and is connected with once oxidation district (13), upflow tube (15) is positioned at once oxidation district (14) top, vapor pipe a (16-1) is positioned at once oxidation district (13) top, vapor pipe b (16-2) is positioned at secondary oxidation district (14) top, inspection port a (17-1) is positioned at once oxidation district (13) top, inspection port b (17-2) is positioned at secondary oxidation district (14) top, inspection port c (17-3) is positioned at settling region (10) top.
2. device according to claim 1, it is characterized in that this device shape is for circular or square, structure is steel or Steel Concrete.
3. device according to claim 1, is characterized in that once oxidation district (13) carries by lifting hydrophone (8) with secondary oxidation district liquid.
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 true CN104276718A (en) | 2015-01-14 |
| CN104276718B CN104276718B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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| CN104276718B (en) | 2017-02-22 |
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Granted publication date: 20170222 Termination date: 20200711 |
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