CN1246233C - Vertical deflector combined Filtration type dephosphorization and nitrogen rejection facility - Google Patents
Vertical deflector combined Filtration type dephosphorization and nitrogen rejection facility Download PDFInfo
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- CN1246233C CN1246233C CNB2004100221532A CN200410022153A CN1246233C CN 1246233 C CN1246233 C CN 1246233C CN B2004100221532 A CNB2004100221532 A CN B2004100221532A CN 200410022153 A CN200410022153 A CN 200410022153A CN 1246233 C CN1246233 C CN 1246233C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The present invention relates to a vertical flow reversion composite filtration style phosphorus and decarbonizing device which comprises at least two single filter ponds which are mutually communicated, a water inlet pipe communicated with the first single filter pond and a water outlet pipe communicated with the last single filter. Clapboards are adopted to compart the single filter ponds in an upper and lower interlacement mode, and upper flow reversion channels and lower flow reversion channels of sewage are reserved. The bottoms of the two single filter ponds are provided with mud collecting buckets and mud discharging pipes, and the middle parts are provided with filler layers whose fillers are anaerobic fillers, aerobic fillers or iron-rich fillers, at least two kinds of fillers are assembled, matched and respectively loaded in the filter ponds, and each filter pond is loaded with one kind of filler to form different functional areas. The device ensures process length required by the treatment by designing a sewage upper and lower flow reversion structure and adapts to the requirements of various kinds of water by the assembling and the matching of multiple fillers, so that the treating efficiency of the device is enhanced, the running period of the device is prolonged, the energy consumption is reduced, the phosphorus and the nitrogen are removed effectively and the stable sewage treating effect is obtained.
Description
Technical field:
The invention belongs to sewage disposal, environmental protection technical field, be specifically related to a kind of vertical baffling combination filtering type dephosphorization denitrogenation device.
Background technology:
Look into newly by science and technology, do not see report at present both at home and abroad as yet relevant for the vertical baffling combination filtering type dephosphorization denitrogenation device of sewage disposal.Existing filtration unit mostly is single upward flow and following pattern to stream.In sewage disposal technology, to compare with activated sludge process, BAF has characteristics such as floor space is little, initial cost province, processing efficiency height, convenient management.But there is defective in traditional BAF structure design, stop up easily, to having relatively high expectations of water inlet suspended substance, the cycle of operation is short, general 1～2d just need carry out back flushing, and sewage enters the filter tank and need promote higher height, and energy consumption is higher, these problems cause working cost to raise, management inconvenience.In addition, traditional BAF is not reasonably selected on the distribution layout of filler and is made up, because in the sewage disposal, the realization of functions such as carbonization, nitrated, denitrification, dephosphorization is not quite similar to packing property, pollutant load, the isoparametric requirement of aeration, traditional BAF is difficult in and realizes dephosphorization denitrogenation function efficiently in the same pond, is difficult to reach emission standard.Generally have only by further chemical precipitation dephosphorization, and chemical precipitation need add the precipitation by metallic ion agent, medicament expense is with higher, and may cause effluent color dilution to increase owing to kish ionic concn (as iron ion) is higher, and these chemical dephosphorization technologies need more mechanical means, operational administrative complexity, so facility investment and working cost are higher.
These shortcomings have directly restricted the widespread use of BAF in sewage treatment area just.
Summary of the invention:
The present invention is in order to overcome the above-mentioned shortcoming that traditional BAF exists, designed a kind of vertical baffling combination filtering type dephosphorization denitrogenation device, can guarantee to handle required flow process length by baffling about the sewage, combination collocation by multiple filler adapts to various requirements in water quality, improve the processing efficiency of device, the extension fixture cycle of operation, cut down the consumption of energy, realize highly effective dephosphorizing denitrification, obtain stable wastewater treatment efficiency.
Technical scheme of the present invention is as follows:
Vertical baffling combination filtering type dephosphorization denitrogenation device, it comprises at least two single filter tanks that are interconnected, the water inlet pipe that is communicated with first single filter tank and the rising pipe that is communicated with the most last single filter tank.Be characterized in adopting between each single filter tank dividing plate to interlock up and down and separate, and reserve staggered up and down sewage baffling passage, the bottom in single filter tank is sludge hopper and shore pipe, and packing layer is established at the middle part.Such structure design can make the up and down baffling packing layer of flowing through of sewage, handle by the microbial film of filling surface, and the accompanied by physical chemical process is purified sewage.
The filler of this device adopts the homogeneous filler or along the descending filler of sewage flow process size grading, can bring into play the effect that suspended substance is held back in whole filter tank.
This device can require the difference in functionality district can be set flexibly according to water conditioning, and as two zoning branches: anaerobic zone, aerobic zone, three zoning branches: anaerobic zone, aerobic zone, dephosphorization district, perhaps anaerobic zone, aerobic zone are alternately and the multi-region in dephosphorization district arranged.Described filler can be selected anaerobism filler, aerobic filler or rich iron filler for use, need be divided in each filtering basin by at least two kinds of combination collocations, and what adorn in the filter tank of each functional zone is a kind of filler.For example, if be provided with two functional zone, can adorn anaerobism filler, aerobic filler successively, if three functional zone are arranged, can adorn anaerobism filler, aerobic filler, rich iron filler successively, if anaerobic-aerobic alternately, and the multi-functional district of filtering type chemical dephosphorization arranged, can as required above-mentioned filler be contained in the filter tank of each functional zone, this sampling device just is formed with different functional zone as required, and has loaded dissimilar fillers in the difference in functionality district.Anaerobic zone is loaded the anaerobism filler, and sewage enters anaerobic zone, and organic pollutant wherein is able to hydrolysis under the anaerobe membrane interaction.Aerobic zone is loaded aerobic filler, major function is to make the further biological degradation of organic pollutant, and carry out the nitrification and denitrification biological denitrificaion, remove this being to make the further biological degradation of organic pollutant, and carry out the nitrification and denitrification biological denitrificaion, in addition, this filler also has physical chemistry to remove the ammonia effect.Filter the dephosphorization district and load rich iron packing layer 0.1～1.0m, mainly come dephosphorization by chemical precipitation, because the catalytic oxidation effect, superfluous iron ion can be converted into ferric hydroxide precipitate and remove, and can play throwing out simultaneously.Certainly this device also can require to increase or reduce functional zone according to water conditioning, to reach the efficient purpose that purifies of dephosphorization denitrogenation.
The anaerobism filler that this device adopted is the anaerobism catalytic filler; Aerobic filler can use zeolite, haydite, coke, gac, quartz sand, aerobic catalytic filler; Rich iron filler comprises sponge iron, iron filings, slag, and this type of rich iron material mixes with certain proportion with the anti-compaction material, is seated in the filter tank of the postmedian in the whole device.
This device is provided with aerator at the lower position of the filter tank packing layer that is filled with aerobic filler or rich iron filler, is beneficial to provide sufficient oxygen.This device also is provided with the back flushing water inlet pipe in each bottom, single-filtering pond, and top is provided with the back flushing rising pipe, can carry out back flushing to the filter tank.Especially after filtering the decrease in efficiency of dephosphorization district filler, available combined water and air backwash method is regenerated, and peels off the throw out of the rich iron filling surface of porous by violent air water souring.
The advantage of this device is as follows:
1. device has adopted unique baffling structure design, under the condition that does not increase the device height, can guarantee thickness of filter bed, simultaneously by sewage up and down baffling can guarantee to handle required flow process length, stable and reliable operation, treatment effect are good.
2. device adopts unique baffling structure design, can suitably reduce the filter tank height by baffling about the sewage and promote energy consumption to reduce sewage.
3. the water environment capacity of filtering layer is strong in the device, the cycle of operation is longer: from single pond that intakes to the single pond of water outlet, adopt descending filler or the homogeneous filler of particle diameter, improved the water environment capacity of filtering layer, reduced requirement to the water inlet suspended substance, prolong the filter tank cycle of operation, saved backwash water amount and energy consumption.
4. on each single filter tank, the back flushing water inlet pipe and water outlet pipe is set,, reduces the back flushing frequency, can alleviate impact, thereby improve the removal effect of ammonia nitrogen and total nitrogen, can save the backwash water amount again generation cycle long nitrifier etc. to not susceptible to plugging rear end Dan Chi.
5. the filler of this device by different qualities is used in combination, in same device, can form the difference in functionality district, be not subjected to load respectively by function in the different single ponds of restriction of filler type and grating the filler of different qualities, can adopt anaerobism filler, aerobic zone to adopt as anaerobic zone and be suitable for the aerobic filler of nitrobacteria and denitrifying bacterium growth, and need not adopt multilayer filter tank form.Different filler combination are used different microorganisms is grown under self optimal environmental condition, avoid multiple microorganism vying each other, suppressing in a pond, influence the removal effect of nitrogen phosphorus.Can adopt anaerobism filler, aerobic zone to adopt as anaerobic zone and be suitable for the aerobic filler that heterotrophic bacterium, nitrobacteria and denitrifying bacterium grow, filter the dephosphorization district and load rich iron filler, make organism in the sewage, nitrogen phosphorus obtain close-coupled processing.
6. biological dephosphorize denitrification and physico-chemical process are removed the organic assembling of phosphorus and ammonia nitrogen, make nitrogen phosphorus remove efficient height, stable and reliable operation: owing to be provided with anaerobism, aerobic environment in device, therefore, this device has certain biological phosphate-eliminating effect; Filter the dephosphorization district and load rich iron filler, combine the formation precipitation with phosphate radical owing to slowly generate iron ion or ironic hydroxide, thereby phosphorus is had good effect of removing, belong to chemical dephosphorization.The microbial film on the aerobic catalytic filler of aerobic zone surface has good biological nitration and denitrogenation and physical chemistry to remove the ammonia effect.Therefore, whole device has been realized the organic assembling of biological dephosphorize denitrification and physico-chemical process removal phosphorus and ammonia nitrogen.
7. facility investment and working cost are low, operational management is convenient, integrated degree is high: because this device adopts the filtering type dephosphorization denitrogenation, consistent with the BAF operation scheme, be implemented in and finish organic matter degradation, dephosphorization denitrogenation in the same filter tank, it is close-coupled processing that sewage is obtained, and operational management is convenient; And the filtering type dephosphorization is compared with adding the precipitation by metallic ion agent, does not need administration apparatus and metering outfit, and rich iron filler adopts the combined water and air backwash method to regenerate, and does not need chemical agent regeneration, so facility investment and working cost are low.
This device can reach GB18918-2002 sewage discharge primary standard by middle trial run to municipal sewage treatment, and the cycle of operation can reach 7～10d simultaneously, compares at least with traditional BAF and can save backwash water 50%, stable and reliable operation.
Description of drawings:
Fig. 1 is the plane structure chart of this device;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the synoptic diagram that this device is realized the current baffling.
Embodiment
Referring to Fig. 1,2 and Fig. 3, five relatively independent, be interconnected 5 the single filter tanks 1 of this device main body for being divided into by dividing plate adopt between each single filter tank that dividing plate 2 is staggered up and down to be separated, and reserve sewage baffling passage up and down, see shown in the arrow among Fig. 4.Water inlet pipe 3 connects first single filter tank, the rising pipe 4 that the most last single filter tank is communicated with.Each bottom, single filter tank is provided with sludge hopper 5 and shore pipe 6, also is provided with back flushing water inlet pipe 7 in each bottom, single filter tank simultaneously, and (two single ponds that the bottom is communicated with are closed and are established a sludge hopper and a back flushing water inlet pipe), back flushing rising pipe 8 is arranged at top.There is packing layer at each middle part, single filter tank, and anaerobism filler a is housed in first single filter tank, and that adorn in second and third single filter tank is aerobic filler b, adorns in the 4th single filter tank in rich iron filler c, the 5th single filter tank and installs oxygen filler b.Just form alternative anaerobic zone A, aerobic zone B in this sampling device and filtered dephosphorization district C.Anaerobic zone mainly to organic pollutant obtain anaerobic hydrolysis, discharge phosphorus, partial organic substances is able to ammonification simultaneously; Aerobic zone mainly to the further oxygenolysis of organic pollutant, absorb phosphorus, and carry out the nitrification and denitrification denitrogenation; The dephosphorization district is by chemical reaction and filteration dephosphorization.For environment that growth of aerobic microorganisms is provided and the carrying out that promote biochemical reaction improving dephosphorization and denitrification effect, this device second and third, aerobic filler and Fu Tie filler lower position outfit aerator 9 in four, five single filter tanks.
The main technical details of this device
The residence time: ask when always stopping: 6～9 hours, wherein: anaerobic zone 1～3 hour, aerobic zone 4～6 hours, dephosphorization district 1～2 hour
Gas-water ratio: total gas-water ratio 6: 1 to 12: 1, dephosphorization district gas-water ratio 3: 1 to 7: 1
Structural parameter:
Vertical baffling BAF length L (m);
Single pond length: L
1=L/n
Wherein: the single pond of n-number
Vertical baffling BAF width B=(nQ)/(LTv) (m)
Wherein: Q-handles the water yield T-cycle of operation
The v-filtration velocity
Vertical baffling BAF height H=H
a+ H
b+ H
c+ H
d(m)
Wherein: single pond bed stuffing height H
a(m) packing layer top average depth H
b(m)
Filtering layer protection height H
c(m) bottom sludge hopper height H
d(m)
Packing material size: the filter tank front end adopts 15～20mm
8～12mm is adopted at the middle part, filter tank
5～8mm is adopted in the rear end, filter tank
The filler type: anaerobic zone adopts anaerobism filler, particle diameter: 3～30mm
Aerobic zone adopts aerobic filler, particle diameter: 3～15mm
The dephosphorization district adopts rich iron filler, particle diameter: 3～30mm
Claims (5)
1, vertical baffling combination filtering type dephosphorization denitrogenation device, comprise at least two single filter tanks that are interconnected, the water inlet pipe that is communicated with first single filter tank and the rising pipe that is communicated with the most last single filter tank, it is characterized in that: adopt dividing plate to interlock up and down between each single filter tank and separate, and reserve sewage baffling passage up and down; The bottom in single filter tank is sludge hopper and shore pipe, and packing layer is established at the middle part; The filler of packing layer is respectively anaerobism filler, aerobic filler and Fu Tie filler, is divided in each single filter tank, and what adorn in each filter tank is a kind of filler, forms different functional zone, is respectively anaerobic zone, aerobic zone and dephosphorization district.
2, according to the described dephosphorization denitrogenation device of claim 1, it is characterized in that: the filler of described packing layer adopts homogeneous filler or descending along sewage flow process packing material size grating.
3, according to claim 1 or 2 described dephosphorization denitrogenation devices, it is characterized in that: rich iron filler comprises sponge iron, iron filings, slag, is seated in single filter tank in whole device postmedian dephosphorization district.
4, according to claim 1 or 2 described dephosphorization denitrogenation devices, it is characterized in that: the lower position at the filter tank packing layer that is filled with rich iron filler is provided with aerator.
5, according to the described dephosphorization denitrogenation device of claim 1, it is characterized in that: the bottom, two single filter tanks that single filter tank or bottom are communicated with is provided with the back flushing water inlet pipe, and top is provided with the back flushing rising pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100221532A CN1246233C (en) | 2004-03-26 | 2004-03-26 | Vertical deflector combined Filtration type dephosphorization and nitrogen rejection facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100221532A CN1246233C (en) | 2004-03-26 | 2004-03-26 | Vertical deflector combined Filtration type dephosphorization and nitrogen rejection facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562802A CN1562802A (en) | 2005-01-12 |
| CN1246233C true CN1246233C (en) | 2006-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100221532A Expired - Fee Related CN1246233C (en) | 2004-03-26 | 2004-03-26 | Vertical deflector combined Filtration type dephosphorization and nitrogen rejection facility |
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| CN (1) | CN1246233C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167424B (en) * | 2011-01-21 | 2012-10-17 | 重庆大学 | U-shaped flow treatment method for saliferous hardly degraded organic wastewater |
| CN102515426A (en) * | 2011-12-07 | 2012-06-27 | 浙江省环境保护科学设计研究院 | Anaerobic hydrolysis system for treating biorefractory waste water and anaerobic hydrolysis technology adopting the anaerobic hydrolysis system |
| CN105399202A (en) * | 2015-12-29 | 2016-03-16 | 北京工业大学 | Method for removing phosphorous based on high-efficiency promotion of spongy iron corrosion in process of nitrogen removal by denitrification |
| CN107572722A (en) * | 2017-09-21 | 2018-01-12 | 北京协同创新研究院 | A kind of water purification system and purification method |
| CN111039469A (en) * | 2020-01-06 | 2020-04-21 | 湖南泰瑞医疗科技有限公司 | Medical sewage treatment integration equipment |
| CN113354209A (en) * | 2021-06-22 | 2021-09-07 | 安徽中环环保科技股份有限公司 | Rural domestic sewage integrated advanced treatment device and sewage treatment method |
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2004
- 2004-03-26 CN CNB2004100221532A patent/CN1246233C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1562802A (en) | 2005-01-12 |
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Granted publication date: 20060322 Termination date: 20190326 |