CN206886804U - A kind of device for municipal sewage treatment - Google Patents
A kind of device for municipal sewage treatment Download PDFInfo
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- CN206886804U CN206886804U CN201720473903.0U CN201720473903U CN206886804U CN 206886804 U CN206886804 U CN 206886804U CN 201720473903 U CN201720473903 U CN 201720473903U CN 206886804 U CN206886804 U CN 206886804U
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- Prior art keywords
- clear water
- biofilter
- sewage
- water
- ultrafiltration apparatus
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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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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of device for municipal sewage treatment, including the biofilter of pipeline connection, dress pond, ultrafiltration apparatus and clear water reserviors successively；The delivery port of clear water reserviors respectively with biofilter delivery port and dress pond water inlet pipeline connection；When carrying out water process, sewage enters dress pond by biofilter, and the water filled in the sewage mixing clear water reserviors in pond enters back into ultrafiltration apparatus, finally enters clear water reserviors；When being backwashed, the water in clear water reserviors flows back into ultrafiltration apparatus, and the water in clear water reserviors flows back into biofilter, and the sewage after backwash is discharged into sewage conduct；Filtrate in the biofilter is oval haydite.The present apparatus has higher clearance, two level and tertiary treatment available for town sewage to pollutants such as COD.Meanwhile hollow-fibre ultrafiltration device is added, effluent quality can be further ensured that, effluent quality is reached Treated sewage reusing standard, while also greatlys save land use area.
Description
Technical field
It the utility model is related to a kind of device for municipal sewage treatment, especially city domestic sewage two level and three-level
Processing, belongs to environmental project water-treatment technology field.
Background technology
At present because a large amount of cities and towns in China are fast-developing, but supporting urban pipe network system and sewage disposal system are come relatively
Say and more fall behind, cause the indexs such as the ammonia nitrogens of many local urban wastewater treatments in China, total phosphorus, microorganism, heavy metal all to reach
Less than discharging standards.
BAF is after coagulation, and the biomembrane using in filter tank on filler is used as main processing list
Member, the ammonia nitrogen in sewage, phosphorus, organic matter etc. are handled, treatment mechanism is mainly biological oxidation, filtering retention, biology wadding
Solidifying and food chain classification predation four part composition, physics, chemistry, biological collective effect water purification, eliminates making for second pond
With greatling save floor space.
The filler of biofilter is the carrier of biomembrane, the performance of filler directly affect BAF performance and
Economic rationality, it is the element of most critical.Filler mainly has ceramic inorganic filler and organic filler at present.China's most study
For haydite, compared to organic filler, the main advantage of haydite is embodied in cheap, property, and stable easy in inactivation, set be not micro-
The advantages that biomass is big, biofilm is fast, oxygenation capacity is strong.But there is also proportion is larger, aeration demand is big, recoil for haydite simultaneously
Wash the shortcomings that frequent.
Hyperfiltration technique is this year to use more technology, and compared to traditional physical treatment method, there is filtering to imitate for ultrafiltration
Rate is high, and effluent quality is high, and the distinguishing features such as floor space is small, it has very high removal to organic matter, microorganism, heavy metal etc.
Rate, and its filter water can be used for the urban reclaimed waters such as industrial water, agricultural irrigation water, municipal Afforestation Landscape water, reclaimed water
A large amount of clear water are saved in reuse.
Utility model content
The purpose of this utility model is to provide a kind of city domestic sewage two level and the method and device of tertiary treatment, solved
The problem of certainly municipal sewage treatment is not up to standard, while a kind of method of Treated sewage reusing is provided, reusing for sewage is realized, is made up
The deficiency of existing process.
The technical solution of the utility model is as follows：
A kind of device for municipal sewage treatment, including the biofilter of pipeline connection, dress pond, ultrafiltration apparatus successively
And clear water reserviors；The delivery port of clear water reserviors respectively with biofilter delivery port and dress pond water inlet pipeline connection；When entering at water-filling
During reason, sewage enters dress pond by biofilter, and the water filled in the sewage mixing clear water reserviors in pond enters back into ultrafiltration apparatus,
Finally enter clear water reserviors；When being backwashed, the water in clear water reserviors flows back into ultrafiltration apparatus, and the water in clear water reserviors flows back into
Enter biofilter, the sewage after backwash is discharged into sewage conduct；Filtrate in the biofilter is oval haydite.
The ultrafiltration apparatus uses Kynoar PVDF hollow-fibre membranes.
The delivery port connection powder charge tank of the ultrafiltration apparatus, the medicament in powder charge tank are backwashed into ultrafiltration apparatus.
The clear water reserviors entrance connects clear water pipeline, is furnished with clear water buffer on clear water pipeline.
Filtrate in the biofilter is lotus pool bed mud, clay and the white clay in mass ratio 2 of dehydration 50%~60%:
1:The haydite of 1 mixing high temperature sintering ovalisation.Described high temperature is 800 DEG C.Al wherein in white clay2O3、Fe2O3Composition has
The porosity for adding haydite of effect, makes its porosity be up to 82%, while the raising of porosity substantially reduces the ratio of haydite
Weight, it reaches 0.98g/cm than Beijing South Maxpower Technology Co. Ltd3, the about proportion of water, this just makes filler to suspend in water in itself, reduces aeration quantity
And resistance to water-flow, specific surface area can be simultaneously reached 800cm2/ g, significantly increased relative to pure bed mud potting grain, this method
The oval haydite of preparation is due to containing aluminium and iron, causing filler surface positively charged, for improving the attached of microorganism and pollutant
The amount of wearing has obvious advantage.Haydite intensity made from three kinds of materials is larger simultaneously, and wear rate and percentage of damage are all close to zero.
Coagulation water enters biofilter from bottom, is the microbial layer of nature attachment on ceramics filling, outside is preferably
Oxygen animalcule, inside is anaerobe, realizes biological carbon and phosphorous removal simultaneously.The absorption of packed bed and crown_interception make dirt simultaneously
Most of particulate pollutant in water is trapped within filter bed space, realizes the retention to pollutant, is reduced water outlet SS, is finally led to
Cross backwash process to remove the solid pollutant of absorption from filter bed, can need not thus use second pond, save occupation of land
Area.Substantial amounts of der Pilz is also grown inside BAF simultaneously, these microorganisms not only can be also same with degradation of organic substances
When for the formation of biomembrane provide skeleton, form the network structure in filter bed space, enhance bioflocculation and filtering function,
Also improve the anti-reflective rinse capability of biomembrane.And the effect of biomembrane, solid retention time in reactor is set to stop with waterpower
Stay the time to realize separation, make filtration more obvious.
Secondary treated wastewater by biofiltration enters ultrafiltration apparatus, and ultrafiltration uses Kynoar PVDF doughnuts
Film, floor space is greatlyd save, and charged modification is carried out to it.After secondary treated wastewater passes through, the pollutant being retained down is in film
Surface forms one layer of filter layer, and pollutant is more efficiently retained so as to reach, because general organic matter all carries negative electrical charge,
It is charged that film can be made to have more efficient filter effect to natural organic matter.The salinity that ultrafiltration simultaneously can be effectively gone in water removal, counterweight
Metal etc. has good removal effect.The dirts such as the complicated organic matter and heavy metal that can not be degraded for previous step biofilter
Thing is contaminated, ultrafiltration can be very good to be filtered.
Ultrafiltration apparatus, while pipeline connection biofilter are flowed back into using the tertiary treatment water after ultrafiltration, for biology
The regular backwash in filter tank, takes full advantage of raw sewage, has saved substantial amounts of clear water.The delivery port connection water pipe of ultrafiltration apparatus
Road, for realizing the backwash of ultrafiltration apparatus.
Compared with existing urban sewage treatment technology, the utility model has the following advantages that：
(1) the higher and relative floor space of present treatment device treatment effect is smaller, more economizes on resources, dirty available for cities and towns
The two level of water and tertiary treatment.Biofilter is smaller compared to other two stage treatment installation areas, and the circulation profit of filler
With more having saved resource.The introducing of ultrafiltration apparatus is even more to greatly save land use area.Hollow Fiber Ultrafiltration dress simultaneously
Put, efficient filtering can be realized, effluent quality can be further ensured that, effluent quality is reached Treated sewage reusing standard.
(2) also without hyperfiltration technique is introduced, this patent introduces ultrafiltration, substantially increases processing for current municipal sewage treatment
The value of water afterwards, the water resource after this patent is handled can be directly used among urban afforestation and city cleaning, carry significantly
High water resource recycles efficiency.
(3) this patent proposes the combination of biofilter and ultrafiltration first, and anaerobe has good drop in biofilter
Solve the efficiency of inorganic matter, while adsorb suspended particulate, but hardly degraded organic substance is still handled it is bad, it is just mutual with combining ultrafiltration
Mend, ultrafiltration can remove the not treatable residual organic substances of biofilter institute, and biofilter can handle the suspension of interference ultrafiltration
Thing and inorganic matter, there is higher clearance to pollutants such as COD.
(4) filtrate in the utility model involved by biofilter is researched and developed for municipal sewage treatment biofilter, first
The mixing of secondary three kinds of lotus pool bed mud, clay and white clay raw materials using dehydration 50%~60%, has reached the cyclic utilization of waste
Purpose, while obtained filler has and than Beijing South Maxpower Technology Co. Ltd reaches 0.98g/cm3, specific surface area can be simultaneously reached 800cm2/ g, has
Very strong suspending power and adsorptivity.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device；The biofilter 3 of the 1 first pump 2 dress pump of pond 4 second 5 surpasses
Filter the pump of 9 powder charge tank 10 of the 3rd pump 7 clear water buffer, 8 clear water reserviors of device 6 the 4th.
Embodiment
The utility model is more specifically described in detail with reference to specific embodiment, but implementation of the present utility model
Mode not limited to this, for especially not dated technological parameter, it can refer to routine techniques progress.
Embodiment 1
As shown in figure 1, a kind of device for municipal sewage treatment, including the biofilter 2 of pipeline connection, dress water successively
Pond 3, ultrafiltration apparatus 5 and clear water reserviors 8；The delivery port of clear water reserviors 8 respectively with the delivery port of biofilter 2 and dress the water inlet pipe of pond 3
Road connects；The entrance of clear water reserviors 8 connects clear water pipeline, is furnished with clear water buffer 7 on clear water pipeline.When carrying out water process,
Sewage enters dress pond 3 by biofilter 2, and the water filled in the sewage mixing clear water reserviors 8 in pond 3 enters back into ultrafiltration apparatus 5,
Finally enter clear water reserviors 8.
The delivery port connection powder charge tank 9 of the ultrafiltration apparatus 5, when being backwashed, medicament and clear water in powder charge tank
Water in pond is backwashed into ultrafiltration apparatus.Water in clear water reserviors flows back into biofilter, while biofilter and super
The water inlet for filtering device respectively connects a sewage conduct, for backwashing wastewater is discharged into municipal sewage pipe network system.
The ultrafiltration apparatus uses Kynoar PVDF hollow-fibre membranes.Filtrate in the biofilter is dehydration
50%~60% lotus pool bed mud, clay and white clay in mass ratio 2:1:The pottery of 1 800 DEG C of high temperature sintering ovalisation of mixing
Grain.
The water inlet connection coagulation device of biofilter 2, water inlet conduit, biofilter and ultrafiltration in biofilter 2
The pipeline between pipeline, powder charge tank delivery port pipeline, clear water reserviors and biofilter between device installs the first pump 1, respectively
Two pumps 4, the 3rd pump 6, the 4th pump 10.When carrying out filter operation, open the first pump 1, the second pump 4, the 4th pump 10, sewage stream by
Pipeline enters biofilter, and current enter dress pond, then flow into ultrafiltration apparatus 5, finally flow into clear water reserviors 8.When being backwashed
During operation, the 3rd pump 6, the 4th pump 10 and clear water buffer 7 are opened, processing water is backwashed into biofilter 2, clear water
Backwashed by the delivery port mixed acid alkaline cleaner of ultrafiltration apparatus 5 into ultrafiltration apparatus 5, last rinse water is discharged into city dirt
Waterpipe.
The test of device is carried out using the municipal sewage that COD is 319mg/L, the utility model is being entered after preliminary sedimentation tank
Device, each pollutant concentration such as table 1 below after processing：
Table 1
As it appears from the above, biofilter is up to 81% to COD clearance, and individually the clearance of ultrafiltration apparatus is up to
90%；When biofilter is combined with ultrafiltration apparatus, the COD of final residual is only 1.2427mg/L (clearance is up to 97.9%),
Far smaller than municipal sewage coagulation standard (A standards are 50mg/L).And it is only 0.2mg/ in clear water BOD after treatment
L is much smaller than every Treated sewage reusing standard (minimum 10mg/L).So the processing mode has well for Treating Municipal Sewage
Removal effect, while also meet the standard of Treated sewage reusing.
By this method and inversion A2O and ultraviolet disinfection Combined Treatment are contrasted.The flow of wherein two stage treatment is scarce
Oxygen-anaerobic-aerobic-secondary precipitation, contrast find that the United Technologies of biofilter and ultrafiltration significantly improve filter effect,
Referring to table 2.
Table 2
Claims (4)
1. a kind of device for municipal sewage treatment, it is characterised in that the biofilter including pipeline connection successively, dress water
Pond, ultrafiltration apparatus and clear water reserviors；The delivery port of clear water reserviors respectively with biofilter delivery port and dress pond water inlet pipeline connection；
When carrying out water process, sewage enters dress pond by biofilter, and the water filled in the sewage mixing clear water reserviors in pond enters again
Enter ultrafiltration apparatus, finally enter clear water reserviors；When being backwashed, the water in clear water reserviors flows back into ultrafiltration apparatus, clear water reserviors
In water flow back into biofilter, the sewage after backwash is discharged into sewage conduct；Filtrate in the biofilter is ellipse
The haydite of shape.
2. device according to claim 1, it is characterised in that the ultrafiltration apparatus uses the hollow fibres of Kynoar PVDF
Tie up film.
3. device according to claim 2, it is characterised in that the delivery port connection powder charge tank of the ultrafiltration apparatus, powder charge
Medicament in tank is backwashed into ultrafiltration apparatus.
4. according to the device described in claim 1 or 2 or 3, it is characterised in that the clear water reserviors entrance connects clear water pipeline, clearly
It is furnished with clear water buffer in water lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720473903.0U CN206886804U (en) | 2017-04-28 | 2017-04-28 | A kind of device for municipal sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720473903.0U CN206886804U (en) | 2017-04-28 | 2017-04-28 | A kind of device for municipal sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206886804U true CN206886804U (en) | 2018-01-16 |
Family
ID=61341233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720473903.0U Active CN206886804U (en) | 2017-04-28 | 2017-04-28 | A kind of device for municipal sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206886804U (en) |
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2017
- 2017-04-28 CN CN201720473903.0U patent/CN206886804U/en active Active
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