CN202322479U - Ceramsite filtering structure of sewage treatment biofilter - Google Patents
Ceramsite filtering structure of sewage treatment biofilter Download PDFInfo
- Publication number
- CN202322479U CN202322479U CN2011204330375U CN201120433037U CN202322479U CN 202322479 U CN202322479 U CN 202322479U CN 2011204330375 U CN2011204330375 U CN 2011204330375U CN 201120433037 U CN201120433037 U CN 201120433037U CN 202322479 U CN202322479 U CN 202322479U
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- China
- Prior art keywords
- filter
- filter material
- ceramsite
- ceramic grain
- material layer
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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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- Filtering Materials (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model relates to a ceramsite filtering structure of a sewage treatment biofilter, which is characterized in that two layers of ceramsite filter materials which is different in grain size are filled in a biofilter, a filtering member is arranged on the double layers of the filter materials, an aerating device is arranged below the double layers of filter materials, the junction between the upper filter material layer and the lower filter material layer is provided with an intermediate discharging pipe for discharging backflushing sewage, and the wall of the intermediate discharging pipe is provided with small holes; the upper filter material is a large-size ceramsite filter material which is used for improving the assimilative capacity of the filter and prolonging the cyclic operation time of the filter; and the lower filter material is a small-size ceramsite filter material which is used for increasing the specific surface area of the filter material, thereby improving the biomass liveweight of attached nitrobacterium and improving the ammonia-nitrogen removal rate. The large-size ceramsite filter material is shaped as a sphere or ellipse with the diameter of 10-15mm; and the small-size ceramsite filter material is shaped as sphere or ellipse with the diameter of 5-8mm. The ceramsite filtering structure disclosed by the utility model is applicable to the sewage treatment biofilter and has the advantages of reasonable structure design, low production cost, good operation effect, no toxic and harms and longer service life.
Description
Technical field
The utility model relates to a kind of waste disposal plant, specifically is a kind of ceramic grain filter structure that is used for the biological filter of WWT, this reasonable in design, and sewage treating efficiency is high, and is effective.
Technical background
Filter structure is the main and important component part of BAF; BAF has that effluent quality is good, hydraulic detention time is short, floor space is little, investment and working cost is low, capacity of resisting impact load strong and advantage such as convenient management; Be a kind of environmental protection, economy, efficient, energy-conservation WWT new technology; Renewable and the sustainable utilization of water resources be can realize, shortage of water resources, insufficient funds, the technological present situation that falls behind relatively that the wastewater treatment in China field is faced are very suitable for.As the filter structure that comprises biofilm carrier is the key element of BAF last effect, filter structure to microbial growth, important influence comes off.In China, BAF is in the popularization stage, and the research of filter structure will be the BAF key of widespread adoption at home.Therefore need constantly proposition reasonable in design, operational efficiency is high, the filter structure of effective biological tank.
The utility model content
The purpose of the utility model is in order to solve the problems of the technologies described above, to propose a kind of WWT biological filter ceramic grain filter structure, this reasonable in design, and production cost is low, last effect good, nontoxic, longer service life.
The purpose of the utility model realizes through following technical scheme: a kind of WWT biological filter ceramic grain filter structure; It is characterized in that: the different two-layer ceramic grain filter of filling particle diameter thickness in a biological filter, form upper and lower double-layer filter material layer, above the double-layer filter material layer filter membrane is set; The below is provided with aerating apparatus; Be positioned at the intersection of upper and lower filter material layer, the comb that is used for discharging backwash mud is being installed, opening aperture on the comb wall in this; The upper strata filtrate is the water environment capacity that is used to improve the filter tank, prolongs the big particle diameter ceramic grain filter of the periodic duty time in filter tank; Lower floor's filtrate is the specific surface area that is used to increase filtrate, thereby improves the nitrifier living weight that adheres to, and improves the small particle size ceramic grain filter of ammonia nitrogen removal frank.
Spheroidal or ellipse that said big particle diameter ceramic grain filter is diameter 10-15mm; Spheroidal or ellipse that said small particle size ceramic grain filter is diameter 5-8mm.
The ceramic grain filter that the utility model uses has overcome some defectives of domestic currently available products, and matter is hard, high-strength, corrosion-resistant, it is freezing to resist, and the filtrate of higher specific surface area and bigger voidage is arranged.Mainly form by dewatered sludge, coal ash, flyash, aluminium powder and clay.It compare with other haydites have the voidage height, specific surface area is high, characteristics high to the processing efficiency of waste water.Percentage of damage and wear rate sum are merely 1.5%, and filtrate has higher physical strength.
The filter structure of the utility model has good last effect: the denitrification filter pool starting period is shorter; It is 92% that denitrification filter pool is moved the 4th day nitrate nitrogen clearance; Nitrogen removal rate is 56.2%; The nitrate nitrogen clearance that moves the 7th day is 99.9%, and nitrogen removal rate is 92.7%, and denitrification filter pool gets into steady operation period; Use the denitrification filter pool of this filtrate, decubation is shorter after the back flushing.2 hours nitrate nitrogen clearances can reach 88.3% after denitrification filter pool carried out back flushing, returned to normal operation level, and clearance gets into the stable phase after 4 hours about 92%.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The profile of the utility model product does not receive the restriction of this figure, and only profile changes the protection domain that also belongs to the utility model.
Embodiment
The utility model is the explanation of into going up the step: embodiment below in conjunction with accompanying drawing and embodiment: referring to accompanying drawing, WWT biological filter ceramic grain filter structure, the different two-layer ceramic grain filter of filling particle diameter thickness in a biological filter 1; Form upper and lower double-layer filter material layer; Filter membrane 2 is set above the double-layer filter material layer, and the below is provided with aerating apparatus 6, is being positioned at the intersection of upper and lower filter material layer; Installation is used for discharging the comb 3 of backwash mud, opens aperture on the comb wall in this; Upper strata filtrate 4 prolongs the big particle diameter ceramic grain filter of the periodic duty time in filter tank for being used to improve the water environment capacity in filter tank; Lower floor's filtrate 5 is the specific surface area that is used to increase filtrate, thereby improves the nitrifier living weight that adheres to, and improves the small particle size ceramic grain filter of ammonia nitrogen removal frank.The spheroidal that said big particle diameter ceramic grain filter is diameter 13mm; Said small particle size ceramic grain filter is the spheroidal of diameter 6mm.
It below only is the embodiment of this patent; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of this patent.
Claims (2)
1. WWT biological filter ceramic grain filter structure; It is characterized in that: the different two-layer ceramic grain filter of filling particle diameter thickness in a biological filter (1), form upper and lower double-layer filter material layer, filter membrane (2) is set above the double-layer filter material layer; The below is provided with aerating apparatus (6); Be positioned at the intersection of upper and lower filter material layer, the comb (3) that is used for discharging backwash mud is being installed, opening aperture on the comb wall in this; Upper strata filtrate (4) prolongs the big particle diameter ceramic grain filter of the periodic duty time in filter tank for being used to improve the water environment capacity in filter tank; Lower floor's filtrate (5) is the specific surface area that is used to increase filtrate, thereby improves the nitrifier living weight that adheres to, and improves the small particle size ceramic grain filter of ammonia nitrogen removal frank.
2. biological filter according to claim 1 ceramic grain filter structure is characterized in that: spheroidal or ellipse that said big particle diameter ceramic grain filter is diameter 10-15mm; Spheroidal or ellipse that said small particle size ceramic grain filter is diameter 5-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204330375U CN202322479U (en) | 2011-11-04 | 2011-11-04 | Ceramsite filtering structure of sewage treatment biofilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204330375U CN202322479U (en) | 2011-11-04 | 2011-11-04 | Ceramsite filtering structure of sewage treatment biofilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322479U true CN202322479U (en) | 2012-07-11 |
Family
ID=46434469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204330375U Expired - Lifetime CN202322479U (en) | 2011-11-04 | 2011-11-04 | Ceramsite filtering structure of sewage treatment biofilter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833127A (en) * | 2012-11-26 | 2014-06-04 | 杨志勇 | Novel ammonia-nitrogen biologic processor |
-
2011
- 2011-11-04 CN CN2011204330375U patent/CN202322479U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833127A (en) * | 2012-11-26 | 2014-06-04 | 杨志勇 | Novel ammonia-nitrogen biologic processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING DRAINAGE EQUIPMENT CO., LTD. Free format text: FORMER NAME: BEIJING BAISHIYUAN ENVIRONMENT PROTECTION TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100016 Beijing City, Chaoyang District, WA No. 52 Jiuxianqiao sewage treatment plant office building 210 Patentee after: Beijing North row equipment industry company limited Address before: 100016 Beijing City, Chaoyang District, WA No. 52 Jiuxianqiao sewage treatment plant office building 210 Patentee before: Beijing Baishiyuan Environmental Protection Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |