CN205294949U - High -efficient bological aerated filter - Google Patents
High -efficient bological aerated filter Download PDFInfo
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- CN205294949U CN205294949U CN201620020029.0U CN201620020029U CN205294949U CN 205294949 U CN205294949 U CN 205294949U CN 201620020029 U CN201620020029 U CN 201620020029U CN 205294949 U CN205294949 U CN 205294949U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000000463 material Substances 0.000 claims abstract description 65
- 238000011001 backwashing Methods 0.000 claims description 22
- 238000005273 aeration Methods 0.000 claims description 6
- 210000005056 cell body Anatomy 0.000 claims 2
- 239000000706 filtrate Substances 0.000 claims 1
- 210000003437 trachea Anatomy 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 description 6
- 230000009466 transformation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000010918 textile wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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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
一种高效曝气生物滤池，主要包括池体、布水系统、布气系统、承托层、滤料层、清水区、超高区、反冲洗系统和出水系统，所述布水系统包括滤板、滤头和配水室，所述布气系统连接外部供气系统，所述反冲洗系统包括反洗气管和反洗水管，所述出水系统包括出水堰堰板、反冲洗排水槽、出水槽、出水管和反洗排水管，所述出水堰堰板设置多孔板，所述多孔板的高度等于或低于池体顶面。利用多孔板对滤料的隔离作用，滤料层的高度可相对增大0.2m至0.6m左右，从而达到高效利用滤池池体有效容积、增强污水生化处理、有效防止滤料流失的效果。
A high-efficiency biological aerated filter mainly includes a tank body, a water distribution system, an air distribution system, a supporting layer, a filter material layer, a clear water area, a super high area, a backwash system and a water outlet system. The water distribution system includes filter plate, filter head and water distribution chamber, the air distribution system is connected to an external air supply system, the backwash system includes backwash air pipes and backwash water pipes, and the water outlet system includes outlet weir plates, backwash drainage tanks, outlet The water tank, the outlet pipe and the backwash drain pipe, the weir plate of the outlet weir is provided with a porous plate, and the height of the porous plate is equal to or lower than the top surface of the pool body. Using the isolation effect of the porous plate on the filter material, the height of the filter material layer can be relatively increased by about 0.2m to 0.6m, so as to achieve efficient use of the effective volume of the filter tank, enhance the biochemical treatment of sewage, and effectively prevent the loss of filter material.
Description
技术领域 technical field
本实用新型属于污水处理技术领域，具体涉及一种高效曝气生物滤池。 The utility model belongs to the technical field of sewage treatment, in particular to a high-efficiency aerated biological filter.
背景技术 Background technique
现有曝气生物滤池是在生物接触氧化工艺的基础上引入饮用水处理中过滤的思想而产生的一种好氧废水处理工艺。曝气生物滤池内装填有高比表面积的颗粒滤料，以提供微生物膜生长的载体，污水由上向下或者由下往上流过滤料层，滤料层下部设有鼓风曝气，空气与污水逆向或同向接触，使污水中的有机物与滤料表面的生物膜发生生化反应得以降解，滤料同时起到物理过滤阻截作用。即一个曝气生物滤池可同时起到曝气池，二沉池和砂滤池的作用，所以曝气生物滤池后部不设沉淀池，通过气、水反冲洗再生实现滤池的周期运行。 The existing biological aerated filter is an aerobic wastewater treatment process based on the biological contact oxidation process and introducing the idea of filtration in drinking water treatment. The biological aerated filter is filled with granular filter material with a high specific surface area to provide a carrier for microbial film growth. The sewage flows through the filter material layer from top to bottom or from bottom to top. The lower part of the filter material layer is equipped with blast aeration, and the air Contact with the sewage in the opposite direction or in the same direction, so that the biochemical reaction between the organic matter in the sewage and the biofilm on the surface of the filter material can be degraded, and the filter material also plays a role of physical filtration and interception. That is to say, a biological aerated filter can act as an aeration tank, a secondary sedimentation tank and a sand filter at the same time, so there is no sedimentation tank at the rear of the biological aerated filter, and the cycle of the filter is realized by backwashing and regeneration of air and water run.
曝气生物滤池分为陶粒滤料滤池和轻质滤料滤池，本实用新型以陶粒滤料滤池为改进对象。 The biological aerated filter is divided into a ceramsite filter material filter and a lightweight filter material filter. The utility model takes the ceramsite filter material filter as the improvement object.
根据中国工程建设标准化协会标准《曝气生物滤池工程技术规程（CECS265-2009）》中曝气生物滤池工艺设计参数：陶粒滤料滤池的滤料层高度宜为2.5m至4.5m，清水区高度宜为1.0m至1.5m，超高区为0.5m。根据中国工程建设标准化协会标准《滤池气水冲洗设计规程（CECS50）》的有关冲洗水排除规定：冲洗时滤料层微膨胀的滤池，排水槽底面应高出滤料层表面的净高宜取100mm；冲洗时滤料层产生膨胀的滤池，其排水槽底面应高出膨胀后的层面100mm至150mm。此设计高度与出水堰堰板高度用于防止滤料流失。即清水区高度包括滤料膨胀高度和防滤料流失高度。防滤料流失高度不仅降低总体曝气生物滤池的滤料填充率，而且不能绝对有效的防止滤料流失。 According to the technical design parameters of biological aerated filter in the standard of China Engineering Construction Standardization Association "Technical Regulations for Biological Aerated Filter (CECS265-2009)", the height of the filter layer of the ceramsite filter should be 2.5m to 4.5m , the height of the clear water area should be 1.0m to 1.5m, and the superelevation area should be 0.5m. According to the relevant flushing water exclusion regulations of the China Engineering Construction Standardization Association standard "Filter Air-Water Flush Design Regulations (CECS50)": for filters with slight expansion of the filter layer during flushing, the bottom of the drainage tank should be higher than the net height of the surface of the filter layer It should be 100mm; the bottom of the drainage tank should be 100mm to 150mm higher than the expanded layer of the filter tank when the filter material layer expands during flushing. This design height and the weir plate height of the outlet weir are used to prevent the loss of filter material. That is, the height of the clean water area includes the height of filter material expansion and the height of filter material loss prevention. The anti-filter material loss height not only reduces the filter material filling rate of the overall biological aerated filter, but also cannot absolutely effectively prevent the filter material loss.
发明内容 Contents of the invention
本实用新型提供一种高效曝气生物滤池，作为传统陶粒滤料曝气生物滤池的一种改进，该高效曝气生物滤池相对于传统曝气生物滤池：清水区的高度减小，滤料层高度增加；能更高效利用池体有效容积，能防止滤料流失，对废水有机物的去除率更高。 The utility model provides a high-efficiency biological aerated filter as an improvement of the traditional biological aerated filter of ceramsite filter material. Compared with the traditional biological aerated filter, the height of the clear water area is reduced. Smaller, the height of the filter material layer is increased; the effective volume of the pool can be used more efficiently, the loss of filter material can be prevented, and the removal rate of organic matter in wastewater is higher.
本实用新型解决其技术问题所采用的技术方案是：一种高效曝气生物滤池包括池体、布水系统、布气系统、承托层、滤料层、清水区、超高区、反冲洗系统和出水系统，所述布水系统包括滤板、滤头和配水室，所述布气系统连接外部供气系统，所述反冲洗系统包括反洗气管和反洗水管，所述出水系统包括出水堰堰板、反冲洗排水槽、出水槽、出水管和反洗排水管，所述出水堰堰板设置多孔板，所述多孔板的高度等于或低于池体顶面。高效曝气生物滤池分为上向流和下向流两种。上向流高效曝气生物滤池对污水进行生化处理时，污水由底部进水管进入池体，由所述滤头流向所述承托层、所述滤料层，清水通过所述多孔板流到所述出水槽，经所述出水管流出。此过程所述布气系统进行鼓风曝气。运行一段时间后，需对所述高效曝气生物滤池进行反冲洗，以释放截留的悬浮物并更新生物膜。所述反冲洗系统开始工作，反洗气、反洗水经过所述滤头均匀布气布水反洗所述承托层、所述滤料层，所述滤料层膨胀至所述多孔板，所述多孔板隔离滤料，反洗水通过所述多孔板流到所述反冲洗排水槽，经所述反洗水排水管流出。下向流高效曝气生物滤池对污水进行生化处理时，污水由上方进水管进入池体，由所述滤料层流向所述承托层，由所述滤头进入所述配水室，最后经所述出水管排出。运行一段时间后，需对所述高效曝气生物滤池进行反冲洗，以释放截留的悬浮物并更新生物膜。所述反冲洗系统开始工作，反洗气、反洗水经过所述滤头均匀布气布水反洗所述承托层、所述滤料层，所述滤料层膨胀至所述多孔板，所述多孔板隔离滤料，反洗水通过所述多孔板流到所述反冲洗排水槽，经所述反洗水排水管流出。 The technical scheme adopted by the utility model to solve the technical problems is: a high-efficiency biological aerated filter includes a pool body, a water distribution system, an air distribution system, a supporting layer, a filter material layer, a clear water area, an ultra-high area, a reverse flushing system and water outlet system, the water distribution system includes a filter plate, a filter head and a water distribution chamber, the air distribution system is connected to an external air supply system, the backwash system includes a backwash air pipe and a backwash water pipe, and the water outlet system It includes a water outlet weir plate, a backwash drainage tank, a water outlet tank, an outlet pipe and a backwash drainage pipe. The water outlet weir plate is provided with a porous plate, and the height of the porous plate is equal to or lower than the top surface of the pool body. There are two types of high-efficiency biological aerated filters: upflow and downflow. When the upflow high-efficiency aerated biological filter performs biochemical treatment on sewage, the sewage enters the tank body from the bottom water inlet pipe, flows from the filter head to the supporting layer and the filter material layer, and clean water flows through the porous plate. to the water outlet tank and flow out through the water outlet pipe. The air distribution system described in this process performs blast aeration. After running for a period of time, the high-efficiency biological aerated filter needs to be backwashed to release the trapped suspended matter and renew the biofilm. The backwashing system starts to work, and the backwashing air and backwashing water pass through the filter head to evenly distribute air and water to backwash the supporting layer and the filter material layer, and the filter material layer expands to the porous plate , the porous plate isolates the filter material, the backwash water flows through the porous plate to the backwash drainage tank, and flows out through the backwash water drain pipe. When the downward flow high-efficiency aerated biological filter performs biochemical treatment on sewage, the sewage enters the tank body from the upper water inlet pipe, flows from the filter material layer to the supporting layer, enters the water distribution chamber from the filter head, and finally Discharge through the outlet pipe. After running for a period of time, the high-efficiency biological aerated filter needs to be backwashed to release the trapped suspended matter and renew the biofilm. The backwashing system starts to work, and the backwashing air and backwashing water pass through the filter head to evenly distribute air and water to backwash the supporting layer and the filter material layer, and the filter material layer expands to the porous plate , the porous plate isolates the filter material, the backwash water flows through the porous plate to the backwash drainage tank, and flows out through the backwash water drain pipe.
作为本实用新型所述的一种高效曝气生物滤池的一种改进，所述出水堰堰板设置多孔板，所述多孔板的孔径小于所述滤料层滤料的最小粒径，可有效隔离滤料随水流流失；所述多孔板的高度等于或低于池体顶面，有效避免污水漫过多孔板。 As an improvement of the high-efficiency biological aerated filter described in the utility model, the weir plate of the outlet weir is provided with a porous plate, and the aperture of the porous plate is smaller than the minimum particle size of the filter material of the filter material layer, which can Effectively isolate the filter material from being lost with the water flow; the height of the porous plate is equal to or lower than the top surface of the pool body, effectively preventing sewage from overflowing the porous plate.
作为本实用新型所述的一种高效曝气生物滤池的一种改进，所述滤料层反洗时的膨胀高度到达所述多孔板。同样的滤池池体，本实用新型的滤料层高度可增加0.2m至0.6m左右。 As an improvement of the high-efficiency biological aerated filter described in the utility model, the expansion height of the filter material layer reaches the porous plate during backwashing. For the same filter pool body, the height of the filter material layer of the present utility model can be increased by about 0.2m to 0.6m.
本实用新型的有益效果在于：提供一种高效曝气生物滤池，包括池体、布水系统、布气系统、承托层、滤料层、清水区、超高区、反冲洗系统和出水系统，所述布水系统包括滤板、滤头和配水室，所述布气系统连接外部供气系统，所述反冲洗系统包括反洗气管和反洗水管，所述出水系统包括出水堰堰板、反冲洗排水槽、出水槽、出水管和反洗排水管，所述出水堰堰板设置多孔板，所述多孔板的高度等于或低于池体顶面。利用多孔板对滤料的隔离作用，滤料层的高度可相对增大0.2m至0.6m左右，从而达到高效利用滤池池体有效容积、增强污水生化处理、有效防止滤料流失的效果。 The beneficial effects of the utility model are: to provide a high-efficiency biological aerated filter, including the tank body, water distribution system, gas distribution system, supporting layer, filter material layer, clear water area, super high area, backwashing system and water outlet system, the water distribution system includes a filter plate, a filter head and a water distribution chamber, the air distribution system is connected to an external air supply system, the backwash system includes a backwash air pipe and a backwash water pipe, and the water outlet system includes an outlet weir Plate, backwash drainage tank, water outlet tank, outlet pipe and backwash drainage pipe, the outlet weir weir plate is provided with a porous plate, and the height of the porous plate is equal to or lower than the top surface of the pool body. Utilizing the isolation effect of the porous plate on the filter material, the height of the filter material layer can be relatively increased by about 0.2m to 0.6m, so as to achieve efficient use of the effective volume of the filter tank, enhance the biochemical treatment of sewage, and effectively prevent the loss of filter material.
附图说明 Description of drawings
图1为本实用新型上向流高效曝气生物滤池的结构示意图。 Fig. 1 is a structural schematic diagram of an upflow high-efficiency biological aerated filter of the present invention.
图2为本实用新型下向流高效曝气生物滤池的结构示意图。 Fig. 2 is a structural schematic diagram of the downflow high-efficiency biological aerated filter of the present invention.
图中：1.超高区2.多孔板3.出水堰堰板4.清水区5.滤头6.滤板7.配水室8.进水管9.反冲洗排水槽10.出水槽11.出水管12.反洗排水管13.滤料层14.承托层15.布气系统16.反洗气管17.反洗水管。 In the figure: 1. Superelevation area 2. Porous plate 3. Outlet weir plate 4. Clean water area 5. Filter head 6. Filter plate 7. Water distribution chamber 8. Water inlet pipe 9. Backwash drainage tank 10. Outlet tank 11. Outlet pipe 12. Backwash drain pipe 13. Filter material layer 14. Supporting layer 15. Air distribution system 16. Backwash air pipe 17. Backwash water pipe.
具体实施方式 detailed description
下面将结合具体实施方式和说明书附图对本实用新型进一步详细说明。 The utility model will be further described in detail below in conjunction with the specific embodiments and the accompanying drawings.
实施方式示例一 Implementation Example 1
如图1所示，某食品公司的食品废水经过一级强化处理后，采用上向流高效曝气生物滤池进行二级处理。污水由底部进水管8进入池体，由所述滤头5流向所述承托层14、所述滤料层13，清水通过所述多孔板2流到所述出水槽10，经所述出水管11流出。此过程所述布气系统15进行鼓风曝气。运行一段时间后，需对所述高效曝气生物滤池进行反冲洗，以释放截留的悬浮物并更新生物膜。所述反冲洗系统开始工作，反洗气、反洗水经过所述滤头5均匀布气布水反洗所述承托层14、所述滤料层13，所述滤料层13膨胀至所述多孔板2，所述多孔板2隔离滤料，反洗水通过所述多孔板2流到所述反冲洗出水槽9，经所述反洗水排水管12流出。 As shown in Figure 1, after the food wastewater of a food company undergoes primary intensive treatment, it uses an upflow high-efficiency biological aerated filter for secondary treatment. Sewage enters the pool body from the water inlet pipe 8 at the bottom, flows from the filter head 5 to the supporting layer 14 and the filter material layer 13, and clean water flows to the outlet tank 10 through the porous plate 2, and passes through the outlet Water pipe 11 flows out. In this process, the air distribution system 15 performs blast aeration. After running for a period of time, the high-efficiency biological aerated filter needs to be backwashed to release the trapped suspended matter and renew the biofilm. The backwashing system starts to work, and the backwashing gas and backwashing water pass through the filter head 5 to evenly distribute air and water to backwash the supporting layer 14 and the filter material layer 13, and the filter material layer 13 expands to The porous plate 2 isolates the filter material, and the backwash water flows through the porous plate 2 to the backwash outlet tank 9 and flows out through the backwash water drain pipe 12 .
该食品废水原先采用传统曝气生物滤池进行二级处理，该滤池池体高度为5.8m，其中滤料层高度为2.6m，反洗时滤料膨胀率为30%左右，清水区高度为1.1m，超高区0.5m。该曝气生物滤池的有机物一周平均去除率为28%，反冲洗时偶尔发生滤料流失现象。后期改造为上向流高效曝气生物滤池进行二级处理，具体改造为：在出水堰的堰板设置多孔板，多孔板高达池体顶面；滤料层高度增大为3.0m，清水区高度减小为0.7m。改造后滤料层高度比原来增加15%，膨胀时高度到达超高区；改造后有机物一周平均去除率为31%，比原来增加11%，且再无滤料流失现象发生。 The food wastewater was originally treated by traditional biological aerated filter for secondary treatment. The height of the filter body is 5.8m, and the height of the filter material layer is 2.6m. The expansion rate of the filter material during backwashing is about 30%. 1.1m, super high area 0.5m. The average removal rate of organic matter in the biological aerated filter is 28% in one week, and the loss of filter material occurs occasionally during backwashing. In the later period, it was transformed into an upflow high-efficiency biological aerated filter for secondary treatment. The specific transformation was as follows: a porous plate was installed on the weir plate of the outlet weir, and the porous plate reached the top of the pool body; the height of the filter material layer was increased to 3.0m, and the clear water The zone height is reduced to 0.7m. After transformation, the height of the filter material layer increased by 15% compared with the original one, and the height reached the ultra-high area during expansion; after the transformation, the average removal rate of organic matter in one week was 31%, an increase of 11% compared with the original one, and there was no loss of filter material.
实施方式示例二 Implementation example two
如图2所示，某纺织品公司的生产废水经过一级强化处理后，采用下向流高效曝气生物滤池进行二级处理。污水由上方进水管8进入池体，由所述滤料层13流向所述承托层14、所述滤头5，进所述配水室7由所述出水管11排出。运行一段时间后，需对所述高效曝气生物滤池进行反冲洗，以释放截留的悬浮物并更新生物膜。所述反冲洗系统开始工作，反洗气、反洗水经过所述滤头5均匀布气布水反洗所述承托层14、所述滤料层13，所述滤料层13膨胀至所述多孔板2，所述多孔板2隔离滤料，反洗水通过所述多孔板2流到所述反冲洗排水槽9，经所述反洗水排水管12流出。 As shown in Figure 2, after the production wastewater of a textile company undergoes primary intensive treatment, it uses a downflow high-efficiency biological aerated filter for secondary treatment. Sewage enters the pool body from the upper water inlet pipe 8, flows from the filter material layer 13 to the supporting layer 14 and the filter head 5, enters the water distribution chamber 7, and is discharged from the water outlet pipe 11. After running for a period of time, the high-efficiency biological aerated filter needs to be backwashed to release the trapped suspended matter and renew the biofilm. The backwashing system starts to work, and the backwashing gas and backwashing water pass through the filter head 5 to evenly distribute air and water to backwash the supporting layer 14 and the filter material layer 13, and the filter material layer 13 expands to The porous plate 2 isolates the filter material, and the backwash water flows through the porous plate 2 to the backwash drainage tank 9 and flows out through the backwash water drain pipe 12 .
该纺织废水原先采用曝气生物滤池进行二级处理，该滤池池体高5.6m，其中滤料层高度2.5m，反冲洗时滤料膨胀率35%左右，清水区高度为1.1m,超高区高度为0.5m。该曝气生物滤池的有机物一周平均去除率为22%，反冲洗周期为24h，反冲洗时经常发生滤料流失现象。后期改造为下向流高效曝气生物滤池进行二级处理，具体改造为：在出水堰的堰板设置多孔板，多孔板高达池体顶面；滤料层高度增大为2.8m，清水区高度减小为0.9m。改造后再无滤料流失现象发生，改造后滤料层高度比原来增加12%，有机物一周平均去除率为24%，比原来增加9%。 The textile wastewater was originally treated by aerated biological filter for secondary treatment. The height of the filter is 5.6m, and the height of the filter material layer is 2.5m. The expansion rate of the filter material during backwashing is about 35%. The height of the high zone is 0.5m. The average removal rate of organic matter in the biological aerated filter is 22% in one week, and the backwashing period is 24 hours, and the loss of filter material often occurs during backwashing. In the later period, it was transformed into a downward-flowing high-efficiency aerated biological filter for secondary treatment. The specific transformation was as follows: a porous plate was installed on the weir plate of the outlet weir, and the porous plate reached the top of the pool body; the height of the filter material layer was increased to 2.8m, and the clear water The zone height is reduced to 0.9m. After the transformation, no loss of filter material occurred. After the transformation, the height of the filter layer increased by 12% compared with the original one, and the average removal rate of organic matter in one week was 24%, an increase of 9% compared with the original one.
与传统曝气生物滤池相比，本发明在出水堰的堰板上设置了多孔板，增大了滤料层的高度，达到高效利用滤池池体有效体积、增强污水生化处理、有效防止滤料流失的效果。 Compared with the traditional biological aerated filter, the present invention installs a porous plate on the weir plate of the outlet weir, which increases the height of the filter material layer, achieves efficient use of the effective volume of the filter tank, enhances the biochemical treatment of sewage, and effectively prevents The effect of filter material loss.
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| CN107055746A (en) * | 2017-05-04 | 2017-08-18 | 鞍钢集团工程技术有限公司 | A kind of efficient back-flushing method in biofilter |
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| CN108423804A (en) * | 2018-03-20 | 2018-08-21 | 鲁东大学 | A kind of iris type biological aerated filter |
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