CN107601659B - Reinforced ventilation grading drop oxygenation biofilter - Google Patents
Reinforced ventilation grading drop oxygenation biofilter Download PDFInfo
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- CN107601659B CN107601659B CN201710849213.5A CN201710849213A CN107601659B CN 107601659 B CN107601659 B CN 107601659B CN 201710849213 A CN201710849213 A CN 201710849213A CN 107601659 B CN107601659 B CN 107601659B
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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 utility model provides a forced draft is drop and is oxygenated biofilter in grades, includes biofilter, establishes the inlet tube on the biofilter, is provided with the water dart on the inlet tube, is provided with the ventilation pipe at biofilter's top, has set gradually including water distribution canal, drop board one, drop board II I, filler district, drop board II and delivery port from top to bottom. The main body of the invention adopts an A/O process, has a biological denitrification function, obviously improves the denitrification efficiency, changes natural ventilation into pipeline draft, improves the ventilation quantity, obviously improves the oxygenation efficiency and obviously improves the purification effect. The water distribution channel realizes uniform water distribution, graded water drop and graded water splash reflection depending on hydraulic conditions, so that water drops are finer and more dispersed, uniform water distribution is realized, and oxygenation efficiency can be improved. The method has the advantages of no breeding of mosquitoes and flies, improvement of surrounding environment, suitability for treatment of domestic sewage of villages and towns far away from municipal pipe networks, modular production, field installation, low capital cost and short construction period.
Description
Technical Field
The invention relates to an enhanced ventilation grading drop oxygenation biofilter.
Background
Along with the enlargement of the scale and the quantity of small and medium towns, the discharge amount of town sewage is continuously increased, sewage treatment facilities of villages and towns in counties and below are fewer, and in addition, the sewage treatment facilities are relatively low in economic level and weak in environmental protection consciousness, a large amount of resident sewage is directly discharged into the underground and lakes without being treated, so that the environment is seriously polluted, and therefore, facilities suitable for the treatment of domestic sewage of the villages and the towns are needed. The sewage is reused in agriculture, forestry, animal husbandry, fishery, industry and city or used as low impurity water after being processed by water quality to reach the water use standard. The sewage treatment can solve the problem of increasingly short water resources, reduce or eliminate environmental pollution and has obvious social, economic and environmental benefits.
The conventional sewage treatment method has the following problems
1. The treatment efficiency is low, the blockage is easy, mosquitoes and flies are bred, and the nitrification and denitrification function is not realized;
2. natural ventilation and oxygenation are performed, the oxygenation efficiency is low, the land surface land is occupied, and the occupied area is large;
3. the requirement on the concentration of a water inlet substrate is high, and the backflow function is not realized;
4. uniform water distribution is not easy to realize, a dead water area exists, and the volume utilization rate is low.
Disclosure of Invention
The purpose of the invention is: the enhanced ventilation grading drop oxygenation biofilter is convenient to operate and manage and suitable for treating domestic sewage of villages and towns far away from municipal pipe networks.
The technical scheme of the invention is as follows:
an intensified ventilation graded drop oxygenation biofilter comprises a biofilter, a water inlet pipe is arranged on the biofilter, and a water ejector is arranged on the water inlet pipe.
The top of the biological filter is provided with a vent pipe.
The biological filter is sequentially provided with a water distribution channel, a first water drop plate, a second water drop plate I, a filler area, a second water drop plate II and a water outlet from top to bottom.
The water inlet pipe is communicated with the water distribution channel through the water inlet groove.
At least two water distribution channels are arranged in the biological filter side by side, and the width of the water inlet channel is at least consistent with the vertical distance between the central lines of the two farthest water distribution channels.
The water distribution channel is a semicircular groove, horizontal overflow plates are symmetrically arranged at two ends of a semicircular diameter plane, and vertical buffer plates are perpendicularly arranged on the outer sides of the two horizontal overflow plates.
Drop board is gone up to open and is had a same rectangle node I, and drop board is gone up to open and is had a same rectangle node II, and I width of node is the same with the width of node II, and the width between two nodes I is greater than the width between two nodes II.
The filler area of the biological filter is filled with spherical filler, microorganisms are attached to the filler, and three sampling ports are arranged in the filler area at equal intervals from top to bottom.
An A/O process system containing an enhanced ventilation grading drop water oxygenation biofilter comprises an anoxic adjusting tank 1 at an A section and an O section enhanced ventilation grading drop water oxygenation biofilter communicated with the anoxic adjusting tank.
The oxygen deficiency equalizing basin comprises a water inlet and a circular base plate integrally connected with the water inlet, a spiral partition plate is arranged on the base plate and partitions the base plate into spiral galleries with the radius gradually reduced, and a sewage lifting pump communicated with the front end of the water ejector is arranged at the tail end of the oxygen deficiency equalizing basin.
The invention has the beneficial effects that: the main part adopts the AO technology, has biological denitrogenation function, and denitrogenation efficiency obviously improves, changes the pipeline into by natural draft and pulls out the wind, improves the air flow, and oxygenation efficiency obviously promotes, and purifying effect obviously improves. The water distribution channel realizes uniform water distribution, graded water drop and graded water splash reflection depending on hydraulic conditions, so that water drops are finer and more dispersed, uniform water distribution is realized, and oxygenation efficiency can be improved. The method has the advantages of no breeding of mosquitoes and flies, improvement of surrounding environment, suitability for treatment of domestic sewage of villages and towns far away from municipal pipe networks, modular production, field installation, low capital cost and short construction period.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic top view of the anoxic conditioning tank a according to the present invention.
FIG. 3 is a left side view of the structure of the O-stage biofilter according to the present invention.
Fig. 4 is a schematic structural view of the water distribution ditch of the present invention.
Fig. 5 is a schematic structural diagram of the drop plate of the present invention.
Detailed Description
As shown in figure 1, the enhanced ventilation graded drop water oxygenation biofilter comprises a biofilter 16, a water inlet pipe 8 is arranged on the biofilter 16, a water ejector 7 is arranged on the water inlet pipe 8, and the water ejector 7 has an oxygenation function.
The top of the biological filter 16 is provided with a ventilation pipe 17, which realizes the uniform water distribution and simultaneously realizes the enhanced ventilation and oxygenation through an exhaust fan, performs the wind-drawing ventilation of the pipeline and improves the ventilation capacity.
As shown in fig. 3, at least two water distribution channels 10 are arranged in the biological filter 16 side by side, the width of the water inlet channel 9 is at least consistent with the vertical distance between the center lines of the two farthest water distribution channels 10, the water inlet pipe 8 is communicated with the water distribution channels 10 through the water inlet channel 9, and after the water in the water inlet pipe 8 flows into the water inlet channel 9, the water inlet channel 9 is connected with the water distribution channels 10, and then flows into the two water distribution channels 10 through the water inlet channel 9.
As shown in fig. 4, the water distribution channel 10 is a semicircular groove, the two ends of the semicircular diameter plane are symmetrically provided with horizontal overflow plates 18, the outer sides of the two horizontal overflow plates 18 are vertically provided with vertical buffer plates 19, the water distribution channel 10 is set to be circular, a dead water area is not easy to exist, mosquitoes and flies are not bred, when the groove is filled with water, the water overflows from the horizontal overflow plates 18 on the two sides, the water distribution is uniform, and the vertical buffer plates 19 play a role in buffering water flow.
As shown in fig. 5, 8 identical rectangular nodes i 21 are arranged on the first drop plate 11, 16 identical rectangular nodes ii 22 are arranged on the second drop plate, the width of each node i 21 is identical to that of each node ii 22, the width between every two nodes i 21 is larger than that between every two nodes ii 22, the first drop plate 11 and the second drop plate i 12 form a two-stage drop, so that water flows are more fully contacted with oxygen, the second drop plate ii 14 plays a role in supporting a filler area, and the water flows out of the filler area, can flow out of the nodes of the drop plates and flow out of the water outlet 15 on the right side of the biological filter 16.
The device is provided with two oxygenation devices, wherein firstly, the water ejector is used for oxygenating, and the water pressure is increased by a sewage lifting pump for oxygenating; and secondly, the aeration of the enhanced ventilation drop is realized, the enhanced ventilation is realized while uniform water distribution is realized, the enhanced ventilation is pipeline draft ventilation, the ventilation quantity is improved by means of natural enhancement, and water drops are dispersed and refined by means of secondary drop and reflection, and are contacted with oxygen more fully. The arrangement not only improves the oxygenation efficiency, but also can reduce the floor area of the device.
The filler area 13 of the biofilter 16 is filled with spherical fillers, microorganisms are attached to the fillers, and the spherical inert fillers have large specific surface area, large biomass and good water permeability.
As shown in fig. 3, three sampling ports 20 are arranged in the area of the filling area 13 at equal intervals from top to bottom, and after water reaches the filling area, the purification effect is checked by taking out water from different sampling ports, so that the drop plate can be adjusted in time.
An A/O process system containing an enhanced ventilation graded drop water oxygenation biofilter is characterized in that an A/O process is adopted in a main body, the A/O process has a biological denitrification function, and the denitrification efficiency is obviously improved. The aeration-enhanced graded drop water oxygenation biofilter is an O section which is provided with a water distribution channel 10 and a graded drop water device, has the functions of uniformly distributing water and enhancing aeration-enhanced graded drop water oxygenation, and is large in specific surface area, large in biomass, good in water permeability and high in treatment efficiency.
As shown in fig. 1-2, the anoxic regulation tank 1 comprises a water inlet 2 and a circular base plate 3 integrally connected with the water inlet 2, a spiral gallery 5 is arranged on the base plate 3, sewage flows in the spiral gallery 5 in a plug-flow manner and reaches the tail end of the anoxic regulation tank 1 with the smallest radius, a sewage lifting pump 6 communicated with the front end of a water ejector 7 is arranged at the tail end of the anoxic regulation tank 1, and the sewage lifting pump 6 lifts the sewage to a biological filter 16.
The spiral partition plate 4 is arranged on the base plate 3, the base plate 3 is partitioned into a spiral gallery 5 with the radius gradually reduced, sewage runs in the anoxic adjusting tank 1 in a plug-flow mode, the water quantity can be adjusted by adjusting the reflux ratio, and the treatment efficiency is high.
In the using process of the invention, sewage is introduced into the water inlet 2 of the anoxic adjusting tank 1, the combined filler is used for preliminarily purifying the sewage, the sewage reaches the tail end of the anoxic adjusting tank 1 after flowing through the spiral gallery 5, is lifted into the water inlet pipe 8 of the biological filter 16 through the sewage lifting pump 6, is oxygenated by the lifted pressure when passing through the water ejector 7, is subjected to enhanced ventilation through the ventilation pipe 17 at the upper part of the biological filter 16 to improve the ventilation quantity, flows into the water inlet groove 9 in the water inlet pipe 8 and then is poured into the two water distribution channels 10, overflows from two sides after the semicircular water flow filled groove, is buffered by the vertical buffer plate 19 and then is remained on the drop plate, is subjected to secondary drop through the drop plate I11 and the drop plate II 12 to promote the dispersion and the refinement of water drops, is more fully contacted with oxygen, and falls out from the drop plate I12 and then enters the filler area 13, the purification is completed by the purification action of the microorganisms in the spherical filler and flows out of the water outlet 15, and a small amount of water is taken out from the sampling ports 20 at different positions on the side surface in the purification process to check the purification effect so as to make adjustment.
In order to control the water outlet reflux ratio and the water inlet amount at the water inlet 2 of the section A, a weir plate is arranged at the water outlet 15 of the biological filter 16, the weir plate is a cuboid water outlet groove, a movable baffle is arranged in the middle of the water outlet groove, water on one side of the baffle flows back by gravity, water on the other side flows out to control the water outlet reflux ratio, the water outlet regulation is realized by the weir plate, the reflux ratio is accurate, and the operability is strong.
Compared with the prior art, the invention has the following advantages:
1. the main process of the enhanced ventilation graded drop-aeration biological filter is an A/O process, has a biological denitrification function, and obviously improves the denitrification efficiency.
2. The oxygenation of the biological trickling filter is completely natural ventilation oxygenation, the oxygen charging amount is less and the oxygenation efficiency is low, the oxygenation of the water ejector and the oxygenation of the intensified ventilation drop are improved by the natural ventilation oxygenation after the device is improved, the oxygenation efficiency is obviously improved, and the purification effect is also obviously improved.
3. The water fed into the biological filter passes through the hydraulic water distribution device and the secondary water drop dispersion device, so that the oxygenation and uniform water distribution are realized, and the problem of uneven water distribution in the trickling filter is solved. The water distribution is even, the utilization rate of the filter volume is high, and the treatment efficiency is further improved.
4. Because the device is operated in a closed way, no dead water area exists, no mosquitoes and flies are bred, and the surrounding environment of the reinforced ventilation grading drop oxygenation biofilter is obviously improved.
5. The power equipment of the device is only one water pump, the operation cost is slightly increased, only 1.12 yuan is needed for treating 1 ton of water through accounting, and the operation cost is low.
6. The device has simple structure, convenient operation and management and is suitable for treating the domestic sewage in villages and towns far away from the municipal pipe network. The modular production, the field installation, the low capital cost and the short construction period can be realized.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (7)
1. The utility model provides an it oxygenates biological filter to strengthen hierarchical drop of ventilating, includes biological filter (16), establishes inlet tube (8) on biological filter (16), its characterized in that: a water ejector (7) is arranged on the water inlet pipe (8), and a ventilation pipe (17) is arranged at the top of the biological filter (16) for ventilating by draught of the pipeline; the biological filter is an O section, and the biological filter also comprises an anoxic adjusting tank (1) of an A section communicated with the O section biological filter, wherein the anoxic adjusting tank (1) comprises a water inlet (2) and a circular base plate (3) integrally connected with the water inlet (2), a spiral partition plate (4) is arranged on the base plate (3), the base plate (3) is partitioned into a spiral gallery (5) with the radius gradually reduced by the partition plate (4), and a sewage lifting pump (6) communicated with the front end of a water ejector (7) is arranged at the tail end of the anoxic adjusting tank (1); a weir plate is arranged at the water outlet (15) of the biological filter (16), the weir plate is a cuboid water outlet groove, a movable baffle plate is arranged in the middle of the water outlet groove, water on one side of the baffle plate flows back by gravity, and water on the other side flows out to control the water outlet reflux ratio; the oxygen deficiency regulating reservoir is internally provided with an elastic combined filler, a plurality of supports can be arranged and supported at the top of the gallery, the combined filler is hung on the supports, and microorganisms are attached to the filler.
2. The ventilation staged drop oxygenation biofilter of claim 1, wherein: the biological filter (16) is sequentially provided with a water distribution channel (10), a first water drop plate (11), a second water drop plate I (12), a filler area (13), a second water drop plate II (14) and a water outlet (15) from top to bottom.
3. The ventilation staged drop oxygenation biofilter of claim 1, wherein: the water inlet pipe (8) is communicated with the water distribution channel (10) through the water inlet groove (9).
4. The enhanced ventilation staged drop oxygenation biofilter of claim 1, wherein: at least two water distribution channels (10) are arranged in the biological filter (16) side by side, and the width of the water inlet groove (9) is at least consistent with the vertical distance between the central lines of the two water distribution channels (10) at the farthest.
5. The enhanced ventilation staged drop oxygenation biofilter of claim 3, wherein: the water distribution channel (10) is a semicircular groove, horizontal overflow plates (18) are symmetrically arranged at two ends of a semicircular diameter plane, and vertical buffer plates (19) are vertically arranged on the outer sides of the two horizontal overflow plates (18).
6. The enhanced ventilation staged drop oxygenation biofilter of claim 3, wherein: the first water dropping plate (11) is provided with a rectangular node I (21), the second water dropping plate is provided with a rectangular node II (22), the width of the node I (21) is the same as that of the node II (22), and the width between the two nodes I (21) is larger than that between the two nodes II (22).
7. The enhanced ventilation staged drop oxygenation biofilter of claim 3, wherein: the filler area (13) of the biofilter (16) is filled with spherical filler, and microorganisms are attached in the filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849213.5A CN107601659B (en) | 2017-09-20 | 2017-09-20 | Reinforced ventilation grading drop oxygenation biofilter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849213.5A CN107601659B (en) | 2017-09-20 | 2017-09-20 | Reinforced ventilation grading drop oxygenation biofilter |
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| Publication Number | Publication Date |
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| CN107601659A CN107601659A (en) | 2018-01-19 |
| CN107601659B true CN107601659B (en) | 2020-11-06 |
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| CN201710849213.5A Active CN107601659B (en) | 2017-09-20 | 2017-09-20 | Reinforced ventilation grading drop oxygenation biofilter |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109354158A (en) * | 2018-11-20 | 2019-02-19 | 上海择希环保工程有限公司 | Bio-trickling filter with denitrification functions |
| CN109502917A (en) * | 2018-12-25 | 2019-03-22 | 兰州交通大学 | A kind of residents underground powerless integration compound bio sewage-treatment plant and technique |
| CN110451645A (en) * | 2019-09-19 | 2019-11-15 | 境友环保科技（北京）有限公司 | A kind of municipal wastewater advanced treatment system and method |
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| CN1931743A (en) * | 2006-09-22 | 2007-03-21 | 东南大学 | Integral sputtering-oxygenating-biofiltering waste water purifying apparatus and process |
| CN101492211A (en) * | 2009-02-27 | 2009-07-29 | 山东大学 | Spiral type circular current sewage water flocculation pool |
| CN103159319A (en) * | 2013-03-22 | 2013-06-19 | 京东方科技集团股份有限公司 | Biofilter |
| CN203360231U (en) * | 2013-07-25 | 2013-12-25 | 陕西兴华环保科技有限公司 | Biological cascade nest |
| CN103833158A (en) * | 2012-11-23 | 2014-06-04 | 哈尔滨弘盛电力设备有限公司 | Lath type aeration oxidation device |
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- 2017-09-20 CN CN201710849213.5A patent/CN107601659B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931743A (en) * | 2006-09-22 | 2007-03-21 | 东南大学 | Integral sputtering-oxygenating-biofiltering waste water purifying apparatus and process |
| CN101492211A (en) * | 2009-02-27 | 2009-07-29 | 山东大学 | Spiral type circular current sewage water flocculation pool |
| CN103833158A (en) * | 2012-11-23 | 2014-06-04 | 哈尔滨弘盛电力设备有限公司 | Lath type aeration oxidation device |
| CN103159319A (en) * | 2013-03-22 | 2013-06-19 | 京东方科技集团股份有限公司 | Biofilter |
| CN203360231U (en) * | 2013-07-25 | 2013-12-25 | 陕西兴华环保科技有限公司 | Biological cascade nest |
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