CN102101736A - Sewage treatment system based on artificially intensified ecological filtering bed and application of sewage treatment system - Google Patents
Sewage treatment system based on artificially intensified ecological filtering bed and application of sewage treatment system Download PDFInfo
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- CN102101736A CN102101736A CN2009102485453A CN200910248545A CN102101736A CN 102101736 A CN102101736 A CN 102101736A CN 2009102485453 A CN2009102485453 A CN 2009102485453A CN 200910248545 A CN200910248545 A CN 200910248545A CN 102101736 A CN102101736 A CN 102101736A
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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 invention relates to a sewage treatment system based on an artificially intensified ecological filtering bed and application of the sewage treatment system. The sewage treatment system consists of grids, an oxygen-enriched pool, an ecological filtration bed, oxygen-enriched plants, an aeration system, a variable water level regulation system and a water collection canal, wherein the bottoms of the oxygen-enriched pool and the ecological filtration bed are respectively provided with an aeration pipe connected with a fan and ecological padding with the inner filling diameter of the ecological filtration bed of 8-16 cm; and the variable water level regulation system in the water collection pool can regulate the water conservancy load of the filtering bed. By using the sewage treatment device designed by the invention, an aerobic area and an aerobic area are formed in the same filtration bed through opening and closing of the aeration pipe, nitrifying and denitrifying processes are completed in the same filtration bed, thus the sewage treatment device has an efficient denitrification capability. According to the invention, oxygen-enrichment is carried out through a root system of a plant, and energy consumption and back wash frequency are greatly reduced while forming an efficient denitrification capability.
Description
Technical field
The present invention relates to sewage disposal, be specifically related to a kind of ecological filter bed Sewage treatment systems of artificial-strengthening and application that is used in the less energy-consumption under the various weather condition.
Background technology
In recent years, fast development along with China township and village enterprises and intensive culture industry, a large amount of industry, agricultural and sanitary sewage directly enter the river course without any processing, the water surrounding in river course, rural area has been subjected to serious pollution and destruction, contaminated river channel sedimentation, water body is muddy even appearance often is black smelly, and its function as life and process water water source of polluted river completely loses.Ecological filter bed is a traditional wastewater treatment unit, has the low characteristics of the cost that puts into operation, but its common form is single anaerobism or aerobic form, denitrogenation effectively, and its aerobic form often energy consumption is higher, ecological inaccurate coordination.
Summary of the invention
At the shortcoming of prior art, the objective of the invention is to design the novel ecological filter bed Sewage treatment systems and the application thereof of the artificial-strengthening that a kind of technological process is simple relatively, degradation rate is high, capacity of resisting impact load is strong, energy consumption is low, ecological Harmony is good.
For achieving the above object, the technical solution used in the present invention is:
The ecological filter bed Sewage treatment systems of a kind of artificial-strengthening, by the drainage flow direction, ecological filter bed by the reoxygenation pond, the artificial-strengthening that are interconnected successively, braiding channel is formed;
Be provided with water-in on top, described reoxygenation pond, be provided with grid in the water inlet in reoxygenation pond;
Between reoxygenation pond and artificial-strengthening are ecological filter bed, be provided with overflow wall, overflow wall from top to bottom between across being equipped with the hole that penetrates body of wall, make that reoxygenation pond and artificial-strengthening are ecological filter bed to be connected;
Be provided with aeration tube in reoxygenation pond and the ecological filter bed bottom of artificial-strengthening, have aperture on the aeration tube, aeration tube links to each other with blower fan by pipeline;
Tamped density is the filler of 8mm～16mm greater than 1 diameter in artificial-strengthening is ecological filter bed, and the filler top is equipped with the turfy soil of the 100mm thickness that is used for Winter protection, plant on the turfy soil and be implanted with waterplant,
Be provided with dividing plate at artificial-strengthening between ecological filter bed and braiding channel, be provided with pipeline in the bottom of dividing plate; One end of pipeline directly feeds the ecological filter bed bottom of artificial-strengthening, the other end of pipeline stretches in the braiding channel, being in pipeline in the braiding channel extends upward from the bottom of braiding channel, between on the pipeline that extends across being provided with 〉=2 water outlet, and the pipeline at water outlet place is provided with valve, valve by pipeline that has different heights position water outlet and water outlet constitutes the change Water Level Regulating System jointly, and the water outlet that becomes Water Level Regulating System enters braiding channel.
Described grid adopts changes the brush net comb formula grid of removing contamination; Its mounted angle with the water inlet water (flow) direction is 70～80 °, grid gap 10-20nm.The ecological filter bed employing of artificial-strengthening moves the buried structure design that can play insulation effect at north of china in winter, and filter bed top soddy soil layer is lower than ground level 20cm, and the filter bed bottom is lower than ground level 2m at least; Filler is gravel and zeolite, and adopting diameter in the 1m degree of depth of the ecological filter bed bottom of artificial-strengthening is the 12-16mm gravel filling, and it is the 8-12mm zeolite filler that the filter bed other parts adopt diameter.
Described reoxygenation pond is connected by overflow wall with ecological filter bed of artificial-strengthening, described overflow wall punching height is consistent with the regulation of level height that becomes Water Level Regulating System, promptly consistent with water outlet highly respectively with punching, highly to form by 3, the diameter in hole is less than the filtrate diameter; The water outlet that becomes Water Level Regulating System is made up of three valves being located at different heights, by opening and closing elevation of water surface in the different heights valve control filter bed.
Described plant is a waterplant, comprising: one or several combination of reed, cattail, wild rice stem, aquatic Canna generalis Bailey, iris, Scirpus tabernaemontani, calamus, giantreed; Aerating system 1 cun PPR boring aeration pipe in filter bed bottom leaves solarization air cap, the aperture in 225 ° and 315 ° of directions respectively
6mm; Aeration tube is laid perpendicular to water (flow) direction, and single aeration tube is controlled by valve, and aeration rate is adjustable, can realize stage aeration, at inner successive aerobic zone and the anaerobic zone of forming of filter bed, realizes efficient denitrification.
Described braiding channel top is provided with observation well; The stacking height of described ecological filler is higher than the design maximum height of sewage level.
During the application of described treatment system: the buried design of ecological filter bed employing, can effectively keep water temperature winter; Can extensively be suitable in the area of the northern area frozen soil degree of depth less than 1.2m winter;
1) sewage enters the reoxygenation pond by the water-in in reoxygenation pond, filters bigger particulate matter and floating matter in the filtering sewage by grid; Sewage enters the preceding watercourse aeration that carries out of filter bed by behind the grid in the reoxygenation pond;
2) sewage behind the reoxygenation enters that artificial-strengthening is ecological filter bed to be handled, the filter bed bottom is provided with the aerating apparatus of arranged boring aeration pipe, filter bed top plantation waterplant carries out ecological reoxygenation, and the pollution load situation according to plant root growth situation and sewage in the process of handling is set aeration rate; Use waterplant to carry out ecological reoxygenation, can reduce the watercourse aeration amount, cut down the consumption of energy;
Sewage purification process is finished in filler, contains root system of plant and microorganism in the filler;
3) the filter bed water outlet enters braiding channel by becoming Water Level Regulating System.
Described ecological filter bed interior each aeration tube can be controlled respectively, according to waterplant well developed root system degree and pollution load decision aeration rate, satisfying under the prerequisite of processing requirements, at utmost reduces aeration rate;
According to the difference of aeration open site, can form successive oxygen consumption district and anaerobic zone in the body of described ecological filter bed pond, realize efficient denitrification.
If when the ecological filter bed Sewage treatment systems of a plurality of artificial-strengthenings was set simultaneously, braiding channel can be interconnection.
The present invention has the following advantages:
1. the waterplant of described ecological filter bed top plantation well developed root system, the root of waterplant can provide oxygen for filter bed.Utilize the waterplant reoxygenation, changed traditional aeration ecological filter, the shortcoming of high energy consumption reduces the blower fan aeration rate, has improved efficient.
2. utilize controlled aeration tube, formed anaerobic zone and aerobic zone simultaneously, broken through tradition is carried out sewage disposal under the single creature environment method, under changeable coenocorrelation, carry out sewage treatment process and change in filter bed inside.
3. adopt the ecological filter bed technology of variable aeration amount, under changeable coenocorrelation, form complete ecological chain, make sewage that anaerobism, good foster, nitrated, denitrification repeatedly take place in filter bed, and depositions such as lifeless matter corpse, biological movement, biological clay, make mud decrement arrive minimum, not only simplify treatment scheme, and produced tangible environment protecting and economic benefit.
4. floor space little (no settling tank, back flushing and sludge treating system), treatment scheme is simple, convenient management, scale of investment is little, and running cost is low.
5. aeration rate is controlled, and capacity of resisting impact load is strong.
6. practicable modular combination treatment process thoroughly solves large and complete disadvantage in the construction of present sewage work, saves great amount of investment.
Description of drawings
Fig. 1 is the artificial structural representation of strengthening ecological filter bed Sewage treatment systems of the present invention.
Embodiment
Embodiment
As shown in Figure 1, this experimentation carries out in the Changtu County, Tieling, is used for handling polluting landscape water body, and the maximum processing water yield is 6m
3/ h, primary structure comprise reoxygenation pond body 3, ecological filter body 14, blower fan 10, braiding channel pond body 8.
Concrete size: reoxygenation pond body 2m * 1m * 2m, ecological filter pond body 5m * 1m * 2m, water collecting basin body 1m * 1m * 2m.
Braiding channel 8 by collect the discharge channel body, become Water Level Regulating System 15, observation well 16 forms.Wherein become the valve control of Water Level Regulating System by 3 different heights, its control principle is a law of connected vessels, and the ecological filter bed system of whole artificial-strengthening adopts high-water operation, hydraulic load maximum at this moment when opening the top valve; The ecological filter bed system of whole artificial-strengthening adopts the median water level operation when opening intervening vaive; When opening the bottom valve, he the sewage emptying in the filter bed because the water level low pressure is big, can be gone out the settling in the filter bed in the process of emptying.
With reference to figure 1, the present invention manually strengthens ecological filter bed sewage water treatment method and may further comprise the steps:
1) before sewage entered the reoxygenation pond from water-in 1, through grid 2, grid 2 was with particulate matter bigger in the sewage and floating matter filtering;
2) the 11 pairs of sewage of aeration tube that are installed in the reoxygenation pond carry out watercourse aeration.
3) sewage behind the reoxygenation enters ecological filter 14 through the overflow weir 12 on the overflow wall 4, sets the number that aeration tube 11 is opened at the aeration tube 11 of bottom, filter tank according to the dissolved oxygen content of sewage and the root growth situation of plant 6.
4) water after ecological filter bed 14 purifying treatment enters braiding channel 8 from becoming Water Level Regulating System, and braiding channel 8 tops are provided with observation well head 16, can enter the unlatching that the water collecting basin internal regulation becomes 3 different heights valves of Water Level Regulating System by the observation well head.Braiding channel 8 water outlets can be used as carwash, greening, road sprinkling and view moisturizing etc.
The waste disposal plant of the present invention's design can form oxygen consumption district and anaerobic zone by the opening and closing to aeration tube in same filter bed, finish digestion and denitrification process in same filter tank, has the efficient denitrification ability.By the root system of plant reoxygenation, the present invention greatly reduces energy consumption and back flushing frequency when forming the efficient denitrification ability.
Claims (9)
1. ecological filter bed Sewage treatment systems of artificial-strengthening is characterized in that:
By the drainage flow direction, form by reoxygenation pond (3), the artificial-strengthening ecological filter bed (14), the braiding channel (8) that are interconnected successively;
Be provided with water-in (1) on top, described reoxygenation pond, be provided with grid (2) in the water inlet in reoxygenation pond;
Between reoxygenation pond (3) and artificial-strengthening ecological filter bed (14), be provided with overflow wall (4), on the overflow wall (4) from top to bottom between across being equipped with the hole that penetrates body of wall, reoxygenation pond (3) ecological filter bed with artificial-strengthening (14) is connected;
Bottom at reoxygenation pond (3) and artificial-strengthening ecological filter bed (14) is provided with aeration tube (11), and aeration tube has aperture on (11), and aeration tube (11) links to each other with blower fan (10) by pipeline;
Tamped density is the filler (13) of 8mm～16mm greater than 1 diameter in artificial-strengthening ecological filter bed (14), and the filler top is equipped with the turfy soil (5) of the 100mm thickness that is used for Winter protection, and turfy soil (5) is gone up and kind is implanted with waterplant (6);
Between artificial-strengthening ecological filter bed (14) and braiding channel (8), be provided with dividing plate (7), be provided with pipeline in the bottom of dividing plate (7); One end of pipeline directly feeds the bottom of artificial-strengthening ecological filter bed (14), the other end of pipeline stretches in the braiding channel (8), being in pipeline in the braiding channel (8) extends upward from the bottom of braiding channel (8), the pipeline that is extending, pipeline is provided with 3 water outlets, and the pipeline at water outlet place is provided with valve, is made of jointly the valve of pipeline that has different heights position water outlet and water outlet to become Water Level Regulating System (15), and the water outlet that becomes Water Level Regulating System (15) enters braiding channel (8).
2. treatment system according to claim 1 is characterized in that: described grid adopts changes the brush net comb formula grid of removing contamination; Its mounted angle with the water inlet water (flow) direction is 70～80 °, grid gap 10-20nm.
3. treatment system according to claim 1, it is characterized in that: the ecological filter bed employing of described artificial-strengthening can be played the buried structure design of insulation effect in the north of china in winter operation, filter bed top soddy soil layer is lower than ground level 20cm, and the filter bed bottom is lower than ground level 2m at least;
Described filler is gravel and zeolite, and adopting diameter in the 1m degree of depth of artificial-strengthening ecological filter bed (14) bottom is the 12-16mm gravel filling, and it is the 8-12mm zeolite filler that the filter bed other parts adopt diameter.
4. treatment system according to claim 1, it is characterized in that: described reoxygenation pond is connected by overflow wall with ecological filter bed of artificial-strengthening, described overflow wall punching height is consistent with the regulation of level height that becomes Water Level Regulating System, promptly consistent with water outlet highly respectively with punching, highly form by 3, the diameter in hole is less than the filtrate diameter; The water outlet that becomes Water Level Regulating System is made up of three valves being located at different heights, by opening and closing elevation of water surface in the different heights valve control filter bed.
5. treatment system according to claim 1 is characterized in that: described plant is a waterplant, comprising: one or several combination of reed, cattail, wild rice stem, aquatic Canna generalis Bailey, iris, Scirpus tabernaemontani, calamus, giantreed.
6. treatment system according to claim 1 is characterized in that: described filter bed bottom aerating system adopts 1 cun PPR boring aeration pipe, opens solarization air cap, the aperture in 225 ° and 315 ° of directions respectively
Aeration tube is laid perpendicular to water (flow) direction, is equipped with by-pass valve control on the single aeration tube, and aeration rate is adjustable, can realize stage aeration, at inner successive aerobic zone and the anaerobic zone of forming of filter bed, realizes efficient denitrification.
7. treatment system according to claim 1 is characterized in that: described braiding channel (8) top is provided with observation well (16); The stacking height of described ecological filler is higher than the design maximum height of sewage level.
8. the application of the described treatment system of claim 1 is characterized in that:
The buried design of ecological filter bed employing, can effectively keep water temperature winter; Can extensively be suitable in the area of the northern area frozen soil degree of depth less than 1.2m winter;
1) sewage enters the reoxygenation pond by the water-in in reoxygenation pond, filters bigger particulate matter and floating matter in the filtering sewage by grid; Sewage enters the preceding watercourse aeration that carries out of filter bed by behind the grid in the reoxygenation pond;
2) sewage behind the reoxygenation enters that artificial-strengthening is ecological filter bed to be handled, the filter bed bottom is provided with the aerating apparatus of arranged boring aeration pipe, filter bed top plantation waterplant carries out ecological reoxygenation, and the pollution load situation according to plant root growth situation and sewage in the process of handling is set aeration rate; Use waterplant to carry out ecological reoxygenation, can reduce the watercourse aeration amount, cut down the consumption of energy;
Sewage purification process is finished in filler, contains root system of plant and microorganism in the filler;
3) the filter bed water outlet enters braiding channel by becoming Water Level Regulating System.
9. the application of described treatment system according to Claim 8, it is characterized in that: described ecological filter bed interior each aeration tube can be controlled respectively, according to waterplant well developed root system degree and pollution load decision aeration rate,, at utmost reduce aeration rate satisfying under the prerequisite of processing requirements;
According to the difference of aeration open site, can form successive oxygen consumption district and anaerobic zone in the body of described ecological filter bed pond, realize efficient denitrification.
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| CN200910248545A CN102101736B (en) | 2009-12-18 | 2009-12-18 | Sewage treatment system based on artificially intensified ecological filtering bed and application of sewage treatment system |
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| CN200910248545A CN102101736B (en) | 2009-12-18 | 2009-12-18 | Sewage treatment system based on artificially intensified ecological filtering bed and application of sewage treatment system |
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| CN102101736A true CN102101736A (en) | 2011-06-22 |
| CN102101736B CN102101736B (en) | 2012-09-12 |
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| CN102603075A (en) * | 2012-03-27 | 2012-07-25 | 苏州德华生态环境科技有限公司 | Grass stream ecological corridor facility for collecting and treating rainwater at shores of river and lake |
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