CN102101736B - 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 PDF

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Publication number
CN102101736B
CN102101736B CN200910248545A CN200910248545A CN102101736B CN 102101736 B CN102101736 B CN 102101736B CN 200910248545 A CN200910248545 A CN 200910248545A CN 200910248545 A CN200910248545 A CN 200910248545A CN 102101736 B CN102101736 B CN 102101736B
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filter bed
ecological
artificial
aeration
strengthening
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CN200910248545A
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Chinese (zh)
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CN102101736A (en
Inventor
赵军
郎咸明
晁雷
李晓东
李相坤
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辽宁北方环境保护有限公司
辽宁省环境科学研究院
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Priority to CN200910248545A priority Critical patent/CN102101736B/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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

Ecological filter bed Sewage treatment systems of a kind of artificial-strengthening and application
Technical field
The present invention relates to WWT, 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 sewage directly enter the river course without any processing, and the water surrounding in river course, rural area has received 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
To 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 realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
The ecological filter bed Sewage treatment systems of a kind of artificial-strengthening by the drainage flow direction, is made up of 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, said 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) through 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); The pipeline that is in the braiding channel (8) extends upward from the bottom of braiding channel (8), on the pipeline that extends, be provided with 3 water outlets, 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 change Water Level Regulating System (15) jointly, and the water outlet that becomes Water Level Regulating System (15) gets into braiding channel (8).
Said 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 north of china in winter that is employed in of said artificial-strengthening moves the buried structure design that can play insulation effect, 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;
Said 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 other part of filter bed adopts diameter.
Said reoxygenation pond is connected through overflow wall with ecological filter bed of artificial-strengthening; Said 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, through opening and closing elevation of water surface in the different heights valve control filter bed.
Said plant is a waterplant, comprising: one or several combination of reed, cattail, wild rice stem, aquatic Canna generalis Bailey, iris, Scirpus tabernaemontani, calamus, giantreed.
Said filter bed bottom aerating system adopts 1 cun PPR boring aeration pipe; Open solarization air cap, 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.
Said braiding channel (8) top is provided with observation well (16); The stacking height of said filler is higher than the design maximum height of sewage level.
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 gets into the reoxygenation pond by the water-in in reoxygenation pond, filters bigger PM for particulate matter and swimmer in the filtering sewage through grid; Sewage gets into the preceding watercourse aeration that in the reoxygenation pond, carries out of filter bed through behind the grid;
2) sewage behind the reoxygenation gets into 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 accomplished in filler, contains root system of plant and mikrobe in the filler;
3) the filter bed water outlet gets into braiding channel through becoming Water Level Regulating System.
Said 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 said 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 said 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 WWT 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.
Reoxygenation pond 3 is made up of water-in 1, grid 2, aeration tube 11, overflow wall 4.Overflow wall 4 is made up of 3 highly different overflow weirs 12, and reoxygenation pond body is buried design, can reduce mosquitos and flies like this and multiply, the stink diffusion.
Ecological filter 14 is made up of filler 13, turfy soil 5, waterplant 6, overflow wall 4, aerating apparatus 11.Packing material size near overflow wall 4 when filler 13 is banked up is bigger, and its diameter is greater than the diameter of overflow weir 12.The top of filler 13 is equipped with the turfy soil 5 that thickness is 100mm, and planting aquatic plants 6 in turfy soil, and the root of waterplant 6 stretches into filler inside.The stacking height of filler 13 is higher than the design maximum height of sewage level.
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 the high-water operation when opening the top valve, and this moment, hydraulic load was maximum; The ecological filter bed system of whole artificial-strengthening adopts the median water level operation when opening intervening vaive; , he can 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 when opening the bottom valve.
With reference to figure 1, the ecological filter bed sewage water treatment method of the artificial reinforcement of the present invention may further comprise the steps:
1) before sewage got into the reoxygenation pond from water-in 1, through grid 2, grid 2 was with PM for particulate matter bigger in the sewage and swimmer 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 gets into ecological filter 14 through the overflow weir on the overflow wall 4 12, 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 gets into braiding channel 8 from becoming Water Level Regulating System, and braiding channel 8 tops are provided with observation well head 16, can get into the unlatching that the water collecting basin internal regulation becomes 3 different heights valves of Water Level Regulating System through 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 through the opening and closing to aeration tube in same filter bed, in same filter tank, accomplish digestion and denitrification process, has the efficient denitrification ability.Through the root system of plant reoxygenation, the present invention greatly reduces energy consumption and back flushing frequency when forming the efficient denitrification ability.

Claims (8)

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, said 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) through 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); The pipeline that is in the braiding channel (8) extends upward from the bottom of braiding channel (8), on the pipeline that extends, be provided with 3 water outlets, 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 change Water Level Regulating System (15) jointly, and the water outlet that becomes Water Level Regulating System (15) gets into braiding channel (8).
2. treatment system according to claim 1; It is characterized in that: the ecological filter bed north of china in winter that is employed in of said artificial-strengthening moves the buried structure design that can play insulation effect; 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;
Said 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 other part of filter bed adopts diameter.
3. treatment system according to claim 1; It is characterized in that: said reoxygenation pond is connected through overflow wall with ecological filter bed of artificial-strengthening; Said 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, through opening and closing elevation of water surface in the different heights valve control filter bed.
4. treatment system according to claim 1 is characterized in that: said plant is a waterplant, comprising: one or several combination of reed, cattail, wild rice stem, aquatic Canna generalis Bailey, iris, Scirpus tabernaemontani, calamus, giantreed.
5. treatment system according to claim 1; It is characterized in that: said filter bed bottom aerating system adopts 1 cun PPR boring aeration pipe; Open solarization air cap in 225 ° and 315 ° of directions respectively; Aperture aeration tube is laid perpendicular to water (flow) direction; Be equipped with by-pass valve control on the single aeration tube, aeration rate is adjustable, can realize stage aeration; At inner successive aerobic zone and the anaerobic zone of forming of filter bed, realize efficient denitrification.
6. treatment system according to claim 1 is characterized in that: said braiding channel (8) top is provided with observation well (16); The stacking height of said filler is higher than the design maximum height of sewage level.
7. the application of the said 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 gets into the reoxygenation pond by the water-in in reoxygenation pond, filters bigger PM for particulate matter and swimmer in the filtering sewage through grid; Sewage gets into the preceding watercourse aeration that in the reoxygenation pond, carries out of filter bed through behind the grid;
2) sewage behind the reoxygenation gets into 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 accomplished in filler, contains root system of plant and mikrobe in the filler;
3) the filter bed water outlet gets into braiding channel through becoming Water Level Regulating System.
8. according to the application of the said treatment system of claim 7; It is characterized in that: said 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 said ecological filter bed pond, realize efficient denitrification.
CN200910248545A 2009-12-18 2009-12-18 Sewage treatment system based on artificially intensified ecological filtering bed and application of sewage treatment system CN102101736B (en)

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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
CN103011513B (en) * 2012-12-17 2014-03-12 冯文俊 Bacteria filter for urban rainwater collecting
CN103214090B (en) * 2013-05-16 2014-06-11 南京大学 Anoxic humic filler filter tank and method for treating nitrogen containing degradation-resistant wastewater
CN103395930A (en) * 2013-07-31 2013-11-20 武汉大学 Ecological slope protection type sewage land infiltration system and ecological slope protection type sewage land infiltration method
FR3013347A1 (en) * 2013-11-21 2015-05-22 Recycl Eau Method and station for managing effluents from agronomic activities by hybrid phytoepuration treatment.
CN104230125A (en) * 2014-10-14 2014-12-24 郑州同济环保工程有限公司 Sewage purifying system and sewage treating device
CN105174478A (en) * 2015-09-29 2015-12-23 武汉圣禹排水系统有限公司 Biofilter
CN105668943B (en) * 2016-04-01 2018-12-25 福州大学 For the multi-stage aeration biological filter tank of purification of water quality and its purification process
CN108409035A (en) * 2018-03-16 2018-08-17 同济大学 A kind of multiphase circular integration sewage disposal system for the processing of lavatory fecaluria
CN109502751A (en) * 2018-11-23 2019-03-22 武汉理工大学 A kind of green top partitioning type multistage AO integrated sewage disposal technique

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