CN209098444U - A kind of low power consuming integrated rural sewage treatment unit - Google Patents
A kind of low power consuming integrated rural sewage treatment unit Download PDFInfo
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- CN209098444U CN209098444U CN201821531812.9U CN201821531812U CN209098444U CN 209098444 U CN209098444 U CN 209098444U CN 201821531812 U CN201821531812 U CN 201821531812U CN 209098444 U CN209098444 U CN 209098444U
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Abstract
The utility model discloses a kind of low power consuming integrated rural sewage treatment units, it is characterized in that, sewage sequentially enters water inlet pipe, anaerobic pond, film oxygenation exposes sedimentation basin and drainpipe, film oxygenation aeration pond is equipped at least one set of fixation filler being sequentially distributed along water (flow) direction, it is aerated membrane module, deflector and fixed filler, fixed filler is the growing carrier of denitrifying bacteria and Denitrifying Phosphate Accumulating Organisms, aerator is connect with aeration membrane module, make to form anaerobic-aerobic-anoxic subregion in film oxygenation aeration pond by control aeration quantity and aeration period, sludge refluxing apparatus is used for will be in sedimentation basin inner part sludge reflux to anaerobic pond, mud discharging device is used to excess sludge in sedimentation basin being expelled to sludge treatment facilities.The present apparatus carries out sewage treatment for the domestic sewage in rural areas of low COD, low C/N ratio, has the characteristics that Nitrogen/Phosphorus Removal is significant, low energy consumption, apparatus structure is simple, stable and operation maintenance cost is low.
Description
Technical field
The utility model relates to a kind of low power consuming integrated rural sewage treatment units, belong to sewage disposal technology neck
Domain.
Background technique
Village sanitary sewage is mainly derived from villager's kitchen waste water, life washing with shower sewage, sanitary wastewater etc., due to
Septic tank higher organic matter degradation effect, certain phosphor-removing effect and lower denitrification, by septic tank, drainpipe,
It is often lower that grid enters the sewage chemical oxygen demand (COD) of conditioning tank, C/N value.According to dirty to the typical village in 22, Jiangsu Province
The investigation of water treatment station point influent quality, 60% or more website influent COD are less than the website water inlet carbon-nitrogen ratio of 200mg/L, 76%
(COD/TN) less than 5.Lower C/N ratio makes carbon source deficiency in denitrification process, influences TN, TP removal of sewage treatment facility
Rate.
Traditional rural domestic sewage treatment facility mostly uses biochemical process, biochemistry+ecological process, biochemistry+MBR technique.
Biochemical process is with A2Based on/O technique and its improvement technique, in the lower situation of C/N, TN removal rate is often not satisfactory, and
To guarantee certain pollutants removal rate, biggish reflux is often set, operation energy consumption is caused to increase.Biochemistry+ecological process with
A2Based on/O+ artificial swamp, exists and take up a large area, the problems such as energy consumption is high.Biochemistry+MBR Process for Effluent water quality is relatively stable good
It is good, but that there are energy consumptions is high, is easy to cause the problems such as fouling membrane.In addition, traditional countryside Sewage Treatment Facilities mostly use aeration
The modes continuous aeration such as head, aeration plate, boring aeration pipe, oxygen utilization rate is low, further increases operation energy consumption.
Summary of the invention
Technical problem to be solved by the utility model is to provide a kind of Nitrogen/Phosphorus Removals significantly, low energy consumption, device knot
Simple, the stable and low operation maintenance cost processing unit for domestic sewage in rural areas of structure.
In order to solve the above technical problems, the technical solution adopted by the utility model is:
A kind of low power consuming integrated rural sewage treatment unit, characterized in that increase including water inlet pipe, anaerobic pond, film
Oxygen aeration tank, sedimentation basin, drainpipe, aerator, sludge refluxing apparatus and mud discharging device, sewage is successively through the water inlet pipe
Into the anaerobic pond, enter film oxygenation aeration pond through the anaerobic pond sidewall bottom through-hole, through the film oxygenation aeration
Pond upper through-hole enters the sedimentation basin, is discharged through the drainpipe, and film oxygenation aeration pond is equipped at least along water (flow) direction
One group of fixation filler, aeration membrane module, deflector and fixed filler being sequentially distributed, the fixed filler is denitrification
The growing carrier of bacterium and Denitrifying Phosphate Accumulating Organisms, the aerator are connect with the aeration membrane module, by controlling aeration quantity
Make to form anaerobic-aerobic-anoxic subregion in film oxygenation aeration pond with aeration period, the sludge refluxing apparatus is used for institute
It states in sedimentation basin inner part sludge reflux to the anaerobic pond, the mud discharging device is for arranging excess sludge in the sedimentation basin
Out to sludge treatment facilities.
The aeration membrane module is cast into closed-end type curtain component, the doughnut by hydrophobic hollow fiber membrane material
Membrane aperture range is 0.01-0.1 μm.
The hollow-fibre membrane is selected from macromolecule organic material.
The aerator includes aeration tube and the pressure gauge connecting with the aeration tube, flow control valve, gas stream
Meter and air blower.
The sludge refluxing apparatus includes sludge reflux pump, mud return line, the flow on the mud return line
Meter and flow control valve.
The mud discharging device includes sludge pipe and flow control valve.
It further include PLC control system.
The utility model is achieved the utility model has the advantages that the present apparatus is made by membrane module intermittent aerating, adjusting aeration quantity mode
Film oxygenation aeration pond forms anaerobic-aerobic-anoxic subregion, and in conjunction with anaerobic pond, sedimentation basin, forms anaerobic- anoxic- oxic-
Anoxic-depositing technology eliminates traditional A while strengthening sewage denitrification and dephosphorization effect, guaranteeing that stable effluent quality is excellent2/
Nitrification liquid reflux in O technique, reduces the number of devices and post facility operation energy consumption of device, and the present apparatus utilizes microbubble
Oxygenation aeration membrane technology replaces the aeration modes such as traditional microporous aeration disc to construct film oxygenation aeration pond, what oxygenation aeration film was formed
Micro bubbles increase time of contact and the contact area of oxygen and pollutant in water, to increase the oxygen of air in water
Mass transfer rate and oxygen transfer efficiency reduce membrane pollution problem in addition, present apparatus oxygenation aeration membrane module is positive pressure operation, this
Present apparatus automation control may be implemented using PLC control system in device, improves operation ease.Power-equipment needed for the present apparatus
Few, structure is simple, provides guarantee for the stabilization in later period, reliability service and reduction operation maintenance cost.
Detailed description of the invention
Fig. 1 is example structure schematic diagram；
Description of symbols: 1 water inlet pipe, 2 anaerobic ponds, 3 film oxygenation aeration ponds, 4 sedimentation basins, 5 fixed fillers, 6
Be aerated membrane module, 7 aeration tubes, 8 pressure gauges, 9 flow control valves, 10 gas flowmeters, 11 air blowers, 12 drainpipes,
13 sludge reflux pumps, 14 flowmeters, 15 flow control valves, 16 mud return lines, 17 flow control valves, 18 sludge pipes,
19 partitions, 20 deflectors, 21 partitions, 22 PLC control systems.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.Following embodiment is only used for clearly illustrating this
The technical solution of utility model, and cannot be used as a limitation the limitation protection scope of the utility model.
As shown in Figure 1, a kind of low power consuming integrated rural sewage treatment unit, including water inlet pipe 1, anaerobic pond 2, film
Oxygenation aeration pond 3, sedimentation basin 4, drainpipe 12, aeration control device, sludge refluxing apparatus, mud discharging device and PLC automation
Control system 22, wherein aeration control device include aeration tube 7 and the pressure gauge being connect with aeration tube 78, flow control valve 9,
Gas flowmeter 10 and air blower 11, sludge refluxing apparatus include sludge reflux pump 13, mud return line 16, are located at sludge reflux
Flowmeter 14 and flow control valve 15 on pipe 16.Mud discharging device includes sludge pipe 18 and flow control valve 17.Life is dirty
Water is entered in anaerobic pond 2 in a manner of elevator pump or gravity stream through water inlet pipe 1, and anaerobic pond 2 is equipped with by 19 bottom of partition to be increased with film
The through-hole that oxygen aeration tank 3 is connected to enters film oxygenation aeration pond 3, and 3 top of film oxygenation aeration pond on partition 21 with sedimentation basin 4 by connecting
Logical through-hole, into sedimentation basin 4, sewage enters natural water after precipitation process, through drainpipe 12, and sedimentation basin 4 is
Rectangular sedimentation tank, bottom are equipped with sludge hopper, sludge reflux pump 13 and sludge pipe 18, and the sludge of precipitating is through sludge reflux pump 13
Partial sludge is back in anaerobic pond 2 through return pipe 16, remainder is expelled to sludge treatment facilities through sludge pipe 18.
Wherein film oxygenation aeration pond 3 is equipped with the fixation filler 5 being sequentially distributed, aeration membrane module 6, deflector along water (flow) direction
20 and fixed filler 5, film oxygenation aeration pond 3 can be spaced according to the actual situation and lay multiple groups membrane module aeration zone, be formed multistage
A/O subregion.Fixed filler 5 provides carrier for denitrifying bacteria and Denitrifying Phosphate Accumulating Organisms growth, can further intensifying device denitrogenation
Phosphor-removing effect is aerated membrane module 6 by hydrophobic hollow fiber membrane material and is cast into closed-end type curtain component, doughnut membrane aperture
Range is 0.01-0.1 μm.Hollow-fibre membrane be selected from macromolecule organic material, as Kynoar (PVDF), polypropylene (PP),
Polytetrafluoroethylene (PTFE) etc..Film oxygenation aeration pond 3 is separated into two gallerys by deflector 20, makes sewage detour stream in pond
It is dynamic, while avoiding water flow short stream, be more advantageous to film oxygenation aeration pond 3 and form anaerobic-aerobic-anoxic subregion, aerator with
It is aerated membrane module 6 to connect, takes micro bubbles to be aerated mode, increased under the slightly above wind pressure of film wire bubble point by air blower
Oxygen aeration, the gas for entering membrane module is all pressed into sewage and forms micro bubbles, and the present apparatus is adjusted by flow control valve 9
Aeration quantity, PLC system control interval aeration period, it is ensured that anaerobic-aerobic-anoxic subregion is formed in film oxygenation aeration pond 3.
Specific principle is as follows:
Sewage enters anaerobic pond 2 through water inlet pipe 1, and the polyP bacteria in anaerobic pond 2 hydrolyzes polyphosphate intracellular and generates energy
Amount, discharges phosphate intracellular, while absorbing consumption Organic substance in water synthesis poly-β-hydroxy butyrate (PHB).It is organic in anaerobic pond 2
Nitrogen is converted into ammonia nitrogen by anaerobic ammoniation reaction.Sewage enters film oxygenation aeration by the partition 19 that bottom is equipped with through-hole later
Pond 3, film oxygenation aeration pond 3 form anaerobic-aerobic-and anoxic subregion by way of intermittent aerating, adjusting aeration quantity etc..It is dirty
Water initially enters the first anoxic subregion in film oxygenation aeration pond 3, and denitrifying bacterium is carried out anti-using nitrate nitrogen, the nitrite nitrogen in water
Denitrogenation is nitrified, while Denitrifying Phosphate Accumulating Organisms carry out the anaerobic of PHB using nitrate nitrogen or nitrite nitrogen substitution oxygen as electron acceptor
Oxidation is realized and further reaches denitrogenation conversion while inhaling phosphorus；Sewage enters the aerobic subregion in film oxygenation aeration pond 3 later, gathers
Phosphorus bacterium inhales rapidly phosphorus using PHB intracellular, and because the effect of aerobic microbiological continues to reduce, mineralized nitrogen is COD by Simultaneous Nitrification bacterium
Nitrate nitrogen and nitrite nitrogen；Sewage enters the second anoxic subregion in film oxygenation aeration pond 3 later, and denitrifying bacterium utilizes aerobic
The nitrate nitrogen and nitrite nitrogen of subregion conveying carry out denitrification denitrogenation, and Denitrifying Phosphate Accumulating Organisms utilize nitrate nitrogen or nitrite nitrogen
It further realizes and inhales phosphorus, denitrogenation.Later, sewage enters sedimentation basin 4 and is discharged after sludge settling, and sludge a part through precipitating is logical
It crosses return-flow system and enters anaerobic pond 2 to supplement the sludge being lost, excess sludge is expelled to sludge treatment facilities, and water outlet is discharged into nature
Water body, water quality can meet " urban wastewater treatment firm pollutant emission standard " (GB 18918-2002) primary standard.
Wherein, film aeration component 6 is run using the intermittent aerating mode for being slightly above film wire bubble point, while controlling aeration wind
Amount can not only guarantee that aeration oxygen replenishing pond 3 forms anaerobic-aerobic-anoxic subregion, while can reduce equipment operation energy consumption.Because just
Press operation, aeration membrane module are not easy to pollute, and can will be polluted by way of increasing aeration pressure and aeration quantity when in the presence of pollution
Object stripping.
In above-mentioned treatment process, sewage is the sewage that domestic sewage in rural areas enters conditioning tank after collecting, water quality item
Part are as follows: the mg/L of mg/L, SS≤200 of mg/L, TP≤5 of mg/L, TN≤60 of COD≤300mg/L, NH3-N≤50, C/N≤5.
Device hydraulic detention time 12h, wherein the volumetric ratio control of anaerobic pond, the first anoxic subregion, aerobic subregion, the second anoxic subregion
System is in 1:1:2:2, to guarantee the Nitrogen/Phosphorus Removal of sewage.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
It also should be regarded as the protection scope of the utility model into deformation.
Claims (7)
1. a kind of low power consuming integrated rural sewage treatment unit, characterized in that including water inlet pipe (1), anaerobic pond (2),
Film oxygenation aeration pond (3), sedimentation basin (4), drainpipe (12), aerator, sludge refluxing apparatus and mud discharging device, sewage according to
It is secondary to enter the anaerobic pond (2) through the water inlet pipe (1), enter the film oxygenation through the anaerobic pond (2) sidewall bottom through-hole
Aeration tank (3) enters the sedimentation basin (4) through film oxygenation aeration pond (3) upper through-hole, arranges through the drainpipe (12)
Out, film oxygenation aeration pond (3) are equipped at least one set of fixation filler (5) being sequentially distributed, aeration membrane module along water (flow) direction
(6), deflector (20) and the fixed filler (5), the fixed filler (5) are denitrifying bacteria and Denitrifying Phosphate Accumulating Organisms
Growing carrier, the aerator are connect with the aeration membrane module (6), make the film by control aeration quantity and aeration period
Anaerobic-aerobic-anoxic subregion is formed in oxygenation aeration pond (3), the sludge refluxing apparatus is used for the sedimentation basin (4) is internal
Divide in sludge reflux to the anaerobic pond (2), the mud discharging device is used to the sedimentation basin (4) interior excess sludge being expelled to dirt
Mud treatment facility.
2. a kind of low power consuming integrated rural sewage treatment unit according to claim 1, characterized in that the exposure
Air film component (6) is cast into closed-end type curtain component, the hollow-fibre membrane pore diameter range by hydrophobic hollow fiber membrane material
It is 0.01-0.1 μm.
3. a kind of low power consuming integrated rural sewage treatment unit according to claim 2, characterized in that in described
Empty fiber membrane is selected from macromolecule organic material.
4. a kind of low power consuming integrated rural sewage treatment unit according to claim 1, characterized in that the exposure
Device of air includes aeration tube (7) and the pressure gauge (8) connecting with the aeration tube (7), flow control valve (9), gas flow
Count (10) and air blower (11).
5. a kind of low power consuming integrated rural sewage treatment unit according to claim 1, characterized in that the dirt
Mud reflux unit includes sludge reflux pump (13), mud return line (16), the flowmeter being located on the mud return line (16)
(14) and flow control valve (15).
6. a kind of low power consuming integrated rural sewage treatment unit according to claim 1, characterized in that the row
Mud device includes sludge pipe (18) and flow control valve (17).
7. a kind of low power consuming integrated rural sewage treatment unit according to claim 1, characterized in that further include
PLC control system (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531812.9U CN209098444U (en) | 2018-09-19 | 2018-09-19 | A kind of low power consuming integrated rural sewage treatment unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531812.9U CN209098444U (en) | 2018-09-19 | 2018-09-19 | A kind of low power consuming integrated rural sewage treatment unit |
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| CN209098444U true CN209098444U (en) | 2019-07-12 |
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| CN201821531812.9U Active CN209098444U (en) | 2018-09-19 | 2018-09-19 | A kind of low power consuming integrated rural sewage treatment unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590083A (en) * | 2019-10-24 | 2019-12-20 | 天津海之凰科技有限公司 | Sludge membrane sewage treatment device and method based on MABR |
| CN111333183A (en) * | 2020-02-07 | 2020-06-26 | 中日友好环境保护中心(生态环境部环境发展中心) | Applications A2Method for treating comprehensive sewage in hair product industry gathering area by adopting/O (anaerobic-anoxic-oxic) process |
| CN114212876A (en) * | 2021-12-20 | 2022-03-22 | 北京首创生态环保集团股份有限公司 | Membrane oxygen transfer biofilm reactor integration equipment |
-
2018
- 2018-09-19 CN CN201821531812.9U patent/CN209098444U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590083A (en) * | 2019-10-24 | 2019-12-20 | 天津海之凰科技有限公司 | Sludge membrane sewage treatment device and method based on MABR |
| CN111333183A (en) * | 2020-02-07 | 2020-06-26 | 中日友好环境保护中心(生态环境部环境发展中心) | Applications A2Method for treating comprehensive sewage in hair product industry gathering area by adopting/O (anaerobic-anoxic-oxic) process |
| CN114212876A (en) * | 2021-12-20 | 2022-03-22 | 北京首创生态环保集团股份有限公司 | Membrane oxygen transfer biofilm reactor integration equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 225508 No.1, Qinhu Avenue, Qintong Town, Jiangyan District, Taizhou City, Jiangsu Province Patentee after: Huashi Design Group Environmental Technology Co.,Ltd. Address before: 210000 9 Ziyun Avenue, Qinhuai District, Nanjing, Jiangsu Province Patentee before: CHINA DESIGN GROUP ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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