CN206553273U - It is a kind of to strengthen manpower rapid-infiltration devices of the low C/N than sewage water denitrification efficiency - Google Patents
It is a kind of to strengthen manpower rapid-infiltration devices of the low C/N than sewage water denitrification efficiency Download PDFInfo
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- CN206553273U CN206553273U CN201720026160.2U CN201720026160U CN206553273U CN 206553273 U CN206553273 U CN 206553273U CN 201720026160 U CN201720026160 U CN 201720026160U CN 206553273 U CN206553273 U CN 206553273U
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Abstract
Strengthen manpower rapid-infiltration devices of the low C/N than sewage water denitrification efficiency the utility model discloses a kind of, unit is oozed soon including first, second oozes unit and reflux unit soon, wherein, first oozes unit soon oozes pond soon including intake pool and first, second oozes unit soon includes collecting-tank, water-locator and be arranged at below water-locator second ooze pond soon, reflux unit includes passing through tank and the water pump of flowing back, intake pool, first oozes pond soon, collecting-tank, between water-locator, and second ooze pond soon, flow back tank, respectively it is sequentially connected between water pump by pipeline, the delivery port of water pump oozes pond with first and is connected by pipeline soon, the water of backflow tank is discharged and flowed back according to setting ratio.In general, the manpower rapid-infiltration device, can effectively improve denitrification efficiencies of the low C/N than sewage, have the advantages that operating cost is low, simple in construction, easy to operate, stability is high, suitable for large-scale production, be worth in the field of business and promote.
Description
Technical field
The utility model belongs to technical field of sewage treatment equipment, and in particular to the low C/N of one kind reinforcing is imitated than sewage water denitrification
The manpower rapid-infiltration device of energy.
Background technology
The manual controlled infusion grown up on the basis of traditional rapid infiltration system is that a kind of capital expenditure is few, technical process is simple
Just, the relatively low Novel sewage eco-treatment technology of operating cost, the technology is in processing town ＆ country sanitary sewage and gets dirty
Effect is obvious during the surface water of dye, to COD (COD), biochemical oxygen demand (BOD) (BOD), ammonia nitrogen (NH3- N), suspension (SS)
Clearance with anion surfactant (LAS) etc. can be more than 80%, with important application and promotional value.So
And, when sewage C/N than it is relatively low when, although manpower rapid-infiltration pond bottom possesses scarce/anaerobic condition, but because carbon source is not enough, denitrification
Bacterial activity is relatively low, causes system denitrification capability poor, and total nitrogen (TN) clearance is low, and only 10%~30%, it is impossible to up to standard
Discharge.Nitrogen-containing pollutant, which is largely discharged into rivers, can cause body eutrophication, and nitrous acid can also have " three with amine effect generation
The nitrosamine of cause " effect, and then be detrimental to health.Therefore, denitrogenation of the manual controlled infusion to low C/N than sewage how is improved
Efficiency turns into the technological difficulties of the technique application, is also increasingly paid attention to by domestic and international sewage disposal expert.
At present, the strengthened denitrification research of manual controlled infusion is concentrated mainly on the configuration of optimization filler, changes operational factor, increases
If in terms of full water layer, supplement additional carbon, segmental influent.Wherein, optimization filler configures, changes operational factor, sets up full water
The methods such as layer can improve the denitrogenation environment of denitrifying bacterium to a certain extent, but carbon source is not enough to ask without fundamentally solving
Topic, long-term effect is unsatisfactory；Additional carbon is supplemented then mainly using small molecule liquid carbon sources such as methanol, ethanol, acetic acid, although
Nitric efficiency can be effectively improved, but there is cost height, dosage and is difficult to control, the drawbacks such as secondary pollution may be triggered, it is difficult
With industrial applications；Segmental influent be a kind of minimum increase relatively of cost lack (detesting) oxygen section C/N than mode, generally using not
Combine the comparative study with different water inlet ratios to determine position and the water of segmental influent with water inlet, but be due to that sewage exists
The hydraulic detention time of manual controlled infusion denitrification section is shorter, and pollutant often cannot fully degrade and be discharged with water outlet,
The discharge beyond standards of other pollutants are easily caused while denitrification denitrogenation performance is improved.
Therefore, people of the low C/N than sewage water denitrification efficiency is strengthened there is provided a kind of for the shortcomings of the prior art
It is significant that work oozes device soon.
Utility model content
The purpose of this utility model is to solve the above problems that there is provided a kind of low C/N of reinforcing is more artificial than sewage water denitrification efficiency
Device is oozed soon, and the device can provide new way to solve the problem of Traditional Man rapid infiltration system nitric efficiency is low.
In order to solve the above technical problems, the technical solution of the utility model is：The low C/N of one kind reinforcing is than sewage water denitrification efficiency
Manpower rapid-infiltration device, including first ooze unit, second ooze unit and reflux unit soon soon, wherein, described first oozes unit soon
Pond is oozed soon including intake pool and first, and described second oozes unit including collecting-tank, water-locator and be arranged at below water-locator soon
Second ooze pond soon, the reflux unit is included by tank and the water pump of flowing back, and the intake pool, first ooze pond, catchmented soon
Between pond, water-locator, and described second oozes pond soon, flow back respectively is sequentially connected between tank, water pump by pipeline, institute
The delivery port and first for stating water pump ooze pond and are connected by pipeline soon, and the water of the backflow tank is discharged according to setting ratio
And backflow.
Preferably, described first oozes pond using upstream water intake mode soon, in it by it is lower and on set gradually breeze way one,
Packing section one, fillter section and water exit end.
Preferably, the breeze way one and fillter section are uniformly filled using setting ratio cobble, rubble, the packing section
One is uniformly filled using anthracite, medical stone, vermiculite, and the water exit end does not make any filling.
Preferably, the packing section one is constantly in waterflooding state, and flow of inlet water is 0.5L/h.
Preferably, described second oozes pond using downstream water intake mode soon, and inlet segment is set gradually from top to bottom in it, is filled out
Expect section two and breeze way two.
Preferably, the inlet segment does not do any filling, and the packing section two uses the anthracite of setting ratio, green boiling
Stone, pelelith are uniformly filled, and the breeze way two is uniformly filled using cobble, the rubble of setting ratio.
Preferably, the packing section two is by the way of the dry alternate run of waterflooding/fall, wet-dry ratio 1：1~1：3, waterpower is born
6~8h of duty cycle phase.
Preferably, described first oozes the not higher than intake pool of horizontal level residing for pond soon, and the intake pool and first oozes pond soon
Between pipeline on regulating valve one and flowmeter one are installed.
Preferably, horizontal level residing for the water-locator is not higher than collecting-tank, and the collecting-tank and second are oozed between pond soon
Pipeline on timer, regulating valve two and flowmeter two are installed.
Preferably, flowmeter three is installed on the pipeline between the backflow tank and water pump, the refluxing portion leads to
Excessively stream gauge three controls reflux ratio.
The beneficial effects of the utility model are：Manpower rapid-infiltrations of the low C/N of reinforcing than sewage water denitrification efficiency that the present invention is provided
Device, is provided through pipeline and circulates the first of connection successively oozing unit soon, second ooze unit and reflux unit soon, passes through first
The denitrification stage and second of oozing unit soon ooze the nitrification stage of unit soon, and the water outlet into reflux unit contains higher concentration
The ammonia nitrogen and organic matter of nitrate nitrogen, low concentration, by setting reflux ratio it is partly refluxed into first, and to ooze pond soon same with raw sewage
Shi Jinshui, realizes that organic matter and the synchronous of nitrate nitrogen remove, effectively the total nitrogen concentration of reduction water outlet by heterotrophic denitrification, so that
Improve denitrification efficiencies of the low C/N than sewage.Meanwhile, the basicity that denitrification process is produced can be the second nitrifying process for oozing pond soon
Supplement basicity.In general, it is excellent that the manpower rapid-infiltration device has that operating cost is low, simple in construction, easy to operate, stability is high
Point, and efficiently, energy-conservation, non-secondary pollution, suitable for large-scale production, be worth it is in the field of business promote.
Brief description of the drawings
Fig. 1 is that the utility model strengthens structural representations of the low C/N than the manpower rapid-infiltration device of sewage water denitrification efficiency.
Description of reference numerals：1st, intake pool；2nd, regulating valve one；3rd, flowmeter one；4th, first oozes pond soon；5th, collecting-tank；6、
Timer；7th, regulating valve two；8th, flowmeter two；9th, water-locator；10th, second oozes pond soon；11st, flow back tank；12nd, water pump；13、
Flowmeter three.
Embodiment
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of manpower rapid-infiltration devices of the low C/N of reinforcing of the present utility model than sewage water denitrification efficiency, including
First oozes unit, second oozes unit and reflux unit soon soon.First oozes unit soon oozes pond 4, second soon including intake pool 1 and first
Unit is oozed soon and oozes pond 10 soon including collecting-tank 5, water-locator 9 and second, and reflux unit includes passing through tank 11 and the water of flowing back
Pump 12.Intake pool 1, first oozes between pond 4, collecting-tank 5, water-locator 9 soon, and second oozes pond 10, backflow tank 11, water soon
Respectively it is sequentially connected between pump 12 by pipeline.The delivery port of water pump 12 oozes pond 4 with first and is connected by pipeline soon, backflow storage
The water in pond 11 is discharged and flowed back according to setting ratio.
Specifically, in the present embodiment, first oozes in unit soon, the first horizontal level oozed soon residing for pond 4 be not higher than into
Pond 1, raw sewage can ooze pond 4 soon by gravity stream into first.Intake pool 1 and first oozes soon also pacifies on the pipeline between pond 4
Equipped with regulating valve 1 and flowmeter 1, flow of inlet water can be controlled by regulating valve 1 and flowmeter 1.First oozes pond 4 soon adopts
Water mode, i.e. bottom water inlet, the water intake mode of top water outlet are flowed into up.The high 80cm in pond, internal diameter 16cm, in it by it is lower and on
It is 0.5 according to volume ratio：5：0.5：2 set gradually breeze way one, packing section one, fillter section and water exit end.The He of breeze way one
Fillter section is used according to volume ratio as 1：3 cobble, rubble are uniformly filled, and cobble, ballast grain sizes are respectively 10~35mm, 5
~15mm.Packing section one is used according to volume ratio as 7：2：1 anthracite, medical stone, vermiculite are uniformly filled, anthracite, wheat meal
Stone, vermiculite particle diameter are respectively 0.5~1mm, 1~2mm, 1~3mm.Water exit end does not make any filling.First oozes pond 4 and catchments soon
Pond 5 is connected by pipeline, and the water outlet of water exit end enters collecting-tank 5.First packing section one oozed soon in pond 4 is constantly in waterflooding shape
State, flow of inlet water is 0.5L/h.
Second oozes in unit soon, and horizontal level residing for water-locator 9 is not higher than collecting-tank 5, and second oozes pond 10 soon is arranged at cloth
Sewage in the lower section of hydrophone 9, collecting-tank 5 then can be directly entered second by the water distribution uniformity of water-locator 9 by gravity stream and ooze soon
Pond 10.Collecting-tank 5 and second oozes soon is provided with timer 6, regulating valve 27 and flowmeter 28 on the pipeline between pond 10, fixed
When device 6 be used to control flooding time, regulating valve 27 and the control flow of inlet water of flowmeter 28.Second oozes pond 10 soon uses downstream
Water intake mode, i.e. top water inlet, the water intake mode of bottom water outlet.The high 80cm in pond, internal diameter 16cm, from top to bottom according to volume in it
Than for 2.5：5：0.5 sets gradually inlet segment, packing section two and breeze way two.Inlet segment does not do any filling.Packing section two
It is 7 according to volume ratio：2：1 anthracite, green zeolite, pelelith are uniformly filled, anthracite, green zeolite, pelelith particle diameter difference
For 0.5~1mm, 1~2mm, 1~3mm.Breeze way two is according to volume ratio 1：3 cobble, rubble are uniformly filled, cobble, rubble grain
Footpath is respectively 10~35mm, 5~15mm.Second oozes pond 10 and backflow tank 11 soon is connected by pipeline, and breeze way water outlet is entered
Enter to flow back tank 11.Second oozes packing section two in pond 10 soon realizes packing section by the way of the dry alternate run of waterflooding/fall
Natural reaeration, wet-dry ratio 1：1~1：3,6~8h of turbine generating set.
In reflux unit, flowmeter 3 13 is installed on the pipeline between backflow tank 11 and water pump 12, water pump 12
Delivery port oozes pond 4 with first and is connected by pipeline soon.The water of backflow tank 11 is returned according to setting ratio partial discharge, part
Stream, refluxing portion controls reflux ratio by flowmeter 3 13, and be delivered to first through water pump 12 oozes the bottom of pond 4 and raw sewage simultaneously soon
Water inlet.
It should be noted that above-mentioned first oozes pond 4 and second and oozes the specific size in pond 10 soon and be not limited to the present embodiment soon
Described in, the specific size in pond is oozed soon to be set accordingly according to actual sewage treating capacity and other design requirements.Equally
, first/second oozes the specific setting of each section in pond (4,10), including corresponding filling kind and ratio soon, can
It is adjusted according to actual requirement, not special restriction, can also uses and other in this area conventional ooze pond design side soon
Method.In addition, the carrying out practically of the packing section one/bis- in above-mentioned, is also only the selected preferred embodiment of the present embodiment, also can basis
Actual conditions are adjusted correspondingly to design parameters such as wet-dry ratio, turbine generating set, flow of inlet water.Further, stream storage
The water discharge in pond and the ratio of backflow are not also limited, can be carried out completely according to the thing situation of the various indexs of sewage corresponding
Adjustment.
In the present embodiment, first oozes unit and second and oozes intake pool 1 and collecting-tank 5 in unit soon and be located at the respectively soon
One oozes pond 4 and second soon oozes the top of pond 10 soon, sewage can be directly entered by gravity it is corresponding ooze pond soon, without additionally setting
Sewage transport pump, while second oozes the natural reaeration that packing section is realized in pond 10 by the way of the dry alternate run of waterflooding/fall, nothing soon
Aerator oxygen supply need to be additionally set, energy consumption has been saved, reduced operating cost.
Further, first is oozed pond 4 and second and oozes pond 10 soon and filled out using the filtrate matched somebody with somebody of a variety of different-grain diameters level soon
Fill, the blocking of system is effectively prevent while keeping compared with high water-base fluid, microorganism is formed by being attached to filler surface
Biomembrane is degraded to the pollutant in sewage, does not produce excess sludge, and apparatus structure is simple, and easy to operate, stability is good.
In addition, first oozes pond 4 using upstream water intake mode soon, the labile organic compound and phegma into water are made full use of
In nitrate nitrogen carry out denitrification, improve nitric efficiency while eliminate additional carbon, while denitrification process produce alkali
Degree can be the second nitrifying process supplement basicity for oozing pond 10 soon, for strengthen low C/N than sewage water denitrification efficiency provide it is a kind of it is efficient,
Energy-conservation, the manpower rapid-infiltration device of non-secondary pollution.
The utility model mainly includes the three below stage to low C/N than the denitrification process of sewage：
The denitrification stage：First oozes pond 4 soon uses upstream water intake mode, and packing section one is constantly in waterflooding state, made
First oozes pond 4 soon is substantially at anaerobic condition, is conducive to the progress of denitrification process.By reflux ratio control 100%~
300%, oozed soon first using the nitrate nitrogen in the labile organic compound and phegma of water inlet and carry out denitrification in pond 4, improved
Without additional carbon while nitric efficiency, while the basicity that denitrification process is produced can be the second nitrifying process for oozing pond 10 soon
Supplement basicity.
The nitrification stage：Second oozes pond 10 soon uses downstream water intake mode, and packing section two is in waterflooding/fall do and replaces shape
State, enables second to ooze the natural reaeration that packing section is realized in pond 10 soon, is conducive to the progress of nitrifying process.Ammonia nitrogen quilt in sewage
Filling adsorption or retention, nitrate nitrogen is changed into filler surface biological film in the presence of nitrifier.
Refluxing stage：Due to the ammonia nitrogen containing higher concentration in raw sewage, the nitrate nitrogen of low concentration and certain difficulty
Organic matter, good denitrification can not be carried out by being oozed soon into first behind pond 4, and the water outlet in the liquid storage tank that flows back contain it is more highly concentrated
The nitrate nitrogen of degree, the ammonia nitrogen of low concentration and organic matter, are partly refluxed to first and ooze pond 4 and raw sewage soon and intake simultaneously,
Realize that organic matter and the synchronous of nitrate nitrogen remove by heterotrophic denitrification, can effectively reduce the total nitrogen concentration of water outlet.
Application method of the present utility model and using effect are illustrated below by way of specific experiment example, further to open up
Show advantage of the present utility model and principle：
Experimental example 1
Using the low C/N of the simulation manually prepared than sewage as water inlet of the present utility model, its basic water quality index is as follows：
COD、NH3- N, TP concentration are respectively 350mg/L, 100mg/L, 4mg/L, and pH is 7.5.It is good to grow the microorganism on filler
It is good, 0.1mL microelement nutritious liquids are added in every 10L water distributions, are formulated as follows：CaCl2·2H2O 1200mg/L, MgSO4·
7H2O 1100mg/L, ZnSO4·5H2O 20mg/L, MnCl4·4H2O 20mg/L, CuSO4·5H2O 13mg/L, NaMoO4·
2H2O 10mg/L.Operational factor is as follows：First oozes the flow of inlet water 0.5L/h of pond 4 soon, and second oozes the wet-dry ratio 1 of pond 10 soon：1, waterpower
Load period 8h, reflux ratio 300%.Monitoring method：COD uses potassium dichromate method, NH3- N uses reagent colorimetric method, TN
Using peroxide potassium sulfate-ultraviolet spectrophotometry, every 2~3d monitors an Inlet and outlet water water quality.
Monitoring result shows, the manpower rapid-infiltration device tends towards stability after operation 27d, effluent COD concentration is 17.8~
25.5mg/L, average removal rate is 92.9%；Water outlet NH3- N concentration is 2.7~4.6mg/L, and average removal rate is 96.6%；Go out
Water TN concentration is 8.5~11.3mg/L, and average removal rate is 90.1%.
Experimental example 2
Using the low C/N of the simulation manually prepared than sewage as water inlet of the present utility model, its basic water quality index is as follows：
COD、NH3- N, TP concentration are respectively 210mg/L, 100mg/L, 2mg/L, and pH is 7.5.It is good to grow the microorganism on filler
It is good, 0.1mL microelement nutritious liquids are added in every 10L water distributions, are formulated as follows：CaCl2·2H2O 1200mg/L, MgSO4·
7H2O 1100mg/L, ZnSO4·5H2O 20mg/L, MnCl4·4H2O 20mg/L, CuSO4·5H2O 13mg/L, NaMoO4·
2H2O 10mg/L.Operational factor is as follows：First oozes the flow of inlet water 0.5L/h of pond 4 soon, and second oozes the wet-dry ratio 1 of pond 10 soon：3, waterpower
Load period 8h, reflux ratio 150%.Monitoring method：COD uses potassium dichromate method, NH3- N uses reagent colorimetric method, TN
Using peroxide potassium sulfate-ultraviolet spectrophotometry, every 2~3d monitors an Inlet and outlet water water quality.
Monitoring result shows, the manpower rapid-infiltration device tends towards stability after operation 31d, effluent COD concentration is 8.5~
11.5mg/L, average removal rate is 95.3%；Water outlet NH3- N concentration is 3.9~4.8mg/L, and average removal rate is 95.6%；Go out
Water TN concentration is 14.2~17.2mg/L, and average removal rate is 84.5%.
Experimental example 3
Using the low C/N of the simulation manually prepared than sewage as water inlet of the present utility model, its basic water quality index is as follows：
COD、NH3- N, TP concentration are respectively 90mg/L, 100mg/L, 1mg/L, and pH is 7.5.It is good to grow the microorganism on filler
It is good, 0.1mL microelement nutritious liquids are added in every 10L water distributions, are formulated as follows：CaCl2·2H2O 1200mg/L, MgSO4·
7H2O 1100mg/L, ZnSO4·5H2O 20mg/L, MnCl4·4H2O 20mg/L, CuSO4·5H2O 13mg/L, NaMoO4·
2H2O 10mg/L.Operational factor is as follows：First oozes the flow of inlet water 0.5L/h of pond 4 soon, and second oozes the wet-dry ratio 1 of pond 10 soon：2, waterpower
Load period 6h, reflux ratio 100%.Monitoring method：COD uses potassium dichromate method, NH3- N uses reagent colorimetric method, TN
Using peroxide potassium sulfate-ultraviolet spectrophotometry, every 2~3d monitors an Inlet and outlet water water quality.
Monitoring result shows, the manpower rapid-infiltration device tends towards stability after operation 25d, effluent COD concentration is 2.1~
4.5mg/L, average removal rate is 96.8%；Water outlet NH3- N concentration is 2.9~6.3mg/L, and average removal rate is 95.3%；Go out
Water TN concentration is 17.5~19.2mg/L, and average removal rate is 81.8%.
One of ordinary skill in the art will be appreciated that embodiment described here is to aid in reader and understands this reality
With new principle, it should be understood that protection domain of the present utility model is not limited to such especially statement and embodiment.
One of ordinary skill in the art can these technical inspirations according to disclosed in the utility model make and various do not depart from this practicality
New substantive other various specific deformations and combination, these deformations and combination are still in protection domain of the present utility model.
Claims (6)
1. a kind of strengthen manpower rapid-infiltration devices of the low C/N than sewage water denitrification efficiency, it is characterised in that：Including first ooze soon unit,
Second oozes unit and reflux unit soon, wherein, described first oozes unit soon oozes pond (4) soon including intake pool (1) and first, described
Second ooze soon unit including collecting-tank (5), water-locator (9) and be arranged at below water-locator (9) second ooze pond (10), institute soon
Stating reflux unit is included by the tank that flows back (11) and water pump (12), and the intake pool (1), first ooze pond (4), collecting-tank soon
(5), between water-locator (9), and described second oozes pond (10), backflow tank (11) soon, water pump respectively leads between (12)
Piping is sequentially connected with, and the delivery port of the water pump (12) oozes pond (4) with first and is connected by pipeline soon, the backflow tank
(11) water is discharged and flowed back according to setting reflux ratio.
2. according to manpower rapid-infiltration devices of the low C/N of reinforcing than sewage water denitrification efficiency described in claim 1, it is characterised in that：It is described
First oozes pond (4) soon uses upstream water intake mode, in it by it is lower and on set gradually breeze way one, packing section one, fillter section
And water exit end.
3. according to manpower rapid-infiltration devices of the low C/N of reinforcing than sewage water denitrification efficiency described in claim 1, it is characterised in that：It is described
Second oozes pond (10) soon uses downstream water intake mode, sets gradually inlet segment, packing section two and buffering in it from top to bottom
Section two.
4. according to any described manpower rapid-infiltration devices of the low C/N of reinforcing than sewage water denitrification efficiency of claim 1-3, its feature exists
In：Described first ooze pond (4) soon residing for horizontal level be not higher than intake pool (1), intake pool (1) and first are oozed between pond (4) soon
Pipeline on regulating valve one (2) and flowmeter one (3) are installed.
5. according to any described manpower rapid-infiltration devices of the low C/N of reinforcing than sewage water denitrification efficiency of claim 1-3, its feature exists
In：Horizontal level residing for the water-locator (9) is not higher than collecting-tank (5), and collecting-tank (5) and second ooze the pipe between pond (10) soon
Timer (6), regulating valve two (7) and flowmeter two (8) are installed on road.
6. according to any described manpower rapid-infiltration devices of the low C/N of reinforcing than sewage water denitrification efficiency of claim 1-3, its feature exists
In：Flowmeter three (13) is installed, the refluxing portion leads on the pipeline between the backflow tank (11) and water pump (12)
Excessively stream gauge three (13) controls reflux ratio.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720026160.2U CN206553273U (en) | 2017-01-10 | 2017-01-10 | It is a kind of to strengthen manpower rapid-infiltration devices of the low C/N than sewage water denitrification efficiency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720026160.2U CN206553273U (en) | 2017-01-10 | 2017-01-10 | It is a kind of to strengthen manpower rapid-infiltration devices of the low C/N than sewage water denitrification efficiency |
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| CN206553273U true CN206553273U (en) | 2017-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127955A (en) * | 2019-06-12 | 2019-08-16 | 成都工业学院 | A kind of double pond manual controlled infusions and method for low C/N than wastewater efficient denitrogenation |
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2017
- 2017-01-10 CN CN201720026160.2U patent/CN206553273U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127955A (en) * | 2019-06-12 | 2019-08-16 | 成都工业学院 | A kind of double pond manual controlled infusions and method for low C/N than wastewater efficient denitrogenation |
| CN110127955B (en) * | 2019-06-12 | 2024-04-30 | 成都工业学院 | Double-pond artificial rapid infiltration system and method for high-efficiency denitrification of low-C/N ratio sewage |
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