CN206173173U - Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged - Google Patents
Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged Download PDFInfo
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- CN206173173U CN206173173U CN201621054450.XU CN201621054450U CN206173173U CN 206173173 U CN206173173 U CN 206173173U CN 201621054450 U CN201621054450 U CN 201621054450U CN 206173173 U CN206173173 U CN 206173173U
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Abstract
The utility model relates to a rural denitrification of wastewater dephosphorization processing apparatus that no mud discharged, it includes that AAO dominant reaction pond, anaerobism release the phosphorus pond, release the chemical phosphorus removal pond of being connected in the phosphorus pond with the anaerobism, AAO dominant reaction pond including the anaerobism pond that connects gradually, oxygen deficiency pond, good oxygen pond, thoughtlessly congeal the reaction zone, deposit filtering ponds, AAO dominant reaction pond still includes sludge return pipe, excess sludge pipe, excess sludge backwash pump. The settled sludge who deposits filtering ponds passes through the excess sludge pump promotes to be released the phosphorus pond to the anaerobism and carries out the anaerobism and release phosphorus, and the mud of releasing behind the phosphorus deposits, deposits back return sludge extremely continuing to participate in inhaling the phosphorus reaction in the oxygen deficiency pond, makes like this the utility model discloses can effectively realize the dephosphorization denitrogenation of rural sewage under the condition that no mud discharged handles.
Description
Technical field
The utility model is related to a kind of sewage-treatment plant, more specifically, more particularly to a kind of rural area without mud discharging
Sewage denitrification and dephosphorization processing meanss.
Background technology
With the raising year by year of urban wastewater treatment rate, urban wastewater treatment facility has been achieved with great success, improves agriculture
Village's wastewater treatment rate, construction of rural Environmental Protection Infrastructure construction is referred to as following emphasis.Since 2015, national many provinces and cities are all
New round Environmental Protection Infrastructure will be started to build, emphasis implements the key project such as a collection of town and country sewage treatment plant and supporting pipe network,
Accomplish " comprehensive planning, cover comprehensively, none is slipped through the net ", wastewater treatment rate is improved conscientiously, town and country quality of water environment is improved comprehensively.Such as
Sewage disposal technology is applied to scattered rural area by what, must be studied with which type of technology and process value.
For rural sewage treatment, country sewage concentration is low, and sludge quantity is relatively fewer, is not suitable for focusing on disposal, point
Dissipate to process and do not possess scale effect again.Recent domestic also has many with regard to Nitrogen/Phosphorus Removal sewage treatment process
Research report, but generally intermediate concentration town sewage is dealt with objects, and main research is how to improve Nitrogen/Phosphorus Removal,
Rare seeing is specifically designed for how reducing system sludge discharge quantifier elimination report simultaneously in simultaneous phosphorus and nitrogen removal, and also there is not yet
To the research report for being capable of achieving the not processing meanss of spoil disposal again with denitrogenation dephosphorizing function.
Accordingly, it would be desirable to study can reduce while one kind can make country sewage stably reaching standard sludge yield, very again as far as possible
To the processing meanss of not blowdown mud.
Utility model content
The purpose of this utility model is to provide a kind of dephosphorization denitrogenation, mud discharging suitable for processing domestic sewage in rural areas
Few even processing meanss without mud discharging, efficiently solve the handling problems of excess sludge.
To solve above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging, including A/A/O main reactions pond, anaerobism release
Phosphorus pond and the chemical dephosphorization pond of anaerobic phosphorus releasing pool connection, the A/A/O main reactions pond includes anaerobic pond, the anoxic being sequentially connected
Pond, Aerobic Pond, coagulating area, sedimentation and filtration ditch, the A/A/O main reactions pond also include mud return line, excess sludge pipe,
Residual sludge reflux pump；
The top of the anaerobic pond is provided with the water inlet pipe entered for sewage, and the sedimentation and filtration ditch is provided with outlet pipe and first
Discharge pipeline；
The anaerobic phosphorus releasing pool is provided with anaerobic phosphorus releasing pool water inlet pipe, the first enters mud pipe, the second discharge pipeline, the anaerobism and releases
Phosphorus pond water inlet pipe is connected with the water inlet pipe；Second discharge pipeline is connected with the second enters mud pipe being arranged in anoxic pond；Institute
State anaerobic phosphorus releasing pool water inlet pipe and be provided with the first motor-driven valve, second discharge pipeline is provided with the second motor-driven valve；
One end of the residual sludge reflux pump is connected with first discharge pipeline, the residual sludge reflux pump it is another
End is connected with the mud return line；
One end of the mud return line is connected with the anaerobic pond, the other end and coagulating of the mud return line
Area connects, and the mud return line is provided with the 3rd motor-driven valve, by controlling the 3rd motor-driven valve with by the dirt of sedimentation and filtration ditch
Mud is back to anaerobic pond or coagulating area；
One end of the excess sludge pipe is connected with the residual sludge reflux pump, the other end of the excess sludge pipe with
The enters mud pipe connection, the excess sludge pipe is provided with the 4th motor-driven valve, the sludge of sedimentation and filtration ditch is discharged into into anaerobic phosphorus release
Pond.
The water inlet pipe of the anaerobic pond is controlled flooding time and flow by a total intake pump.A/A/O master is anti-
Ying Chi adopts continuum micromeehanics, the method for operation of continuous effluent, i.e. water inlet passes sequentially through anaerobism, anoxic, aerobic, coagulating sedimentation, mistake
Filter processing links are finally discharged, and anaerobic phosphorus releasing pool and chemical dephosphorization pond are by the way of intermittent duty.In A/A/O main reactions pond
When operation, by sludge reflux after the precipitation of sedimentation and filtration ditch to anaerobic pond, as needed, residue is dirty for residual sludge reflux pump
Mud reflux pump can be by sludge reflux after the precipitation of sedimentation and filtration ditch to coagulating area.Or as needed, by sedimentation and filtration ditch
Precipitation after sludge anaerobic phosphorus releasing pool discharged into by residual sludge reflux pump carry out anaerobic phosphorus release, release phosphorus and terminate after mud-water separation,
Rich phosphorus sewage carries out the solid phosphorus of chemistry into chemical dephosphorization pond, Gu the sewage Jing drainpipes after phosphorus drain into A/A/O main reactions pond to enter
One step removes ammonia nitrogen therein and organic substance.
In the utility model, by arranging coagulating area in the end of Aerobic Pond, using partial reflux sludge and dirt
Water carries out coagulating, then through precipitation, greatly improves suspension in sewage（SS）Removal effect, advantageously reduce water outlet total
Phosphorus（TP）Index concentration, while using polyP bacteria suction phosphorus ability by sewage low phosphorus hydrochlorate enrichment get up, Ran Houzai
Phosphorus is released by bypass to remove phosphorus from system, it is possible to achieve, without stable operation under mud discharging, this dephosphorization mode can for system
So that denitrifying phosphorus removing bacteria progressively becomes dominant bacteria, to improve sewage in TP and total nitrogen（TN）Removal effect, it is to avoid it is big
The Dephosphorization reagent of amount enters biochemical system affects the activity of sludge, the chemical dephosphorization of small range to contribute to reducing chemical agent use
Amount, reduces cost.
By the application of the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging, it is possible to achieve sewage
Denitrogenation dephosphorizing, while reduce sludge, even discharged without residual mud.
Further, the described country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging is also returned including mixed liquor
Flow tube and the 5th motor-driven valve being arranged on mixed-liquor return pipe, the Aerobic Pond is provided with mixed-liquor return pump；The mixing
One end of liquid return duct is connected with the mixed-liquor return pump, and the other end and the anoxic pond of the mixed-liquor return pipe connect
Connect, by the mixed-liquor return of Aerobic Pond to anoxic pond.
Further, the anaerobic phosphorus releasing pool is additionally provided with chemical feed pipe, the first agitator for throwing in carbon source.
Further, first enters mud pipe is provided with the 9th motor-driven valve.
Further, the chemical dephosphorization pond be provided be connected with the anaerobic phosphorus releasing pool supernatant delivery pipe, equipped with
The drainpipe of six motor-driven valves, valvular 3rd discharge pipeline of installation, the second agitator, it is electric that the supernatant delivery pipe is provided with the 7th
Dynamic valve；The drainpipe is connected with the water inlet pipe.
The precipitating sludge of sedimentation and filtration ditch is promoted to anaerobic phosphorus releasing pool and carries out anaerobic phosphorus release by the residual sludge pump, releases
Sludge after phosphorus is precipitated, and sludge reflux continues to participate in suction phosphorus reaction to the anoxic pond after precipitation, and supernatant drains into chemistry
Dephosphorization pond carries out being precipitated after fully reaction, and the material for precipitating herein can be carried out as the raw material of phosphate fertilizer by the 3rd discharge pipeline
Reclaim.Supernatant can drain into anaerobic pond further to remove ammonia nitrogen therein and organic substance by the drainpipe.
Further, the sedimentation and filtration ditch is additionally provided with inclined tube, filtrate, backwash gas distribution pipe and backwash gas distribution pipe
The recoil air inlet pipe of connection/with recoil the first air blast for being connected of air inlet pipe；The filtrate is located at the upper of the sedimentation and filtration ditch
Portion, the inclined tube is located at the middle part of the sedimentation and filtration ditch；The backwash gas distribution pipe is located at the bottom for stating sedimentation and filtration ditch.It is logical
Cross and the inclined tube and filtrate are set, to improve mud-water separation effect.In addition, while A/A/O main reactions pond is run, can basis
Need, filtrate is backwashed by backwashing gas distribution pipe, to prevent filter clogging.
Further, the Aerobic Pond be additionally provided with the second air blast and second air blast connection air hose and
Aeration tube, the filler of air hose connection；The aeration tube is located at the bottom of Aerobic Pond.Due to country sewage influent concentration compared with
Low, activated sludge is not easy culture, can preferably retain microorganism by arranging filler, ensures treatment effect.
Further, it is provided with flap in the coagulating area.The flap can play tiny flocculation effect, after raising
Continuous sedimentation effect and to phosphatic removal effect.
Further, the water inlet pipe is provided with the arm for extending to the anoxic pond.When the total nitrogen of water inlet is higher, and it is good
Organic matter is not enough in oxygen pond, and the water inlet pipe extends to anoxic pond and can be directly entered anoxic pond with a part of sewage of flexible modulation,
Required organic matter carbon source is provided for denitrification denitrogenation.
Further, the bottom of the sedimentation and filtration ditch is in infundibulate.
Further, the angle angle between the side and ground of the bottom of the sedimentation and filtration ditch（A）For 40 ° ~
60 °, preferably 50 °.
The utility model also provides the concrete process step of above-mentioned processing meanss：
1）Water inlet：Continuum micromeehanics, by intake pump control, intake pump opens water inlet when bringing into operation, by Valve controlling
Flow of inlet water.
2）Anaerobic phosphorus release：Water inlet flows through anaerobic pond, stops, and is returned using the low molecule organic matter and sedimentation and filtration ditch in water inlet
The sludge of stream, polyP bacteria is produced releases phosphorus effect.
3）Anoxic denitrification：Release the later sewage of phosphorus and enter anoxic pond, using the organic substance in water under anaerobic condition
There is denitrification denitrogenation with the mixed liquor of backflow, remove while entering anoxic pond from the sludge of anaerobic phosphorus releasing pool backflow and producing denitrification
Phosphorus.
4）Nitrification and organic matter removal：The sewage of anoxic pond enters Aerobic Pond, opens air blast to Aerobic Pond aeration, and controls
The aeration rate of whole aeration phase is made, dissolved oxygen in Aerobic Pond is made（DO）Maintain between 1.5~2.0, microorganism is using in water
DO decomposition of organic matter simultaneously produces nitration reaction.
5）Coagulating sedimentation is filtered：In Aerobic Pond end, Jing aerobic nitrifications completely sewage enter coagulating area, by with
There is coagulation and flocculation in the partial sludge of sedimentation and filtration ditch backflow, the later mixed liquor that flocculates is sunk into sedimentation basin
Form sediment, discharge finally by after media filtration.
6）Backwash：Anaerobism pool water level is caused to reach Chi Dingshi when filtrate occurs blocking, it is anti-that unlatching air blast carries out gas and water
Rinse.
7）Anaerobic phosphorus release and the solid phosphorus of chemistry：Concrete operations mode is to open the 9th motor-driven valve of anaerobic phosphorus releasing pool, while closing
3rd motor-driven valve and the 4th motor-driven valve, anaerobic phosphorus release is entered using residual sludge reflux pump by precipitating sludge in sedimentation and filtration ditch
Pond, closes the 9th motor-driven valve, while opening the 3rd motor-driven valve, and opens the first motor-driven valve, by anaerobic phosphorus releasing pool water inlet pipe to
Injection water inlet in pond, closes the first motor-driven valve, stops water inlet；After sewage injection is finished, agitator in anaerobic phosphorus releasing pool is opened, entered
Row anaerobic phosphorus release, makes mixed liquor phosphate concn in the pond reach 35 ~ 40mg/L, releases after phosphorus terminates, and closes agitator and is sunk
Form sediment.After precipitation 30min, the 8th motor-driven valve on supernatant delivery pipe is opened, the phosphorous supernatant in anaerobic phosphorus releasing pool is arranged
Enter chemical dephosphorization pond, supernatant discharge closes the 8th motor-driven valve after finishing, while opening the agitator in chemical dephosphorization pond.Anaerobism is released
Remaining sludge and supernatant are back to anoxic pond by the second discharge pipeline in phosphorus pond.
Compared with prior art, the beneficial effects of the utility model are：
The utility model is suitable for the rural sewage treatment of low concentration, and it can for a long time be transported under conditions of not spoil disposal
OK, while solving the problems, such as that microbial biomass lacks and mud discharging, the dephosphorization and denitrification effect of further intensifying device.
Description of the drawings
Fig. 1 is the floor map in the A/A/O main reactions pond described in embodiment 1.
Fig. 2 is the floor map in the anaerobic phosphorus releasing pool described in embodiment 1 and chemical dephosphorization pond.
Fig. 3 is the generalized section in the A/A/O main reactions pond described in embodiment 1.
In figure, 1-anaerobic pond, 2-anoxic pond, 3-Aerobic Pond, 4-coagulating area, 5-sedimentation and filtration ditch, 6-detest
Oxygen P releasing tank, 7-chemical dephosphorization pond, 8-water inlet pipe, 9-outlet pipe, 10-mixed-liquor return pipe, 11-mud return line,
12-excess sludge pipe, 13-air hose, 14-backwash air inlet pipe, 15-anaerobic phosphorus releasing pool water inlet pipe, 16-the first enter mud
Pipe, 17-chemical feed pipe, the 18-the second discharge pipeline, the 19-the first agitator, 20-supernatant delivery pipe, 21-drainpipe, 22-
3rd discharge pipeline, the 23-the second agitator, the 24-the second enters mud pipe, 25-gas flowmeter, 26-mixed-liquor return pump, 27-
Residual sludge reflux pump, 28-filler, 29-aeration tube, 30-inclined tube, the 31-the first discharge pipeline, 32-filtrate, 33-recoil
Wash cloth tracheae, the 34-the three motor-driven valve, the 35-the four motor-driven valve, the 36-the five motor-driven valve, the 37-the eight motor-driven valve, 38-the first
Motor-driven valve, the 39-the second motor-driven valve, the 40-the seven motor-driven valve, the 41-the six motor-driven valve, 42-valve, the 43-the nine motor-driven valve,
44-arm.
Specific embodiment
The utility model is further described with reference to specific embodiment.Wherein, being for illustration only property of accompanying drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, it is impossible to be interpreted as the restriction to this patent；In order to this reality is better described
With new embodiment, accompanying drawing some parts have omission, zoom in or out, and do not represent the size of actual object；To ability
For field technique personnel, some known features and its explanation in accompanying drawing may be omitted and will be understood by.
Embodiment 1
A kind of country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging, including A/A/O main reactions pond, anaerobism release
Phosphorus pond 6 and chemical dephosphorization pond 7, A/A/O main reactions pond is anti-including the anaerobic pond 1, anoxic pond 2, Aerobic Pond 3, coagulation being sequentially connected
Area 4, sedimentation and filtration ditch 5 are answered, in addition A/A/O main reactions pond also includes that mud return line 11, excess sludge pipe 12, excess sludge are returned
Stream pump 27.
The top of anaerobic pond 1 is provided with the water inlet pipe 8 flowed into for sewage, and water inlet pipe 8 is provided with the arm for extending to anoxic pond 2
44.Anoxic pond 2 is provided with the second enters mud pipe 24.Anaerobic pond 1, anoxic pond 2 respectively have 1 underwater stirrer.
The air hose 13 and the aeration of air hose 13 of the second air blast and the connection of the second air blast are provided with Aerobic Pond 3
Pipe 29, filler 28, mixed-liquor return pump 26, aeration tube 29 is located at the bottom of Aerobic Pond 3, and on air hose 13 gas flow is provided with
Meter 25.Aeration is carried out by the open and close of the second air blast and stop aeration.
Flap is provided with coagulating area 4, the bottom in coagulating area 4 connects with sedimentation and filtration ditch 5.
The top of sedimentation and filtration ditch 5 is provided with outlet pipe 9, and outlet pipe 9 is provided with the 8th motor-driven valve 37, in sedimentation and filtration ditch 5
The recoil for being provided with inclined tube 30, the first discharge pipeline 31, filtrate 32, backwash gas distribution pipe 33 and the backwash connection of gas distribution pipe 33 is entered
Tracheae 14 and the first air blast of recoil air inlet pipe connection, filtrate 32 is located at the top of sedimentation and filtration ditch 5, and inclined tube 30 is located at heavy
The middle part of shallow lake filtering ponds 5, backwashes the bottom that gas distribution pipe 33 is located at sedimentation and filtration ditch 5.The bottom of sedimentation and filtration ditch 5 is in funnel
Shape, the angle A of the angle between its side and ground is 40 ° ~ 60 °.
Anaerobic phosphorus releasing pool 6 is provided with anaerobic phosphorus releasing pool water inlet pipe 15, the first enters mud pipe 16, the chemical feed pipe for throwing in carbon source
17th, the second discharge pipeline 18, the first agitator 19, anaerobic phosphorus releasing pool water inlet pipe 15 is connected with water inlet pipe 8, the second discharge pipeline 18 and
Two enters mud pipes 24 connect.Anaerobic phosphorus releasing pool water inlet pipe 15 is provided with the first motor-driven valve 38, and it is electronic that the second discharge pipeline 18 is provided with second
Valve 39, the first enters mud pipe 16 is provided with the 9th motor-driven valve 39.
Chemical dephosphorization pond 7 is provided with supernatant delivery pipe 20, the row equipped with the 6th motor-driven valve 41 being connected with anaerobic phosphorus releasing pool 6
Water pipe 21, the 3rd discharge pipeline 22 for being provided with valve 42, the second agitator 23, supernatant delivery pipe 20 is provided with the 7th motor-driven valve 40
, drainpipe 21 is connected with water inlet pipe 8.
Mixed-liquor return pipe is provided with the 5th motor-driven valve 36, and one end and the mixed-liquor return pump 26 of mixed-liquor return pipe 10 connect
Connect, the other end of mixed-liquor return pipe 10 is connected with anoxic pond 2, by the mixed-liquor return of Aerobic Pond 3 to anoxic pond 2.
One end of residual sludge reflux pump 27 is connected with the first discharge pipeline 31, and its other end is connected with mud return line 11.
One end of mud return line 11 is connected with anaerobic pond 1, and the other end of mud return line 11 is connected with coagulating area 4, and sludge is returned
Flow tube 11 is provided with the 3rd motor-driven valve 34, by the sludge reflux of sedimentation and filtration ditch 5 to anaerobic pond 1 or coagulating area 4.It is remaining dirty
One end of mud pipe 12 is connected with residual sludge reflux pump 27, and the other end of excess sludge pipe 12 is connected with enters mud pipe 16, remaining dirty
Mud pipe 12 is provided with the 4th motor-driven valve 35, and the sludge of sedimentation and filtration ditch 5 is discharged into into anaerobic phosphorus releasing pool 6.
The method for carrying out sewage disposal using above-mentioned processing meanss is as follows：
The water inlet pipe 8 in A/A/O main reactions pond is controlled flooding time and flow by a total intake pump.A/A/O
Main reaction pond adopts continuum micromeehanics, the method for operation of continuous effluent, i.e. water inlet passes sequentially through anaerobism, anoxic, aerobic, coagulation and sinks
Form sediment, filtration treatment link is finally discharged.While A/A/O main reactions pond is run, mixed-liquor return pump 26 is by the end of Aerobic Pond 3
Mixed-liquor return to anoxic pond 2, residual sludge reflux pump 27 is by sludge reflux after the precipitation of sedimentation and filtration ditch 5 to anaerobic pond 1.
As needed, residual sludge reflux pump 27 can be by sludge reflux after the precipitation of sedimentation and filtration ditch 5 to coagulating area 4 simultaneously.Together
When as needed, by backwash air inlet pipe 14 backwashed, sludge after the precipitation of sedimentation and filtration ditch 5 is passed through as needed
Residual sludge reflux pump 27 discharges into anaerobic phosphorus releasing pool 6 and carries out anaerobic phosphorus release, releases phosphorus and terminates after mud-water separation, rich phosphorus sewage Jing supernatants
Liquid delivery pipe 20 carries out the solid phosphorus of chemistry into chemical dephosphorization pond 7, Gu the sewage Jing drainpipes 21 after phosphorus drain into A/A/O main reactions pond
Further to remove ammonia nitrogen therein and organic substance.
In the above-mentioned methods, more particularly, sludge after precipitation is drained into into anaerobism totally 3 times daily in sedimentation and filtration ditch 5 to release
Phosphorus pond 6 carries out anaerobic phosphorus release, precipitates Jing after anaerobic phosphorus release, and the sludge reflux after precipitation to anoxic pond 2 carries out suction phosphorus, supernatant row
The solid phosphorus of chemistry is carried out to chemical dephosphorization pond 7, the sludge quantity that anaerobic phosphorus releasing pool 6 is drained into every time is 0.8m.
Concrete process step is as follows：
1）Water inlet：Continuum micromeehanics, by intake pump control, intake pump opens water inlet when bringing into operation, by Valve controlling
Flow of inlet water.
2）Anaerobic phosphorus release：Water inlet flows through anaerobic pond, stops, and is returned using the low molecule organic matter and sedimentation and filtration ditch in water inlet
The sludge of stream, polyP bacteria is produced releases phosphorus effect.
3）Anoxic denitrification：Release the later sewage of phosphorus and enter anoxic pond, using the organic substance in water under anaerobic condition
There is denitrification denitrogenation with the mixed liquor of backflow, remove while entering anoxic pond from the sludge of anaerobic phosphorus releasing pool backflow and producing denitrification
Phosphorus.
4）Nitrification and organic matter removal：The sewage of anoxic pond enters Aerobic Pond, opens air blast to Aerobic Pond aeration, and controls
The aeration rate of whole aeration phase is made, dissolved oxygen in Aerobic Pond is made（DO）Maintain between 1.5~2.0, microorganism is using in water
DO decomposition of organic matter simultaneously produces nitration reaction.
5）Coagulating sedimentation is filtered：In Aerobic Pond end, Jing aerobic nitrifications completely sewage enter coagulating area, by with
There is coagulation and flocculation in the partial sludge of sedimentation and filtration ditch backflow, the later mixed liquor that flocculates is sunk into sedimentation basin
Form sediment, discharge finally by after media filtration.
6）Backwash：Anaerobism pool water level is caused to reach Chi Dingshi when filtrate occurs blocking, it is anti-that unlatching air blast carries out gas and water
Rinse.First air purge 10min, then 10min is washed, last gas and water washes 5min.
7）Anaerobic phosphorus release and the solid phosphorus of chemistry：3 anaerobic phosphorus releases and the solid phosphorus of chemistry are carried out daily, and anaerobic phosphorus release is participated in every time
Sludge quantity is 0.8m.Concrete operations mode is to open the valve 43 of anaerobic phosphorus releasing pool, while closing the 3rd motor-driven valve 34 and the 4th
Motor-driven valve 35, anaerobic phosphorus releasing pool is entered using residual sludge reflux pump by precipitating sludge in sedimentation and filtration ditch 5, treats anaerobic phosphorus releasing pool
When middle liquid level reaches 0.45m, valve 43 is closed, while opening the 3rd motor-driven valve 34, and the first motor-driven valve 38 is opened, by anaerobism
P releasing tank water inlet pipe 15 injects water inlet in pond, when liquid level reaches 0.9m in anaerobic phosphorus releasing pool, closes the first motor-driven valve 38, stops
Only intake；After sewage injection is finished, agitator in anaerobic phosphorus releasing pool is opened, carry out anaerobic phosphorus release 2h, make mixed liquor phosphorus in the pond
Hydrochlorate concentration reaches 35 ~ 40mg/L, releases after phosphorus terminates, and closes agitator and is precipitated；After precipitation 30min, supernatant is opened
The 8th motor-driven valve 40 on delivery pipe, by the phosphorous supernatant in anaerobic phosphorus releasing pool chemical dephosphorization pond is entered, and supernatant is racked up
The 8th motor-driven valve 40 is closed after finishing, while opening the agitator in chemical dephosphorization pond.Remaining sludge and supernatant in anaerobic phosphorus releasing pool
Liquid is back to anoxic pond by the second discharge pipeline.
Concrete application
Practical application is carried out to above-mentioned processing meanss, with the sanitary sewage in Xingning City of Guangdong Province Luo Fu towns as process object：
Example 1：It is 1000 tons to process the water yield processing meanss day, average chemical oxygen demand of intaking（COD）Less than 100mg/L,
Ammonia nitrogen（NH3-N）5 ~ 15mg/L of concentration, total nitrogen（TN）8 ~ 20mg/L of concentration, total phosphorus（TP）4 ~ 8mg/L of concentration, pH value 7 ~ 8, test
Temperature is 20 ~ 24 DEG C.Result of the test shows：When the sludge age in control A/A/O main reactions pond is in the case of endless, Jing goes out
Water COD concentration is less than 20mg/L, the NH of processing meanss water outlet3- N concentration is in below 2mg/L, and the TN concentration of processing meanss water outlet is low
In 10mg/L, the TP concentration of processing meanss water outlet is less than 0.5mg/L.Water outlet reaches comprehensively《Urban wastewater treatment firm pollutant is arranged
Put standard》One-level A class standard.Process of the test is without mud discharging.
Example 2：It is 1000 tons to process the water yield processing meanss day, and average COD of intaking is less than 80mg/L, NH3- N concentration 5 ~
14mg/L, TN 8 ~ 18mg/L of concentration, TP 3 ~ 6mg/L of concentration, pH value 7 ~ 8, test temperature is 20 ~ 24 DEG C.Result of the test shows：When
In the case of endless, the COD concentration of processing meanss water outlet is less than 15mg/L, place to control A/A/O main reactions pond sludge age
The NH of reason device water outlet3- N concentration is less than 10mg/L in below 1mg/L, processing meanss water outlet TN concentration, processing meanss water outlet
TP concentration is less than 0.5mg/L.Water outlet reaches comprehensively《Urban wastewater treatment firm pollutant emission standard》One-level A class standard.Test
Process is without mud discharging.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need to give all of embodiment
It is exhaustive.All any modification, equivalent and improvement made within spirit of the present utility model and principle etc., should be included in
Within the utility model scope of the claims.
Claims (10)
1. a kind of country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging, including A/A/O main reactions pond, anaerobic phosphorus release
Pond（6）With anaerobic phosphorus releasing pool（6）The chemical dephosphorization pond of connection（7）, the A/A/O main reactions pond includes the anaerobism being sequentially connected
Pond（1）, anoxic pond（2）, Aerobic Pond（3）, coagulating area（4）, sedimentation and filtration ditch（5）, it is characterised in that the A/A/O master
Reaction tank also includes mud return line（11）, excess sludge pipe（12）, residual sludge reflux pump（27）；
The anaerobic pond（1）Top be provided with for sewage enter water inlet pipe（8）, the sedimentation and filtration ditch（5）It is provided with outlet pipe
（9）With the first discharge pipeline（31）；
The anaerobic phosphorus releasing pool（6）It is provided with anaerobic phosphorus releasing pool water inlet pipe（15）, the first enters mud pipe（16）, the second discharge pipeline
（18）；The anaerobic phosphorus releasing pool water inlet pipe（15）With the water inlet pipe（8）Connection；Second discharge pipeline（18）It is scarce with being arranged on
Oxygen pond（2）On the second enters mud pipe（24）Connection；The anaerobic phosphorus releasing pool water inlet pipe（15）It is provided with the first motor-driven valve（38）, it is described
Second discharge pipeline（18）It is provided with the second motor-driven valve（39）；
The residual sludge reflux pump（27）One end and first discharge pipeline（31）Connection, the residual sludge reflux pump
（27）The other end and the mud return line（11）Connection；
The mud return line（11）One end and the anaerobic pond（1）Connection, the mud return line（11）The other end with
Coagulating area（4）Connection, the mud return line（11）It is provided with the 3rd motor-driven valve（34）, by controlling the 3rd motor-driven valve
（34）With by sedimentation and filtration ditch（5）Sludge reflux to anaerobic pond（1）Or coagulating area（4）；
The excess sludge pipe（12）One end and the residual sludge reflux pump（27）Connection, the excess sludge pipe（12）'s
The other end and the enters mud pipe（16）Connection, the excess sludge pipe（12）It is provided with the 4th motor-driven valve（35）, precipitation is filtered
Pond（5）Sludge discharge into anaerobic phosphorus releasing pool（6）.
2. the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging according to claim 1, it is characterised in that
Also include mixed-liquor return pipe（10）With the 5th motor-driven valve being arranged on mixed-liquor return pipe（36）, the Aerobic Pond（3）Place
It is provided with mixed-liquor return pump（26）；The mixed-liquor return pipe（10）One end and the mixed-liquor return pump（26）Connection,
The mixed-liquor return pipe（10）The other end and the anoxic pond（2）Connection, by Aerobic Pond（3）Mixed-liquor return to lack
Oxygen pond（2）.
3. the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging according to claim 1, it is characterised in that
The anaerobic phosphorus releasing pool（6）It is additionally provided with the chemical feed pipe for throwing in carbon source（17）, the first agitator（19）.
4. the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging according to claim 1, it is characterised in that
The chemical dephosphorization pond（7）It is provided with and the anaerobic phosphorus releasing pool（6）The supernatant delivery pipe of connection（20）, to be provided with the 6th electronic
Valve（41）Drainpipe（21）, valve is installed（42）The 3rd discharge pipeline（22）, the second agitator（23）, the supernatant row
Put pipe（20）It is provided with the 7th motor-driven valve（40）；The drainpipe（21）With the water inlet pipe（8）Connection.
5. the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging according to claim 1, it is characterised in that
The sedimentation and filtration ditch（5）It is additionally provided with inclined tube（30）, filtrate（32）, backwash gas distribution pipe（33）With backwash gas distribution pipe
（33）The recoil air inlet pipe of connection（14）With the first air blast of recoil air inlet pipe connection；The filtrate（32）Positioned at described heavy
Shallow lake filtering ponds（5）Top, the inclined tube（30）Positioned at the sedimentation and filtration ditch（5）Middle part；The backwash gas distribution pipe
（33）Positioned at stating sedimentation and filtration ditch（5）Bottom.
6. the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging according to claim 1, it is characterised in that
The Aerobic Pond（3）It is additionally provided with the air hose of the second air blast and second air blast connection（13）With air hose（13）
The aeration tube of connection（29）, filler（28）；The aeration tube（29）Positioned at Aerobic Pond（3）Bottom.
7. the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging according to claim 1, it is characterised in that
The coagulating area（4）Inside it is provided with flap.
8. the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging according to claim 1, it is characterised in that
The water inlet pipe（8）It is provided with and extends to the anoxic pond（2）Arm（44）.
9. the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging according to claim 1, it is characterised in that
The sedimentation and filtration ditch（5）Bottom be in infundibulate.
10. the country sewage dephosphorization denitrogenation sewage-treatment plant without mud discharging according to claim 1, its feature exists
In the sedimentation and filtration ditch（5）Bottom side and ground between angle angle（A）For 40 ° ~ 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621054450.XU CN206173173U (en) | 2016-09-14 | 2016-09-14 | Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621054450.XU CN206173173U (en) | 2016-09-14 | 2016-09-14 | Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged |
Publications (1)
| Publication Number | Publication Date |
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| CN206173173U true CN206173173U (en) | 2017-05-17 |
Family
ID=58675490
Family Applications (1)
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| CN201621054450.XU Active CN206173173U (en) | 2016-09-14 | 2016-09-14 | Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged |
Country Status (1)
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| CN (1) | CN206173173U (en) |
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| CN107814439A (en) * | 2017-12-14 | 2018-03-20 | 凌志环保股份有限公司 | A kind of new rural village domestic sewage denitrifying-dephosphorizing purifies wet land system |
| CN107814468A (en) * | 2017-12-14 | 2018-03-20 | 凌志环保股份有限公司 | A kind of domestic sewage in rural areas purifies wet land system |
| CN107814467A (en) * | 2017-12-14 | 2018-03-20 | 凌志环保股份有限公司 | A kind of simple domestic sewage in rural areas wet land treating system |
| CN108585346A (en) * | 2018-03-21 | 2018-09-28 | 湖南艾布鲁环保科技股份有限公司 | A kind of container combined type flowing carrier type sewage disposal device and method |
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| CN109809653A (en) * | 2019-04-02 | 2019-05-28 | 大连迈克环境科技工程有限公司 | A kind of middle and high concentration composite wastewater denitrogenation dephosphorizing treatment process |
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| CN109809653A (en) * | 2019-04-02 | 2019-05-28 | 大连迈克环境科技工程有限公司 | A kind of middle and high concentration composite wastewater denitrogenation dephosphorizing treatment process |
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| CN109867361B (en) * | 2019-04-19 | 2024-04-16 | 上海市市政规划设计研究院有限公司 | Multi-mode activated sludge process sewage treatment integrated device and sewage treatment method |
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