CN106116050A - The sewage disposal system of a kind of efficient dephosphorization and processing method thereof - Google Patents
The sewage disposal system of a kind of efficient dephosphorization and processing method thereof Download PDFInfo
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- CN106116050A CN106116050A CN201610648039.3A CN201610648039A CN106116050A CN 106116050 A CN106116050 A CN 106116050A CN 201610648039 A CN201610648039 A CN 201610648039A CN 106116050 A CN106116050 A CN 106116050A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses sewage disposal system and the processing method thereof of a kind of efficient dephosphorization, including one-level pretreatment system and two stage biological processing system；Also include the advanced treatment system being arranged at described two stage biological its outfan of processing system；Described advanced treatment system includes potassium permanganate composites and sterilization canal；The excess sludge that described two stage biological processing system and potassium permanganate composites are discharged enters sludge concentration tank by excess sludge discharge bank of tubes；The method comprises the following steps: the first step, and in rapid reaction zone, the phosphorus containg substances in sewage forms aluminum phosphate；Second step, aluminum phosphate flocculation forms alumen ustum；3rd step, phosphorous alumen ustum precipitation will enter in mud, it is achieved mud-water separation；4th step, sterilizes and discharges.The sewage disposal system of the efficient dephosphorization of the present invention and processing method thereof, after potassium permanganate composites is located at two stage biological processing system, use chemical method dephosphorization, it is achieved efficient dephosphorization and the effect of reduction concentration of suspension, improves effluent quality.
Description
Technical field
A kind of method that the present invention relates to chemical dephosphorization, is specifically related to sewage disposal system and the place thereof of a kind of efficient dephosphorization
Reason method, belongs to technical field of sewage.
Background technology
Existing chemical dephosphorization mainly has preposition dephosphorization, synchronizes dephosphorization and rearmounted dephosphorization, but all there is bigger lacking
Point；Wherein, preposition dephosphorization there is problems in that one) total sludge yield increase；Two) Substrate hydrolysis is too much, affects denitrification anti-
Should；Three) unfavorable to improving sludge index；Synchronize dephosphorization and there is problems in that one) increase sludge yield；Two) acid metal is used
Salt medicament can make pH value drop to below optimum range, unfavorable to nitration reaction；Three) nitrate mud and excess sludge are mixed in one
Rising, reclaim phosphate the most difficult, under this external anaerobic state, in mud, phosphorus can discharge；Four) long-term delivering medicament, dirty to activity
The activity of mud has large effect；And rearmounted dephosphorization its required investment is big, operating cost is high.Therefore, in order to solve problem above,
A kind of method proposing new chemical dephosphorization.
Summary of the invention
For solving the problems referred to above, the present invention proposes sewage disposal system and the processing method thereof of a kind of efficient dephosphorization, will
After potassium permanganate composites is located at two stage biological processing system, use chemical method dephosphorization, by adding medicament, control adding of agent
Amount, mud layer height and returned sludge concentration, it is achieved efficient dephosphorization and the effect of reduction concentration of suspension, improve effluent quality.
The sewage disposal system of the efficient dephosphorization of the present invention, including one-level pretreatment system and two stage biological processing system；
Described its outfan of one-level pretreatment system is connected with two stage biological processing system input, and its input connects sewage transport
Pipeline；Also include the advanced treatment system being arranged at described two stage biological its outfan of processing system；Described advanced treatment system
Including potassium permanganate composites and sterilization canal；The excess sludge that described two stage biological processing system and potassium permanganate composites are discharged passes through
Excess sludge discharge bank of tubes enters sludge concentration tank；
Described potassium permanganate composites is made up of rapid reaction zone, flocculation zone and settling zone；Side, described rapid reaction zone is provided with
The inlet pipeline being connected with two stage biological processing system；Side, described settling zone is provided with the outlet pipeline being connected with canal of sterilizing；
Described rapid reaction zone is provided with variable ratio frequency changer flash mixer, can adjust mixing speed according to the difference of inflow, it is simple to
Medicament is sufficiently mixed with potassium permanganate composites water inlet；Described flocculation zone is provided with guide shell and frequency conversion agitator, is stirred by control
Speed control flocculating effect, if rotating speed is too fast or the slowest, be all unfavorable for the formation of alumen ustum；It is provided with below described guide shell
Mud return line；One mud scraper and Duo Gen probe tube are installed in described settling zone；Described mud return line one end and flocculation zone
Connecting, its other end is connected to settling zone；Described excess sludge discharge pipe one end is connected with settling zone, and its other end is connected to dirt
Mud thickener, for the discharge of excess sludge.
Further, the sewage in described sewage running piping processes system through one-level pretreatment system, two stage biological successively
Water outlet is discharged by drain pipe after system and advanced treatment system.
Further, the mud in described sludge concentration tank is sent outside after processed.
Further, described rapid reaction zone has added aluminium polychlorid；Described flocculation zone has added polyacrylamide
Amine.
As preferred embodiment, five probe tubes are installed in described settling zone；Its interior mud of described settling zone
Mud layer height is not higher than by the height of supreme second probe tube in bottom, and arranges by supreme second its distance of probe tube in bottom
Settling zone bottom level is 150cm；Too high mud layer height easily makes mud drift out inclined tube, and the particularly water yield is unstable to bottom
The impact of mud, it is easier to make mud flow out.
The sewage water treatment method of the efficient dephosphorization of the present invention, comprises the following steps:
The first step, two stage biological processing system water outlet enters the rapid reaction zone of potassium permanganate composites by inlet pipeline, controls
Variable ratio frequency changer flash mixer frequency is 45Hz, and adds aluminium polychlorid so that the phosphorus containg substances in sewage forms aluminum phosphate, soon
Speed reaction zone is provided with flow gauge, and the amount below equation adding aluminium polychlorid calculates:
mPAC=(CTP0- CTP1) × Q0×22.2/1000；
Wherein, mPACFor aluminium polychlorid dosage, kg/d；
CTP0For water inlet total phosphorus concentration, mg/L；
CTP1For water outlet total phosphorus concentration, mg/L；
Q0For potassium permanganate composites flow of inlet water, m3/d；
22.2 represent removal 1kg phosphorus, need to add the aluminium polychlorid of 22.2kg；
Second step, enters flocculation zone by the water outlet of the above-mentioned first step, and controlling frequency conversion agitator frequency is 40Hz, sludge reflux concentration
Being 20 ~ 30mg/L, the amount of returned sludge and the ratio of amount of inlet water control between 2% ~ 5%, and add polyacrylamide, make phosphorus
Acid aluminum flocculation forms alumen ustum；Aluminium polychlorid and polyacrylamide proportion control between 60 ~ 100:1, by the first step
Computing formula can obtain the dosage of aluminium polychlorid, calculate polyacrylamide by the ratio of polyacrylamide with aluminium polychlorid
The dosage of amine；
3rd step, enters settling zone by the water outlet of above-mentioned second step, and alumen ustum forms precipitation in settling zone, and phosphorous alumen ustum precipitation will
Enter in mud, it is achieved mud-water separation, thus reduce the total phosphorus concentration in sewage；Settling zone partial sludge passes through mud return line
Being back in flocculation zone guide shell, sludge reflux concentration is 20 ~ 30mg/L, and excess sludge enters sludge concentration tank, carries out mud
Thickening；
4th step, enters the water outlet of above-mentioned 3rd step sterilization canal and carries out disinfection, and last qualified discharge, water outlet total phosphorus concentration is
0.27mg/L, concentration is relatively low, and effluent quality is preferable, can reach town sewage discharge standard.
As preferred embodiment, in described 3rd step, control settling zone its interior mud mud layer height not higher than by
The height of supreme second probe tube in bottom.
The present invention compared with prior art, the sewage disposal system of the efficient dephosphorization of the present invention and processing method thereof, add
The big motility of chemical dephosphorization, convenience, effectiveness and stability；Reduce the blindness adding medicament, thus greatly save
Cost of sewage disposal；Changing greatly for amount of inlet water, water quality is unstable, and the water inlet phosphorus content change problem such as greatly, by mensuration life
After thing process, total phosphorus content in water outlet, calculates the amount needing to remove total phosphorus, changes the amount adding medicament, it is possible to quickly, have
Adjusting of effect, finally makes standard water discharge.
Accompanying drawing explanation
Fig. 1 is the waste water processes schematic diagram of the present invention.
Fig. 2 is the potassium permanganate composites structural representation of the present invention.
Each parts mark in accompanying drawing: 1-one-level pretreatment system, 2-two stage biological processing system, 3-sewage running piping,
4-potassium permanganate composites, 5-sterilizes canal, 6-sludge concentration tank, 7-rapid reaction zone, 8-flocculation zone, 9-settling zone, 10-water inlet pipe
Road, 11-outlet pipeline, 12-drain pipe, 71-variable ratio frequency changer flash mixer, 81-guide shell, 82-frequency conversion agitator, 83-mud
Return duct, 91-mud scraper, 92-is by supreme second probe tube in bottom, 93-excess sludge discharge pipe.
Detailed description of the invention
As depicted in figs. 1 and 2, the sewage disposal system of the efficient dephosphorization of the present invention, including one-level pretreatment system 1 and two
Level biological treatment system 2；Described its outfan of one-level pretreatment system 1 is connected with two stage biological processing system 2 input, and it is defeated
Enter to hold connection to have sewage running piping 3；Also include the advanced treating system being arranged at described its outfan of two stage biological processing system 2
System；Described advanced treatment system includes potassium permanganate composites 4 and sterilization canal 5；Described two stage biological processing system 2 and high density are sunk
The excess sludge that pond, shallow lake 4 is discharged enters sludge concentration tank 6 by excess sludge discharge pipe 93；
Described potassium permanganate composites 4 is made up of rapid reaction zone 7, flocculation zone 8 and settling zone 9；Side, described rapid reaction zone 9 sets
It is equipped with the inlet pipeline 10 being connected with two stage biological processing system 2；Side, described settling zone 9 is provided with and sterilizes what canal 5 was connected
Outlet pipeline 11；
Described rapid reaction zone 7 is provided with variable ratio frequency changer flash mixer 71, can adjust mixing speed according to the difference of inflow, just
It is sufficiently mixed with potassium permanganate composites 4 water inlet in medicament；Described flocculation zone 8 is provided with guide shell 81 and frequency conversion agitator 82, passes through
The speed controlling stirring controls flocculating effect, if rotating speed is too fast or the slowest, is all unfavorable for the formation of alumen ustum；Described guide shell 81
Lower section is provided with mud return line 83；One mud scraper 91 and Duo Gen probe tube is installed in described settling zone 9；Described sludge reflux
Pipe 83 one end is connected with flocculation zone 8, and its other end is connected to settling zone 9；Described excess sludge discharge pipe 93 one end and settling zone 9
Connecting, its other end is connected to sludge concentration tank 6, for the discharge of excess sludge.
Sewage in described sewage running piping 3 is successively through one-level pretreatment system 1, two stage biological processing system 2 and deep
Water outlet is discharged by drain pipe 12 after degree processing system.
Mud in described sludge concentration tank 6 is sent outside after processed.
Described rapid reaction zone 7 has added aluminium polychlorid；Described flocculation zone 8 has added polyacrylamide.
Five probe tubes are installed in described settling zone 9；Its interior mud mud layer height of described settling zone 9 was not higher than the end of by
The height of supreme second probe tube 92 in portion, and arrange by high bottom its distance settling zone 9 of supreme second probe tube 92 in bottom
Degree is 150cm；Too high mud layer height easily makes mud drift out inclined tube, the particularly unstable impact to base sludge of the water yield,
It is easier to make mud flow out.
The sewage water treatment method of the efficient dephosphorization of the present invention, comprises the following steps:
The first step, two stage biological processing system 2 water outlet enters the rapid reaction zone 7 of potassium permanganate composites 4 by inlet pipeline 10,
Controlling variable ratio frequency changer flash mixer 71 frequency is 45Hz, and adds aluminium polychlorid so that the phosphorus containg substances in sewage forms phosphorus
Acid aluminum, rapid reaction zone 7 is provided with flow gauge (not shown), and the amount below equation adding aluminium polychlorid calculates:
mPAC=(CTP0- CTP1) × Q0×22.2/1000；
Wherein, mPACFor aluminium polychlorid dosage, kg/d；
CTP0For water inlet total phosphorus concentration, mg/L；
CTP1For water outlet total phosphorus concentration, mg/L；
Q0For potassium permanganate composites flow of inlet water, m3/d；
22.2 represent removal 1kg phosphorus, need to add the aluminium polychlorid of 22.2kg；
Second step, enters flocculation zone 8 by the water outlet of the above-mentioned first step, and controlling frequency conversion agitator 82 frequency is 40Hz, sludge reflux
Concentration is 20 ~ 30mg/L, too low or too high sludge concentration is unfavorable to sedimentation effect, needs to increase the throwing of polyacrylamide on the contrary
Dosage, increases cost, and the amount of returned sludge and the ratio of amount of inlet water control between 2% ~ 5%, and add polyacrylamide, make
Aluminum phosphate flocculation forms alumen ustum；Aluminium polychlorid and polyacrylamide proportion control between 60 ~ 100:1, by the first step
In computing formula can obtain the dosage of aluminium polychlorid, calculate polypropylene by the ratio of polyacrylamide with aluminium polychlorid
The dosage of amide；
3rd step, enters settling zone 9 by the water outlet of above-mentioned second step, and alumen ustum forms precipitation, phosphorous alumen ustum precipitation in settling zone 9
To enter in mud, it is achieved mud-water separation, thus reduce the total phosphorus concentration in sewage；Settling zone 9 partial sludge is returned by mud
Flow tube 83 is back in the guide shell 81 of flocculation zone 8, and sludge reflux concentration is 20 ~ 30mg/L, and excess sludge enters sludge condensation
Pond 6, carries out sludge concentration and dewatering；
4th step, enters the water outlet of above-mentioned 3rd step sterilization canal 5 and carries out disinfection, and last qualified discharge, water outlet total phosphorus concentration is
0.27mg/L, concentration is relatively low, and effluent quality is preferable, can reach town sewage discharge standard.
Wherein, in described 3rd step, control settling zone 9 its interior mud mud layer height and be not higher than by bottom supreme second
The height of probe tube 92.
The sewage disposal system of the efficient dephosphorization of the present invention and processing method thereof, sewage through one-level pretreatment system, two grades
After biological treatment system processes, water outlet enters potassium permanganate composites and carries out qualified discharge after efficient dephosphorization, then the sterilization of sterilized canal；
Two stage biological processing system is discharged into sludge concentration tank with the excess sludge of potassium permanganate composites, mud concentrated dehydration Hou Song city
Government specifies position to process；
Sewage water outlet total phosphorus concentration after one-level pretreatment system, the process of two stage biological processing system is 0.8 ~ 1.0mg/L, this
Bright interpolation potassium permanganate composites processing system after two stage biological processes, it is achieved efficient dephosphorization effect, processes water outlet total phosphorus concentration
For 0.27mg/L, total tp removal rate reaches 66% ~ 73%；Wherein total phosphorus concentration of emission meets " urban wastewater treatment firm pollutant row
Put standard " (GB18918) one-level A standard, i.e. total phosphorus concentration≤0.5mg/L.
The sewage water treatment method of efficient dephosphorization of the present invention processes water outlet total phosphorus value and sewage according to two stage biological processing system
Process the discharge standard value of total phosphorus, calculate the amount needing dephosphorization；By the practical operation repeatedly of this technology, remove 1kg
Phosphorus, needs to add aluminium polychlorid (the wherein Al of 22.2kg2O3Effective content 30%), aluminium polychlorid (being called for short PAC) is with poly-third
Acrylamide (being called for short PAM) adds ratio to be needed to control at 60 ~ 100:1, and this ratio can make flocculating effect optimal, the technology of the present invention
Having and reduce the blindness adding medicament, pharmaceutical quantities adds minimum, the advantage that cost is minimum.
The sewage disposal system of the efficient dephosphorization of the present invention and processing method thereof, in potassium permanganate composites rapid reaction zone
Add PAC so that PAC quickly mixes with water inlet, and enter flocculation instead after the phosphorus generation chemical reaction generation aluminum phosphate in water
Answer district；In flocculation reaction district, add flocculant PAM, bottom settling zone, reflux a certain amount of mud to flocculation reaction simultaneously
District, is sufficiently stirred in flocculation reaction district, enters settling zone, carry out mud-water separation after forming big alumen ustum, processes water outlet row
To canal of sterilizing；Containing substantial amounts of aluminum phosphate in precipitating sludge, except in sub-fraction sludge reflux to flocculation reaction district guide shell,
Major part is discharged into sludge concentration tank by residual sludge pump, and this partial sludge, with coagulant, gives off with biological reaction pool
The excess sludge come mixes, and beneficially biological sludge is preferably dehydrated, and also reduces flocculation medicine in dehydration simultaneously
The dosage of agent, thus reduce cost of sewage disposal further.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.
Claims (7)
1. a sewage disposal system for efficient dephosphorization, including one-level pretreatment system and two stage biological processing system；Described one
Level its outfan of pretreatment system is connected with two stage biological processing system input, and its input connects sewage running piping；
It is characterized in that: also include being arranged at the advanced treatment system of described two stage biological its outfan of processing system；Described depth
Reason system includes potassium permanganate composites and sterilization canal；The residue that described two stage biological processing system and potassium permanganate composites are discharged is dirty
Mud enters sludge concentration tank by excess sludge discharge bank of tubes；
Described potassium permanganate composites is made up of rapid reaction zone, flocculation zone and settling zone；Side, described rapid reaction zone is provided with
The inlet pipeline being connected with two stage biological processing system；Side, described settling zone is provided with the outlet pipeline being connected with canal of sterilizing；
Described rapid reaction zone is provided with variable ratio frequency changer flash mixer；Described flocculation zone is provided with guide shell and frequency conversion agitator；Described
Mud return line it is provided with below guide shell；One mud scraper and Duo Gen probe tube are installed in described settling zone；Described mud returns
Flow tube one end is connected with flocculation zone, and its other end is connected to settling zone；Described excess sludge discharge pipe one end is connected with settling zone,
Its other end is connected to sludge concentration tank.
The sewage disposal system of efficient dephosphorization the most according to claim 1, it is characterised in that: in described sewage running piping
Sewage given off by drain pipe after one-level pretreatment system, two stage biological processing system and advanced treatment system successively
Water.
The sewage disposal system of efficient dephosphorization the most according to claim 1, it is characterised in that: in described sludge concentration tank
Mud is sent outside after processed.
The sewage disposal system of efficient dephosphorization the most according to claim 1, it is characterised in that: described rapid reaction zone is thrown
Added with aluminium polychlorid；Described flocculation zone has added polyacrylamide.
The sewage disposal system of efficient dephosphorization the most according to claim 1, it is characterised in that: it is provided with in described settling zone
Five probe tubes；Its interior mud mud layer height of described settling zone is not higher than by the height of supreme second probe tube in bottom, and
Arranging by its distance settling zone bottom level of supreme second probe tube in bottom is 150cm.
6. the sewage water treatment method of an efficient dephosphorization, it is characterised in that comprise the following steps:
The first step, two stage biological processing system water outlet enters the rapid reaction zone of potassium permanganate composites by inlet pipeline, controls
Variable ratio frequency changer flash mixer frequency is 45Hz, and adds aluminium polychlorid so that the phosphorus containg substances in sewage forms aluminum phosphate, soon
Speed reaction zone is provided with flow gauge, and the amount below equation adding aluminium polychlorid calculates:
mPAC=(CTP0- CTP1) × Q0×22.2/1000；
Wherein, mPACFor aluminium polychlorid dosage, kg/d；
CTP0For water inlet total phosphorus concentration, mg/L；
CTP1For water outlet total phosphorus concentration, mg/L；
Q0For potassium permanganate composites flow of inlet water, m3/d；
22.2 represent removal 1kg phosphorus, need to add the aluminium polychlorid of 22.2kg；
Second step, enters flocculation zone by the water outlet of the above-mentioned first step, and controlling frequency conversion agitator frequency is 40Hz, sludge reflux concentration
Being 20 ~ 30mg/L, the amount of returned sludge and the ratio of amount of inlet water control between 2% ~ 5%, and add polyacrylamide, make phosphorus
Acid aluminum flocculation forms alumen ustum；Aluminium polychlorid and polyacrylamide proportion control between 60 ~ 100:1, by the first step
Computing formula can obtain the dosage of aluminium polychlorid, calculate polyacrylamide by the ratio of polyacrylamide with aluminium polychlorid
The dosage of amine；
3rd step, enters settling zone by the water outlet of above-mentioned second step, and alumen ustum forms precipitation in settling zone, and phosphorous alumen ustum precipitation will
Enter in mud, it is achieved mud-water separation, thus reduce the total phosphorus concentration in sewage；Settling zone partial sludge passes through mud return line
Being back in flocculation zone guide shell, sludge reflux concentration is 20 ~ 30mg/L, and excess sludge enters sludge concentration tank, carries out mud
Thickening；
4th step, enters the water outlet of above-mentioned 3rd step sterilization canal and carries out disinfection, and last qualified discharge, water outlet total phosphorus concentration is
0.27mg/L。
The sewage water treatment method of efficient dephosphorization the most according to claim 6, it is characterised in that: in described 3rd step, control
Its interior mud mud layer height of settling zone is not higher than by the height of supreme second probe tube in bottom.
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| CN106630291A (en) * | 2017-01-04 | 2017-05-10 | 四川沃兹凯兰科技有限公司 | Phosphorous removing device and phosphorous removing method for treating phosphorous-containing standard-exceeding sewage by utilizing phosphorous removing device |
| CN108751374A (en) * | 2018-08-06 | 2018-11-06 | 云南科力新材料股份有限公司 | A kind of high-effective gas Heisui River precipitation separation device |
| CN109019793A (en) * | 2018-07-26 | 2018-12-18 | 中国市政工程中南设计研究总院有限公司 | A kind of advanced treatment of wastewater adds chamotte mould high efficiency clarification tank |
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| CN111170590A (en) * | 2020-03-03 | 2020-05-19 | 安徽绿衡环保科技有限公司 | Ultra-high-filtration-speed IV-class upgrading modified nitrogen and phosphorus removal device and treatment process thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630291A (en) * | 2017-01-04 | 2017-05-10 | 四川沃兹凯兰科技有限公司 | Phosphorous removing device and phosphorous removing method for treating phosphorous-containing standard-exceeding sewage by utilizing phosphorous removing device |
| CN109761389A (en) * | 2017-11-10 | 2019-05-17 | 同方环境股份有限公司 | A kind of complexes of municipal wastewater advanced treating |
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| CN108751374A (en) * | 2018-08-06 | 2018-11-06 | 云南科力新材料股份有限公司 | A kind of high-effective gas Heisui River precipitation separation device |
| CN110040871A (en) * | 2019-04-08 | 2019-07-23 | 浙江卓锦环保科技股份有限公司 | Purifying method and equipment are removed in a kind of river water dephosphorization |
| CN111170590A (en) * | 2020-03-03 | 2020-05-19 | 安徽绿衡环保科技有限公司 | Ultra-high-filtration-speed IV-class upgrading modified nitrogen and phosphorus removal device and treatment process thereof |
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