CN208869379U - A kind of stainless steel acid cleaning waste water denitrogenation processing system - Google Patents
A kind of stainless steel acid cleaning waste water denitrogenation processing system Download PDFInfo
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- CN208869379U CN208869379U CN201821433221.8U CN201821433221U CN208869379U CN 208869379 U CN208869379 U CN 208869379U CN 201821433221 U CN201821433221 U CN 201821433221U CN 208869379 U CN208869379 U CN 208869379U
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Abstract
The utility model discloses a kind of stainless steel acid cleaning waste water denitrogenation processing systems comprising pond is discharged in reuse pool, two ponds SBR；Pickling waste waters total nitrogen content after heavy-metal ion removal is high, oxygenation capacity is adjusted using the aerator for stirring water body being arranged in the pond SBR including a large amount of nitrate nitrogens and a small amount of ammoniacal nitrogen, denitrification and nitrifying process in the pond SBR are controlled, achievees the purpose that stainless steel acid cleaning waste water denitrogenation.The utility model does not use mechanical stirring equipment, simplifies the structure and system operational management in the pond SBR, reduces the maintenance management work of electromechanical equipment in pond.
Description
Technical field
The utility model belongs to water-treatment technology field, in particular to a kind of stainless steel acid cleaning waste water denitrogenation processing system and
Method.
Background technique
Stainless steel acid cleaning waste water often uses a large amount of sulfuric acid, nitric acid and hydrofluoric acid, in patent CN due to the needs of technique
A kind of stainless steel acid cleaning waste water/effluent resource processing system is disclosed in 205635149U, it is heavy in waste water by pre-processing
Metal ion is deposited removal, and water outlet enters reuse pool.Reuse pool water outlet a part directly retrogradation producing line, another part is useless
Water direct emission after processing.Nitrate anion in waste water mainly exists in the form of calcium nitrate.For the requirement for meeting discharge standard,
It needs to carry out biological denitrificaion processing to efflux wastewater.
Conventional SBR pond domestic demand designs mechanical stirring equipment and aerator (ejector or micro-hole aerator) simultaneously, is used to
Meet the environmental requirement of Microbial denitrogenation different phase.Therefore, it though traditional SBR system can flexibly control technological parameter, also deposits
It is more complex in operational management, the disadvantages of electromechanical equipment easily breaks down, and aeration tube need to safeguard replacement.
Utility model content
The utility model provides a kind of stainless steel acid cleaning waste water denitrogenation processing system, using having the function of nitrification-denitrification
Multiple SBR techniques carry out denitrogenation processing, collect water inlet, denitrification denitrogenation reaction, nitration reaction, precipitating, draining/spoil disposal function in
One completes stirring and aeration by aerator, and structure is simple, easy to maintain.
The utility model provides a kind of stainless steel acid cleaning waste water denitrifying method, using having the function of nitrification-denitrification
Multiple SBR techniques carry out denitrogenation processing, collect water inlet, denitrification denitrogenation reaction, nitration reaction, precipitating, draining/spoil disposal function in
One completes stirring and aeration by aerator, and structure is simple, easy to maintain.
The technical solution of the utility model is as follows:
A kind of stainless steel acid cleaning waste water denitrogenation processing system, including sequentially connected reuse pool, two ponds SBR, discharge
Pond, two ponds SBR are respectively the pond level-one SBR, the pond second level SBR, and the pond the level-one SBR is adjacent with the reuse pool,
The pond the second level SBR is adjacent with the discharge pond, several aerators, the aerator installation are provided in the pond SBR
In the SBR bottom of pond portion, the aerator is connect with an admission line, and the admission line top is installed on the pond SBR
Chi Ding；
Nitrogenous stainless steel acid cleaning waste water is entered into the pond SBR via the reuse pool, by controlling the pond SBR
The aerator air inflow and aeration time and carry out the switching of anoxic, aerobic reaction process, control in the pond SBR and carry out
Denitrification and nitrifying process, so that stainless steel acid cleaning waste water denitrogenation.
Preferably, respectively there are two ponds A, B, the reuse pool, level-one SBR pond A in the pond the level-one SBR, the pond second level SBR
Pond, second level SBR ChiAChi, discharge pond are in turn connected to form A processing line, the reuse pool, level-one SBR ChiBChi, second level SBR
ChiBChi, discharge pond are in turn connected to form B processing line, and two processing lines of A, B are parallel.
Preferably, the aerator is rotary-cut mixed flow aerator.
Preferably, the pond the level-one SBR, the pond second level SBR are connect with a chemicals dosing plant respectively, by chemicals dosing plant, to institute
State the pond level-one SBR, dosing in the pond second level SBR.
Preferably, the excess sludge that the pond the level-one SBR, the pond second level SBR, discharge pond generate is after being dehydrated, upper layer filter
Liquid is back to the pond the level-one SBR, and lower layer's sludge is discharged through a spoil disposal pipeline.
The utility model also provide it is a kind of utilize above-mentioned stainless steel acid cleaning waste water denitrogenation processing system carry out acid-washing stainless steel
The method of denitrogenation of waste water, comprising the following steps:
S1 the denitrification stage) is carried out in the pond level-one SBR: waste water to be processed being passed through the pond level-one SBR, adjusts the pond level-one SBR
Interior aerator air inflow simultaneously carries out intermittent aeration stirring, so that level-one SBR pond dissolved oxygen amount is in 0.5mg/L hereinafter, in pond
Acetic acid is added as carbon source；Denitrifying bacterium utilizes organic matter carbon source, converts nitrogen for water inlet nitrate nitrogen, realizes preliminary denitrogenation；
S2 the nitrification stage) is carried out in the pond level-one SBR: increasing oxygen supply by adjusting the aerator, dissolved oxygen amount increases to 2mg/L
More than, the ammoniacal nitrogen in water inlet is converted into nitrate nitrogen；
S3 the denitrification stage) is carried out in the pond second level SBR: the water in the pond level-one SBR is passed through the pond second level SBR；Adjust second level
Aerator air inflow in the pond SBR simultaneously carries out intermittent aeration stirring so that second level SBR pond dissolved oxygen amount in 0.5mg/L hereinafter,
Acetic acid is added in pond as carbon source；Denitrifying bacterium utilizes organic matter carbon source, further converts nitrogen for nitrate nitrogen in water, realizes
Advanced nitrogen；
S4 the nitrification stage) is carried out in the pond second level SBR: increasing oxygen supply by adjusting the aerator, dissolved oxygen amount increases to 2mg/L
More than, remaining acetic acid is removed in aeration process in water, and water outlet COD is also minimized, by the pond second level SBR of nitrogen content qualification
It is drained, is discharged into discharge pond.
Preferably, when respectively there are two ponds A, B in the pond the level-one SBR, the pond second level SBR, comprising the following steps:
Waste water is handled using A line:
T1 the denitrification stage) is carried out in level-one SBR ChiAChi: waste water to be processed being passed through and SBR ChiAChi, level-one is adjusted
Aerator air inflow in the pond A of the pond SBR simultaneously carries out intermittent aeration stirring, so that the pond the level-one SBR pond A dissolved oxygen amount is in 0.5mg/L
Hereinafter, adding acetic acid in pond as carbon source；Denitrifying bacterium utilizes organic matter carbon source, converts nitrogen for water inlet nitrate nitrogen, real
Now preliminary denitrogenation；
T2 the nitrification stage) is carried out in level-one SBR ChiAChi: increasing oxygen supply by adjusting the aerator, dissolved oxygen amount increases to
2mg/L or more, the ammoniacal nitrogen in water inlet are converted into nitrate nitrogen；
T3 the denitrification stage) is carried out in second level SBR ChiAChi: waste water to be processed being passed through second level SBR ChiAChi, adjusts second level
Aerator air inflow in the pond A of the pond SBR simultaneously carries out intermittent aeration stirring, so that the pond the second level SBR pond A dissolved oxygen amount is in 0.5mg/L
Hereinafter, adding acetic acid in pond as carbon source, the amount that acetic acid is added and time are according to total nitrogen Level tune of intaking in pond；Denitrification
Bacterium utilizes organic matter carbon source, converts nitrogen for water inlet nitrate nitrogen, further removes the nitrate nitrogen in waste water；
T4 the nitrification stage) is carried out in second level SBR ChiAChi: increasing oxygen supply by adjusting the aerator, dissolved oxygen amount increases to
2mg/L or more, remaining acetic acid is removed in aeration process in water, and water outlet COD is also minimized, by the second level of nitrogen content qualification
The pond SBR is drained, and discharge pond is discharged into；
Waste water is handled using B line:
T11 the denitrification stage) is carried out in level-one SBR ChiBChi: waste water to be processed being passed through and SBR ChiBChi, adjusts one
Grade the pond the SBR pond B in aerator air inflow and carry out intermittent aeration stirring so that the pond the level-one SBR pond B dissolved oxygen amount is in 0.5mg/
L in pond hereinafter, add acetic acid as carbon source；Denitrifying bacterium utilizes organic matter carbon source, converts nitrogen for water inlet nitrate nitrogen, real
Now preliminary denitrogenation；
T21 the nitrification stage) is carried out in level-one SBR ChiBChi: increasing oxygen supply by adjusting the aerator, dissolved oxygen amount increases to
2mg/L or more, the ammoniacal nitrogen in water inlet are converted into nitrate nitrogen；
T31 the denitrification stage) is carried out in second level SBR ChiBChi: waste water to be processed being passed through second level SBR ChiBChi, adjusts two
Grade the pond the SBR pond B in aerator air inflow and carry out intermittent aeration stirring so that the pond the second level SBR pond B dissolved oxygen amount is in 0.5mg/
L in pond hereinafter, add acetic acid as carbon source, the amount that acetic acid is added and time are according to total nitrogen Level tune of intaking in pond；Anti- nitre
Change bacterium and utilize organic matter carbon source, converts nitrogen for water inlet nitrate nitrogen, further remove the nitrate nitrogen in waste water；
T41 the nitrification stage) is carried out in second level SBR ChiBChi: increasing oxygen supply by adjusting the aerator, dissolved oxygen amount increases to
2mg/L or more, remaining acetic acid is removed in aeration process in water, and water outlet COD is also minimized, by the second level of nitrogen content qualification
The pond SBR is drained, and discharge pond is discharged into；
The A line processing waste water and B line processing waste water are parallel processing or staggeredly carry out.A line and B line are simultaneously herein
The two lines of column: when parallel processing refers to starting A line processing, while the processing of B line is opened, certainly, A, B line parallel processing herein is simultaneously
It is not strict with the processing of A, B line locking, for example when A line is handled to T1-T4 either step, starts B line；It staggeredly carries out referring to A line
When processing, B line stops, and after A line has been handled, stops A line and starts B line.
Preferably, the pond the level-one SBR, the aerator in the pond the second level SBR are rotary-cut mixed flow aerator, pass through control
The rotary-cut mixed flow aerator air inflow and aeration time meet the stirring of denitrification stage and need or nitrify the oxygenic aeration in stage
Needs.
Preferably, the excess sludge that the pond the level-one SBR, the pond second level SBR, discharge pond generate is after being dehydrated, upper layer filter
Liquid is back to the pond the level-one SBR, and lower layer's sludge is discharged through a spoil disposal pipeline.
Compared with prior art, the beneficial effects of the utility model are as follows:
The utility model is (sequencing batch activated using the multistage SBR technique with nitrification-denitrification function that can flexibly control
Sludge) it is handled, it copes with water water and total nitrogen concentration changes actual conditions greatly；The utility model proposes using multistage
SBR technique carries out biological denitrificaion processing, and the stirring of reactor and aeration are completed by a kind of rotary-cut mixed flow aerator, it has stirring
Ability is strong, oxygen-transfer efficiency is high, elevated online installation, long service life, it is non-maintaining the features such as, in this way, not only energy conservation again can be simple
Change system operational management, while also eliminating the maintenance management work of electromechanical equipment；
Rotary-cut mixed flow aerator has efficient oxygenation capacity, and using elevated mounting means, being particularly suitable for can not be clear
The transformation project that pond stops production；Other than the function being efficiently oxygenated, also has the function of strong stirring, the gas-liquid that when aeration is formed is rapid
Water body can be sufficiently stirred in stream, prevent sludge from accumulating in reactor bottom.It is particularly suitable for needing again after reactor a cycle
The case where secondary starting, SBR pool bottom sludge concentration is high at this time, and conventional microporous aeration mode can not stir sludge blanket, Zhi Nengyi at all
By mechanical stirring equipment, and rotary-cut mixed flow aerator can stir sludge blanket easily.In the denitrification stage, dissolved oxygen amount needs to protect in pond
It holds in 0.5mg/L hereinafter, at this point, only realization stirring need to can be facilitated to make by adjusting aerator air inflow, intermittently starting aeration
With, while it being able to maintain the low dissolved oxygen state in the pond SBR again, it is ensured that denitrification effect.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
Fig. 1 is the stainless steel acid cleaning waste water denitrogenation processing flow chart of the utility model embodiment 1；
Fig. 2 is the stainless steel acid cleaning waste water denitrification treatment process figure of the utility model embodiment 1.
Marked in the figure: 1- reuse pool, the pond 2- level-one SBR, the pond 3- second level SBR, 4- discharge pond, 5- aerator, 6- into
Feed channel.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.It should be understood that these embodiments are merely to illustrate
The utility model, rather than limit the protection scope of the utility model.Those skilled in the art are according to this in practical applications
The modifications and adaptations that utility model is made, still fall within the protection scope of the utility model.
In order to better illustrate the utility model, the utility model is described in detail below with attached drawing.
Embodiment 1
Stainless steel acid cleaning waste water water and total nitrogen concentration variation greatly, and in addition to contain a large amount of nitrate nitrogens other than, there is also because
The ammoniacal nitrogen formed after Treated sewage reusing by catalysis.The stainless steel acid cleaning waste water of certain enterprises of producing stainless steel discharge is through in second level and heavy
Behind shallow lake, 80% water reuse, 20% water enters subsequent stainless steel acid cleaning waste water denitrogenation processing system, referring to Fig. 1-2, this system
(it is divided into two lattice: A, B including sequentially connected reuse pool 1, the pond level-one SBR 2 (being divided into two lattice: the pond B A), the pond second level SBR 3
Pond), discharge pond 4, be provided with several aerators 5 in the pond SBR, the aerator is mounted on SBR bottom of pond portion, the exposure
Gas device is connect with an admission line 6, and the admission line 6 is installed on the Chi Ding in the pond SBR；Second level sbr reactor pond carries out at denitrogenation
It manages and discharges, system operational parameters are as follows: flow of inlet water 1200m3/ d, water inlet nitrate nitrogen are 1000mg/L.Sbr reactor pond is every
8 hours circulation primaries, the water inlet nitrate nitrogen load of the pond level-one SBR (pond A, B) 2 is 400kg/d, Denitrification rate 90%；Second level SBR
The water inlet nitrate nitrogen load of pond (pond A, B) 3 is 40kg/d, Denitrification rate 99%；Second is added into the pond SBR by chemicals dosing plant
Acid, acetic acid dosage are 5.5t/d.Daily biochemical sludge sludge volume is 0.6t.
Stainless steel acid cleaning waste water denitrogenation processing operational process is as follows:
System runs 0-1h: the elevator pump of the starting pond level-one SBR (pond A), waste water lifting to the pond level-one SBR (pond A).0.5-
5h: starting air blower opens the pond level-one SBR (pond A) intake valve, and aerator intermittence is oxygenated and stirs water body, dissolved oxygen amount in pond
In 0.5mg/L hereinafter, opening acetic acid dosing pump simultaneously, administration timing of drug can be adjusted according to total nitrogen level of intaking in pond for control.
This is the denitrification stage, and denitrifying bacterium is converted into nitrogen, the pond level-one SBR (pond A) using additional acetic acid as carbon source, by nitrate nitrogen
Preliminary denitrogenation is carried out, Denitrification rate is 90% or so.5-6h: increasing the pond level-one SBR (pond A) oxygenation capacity, dissolved oxygen amount control in pond
In 2mg/L or more.Nitration reaction is carried out in aeration process pond, intake containing a small amount of ammonia nitrogen be oxidized to nitrate nitrogen.6-7h: one
The grade pond SBR (pond A) stops oxygenic aeration, staticly settles 1h.7-8h: the starting pond level-one SBR (pond A) water decanter is drained.
7.3-8.3h: the elevator pump of the starting pond second level SBR (pond A), waste water lifting to the pond second level SBR (pond A).8-13h: second level is opened
The intake valve in the pond SBR (pond A), aerator intermittence are oxygenated and stir water body, and dissolved oxygen amount control is in 0.5mg/L hereinafter, same in pond
Shi Kaiqi acetic acid dosing pump, administration timing of drug are adjusted according to total nitrogen level of intaking.This denitrification stage further goes in water removal
Nitrate nitrogen, carry out advanced nitrogen, the pond second level SBR (pond A) Denitrification rate be 99% or so.13-14h: second level SBR pond (A is increased
Pond) oxygenation capacity, dissolved oxygen amount control is in 2mg/L or more in pond.Remaining acetic acid is removed in aeration process in water, reduces water outlet
COD.The pond (pond A) 14-15h: second level SBR stops oxygenic aeration, staticly settles 1h.15-16h: the starting pond second level SBR (pond A) is strained
Hydrophone is drained, and bio-chemical effluent enters discharge pond.It discharges pond and is discharged direct emission, the pond level-one SBR (pond A), second level SBR
The sludge that generates is mainly calcium carbonate and biochemical sludge in pond (pond A) and discharge pond, can further progress sludge dewatering treatment,
Dewatered filtrate is back to the pond level-one SBR (pond A).4-5h: the elevator pump of the starting pond level-one SBR (pond B), waste water lifting to one
The grade pond SBR (pond B).4.5-9h: starting air blower opens the pond level-one SBR (pond B) intake valve, and aerator intermittence is oxygenated and stirs
Water body is mixed, dissolved oxygen amount control in 0.5mg/L hereinafter, open acetic acid dosing pump simultaneously in pond, and administration timing of drug is according to water inlet total nitrogen water
It is flat to be adjusted.This is the denitrification stage, and denitrifying bacterium is converted into nitrogen using additional acetic acid as carbon source, by nitrate nitrogen, one
The grade pond SBR (pond B) carries out preliminary denitrogenation, and Denitrification rate is 90% or so.9-10h: the pond level-one SBR (pond B) oxygenation capacity, pond are increased
Middle dissolved oxygen amount control is in 2mg/L or more.Nitration reaction is carried out in aeration process pond, intake containing a small amount of ammonia nitrogen be oxidized to nitre
State nitrogen.The pond (pond B) 10-11h: level-one SBR stops oxygenic aeration, staticly settles 1h.11-12h: the starting pond level-one SBR (pond B) is strained
Hydrophone is drained.11.3-12.3h: the elevator pump of the starting pond second level SBR (pond B), waste water lifting to the pond second level SBR (pond B).
12-17h: opening the intake valve in the pond second level SBR (pond B), and aerator intermittence is oxygenated and stirs water body, and dissolved oxygen amount control exists in pond
Hereinafter, opening acetic acid dosing pump simultaneously, administration timing of drug is adjusted 0.5mg/L according to total nitrogen level of intaking.This denitrification stage
The nitrate nitrogen in water removal is further removed, advanced nitrogen is carried out, the pond second level SBR (pond B) Denitrification rate is 99% or so.17-18h:
The oxygenation capacity in the pond second level SBR (pond B) is increased, dissolved oxygen amount control is in 2mg/L or more in pond.Remaining acetic acid is in aeration process in water
It is removed, reduces water outlet COD.The pond (pond B) 18-19h: second level SBR stops oxygenic aeration, staticly settles 1h.19-20h: starting two
Grade SBR pond (pond B) water decanter is drained, and bio-chemical effluent enters discharge pond.It discharges pond and is discharged direct emission, level-one SBR
The sludge that generates is mainly calcium carbonate and biochemical sludge in pond (pond B), the pond second level SBR (pond B) and discharge pond, can further into
Row sludge dewatering treatment, dewatered filtrate are back to the pond level-one SBR (pond B).
The above are the complete cycle period of A, B two lines, circulation primary for every eight hours when normal operation.If taking turns to B line to open
It is dynamic, and reuse pool liquid level is in middle low water level at this time, then B line does not start, the preferential starting B line of starting next time.If single line one
The pond grade SBR intake pump dwell time is more than 9 hours, then starts the intermittent aerating function in the pond this single line level-one SBR, until next time
SBR water inlet pump startup, reenters program circuit.If the pond single line second level SBR intake pump dwell time is more than 9 hours, start
The intermittent aerating function in the pond this single line second level SBR reenters program circuit until the pond next second level SBR water inlet pump startup.If
The pond single line level-one SBR intake pump dwell time is more than 12 hours, then runs within every 4 hours the oxygenic aeration 1 in the pond this single line level-one SBR
Hour, until next SBR water inlet pump startup, reenter program circuit.If the pond single line second level SBR intake pump dwell time is more than
12 hours, then oxygenic aeration 1 hour of the pond this single line second level SBR is run within every 4 hours, intake pump opens until the pond next second level SBR
It is dynamic, reenter program circuit.
The pond SBR is not provided with mechanical stirring equipment in the present embodiment, the turbulences water generated by rotary cutting aerator aeration
Body flexibly switches aerobic, hypoxia response process by control 5 air inflow of aerator and aeration time.According to ammoniacal nitrogen and nitre state
The concentration of nitrogen adjusts aeration quantity and aeration time, if water inlet ammoniacal nitrogen is very low, total nitrogen is essentially nitrate nitrogen at this time, then whole only to need
Carrying out intermittent aerating can be realized denitrification denitrogenation, if water inlet ammoniacal nitrogen is high, needs to extend aeration time and increases aeration quantity,
Guarantee sufficient nitrifying process, in this way, simplifying system operational management, saves operating cost.
The utility model design has the two-stage SBR process processing of nitrification-denitrification function in stainless steel acid cleaning waste water, real
Existing waste water total nitrogen qualified discharge.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. a kind of stainless steel acid cleaning waste water denitrogenation processing system, which is characterized in that including sequentially connected reuse pool, two
The pond SBR, discharge pond, two ponds SBR are respectively the pond level-one SBR, the pond second level SBR, the pond the level-one SBR and the reuse
Pond is adjacent, and the pond the second level SBR is adjacent with the discharge pond, several aerators, the exposure are provided in the pond SBR
Gas device is mounted on the SBR bottom of pond portion, and the aerator is connect with an admission line, and the admission line top is installed on described
The Chi Ding in the pond SBR；
Nitrogenous stainless steel acid cleaning waste water is entered into the pond SBR via the reuse pool, by the institute for controlling the pond SBR
It states aerator air inflow and aeration time and carries out the switching of anoxic, aerobic reaction process, control and carry out anti-nitre in the pond SBR
Change and nitrifying process, so that stainless steel acid cleaning waste water denitrogenation.
2. stainless steel acid cleaning waste water denitrogenation processing system according to claim 1, which is characterized in that the pond the level-one SBR,
Respectively there are two ponds A, B in the pond second level SBR, and the reuse pool, level-one SBR ChiAChi, second level SBR ChiAChi, discharge pond are successively
Connection forms A processing line, and the reuse pool, level-one SBR ChiBChi, second level SBR ChiBChi, discharge pond are in turn connected to form B
Line is handled, two processing lines of A, B are parallel.
3. stainless steel acid cleaning waste water denitrogenation processing system according to claim 1, which is characterized in that the aerator is rotation
Cut mixed flow aerator.
4. stainless steel acid cleaning waste water denitrogenation processing system according to claim 1, which is characterized in that the pond the level-one SBR,
The pond second level SBR is connect with a chemicals dosing plant respectively, by chemicals dosing plant, dosing in the pond Xiang Suoshu level-one SBR, the pond second level SBR.
5. stainless steel acid cleaning waste water denitrogenation processing system according to claim 1, which is characterized in that the pond the level-one SBR,
For the excess sludge that the pond second level SBR, discharge pond generate after being dehydrated, upper layer filtrate is back to the pond the level-one SBR, lower layer's sludge
It is discharged through a spoil disposal pipeline.
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Cited By (1)
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|---|---|---|---|---|
| CN110422927A (en) * | 2019-08-09 | 2019-11-08 | 浙江聚源环保科技有限公司 | Simultaneous oxygen biomembrane hydrolysis reaction bath and waste water treatment system and stain disease processing method |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422927A (en) * | 2019-08-09 | 2019-11-08 | 浙江聚源环保科技有限公司 | Simultaneous oxygen biomembrane hydrolysis reaction bath and waste water treatment system and stain disease processing method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |