CN108409058A - Land-saving charcoal ultrafiltration membrane combines water treatment facilities and technique - Google Patents
Land-saving charcoal ultrafiltration membrane combines water treatment facilities and technique Download PDFInfo
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- CN108409058A CN108409058A CN201810411682.3A CN201810411682A CN108409058A CN 108409058 A CN108409058 A CN 108409058A CN 201810411682 A CN201810411682 A CN 201810411682A CN 108409058 A CN108409058 A CN 108409058A
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- ultrafiltration membrane
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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
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to water-treatment technology field more particularly to land-saving charcoal ultrafiltration membrane combination water treatment facilities and techniques.A kind of land-saving charcoal ultrafiltration membrane combination water treatment facilities, including coagulative precipitation tank, biological activated carbon backflow pool, oxidation pond, incubator and ultrafiltration membrane pool；Raw water pipeline is connected on front side of coagulative precipitation tank, coagulative precipitation tank includes the folded plate flocculator and inclined-tube sedimentation tank kept apart by isolating device.A kind of land-saving charcoal ultrafiltration membrane combination water treatment technology is also disclosed, is included the following steps：(1) aluminum sulfate coagulation, precipitation are added into raw water；(2) biodegradable and absorption, reflux separation are carried out to the water outlet of step (1)；(3) ultrafiltration membrane physics screening is carried out to the water outlet of step (2).The land-saving charcoal ultrafiltration membrane combination water treatment facilities and technique of the present invention can make full use of the useful space of rectangular sedimentation tank in practical applications, so that effluent quality is promoted while saving sand filter.
Description
Technical field
The invention belongs to water-treatment technology field more particularly to land-saving charcoal ultrafiltration membrane combination water treatment facilities and works
Skill.
Background technology
Urban water supply is the lifeline engineering that country pays much attention to.Water supply security is related to the health and economy of huge numbers of families
The sustainable development of society, is related to social progress and stabilization, and it is social lasting hair to carry out urban water supply safety safeguard work
The basis of exhibition, harmonious running.
The one line urban population in China is intensive, and economically developed, land resource is in short supply, while most of water factories of China also face
The problem of technique upgrading soil deficiency.Therefore, exploitation the efficient water-purifying process of land-saving with solve so that the whole nation supply water altogether
With the problem faced, there is important practical significance.Current water factory's water treatment technology includes conventional treatment, ozone bioactivity
Charcoal advanced treating, film process etc., since water quality carries mark and problems concerning land resources, the project of upgrading and rebuilding of conventional treatment water factory was once
It gets into a difficult position.This technology of short route ultrafiltration membrane process can make full use of the useful space of plant area's sedimentation basin and can save sand filtration
The land used in pond increasingly highlights its advantages for development.But by domestic water factory for many years practice have shown that since ultrafiltration membrane is low pressure
Film, relatively poor to organic matter removal effect and the technique bottleneck place.
Invention content
In view of the foregoing defects the prior art has, the present invention proposes a kind of new land-saving reflux ultrafiltration apparatus and work
Skill.The land-saving charcoal ultrafiltration membrane combination water treatment facilities and technique of the present invention can make full use of water factory existing in practical applications
The useful space of some rectangular sedimentation tanks, enables effluent quality to be promoted while saving sand filter.
The present invention is realized using technical solution below：
A kind of land-saving charcoal ultrafiltration membrane combines water treatment facilities, including coagulative precipitation tank, biological activated carbon backflow pool,
Oxidation pond, incubator and ultrafiltration membrane pool；
Raw water pipeline is connected on front side of coagulative precipitation tank, raw water pipeline is connected with water sprayer, and the connection of adding of agent bucket adds
Teat pipette, the vacuum that water sprayer is formed enter raw water pipeline convenient for medicament, mixer are additionally provided on raw water pipeline, mixer is for leading to
It crosses hydraulic action to mix the raw water after dosing, coagulative precipitation tank includes the folded plate flocculation kept apart by isolating device
Pond and inclined-tube sedimentation tank；
Ultrafiltration membrane pool includes one or more distributor box and is arranged membrane cisterna in each distributor box both sides, each film
Pond is all connected with water producing tank and chemical cleaning case.
A kind of land-saving charcoal ultrafiltration membrane combination water treatment technology, includes the following steps：
(1) aluminum sulfate coagulation, precipitation are added into raw water；
(2) biodegradable and absorption, reflux separation are carried out to the water outlet of step (1)；
(3) ultrafiltration membrane physics screening is carried out to the water outlet of step (2).
Preferably, step (2) the specific steps are：
The water outlet of step (1) is mixed in a certain ratio after aeration is cultivated into oxidation with reflux bion Powdered Activated Carbon
Pond, then water outlet enter biological activated carbon backflow pool.
Preferably, step (3) the specific steps are：
The water outlet of step (2) enters ultrafiltration membrane pool after separation of solid and liquid through distributor box, the physics sieving actoion through ultrafiltration membrane
Further remove pollutant.
Preferably, raw water water is 4m3/ h, operation water are 4.5m3The dosage of/h, aluminum sulfate are 20mg/L, coagulation
Sedimentation basin hydraulic detention time is 70 minutes, and the sludge concentration control in biological activated carbon backflow pool is in 2%-4%, containing a large amount of
BAC returned sludges are added in proportion to precipitation and are discharged, dosage 5-10mg/L.
Preferably, ultrafiltration membrane operating parameter：Backwash cycle 60min is discharged 30s before backwash, 60s is aerated before backwash, exposes
Throughput 6m3/ h, backwash time 90s, backwash flow 2m3/ h, time of repose 30s, pumpway is primary every every 4 backwashes draining, row
Water time 60s, design flux 30L/m2.h, maintainability cleaning frequency 15d, sodium hypochlorite clean concentration 200mg/L.
The beneficial effects of the invention are as follows：
(1) land-saving charcoal ultrafiltration membrane of the invention combination water treatment facilities can make full use of water factory in practice
The dischargeable capacity of existing rectangular sedimentation tank saves sand filter, has greatly saved land resource.
(2) land-saving charcoal ultrafiltration membrane of the invention combines water treatment technology high degree of automation, and management is easy, saves
Human resources make full use of the useful space of coagulative precipitation tank, save land used, without another compared with ozone-BAC process
Ozone, investment reduction cost are made, and effluent quality is excellent, which can replace smelly to a certain extent
Oxygen BAC process.
Description of the drawings
Fig. 1 is one of the structural schematic diagram of the land-saving charcoal ultrafiltration membrane combination water treatment facilities of the present invention.
Fig. 2 is the second structural representation of the land-saving charcoal ultrafiltration membrane combination water treatment facilities of the present invention.
Fig. 3 is the turbidity figure of the land-saving charcoal ultrafiltration membrane combination water treatment technology of the present invention.
Fig. 4 is the oxygen consumption spirogram of the land-saving charcoal ultrafiltration membrane combination water treatment technology of the present invention.
Fig. 5 is the UV of the land-saving charcoal ultrafiltration membrane combination water treatment technology of the present invention254Figure.
Fig. 6 is the ammonia nitrogen figure of the land-saving charcoal ultrafiltration membrane combination water treatment technology of the present invention.
In figure：1, raw water pipeline；2, mixer；3, adding of agent bucket；4, folded plate flocculator；5, inclined-tube sedimentation tank；6, raw
Object activated carbon backflow pool；7, oxidation pond；8, incubator；9, distributor box；10, membrane cisterna；11, water producing tank；12, chemical cleaning case；13、
Dosing pump.
Specific implementation mode
In order to make the object of the invention, technical solution be more clearly understood, below in conjunction with the accompanying drawings, the present invention is made further detailed
It describes in detail bright.
As depicted in figs. 1 and 2, a kind of land-saving charcoal ultrafiltration membrane combines water treatment facilities, including coagulative precipitation tank, life
Object activated carbon backflow pool 6, oxidation pond 7, incubator 8 and ultrafiltration membrane pool；Raw water pipeline 1 is connected on front side of coagulative precipitation tank, it is former
Waterpipe 1 is connected with water sprayer, and adding of agent bucket 3 connects dosing pump 13, and the vacuum that water sprayer is formed enters raw water convenient for medicament
Pipeline 1 is additionally provided with mixer 2 on raw water pipeline 1, and mixer 2 is for mixing the raw water after dosing by hydraulic action
It closes, coagulative precipitation tank includes the folded plate flocculator 4 kept apart by isolating device and inclined-tube sedimentation tank 5；Ultrafiltration membrane pool includes one
A or multiple distributor boxes 9 and membrane cisterna 10 in 9 both sides of each distributor box is set, each membrane cisterna 10 is connected with water producing tank
11 and chemical cleaning case 12.
A kind of land-saving charcoal ultrafiltration membrane combination water treatment technology, includes the following steps：
(1) aluminum sulfate coagulation, precipitation are added into raw water；
(2) biodegradable and absorption, reflux separation are carried out to the water outlet of step (1)；
(3) ultrafiltration membrane physics screening is carried out to the water outlet of step (2).
Step (2) the specific steps are：
The water outlet of step (1) is mixed in a certain ratio after aeration is cultivated into oxidation with reflux bion Powdered Activated Carbon
Pond, then water outlet enter biological activated carbon backflow pool.
Step (3) the specific steps are：
The water outlet of step (2) enters ultrafiltration membrane pool after separation of solid and liquid through distributor box, the physics sieving actoion through ultrafiltration membrane
Further remove pollutant.
Raw water water is 4m3/ h, operation water are 4.5m3The dosage of/h, aluminum sulfate are 20mg/L, coagulating sedimentation water
The power residence time is 70 minutes, and for the sludge concentration control in biological activated carbon backflow pool in 2%-4%, the reflux containing a large amount of BAC is dirty
Mud is added in proportion to precipitation and is discharged, dosage 5-10mg/L.
Ultrafiltration membrane operating parameter：Backwash cycle 60min is discharged 30s before backwash, 60s, aeration flow 6m are aerated before backwash3/
H, backwash time 90s, backwash flow 2m3/ h, time of repose 30s, pumpway is primary every every 4 backwashes draining, water discharge time
60s, design flux 30L/m2.h, maintainability cleaning frequency 15d, sodium hypochlorite clean concentration 200mg/L.
Carrying out practically parameter is as follows：
(1) processing capacity
Processing water is 4m3/ h, to ensure that ultrafiltration membrane pool water inlet is stablized, distributor box needs to keep overflow situation, therefore will fortune
It is 4.5m that water is handled when row3/ h is drawn using pipeline force (forcing) pump and takes raw water.
(2) coagulant dosage
Liquid aluminium sulfate is added using electromagnetic diaphragmpump, the dosage of aluminum sulfate is 20mg/L, and water is equipped with after dosing pump
Emitter.
(3) it mixes
It is mixed using waterpower, after water sprayer adds liquid aluminium sulfate, by caliber DN50, the plastic flexible pipe of long 32m carries out
Waterpower mixes, and is 4.5m by processing water3/ h, incorporation time 50s.
(4) coagulative precipitation tank
Flocculation sediment is designed to integration apparatus, using folded plate flocculation and tube settling, equipment overall dimensions L × D × H=
1.5m × 0.7m × 5m, hydraulic detention time are 70 minutes, daily spoil disposal 1 time.
(5) oxidation pond
Pool size L × D × H=1.5m × 1.0m × 0.9m is aoxidized, main function is by the sludge containing a large amount of PAC through air lift
Afterwards, aeration culture, aeration flow are 5L/m2.s, it adds to precipitation and is discharged in proportion, dosage 5-10mg/L.
Air lift carries mud 2 times a day.
(6) biological activated carbon backflow pool
Pool size L × D × H=1.5m × 0.7m × 4.5m, hydraulic detention time are 63 minutes.Contain a large amount of BAC's
Sludge mix with precipitation water outlet, and absorption and bio-degradation reactions occur, mainly removal coloration, odor, ammonia nitrogen, oxygen demand and micro
Organic matter forms complementation with ultrafiltration membrane.Sludge concentration in biological activated carbon backflow pool is controlled in 2%-4%；When the dirt of air lift
When mud settling ratio is more than 85%, spoil disposal 1 time.
(7) distributor box
Water outlet enters distributor box after BAC processing, and size L × D × H=0.6m × 0.5m, 2, every distributor box corresponds to 2
Membrane cisterna.Main function is water to be evenly distributed in 4 membrane cisternas, and have overflow pipe.
(8) ultrafiltration membrane pool
Membrane cisterna 4, the membrane cisterna are immersed ultrafiltration membrane pond, and size L × D × H=1.0m × 0.55m × 2.8m is adopted respectively
With the submerged ultrafiltration of 4 kinds of unlike materials, respectively 1#- lining nets PVDF；2#- caloic phases PVDF；3#- wet methods PVDF；4#-
PVC, processing water 1m3/ h, membrane flux are designed as 30L/m2h.It is discharged using siphon, adjusts flow of inlet water with spinner flowmeter, surpass
Sound tank gage and trigger valve gate water yield processed, and ultrafiltration membrane pool outlet pipe installs water meter measurement.
(9) other
4 sets of robot control system(RCS), corresponding 4 groups of ultrafiltration membrane pools；
Turbidity and pH monitor 5 sets on-line, and (1 set of raw water, 1 set of precipitation water outlet, BAC are discharged 1 set, and membrane cisterna is discharged 2 sets and supervises in turn
It surveys)；
Air compressor machine, 1 set of dissolving (carrying mud for membrane cisterna backwash, the ponds BAC)；
1 set of air blower is used for oxidation pond and BAC backflow pool oxygenic aerations.
2 sets of backwashing system corresponds to 2 groups of membrane cisternas respectively；
2 sets of maintainability cleaning system corresponds to 2 groups of membrane cisternas respectively.
Fig. 3 shows removal effect of the land-saving charcoal ultrafiltration membrane combination water treatment technology to turbidity of the present invention.
Green grass sand plain water turbidity 6.7-22.7NTU, average haze degree are 16NTU；After coagulating sedimentation and BAC reflux, go out
Water chaotic degree is 4.6-17.1NTU, and the fraction of average out to 10NTU, the turbidity 0.1NTU of four groups of membrane cisternas water outlet reach 99%.
Fig. 4 shows removal effect of the land-saving charcoal ultrafiltration membrane combination water treatment technology to oxygen demand of the present invention.
Green grass sand plain water consume oxygen amount is 1.76-2.34mg/L, average value 2.0mg/L.Four groups of membrane cisternas are discharged oxygen demand
1.04-1.64mg/L, average value 1.35mg/L, removal rate 27%-34%.
Fig. 5 shows that the land-saving charcoal ultrafiltration membrane of the present invention combines water treatment technology to UV254Removal effect.
Green grass sand plain water UV254For 0.022-0.051cm-1, average value 0.031cm-1.Four groups of membrane cisternas are discharged UV254For
0.008-0.029cm-1, average value 0.019cm-1, removal rate 38%-40%.
Fig. 6 shows removal effect of the land-saving charcoal ultrafiltration membrane combination water treatment technology to ammonia nitrogen of the present invention.
Green grass sand plain water ammonia nitrogen is 0.1-0.28mg/L, average value 0.22mg/L.Four groups of membrane cisterna water outlet ammonia nitrogens are 0.02-
0.11mg/L, average value 0.05mg/L, removal rate 73%-79%.
By test arrangement, 1# and 3# ultrafiltration membrane pools are discharged and carry out 106 Indexs measures.
Table 1 is that land-saving charcoal ultrafiltration membrane of the present invention combines conventional 42 indexs of water treatment facilities 1# and 3# membrane cisterna water outlet
Testing result：
Table 2 is that land-saving charcoal ultrafiltration membrane of the present invention combination water treatment facilities 1# and 3# membrane cisterna water outlet is unconventional
64 Indexs measure results：
The result shows that for China《Standards for drinking water quality》106 indexs, Process for Effluent water quality of the invention are excellent
Good, on the basis of saving the area, treatment effect reaches a new height.
Though can be seen that the non-chlorination of water outlet from Tables 1 and 2 testing result, microbiological indicator equally meets country
Standard, this demonstrates notable removal effect of the ultrafiltration to microorganism again.Sand filter is substituted using ultrafiltration membrane, can be reached more
Good physical filtering effect.
The foregoing is merely presently preferred embodiments of the present invention and oneself, not with the present invention for limitation, it is all the present invention essence
Impartial modifications, equivalent substitutions and improvements etc., should be included in the patent covering scope of the present invention made by within refreshing and principle.
Claims (6)
1. a kind of land-saving charcoal ultrafiltration membrane combines water treatment facilities, which is characterized in that including coagulative precipitation tank, bioactivity
Charcoal backflow pool, oxidation pond, incubator and ultrafiltration membrane pool；
Raw water pipeline is connected on front side of coagulative precipitation tank, raw water pipeline is connected with water sprayer, and adding of agent bucket connects dosing pump,
The vacuum that water sprayer is formed enters raw water pipeline convenient for medicament, mixer is additionally provided on raw water pipeline, mixer is for passing through
Hydraulic action mixes the raw water after dosing, and coagulative precipitation tank includes the folded plate flocculator kept apart by isolating device
And inclined-tube sedimentation tank；
Ultrafiltration membrane pool includes one or more distributor box and is arranged membrane cisterna in each distributor box both sides, each membrane cisterna
It is connected with water producing tank and chemical cleaning case.
2. a kind of land-saving charcoal ultrafiltration membrane combines water treatment technology, which is characterized in that include the following steps：
(1) aluminum sulfate coagulation, precipitation are added into raw water；
(2) biodegradable and absorption, reflux separation are carried out to the water outlet of step (1)；
(3) ultrafiltration membrane physics screening is carried out to the water outlet of step (2).
3. land-saving charcoal ultrafiltration membrane according to claim 2 combines water treatment technology, which is characterized in that step (2)
The specific steps are：
The water outlet of step (1) is mixed in a certain ratio after aeration is cultivated into oxidation pond with reflux bion Powdered Activated Carbon,
Then water outlet enters biological activated carbon backflow pool.
4. land-saving charcoal ultrafiltration membrane according to claim 2 combines water treatment technology, which is characterized in that step (3)
The specific steps are：
The water outlet of step (2) enters ultrafiltration membrane pool after separation of solid and liquid through distributor box, and the physics sieving actoion through ultrafiltration membrane is into one
Step removal pollutant.
5. land-saving charcoal ultrafiltration membrane according to claim 2 combines water treatment technology, which is characterized in that raw water water
For 4m3/ h, operation water are 4.5m3The dosage of/h, aluminum sulfate are 20mg/L, and coagulative precipitation tank hydraulic detention time is 70 points
Clock, the sludge concentration control in biological activated carbon backflow pool are added in proportion containing a large amount of BAC returned sludges to heavy in 2%-4%
It forms sediment and is discharged, dosage 5-10mg/L.
6. land-saving charcoal ultrafiltration membrane according to claim 2 combines water treatment technology, which is characterized in that ultrafiltration membrane is transported
Row parameter：Backwash cycle 60min is discharged 30s before backwash, 60s, aeration flow 6m are aerated before backwash3/ h, backwash time 90s, instead
Wash flow 2m3/ h, time of repose 30s, pumpway is primary every every 4 backwashes draining, water discharge time 60s, design flux 30L/
m2.h, maintainability cleaning frequency 15d, sodium hypochlorite clean concentration 200mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411682.3A CN108409058A (en) | 2018-05-02 | 2018-05-02 | Land-saving charcoal ultrafiltration membrane combines water treatment facilities and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411682.3A CN108409058A (en) | 2018-05-02 | 2018-05-02 | Land-saving charcoal ultrafiltration membrane combines water treatment facilities and technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108409058A true CN108409058A (en) | 2018-08-17 |
Family
ID=63137456
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810411682.3A Pending CN108409058A (en) | 2018-05-02 | 2018-05-02 | Land-saving charcoal ultrafiltration membrane combines water treatment facilities and technique |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002355683A (en) * | 2001-05-29 | 2002-12-10 | Kurita Water Ind Ltd | Ultrapure water making method and apparatus |
| CN102515419A (en) * | 2011-11-29 | 2012-06-27 | 同济大学 | Short-flow micro-polluted raw water treatment combined system integrated with adsorption, biological oxidation and membrane separation technologies |
| CN105906086A (en) * | 2016-06-12 | 2016-08-31 | 深圳市水务(集团)有限公司 | Short-flow drinking water deep processing system and technology |
| CN106565034A (en) * | 2016-10-31 | 2017-04-19 | 广东粤港供水有限公司 | Micro-flocculation combined ultrafiltration processing unit of micro-polluted source water |
| CN206814580U (en) * | 2017-05-09 | 2017-12-29 | 山东省城市供排水水质监测中心 | Bio-contact oxidation ultrafiltration integrated purifying processing unit |
-
2018
- 2018-05-02 CN CN201810411682.3A patent/CN108409058A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002355683A (en) * | 2001-05-29 | 2002-12-10 | Kurita Water Ind Ltd | Ultrapure water making method and apparatus |
| CN102515419A (en) * | 2011-11-29 | 2012-06-27 | 同济大学 | Short-flow micro-polluted raw water treatment combined system integrated with adsorption, biological oxidation and membrane separation technologies |
| CN105906086A (en) * | 2016-06-12 | 2016-08-31 | 深圳市水务(集团)有限公司 | Short-flow drinking water deep processing system and technology |
| CN106565034A (en) * | 2016-10-31 | 2017-04-19 | 广东粤港供水有限公司 | Micro-flocculation combined ultrafiltration processing unit of micro-polluted source water |
| CN206814580U (en) * | 2017-05-09 | 2017-12-29 | 山东省城市供排水水质监测中心 | Bio-contact oxidation ultrafiltration integrated purifying processing unit |
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Application publication date: 20180817 |
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