CN108409062A - A kind of commercial metal sewage treatment process and device - Google Patents
A kind of commercial metal sewage treatment process and device Download PDFInfo
- Publication number
- CN108409062A CN108409062A CN201810465140.4A CN201810465140A CN108409062A CN 108409062 A CN108409062 A CN 108409062A CN 201810465140 A CN201810465140 A CN 201810465140A CN 108409062 A CN108409062 A CN 108409062A
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- sewage
- heavy metal
- waste water
- polluted water
- water treatment
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000010865 sewage Substances 0.000 title claims abstract description 24
- 230000008569 process Effects 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 14
- 239000002184 metal Substances 0.000 title claims abstract description 14
- 238000011282 treatment Methods 0.000 title claims description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000005516 engineering process Methods 0.000 claims abstract description 27
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 150000002500 ions Chemical class 0.000 claims abstract description 5
- 239000005416 organic matter Substances 0.000 claims abstract description 5
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 4
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 4
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract 6
- 230000001105 regulatory effect Effects 0.000 claims abstract 3
- 238000001914 filtration Methods 0.000 claims description 12
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 238000005374 membrane filtration Methods 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 235000008534 Capsicum annuum var annuum Nutrition 0.000 claims description 4
- 240000008384 Capsicum annuum var. annuum Species 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000006396 nitration reaction Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 230000001580 bacterial effect Effects 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 230000020477 pH reduction Effects 0.000 claims description 2
- 241001672694 Citrus reticulata Species 0.000 claims 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims 1
- 238000005842 biochemical reaction Methods 0.000 claims 1
- 230000007062 hydrolysis Effects 0.000 claims 1
- 238000006460 hydrolysis reaction Methods 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 9
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 8
- 238000001556 precipitation Methods 0.000 abstract description 5
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 238000010979 pH adjustment Methods 0.000 abstract 3
- 241000894006 Bacteria Species 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000855 fermentation Methods 0.000 abstract 1
- 230000004151 fermentation Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000010419 fine particle Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 231100000704 bioconcentration Toxicity 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- 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
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
Landscapes
- 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 present invention provides a kind of commercial metal sewage disposal technology technique and devices, it is characterised in that：Including following methods and flow,The waste water containing heavy metal is collected through piping first,Into catalysis oxidation pond,Add PAC,Hydrogen peroxide,Ferrous sulfate,Progress initial stage precipitation process,Will be by the waste water after precipitation through piping water conservancy diversion to collecting pit,Carry out PH adjustment,In the supercharging that the waste water of collecting pit is passed through pump,Promote regulating reservoir,It is stirred by the blender installed in regulating reservoir,The organic matter in waste water and heavy metal ion are solved by elevator pump waste water lifting to up flow type waste water fermentation processing again,Carry out primary sedimentation and PH adjustment,Waste water after adjustment is entered into biochemistry pool through piping,Nitrification and denitrification processing are carried out using A/O biochemistry,Organic matter in Decomposition Wastewater and bacterium,Carrying out secondary precipitation and PH adjustment,Then after filter and film process,Reach discharging standards discharge or recycles.This method has energy saving, efficient, processing cost low and the feature of system run all right.
Description
This application involves food processing field more particularly to a kind of commercial metal sewage treatment process and device.
Technical field
The invention belongs to food processing fields, more particularly to a kind of commercial metal sewage treatment process and device.
Background technology
It is well known that with China's expanding economy, the continuous improvement of industrial level, heavy metal pollution increasingly aggravates to have become
For one of the chief threat of residents ' health and ecological environment.In general, heavy metal main source industrial pollution, and industrial pollution is most
It is discharged into environment by waste water, waste residue, exhaust gas, it is very big to be caused to the health of environment and people in people, animal, plant concentration zones
Harm.Heavy metal ion is biodegradable, bioconcentration, the main reason for being their ability to generate significant damage.Therefore,
Heavy metal pollution has caused the highest attention of countries in the world, solves the problems, such as that industrial pollution is extremely urgent to the harm of environment.
Currently, in the sewage treatment field containing heavy metal, main administering method has method of chemical treatment, physical treatment
The methods of method and biological treatment.But that all there is removal effects is unstable for these methods, easy tos produce recontamination and of high cost
The shortcomings of.Therefore, it is badly in need of a kind of heavy metal-polluted water treatment technology and device, can solves that above-mentioned environmental pollution is big and technique is multiple
Miscellaneous, the problem of investment is big, and operating cost is high, long processing period.
Invention content
It is an object of the present invention to provide a kind of heavy metal-polluted water treatment technology and device, can solve above-mentioned environmental pollution it is big and
The problem of complex process, investment are big, and operating cost is high, long processing period.
In order to solve the above technical problems, the present invention uses following technical scheme：
Step 1：PAC, ferrous sulfate are added in catalysis oxidation pond by the separation of heavy metal ions in sewage to adjust dirt
Water pH value is 9~11.
Step 2：Separated in time adds flocculant into the filtrate, is at least repeated twice；
Step 3：Soluble fine particle is removed from the product that the step 2 obtains；
Step 4：Salt or other metallics are isolated from the product that the step 3 obtains, and obtain regeneration
Water and sludge.
The mode for detaching sewage in the step 1 is to be detached using catalytic oxidation.
The process for detaching soluble fine particle in the step 3 is to be realized by membrane filtration system filtering.
The process for removing salt or other metallics in the step 4 is to be filtered by negative pressure essence filtration system
To realize.
The step 11 further includes that sludge is carried out the harmless processing of desiccation.
The metal film sieve pore is 10~60um.
The interval sedimentation time in the step 2 refers to interval 48-72 hours.
A kind of system for above-mentioned heavy metal-polluted water treatment technology, which is characterized in that including catalytic oxidation treatment, upstream
Formula ozone treatment, A/O aerobic biochemicals reaction treatment, membrane filtration system, wherein：
The catalytic oxidation treatment, for detaching the metal heavy ion in sewage；
The up flow type ozone treatment, for organic matter degradation will to be carried out to sewage；
The A/O aerobic biochemicals reaction treatment carries out acidification hydrolization and nitration denitrification to sewage, and further reducing has
Machine object bacterial concentration；
The advantages of the present invention are：
1) heavy metal-polluted water treatment technology described herein, ' materialization ' treatment technology and metal membrane separation technique is efficient
In conjunction with, can quickly with production synchronization process recycled water in COD, BOD, SS content all in controlled range, can also realize
Production stain disease is handled on a large scale in real time, and flow is short, and equipment operation is convenient, it can be achieved that centralized control；
2) heavy metal-polluted water treatment technology described herein is realized that whole process is pollution-free, can be greatly reduced even
Substantially prevent the pollutant emission in bubble green pepper technique, environment is also protected while pollutant process cost is small；
3) heavy metal-polluted water treatment technology described herein reduces cost of investment, shortens the construction period, novel technique
With the advantage that high in technological content, input-output ratio is high, the construction period is short, investment is quick.
Description of the drawings
Fig. 1 is the flow chart of heavy metal-polluted water treatment technology in the application；
Fig. 2 is the structure chart of the system of heavy metal-polluted water treatment technology in the application.
Specific implementation mode：
Embodiment one
As shown in the flow chart of heavy metal-polluted water treatment technology in Fig. 1 the application, a kind of heavy metal-polluted water treatment technology,
It is characterized in that, is handled, included the following steps for the sewage in bubble green pepper infusion technology：
Step 1：Sewage is detached and is precipitated by addition PAC, ferrous sulfate, can be with filtration volume by this process
Larger impurity.
Step 2：Separated in time adds flocculant, repeatedly, is convenient for contamination precipitation, is conducive to eliminating particle object, and
Separated in time contamination precipitation is more complete, and repeatedly addition can make flocculated effect more preferable, and cost is lower.Preferably, step
Separated in time in two refers to interval 48-72 hours.
Step 3：Soluble fine particle is detached；The solubility fine particle, is that diameter is solvable within 15um
Property object, has a significant impact, therefore this step will greatly improve slurry because it is difficult to be removed by above-mentioned steps, but to water quality
Purity.
Step 4：Salt or other metallics are removed, particulate separations such as regenerated recycle-water and sludge and dense are obtained
Contracting is handled.
The product that above-mentioned technical proposal obtains be regenerated recycle-water and sludge, the regenerated recycle-water can with direct emission,
Because its water quality reaches basic demand or the production application recycle-water design objective of the industrial water quality of national recycled water, such as
This, can make the use in entire production technology for fresh water greatly reduce, and reduce traditional sewage disposal skill
Complicated procedures of forming in art consumes the larger energy, has squeezed product profit, and the less, energy is taken in this programme whole process
It consumes less, at low cost.And other impurity, the sludge filtered carries out drying and other treatment.
It is to be realized by the filtering of metal membrane filter system by the process that soluble fine particle detaches, can obtains general
Process reuse water quality.UF membrane filtering refers to penetrating film as separating medium, in the effect of the certain motive force in film both sides using selectivity
Under, penetrate film with making certain component selection in raw material, to enable mixture to detach, to achieve the purpose that purification, filtering
Separation process；And metal film is gradually paid attention to as a kind of newer technology in water treatment field, with organic and inoranic membrane
Compare, have preferable chemical stability, heat resistance, acid and alkali-resistance, long lifespan, be easy to change and overhaul, convenient for safeguard and cleaning,
Regeneration condition preferably, pressure resistance, will not rupture, antidetonation, the features such as being easily recycled, therefore will be soluble using metal membrane filter system
Fine particle detaches.
It is to be realized by the filtering of negative pressure essence filtration system by the process that salt or other metallics remove, obtains fine
Change recycle-water.Suction type filter is mainly the suction by filter pump, increases the ability of penetration by liquid filter cloth, and sundries is isolated
Filter cake is formed, filtering is participated in.Its advantage is high degree of automation, and filtering accuracy is good, the utilization rate higher of filter cloth.Above-mentioned technique,
By the efficient combination of ' materialization ' treatment technology and metal membrane separation technique, negative pressure refined filtration technology, quickly synchronous with production can locate
The recycled water of reason can also all be realized in controlled range with meeting the needs of different production workshop sections in COD, BOD, SS content
Production stain disease is handled on a large scale in real time, and flow is short, and equipment operation is convenient, it can be achieved that centralized control.
Claims (8)
1. a kind of commercial metal sewage disposal technology technique and device, it is characterised in that including following scheme step：
Heavy metal-polluted water treatment technology as described in claim 1, which is characterized in that carry out sewage in the step 2
Oxidation reaction is that PAC is added in use in catalysis oxidation pond, ferrous sulfate adjusts bubble green pepper salt marsh water ph value.
2. heavy metal-polluted water treatment technology as described in claim 1, which is characterized in that in the step 4 at up flow type ozone
The process for managing the product removal obtained from three regulating reservoir is realized by pulse rotary spraying hydrophone, membrane filtration system filtering.
3. heavy metal-polluted water treatment technology as described in claim 1, which is characterized in that settlement of sewage is from institute in the step 5
It states product addition PAC, the hydrogen peroxide obtained in four up flow type ozone treatments and carries out mud-water separation and sewage HP value adjustment processing.
4. heavy metal-polluted water treatment technology as described in claim 1, which is characterized in that carry out acid to sewage in the step 6
Change hydrolysis and nitration denitrification, reduce organic concentration, remove part ammonia nitrogen, the O grades of biological contact oxidation ponds that then become a mandarin carry out
Aerobic biochemical reaction treatment.
5. heavy metal-polluted water treatment technology as described in claim 1, which is characterized in that settlement of sewage is from institute in the step 7
It states product addition PAC, the hydrogen peroxide obtained in four up flow type ozone treatments and carries out mud-water separation and sewage HP value adjustment processing.
6. heavy metal-polluted water treatment technology as described in claim 1, which is characterized in that the membrane filtration system aperture is 10~
Between 60um, the pressure of operation is in 1~1.8MPa.
7. heavy metal-polluted water treatment technology as described in claim 1, which is characterized in that described includes Step 2: Step 5: step
Rapid seven sludge carries out harmless treatment.
8. a kind of system for the heavy metal-polluted water treatment technology described in claim 1 is used for bubble green pepper salt marsh hydraulic art,
It is characterized in that, including catalytic oxidation treatment, up flow type ozone treatment, A/O aerobic biochemicals reaction treatment, membrane filtration system, wherein：
The catalytic oxidation treatment, for detaching the metal heavy ion in sewage；
The up flow type ozone treatment, for organic matter degradation will to be carried out to sewage；
The A/O aerobic biochemicals reaction treatment carries out acidification hydrolization and nitration denitrification to sewage, further reduces organic matter
Bacterial concentration；
The membrane filtration system isolates salt and other metallics from the product that the step 7 obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465140.4A CN108409062A (en) | 2018-05-16 | 2018-05-16 | A kind of commercial metal sewage treatment process and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465140.4A CN108409062A (en) | 2018-05-16 | 2018-05-16 | A kind of commercial metal sewage treatment process and device |
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| Publication Number | Publication Date |
|---|---|
| CN108409062A true CN108409062A (en) | 2018-08-17 |
Family
ID=63139676
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810465140.4A Pending CN108409062A (en) | 2018-05-16 | 2018-05-16 | A kind of commercial metal sewage treatment process and device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108409062A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231684A (en) * | 2018-10-18 | 2019-01-18 | 中化重庆涪陵化工有限公司 | Purify the processing method and its system of ardealite storage yard penetrating fluid |
| CN112777874A (en) * | 2021-01-20 | 2021-05-11 | 喻婕 | Method for treating acidic wastewater containing heavy metals |
-
2018
- 2018-05-16 CN CN201810465140.4A patent/CN108409062A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231684A (en) * | 2018-10-18 | 2019-01-18 | 中化重庆涪陵化工有限公司 | Purify the processing method and its system of ardealite storage yard penetrating fluid |
| CN109231684B (en) * | 2018-10-18 | 2021-09-10 | 中化重庆涪陵化工有限公司 | Treatment method and system for purifying phosphogypsum storage yard penetrating fluid |
| CN112777874A (en) * | 2021-01-20 | 2021-05-11 | 喻婕 | Method for treating acidic wastewater containing heavy metals |
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Application publication date: 20180817 |