CN117383747A - High-concentration chemical wastewater treatment method - Google Patents
High-concentration chemical wastewater treatment method Download PDFInfo
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- CN117383747A CN117383747A CN202311449275.9A CN202311449275A CN117383747A CN 117383747 A CN117383747 A CN 117383747A CN 202311449275 A CN202311449275 A CN 202311449275A CN 117383747 A CN117383747 A CN 117383747A
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- 239000000126 substance Substances 0.000 title claims abstract description 26
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000001914 filtration Methods 0.000 claims abstract description 32
- 239000010865 sewage Substances 0.000 claims abstract description 30
- 230000003647 oxidation Effects 0.000 claims abstract description 29
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 29
- 238000004062 sedimentation Methods 0.000 claims abstract description 20
- 239000012535 impurity Substances 0.000 claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 13
- 239000002351 wastewater Substances 0.000 claims description 20
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 18
- 239000000084 colloidal system Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 12
- 239000003344 environmental pollutant Substances 0.000 claims description 12
- 239000007800 oxidant agent Substances 0.000 claims description 12
- 231100000719 pollutant Toxicity 0.000 claims description 12
- 239000013049 sediment Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 230000001590 oxidative effect Effects 0.000 claims description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000000645 desinfectant Substances 0.000 claims description 6
- 229960002089 ferrous chloride Drugs 0.000 claims description 6
- 239000008394 flocculating agent Substances 0.000 claims description 6
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 6
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 6
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 239000003208 petroleum 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46176—Galvanic cells
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical 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
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- 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
Abstract
The invention discloses a high-concentration chemical wastewater treatment method, which comprises the following steps: step S01: filtering and removing impurities, and performing a step S02: natural sedimentation, step S03: high-efficiency oxidation, step S04: micro-electrolysis, step S05: sedimentation treatment, step S06: and (5) sand filtering. The beneficial effects of the invention are as follows: the chemical sewage treatment method provided by the invention has the advantages of simple process steps, low cost and easy operation realization, can be suitable for treating and purifying sewage with high turbidity, is suitable for treating and purifying large-batch chemical sewage, ensures the water treatment effect under the conditions of low energy consumption and low cost, further avoids the damage and pollution of the chemical sewage to the environment, and is suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a high-concentration chemical sewage treatment method.
Background
In recent years, with the rapid development of industries such as chemical fertilizers, smelting, pharmacy, petroleum industry and the like, a large amount of high-concentration industrial sewage is generated, if the sewage is discharged into a water body, the damage of hypoxia, eutrophication and the like of the water body can be caused, the self-cleaning capability of the water body is reduced, and the living environment of fishes and other organisms in the water and seriously harm human beings is damaged.
At present, the common treatment methods for high-concentration chemical wastewater in the prior art comprise an ozone oxidation method and a chlorine oxidation method, and the water treatment has good effect, but has large energy consumption and high cost, is not suitable for treating large-batch chemical wastewater, is difficult to meet the normal wastewater treatment requirement, and needs to be further developed and improved.
Disclosure of Invention
The invention aims to solve the problems that the common treatment methods for high-concentration chemical wastewater in the prior art comprise an ozone oxidation method and a chlorine oxidation method, and the water treatment is high in energy consumption and high in cost, is not suitable for treating large-batch chemical wastewater and is difficult to meet the normal wastewater treatment requirement, and provides the high-concentration chemical wastewater treatment method.
The invention realizes the above purpose through the following technical scheme: a high-concentration chemical wastewater treatment method comprises the following steps:
step S01: filtering and removing impurities, discharging the wastewater into a reservoir, and arranging a filter screen provided with an electromagnet at the inlet of the reservoir, wherein impurities and sundries with metal can be adsorbed when larger impurities and foreign matters in the wastewater are intercepted;
step S02: naturally settling, standing the sewage entering the reservoir for 1-2h, settling most of solid particles in the sewage at the bottom of the reservoir, and then pumping away the water above the sediment to obtain the water after primary settlement separation;
step S03: high-efficiency oxidation, namely sending the water body treated in the step S02 into an oxidation pond, adding a strong oxidant under ultraviolet irradiation, then putting an air pipe into water, carrying out aeration treatment on the water body in the oxidation pond for 10-20min, and then standing in the oxidation pond for 0.5-1 h to obtain oxidized water;
step S04: d, micro-electrolysis, namely sending the water treated in the step S03 into an electrolytic cell, generating current flow in the water through a cathode electrode and an anode electrode to enable colloid particles and micro-dispersed pollutants in the sewage to be adsorbed to the electrodes, and then separating the colloid particles and the micro-dispersed pollutants near the electrodes to obtain water after micro-electrolysis;
step S05: sedimentation treatment, namely sending the water treated in the step S04 into a sedimentation tank, adding a flocculating agent, stirring for 5-10min, standing for 0.5-1 h, and separating and discharging flocculated sediment to obtain water subjected to secondary sedimentation treatment;
step S06: and (3) sand filtering, namely sending the water treated in the step (S05) into a sand filtering tank for filtering treatment, and adding a disinfectant into the sand filtering tank to obtain water meeting the discharge standard.
Further, the strong oxidizer in the step S03 is a high-concentration hydrogen peroxide solution, and a catalyst containing ferrous chloride or potassium hydroxide as a main component is also added.
Further, the stirring speed in the step S05 is 30-60r/min.
Further, the flocculant in the step S05 is any one of ferric sulfate or polysilicic acid.
Compared with the prior art, the invention has the beneficial effects that: the chemical sewage treatment method provided by the invention has the advantages of simple process steps, low cost and easy operation realization, can be suitable for treating and purifying sewage with high turbidity, is suitable for treating and purifying large-batch chemical sewage, ensures the water treatment effect under the conditions of low energy consumption and low cost, further avoids the damage and pollution of the chemical sewage to the environment, and is suitable for popularization and use.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The method for treating the high-concentration chemical wastewater shown in the combination of FIG. 1 comprises the following steps:
a high-concentration chemical wastewater treatment method comprises the following steps:
step S01: filtering and removing impurities, discharging the wastewater into a reservoir, and arranging a filter screen provided with an electromagnet at the inlet of the reservoir, wherein impurities and sundries with metal can be adsorbed when larger impurities and foreign matters in the wastewater are intercepted;
step S02: naturally settling, standing the sewage entering the reservoir for 1-2h, settling most of solid particles in the sewage at the bottom of the reservoir, and then pumping away the water above the sediment to obtain the water after primary settlement separation;
step S03: high-efficiency oxidation, namely sending the water body treated in the step S02 into an oxidation pond, adding a strong oxidant under ultraviolet irradiation, then putting an air pipe into water, carrying out aeration treatment on the water body in the oxidation pond for 10-20min, and then standing in the oxidation pond for 0.5-1 h to obtain oxidized water;
step S04: d, micro-electrolysis, namely sending the water treated in the step S03 into an electrolytic cell, generating current flow in the water through a cathode electrode and an anode electrode to enable colloid particles and micro-dispersed pollutants in the sewage to be adsorbed to the electrodes, and then separating the colloid particles and the micro-dispersed pollutants near the electrodes to obtain water after micro-electrolysis;
step S05: sedimentation treatment, namely sending the water treated in the step S04 into a sedimentation tank, adding a flocculating agent, stirring for 5-10min, standing for 0.5-1 h, and separating and discharging flocculated sediment to obtain water subjected to secondary sedimentation treatment;
step S06: and (3) sand filtering, namely sending the water treated in the step (S05) into a sand filtering tank for filtering treatment, and adding a disinfectant into the sand filtering tank to obtain water meeting the discharge standard.
The strong oxidant in the step S03 is a high-concentration hydrogen peroxide solution, and a catalyst with ferrous chloride or potassium hydroxide as a main component is also added; the stirring speed in the step S05 is 30-60r/min; the flocculant in the step S05 is any one of ferric sulfate or polysilicic acid.
The invention is illustrated by the following more specific examples.
Embodiment one:
a high-concentration chemical wastewater treatment method comprises the following steps:
step S01: filtering and removing impurities, discharging the wastewater into a reservoir, and arranging a filter screen provided with an electromagnet at the inlet of the reservoir, wherein impurities and sundries with metal can be adsorbed when larger impurities and foreign matters in the wastewater are intercepted;
step S02: naturally settling, standing the sewage entering the reservoir for 1h, settling most of solid particles in the sewage at the bottom of the reservoir, and then pumping away the water above the sediment to obtain the water after primary settlement separation;
step S03: high-efficiency oxidation, namely sending the water body treated in the step S02 into an oxidation pond, adding a strong oxidant under ultraviolet irradiation, then putting an air pipe into water, carrying out aeration treatment on the water body in the oxidation pond for 10min, and then standing in the oxidation pond for 0.5 h to obtain oxidized water;
step S04: d, micro-electrolysis, namely sending the water treated in the step S03 into an electrolytic cell, generating current flow in the water through a cathode electrode and an anode electrode to enable colloid particles and micro-dispersed pollutants in the sewage to be adsorbed to the electrodes, and then separating the colloid particles and the micro-dispersed pollutants near the electrodes to obtain water after micro-electrolysis;
step S05: sedimentation treatment, namely sending the water treated in the step S04 into a sedimentation tank, adding a flocculating agent, stirring for 5min, standing for 0.5 h, and separating and discharging flocculated sediment to obtain water subjected to secondary sedimentation treatment;
step S06: and (3) sand filtering, namely sending the water treated in the step (S05) into a sand filtering tank for filtering treatment, and adding a disinfectant into the sand filtering tank to obtain water meeting the discharge standard.
The strong oxidant in the step S03 is a high-concentration hydrogen peroxide solution, and a catalyst with ferrous chloride or potassium hydroxide as a main component is also added; the stirring speed in the step S05 is 30r/min; the flocculant in the step S05 is any one of ferric sulfate or polysilicic acid.
Embodiment two:
a high-concentration chemical wastewater treatment method comprises the following steps:
step S01: filtering and removing impurities, discharging the wastewater into a reservoir, and arranging a filter screen provided with an electromagnet at the inlet of the reservoir, wherein impurities and sundries with metal can be adsorbed when larger impurities and foreign matters in the wastewater are intercepted;
step S02: naturally settling, standing the sewage entering the reservoir for 1.5h, settling most of solid particles in the sewage at the bottom of the reservoir, and then pumping away the water above the sediment to obtain the water after primary settlement separation;
step S03: high-efficiency oxidation, namely sending the water body treated in the step S02 into an oxidation pond, adding a strong oxidant under ultraviolet irradiation, then putting an air pipe into water, carrying out aeration treatment on the water body in the oxidation pond for 15min, and then standing in the oxidation pond for 0.8 h to obtain oxidized water;
step S04: d, micro-electrolysis, namely sending the water treated in the step S03 into an electrolytic cell, generating current flow in the water through a cathode electrode and an anode electrode to enable colloid particles and micro-dispersed pollutants in the sewage to be adsorbed to the electrodes, and then separating the colloid particles and the micro-dispersed pollutants near the electrodes to obtain water after micro-electrolysis;
step S05: sedimentation treatment, namely sending the water treated in the step S04 into a sedimentation tank, adding a flocculating agent, stirring for 8min, standing for 0.8 h, and separating and discharging flocculated sediment to obtain water subjected to secondary sedimentation treatment;
step S06: and (3) sand filtering, namely sending the water treated in the step (S05) into a sand filtering tank for filtering treatment, and adding a disinfectant into the sand filtering tank to obtain water meeting the discharge standard.
The strong oxidant in the step S03 is a high-concentration hydrogen peroxide solution, and a catalyst with ferrous chloride or potassium hydroxide as a main component is also added; the stirring speed in the step S05 is 45r/min; the flocculant in the step S05 is any one of ferric sulfate or polysilicic acid.
Embodiment III:
a high-concentration chemical wastewater treatment method comprises the following steps:
step S01: filtering and removing impurities, discharging the wastewater into a reservoir, and arranging a filter screen provided with an electromagnet at the inlet of the reservoir, wherein impurities and sundries with metal can be adsorbed when larger impurities and foreign matters in the wastewater are intercepted;
step S02: naturally settling, standing the sewage entering the reservoir for 2 hours, settling most of solid particles in the sewage at the bottom of the reservoir, and then pumping away the water above the sediment to obtain the water after primary settlement separation;
step S03: high-efficiency oxidation, namely sending the water body treated in the step S02 into an oxidation pond, adding a strong oxidant under ultraviolet irradiation, then putting an air pipe into water, carrying out aeration treatment on the water body in the oxidation pond for 20min, and then standing in the oxidation pond for 1h to obtain oxidized water;
step S04: d, micro-electrolysis, namely sending the water treated in the step S03 into an electrolytic cell, generating current flow in the water through a cathode electrode and an anode electrode to enable colloid particles and micro-dispersed pollutants in the sewage to be adsorbed to the electrodes, and then separating the colloid particles and the micro-dispersed pollutants near the electrodes to obtain water after micro-electrolysis;
step S05: sedimentation treatment, namely sending the water treated in the step S04 into a sedimentation tank, adding a flocculating agent, stirring for 10min, standing for 1 hour, and separating and discharging flocculated sediment to obtain water subjected to secondary sedimentation treatment;
step S06: and (3) sand filtering, namely sending the water treated in the step (S05) into a sand filtering tank for filtering treatment, and adding a disinfectant into the sand filtering tank to obtain water meeting the discharge standard.
The strong oxidant in the step S03 is a high-concentration hydrogen peroxide solution, and a catalyst with ferrous chloride or potassium hydroxide as a main component is also added; the stirring speed in the step S05 is 60r/min; the flocculant in the step S05 is any one of ferric sulfate or polysilicic acid.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. The high-concentration chemical wastewater treatment method is characterized by comprising the following steps of:
step S01: filtering and removing impurities, discharging the wastewater into a reservoir, and arranging a filter screen provided with an electromagnet at the inlet of the reservoir, wherein impurities and sundries with metal can be adsorbed when larger impurities and foreign matters in the wastewater are intercepted;
step S02: naturally settling, standing the sewage entering the reservoir for 1-2h, settling most of solid particles in the sewage at the bottom of the reservoir, and then pumping away the water above the sediment to obtain the water after primary settlement separation;
step S03: high-efficiency oxidation, namely sending the water body treated in the step S02 into an oxidation pond, adding a strong oxidant under ultraviolet irradiation, then putting an air pipe into water, carrying out aeration treatment on the water body in the oxidation pond for 10-20min, and then standing in the oxidation pond for 0.5-1 h to obtain oxidized water;
step S04: d, micro-electrolysis, namely sending the water treated in the step S03 into an electrolytic cell, generating current flow in the water through a cathode electrode and an anode electrode to enable colloid particles and micro-dispersed pollutants in the sewage to be adsorbed to the electrodes, and then separating the colloid particles and the micro-dispersed pollutants near the electrodes to obtain water after micro-electrolysis;
step S05: sedimentation treatment, namely sending the water treated in the step S04 into a sedimentation tank, adding a flocculating agent, stirring for 5-10min, standing for 0.5-1 h, and separating and discharging flocculated sediment to obtain water subjected to secondary sedimentation treatment;
step S06: and (3) sand filtering, namely sending the water treated in the step (S05) into a sand filtering tank for filtering treatment, and adding a disinfectant into the sand filtering tank to obtain water meeting the discharge standard.
2. The method for treating high-concentration chemical wastewater as claimed in claim 1, wherein the strong oxidizer in the step S03 is a high-concentration hydrogen peroxide solution, and a catalyst containing ferrous chloride or potassium hydroxide as a main component is added.
3. The method for treating high-concentration chemical wastewater as claimed in claim 1, wherein the stirring speed in the step S05 is 30-60r/min.
4. The method for treating high-concentration chemical wastewater as claimed in claim 1, wherein the flocculant in the step S05 is any one of ferric sulfate or polysilicic acid.
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| CN202311449275.9A CN117383747A (en) | 2023-11-02 | 2023-11-02 | High-concentration chemical wastewater treatment method |
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| CN202311449275.9A CN117383747A (en) | 2023-11-02 | 2023-11-02 | High-concentration chemical wastewater treatment method |
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