CN117023783A - Biochemical inhibition recovery medicament for heavy metal capturing agent and preparation method and application thereof - Google Patents
Biochemical inhibition recovery medicament for heavy metal capturing agent and preparation method and application thereof Download PDFInfo
- Publication number
- CN117023783A CN117023783A CN202310846878.6A CN202310846878A CN117023783A CN 117023783 A CN117023783 A CN 117023783A CN 202310846878 A CN202310846878 A CN 202310846878A CN 117023783 A CN117023783 A CN 117023783A
- Authority
- CN
- China
- Prior art keywords
- parts
- heavy metal
- sulfate
- agent
- biochemical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 119
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 90
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 58
- 238000011084 recovery Methods 0.000 title claims abstract description 49
- 239000003814 drug Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000010802 sludge Substances 0.000 claims abstract description 31
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims abstract description 30
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims abstract description 29
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 28
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims abstract description 27
- 125000000129 anionic group Chemical group 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 16
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000001879 copper Chemical class 0.000 claims abstract description 8
- 150000002815 nickel Chemical class 0.000 claims abstract description 8
- 150000003751 zinc Chemical class 0.000 claims abstract description 8
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 46
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 24
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 23
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 23
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 23
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 23
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 23
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 23
- 229960001763 zinc sulfate Drugs 0.000 claims description 23
- 229960003237 betaine Drugs 0.000 claims description 12
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 8
- 239000002516 radical scavenger Substances 0.000 claims description 7
- OYPRJOBELJOOCE-IGMARMGPSA-N Calcium-40 Chemical group [40Ca] OYPRJOBELJOOCE-IGMARMGPSA-N 0.000 claims description 6
- HDTRYLNUVZCQOY-UHFFFAOYSA-N α-D-glucopyranosyl-α-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OC1C(O)C(O)C(O)C(CO)O1 HDTRYLNUVZCQOY-UHFFFAOYSA-N 0.000 claims description 5
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 5
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims description 5
- 229930195725 Mannitol Natural products 0.000 claims description 5
- HDTRYLNUVZCQOY-WSWWMNSNSA-N Trehalose Natural products O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-WSWWMNSNSA-N 0.000 claims description 5
- HDTRYLNUVZCQOY-LIZSDCNHSA-N alpha,alpha-trehalose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-LIZSDCNHSA-N 0.000 claims description 5
- 239000000594 mannitol Substances 0.000 claims description 5
- 235000010355 mannitol Nutrition 0.000 claims description 5
- 230000001737 promoting effect Effects 0.000 claims description 5
- 239000000600 sorbitol Substances 0.000 claims description 5
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 4
- 239000004471 Glycine Substances 0.000 claims description 3
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 2
- OTPDWCMLUKMQNO-UHFFFAOYSA-N 1,2,3,4-tetrahydropyrimidine Chemical compound C1NCC=CN1 OTPDWCMLUKMQNO-UHFFFAOYSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 53
- 239000010865 sewage Substances 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 24
- 230000008569 process Effects 0.000 abstract description 10
- 238000005273 aeration Methods 0.000 description 18
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 17
- 229910021645 metal ion Inorganic materials 0.000 description 12
- 238000012360 testing method Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 4
- 231100000419 toxicity Toxicity 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 125000001741 organic sulfur group Chemical group 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002503 metabolic effect Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007059 acute toxicity Effects 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The application provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, a preparation method and application thereof, and relates to the field of sewage treatment. The biochemical inhibition recovery medicament for the heavy metal capturing agent comprises the following raw material components in parts by weight: 1 to 5 parts of anionic polyacrylamide, 2 to 13 parts of hydroxyapatite, 5 to 10 parts of zinc salt, 15 to 30 parts of aluminum salt, 1 to 5 parts of nickel salt, 1 to 10 parts of copper salt, 0.5 to 3 parts of calcium hypochlorite and 20 to 50 parts of biocompatible solute. The agent formula provided by the application can effectively solve the problem that sewage plants inhibit the activity of sludge in a biochemical system due to the fact that the inflow water contains the conventional heavy metal capturing agent, and has the characteristics of high efficiency, convenience in operation and quick recovery of the nitrification capacity of the biochemical system. The biochemical inhibition and recovery agent for the heavy metal capturing agent provided by the application can be directly added at different points where a sewage plant contacts with activated sludge, is flexible and convenient to operate, and does not need to adjust the operation parameters of the original process.
Description
Technical Field
The application relates to the field of sewage treatment, in particular to a biochemical inhibition recovery medicament for a heavy metal capturing agent, a preparation method and application thereof.
Background
With the rapid development of industries such as electroplating, chemical industry, metal pickling, metallurgy, electronics and the like, a large amount of wastewater containing heavy metals can be generated during production. The heavy metal-containing wastewater treatment process needs to pre-treat heavy metal ions to ensure that the content of the heavy metal ions reaches the standard, and then the wastewater enters a biochemical system to treat other pollutants.
Among the numerous methods for pretreatment of heavy metals, the chemical precipitation method by adding a heavy metal scavenger has the advantages of low investment cost, high removal efficiency, simple operation and stable and reliable operation, and is widely used. However, in engineering application, operators often need to add excessive heavy metal capturing agents to ensure that the heavy metals in the effluent reach the standards stably. The common DTC and TMT heavy metal capturing agents contain organic sulfur components which can efficiently capture and precipitate heavy metal ions in wastewater, but the organic sulfur components have better biocompatibility, are easy to permeate into microorganism cells after entering a biochemical system, and are chelated with metal ions at central active sites of key functional enzymes to interfere with the enzyme catalytic reaction process, so that the biochemical treatment effect is deteriorated. For example, when a sewage plant is subjected to residual heavy metal capturing agent discharge, the biochemical system is characterized in that the dissolved oxygen in an aerobic tank is gradually increased, the nitrification effect of ammonia nitrogen is rapidly deteriorated, and the total nitrogen in the effluent is subject to exceeding standard.
For industrial park sewage plants or town sewage plants, the upstream take-over enterprises are generally required to discharge the heavy metal treatment in the wastewater into the sewage plants after reaching standards, and the upstream enterprises often overuse heavy metal capturing agents for ensuring that the heavy metal is stable and reaches standards, but the sewage plants are difficult to discover in time and take feasible control measures, so that the biochemical system effect is deteriorated, and the normal operation of the sewage plants is affected. When the phenomenon that the biochemical system is deteriorated due to the fact that excessive heavy metal capturing agents are discharged is found, the sewage plant can only stop water inflow temporarily, the biochemical treatment capacity is gradually recovered through the metabolic activity of microorganisms, and the benefit of the sewage plant is seriously affected. Currently there is a lack of effective countermeasures against this problem to minimize the losses in sewage plants.
Therefore, there is a need in the art to develop a simple and efficient method for quickly recovering biochemical inhibition of heavy metal capturing agents, so as to ensure stable operation of sewage plants.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to overcome the defect that the biochemical system is deteriorated due to the fact that excessive heavy metal capturing agent is discharged into the sewage plant so as to influence the normal operation of the sewage plant in the prior art, thereby providing a heavy metal capturing agent biochemical inhibition recovery medicament, and a preparation method and application thereof.
In one aspect of the application, the application provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, which comprises the following raw material components in parts by weight: 1 to 5 parts of anionic polyacrylamide, 2 to 13 parts of hydroxyapatite, 5 to 10 parts of zinc salt, 15 to 30 parts of aluminum salt, 1 to 5 parts of nickel salt, 1 to 10 parts of copper salt, 0.5 to 3 parts of calcium hypochlorite and 20 to 50 parts of biocompatible solute.
Further, the biochemical inhibition recovery agent for the heavy metal capturing agent comprises the following raw material components in parts by weight: 2-4 parts of anionic polyacrylamide, 3-13 parts of hydroxyapatite, 6-8 parts of zinc salt, 16-28 parts of aluminum salt, 2-4 parts of nickel salt, 2-8 parts of copper salt, 1-2 parts of calcium hypochlorite and 25-48 parts of biocompatible solute.
Further, the biocompatible solute comprises at least one of trehalose, betaine, tetrahydropyrimidine, mannitol, glycine, and sorbitol.
Further, the zinc salt comprises at least one of zinc sulfate, zinc chloride and zinc nitrate; the aluminum salt comprises at least one of aluminum chloride, aluminum sulfate and aluminum nitrate; the nickel salt comprises at least one of nickel sulfate, nickel chloride and nickel nitrate; the copper salt comprises at least one of copper sulfate, copper chloride and copper nitrate.
Further, the biochemical inhibition recovery agent for the heavy metal capturing agent comprises the following raw material components in parts by weight: 3 parts of anionic polyacrylamide, 12 parts of hydroxyapatite, 7 parts of zinc sulfate, 27 parts of aluminum chloride, 3 parts of nickel sulfate, 6 parts of copper sulfate, 2 parts of calcium hypochlorite and 40 parts of betaine.
Further, the biochemical inhibition recovery agent for the heavy metal capturing agent comprises the following raw material components in parts by weight:
1 part of anionic polyacrylamide, 2 parts of hydroxyapatite, 5 parts of zinc sulfate, 15 parts of aluminum chloride, 1 part of nickel sulfate, 1 part of copper sulfate, 0.5 part of calcium hypochlorite and 20 parts of trehalose; or alternatively
2 parts of anionic polyacrylamide, 4 parts of hydroxyapatite, 6 parts of zinc sulfate, 20 parts of aluminum chloride, 2 parts of nickel sulfate, 3 parts of copper sulfate, 1 part of calcium hypochlorite and 30 parts of betaine; or alternatively
3 parts of anionic polyacrylamide, 6 parts of hydroxyapatite, 7 parts of zinc sulfate, 25 parts of aluminum chloride, 3 parts of nickel sulfate, 4 parts of copper sulfate, 1.5 parts of calcium hypochlorite and 40 parts of mannitol; or alternatively
4 parts of anionic polyacrylamide, 8 parts of hydroxyapatite, 8 parts of zinc sulfate, 13 parts of aluminum chloride, 4 parts of nickel sulfate, 8 parts of copper sulfate, 2 parts of calcium hypochlorite and 50 parts of glycine; or alternatively
5 parts of anionic polyacrylamide, 10 parts of hydroxyapatite, 10 parts of zinc sulfate, 30 parts of aluminum chloride, 5 parts of nickel sulfate, 10 parts of copper sulfate, 3 parts of calcium hypochlorite and 28 parts of sorbitol.
In a second aspect, the application provides a preparation method of the biochemical inhibition recovery medicament for the heavy metal capturing agent, which comprises the following steps: and uniformly mixing the raw material components of the heavy metal capturing agent biochemical inhibition restoration agent.
In a third aspect, the application provides an application of the heavy metal capturing agent biochemical inhibition restoration agent in promoting the biochemical inhibition restoration of the heavy metal capturing agent.
Further, the method for promoting the recovery of the biochemical inhibition of the heavy metal capturing agent comprises the following steps: and adding the heavy metal capturing agent biochemical inhibition recovery agent into the activated sludge subjected to biochemical inhibition by the heavy metal capturing agent.
Further, the heavy metal capturing agent comprises DTC type and/or TMT type heavy metal capturing agents.
The technical scheme of the application has the following advantages:
1. the application provides a heavy metal capturing agent biochemical inhibition restoration medicament for promoting the biochemical inhibition restoration of the heavy metal capturing agent, which comprises the following raw materials: anionic polyacrylamide, hydroxyapatite, zinc salts, aluminum salts, nickel salts, copper salts, calcium hypochlorite, and biocompatible solutes. And forming slightly soluble hydroxyapatite and soluble hydroxyapatite in the process of mixing and dissolving the heavy metal capturing agent biochemical inhibition recovery medicament. In one aspect, microbial extracellular reactions occur: the slightly soluble hydroxyapatite forms active carrier particles containing metal ions (zinc, aluminum, nickel, copper and calcium) with charges on the surfaces, and the active carrier particles adsorb activated sludge under the coagulation action of polyacrylamide, so that residual organic sulfur in wastewater is subjected to chelation, adsorption and other physical and chemical reactions on the surfaces of the active carrier particles to be fixed; on the other hand, intracellular reactions occur: the dissolved hydroxyapatite is used as a carrier to transport biocompatible solutes and metal ions into microbial cells, the biocompatible substances supplement substances required by the recovery of the microorganisms after being stressed, the metal ions provide ions required by the metabolism of the microorganisms, and the rapid recovery of metabolic activities is realized by strengthening the stress tolerance of the microorganisms. Therefore, the medicament formula provided by the application can effectively solve the problem that the sewage plant inhibits the activity of the biochemical system sludge due to the fact that the inflow water contains the conventional heavy metal capturing agent, and has the characteristics of high efficiency, convenience in operation and quick recovery of the nitrification capacity of the biochemical system.
2. The biochemical inhibition and recovery agent for the heavy metal capturing agent provided by the application can be directly added at different points where a sewage plant contacts with activated sludge, is flexible and convenient to operate, and does not need to adjust the operation parameters of the original process.
3. The heavy metal capturing agent biochemical inhibition recovery agent provided by the application is added when biochemical inhibition occurs, and can stop adding after a biochemical system recovers, so that the problem of exceeding of metal ions is avoided, and meanwhile, the heavy metal capturing agent biochemical inhibition recovery agent is nontoxic and harmless to activated sludge and does not cause other negative effects.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Detailed Description
The following detailed description of the embodiments of the application is intended to be illustrative of the application and is not to be taken as limiting the application.
The application will now be described with reference to specific examples, which are intended to be illustrative only and not limiting in any way.
The following test examples refer to the following criteria:
ammonia nitrogen concentration: GB/T7479-87 sodium reagent colorimetric method for measuring ammonium in water quality;
metal ion concentration (aluminum, zinc, nickel, copper): GB/T5750.6-2006 inductively coupled plasma emission spectrometry;
inhibition rate of luminescent bacteria: GB/T15441-1995 determination of acute toxicity of Water quality.
The specific experimental procedures or conditions are not noted in the examples and may be followed by the operations or conditions of conventional experimental procedures described in the literature in this field. The materials or instruments used are all conventional products commercially available, including but not limited to those used in the examples of the present application.
Example 1
The embodiment provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, which is prepared by mixing the following raw materials in parts by weight: 3 parts of anionic polyacrylamide, 12 parts of hydroxyapatite, 7 parts of zinc sulfate, 27 parts of aluminum chloride, 3 parts of nickel sulfate, 6 parts of copper sulfate, 2 parts of calcium hypochlorite and 40 parts of betaine.
Example 2
The embodiment provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, which is prepared by mixing the following raw materials in parts by weight: 1 part of anionic polyacrylamide, 2 parts of hydroxyapatite, 5 parts of zinc sulfate, 15 parts of aluminum chloride, 1 part of nickel sulfate, 1 part of copper sulfate, 0.5 part of calcium hypochlorite and 20 parts of trehalose.
Example 3
The embodiment provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, which is prepared by mixing the following raw materials in parts by weight: 2 parts of anionic polyacrylamide, 4 parts of hydroxyapatite, 6 parts of zinc sulfate, 20 parts of aluminum chloride, 2 parts of nickel sulfate, 3 parts of copper sulfate, 1 part of calcium hypochlorite and 30 parts of betaine.
Example 4
The embodiment provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, which is prepared by mixing the following raw materials in parts by weight: 3 parts of anionic polyacrylamide, 6 parts of hydroxyapatite, 7 parts of zinc sulfate, 25 parts of aluminum chloride, 3 parts of nickel sulfate, 4 parts of copper sulfate, 1.5 parts of calcium hypochlorite and 40 parts of mannitol.
Example 5
The embodiment provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, which is prepared by mixing the following raw materials in parts by weight: 4 parts of anionic polyacrylamide, 8 parts of hydroxyapatite, 8 parts of zinc sulfate, 13 parts of aluminum chloride, 4 parts of nickel sulfate, 8 parts of copper sulfate, 2 parts of calcium hypochlorite and 50 parts of glycine.
Example 6
The embodiment provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, which is prepared by mixing the following raw materials in parts by weight: 5 parts of anionic polyacrylamide, 10 parts of hydroxyapatite, 10 parts of zinc sulfate, 30 parts of aluminum chloride, 5 parts of nickel sulfate, 10 parts of copper sulfate, 3 parts of calcium hypochlorite and 28 parts of sorbitol.
Comparative example 1
The comparative example provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, which is prepared by mixing the following raw materials in parts by weight: 1 part of anionic polyacrylamide, 1 part of hydroxyapatite, 2 parts of zinc sulfate, 5 parts of aluminum chloride, 1 part of nickel sulfate, 1 part of copper sulfate, 0.5 part of calcium hypochlorite and 88.5 parts of betaine.
Comparative example 2
The comparative example provides a biochemical inhibition recovery medicament for a heavy metal capturing agent, which is prepared by mixing the following raw materials in parts by weight: 1 part of anionic polyacrylamide, 14 parts of hydroxyapatite, 15 parts of zinc sulfate, 10 parts of aluminum chloride, 20 parts of nickel sulfate, 20 parts of copper sulfate, 10 parts of calcium hypochlorite and 10 parts of betaine.
Experimental example 1 Effect of example 1 agent on recovery of Biochemical inhibition of heavy Metal Capture agent
The experimental process comprises the following steps:
taking water in a biochemical pool of a sewage plant which runs normally, respectively preparing water samples of DTC type heavy metal capturing agents and TMT type heavy metal capturing agents with the concentration of 2mg/L, simultaneously taking the water sample without the heavy metal capturing agents as a reference, adding fresh activated sludge with normal activity into each water sample for aeration, wherein the concentration of the sludge in the reaction process is 5000mg/L, the water temperature is 25 ℃, the ammonia nitrogen in the water is 29mg/L, and after aeration is carried out for 2 hours, respectively taking the water samples to detect the ammonia nitrogen concentration in the water samples. And (3) aerating water samples containing DTC and TMT heavy metal capturing agents for 2 hours, respectively adding 5mg/L of the agents provided in the embodiment 1, continuously aerating, simultaneously taking treatment without adding the agents as a contrast, and respectively taking the water samples for 2 hours and 4 hours for detecting the ammonia nitrogen concentration in the water samples. The test results are shown in Table 1.
Table 1 example 1 results of recovery of biochemical inhibition of a drug on a simulated water sample
As shown in Table 1, the ammonia nitrogen concentration in the normal water sample after being added with activated sludge can be reduced to 0.5mg/L, and for the water sample containing the heavy metal capturing agent, the activated sludge is aerated, the ammonia nitrogen concentration is found to be rapidly increased, and the excessive heavy metal capturing agent can cause biochemical inhibition of the activated sludge. When the agent provided in the example is added for continuous aeration, the ammonia nitrogen concentration is obviously reduced, and the agent is hardly reduced or the reduction degree is small without adding the agent, so that the agent provided in the example 1 of the application is used for treating the activated sludge inhibited by the heavy metal capturing agent, and the nitrification recovery effect of the sludge is better.
Experimental example 2 effects of the agents of examples 2 to 6 on recovery of Biochemical inhibition of heavy Metal Capture Agents
The experimental process comprises the following steps:
taking water in a biochemical pond of a sewage plant which runs normally, preparing 5 parts of water samples of a DTC heavy metal capturing agent with the concentration of 2mg/L, adding fresh activated sludge with normal activity into each water sample for aeration, wherein the concentration of the sludge in the reaction process is 5000mg/L, the water temperature is 25 ℃, the ammonia nitrogen in the water is 29mg/L, after 2 hours of aeration, respectively adding 5mg/L of the agent provided in examples 2-6 for continuous aeration, standing after 4 hours of aeration, and taking supernatant to detect the concentration of the ammonia nitrogen. The test results are shown in Table 2.
Table 2 results of recovery of biochemical inhibition of simulated water samples by the agents of examples 2 to 6
As shown in Table 2, the treatment of activated sludge inhibited by heavy metal capturing agents with each of the agents provided in examples 2 to 6 of the present application was excellent in the recovery effect of nitrification of sludge.
Experimental example 3 Effect of Single component in medicament on recovery of Biochemical inhibition of heavy Metal Capture agent
The experimental process comprises the following steps:
taking water in a biochemical pond of a sewage plant which runs normally, preparing 9 parts of water samples of DTC heavy metal capturing agents with the concentration of 2mg/L, adding fresh activated sludge with normal activity into each water sample for aeration, wherein the concentration of the sludge in the reaction process is 5000mg/L, the water temperature is 25 ℃, the ammonia nitrogen in the water is 29mg/L, after 2 hours of aeration, respectively adding the agent of the example 1 and 5mg/L of single component, continuing aeration, standing after 4 hours of aeration, taking supernatant fluid, and detecting the concentration of the ammonia nitrogen. The test results are shown in Table 3.
TABLE 3 Biochemical inhibition recovery results of simulated Water samples with Single component of Agents
| Additive components | Ammonia nitrogen concentration (mg/L) |
| EXAMPLE 1 pharmaceutical preparation | 0.5 |
| Anionic polyacrylamide | 6 |
| Hydroxy phosphorusLimestone particle | 5.2 |
| Zinc sulfate | 5.8 |
| Aluminum chloride | 5.6 |
| Nickel sulfate | 6 |
| Copper sulfate | 5.8 |
| Calcium hypochlorite | 5.8 |
| Betaine (betaine) | 5.2 |
As shown in Table 3, the agent of example 1 of the present application has an obvious positive effect on the recovery of the nitrification effect of activated sludge, whereas the removal effect of ammonia nitrogen of activated sludge is not remarkably recovered by using any one of the single components.
Experimental example 4 test of the effects of the agents of example 1 and comparative examples 1 to 2 on recovery of Biochemical inhibition of heavy Metal Capture agent and detection of risk of exceeding of Metal ion
The experimental process comprises the following steps:
taking water in a biochemical pond of a sewage plant which runs normally, preparing 3 parts of water samples of a DTC heavy metal capturing agent with the concentration of 2mg/L, adding fresh activated sludge with normal activity into each water sample for aeration, wherein the concentration of the sludge in the reaction process is 5000mg/L, the water temperature is 25 ℃, the ammonia nitrogen in the water is 29mg/L, after 2 hours of aeration, respectively adding 5mg/L of the agent provided in the example 1 and the comparative example 1-2 for continuous aeration, standing after 4 hours of aeration, and taking supernatant to detect the concentration of the ammonia nitrogen and the concentration of metal ions in the supernatant. The test results are shown in Table 4.
Table 4 results of recovery of biochemical inhibition of the agent on the simulated water sample and concentration of metal ions
As shown in table 4, the agent provided in embodiment 1 of the present application treats activated sludge inhibited by heavy metal capturing agent, and has good recovery effect of nitrification of sludge, and meanwhile, no risk of exceeding standard of metal ions. The formulation of the agent of comparative example 1 has too high a content of biocompatible solutes, which, although having a certain effect on the recovery of nitrification of sludge, is far from the agent provided in example 1; the pharmaceutical formulation of comparative example 2 has a higher metal ion content, a lower biocompatible solute content, a very low recovery effect on sludge digestion, and a very high risk of exceeding the metal ion concentration.
Experimental example 5 Effect of the agent of example 1 on the biotoxicity of residual wastewater containing heavy Metal Capture Agents
Acute luminous bacterial toxicity is a method for evaluating sewage toxicity, and has the advantages of high sensitivity and quick test. For the sewage to be treated, the change of comprehensive toxicity before and after sewage treatment can be characterized by testing the luminous inhibition rate of luminous bacteria before and after sewage treatment.
The experimental process comprises the following steps:
taking water in a biochemical pond of a sewage plant which runs normally, respectively preparing 2 parts of water samples of DTC heavy metal capturing agents with the concentration of 2mg/L, taking the water samples without the heavy metal capturing agents as blank groups, adding fresh activated sludge with normal activity into each water sample for aeration, wherein the concentration of the sludge in the reaction process is 5000mg/L, the water temperature is 25 ℃, the ammonia nitrogen in the water is 29mg/L, and after aeration is carried out for 2 hours, respectively taking the water samples to detect the inhibition rate of luminescent bacteria. After the water sample containing the DTC heavy metal capturing agent is aerated for 2 hours, one part of the water sample is added with 5mg/L of the agent provided in the embodiment 1 and then is continuously aerated, the other part of the water sample is continuously aerated without adding the agent, the water sample is used as a control group, and after 4 hours of aeration, the water sample is stood and the supernatant is taken to detect the luminous bacteria inhibition rate. The test results are shown in Table 5.
TABLE 5 Effect of example 1 Agents on toxicity of acute light emitting bacteria in simulated Water samples
As shown in Table 5, the water sample containing the residual heavy metal capturing agent has certain biotoxicity, and the treatment of the water sample containing the residual heavy metal capturing agent by adopting the agent provided by the embodiment 1 of the application can obviously reduce the biotoxicity of the water sample and has certain environmental benefit.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. The biochemical inhibition recovery medicament for the heavy metal capturing agent is characterized by comprising the following raw material components in parts by weight: 1 to 5 parts of anionic polyacrylamide, 2 to 13 parts of hydroxyapatite, 5 to 10 parts of zinc salt, 15 to 30 parts of aluminum salt, 1 to 5 parts of nickel salt, 1 to 10 parts of copper salt, 0.5 to 3 parts of calcium hypochlorite and 20 to 50 parts of biocompatible solute.
2. The biochemical inhibition restoration agent for a heavy metal capturing agent according to claim 1, which is characterized by comprising the following raw material components in parts by weight: 2-4 parts of anionic polyacrylamide, 3-13 parts of hydroxyapatite, 6-8 parts of zinc salt, 16-28 parts of aluminum salt, 2-4 parts of nickel salt, 2-8 parts of copper salt, 1-2 parts of calcium hypochlorite and 25-48 parts of biocompatible solute.
3. The heavy metal scavenger biochemical inhibition restoration agent according to claim 1 or 2, wherein the biocompatible solute comprises at least one of trehalose, betaine, tetrahydropyrimidine, mannitol, glycine, and sorbitol.
4. The biochemical-inhibition recovery agent for a heavy metal capturing agent according to claim 1 or 2, wherein the zinc salt comprises at least one of zinc sulfate, zinc chloride, zinc nitrate; the aluminum salt comprises at least one of aluminum chloride, aluminum sulfate and aluminum nitrate; the nickel salt comprises at least one of nickel sulfate, nickel chloride and nickel nitrate; the copper salt comprises at least one of copper sulfate, copper chloride and copper nitrate.
5. The biochemical inhibition restoration agent for a heavy metal capturing agent according to claim 1, which is characterized by comprising the following raw material components in parts by weight: 3 parts of anionic polyacrylamide, 12 parts of hydroxyapatite, 7 parts of zinc sulfate, 27 parts of aluminum chloride, 3 parts of nickel sulfate, 6 parts of copper sulfate, 2 parts of calcium hypochlorite and 40 parts of betaine.
6. The biochemical inhibition restoration agent for a heavy metal capturing agent according to claim 1, which is characterized by comprising the following raw material components in parts by weight:
1 part of anionic polyacrylamide, 2 parts of hydroxyapatite, 5 parts of zinc sulfate, 15 parts of aluminum chloride, 1 part of nickel sulfate, 1 part of copper sulfate, 0.5 part of calcium hypochlorite and 20 parts of trehalose; or alternatively
2 parts of anionic polyacrylamide, 4 parts of hydroxyapatite, 6 parts of zinc sulfate, 20 parts of aluminum chloride, 2 parts of nickel sulfate, 3 parts of copper sulfate, 1 part of calcium hypochlorite and 30 parts of betaine; or alternatively
3 parts of anionic polyacrylamide, 6 parts of hydroxyapatite, 7 parts of zinc sulfate, 25 parts of aluminum chloride, 3 parts of nickel sulfate, 4 parts of copper sulfate, 1.5 parts of calcium hypochlorite and 40 parts of mannitol; or alternatively
4 parts of anionic polyacrylamide, 8 parts of hydroxyapatite, 8 parts of zinc sulfate, 13 parts of aluminum chloride, 4 parts of nickel sulfate, 8 parts of copper sulfate, 2 parts of calcium hypochlorite and 50 parts of glycine; or alternatively
5 parts of anionic polyacrylamide, 10 parts of hydroxyapatite, 10 parts of zinc sulfate, 30 parts of aluminum chloride, 5 parts of nickel sulfate, 10 parts of copper sulfate, 3 parts of calcium hypochlorite and 28 parts of sorbitol.
7. The method for producing a biochemical inhibitor recovery agent for a heavy metal scavenger according to any one of claims 1 to 6, comprising: and uniformly mixing the raw material components of the heavy metal capturing agent biochemical inhibition restoration agent.
8. The use of the agent for restoring biochemical inhibition of a heavy metal scavenger according to any one of claims 1 to 6 for promoting restoration of biochemical inhibition of a heavy metal scavenger.
9. The use according to claim 8, wherein the method of promoting recovery of biochemical inhibition of heavy metal capture agents comprises: and adding the heavy metal capturing agent biochemical inhibition recovery agent into the activated sludge subjected to biochemical inhibition by the heavy metal capturing agent.
10. The use according to claim 8, wherein the heavy metal scavenger comprises DTC-type and/or TMT-type heavy metal scavenger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310846878.6A CN117023783A (en) | 2023-07-11 | 2023-07-11 | Biochemical inhibition recovery medicament for heavy metal capturing agent and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310846878.6A CN117023783A (en) | 2023-07-11 | 2023-07-11 | Biochemical inhibition recovery medicament for heavy metal capturing agent and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117023783A true CN117023783A (en) | 2023-11-10 |
Family
ID=88641975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310846878.6A Pending CN117023783A (en) | 2023-07-11 | 2023-07-11 | Biochemical inhibition recovery medicament for heavy metal capturing agent and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117023783A (en) |
-
2023
- 2023-07-11 CN CN202310846878.6A patent/CN117023783A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Duan et al. | Improving wastewater management using free nitrous acid (FNA) | |
| Ochoa-Herrera et al. | Toxicity of copper (II) ions to microorganisms in biological wastewater treatment systems | |
| CN108249613B (en) | Alkaline zinc-nickel alloy wastewater treatment method | |
| CN107459150B (en) | Composite bacterium particle and sewage treatment process thereof | |
| Tabassum et al. | Efficient nitrification treatment of comprehensive industrial wastewater by using Novel Mass Bio System | |
| Yang et al. | The coupling use of advanced oxidation processes and sequencing batch reactor to reduce nitrification inhibition of industry wastewater: Characterization and optimization | |
| WO2023098190A1 (en) | Treatment method for wastewater containing cyanide and oxalate | |
| CN106630082B (en) | Preparation method of polyvinyl chloride-based flocculant | |
| CN1382649A (en) | Process for treating used water difficult to degradate by catalytic internal electrolysis of iron | |
| CN112452145B (en) | Method for treating ammonia-containing waste gas | |
| CN108439646B (en) | Pretreatment method of high-concentration organic wastewater in production process of mercapto heterocyclic compounds | |
| CN111018016B (en) | Heavy metal sewage treatment agent | |
| CN100460498C (en) | Sequencing batch active sludge process for eliminating ammonia nitrogen from sewage | |
| CN115072936B (en) | Method for removing hexavalent chromium and total chromium in water by using activated sludge | |
| CN117023783A (en) | Biochemical inhibition recovery medicament for heavy metal capturing agent and preparation method and application thereof | |
| CN110697885A (en) | Biological treatment method for synchronously removing ammonia nitrogen and cupric ions in wastewater | |
| CN107777826B (en) | Advanced treatment system and method for high-nitrate wastewater | |
| CN107540091A (en) | A kind of processing method of high ammonia-nitrogen wastewater | |
| CN211734103U (en) | Copper ammonia complex effluent disposal system | |
| CN117023838A (en) | Biochemical inhibition treatment system and method for heavy metal capturing agent | |
| CN112919728A (en) | Blue algae mud pressure filtrate treatment method | |
| CN106746158B (en) | Advanced denitrification treatment method for wastewater generated in coal water slurry gasification process | |
| CN1986449A (en) | Sequencing batch active sludge process for eliminating ammonia nitrogen from sewage | |
| CN110550780A (en) | Method for treating desulfurization wastewater of thermal power plant based on pretreatment and double-membrane method | |
| CN114956316B (en) | Method for improving heavy metal impact resistance of short-cut nitrified sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |