CN108503012A - Fenton wastewater treatment process - Google Patents
Fenton wastewater treatment process Download PDFInfo
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- CN108503012A CN108503012A CN201810226393.6A CN201810226393A CN108503012A CN 108503012 A CN108503012 A CN 108503012A CN 201810226393 A CN201810226393 A CN 201810226393A CN 108503012 A CN108503012 A CN 108503012A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 41
- 230000008569 process Effects 0.000 title claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 78
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 76
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 58
- 239000002351 wastewater Substances 0.000 claims abstract description 52
- 239000000243 solution Substances 0.000 claims abstract description 50
- 239000010881 fly ash Substances 0.000 claims abstract description 46
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 43
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000010457 zeolite Substances 0.000 claims abstract description 43
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 38
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 34
- 229920005610 lignin Polymers 0.000 claims abstract description 29
- 239000000839 emulsion Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 17
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims abstract description 16
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 15
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 15
- 229920002261 Corn starch Polymers 0.000 claims abstract description 14
- 239000004927 clay Substances 0.000 claims abstract description 14
- 239000008120 corn starch Substances 0.000 claims abstract description 14
- 239000002244 precipitate Substances 0.000 claims abstract description 12
- 229910052570 clay Inorganic materials 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 31
- 229910000077 silane Inorganic materials 0.000 claims description 31
- 239000011347 resin Substances 0.000 claims description 26
- 229920005989 resin Polymers 0.000 claims description 26
- 229920000058 polyacrylate Polymers 0.000 claims description 23
- 238000002360 preparation method Methods 0.000 claims description 17
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 14
- 229940099112 cornstarch Drugs 0.000 claims description 13
- 238000005189 flocculation Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 230000016615 flocculation Effects 0.000 claims description 10
- 239000013049 sediment Substances 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 9
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 7
- 230000004520 agglutination Effects 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 6
- 239000011790 ferrous sulphate Substances 0.000 claims description 6
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 6
- 239000008236 heating water Substances 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- 238000013268 sustained release Methods 0.000 claims description 6
- 239000012730 sustained-release form Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 208000011580 syndromic disease Diseases 0.000 claims description 2
- 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 claims 1
- 240000008042 Zea mays Species 0.000 claims 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims 1
- 235000005822 corn Nutrition 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 3
- 229920002125 Sokalan® Polymers 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 230000003311 flocculating effect Effects 0.000 abstract 1
- 239000004584 polyacrylic acid Substances 0.000 abstract 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 abstract 1
- 239000002585 base Substances 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 20
- 238000010521 absorption reaction Methods 0.000 description 16
- 229910001385 heavy metal Inorganic materials 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 150000002500 ions Chemical class 0.000 description 10
- 239000002253 acid Substances 0.000 description 8
- 238000002835 absorbance Methods 0.000 description 7
- 239000010883 coal ash Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 150000002978 peroxides Chemical class 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 239000007822 coupling agent Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- -1 alcohol phenol 3-Phenoxy-benzaldehyde copper carboxylic acid Chemical class 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 239000004411 aluminium Substances 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
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 150000005837 radical ions Chemical class 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 239000002023 wood 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
-
- 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
-
- 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
- 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
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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 Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a Fenton wastewater treatment process, which comprises the following steps: adjusting the pH value of the wastewater to be treated to 3-5; adding H into waste water2O2Mixing ofMixing and stirring; FeSO is added in batches4·7H2O, FeSO is added every time4·7H2Before O, the pH value of the treated water needs to be adjusted to 3-5, and FeSO is added after each time4·7H2Stirring for 3-10 minutes after O; adjusting the pH value of the treated wastewater to 7.5-8; adding modified flocculant, flocculating, depositing, solid-liquid separating to eliminate coagulated precipitate. The raw materials of the flocculant comprise: activated carbon, ferric chloride solution, corn starch, water, sodium hydroxide solution, sodium sulfite solution, water-based polyacrylic acid emulsion, sodium carbonate, sodium silicate, clay, diatomite, lignin, fly ash, zeolite, trimethyl lignin quaternary ammonium salt and silane coupling agent KH-550. The Fenton wastewater treatment process has high efficiency and good quality.
Description
Technical field
The invention belongs to waste water treatment process, and in particular to a kind of Fenton waste water treatment process.
Background technology
1894, chemist FentonHJ had found, hydrogen peroxide (H2O2) and ferrous ion Fe2+Mixed solution have it is strong
Many organic matters, such as alcohol phenol 3-Phenoxy-benzaldehyde copper carboxylic acid and its derivative can be oxidized to simple inorganic molecules object by oxidisability
Matter, such as carbon dioxide, nitrate anion etc., oxidation effectiveness are quite thorough.Oxidation thoroughly also means that selectivity is not strong, normal
Production technology in, people always use the preferable oxidant of selectivity, can just access the organic conjunction of macromolecule of target in this way
At product, from this from the point of view of, the application range of Fenton is little.It is increasingly deep with the research of environmental protection until 1970
Enter, the presence of hardly degraded organic substance is difficult at the weight studied in nerve-wracking problem and water pollution control technology in sewage
Point.On looking back, environment scholars have found, the exhaustive oxidation characteristic of this no selection of Fenton just gives hardly degraded organic substance
Processing brings glad tidings with disposition.So far deep oxidation-Fenton treatment technology is increasingly by people's extensive concern.
A kind of Chinese patent application document " efficient water treatment technology (publication number based on Fenton's reaction：
CN101525190A) ", a kind of efficient water treatment technology based on Fenton's reaction is disclosed, is included the following steps：It will be pending useless
The pH value of water is adjusted to 3-5；H is added2O2, it is mixed；Fe-SO is added in batches4·7H2By accessing pending water pH tune before O
3-5 is saved, has added FeSO every time4·7H2It is stirred 3-10 minutes after O；The pH of treated waste water is adjusted to 7.5-8；It is added
Flocculant removes agglutination precipitate.According to waste water situation, the present invention carries out quantification dosage, solves dosage and the dirt of medicament
Mud amount；Without H2O2Residual, reduce processing residual H2O2Processing step；H is added portionwise2O2The hydroxyl generated with control system moment
The free base unit weight of base, is effectively treated high COD, organic wastewater with difficult degradation thereby..
Invention content
The object of the present invention is to provide a kind of Fenton waste water treatment process, and to solve, in Patent Application Publication, " one kind is based on
Efficient water treatment technology (the publication number of Fenton's reaction：CN101525190A) " the disclosed water treatment technology based on Fenton's reaction
Efficiency is low, ropy problem.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of Fenton waste water treatment process, includes the following steps:；
S1, the pH value of pending waste water is adjusted to 3-5；
S2, H is added in waste water2O2, it is mixed；
S3, FeSO is added in batches4·7H2O puts into FeSO every time4·7H2Before O it is required to that the pH value tune of water will be handled
3-5 is saved, has added FeSO every time4·7H2It is stirred 3-10 minutes after O；
S4, the pH value of S3 treated waste water is adjusted to 7.5-8；
S5, modified flocculant is added, through flocculation, precipitation, is separated by solid-liquid separation removing agglutination precipitate；
Wherein, H2O2Dosage be waste water in CODCrThe total amount that adds of 0.5-1.0 times of weight, ferrous sulfate meets Fe2 +With H2O2Molar ratio be 0.4-0.6, the dosage of flocculant is the 0.05% of pending waste water total volume；
Wherein, the modified flocculant, including following raw material：Activated carbon, ferric chloride solution, cornstarch, water, hydroxide
Sodium solution, sodium sulfite solution, water base polyacrylate emulsion, sodium carbonate, sodium metasilicate, clay, diatomite, lignin, flyash,
Zeolite, trimethyl lignin quaternary, silane resin acceptor kh-550；
The activated carbon, sodium carbonate, silane resin acceptor kh-550, flyash and zeolite weight ratio be (4-9)：(3-6)：
(1-3)：(6-9)：(8-12).
Further, the weight ratio of the activated carbon, sodium carbonate, silane resin acceptor kh-550, flyash and zeolite is
6.4：4.1：2.3：8.5：11.6.
Further, the modified flocculant, as unit of parts by weight, including following raw material：4-9 parts of activated carbon, chlorination
It is 3-5 parts of ferrous solution, 6-9 parts of cornstarch, 9-13 parts of water, 4-6 parts of sodium hydroxide solution, 2-6 parts of sodium sulfite solution, water base poly-
5-15 parts of acrylic emulsion, 3-6 parts of sodium carbonate, 4-8 parts of sodium metasilicate, 2-5 parts of clay, 1-5 parts of diatomite, 3-6 parts of lignin, powder
6-9 parts of coal ash, 8-12 parts of zeolite, 2-6 parts of trimethyl lignin quaternary, 1-3 parts of silane resin acceptor kh-550.
Further, the modified flocculant is prepared by following technique：It dries after activated carbon is washed, is then added
Ferric chloride solution is uniformly mixed, and in 80-100 DEG C of heating water bath 8-12h, is cooled to room temperature, and is washed, is then warming up to 250-350
DEG C calcining 4-6h, be cooled to room temperature to obtain material a；Cornstarch and water are uniformly mixed, sodium hydroxide solution tune is then added dropwise
PH to 9-10 is saved, is warming up to 40-60 DEG C, keeps the temperature 1-3h, sodium sulfite solution is then added dropwise and is uniformly mixed, is cooled to 30-40 DEG C,
10-20min is kept the temperature, water base polyacrylate emulsion is added and is uniformly mixed, sodium hydroxide solution is added dropwise and adjusts pH to 9.5-10.0, in
40-50 DEG C of isothermal reaction 3-5h, is cooled to room temperature, and is subsequently added into sodium carbonate, sodium metasilicate, clay, diatomite, lignin, fine coal
Ash, zeolite, trimethyl lignin quaternary and silane resin acceptor kh-550 are uniformly mixed, and are stirred in 50-60 DEG C of water bath with thermostatic control, cold
But to room temperature, suction filtration obtains sediment, then by drying precipitate, is cooled to room temperature to obtain modified sustained release agent.
Further, in the modified flocculant preparation process, the substance withdrawl syndrome of ferric chloride solution is 0.5-
1.5mol/L。
Further, in the modified flocculant preparation process, the mass fraction of sodium sulfite is 5-15%.
The invention has the advantages that：
(1) by the data of embodiment 1-3 and comparative example 7 as it can be seen that embodiment 1-3 uses Fenton waste water treatment process to waste water
After being handled, CODCr, BOD, turbidity, absorbance and remain peroxide acid ion numerical value be substantially less than the sweet smell that comparative example 7 uses
Waste water treatment process pause to COD after wastewater treatmentCr, BOD, turbidity, absorbance and remain peroxide acid ion numerical value；Simultaneously by reality
The data of a 1-3 are applied as it can be seen that embodiment 1 is optimum embodiment.
(2) by embodiment 1 and the data of comparative example 1-6 as it can be seen that activated carbon, sodium carbonate, silane resin acceptor kh-550, fine coal
Ash and zeolite play synergistic effect in Fenton waste water treatment process in the preparation of modified flocculant, it is useless that collaboration improves Fenton
The efficiency and quality of water treatment technology；This is：
Activated carbon and zeolite are porous structure, and hydroxyl bond is contained on surface, not only have excellent absorption property, and energy
It is combined after enough progress graft modifications with unsaturated bond, by using the absorption property of activated carbon and zeolite, in silane coupling agent
Under effect, realization is combined activated carbon and zeolite with water base polyacrylate emulsion, and during preparing modified flocculant, though
Right zeolite is not charged, but the main component of zeolite is inorganic salts, is realized to sulfurous acid using metal cation in inorganic salts
The absorption of radical ion so that the flocculant after preparation effectively adsorbs harmful inferior sulfate radical plasma in waste water, and right
Fine particle carries out adsorption-flocculation, is modified to flyash using sodium carbonate, and flyash is porous vitreum, porous carbon burl
Close, have permeability cellular tissue, have larger specific surface area, and have certain active group thus with well absorption
Property, between flyash and pollution factor by intermolecular attraction generate physical absorption, this performance by flyash specific surface
Product and porosity determine, while there is also the hydroxyls that chemical bonds are largely carried out with metallic elements such as silicon, iron, aluminium inside flyash
Base, and can realize with the pollution factor in waste water through chemical bonds, the chemisorption of ion exchange or ion pair is formed,
Flyash not only has certain neutralising capacity to acid water, but also has absorption organic pollution, suspended solid, deodorization and discoloration, goes
Removing heavy metals ion.Flyash after modification of sodium carbonate, can be effectively right due to showing upper introducing carbanion in flyash
Heavy metal element and pollution factor in water are adsorbed, realize in waste water heavy metal and after pollution factor adsorbs
It is deposited in the bottom, heavy metal in waste water and pollution factor are removed to reach so that modified flyash has excellent
Different settling property, and using fine coal gray surface active group, silane resin acceptor kh-550 grafting effect under, realize with
Water base polyacrylate emulsion in modified flocculant raw material is prepared to be combined, using the flocculation of water base polyacrylate emulsion,
It is settled after having further speeded up heavy metal and pollution factor absorption, improves removing heavy metals and pollution factor sedimentation removal
Efficiency, further improve the efficiency and quality of Fenton wastewater treatment.
(3) by the data of comparative example 8-10 as it can be seen that activated carbon, sodium carbonate, silane resin acceptor kh-550, flyash and zeolite
Weight ratio not at (4-9)：(3-6)：(1-3)：(6-9)：When in (8-12) range, using Fenton waste water treatment process to waste water
After processing, the COD of waste waterCr, BOD, turbidity, absorbance and remain peroxide acid ion numerical value differed with the numerical value of embodiment 1-3
It is very big, it is much larger than in the numerical value of embodiment 1-3, it is suitable with the numerical value of the prior art (comparative example 7).Sodium carbonate of the present invention, silane
As reinforcement system, embodiment 1-3 controls are lived when preparing modified flocculant by adding for coupling agent KH-550, flyash and zeolite
Property charcoal, sodium carbonate, silane resin acceptor kh-550, flyash and zeolite weight ratio be (4-9)：(3-6)：(1-3)：(6-9)：
(8-12) realizes active group and the excellent absorption property that activated carbon and zeolite surface are utilized in reinforcement system, in silicon
Under the action of alkane coupling agent, realization is combined activated carbon and zeolite with water base polyacrylate emulsion, while using sodium carbonate to powder
Coal ash is modified, and flocculation is modified with preparing under the grafting effect of silane coupling agent using the active group of fine coal gray surface
Water base polyacrylate emulsion is effectively combined in agent raw material, realizes the efficiency and quality for improving Fenton waste water treatment process.
Specific implementation mode
For ease of more fully understanding the present invention, it is illustrated by the following examples, these examples belong to the protection of the present invention
Range, but do not limit the scope of the invention.
In embodiment, a kind of Fenton waste water treatment process, includes the following steps:；
S1, the pH value of pending waste water is adjusted to 3-5；
S2, H is added in waste water2O2, it is mixed；
S3, FeSO is added in batches4·7H2O puts into FeSO every time4·7H2Before O it is required to that the pH value tune of water will be handled
3-5 is saved, has added FeSO every time4·7H2It is stirred 3-10 minutes after O；
S4, the pH value of S3 treated waste water is adjusted to 7.5-8；
S5, modified flocculant is added, through flocculation, precipitation, is separated by solid-liquid separation removing agglutination precipitate；
Wherein, H2O2Dosage be waste water in CODCrThe total amount that adds of 0.5-1.0 times of weight, ferrous sulfate meets Fe2 +With H2O2Molar ratio be 0.4-0.6, the dosage of flocculant is the 0.05% of pending waste water total volume；
The modified flocculant, including following raw material：4-9 parts of activated carbon, 3-5 parts of ferric chloride solution, cornstarch 6-9
Part, 9-13 parts of water, 4-6 parts of sodium hydroxide solution, 2-6 parts of sodium sulfite solution, polyacrylate emulsion 5-15 parts water base, sodium carbonate
3-6 parts, 4-8 parts of sodium metasilicate, 2-5 parts of clay, 1-5 parts of diatomite, 3-6 parts of lignin, 6-9 parts of flyash, 8-12 parts of zeolite, three
2-6 parts of methyl lignin quaternary, 1-3 parts of silane resin acceptor kh-550.
The modified flocculant is prepared by following technique：It is dried after activated carbon is washed, the amount of substance is then added
The ferric chloride solution of a concentration of 0.5-1.5mol/L is uniformly mixed, and in 80-100 DEG C of heating water bath 8-12h, is cooled to room temperature, is washed
It washs, is then warming up to 250-350 DEG C of calcining 4-6h, is cooled to room temperature to obtain material a；Cornstarch and water are uniformly mixed, so
Sodium hydroxide solution is added dropwise afterwards and adjusts pH to 9-10, is warming up to 40-60 DEG C, keeps the temperature 1-3h, it is 5- that mass fraction, which is then added dropwise,
15% sodium sulfite solution is uniformly mixed, and is cooled to 30-40 DEG C, keeps the temperature 10-20min, and it is mixed that water base polyacrylate emulsion is added
It closes uniformly, sodium hydroxide solution adjusting pH to 9.5-10.0 is added dropwise and is cooled to room temperature, then in 40-50 DEG C of isothermal reaction 3-5h
Sodium carbonate, sodium metasilicate, clay, diatomite, lignin, flyash, zeolite, trimethyl lignin quaternary and silane coupled is added
Agent KH-550 is uniformly mixed, and is stirred, is cooled to room temperature in 50-60 DEG C of water bath with thermostatic control, and suction filtration obtains sediment, then by sediment
It is dry, it is cooled to room temperature to obtain modified sustained release agent.
Embodiment 1
A kind of Fenton waste water treatment process, includes the following steps:；
S1, the pH value of pending waste water is adjusted to 3.4；
S2, H is added in waste water2O2, it is mixed；
S3, FeSO is added in batches4·7H2O puts into FeSO every time4·7H2Before O it is required to that the pH value tune of water will be handled
It saves to 4.3, has added FeSO every time4·7H2It is stirred 6 minutes after O；
S4, the pH value of S3 treated waste water is adjusted to 7.8；
S5, modified flocculant is added, through flocculation, precipitation, is separated by solid-liquid separation removing agglutination precipitate；
Wherein, H2O2Dosage be waste water in CODCrThe total amount that adds of 0.8 times of weight, ferrous sulfate meets Fe2+With
H2O2Molar ratio be 0.43, the dosage of flocculant is the 0.05% of pending waste water total volume；
The modified flocculant, including following raw material：6.4 parts of activated carbon, 3.2 parts of ferric chloride solution, cornstarch 8.7
Part, 11.2 parts of water, 5.3 parts of sodium hydroxide solution, 4.8 parts of sodium sulfite solution, 13.6 parts of water base polyacrylate emulsion, sodium carbonate
4.1 parts, 5.7 parts of sodium metasilicate, 4.1 parts of clay, 3.6 parts of diatomite, 5.2 parts of lignin, 8.5 parts of flyash, 11.6 parts of zeolite, three
2.3 parts of methyl lignin quaternary 4.6, silane resin acceptor kh-550.
The modified flocculant is prepared by following technique：It is dried after activated carbon is washed, the amount of substance is then added
The ferric chloride solution of a concentration of 0.8mol/L is uniformly mixed, and in 94 DEG C of heating water bath 11.3h, is cooled to room temperature, and is washed, is then risen
Temperature is cooled to room temperature to obtain material a to 289 DEG C of calcining 5.2h；Cornstarch and water are uniformly mixed, sodium hydroxide is then added dropwise
Solution adjusts pH to 9.3, is warming up to 43 DEG C, keeps the temperature 1.5h, and it is mixed that the sodium sulfite solution that mass fraction is 13.6% is then added dropwise
It closes uniformly, is cooled to 32 DEG C, keep the temperature 14.6min, water base polyacrylate emulsion is added and is uniformly mixed, sodium hydroxide solution tune is added dropwise
Section pH to 9.8 is cooled to room temperature in 47 DEG C of isothermal reaction 4.2h, is subsequently added into sodium carbonate, sodium metasilicate, clay, diatomite, wood
Quality, flyash, zeolite, trimethyl lignin quaternary and silane resin acceptor kh-550 are uniformly mixed, in 56 DEG C of waters bath with thermostatic control
Stirring, is cooled to room temperature, and suction filtration obtains sediment, then by drying precipitate, is cooled to room temperature to obtain modified sustained release agent.
Embodiment 2
A kind of Fenton waste water treatment process, includes the following steps:；
S1, the pH value of pending waste water is adjusted to 3；
S2, H is added in waste water2O2, it is mixed；
S3, FeSO is added in batches4·7H2O puts into FeSO every time4·7H2Before O it is required to that the pH value tune of water will be handled
It saves to 5, has added FeSO every time4·7H2It is stirred 3 minutes after O；
S4, the pH value of S3 treated waste water is adjusted to 8；
S5, modified flocculant is added, through flocculation, precipitation, is separated by solid-liquid separation removing agglutination precipitate；
Wherein, H2O2Dosage be waste water in CODCrThe total amount that adds of 0.5 times of weight, ferrous sulfate meets Fe2+With
H2O2Molar ratio be 0.6, the dosage of flocculant is the 0.05% of pending waste water total volume；
The modified flocculant, including following raw material：4 parts of activated carbon, 5 parts of ferric chloride solution, 6 parts of cornstarch, water 13
Part, is glued 4 parts of sodium hydroxide solution, 6 parts of sodium sulfite solution, 5 parts of water base polyacrylate emulsion, 6 parts of sodium carbonate, 4 parts of sodium metasilicate
5 parts of soil, 1 part of diatomite, 6 parts of lignin, 6 parts of flyash, 12 parts of zeolite, 2 parts of trimethyl lignin quaternary, silane coupling agent
KH-5503 parts.
The modified flocculant is prepared by following technique：It is dried after activated carbon is washed, the amount of substance is then added
The ferric chloride solution of a concentration of 0.5mol/L is uniformly mixed, and in 100 DEG C of heating water bath 8h, is cooled to room temperature, and is washed, is then heated up
To 350 DEG C of calcining 4h, it is cooled to room temperature to obtain material a；Cornstarch and water are uniformly mixed, sodium hydroxide solution is then added dropwise
PH to 10 is adjusted, is warming up to 40 DEG C, keeps the temperature 3h, the sodium sulfite solution that mass fraction is 5% is then added dropwise and is uniformly mixed, cooling
To 40 DEG C, 10min is kept the temperature, water base polyacrylate emulsion is added and is uniformly mixed, sodium hydroxide solution is added dropwise and adjusts pH to 10.0, in
40 DEG C of isothermal reaction 5h, are cooled to room temperature, and are subsequently added into sodium carbonate, sodium metasilicate, clay, diatomite, lignin, flyash, boiling
Stone, trimethyl lignin quaternary and silane resin acceptor kh-550 are uniformly mixed, and are stirred in 50 DEG C of waters bath with thermostatic control, are cooled to room
Temperature, suction filtration obtains sediment, then by drying precipitate, is cooled to room temperature to obtain modified sustained release agent.
Embodiment 3
A kind of Fenton waste water treatment process, includes the following steps:；
S1, the pH value of pending waste water is adjusted to 5；
S2, H is added in waste water2O2, it is mixed；
S3, FeSO is added in batches4·7H2O puts into FeSO every time4·7H2Before O it is required to that the pH value tune of water will be handled
It saves to 3, has added FeSO every time4·7H2It is stirred 10 minutes after O；
S4, the pH value of S3 treated waste water is adjusted to 7.5；
S5, modified flocculant is added, through flocculation, precipitation, is separated by solid-liquid separation removing agglutination precipitate；
Wherein, H2O2Dosage be waste water in CODCrThe total amount that adds of 1.0 times of weight, ferrous sulfate meets Fe2+With
H2O2Molar ratio be 0.4, the dosage of flocculant is the 0.05% of pending waste water total volume；
The modified flocculant, including following raw material：9 parts of activated carbon, 3 parts of ferric chloride solution, 9 parts of cornstarch, water 9
Part, 6 parts of sodium hydroxide solution, 2 parts of sodium sulfite solution, 15 parts of water base polyacrylate emulsion, 3 parts of sodium carbonate, 8 parts of sodium metasilicate,
It is 2 parts of clay, 5 parts of diatomite, 3 parts of lignin, 9 parts of flyash, 8 parts of zeolite, 6 parts of trimethyl lignin quaternary, silane coupled
KH-5501 parts of agent.
The modified flocculant is prepared by following technique：It is dried after activated carbon is washed, the amount of substance is then added
The ferric chloride solution of a concentration of 1.5mol/L is uniformly mixed, and in 80 DEG C of heating water bath 12h, is cooled to room temperature, and is washed, is then heated up
To 250 DEG C of calcining 6h, it is cooled to room temperature to obtain material a；Cornstarch and water are uniformly mixed, sodium hydroxide solution is then added dropwise
PH to 9 is adjusted, is warming up to 60 DEG C, keeps the temperature 1h, the sodium sulfite solution that mass fraction is 15% is then added dropwise and is uniformly mixed, cooling
To 30 DEG C, 20min is kept the temperature, water base polyacrylate emulsion is added and is uniformly mixed, sodium hydroxide solution is added dropwise and adjusts pH to 9.5, in
50 DEG C of isothermal reaction 3h, are cooled to room temperature, and are subsequently added into sodium carbonate, sodium metasilicate, clay, diatomite, lignin, flyash, boiling
Stone, trimethyl lignin quaternary and silane resin acceptor kh-550 are uniformly mixed, and are stirred in 60 DEG C of waters bath with thermostatic control, are cooled to room
Temperature, suction filtration obtains sediment, then by drying precipitate, is cooled to room temperature to obtain modified sustained release agent.
Comparative example 1
It is essentially identical with the preparation process of embodiment 1, have only unlike in Fenton waste water treatment process, modified flocculant
Raw material in lack activated carbon, sodium carbonate, silane resin acceptor kh-550, flyash and zeolite.
Comparative example 2
It is essentially identical with the preparation process of embodiment 1, have only unlike in Fenton waste water treatment process, modified flocculant
Raw material in lack activated carbon.
Comparative example 3
It is essentially identical with the preparation process of embodiment 1, have only unlike in Fenton waste water treatment process, modified flocculant
Raw material in lack sodium carbonate.
Comparative example 4
It is essentially identical with the preparation process of embodiment 1, have only unlike in Fenton waste water treatment process, modified flocculant
Raw material in lack silane resin acceptor kh-550.
Comparative example 5
It is essentially identical with the preparation process of embodiment 1, have only unlike in Fenton waste water treatment process, modified flocculant
Raw material in lack flyash.
Comparative example 6
It is essentially identical with the preparation process of embodiment 1, have only unlike in Fenton waste water treatment process, modified flocculant
Raw material in lack zeolite.
Comparative example 7
Using a kind of Chinese patent application document " efficient water treatment technology (publication number based on Fenton's reaction：
CN101525190A the water treatment process method in) " described in specific embodiment 1-4.
Comparative example 8
It is essentially identical with the preparation process of embodiment 1, have only unlike in Fenton waste water treatment process, modified flocculant
Raw material in activated carbon be 3 parts, sodium carbonate is 7 parts, silane resin acceptor kh-550 is 0.8 part, flyash is 12 parts, zeolite 6
Part.
Comparative example 9
It is essentially identical with the preparation process of embodiment 1, have only unlike in Fenton waste water treatment process, modified flocculant
Raw material in activated carbon be 12 parts, sodium carbonate is 2 parts, silane resin acceptor kh-550 is 5 parts, flyash is 4 parts, zeolite 14
Part.
Comparative example 10
It is essentially identical with the preparation process of embodiment 1, have only unlike in Fenton waste water treatment process, modified flocculant
Raw material in activated carbon be 11 parts, sodium carbonate is 1.5 parts, silane resin acceptor kh-550 is 4.6 parts, flyash is 5.7 parts, zeolite
It is 13.6 parts.
Waste water is handled using the Fenton waste water treatment process of embodiment 1-3 and comparative example 1-10, test processes mistake
The COD of waterCr, BOD, absorbance etc., the results are shown in table below.
As seen from the above table：(1) by the data of embodiment 1-3 and comparative example 7 as it can be seen that embodiment 1-3 uses Fenton waste water
After science and engineering skill handles waste water, CODCr, BOD, turbidity, absorbance and remain peroxide acid ion numerical value be substantially less than compare
The Fenton waste water treatment process that example 7 uses is to COD after wastewater treatmentCr, BOD, turbidity, absorbance and remain peroxide acid ion number
Value；Simultaneously by the data of embodiment 1-3 as it can be seen that embodiment 1 is optimum embodiment.
(2) by embodiment 1 and the data of comparative example 1-6 as it can be seen that activated carbon, sodium carbonate, silane resin acceptor kh-550, fine coal
Ash and zeolite play synergistic effect in Fenton waste water treatment process in the preparation of modified flocculant, it is useless that collaboration improves Fenton
The efficiency and quality of water treatment technology；This is：
Activated carbon and zeolite are porous structure, and hydroxyl bond is contained on surface, not only have excellent absorption property, and energy
It is combined after enough progress graft modifications with unsaturated bond, by using the absorption property of activated carbon and zeolite, in silane coupling agent
Under effect, realization is combined activated carbon and zeolite with water base polyacrylate emulsion, and during preparing modified flocculant, though
Right zeolite is not charged, but the main component of zeolite is inorganic salts, is realized to sulfurous acid using metal cation in inorganic salts
The absorption of radical ion so that the flocculant after preparation effectively adsorbs harmful inferior sulfate radical plasma in waste water, and right
Fine particle carries out adsorption-flocculation, is modified to flyash using sodium carbonate, and flyash is porous vitreum, porous carbon burl
Close, have permeability cellular tissue, have larger specific surface area, and have certain active group thus with well absorption
Property, between flyash and pollution factor by intermolecular attraction generate physical absorption, this performance by flyash specific surface
Product and porosity determine, while there is also the hydroxyls that chemical bonds are largely carried out with metallic elements such as silicon, iron, aluminium inside flyash
Base, and can realize with the pollution factor in waste water through chemical bonds, the chemisorption of ion exchange or ion pair is formed,
Flyash not only has certain neutralising capacity to acid water, but also has absorption organic pollution, suspended solid, deodorization and discoloration, goes
Removing heavy metals ion.Flyash after modification of sodium carbonate, can be effectively right due to showing upper introducing carbanion in flyash
Heavy metal element and pollution factor in water are adsorbed, realize in waste water heavy metal and after pollution factor adsorbs
It is deposited in the bottom, heavy metal in waste water and pollution factor are removed to reach so that modified flyash has excellent
Different settling property, and using fine coal gray surface active group, silane resin acceptor kh-550 grafting effect under, realize with
Water base polyacrylate emulsion in modified flocculant raw material is prepared to be combined, using the flocculation of water base polyacrylate emulsion,
It is settled after having further speeded up heavy metal and pollution factor absorption, improves removing heavy metals and pollution factor sedimentation removal
Efficiency, further improve the efficiency and quality of Fenton wastewater treatment.
(3) by the data of comparative example 8-10 as it can be seen that activated carbon, sodium carbonate, silane resin acceptor kh-550, flyash and zeolite
Weight ratio not at (4-9)：(3-6)：(1-3)：(6-9)：When in (8-12) range, using Fenton waste water treatment process to waste water
After processing, the COD of waste waterCr, BOD, turbidity, absorbance and remain peroxide acid ion numerical value differed with the numerical value of embodiment 1-3
It is very big, it is much larger than in the numerical value of embodiment 1-3, it is suitable with the numerical value of the prior art (comparative example 7).Sodium carbonate of the present invention, silane
As reinforcement system, embodiment 1-3 controls are lived when preparing modified flocculant by adding for coupling agent KH-550, flyash and zeolite
Property charcoal, sodium carbonate, silane resin acceptor kh-550, flyash and zeolite weight ratio be (4-9)：(3-6)：(1-3)：(6-9)：
(8-12) realizes active group and the excellent absorption property that activated carbon and zeolite surface are utilized in reinforcement system, in silicon
Under the action of alkane coupling agent, realization is combined activated carbon and zeolite with water base polyacrylate emulsion, while using sodium carbonate to powder
Coal ash is modified, and flocculation is modified with preparing under the grafting effect of silane coupling agent using the active group of fine coal gray surface
Water base polyacrylate emulsion is effectively combined in agent raw material, realizes the efficiency and quality for improving Fenton waste water treatment process.
The above content is it cannot be assumed that present invention specific implementation is confined to these explanations, for the technical field of the invention
Those of ordinary skill for, under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all answers
When being considered as belonging to present invention scope of patent protection determined by the appended claims.
Claims (6)
1. a kind of Fenton waste water treatment process, which is characterized in that include the following steps:；
S1, the pH value of pending waste water is adjusted to 3-5；
S2, H is added in waste water2O2, it is mixed；
S3, FeSO is added in batches4·7H2O puts into FeSO every time4·7H2It is required to arrive the pH value adjusting for handling water before O
3-5 has added FeSO every time4·7H2It is stirred 3-10 minutes after O；
S4, the pH value of S3 treated waste water is adjusted to 7.5-8；
S5, modified flocculant is added, through flocculation, precipitation, is separated by solid-liquid separation removing agglutination precipitate；
Wherein, H2O2Dosage be waste water in CODCrThe total amount that adds of 0.5-1.0 times of weight, ferrous sulfate meets Fe2+With
H2O2Molar ratio be 0.4-0.6, the dosage of flocculant is the 0.05% of pending waste water total volume；
Wherein, the modified flocculant, including following raw material：Activated carbon, ferric chloride solution, cornstarch, water, sodium hydroxide are molten
Liquid, sodium sulfite solution, water base polyacrylate emulsion, sodium carbonate, sodium metasilicate, clay, diatomite, lignin, flyash, boiling
Stone, trimethyl lignin quaternary, silane resin acceptor kh-550；
The activated carbon, sodium carbonate, silane resin acceptor kh-550, flyash and zeolite weight ratio be (4-9)：(3-6)：(1-
3)：(6-9)：(8-12).
2. Fenton waste water treatment process according to claim 1, which is characterized in that the activated carbon, sodium carbonate, silane are even
The weight ratio for joining agent KH-550, flyash and zeolite is 6.4：4.1：2.3：8.5：11.6.
3. Fenton waste water treatment process according to claim 1, which is characterized in that the modified flocculant, with parts by weight
For unit, including following raw material：4-9 parts of activated carbon, 3-5 parts of ferric chloride solution, 6-9 parts of cornstarch, 9-13 parts of water, hydroxide
4-6 parts of sodium solution, 2-6 parts of sodium sulfite solution, polyacrylate emulsion 5-15 parts water base, 3-6 parts of sodium carbonate, 4-8 parts of sodium metasilicate,
2-5 parts of clay, 1-5 parts of diatomite, 3-6 parts of lignin, 6-9 parts of flyash, 8-12 parts of zeolite, trimethyl lignin quaternary 2-
6 parts, 1-3 parts of silane resin acceptor kh-550.
4. Fenton waste water treatment process according to claim 1, which is characterized in that the modified flocculant presses following technique
It is prepared：It is dried after activated carbon is washed, ferric chloride solution is then added and is uniformly mixed, in 80-100 DEG C of heating water bath 8-
12h is cooled to room temperature, washing, is then warming up to 250-350 DEG C of calcining 4-6h, is cooled to room temperature to obtain material a；Corn is formed sediment
Powder and water are uniformly mixed, and sodium hydroxide solution is then added dropwise and adjusts pH to 9-10, is warming up to 40-60 DEG C, keeps the temperature 1-3h, then drips
Add sodium sulfite solution to be uniformly mixed, be cooled to 30-40 DEG C, keep the temperature 10-20min, it is equal that water base polyacrylate emulsion mixing is added
It is even, sodium hydroxide solution adjusting pH to 9.5-10.0 is added dropwise and is cooled to room temperature, is subsequently added into 40-50 DEG C of isothermal reaction 3-5h
Sodium carbonate, sodium metasilicate, clay, diatomite, lignin, flyash, zeolite, trimethyl lignin quaternary and silane coupling agent
KH-550 is uniformly mixed, and is stirred, is cooled to room temperature in 50-60 DEG C of water bath with thermostatic control, and suction filtration obtains sediment, then does sediment
It is dry, it is cooled to room temperature to obtain modified sustained release agent.
5. Fenton waste water treatment process according to claim 4, which is characterized in that the modified flocculant preparation process
In, the substance withdrawl syndrome of ferric chloride solution is 0.5-1.5mol/L.
6. Fenton waste water treatment process according to claim 4, which is characterized in that the modified flocculant preparation process
In, the mass fraction of sodium sulfite is 5-15%.
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| CN114702114A (en) * | 2022-04-12 | 2022-07-05 | 江西建衡环保科技有限公司 | Aluminum ferric sulfate water purifying agent and preparation process thereof |
| CN115477376A (en) * | 2022-10-31 | 2022-12-16 | 上海高森水处理有限公司 | Dechlorination treatment agent for high-hardness water and preparation method thereof |
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