CN112090391A - Dephosphorization water purifying agent and preparation method thereof - Google Patents
Dephosphorization water purifying agent and preparation method thereof Download PDFInfo
- Publication number
- CN112090391A CN112090391A CN202010894128.2A CN202010894128A CN112090391A CN 112090391 A CN112090391 A CN 112090391A CN 202010894128 A CN202010894128 A CN 202010894128A CN 112090391 A CN112090391 A CN 112090391A
- Authority
- CN
- China
- Prior art keywords
- solution
- purifying agent
- water purifying
- heating
- sodium alginate
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000012629 purifying agent Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 48
- 239000000835 fiber Substances 0.000 claims abstract description 45
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000000661 sodium alginate Substances 0.000 claims abstract description 39
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 39
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 39
- 239000010802 sludge Substances 0.000 claims abstract description 32
- 239000011258 core-shell material Substances 0.000 claims abstract description 29
- 239000011148 porous material Substances 0.000 claims abstract description 29
- 239000002905 metal composite material Substances 0.000 claims abstract description 25
- 239000004005 microsphere Substances 0.000 claims abstract description 25
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 15
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 14
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 14
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 13
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims abstract description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011204 carbon fibre-reinforced silicon carbide Substances 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000000151 deposition Methods 0.000 claims abstract description 4
- 238000011068 loading method Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 91
- 239000000243 solution Substances 0.000 claims description 66
- 238000003756 stirring Methods 0.000 claims description 51
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 49
- 229910052698 phosphorus Inorganic materials 0.000 claims description 49
- 239000011574 phosphorus Substances 0.000 claims description 49
- 238000004321 preservation Methods 0.000 claims description 36
- 238000009987 spinning Methods 0.000 claims description 33
- 239000010410 layer Substances 0.000 claims description 31
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 26
- 239000008367 deionised water Substances 0.000 claims description 21
- 229910021641 deionized water Inorganic materials 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- 238000001035 drying Methods 0.000 claims description 19
- 239000011259 mixed solution Substances 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 14
- 238000001694 spray drying Methods 0.000 claims description 14
- 238000009210 therapy by ultrasound Methods 0.000 claims description 14
- 239000010936 titanium Substances 0.000 claims description 14
- 229910052719 titanium Inorganic materials 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 12
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 claims description 9
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 9
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 claims description 9
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 9
- 239000004793 Polystyrene Substances 0.000 claims description 9
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 9
- 229920003257 polycarbosilane Polymers 0.000 claims description 9
- 229920002223 polystyrene Polymers 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000012792 core layer Substances 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000010041 electrostatic spinning Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 7
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 238000001523 electrospinning Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 description 12
- 239000010865 sewage Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical group [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 3
- 238000010170 biological method Methods 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- WYWFMUBFNXLFJK-UHFFFAOYSA-N [Mo].[Sb] Chemical compound [Mo].[Sb] WYWFMUBFNXLFJK-UHFFFAOYSA-N 0.000 description 1
- JAQXDZTWVWLKGC-UHFFFAOYSA-N [O-2].[Al+3].[Fe+2] Chemical compound [O-2].[Al+3].[Fe+2] JAQXDZTWVWLKGC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0222—Compounds of Mn, Re
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
- B01J20/0229—Compounds of Fe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0251—Compounds of Si, Ge, Sn, Pb
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0288—Halides of compounds other than those provided for in B01J20/046
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0296—Nitrates of compounds other than those provided for in B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
-
- 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
Abstract
The invention discloses a dephosphorization water purifying agent, which comprises a composite core-shell fiber with a secondary microsphere structure layer, sludge ceramsite, polyacrylamide, polyaluminium sulfate and sodium alginate gel modified metal composite porous material; the composite core-shell fiber with the secondary microsphere structure layer is formed by depositing a porous nano titanium oxide particle coating on the surface of a C/SiC composite fiber with a core-shell structure; the sodium alginate gel modified metal composite porous material is prepared by taking sodium alginate gel as a carrier and loading manganese nitrate and ferric chloride as active components. The invention also discloses a preparation method of the dephosphorization water purifying agent. The dephosphorization water purifying agent provided by the invention has the advantages of high adsorption capacity, no secondary pollution to water, simple preparation and low cost.
Description
The technical field is as follows:
the invention relates to the field of wastewater treatment, and particularly relates to a phosphorus removal water purifying agent and a preparation method thereof.
Background art:
water is the most valuable natural resource in human life, so once the water resource is polluted, people drinking the polluted water will be ill and even die. The main reasons for causing water pollution are rural sewage, domestic sewage, urban industrial sewage and the like. In addition, water eutrophication has become a common problem in most lake water in China, and the water eutrophication not only harms the growth of aquatic organisms in water, but also affects human health. The reason for this problem is that a large amount of municipal sewage rich in nutrient elements such as nitrogen and phosphorus is discharged into the water body without being treated or without being treated completely. The research shows that: compared with nitrogen, phosphorus is a limiting factor for eutrophication of water bodies, and can stimulate the growth of algae when P in the water bodies is more than 0.01 mg/L. At present, the concentration of phosphorus element in the effluent of most municipal sewage treatment plants is higher, and some of the effluent can not even reach the discharge standard.
At present, biological methods and chemical methods are commonly used as phosphorus removal processes in municipal sewage treatment plants. The biological method is to remove phosphorus element from sewage by utilizing the characteristics of anaerobic phosphorus release and aerobic phosphorus absorption of phosphorus accumulating bacteria. However, the denitrifying bacteria and the phosphorus accumulating bacteria are different in carbon source, sludge age and growth environment, and the conventional municipal sewage treatment plant process needs to simultaneously consider denitrification and dephosphorization, so that the concentration of TP in effluent is difficult to be lower than 1mg/L, and an advanced treatment enhanced dephosphorization process is required to be supplemented. Much work has been done and actual engineering has been carried out in many countries around the world and has been promoted in some economically developed countries such as the united states. The deep phosphorus removal technology is also divided into a biological method and a chemical method, wherein the cost for strengthening the biological phosphorus removal is high, so that the deep phosphorus removal is mostly carried out by adopting the chemical method in the current sewage treatment plants, namely, a chemical phosphorus removal agent is added to carry out chemical reaction with phosphorus in a water body to generate a precipitate, and the aim of removing the phosphorus is achieved through solid-liquid separation.
The patent CN200410062964.5 discloses a process for removing nitrogen and phosphorus by using the traditional sewage treatment process, namely, chemical phosphorus removal agents are added at the tail end of a grit chamber or the water outlet of a primary sedimentation tank or the aeration section of an aeration tank and the outlet thereof, and 30-60% of activated sludge and part of residual sludge in a secondary sedimentation tank are refluxed to the primary sedimentation tank at the same time, so that the traditional sewage treatment process has the biological-chemical synergic phosphorus removal function; meanwhile, an aeration zeolite biofilter is connected in series at the tail end of the secondary sedimentation tank, ammonia nitrogen in the effluent of the secondary sedimentation tank is removed by utilizing the physical adsorption and biological action of zeolite, and the zeolite is kept at a stable adsorption capacity through chemical-biological synergistic regeneration. The chemical phosphorus removal agent is aluminum sulfate, ferrous sulfate or a mixed salt of the aluminum sulfate and the ferrous sulfate. The patent CN201310196388.2 discloses a composite phosphorus removal agent for sewage treatment and a preparation method thereof, the invention places aluminum processing waste in acid liquor, and the aluminum processing waste is stirred and reacted under normal pressure, and the temperature is controlled to be 90-100 ℃; after reacting for two hours, adding ferric trichloride, stirring and then standing for polymerization; extracting the supernatant in a compound pool to prepare an iron aluminum oxide sol solution, wherein the alkalization degree is controlled to be 30-60%; when the temperature of the alumina iron sol solution is reduced to below 40 ℃, adding a quaternary ammonium salt organic high molecular compound according to the proportion of 0.2-5%, stirring, adding water and adjusting the density to obtain the product. The prior art can know that the existing phosphorus removing agent is mainly products such as polyaluminium chloride, polyferric sulfate, ferric chloride, aluminum sulfate and the like, the dosage is large when the phosphorus removing agent is used for removing phosphorus from wastewater, the phosphorus removing effect is poor, the phosphorus removing cost is high, and the popularization and the application of a chemical phosphorus removing technology are seriously restricted.
The invention content is as follows:
the invention aims to solve the technical problem of providing a dephosphorization water purifying agent and a preparation method thereof aiming at the defects of the prior art; the composite core-shell fiber with the secondary microsphere structure layer, the sludge ceramsite, the sodium alginate gel modified metal composite porous material, the polyaluminium sulfate and the polyacrylamide are used as the composite water purifying agent, so that the composite water purifying agent has the advantages of high adsorption capacity, no secondary pollution to water, simplicity in preparation and low cost.
In order to solve the technical problems, the invention adopts the following technical scheme:
a dephosphorization water purifying agent comprises a composite core-shell fiber with a secondary microsphere structure layer, sludge ceramsite, polyacrylamide, polyaluminium sulfate and sodium alginate gel modified metal composite porous material; the composite core-shell fiber with the secondary microsphere structure layer is formed by depositing a porous nano titanium oxide particle coating on the surface of a C/SiC composite fiber with a core-shell structure; the sodium alginate gel modified metal composite porous material is prepared by taking sodium alginate gel as a carrier and loading manganese nitrate and ferric chloride as active components.
Preferably, in the technical scheme, the sludge ceramsite is prepared from sludge and sodium bicarbonate in a mass ratio of (5: (1-2) the specific surface area of the powder is 83.5-85.5m2/g。
Preferably, the temperature of the preheating treatment is 120 ℃, and the time of the preheating treatment is 30 min.
Preferably, the sintering conditions are staged sintering; firstly heating to 280 ℃ at a heating rate of 1 ℃/min, carrying out heat preservation treatment for 10min, then heating to 450 ℃ at a heating rate of 4 ℃/min, carrying out heat preservation treatment for 10min, and finally heating to 600 ℃ at a heating rate of 6 ℃/min, carrying out heat preservation treatment for 40 min.
Preferably, the components are 5-10 parts by weight of composite core-shell fiber with a secondary microsphere structure layer, 10-20 parts by weight of sludge ceramsite, 7-15 parts by weight of polyacrylamide, 8-13 parts by weight of polyaluminium sulfate and 3-7 parts by weight of sodium alginate gel modified metal composite porous material.
In order to better solve the technical problems, the invention adopts the following technical scheme:
a preparation method of a dephosphorization water purifying agent comprises the following steps:
(1) dissolving octadecylamine in dimethylacetamide, stirring and mixing, adding pyromellitic dianhydride and phthalic anhydride, and stirring at 80-90 ℃ for 2-4h to prepare a spinning solution A; dissolving polystyrene particles and polycarbosilane in N, N-dimethylformamide to prepare a solution B;
(2) taking the solution A as a shell layer spinning solution and the solution B as a core layer spinning solution, and preparing the composite fiber by adopting a coaxial electrostatic spinning method; dissolving 1mol of tetrabutyl titanate in 50ml of absolute ethyl alcohol, dropwise adding 0.35mol of 1mol/L hydrochloric acid solution and 2mol of deionized water, and strongly stirring to prepare titanium sol; adding 4-5g of the prepared composite fiber into titanium sol, carrying out ultrasonic treatment for 10-30min at 500W, then heating to 60-80 ℃, continuing ultrasonic treatment for 1-2h, cooling to room temperature, filtering, drying the solid, and then placing in a muffle furnace for sintering treatment to obtain the composite core-shell fiber with a secondary microsphere structure layer;
(3) dissolving 1g of sodium alginate in 80ml of deionized water, then adding (0.1-0.3) g of manganese nitrate and (0.1-0.15) g of ferric chloride, and stirring and dispersing to obtain a mixed solution; slowly dripping the prepared mixed solution into a calcium chloride solution with the mass concentration of 10%, stirring at 40 ℃ for 1-2h, and then carrying out spray drying to prepare the sodium alginate gel modified metal composite porous material; during spray drying, keeping the temperature of an air inlet at 150-180 ℃ and the temperature of an air outlet at 70-90 ℃;
(4) mixing and stirring polyacrylamide, polyaluminium sulfate and 100ml of deionized water, then adding sludge ceramsite, composite core-shell fiber with a secondary microsphere structure layer and a sodium alginate gel modified metal composite porous material, continuously stirring and mixing, and then drying to obtain the phosphorus removal water purifying agent.
Preferably, in the step (1), the dosage ratio of the octadecylamine, the dimethylacetamide, the pyromellitic dianhydride and the phthalic anhydride is 10g (80-100) ml: (10-12) g: (15-20) g.
Preferably, in the step (1), the usage ratio of the polystyrene particles, the polycarbosilane and the N, N-dimethylformamide is 1 g: (0.8-1) g: 50 ml.
Preferably, in the step (2), the coaxial electrospinning process specifically includes: spinning voltage is 10-20kV, the distance between a spray head and a collector is 10-20cm, and the flow ratio of the solution A to the solution B is (1-5): 1.
Preferably, in the step (2), the sintering process includes: firstly heating to 500 ℃ at the heating rate of 5 ℃/min, preserving heat for 1h, then heating to 800 ℃ at the heating rate of 10 ℃/min, preserving heat for 1h, and finally heating to 1200 ℃ at the heating rate of 5 ℃/min, preserving heat for 2 h.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the dephosphorization water purifying agent provided by the invention comprises a composite core-shell fiber with a secondary microsphere structure layer, sludge ceramsite, polyacrylamide, polyaluminium sulfate and sodium alginate gel modified metal composite porous material; the composite core-shell fiber with the secondary microsphere structure layer is formed by depositing a porous nano titanium oxide particle coating on the surface of a C/SiC composite fiber with a core-shell structure; the C/SiC composite fiber has good mechanical property and a good pore structure, the porous nano titanium oxide has good dispersibility on the surface, and the pores of the nano titanium oxide are not communicated with the pores of the shell layer and the core layer of the composite fiber, so that a larger adsorption space can be provided; the sodium alginate gel modified metal composite porous material is prepared by taking sodium alginate gel as a carrier and loading manganese nitrate and ferric chloride as active components; manganese nitrate and ferric chloride are stably dispersed in a three-dimensional network structure of the sodium alginate gel, so that the sodium alginate gel has more adsorption sites, and reactive functional groups such as hydroxyl, carboxyl and the like in the sodium alginate gel can effectively remove phosphorus in the wastewater; the sludge ceramsite contains a large amount of Si and Al active points, and has good adsorption and condensation effects on phosphorus in wastewater. The dephosphorization water purifying agent provided by the invention has strong adsorption capacity, more pores and secondary pollution to water.
The specific implementation mode is as follows:
the present invention is further illustrated by the following examples, which are provided for the purpose of illustration only and are not intended to be limiting.
Example 1
(1) Dissolving 10g of octadecylamine in 80ml of dimethylacetamide, stirring and mixing, adding 10g of pyromellitic dianhydride and 15g of phthalic anhydride, and stirring at 80 ℃ for 2 hours to prepare a spinning solution A; 1g of polystyrene particles and 0.8g of polycarbosilane are dissolved in 50ml of N, N-dimethylformamide to prepare a solution B;
(2) taking the solution A as a shell layer spinning solution and the solution B as a core layer spinning solution, and preparing the composite fiber by adopting a coaxial electrostatic spinning method; and (3) keeping the spinning voltage at 10kV in the spinning process, keeping the distance between a spray head and a collector at 10cm, and enabling the flow ratio of the solution A to the solution B to be 1: 1; dissolving 1mol of tetrabutyl titanate in 50ml of absolute ethyl alcohol, dropwise adding 0.35mol of 1mol/L hydrochloric acid solution and 2mol of deionized water, and strongly stirring to prepare titanium sol; adding 4g of the prepared composite fiber into titanium sol, carrying out ultrasonic treatment for 10min at 500W, then heating to 60 ℃, continuing ultrasonic treatment for 1h, cooling to room temperature, filtering, drying the solid, then placing the solid in a muffle furnace, firstly heating to 500 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 1h, then heating to 800 ℃ at the heating rate of 10 ℃/min, carrying out heat preservation for 1h, finally heating to 1200 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 2h, and preparing the composite core-shell fiber with the secondary microsphere structure layer;
(3) dissolving 1g of sodium alginate in 80ml of deionized water, then adding 0.1g of manganese nitrate and 0.1g of ferric chloride, and stirring and dispersing to obtain a mixed solution; slowly dripping the prepared mixed solution into a calcium chloride solution with the mass concentration of 10%, stirring at 40 ℃ for 1h, and then carrying out spray drying to prepare the sodium alginate gel modified metal composite porous material; during spray drying, keeping the temperature of an air inlet at 150 ℃ and the temperature of an air outlet at 70 ℃;
(4) the sludge and the sodium bicarbonate are mixed according to a mass ratio of 5: 1, mixing, granulating and drying, preheating at 120 ℃ for 30min, then placing in a resistance furnace, firstly heating to 280 ℃ at the heating rate of 1 ℃/min, carrying out heat preservation treatment for 10min, then heating to 450 ℃ at the heating rate of 4 ℃/min, carrying out heat preservation treatment for 10min, finally heating to 600 ℃ at the heating rate of 6 ℃/min, and carrying out heat preservation treatment for 40min to obtain sludge ceramsite;
(5) mixing and stirring 7 parts by weight of polyacrylamide, 8 parts by weight of polyaluminium sulfate and 100ml of deionized water, adding 10 parts by weight of sludge ceramsite, 5 parts by weight of composite core-shell fiber with a secondary microsphere structure layer and 3 parts by weight of sodium alginate gel modified metal composite porous material, continuously stirring and mixing, and then drying to obtain the dephosphorization water purifying agent.
Example 2
(1) Dissolving 10g of octadecylamine in 100ml of dimethylacetamide, stirring and mixing, adding 12g of pyromellitic dianhydride and 20g of phthalic anhydride, and stirring at 90 ℃ for 4 hours to prepare a spinning solution A; 1g of polystyrene particles and 1g of polycarbosilane are dissolved in 50ml of N, N-dimethylformamide to prepare a solution B;
(2) taking the solution A as a shell layer spinning solution and the solution B as a core layer spinning solution, and preparing the composite fiber by adopting a coaxial electrostatic spinning method; and (3) keeping the spinning voltage at 20kV in the spinning process, keeping the distance between a spray head and a collector at 20cm, and enabling the flow ratio of the solution A to the solution B to be 5: 1; dissolving 1mol of tetrabutyl titanate in 50ml of absolute ethyl alcohol, dropwise adding 0.35mol of 1mol/L hydrochloric acid solution and 2mol of deionized water, and strongly stirring to prepare titanium sol; adding 5g of the prepared composite fiber into titanium sol, carrying out ultrasonic treatment for 30min at 500W, then heating to 80 ℃, continuing ultrasonic treatment for 2h, cooling to room temperature, filtering, drying the solid, placing the solid in a muffle furnace, firstly heating to 500 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 1h, then heating to 800 ℃ at the heating rate of 10 ℃/min, carrying out heat preservation for 1h, finally heating to 1200 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 2h, and preparing the composite core-shell fiber with the secondary microsphere structure layer;
(3) dissolving 1g of sodium alginate in 80ml of deionized water, then adding 0.15g of manganese nitrate and 0.15g of ferric chloride, and stirring and dispersing to obtain a mixed solution; slowly dripping the prepared mixed solution into a calcium chloride solution with the mass concentration of 10%, stirring at 40 ℃ for 2 hours, and then carrying out spray drying to prepare the sodium alginate gel modified metal composite porous material; during spray drying, keeping the temperature of an air inlet at 180 ℃ and the temperature of an air outlet at 90 ℃;
(4) the sludge and the sodium bicarbonate are mixed according to a mass ratio of 5: 2, mixing, granulating and drying the mixture, preheating the mixture at 120 ℃ for 30min, then placing the mixture in a resistance furnace, firstly heating the mixture to 280 ℃ at the heating rate of 1 ℃/min, carrying out heat preservation treatment for 10min, then heating the mixture to 450 ℃ at the heating rate of 4 ℃/min, carrying out heat preservation treatment for 10min, finally heating the mixture to 600 ℃ at the heating rate of 6 ℃/min, and carrying out heat preservation treatment for 40min to obtain sludge ceramsite;
(5) mixing and stirring 15 parts of polyacrylamide, 13 parts of polyaluminium sulfate and 100ml of deionized water, adding 20 parts of sludge ceramsite, 10 parts of composite core-shell fiber with a secondary microsphere structure layer and 7 parts of sodium alginate gel modified metal composite porous material, continuously stirring and mixing, and drying to obtain the phosphorus removal water purifying agent.
Example 3
(1) Dissolving 10g of octadecylamine in 85ml of dimethylacetamide, stirring and mixing, adding 10g of pyromellitic dianhydride and 20g of phthalic anhydride, and stirring at 85 ℃ for 3 hours to prepare a spinning solution A; 1g of polystyrene particles and 0.8g of polycarbosilane are dissolved in 50ml of N, N-dimethylformamide to prepare a solution B;
(2) taking the solution A as a shell layer spinning solution and the solution B as a core layer spinning solution, and preparing the composite fiber by adopting a coaxial electrostatic spinning method; keeping the spinning voltage at 15kV in the spinning process, keeping the distance between a spray head and a collector at 10m, and enabling the flow ratio of the solution A to the solution B to be 2: 1; dissolving 1mol of tetrabutyl titanate in 50ml of absolute ethyl alcohol, dropwise adding 0.35mol of 1mol/L hydrochloric acid solution and 2mol of deionized water, and strongly stirring to prepare titanium sol; adding 4.5g of the prepared composite fiber into titanium sol, carrying out ultrasonic treatment for 15min at 500W, then heating to 65 ℃, continuing ultrasonic treatment for 1h, cooling to room temperature, filtering, drying the solid, then placing the solid in a muffle furnace, firstly heating to 500 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 1h, then heating to 800 ℃ at the heating rate of 10 ℃/min, carrying out heat preservation for 1h, finally heating to 1200 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 2h, and preparing the composite core-shell fiber with the secondary microsphere structure layer;
(3) dissolving 1g of sodium alginate in 80ml of deionized water, then adding 0.3g of manganese nitrate and 0.15g of ferric chloride, and stirring and dispersing to obtain a mixed solution; slowly dripping the prepared mixed solution into a calcium chloride solution with the mass concentration of 10%, stirring and processing for 1.5h at 40 ℃, and then carrying out spray drying to prepare the sodium alginate gel modified metal composite porous material; during spray drying, keeping the temperature of an air inlet at 160 ℃ and the temperature of an air outlet at 75 ℃;
(4) the sludge and the sodium bicarbonate are mixed according to a mass ratio of 5: 1.5, mixing, granulating, drying, preheating at 120 ℃ for 30min, placing in a resistance furnace, heating to 280 ℃ at the heating rate of 1 ℃/min, performing heat preservation treatment for 10min, heating to 450 ℃ at the heating rate of 4 ℃/min, performing heat preservation treatment for 10min, heating to 600 ℃ at the heating rate of 6 ℃/min, and performing heat preservation treatment for 40min to obtain sludge ceramsite;
(5) mixing and stirring 8 parts by weight of polyacrylamide, 10 parts by weight of polyaluminium sulfate and 100ml of deionized water, adding 15 parts by weight of sludge ceramsite, 5 parts by weight of composite core-shell fiber with a secondary microsphere structure layer and 6 parts by weight of sodium alginate gel modified metal composite porous material, continuously stirring and mixing, and then drying to obtain the dephosphorization water purifying agent.
Example 4
(1) Dissolving 10g of octadecylamine in 90ml of dimethylacetamide, stirring and mixing, adding 11g of pyromellitic dianhydride and 18g of phthalic anhydride, and stirring at 90 ℃ for 3 hours to prepare a spinning solution A; 1g of polystyrene particles and 0.9g of polycarbosilane are dissolved in 50ml of N, N-dimethylformamide to prepare a solution B;
(2) taking the solution A as a shell layer spinning solution and the solution B as a core layer spinning solution, and preparing the composite fiber by adopting a coaxial electrostatic spinning method; and (3) keeping the spinning voltage at 15kV in the spinning process, keeping the distance between the spray head and the collector at 15m, and enabling the flow ratio of the solution A to the solution B to be 2: 1; dissolving 1mol of tetrabutyl titanate in 50ml of absolute ethyl alcohol, dropwise adding 0.35mol of 1mol/L hydrochloric acid solution and 2mol of deionized water, and strongly stirring to prepare titanium sol; adding 4-5g of the prepared composite fiber into titanium sol, carrying out ultrasonic treatment for 20min at 500W, then heating to 70 ℃, continuing ultrasonic treatment for 2h, cooling to room temperature, filtering, drying the solid, then placing the solid in a muffle furnace, firstly heating to 500 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 1h, then heating to 800 ℃ at the heating rate of 10 ℃/min, carrying out heat preservation for 1h, finally heating to 1200 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 2h, and preparing the composite core-shell fiber with the secondary microsphere structure layer;
(3) dissolving 1g of sodium alginate in 80ml of deionized water, then adding 0.2g of manganese nitrate and 0.15g of ferric chloride, and stirring and dispersing to obtain a mixed solution; slowly dripping the prepared mixed solution into a calcium chloride solution with the mass concentration of 10%, stirring at 40 ℃ for 2 hours, and then carrying out spray drying to prepare the sodium alginate gel modified metal composite porous material; during spray drying, keeping the temperature of an air inlet at 170 ℃ and the temperature of an air outlet at 80 ℃;
(4) the sludge and the sodium bicarbonate are mixed according to a mass ratio of 5: 1, mixing, granulating and drying, preheating at 120 ℃ for 30min, then placing in a resistance furnace, firstly heating to 280 ℃ at the heating rate of 1 ℃/min, carrying out heat preservation treatment for 10min, then heating to 450 ℃ at the heating rate of 4 ℃/min, carrying out heat preservation treatment for 10min, finally heating to 600 ℃ at the heating rate of 6 ℃/min, and carrying out heat preservation treatment for 40min to obtain sludge ceramsite;
(5) mixing and stirring 13 parts of polyacrylamide, 10 parts of polyaluminium sulfate and 100ml of deionized water, adding 15 parts of sludge ceramsite, 8 parts of composite core-shell fiber with a secondary microsphere structure layer and 4 parts of sodium alginate gel modified metal composite porous material, continuously stirring and mixing, and drying to obtain the phosphorus removal water purifying agent.
Example 5
(1) Dissolving 10g of octadecylamine in 95ml of dimethylacetamide, stirring and mixing, adding 10g of pyromellitic dianhydride and 20g of phthalic anhydride, and stirring at 90 ℃ for 3 hours to prepare a spinning solution A; 1g of polystyrene particles and 0.8g of polycarbosilane are dissolved in 50ml of N, N-dimethylformamide to prepare a solution B;
(2) taking the solution A as a shell layer spinning solution and the solution B as a core layer spinning solution, and preparing the composite fiber by adopting a coaxial electrostatic spinning method; and (3) keeping the spinning voltage at 20kV in the spinning process, keeping the distance between a spray head and a collector at 15cm, and enabling the flow ratio of the solution A to the solution B to be 4: 1; dissolving 1mol of tetrabutyl titanate in 50ml of absolute ethyl alcohol, dropwise adding 0.35mol of 1mol/L hydrochloric acid solution and 2mol of deionized water, and strongly stirring to prepare titanium sol; adding 5g of the prepared composite fiber into titanium sol, carrying out ultrasonic treatment for 20min at 500W, then heating to 75 ℃, continuing ultrasonic treatment for 2h, cooling to room temperature, filtering, drying the solid, placing the solid in a muffle furnace, firstly heating to 500 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 1h, then heating to 800 ℃ at the heating rate of 10 ℃/min, carrying out heat preservation for 1h, finally heating to 1200 ℃ at the heating rate of 5 ℃/min, carrying out heat preservation for 2h, and preparing the composite core-shell fiber with the secondary microsphere structure layer;
(3) dissolving 1g of sodium alginate in 80ml of deionized water, then adding 0.25g of manganese nitrate and 0.15g of ferric chloride, and stirring and dispersing to obtain a mixed solution; slowly dripping the prepared mixed solution into a calcium chloride solution with the mass concentration of 10%, stirring at 40 ℃ for 2 hours, and then carrying out spray drying to prepare the sodium alginate gel modified metal composite porous material; during spray drying, keeping the temperature of an air inlet at 170 ℃ and the temperature of an air outlet at 80 ℃;
(4) the sludge and the sodium bicarbonate are mixed according to a mass ratio of 5: 2, mixing, granulating and drying the mixture, preheating the mixture at 120 ℃ for 30min, then placing the mixture in a resistance furnace, firstly heating the mixture to 280 ℃ at the heating rate of 1 ℃/min, carrying out heat preservation treatment for 10min, then heating the mixture to 450 ℃ at the heating rate of 4 ℃/min, carrying out heat preservation treatment for 10min, finally heating the mixture to 600 ℃ at the heating rate of 6 ℃/min, and carrying out heat preservation treatment for 40min to obtain sludge ceramsite;
(5) mixing and stirring 14 parts by weight of polyacrylamide, 12 parts by weight of polyaluminium sulfate and 100ml of deionized water, adding 15 parts by weight of sludge ceramsite, 10 parts by weight of composite core-shell fiber with a secondary microsphere structure layer and 6 parts by weight of sodium alginate gel modified metal composite porous material, continuously stirring and mixing, and then drying to obtain the dephosphorization water purifying agent.
Application examples
Diluting the simulated wastewater concentrated solution to the initial phosphorus concentration of 100mg/L, putting 150 mL of the diluted simulated phosphorus-containing wastewater into a 250mL processor, adjusting the pH value of the wastewater to 7.00, weighing 2g of the prepared phosphorus removal water purifying agent into the processor, putting the processor containing the mixed solution into a shaking table, oscillating for 120h until adsorption balance is achieved, controlling the rotating speed to be 180r/min and the temperature to be (25 +/-0.3) DEG C, regularly sampling supernate by using an injector and storing the supernate by using an O.45 mu m cellulose acetate membrane. And measuring the phosphorus concentration of the sample by adopting a molybdenum-antimony anti-spectrophotometry method. The test results were as follows:
TABLE 1
| Initial concentration, mg/L | 100 | A phosphorus removal rate% |
| Example 1 | 0.25 | 99.7 |
| Example 2 | 0.20 | 99.8 |
| Example 3 | 0.23 | 99.7 |
| Example 4 | 0.25 | 99.7 |
| Example 5 | 0.3 | 99.8 |
From the test results, the phosphorus removal water purifying agent prepared by the invention has good phosphorus removal effect when used for wastewater treatment, and has no secondary pollution to water.
Although specific embodiments of the invention have been described, many other forms and modifications of the invention will be apparent to those skilled in the art. It is to be understood that the appended claims and this invention generally cover all such obvious forms and modifications which are within the true spirit and scope of the present invention.
Claims (10)
1. A dephosphorization water purifying agent is characterized by comprising composite core-shell fiber with a secondary microsphere structure layer, sludge ceramsite, polyacrylamide, polyaluminium sulfate and sodium alginate gel modified metal composite porous material; the composite core-shell fiber with the secondary microsphere structure layer is formed by depositing a porous nano titanium oxide particle coating on the surface of a C/SiC composite fiber with a core-shell structure; the sodium alginate gel modified metal composite porous material is prepared by taking sodium alginate gel as a carrier and loading manganese nitrate and ferric chloride as active components.
2. The phosphorus removal water purifying agent as claimed in claim 1, which is characterized in that: the sludge ceramsite is prepared from sludge and sodium bicarbonate in a mass ratio of (5): (1-2) the specific surface area of the powder is 83.5-85.5m2/g。
3. The phosphorus removal water purifying agent as claimed in claim 2, wherein: the temperature of the preheating treatment is 120 ℃, and the time of the preheating treatment is 30 min.
4. The phosphorus removal water purifying agent as claimed in claim 2, wherein: the sintering condition adopts staged sintering; firstly heating to 280 ℃ at a heating rate of 1 ℃/min, carrying out heat preservation treatment for 10min, then heating to 450 ℃ at a heating rate of 4 ℃/min, carrying out heat preservation treatment for 10min, and finally heating to 600 ℃ at a heating rate of 6 ℃/min, carrying out heat preservation treatment for 40 min.
5. The phosphorus removal water purifying agent as claimed in claim 1, which is characterized in that: the components are 5-10 parts of composite core-shell fiber with a secondary microsphere structure layer, 10-20 parts of sludge ceramsite, 7-15 parts of polyacrylamide, 8-13 parts of polyaluminium sulfate and 3-7 parts of sodium alginate gel modified metal composite porous material in parts by weight.
6. The preparation method of the phosphorus removal water purifying agent as claimed in any one of claims 1 to 5, characterized by comprising the following steps:
(1) dissolving octadecylamine in dimethylacetamide, stirring and mixing, adding pyromellitic dianhydride and phthalic anhydride, and stirring at 80-90 ℃ for 2-4h to prepare a spinning solution A; dissolving polystyrene particles and polycarbosilane in N, N-dimethylformamide to prepare a solution B;
(2) taking the solution A as a shell layer spinning solution and the solution B as a core layer spinning solution, and preparing the composite fiber by adopting a coaxial electrostatic spinning method; dissolving 1mol of tetrabutyl titanate in 50ml of absolute ethyl alcohol, dropwise adding 0.35mol of 1mol/L hydrochloric acid solution and 2mol of deionized water, and strongly stirring to prepare titanium sol; adding 4-5g of the prepared composite fiber into titanium sol, carrying out ultrasonic treatment for 10-30min at 500W, then heating to 60-80 ℃, continuing ultrasonic treatment for 1-2h, cooling to room temperature, filtering, drying the solid, and then placing in a muffle furnace for sintering treatment to obtain the composite core-shell fiber with a secondary microsphere structure layer;
(3) dissolving 1g of sodium alginate in 80ml of deionized water, then adding (0.1-0.3) g of manganese nitrate and (0.1-0.15) g of ferric chloride, and stirring and dispersing to obtain a mixed solution; slowly dripping the prepared mixed solution into a calcium chloride solution with the mass concentration of 10%, stirring at 40 ℃ for 1-2h, and then carrying out spray drying to prepare the sodium alginate gel modified metal composite porous material; during spray drying, keeping the temperature of an air inlet at 150-180 ℃ and the temperature of an air outlet at 70-90 ℃;
(4) mixing and stirring polyacrylamide, polyaluminium sulfate and 100ml of deionized water, then adding sludge ceramsite, composite core-shell fiber with a secondary microsphere structure layer and a sodium alginate gel modified metal composite porous material, continuously stirring and mixing, and then drying to obtain the phosphorus removal water purifying agent.
7. The preparation method of a phosphorus removal water purifying agent according to claim 6, wherein in step (1), the amount ratio of octadecylamine, dimethylacetamide, pyromellitic dianhydride and phthalic anhydride is 10g (80-100) ml: (10-12) g: (15-20) g.
8. The method for preparing a phosphorus removal water purifying agent according to claim 6, wherein in step (1), the amount ratio of the polystyrene particles to the polycarbosilane to the N, N-dimethylformamide is 1 g: (0.8-1) g: 50 ml.
9. The preparation method of a phosphorus removal water purifying agent as claimed in claim 6, wherein in step (2), the coaxial electrospinning process specifically comprises: spinning voltage is 10-20kV, the distance between a spray head and a collector is 10-20cm, and the flow ratio of the solution A to the solution B is (1-5): 1.
10. the preparation method of a phosphorus removal water purifying agent as claimed in claim 6, wherein in step (2), the sintering treatment comprises the following specific steps: firstly heating to 500 ℃ at the heating rate of 5 ℃/min, preserving heat for 1h, then heating to 800 ℃ at the heating rate of 10 ℃/min, preserving heat for 1h, and finally heating to 1200 ℃ at the heating rate of 5 ℃/min, preserving heat for 2 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894128.2A CN112090391A (en) | 2020-08-31 | 2020-08-31 | Dephosphorization water purifying agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894128.2A CN112090391A (en) | 2020-08-31 | 2020-08-31 | Dephosphorization water purifying agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112090391A true CN112090391A (en) | 2020-12-18 |
Family
ID=73758483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010894128.2A Pending CN112090391A (en) | 2020-08-31 | 2020-08-31 | Dephosphorization water purifying agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112090391A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06210282A (en) * | 1993-01-20 | 1994-08-02 | Ebara Infilco Co Ltd | Phosphorus removing material, its manufacture and treatment of phosphorus containing water |
| WO2009063456A1 (en) * | 2007-11-12 | 2009-05-22 | Technion Research And Development Foundation Ltd | Method for adsorption of phosphate contaminants from water solutions and its recovery |
| CN102503368A (en) * | 2011-10-17 | 2012-06-20 | 西安建筑科技大学 | Spherical haydite matrix for constructed wetland and its preparation method |
| CN106824156A (en) * | 2017-02-09 | 2017-06-13 | 中国科学院过程工程研究所 | A kind of titanium dioxide based active carbon fiber composite catalyst and its production and use |
| CN107081122A (en) * | 2017-06-15 | 2017-08-22 | 兰州交通大学 | The method that dephosphorization agent is prepared using copper water-supply pipe |
| CN107117693A (en) * | 2017-05-03 | 2017-09-01 | 浙江省农业科学院 | A kind of high efficiency composition water purification agent handled for livestock breeding wastewater |
| CN107376888A (en) * | 2017-07-18 | 2017-11-24 | 中国科学院城市环境研究所 | A kind of flexible titanium oxide/silica/carbon composite nano-fiber film and preparation method thereof |
-
2020
- 2020-08-31 CN CN202010894128.2A patent/CN112090391A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06210282A (en) * | 1993-01-20 | 1994-08-02 | Ebara Infilco Co Ltd | Phosphorus removing material, its manufacture and treatment of phosphorus containing water |
| WO2009063456A1 (en) * | 2007-11-12 | 2009-05-22 | Technion Research And Development Foundation Ltd | Method for adsorption of phosphate contaminants from water solutions and its recovery |
| CN102503368A (en) * | 2011-10-17 | 2012-06-20 | 西安建筑科技大学 | Spherical haydite matrix for constructed wetland and its preparation method |
| CN106824156A (en) * | 2017-02-09 | 2017-06-13 | 中国科学院过程工程研究所 | A kind of titanium dioxide based active carbon fiber composite catalyst and its production and use |
| CN107117693A (en) * | 2017-05-03 | 2017-09-01 | 浙江省农业科学院 | A kind of high efficiency composition water purification agent handled for livestock breeding wastewater |
| CN107081122A (en) * | 2017-06-15 | 2017-08-22 | 兰州交通大学 | The method that dephosphorization agent is prepared using copper water-supply pipe |
| CN107376888A (en) * | 2017-07-18 | 2017-11-24 | 中国科学院城市环境研究所 | A kind of flexible titanium oxide/silica/carbon composite nano-fiber film and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 史沫男: "海藻酸钠-***胶球对无机磷和Cr2O72-吸附研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111410315B (en) | Ecological treatment device for sewage treatment | |
| CN108793433B (en) | High-turbidity water quality emergency treatment technology | |
| CN112093844B (en) | Nitrogen-removing water purifying agent and preparation method thereof | |
| CN113321345A (en) | Method for simultaneously recovering phosphorus in water body and removing antibiotics based on sludge-based biochar | |
| CN113562846B (en) | Denitrification efficient carbon source and processing technology thereof | |
| CN113788549B (en) | Urban sewage treatment agent, preparation method and application thereof | |
| CN111410379B (en) | Efficient phosphorus removal method for domestic sewage | |
| CN112156662A (en) | Self-cleaning electrostatic spinning nanofiber filter membrane, preparation method and application | |
| CN111661943B (en) | Comprehensive biogas slurry utilization method | |
| CN112090391A (en) | Dephosphorization water purifying agent and preparation method thereof | |
| CN112718001B (en) | Nano cellulose based aerogel composite photocatalyst and application thereof | |
| CN113493245B (en) | Method for culturing anaerobic ammonia oxidation granular sludge with vivianite core | |
| CN109205955B (en) | Method for treating ammonia nitrogen-containing wastewater by chemical precipitation method and biological method | |
| CN113024052A (en) | Method for synchronously removing river sediment and ammonia nitrogen of overlying water body by using ammonia nitrogen release enhancer | |
| CN112110616A (en) | Black and odorous river sewage treatment process | |
| CN111362426A (en) | Method for in-situ purifying domestic sewage by circulating fluidization technology | |
| CN110217951A (en) | A kind of deep treatment method of antibiotic pharmaceutical wastewater | |
| CN108773873A (en) | A kind of purifying agent for polluted water and preparation method thereof | |
| CN115028316B (en) | Deep denitrification and decarbonization process for landfill leachate based on porous microspheres | |
| CN113736770B (en) | Particle strain, preparation method thereof and application thereof in biochemical treatment of sewage | |
| CN110575812B (en) | Environment-friendly adsorbing material for efficient phosphorus removal of argil/pyrolusite and preparation method thereof | |
| CN109912043B (en) | Preparation method and application of nano biological agent for removing nitrate in water body | |
| CN111841660B (en) | Preparation of magnetic suspension 3D ozone catalytic microspheres and application thereof in aquaculture sewage | |
| CN107032758A (en) | A kind of method that utilization sludge and cow dung prepare gas purification porous ceramics | |
| CN108862454A (en) | A kind of preparation method of Water body cleansing agent |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201218 |