CN109293074A - The device and method of time phosphorous in a kind of removal chemical nickle-plating wastewater - Google Patents
The device and method of time phosphorous in a kind of removal chemical nickle-plating wastewater Download PDFInfo
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- CN109293074A CN109293074A CN201811400059.4A CN201811400059A CN109293074A CN 109293074 A CN109293074 A CN 109293074A CN 201811400059 A CN201811400059 A CN 201811400059A CN 109293074 A CN109293074 A CN 109293074A
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- storage pool
- plating wastewater
- phosphorous
- pond
- chemical nickle
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- 239000002351 wastewater Substances 0.000 title claims abstract description 53
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000007747 plating Methods 0.000 title claims abstract description 36
- 239000000126 substance Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 38
- 230000003647 oxidation Effects 0.000 claims abstract description 31
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 31
- 239000007800 oxidant agent Substances 0.000 claims abstract description 30
- 230000001590 oxidative effect Effects 0.000 claims abstract description 30
- 230000003197 catalytic effect Effects 0.000 claims abstract description 28
- 238000005189 flocculation Methods 0.000 claims abstract description 24
- 230000016615 flocculation Effects 0.000 claims abstract description 24
- 238000004062 sedimentation Methods 0.000 claims abstract description 23
- 230000003750 conditioning effect Effects 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 10
- 230000007062 hydrolysis Effects 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 239000003575 carbonaceous material Substances 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 238000000975 co-precipitation Methods 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 229910052570 clay Inorganic materials 0.000 claims description 4
- 239000011335 coal coke Substances 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 3
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 3
- 238000005276 aerator Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- -1 hydroxypropyl methyl Chemical group 0.000 claims description 2
- 239000010802 sludge Substances 0.000 abstract description 6
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 13
- 229910052698 phosphorus Inorganic materials 0.000 description 11
- 239000011574 phosphorus Substances 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000009388 chemical precipitation Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 3
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011953 bioanalysis Methods 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000192700 Cyanobacteria Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229920000037 Polyproline Polymers 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F1/52—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
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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)
Abstract
The invention belongs to field of waste water treatment, more particularly to a kind of device and method of time phosphorous in removal chemical nickle-plating wastewater, device includes passing through the sequentially connected conditioning tank of pipeline, catalytic hydrolysis reaction pond, oxidation pond, flocculation sedimentation tank, it further include oxidant storage pool and flocculant storage pool, the oxidant storage pool is connect with the oxidation pond, the flocculant storage pool is connect with the flocculation sedimentation tank, the conditioning tank water inlet is equipped with the first elevator pump, the pipeline that the conditioning tank is connect with the catalytic hydrolysis reaction pond is equipped with the second elevator pump, the pipeline that the oxidant storage pool is connect with the oxidation pond is equipped with the first metering pump, the pipeline that the flocculant storage pool is connect with the flocculation sedimentation tank is equipped with the second metering pump.The present invention handles chemical nickle-plating wastewater, and sludge yield is small, operating cost is low and can efficiently completely remove time phosphorous in chemical nickle-plating wastewater.
Description
Technical field
The invention belongs to technical field of waste water processing, and in particular to a kind of device for removing time phosphorous in chemical nickle-plating wastewater
And method.
Background technique
Chemical nickel plating due to coating uniformly, be not required to that external power, hardness are high, wear-resisting property is good, plating is not by component ruler
The advantages that very little shape limits and be widely used in every field, but a large amount of chemistry can be generated in chemical nickel plating production process
Nickel-plating waste water.
Containing the hypophosphite of higher concentration in chemical nickle-plating wastewater, phosphorus is the nutrient of water body, can cause water body
Eutrophication makes the aquatiles mass propagation such as water plant and cyanobacteria, consumes the oxygen dissolved in water, forces the biology such as fish because of anoxic
And it is dead.Therefore, the phosphorus recycling effectively simply removed in eutrophication water has become the pass in water pollution control
Key problem.
Currently used dephosphorization process mainly has bioanalysis, absorption method, chemical precipitation method etc..Bioanalysis is to utilize polyP bacteria
The removal to phosphor in sewage is completed in anoxic, the alternate situation of anaerobic and aerobic, but dephosphorization efficiency is low, and single biology removes
Phosphorus technique is extremely difficult to discharge standard.Chemical dephosphorization includes chemical precipitation method, absorption method, ion-exchange, hyperfiltration etc..Its
In more commonly for absorption method be using certain porous or bigger serface solid matter to the phosphate anion in waste water
Affinity realize the purpose of sewage dephosphorization, made by being precipitated on the physical absorption of adsorbent surface, ion exchange or surface
With, phosphorus is separated from sewage, and usually all contain higher complexing agent and buffer in chemical nickle-plating wastewater, absorption method
Phosphorus difficult to realize completely removes.
Secondary phosphorous is mainly aoxidized the phosphorus that is positive using oxidant by the technique that chemical precipitation method removes time phosphorous, recycles gold
Belong to salt and positive phosphorus generates precipitating dephosphorization, this method can effectively remove the secondary phosphorous in chemical nickle-plating wastewater, but need to add excessive
The oxidation of secondary phosphorous is positive phosphorus by oxidant, and need to add a large amount of metal salt and positive phosphorus is generated and precipitated, and sludge yield is big, dephosphorization at
This is high.
In conclusion containing the hypophosphite of higher concentration in chemical nickle-plating wastewater, and conventional treatment method presence is gone
Except low efficiency, processing is not thorough, processing cost is high the defects of.
Summary of the invention
The object of the present invention is to provide a kind of devices that can efficiently completely remove time phosphorous in chemical nickle-plating wastewater
The technical solution of the present invention is as follows: providing a kind of device for removing time phosphorous in chemical nickle-plating wastewater, including pass through pipe
The sequentially connected conditioning tank in road, catalytic hydrolysis reaction pond, oxidation pond, flocculation sedimentation tank further include oxidant storage pool and flocculation
Agent storage pool, the oxidant storage pool are connect with the oxidation pond, and the flocculant storage pool and the flocculation sedimentation tank connect
It connects, the conditioning tank water inlet is equipped with the first elevator pump, on the pipeline that the conditioning tank is connect with the catalytic hydrolysis reaction pond
Equipped with the second elevator pump, the pipeline that the oxidant storage pool is connect with the oxidation pond is equipped with the first metering pump, the wadding
The pipeline that solidifying agent storage pool is connect with the flocculation sedimentation tank is equipped with the second metering pump.
Preferably, the catalytic hydrolysis reaction bottom of pond portion is equipped with aerator.
Preferably, catalyzing hydrolysis filler is equipped in the catalytic hydrolysis reaction pond.
Preferably, the first mixing tube is equipped in the oxidation pond, first mixing tube is tee tube, the first mixing tube
Three nozzles are separately connected oxidation pond, catalytic hydrolysis reaction pond and oxidant storage pool.
Preferably, flow-stopping plate is equipped in the flocculation sedimentation tank.
Preferably, the second mixing tube is equipped in the flocculation sedimentation tank, second mixing tube is tee tube, the second mixing
Three nozzles of pipe are separately connected flocculant storage pool, oxidation pond and flocculation sedimentation tank.
Another technical solution of the invention are as follows: a kind of method of time phosphorous in removal chemical nickle-plating wastewater is provided, including with
Lower step:
Step 1: adjusting pH value of waste water is 1.0~4.0；
Step 2: waste water is pumped into the reaction of catalytic hydrolysis reaction area and generates nascent state Fe2+；
Step 3: adding oxidant, makes nascent state Fe in waste water2+It is oxidized agent and is oxidized to nascent state Fe3+；
Step 4: adjusting pH value of waste water is 3.5~6.5, adds flocculant, makes secondary phosphorous and nascent state Fe in waste water3+
Form co-precipitation；
Preferably, the reaction time in the catalytic hydrolysis reaction area in the step 2 is 30~90min, the catalyzing hydrolysis
Reaction zone contains catalyzing hydrolysis filler, and the catalyzing hydrolysis filler includes the component of following mass content: iron-bearing materials 80%
~90%, carbonaceous material is 1%~10%, and trace meter is 0.1ppm~10ppm, and adhesive is 2.0%~5%, pore creating material
It is 2.0%~5%.
Preferably, the iron-bearing materials are one of reduced iron powder, iron filings and Iron concentrate or multiple combinations, described carbon containing
Material is one of activated carbon, graphite and coal coke or multiple combinations, and the trace meter is one in palladium, platinum, manganese and chromium
Kind or multiple combinations, described adhesive are one of bentonite, clay and sodium metasilicate or multiple combinations, and the pore creating material is boron
One of sour sodium, sodium carbonate and hydroxypropyl methyl cellulose or multiple combinations.
Preferably, the oxidant in the step 3 is that one or more of sodium chlorate, sodium hypochlorite, hydrogen peroxide are compound
It forms, the dosage of the oxidant is 300~3000mg/L；Flocculant in the step 4 is polyacrylamide
The invention has the benefit that
1. the pipeline that oxidant storage pool is connect with oxidation pond in the present apparatus is equipped with the first metering pump, flocculant storage pool
The pipeline connecting with flocculation sedimentation tank is equipped with the second metering pump, convenient for oxidant and flocculant, and easily controllable addition is added
Amount keeps reaction more efficiently thorough.
2. the tee tube in oxidation pond and flocculation sedimentation tank in the present apparatus can make waste water and medicament abundant in tee tube
Hybrid reaction saves space reactor, promotes reaction efficiency.
3. the present apparatus forms coupled system with catalytic hydrolysis reaction pond and oxidation pond and handles time phosphorous waste water, in conjunction with catalysis oxygen
Change and chemical precipitation is in one, disposably completely removes time phosphorous.
4. the present apparatus handles chemical nickle-plating wastewater, sludge yield is small, operating cost is low and can efficiently completely remove chemical plating
Time phosphorous in nickel waste water.
5. this method generates nascent state Fe using catalytic hydrolysis reaction2+, clean and environmental protection, sludge quantity is few.
6. nascent state Fe2+Compared to the Fe in chemical agent2+It is easier to be oxidized agent and is oxidized to Fe3+, and nascent state Fe3+
It can directly be formed and be co-precipitated with secondary phosphorous, efficiently remove time phosphorous.
7. being different from the conventional phosphorus removing method that will be precipitated after secondary phosphorous initial oxidation, nascent state Fe in this method3+Directly with it is secondary
Phosphorous forms co-precipitation.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram of time phosphorous in present invention removal chemical nickle-plating wastewater.
Fig. 2 is the method flow diagram of time phosphorous in present invention removal chemical nickle-plating wastewater.
Specific embodiment
The present invention is further detailed in conjunction with the accompanying drawings below:
Refering to Figure 1, providing a kind of device for removing time phosphorous in chemical nickle-plating wastewater, including successively by pipeline
Conditioning tank 1, catalytic hydrolysis reaction pond 2, oxidation pond 3, the flocculation sedimentation tank 4 of connection, further include oxidant storage pool 5 and flocculant
Storage pool 6, the oxidant storage pool 5 are connect with the oxidation pond 3, the flocculant storage pool 6 and the flocculation sedimentation tank 4
Connection, 1 water inlet of conditioning tank are equipped with the first elevator pump 7, and the conditioning tank 1 is connect with the catalytic hydrolysis reaction pond 2
Pipeline is equipped with the second elevator pump 8, and the pipeline that the oxidant storage pool 5 is connect with the oxidation pond 3 is equipped with the first metering
Pump 11, the pipeline that the flocculant storage pool 6 is connect with the flocculation sedimentation tank 4 are equipped with the second metering pump 13.
2 bottom of catalytic hydrolysis reaction pond is equipped with aerator 10.
Catalyzing hydrolysis filler 9 is equipped in the catalytic hydrolysis reaction pond 2, the catalyzing hydrolysis filler 9 includes following quality
The component of content: iron-bearing materials are 80%~90%, and carbonaceous material is 1%~10%, and trace meter is 0.1ppm~10ppm,
Adhesive is 2.0%~5%, and pore creating material is 2.0%~5%.Wherein iron-bearing materials are reduced iron powder, in iron filings, Iron concentrate
One or more combinations, the carbonaceous material are one of active carbon, graphite, coal coke or multiple combinations, the micro gold
Belonging to is one of palladium, platinum, manganese and chromium or multiple combinations, described adhesive be one of bentonite, clay and sodium metasilicate or
Multiple combinations, the pore creating material include one of Boratex, sodium carbonate and hydroxypropyl methyl cellulose or multiple combinations.
The first mixing tube 12 is equipped in the oxidation pond 3, first mixing tube 12 is tee tube, the first mixing tube 12
Three nozzles are separately connected oxidation pond 3, catalytic hydrolysis reaction pond 2 and oxidant storage pool 5.
Flow-stopping plate 14 is equipped in the flocculation sedimentation tank 4.The second mixing tube 15 is additionally provided in the flocculant storage pool 6,
Second mixing tube 15 is tee tube, and three nozzles of the second mixing tube 15 are separately connected flocculant storage pool 6, oxidation pond 3
With flocculation sedimentation tank 4.
By the sequentially connected conditioning tank 1 of setting pipeline, catalytic hydrolysis reaction pond 2, oxidation pond 3, flocculation sedimentation tank 4, make
It obtains waste water and sequentially enters and reacted in each pond, pass through setting oxidant storage pool 5 and flocculant storage pool 6, the oxidant
Storage pool 5 is connect with the oxidation pond 3, and the flocculant storage pool 6 is connect with the flocculation sedimentation tank 4, and the oxidation
The pipeline that agent storage pool 5 is connect with the oxidation pond 3 is equipped with the first metering pump 11, the flocculant storage pool 6 and the wadding
The pipeline that solidifying sedimentation basin 4 connects is equipped with the second metering pump 13, convenient for oxidant and flocculant, and easily controllable addition is added
Amount keeps reaction more efficiently thorough.
It please refers to shown in Fig. 2, a method of time phosphorous in removal chemical nickle-plating wastewater, method includes the following steps:
Step 1: adjusting pH value of waste water is 1.0~4.0；
Step 2: waste water is pumped into the reaction of catalytic hydrolysis reaction area and generates nascent state Fe2+；
Step 3: adding oxidant, makes nascent state Fe in waste water2+It is oxidized agent and is oxidized to nascent state Fe3+；
Step 4: adjusting pH value of waste water is 3.5~6.5, adds flocculant, makes secondary phosphorous and nascent state Fe in waste water3+
Form co-precipitation；
The reaction time in the catalytic hydrolysis reaction area in the step 2 is 30~90min, the catalytic hydrolysis reaction area
Containing catalyzing hydrolysis filler, the catalyzing hydrolysis filler includes the component of following mass content: iron-bearing materials are 80%~90%,
Carbonaceous material is 1%~10%, and trace meter is 0.1ppm~10ppm, and adhesive is 2.0%~5%, pore creating material 2.0%
~5%；Wherein iron-bearing materials are one of reduced iron powder, iron filings, Iron concentrate or multiple combinations, and the carbonaceous material is activity
One of charcoal, graphite, coal coke or multiple combinations, the trace meter are one of palladium, platinum, manganese and chromium or a variety of groups
It closes, described adhesive is one of bentonite, clay and sodium metasilicate or multiple combinations, the pore creating material include Boratex, carbon
One of sour sodium and hydroxypropyl methyl cellulose or multiple combinations.
Oxidant in the step 3 is that one or more of sodium chlorate, sodium hypochlorite, hydrogen peroxide are combined, institute
The dosage for stating oxidant is 300~3000mg/L；
Flocculant described in the step 4 is polyacrylamide.
This method generates nascent state Fe using catalytic hydrolysis reaction2+, clean and environmental protection, sludge quantity is few；Nascent state Fe2+It compares
Fe in chemical agent2+It is easier to be oxidized agent and is oxidized to Fe3+, and nascent state Fe3+It can directly be formed with secondary phosphorous coprecipitated
It forms sediment, efficiently removes time phosphorous；
Different from the conventional phosphorus removing method that will be precipitated after secondary phosphorous initial oxidation, nascent state Fe in this technique3+Directly with secondary Asia
Phosphorus forms co-precipitation；Chemical nickle-plating wastewater is handled with the processing method, sludge yield is small, operating cost is low and can efficiently thoroughly
Remove time phosphorous in chemical nickle-plating wastewater.
Following table is 5 test relevant parameter tables that time phosphorous in chemical nickle-plating wastewater is removed with the present apparatus:
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the invention as claimed with
Modification, should all belong to the covering scope of the claims in the present invention.
Claims (10)
1. the device of time phosphorous in a kind of removal chemical nickle-plating wastewater, which is characterized in that including passing through the sequentially connected tune of pipeline
Pond, catalytic hydrolysis reaction pond, oxidation pond, flocculation sedimentation tank are saved, further includes oxidant storage pool and flocculant storage pool, the oxygen
Agent storage pool is connect with the oxidation pond, and the flocculant storage pool is connect with the flocculation sedimentation tank, the conditioning tank into
The mouth of a river is equipped with the first elevator pump, and the pipeline that the conditioning tank is connect with the catalytic hydrolysis reaction pond is equipped with the second elevator pump,
The pipeline that the oxidant storage pool is connect with the oxidation pond be equipped with the first metering pump, the flocculant storage pool with it is described
The pipeline of flocculation sedimentation tank connection is equipped with the second metering pump.
2. the device of time phosphorous in removal chemical nickle-plating wastewater according to claim 1, which is characterized in that the catalytic water
Solution reaction bottom of pond portion is equipped with aerator.
3. the device of time phosphorous in removal chemical nickle-plating wastewater according to claim 1, which is characterized in that the catalytic water
It solves and is equipped with catalyzing hydrolysis filler in reaction tank.
4. the device of time phosphorous in removal chemical nickle-plating wastewater according to claim 1, which is characterized in that the oxidation pond
It is inside equipped with the first mixing tube, first mixing tube is tee tube, and three nozzles of the first mixing tube are separately connected oxidation pond, urge
Change hydrolysis reaction bath and oxidant storage pool.
5. the device of time phosphorous in removal chemical nickle-plating wastewater according to claim 1, which is characterized in that the flocculation is heavy
Flow-stopping plate is equipped in the pond of shallow lake.
6. the device of time phosphorous in removal chemical nickle-plating wastewater according to claim 1, which is characterized in that the flocculant
The second mixing tube is equipped in storage pool, second mixing tube is tee tube, and three nozzles of the second mixing tube are separately connected wadding
Solidifying agent storage pool, oxidation pond and flocculation sedimentation tank.
7. a kind of method of time phosphorous in removal chemical nickle-plating wastewater, which comprises the following steps:
Step 1: adjusting pH value of waste water is 1.0~4.0；
Step 2: waste water is pumped into the reaction of catalytic hydrolysis reaction area and generates nascent state Fe2+；
Step 3: adding oxidant, makes nascent state Fe in waste water2+It is oxidized agent and is oxidized to nascent state Fe3+；
Step 4: adjusting pH value of waste water is 3.5~6.5, adds flocculant, makes secondary phosphorous and nascent state Fe in waste water3+It is formed
Co-precipitation.
8. the method for time phosphorous in removal chemical nickle-plating wastewater according to claim 7, which is characterized in that the step 2
In catalytic hydrolysis reaction area reaction time be 30~90min, catalyzing hydrolysis filler, institute are contained in the catalytic hydrolysis reaction area
State the component that catalyzing hydrolysis filler includes following mass content: iron-bearing materials are 80%~90%, carbonaceous material is 1%~
10%, trace meter is 0.1ppm~10ppm, and adhesive is 2.0%~5%, and pore creating material is 2.0%~5%.
9. the method for time phosphorous in removal chemical nickle-plating wastewater according to claim 8, which is characterized in that described to contain iron material
Material is one of reduced iron powder, iron filings and Iron concentrate or multiple combinations, and the carbonaceous material is activated carbon, graphite and coal coke
One of or multiple combinations, the trace meter is one of palladium, platinum, manganese and chromium or multiple combinations, described adhesive are
One of bentonite, clay and sodium metasilicate or multiple combinations, the pore creating material are that Boratex, sodium carbonate and hydroxypropyl methyl are fine
Tie up one of element or multiple combinations.
10. the method for time phosphorous in removal chemical nickle-plating wastewater according to claim 7, which is characterized in that the step
Oxidant in three is that one or more of sodium chlorate, sodium hypochlorite, hydrogen peroxide are combined, the dosage of the oxidant
For 300~3000mg/L；Flocculant in the step 4 is polyacrylamide.
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| CN110980962A (en) * | 2019-11-26 | 2020-04-10 | 浙江永续环境工程有限公司 | Phosphorus-accumulating microbial inoculum and sludge treatment technology using same |
| CN113651411A (en) * | 2021-07-31 | 2021-11-16 | 广东省科学院资源利用与稀土开发研究所 | Magnetic catalytic oxidation phosphorus removal process and phosphorus removal system |
| CN113735299A (en) * | 2020-05-14 | 2021-12-03 | 领跃电子科技（珠海）有限公司 | Wastewater dephosphorization device and dephosphorization method thereof |
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Application publication date: 20190201 |