CN110182930A - A kind of integrated waste-water treater, method and system - Google Patents
A kind of integrated waste-water treater, method and system Download PDFInfo
- Publication number
- CN110182930A CN110182930A CN201910427846.6A CN201910427846A CN110182930A CN 110182930 A CN110182930 A CN 110182930A CN 201910427846 A CN201910427846 A CN 201910427846A CN 110182930 A CN110182930 A CN 110182930A
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- Prior art keywords
- accommodating chamber
- filter membrane
- waste water
- persulfate
- ion
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- 239000002351 wastewater Substances 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 123
- 239000012528 membrane Substances 0.000 claims abstract description 106
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims abstract description 85
- 239000002245 particle Substances 0.000 claims abstract description 48
- 235000014413 iron hydroxide Nutrition 0.000 claims abstract description 35
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 claims abstract description 35
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 34
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 6
- 231100000719 pollutant Toxicity 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims description 48
- 239000000243 solution Substances 0.000 claims description 37
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 25
- 239000002253 acid Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 229910001448 ferrous ion Inorganic materials 0.000 claims description 15
- 239000000919 ceramic Substances 0.000 claims description 14
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 13
- -1 cerium ion Chemical class 0.000 claims description 12
- 239000011259 mixed solution Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 230000010354 integration Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 229910001453 nickel ion Inorganic materials 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 7
- 229910052684 Cerium Inorganic materials 0.000 claims description 6
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 229910001456 vanadium ion Inorganic materials 0.000 claims description 6
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 claims description 5
- 229910001437 manganese ion Inorganic materials 0.000 claims description 5
- 229910001429 cobalt ion Inorganic materials 0.000 claims description 4
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims description 4
- 125000002091 cationic group Chemical group 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 56
- 230000003647 oxidation Effects 0.000 abstract description 25
- 238000004140 cleaning Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- 238000011065 in-situ storage Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000000975 co-precipitation Methods 0.000 abstract description 4
- 150000004696 coordination complex Chemical class 0.000 abstract description 4
- 230000002427 irreversible effect Effects 0.000 abstract description 4
- 238000009285 membrane fouling Methods 0.000 abstract description 4
- 229910000000 metal hydroxide Inorganic materials 0.000 abstract description 4
- 150000004692 metal hydroxides Chemical class 0.000 abstract description 4
- 150000002894 organic compounds Chemical class 0.000 abstract description 4
- 150000003254 radicals Chemical class 0.000 abstract description 4
- 230000000536 complexating effect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 14
- 238000000926 separation method Methods 0.000 description 11
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- 238000004090 dissolution Methods 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 239000011574 phosphorus Substances 0.000 description 7
- 238000003918 potentiometric titration Methods 0.000 description 7
- 229910001385 heavy metal Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 3
- 238000005276 aerator Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 238000011066 ex-situ storage Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000001603 reducing effect Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910001447 ferric ion Inorganic materials 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000009938 salting Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910001428 transition metal ion Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of integrated waste-water treater, method and system, on the one hand since UF membrane and persulfate advanced oxidation reaction are integrated, the free radical that persulfate advanced oxidation reaction is formed being capable of oxidation of organic compounds, metal complex and inorganic matter, metal hydroxides wadding body is due to absorption, the effects of complexing is with co-precipitation, it is removed while realizing multiple pollutant, these features can greatly reduce the irreversible membrane fouling through filter membrane, reduce the stifled probability of filter membrane dirt, and filter membrane is in accommodating chamber, the disturbance of mixer bring can make the iron hydroxide wadding body gathered on filter membrane constantly disturb simultaneously, zero-valent iron particle is disturbed in filter membrane surface, it can play the role of online Membrane cleaning in conjunction with generated in-situ free-radical oxidation agent, and then further mitigate the burden of filter membrane, further prevent filter membrane dirt stifled , compared to persulfate advanced oxidation reaction and UF membrane non-integral device, the stifled phenomenon of filter membrane dirt is dramatically reduced, can be used for serialization wastewater treatment.
Description
Technical field
The present invention relates to technical field of waste water processing, more particularly to a kind of integrated waste-water treater, method and
System.
Background technique
Persulfate advanced oxidation is the used sulfate radical (S using transition metal ions as activator2O8 2-) carry out chemical oxygen
The wastewater treatment method of change, is reacted with persulfate by transition metal ions and generates potentiometric titrations, and sulfate radical is free
Base can destroy the complex compound of organic matter or organic matter and heavy metal in waste water, and then achieve the purpose that wastewater degradation.Mesh
The preceding wastewater processing technology based on persulfate advanced oxidation still has many deficiencies, and there are improved spaces.
Summary of the invention
In order to solve above-mentioned deficiency, the application is changed for the wastewater processing technology of persulfate advanced oxidation reaction
Into, persulfate advanced oxidation reaction is combined with membrane separation technique, form integrated waste-water treater, method and
System.
One aspect of the invention embodiment provides a kind of integrated waste-water treater, comprising:
Device noumenon has accommodating chamber；
Persulfate solution and waste water to be processed are passed through the accommodating chamber by the first input device；
Second input device, Xiang Suoshu accommodating chamber put into nulvalent iron particle；
Mixer, mixing persulfate solution, the waste water to be processed and the nulvalent iron particle；
PH regulating apparatus, the pH value that the reaction environment in the accommodating chamber is adjusted in first time period are in first
Soda acid range so that the nulvalent iron particle is converted into ferrous ion, and then activates persulfate, and first time period it
The pH value that the reaction environment in the accommodating chamber is adjusted in second time period afterwards is in the second soda acid range, to generate hydrogen-oxygen
Change iron wadding body；
Filtering film component including the filter membrane being set in the accommodating chamber, and collects the liquid for penetrating the filter membrane
Collector, the filter membrane have several first ducts that the iron hydroxide wadding body can be prevented to penetrate；And
Nulvalent iron particle separator is placed at the outlet at bottom of the accommodating chamber, is had and is less than the Zero-valent Iron partial size simultaneously
Several second ducts of the iron hydroxide wadding body can be passed through.
In a preferred embodiment, first input device includes:
Persulfate fluid reservoir stores the persulfate solution；
Waste water tank stores the waste water to be processed；And
Premixed device premixes the persulfate solution and waste water to be processed, and the mixed solution after premix can be pumped into institute
State accommodating chamber；Alternatively,
First input device includes:
Persulfate fluid reservoir stores the persulfate solution；
Waste water connecting pipeline is connected to the waste water discharge opening of a production system；And
Premixed device premixes the persulfate solution and waste water to be processed, and the mixed solution after premix can be pumped into institute
State accommodating chamber.
In a preferred embodiment, first input device further comprises:
Cationic fluid reservoir, and the premixed device pipeline connection, and store ferrous ion, ruthenium ion, cerium ion, cobalt
At least one of ion, manganese ion, vanadium ion and nickel ion.
In a preferred embodiment, the filter membrane is ceramic membrane.
In a preferred embodiment, further includes: blowdown component；
The blowdown component includes: dredge pump and sludge collector, and the sludge collector is for collecting the accommodating chamber
The iron hydroxide wadding body and pollutant of middle sedimentation.
Second aspect of the present invention embodiment provides a kind of integrated wastewater treatment method, comprising:
By mixed solution and nulvalent iron particle the investment wastewater treatment equipment of persulfate solution and waste water to be processed
In accommodating chamber；
Mix persulfate solution, the waste water to be processed and the nulvalent iron particle in the accommodating chamber；
The pH value that the reaction environment in the accommodating chamber is adjusted in first time period is in the first soda acid range, so that
The nulvalent iron particle is converted into ferrous ion, and then activates persulfate；
The pH value that the reaction environment in the accommodating chamber is adjusted in second time period after the first period of time is in
Second soda acid range, to generate iron hydroxide wadding body；
By collected at suction through the liquid of filter membrane being set in the accommodating chamber, wherein have can for the filter membrane
Several first ducts for preventing the iron hydroxide wadding body from penetrating；
Wherein, nulvalent iron particle separator, the nulvalent iron particle separation are provided at the outlet at bottom of the accommodating chamber
Device has less than the Zero-valent Iron partial size and can pass through several second ducts of the iron hydroxide wadding body.
In a preferred embodiment, further includes:
Premix the persulfate solution and waste water to be processed；
Persulfate solution, the waste water to be processed and the nulvalent iron particle in the mixing accommodating chamber,
Include:
Mixed solution after the nulvalent iron particle and premix is pumped into the accommodating chamber.
In a preferred embodiment, further includes:
Collect the iron hydroxide wadding body settled in the accommodating chamber.
In a preferred embodiment, further includes:
By at least one of ferrous ion, ruthenium ion, cerium ion, cobalt ions, manganese ion, vanadium ion and nickel ion
It is passed through the accommodating chamber.
Third aspect present invention embodiment provides a kind of integrated waste water treatment system, including integration as described above is given up
Water treatment facilities.
Beneficial effects of the present invention:
The present invention provides a kind of integrated waste-water treater, method and system, passes through and combines persulfate advanced oxidation
Reaction and membrane separation technique, and membrane separation technique is integrated in the same accommodating chamber that persulfate advanced oxidation reaction occurs
In, and then form integrated waste-water treater.One aspect of the present invention is due to UF membrane and persulfate advanced oxidation reaction collection
Integrally, persulfate advanced oxidation reaction formed free radical can oxidation of organic compounds, metal complex and inorganic matter, metal
Hydroxide wadding body is removed, these features can due to the effects of adsorbing, be complexed with co-precipitation while realizing multiple pollutant
The irreversible membrane fouling through filter membrane is greatly reduced, the stifled probability of filter membrane dirt is reduced, and filter membrane is in accommodating chamber, mixes
The disturbance of clutch bring can make the iron hydroxide wadding body gathered on filter membrane constantly disturb simultaneously, further prevent filter membrane
Dirt is stifled, compared to persulfate advanced oxidation reaction and UF membrane non-integral device, dramatically reduces what filter membrane dirt was blocked up
Phenomenon；On the other hand, the nulvalent iron particle in transition metal is chosen, nulvalent iron particle can turn under aerobic or oxygen free condition
Ferrous ion is turned to, and then persulfate advanced oxidation reaction occurs, Zero-valent Iron is in flow regime, and active site obtains in time
It updates, the more traditional heterogeneous persulfate advanced oxidation of reactivity improves；Further, zero-valent iron particle is in filter membrane surface
Disturbance, can play the role of online Membrane cleaning in conjunction with generated in-situ free-radical oxidation agent, and then further mitigate the negative of filter membrane
Load mitigates the stifled phenomenon of filter membrane dirt；In addition, the present invention is dirty stifled due to being not easy, it can be used for the online wastewater treatment of serialization, and
And integrated apparatus can further reduce process costs, manufacturing cost and occupy volume.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 shows a kind of structural schematic diagram of integrated waste-water treater in the embodiment of the present invention.
Fig. 2 shows the flow diagrams of integration wastewater treatment method a kind of in the embodiment of the present invention.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings
It is bright.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
The various schematic diagrames for disclosing embodiment according to the present invention are shown in the attached drawings.These figures are not drawn to scale
, wherein some details are magnified for the purpose of clear expression, and some details may be omitted.It is shown in the drawings
Various regions, the shape of layer and relative size, positional relationship between them are merely exemplary, in practice may be due to system
It makes tolerance or technical restriction and is deviated, and those skilled in the art may be additionally designed as required with not similar shape
Shape, size, the regions/layers of relative position.
The process of persulfate advanced oxidation is over cure acid group (S2O8 2-) with the mixing of Zero-valent Iron, can divide at normal temperature
It solves persulfate and generates potentiometric titrations (SO4 -) and sulfate radical (SO4 2-), and then such as by many known organic compounds
Carboxylic acid, alcohol, esters are oxidized to inorganic states.The ability with removal persistent organic pollutants is reacted, in dyeing waste water, oil-containing
Have in the wastewater treatments such as waste water, phenol wastewater, coking wastewater, nitrobenzene-containing waste water, diphenylamines waste water and is widely applied very much.
Zero-valent Iron can convert to form ferrous ion in the case where aerobic or anaerobic is adjusted, and principle can pass through following formula table
It reaches:
Aerobic conditions: Fe0+H2O+1/2O2→Fe2++2OH-
Oxygen free condition:: Fe0+2H2O→Fe2++2OH-+H2
Then it is reacted with the over cure acid group in persulfate, produces potentiometric titrations, principle can be expressed by following formula:
Fe2++S2O8 2-→Fe3++SO4 -(free radical)+SO4 2-
The exactly presence of potentiometric titrations makes it have strong oxidability.But it is advanced currently based on persulfate
Oxidation lacks the depth Wastewater Treatment Technology based on persulfate advanced oxidation only simply by persulfate advanced oxidation
Art lacks the depth coupling processing technology based on persulfate advanced oxidation, lack the Multistage wastewater of reliable depth coupling
Processing technique.
Based on this, the application improves existing persulfate advanced oxidation reaction, and depth has coupled persulfuric acid
Salt advanced oxidation reaction and membrane separation technique, by combining persulfate advanced oxidation reaction and membrane separation technique, and by film
Isolation technics is integrated in the same accommodating chamber that persulfate advanced oxidation reaction occurs, and then forms integrated wastewater treatment
Device, and then the secondary waste water processing integrated technique of reliable depth coupling is formd, substantially increase the effect of wastewater treatment
Rate, and degree of coupling is higher.
Fig. 1 shows the integrated waste-water treater of the application one aspect embodiment offer, as shown in Figure 1, comprising:
Device noumenon 1 has accommodating chamber；Persulfate solution and waste water to be processed are passed through the accommodating chamber by the first input device；Second
Input device, Xiang Suoshu accommodating chamber put into nulvalent iron particle；Mixer, mixing persulfate solution, the waste water to be processed and
The nulvalent iron particle；PH regulating apparatus adjusts the pH value of the reaction environment in the accommodating chamber in first time period
In the first soda acid range, so that the nulvalent iron particle is converted into ferrous ion, and then persulfate is activated, and first
The pH value that the reaction environment in the accommodating chamber is adjusted in second time period after period is in the second soda acid range, with
Generate iron hydroxide wadding body；Filtering film component including the filter membrane 8 being set in the accommodating chamber, and is collected and penetrates the filtering
The collector of the liquid of film 8, the filter membrane have several first ducts that the iron hydroxide wadding body can be prevented to penetrate；And
Nulvalent iron particle separator 21 is placed at the outlet at bottom of the accommodating chamber, is had less than the Zero-valent Iron partial size and can be passed through
Several second ducts of the iron hydroxide wadding body.
Integrated waste-water treater in present aspect, on the one hand due to UF membrane and persulfate advanced oxidation reaction collection
Integrally, persulfate advanced oxidation reaction formed free radical can oxidation of organic compounds, metal complex and inorganic matter, metal
Hydroxide wadding body is removed, these features can due to the effects of adsorbing, be complexed with co-precipitation while realizing multiple pollutant
The irreversible membrane fouling through filter membrane is greatly reduced, the stifled probability of filter membrane dirt is reduced, and filter membrane is in accommodating chamber, mixes
The disturbance of clutch bring can make the iron hydroxide wadding body gathered on filter membrane constantly disturb simultaneously, further prevent filter membrane
Dirt is stifled, compared to persulfate advanced oxidation reaction and UF membrane non-integral device, dramatically reduces what filter membrane dirt was blocked up
Phenomenon；On the other hand, Zero-valent Iron is in flow regime, and active site is timely updated, the more traditional heterogeneous over cure of reactivity
Hydrochlorate advanced oxidation improves；Further, zero-valent iron particle is disturbed in filter membrane surface, in conjunction with generated in-situ free-radical oxidation
Agent can play the role of online Membrane cleaning, and then further mitigate the burden of filter membrane, mitigate the stifled phenomenon of filter membrane dirt；In addition,
The present invention is dirty stifled due to being not easy, and can be used for the online wastewater treatment of serialization, and integrated apparatus can further reduce
Process costs, manufacturing cost and occupancy volume.
The application is using Zero-valent Iron as source of iron, and compared to investment ferrous salt, due to ferrous salt and ex situ generates divalent
Iron is directly dissolved when ferrous salt enters in solution, can not be disturbed in filter membrane surface, while directly being dissolved and can not be brought phase
The update at interface can not play the role of online Membrane cleaning, in addition, compared to ferrous oxide particle, since Zero-valent Iron is in acidity
Under the conditions of strong reducing property, Zero-valent Iron is dissolved in the speed of water faster, react more thorough, and ferrous oxide itself is not soluble in water,
Strong acid dissolution is needed, the difficulty of dissolution is larger, and solution rate is slower, is unable to satisfy timely updating and mending for ferrous iron particle concentration
It fills, reduces wastewater treatment speed.
In the embodiment shown in fig. 1, first input device includes: persulfate fluid reservoir 3, stores the persulfuric acid
Salting liquid；Waste water connecting pipeline 2 is connected to the waste water discharge opening of a production system；And premixed device 4, premix the persulfuric acid
Salting liquid and waste water to be processed, and the mixed solution after premix can be pumped into the accommodating chamber.The embodiment is directly by the present apparatus
It is connected to the waste water discharge opening of production system, and then continuous online wastewater treatment may be implemented.
In the unshowned embodiment of Fig. 1, first input device includes: persulfate fluid reservoir, stores the over cure
Acid salt solution；Waste water tank stores the waste water to be processed；And premixed device, premix the persulfate solution and to be processed useless
Mixed solution after premix can be pumped into the accommodating chamber by water.
According to the difference for the treatment of capacity, pump of different scales, such as micropump, peristaltic pump, plunger pump etc. can choose, this Shen
It please be without being limited thereto.
Mixer can be blade class mixer, be also possible to disturb to form stirring, example using the gas for being not involved in reaction
Such as aerator 16, in the embodiment, mixer include: aerator 16, the air pipe line being connected to the aerator 15 and
It is connected to air compressor 14 on air pipe line 15 perhaps air blower and then by extraneous air or the inertia of preparation
Gas (such as nitrogen) is pumped in accommodating chamber, and air or inert gas form several bubbles 23 in reaction solution, and then are formed
Stir bumpy weather.
Further, in order to improve the efficiency of persulfate advanced oxidation reaction, first input device further comprises: sun
Ion fluid reservoir, and the premixed device pipeline connection, and store ferrous ion, ruthenium ion, cerium ion, cobalt ions, manganese from
At least one of son, vanadium ion and nickel ion.And then " complicated persulfate advanced oxidation reaction system " is formed, complicated mistake
Sulfate advanced oxidation reaction system further enhances the oxidation effectiveness of persulfate advanced oxidation reaction.
PH regulating apparatus can carry out the adjusting of pH value, reality as shown in Figure 1 by Plus acidic substance, alkaline matter
It applies in example, pH regulating apparatus includes: acid adding pipeline (not shown) plus alkali pipeline (not shown), is connected to acid adding
Acid solution tank 5 and corresponding kinetic pump (not shown) on pipeline are connected to the alkali liquid tank 6 and correspondence added on alkali pipeline
Kinetic pump (not shown), soda acid detector 7, be correspondingly connected with acid adding pipeline and plus alkali pipeline on flow controller
(not shown).
Filter membrane 8 in filtering film component can be ceramic membrane, have the aperture being sized, and ceramic membrane has resistance to height
A variety of outstanding material properties such as temperature, acid and alkali-resistance and high mechanical strength, in water treatment field using increasing.And with pottery
Porcelain film preparation technique it is continuous it is mature with it is perfect, preparation cost can also continue reduction, and ceramic membrane obtain more in water treatment field
Big development.Ceramic membrane can remove colloidal suspended substance and larger molecular organics etc., to guarantee the stabilization of effluent quality.In oil gas
Field, ceramic membrane can also have preferable removal effect to oil wastewater.
Ceramic membrane is easy blocking, and the iron hydroxide wadding body formed in present aspect embodiment can reduce cross-film pressure drop, increases
Membrane flux, iron hydroxide wadding body can be complexed, the heavy metal ion in absorption effluent, silicon and phosphorus etc., while mixer can not
Disconnected disturbance accumulates in the wadding body on ceramic membrane, further prevents blocking；Further, zero-valent iron particle is disturbed in filter membrane surface
It is dynamic, online Membrane cleaning can be played the role of in conjunction with generated in-situ free-radical oxidation agent, and then further mitigate the burden of filter membrane,
Mitigate the stifled phenomenon of filter membrane dirt.
Ceramic membrane can be fixed by film frame 9, ceramic membrane can be tilted fixed or vertically fixed, the present invention is not
It is limited to this.
Filtering film component further includes outlet pipeline 10, pressure gauge 11, vacuum pump 12 and collector 13, and vacuum pump 12 is created
Suction force, so that the penetration by liquid filter membrane 8 in accommodating chamber, iron hydroxide wadding body is stopped by filter membrane 8, and filter membrane
8 itself have sewage water filtration ability, cooperate with iron hydroxide wadding body, achieve the purpose that two-stage advanced treating.Test proves, our
The device in face, transmembrane pressure reduces 50%, and the long period stablizes；Membrane flux can be improved；COD removal rate can reach
50% or more, turbidity is lower than 1NTU.
In one embodiment, it is provided with heat exchanger (not shown) on the lateral wall or inner sidewall of device noumenon 1, is used for
The temperature of entire reaction system is adjusted, so that reaction can carry out in preferable temperature.
Further, in some embodiments, in order to collect the hydrogen-oxygen after the heavy metal ion in absorption effluent, silicon and phosphorus
Change iron wadding body, Fig. 1 shows the embodiment that the present apparatus further comprises a blowdown component, and in the embodiment, blowdown component includes:
Dredge pump 22 and sludge collector, the sludge collector is for collecting the iron hydroxide wadding body settled in the accommodating chamber and dirt
Contaminate object.
Sludge collector is a deposition bucket 20, and deposition bucket 20 is in back taper, can make iron hydroxide wadding body in weight in this way
It can focus at entrance under the action of power, and then be pumped out outside accommodating chamber by dredge pump 22.
In one embodiment, the demarcation plate 21 that accommodating chamber bottom section is arranged in for one in nulvalent iron particle separator, described zero
For the partial size of valence iron within the scope of 50-500um, the partial size of the range, which has, forms ferrous fireballing advantage, and can
By the second duct (such as 300-400 mesh) of demarcation plate by specifically can according to need setting certainly, the application does not have this
Body limitation, as long as can satisfy the requirement of the application.
In use, put into respectively into accommodating chamber by the first input device and the second input device needs first the device
Persulfate solution and waste water to be processed are wanted, while putting into nulvalent iron particle, Zero-valent Iron is in flow regime, and active site obtains
It timely updates, the more traditional heterogeneous persulfate advanced oxidation of reactivity improves, after Zero-valent Iron forms ferrous iron, in ferrous iron
Under the catalytic action of ion, persulfate, which decomposes, generates potentiometric titrations, and after mixing with waste water, potentiometric titrations will be dirty
Hardly degraded organic substance in water/waste water destroys, or complexing that heavy metal is formed with organic matter, organic phosphorus and organo-arsenic are broken
Bad, simultaneously, ferrous ion converts during generating potentiometric titrations and forms ferric ion, at one section to be mixed
Between after, then by pH regulating apparatus condition pH value to 6-7.5, (sectional interest needs to be adjusted to 9.5-10.5, Neng Gouti
For enough OH-Until), and then enough OH are provided-, it is reacted with the ferric iron in solution and generates iron hydroxide wadding body, complexing,
Heavy metal ion, silicon and phosphorus in absorption effluent etc., due to entirely reacting in same accommodating chamber, iron hydroxide wadding body due to
Density is smaller, and interparticle gap is larger, on the one hand reduces cross-film pressure drop, improves membrane flux, iron particle is in ceramic membrane table
Face disturbance and generated in-situ free-radical oxidation agent can play the role of online Membrane cleaning, can effectively mitigate the dirt of filter membrane
Stifled, on the other hand persistent disturbances under the action of mixer, further reduced a possibility that dirty stifled, and then form persulfuric acid
The secondary waste water processing technique that salt advanced oxidation reaction is coupled with the depth of membrane separation technique.Using Zero-valent Iron as source of iron, phase
Compared with investment ferrous salt, due to ferrous salt and ex situ generates ferrous iron, directly dissolves when ferrous salt enters in solution, can not
It is disturbed in filter membrane surface, while directly dissolution and the update that phase interface can not be brought, online Membrane cleaning can not be played the role of,
In addition, due to the strong reducing property of Zero-valent Iron in acid condition, Zero-valent Iron is dissolved in the speed of water compared to ferrous oxide particle
Faster, react more thorough, and ferrous oxide itself is not soluble in water, needs strong acid dissolution, and the difficulty of dissolution is larger, solution rate compared with
Slowly, it is unable to satisfy timely updating and supplementing for ferrous iron particle concentration, reduces wastewater treatment speed.
Identical reason based on the above embodiment, second aspect of the present invention provide a kind of integrated wastewater treatment method, tool
Body is as shown in Figure 2, comprising:
S100: by mixed solution and nulvalent iron particle the investment wastewater treatment dress of persulfate solution and waste water to be processed
In the accommodating chamber set；
S200: persulfate solution, the waste water to be processed and the nulvalent iron particle in the accommodating chamber are mixed；
S300: the pH value that the reaction environment in the accommodating chamber is adjusted in first time period is in the first soda acid model
It encloses, so that the nulvalent iron particle is converted into ferrous ion, and then activates persulfate；
S400: the pH value of the reaction environment in the accommodating chamber is adjusted in second time period after the first period of time
In the second soda acid range, to generate iron hydroxide wadding body；
S500: by collected at suction through the liquid for the filter membrane being set in the accommodating chamber, wherein the filter membrane
With several first ducts that the iron hydroxide wadding body can be prevented to penetrate.
Wherein, nulvalent iron particle separator, the nulvalent iron particle separation are provided at the outlet at bottom of the accommodating chamber
Device has less than the Zero-valent Iron partial size and can pass through several second ducts of the iron hydroxide wadding body.
The integrated wastewater treatment method that present aspect provides, by combining persulfate advanced oxidation reaction and UF membrane skill
Art, and membrane separation technique is integrated in the same accommodating chamber that persulfate advanced oxidation reaction occurs, and then form one
Body wastewater treatment equipment.One aspect of the present invention is since UF membrane and persulfate advanced oxidation reaction are integrated, persulfuric acid
Salt advanced oxidation reaction formed free radical can oxidation of organic compounds, metal complex and inorganic matter, metal hydroxides wadding body
Due to the effects of adsorbing, be complexed with co-precipitation, removed while realizing multiple pollutant, these features can greatly reduce transmission
The irreversible membrane fouling of filter membrane reduces the stifled probability of filter membrane dirt, and filter membrane is in accommodating chamber, and mixer bring is disturbed
Kinetic energy is enough while the iron hydroxide wadding body gathered on filter membrane is constantly disturbed, and further prevents filter membrane dirt stifled, compared to
Persulfate advanced oxidation reaction and UF membrane non-integral device dramatically reduce the stifled phenomenon of filter membrane dirt；Another party
Face, Zero-valent Iron are in flow regime, and active site is timely updated, the more traditional heterogeneous persulfate advanced oxidation of reactivity
It improves；Further, zero-valent iron particle is disturbed in filter membrane surface, can be played online in conjunction with generated in-situ free-radical oxidation agent
Membrane cleaning effect, and then further mitigate the burden of filter membrane, mitigate the stifled phenomenon of filter membrane dirt；In addition, the present invention is not due to
It is easily dirty stifled, it can be used for the online wastewater treatment of serialization, and integrated apparatus can further reduce process costs, manufacture
Cost and occupancy volume.
The application is using Zero-valent Iron as source of iron, and compared to investment ferrous salt, due to ferrous salt and ex situ generates divalent
Iron is directly dissolved when ferrous salt enters in solution, can not be disturbed in filter membrane surface, while directly being dissolved and can not be brought phase
The update at interface can not play the role of online Membrane cleaning, in addition, compared to ferrous oxide particle, since Zero-valent Iron is in acidity
Under the conditions of strong reducing property, Zero-valent Iron is dissolved in the speed of water faster, react more thorough, and ferrous oxide itself is not soluble in water,
Strong acid dissolution is needed, the difficulty of dissolution is larger, and solution rate is slower, is unable to satisfy timely updating and mending for ferrous iron particle concentration
It fills, reduces wastewater treatment speed.
Based on identical reason, the above method further include:
S001: the persulfate solution and waste water to be processed are premixed；
In the embodiment, step S100 includes: described in the mixed solution by the nulvalent iron particle and after premixing is pumped into
Accommodating chamber.
Wastewater treatment method in present aspect, can be in conjunction with persulfate advanced oxidation reaction and membrane separation technique, can also
To combine persulfate advanced oxidation reaction and membrane separation technique, in persulfate advanced oxidation reaction, it is based on implementation above-mentioned
Example could be aware that, the above method further include:
By at least one of ferrous ion, ruthenium ion, cerium ion, cobalt ions, manganese ion, vanadium ion and nickel ion
It is passed through the accommodating chamber.
In addition, in some embodiments, in order to collect the iron hydroxide after the heavy metal ion in absorption effluent, silicon and phosphorus
Wadding body, the wastewater treatment method of present aspect further include:
S600: the iron hydroxide wadding body settled in the accommodating chamber is collected.
Another aspect of the invention provides a kind of integrated waste water treatment system comprising above-mentioned integrated wastewater treatment dress
Set, and with waste water or sewage discharger, the waste water discharge opening of waste water or sewage discharger fills with integrated wastewater treatment
Connection is set, and then realizes online waste water continuous treatment.
Waste water discharging device can be a sub-device in complete industrial production system, such as the printing and dyeing of printing system
Waste water discharging device simplifies waste water in this way that is, integrated waste-water treater is directly incorporated in production technology
The process flow of processing.
The application the above embodiments are described in detail below with reference to several concrete scenes.
Scene one: a kind of organism P wastewater, COD 1120mg/L, total phosphorus 89mg/l.Configure persulfate advanced oxidation
Reagent, wherein the amount of persulfate is 800-1000mg/L, and the input amount of iron is 5g/L, and after mixing 30 minutes, adjusting pH is
6.5-7.5 starts ceramic membrane filter, and water outlet COD is reduced within 300mg/L, and total phosphorus is lower than 10mg/l.
Scene two: a kind of electroplating wastewater, COD 500mg/L, copper ion concentration 30mg/l, nickel ion content are 10mg/
l.Persulfate advanced oxidation reagent is configured, wherein the amount of persulfate is 250-500mg/L, and the input amount of iron is 3g/L, instead
It answers 15 minutes, the pH of waste water is increased to 6.5-7.5, and pH is adjusted to 9.5-10.5；Start ceramic membrane filter, water outlet COD is reduced to
Within 80mg/L, copper ion concentration is lower than 0.3mg/l, and nickel ion concentration is lower than 0.1mg/l.
Scene three: a kind of dyeing waste water, COD 320mg/L.Persulfate advanced oxidation reagent is configured, wherein persulfuric acid
The amount of salt is 150-400mg/L, and the input amount of iron is 3g/L, is reacted 15 minutes, the pH of waste water is increased to 6.5-7.5；Starting pottery
The filtering of porcelain film, water outlet COD are reduced within 80mg/L.
It could be aware that by above-mentioned scene, integrated waste-water treater provided by the invention, method and system are not easy to block up
While plug, waste water treatment efficiency can be further increased, COD removal rate can reach 70% or more, have important guidance
Meaning.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to this hair
The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.
Claims (10)
1. a kind of integrated waste-water treater characterized by comprising
Device noumenon has accommodating chamber；
Persulfate solution and waste water to be processed are passed through the accommodating chamber by the first input device；
Second input device, Xiang Suoshu accommodating chamber put into nulvalent iron particle；
Mixer, mixing persulfate solution, the waste water to be processed and the nulvalent iron particle；
PH regulating apparatus, the pH value that the reaction environment in the accommodating chamber is adjusted in first time period are in the first soda acid
Range so that the nulvalent iron particle is converted into ferrous ion, and then activates persulfate, and after the first period of time
The pH value that the reaction environment in the accommodating chamber is adjusted in second time period is in the second soda acid range, to generate iron hydroxide
Wadding body；
Filtering film component including the filter membrane being set in the accommodating chamber, and collects the collection of the liquid through the filter membrane
Device, the filter membrane have several first ducts that the iron hydroxide wadding body can be prevented to penetrate；And
Nulvalent iron particle separator is placed at the outlet at bottom of the accommodating chamber, is had less than the Zero-valent Iron partial size and can be led to
Cross several second ducts of the iron hydroxide wadding body.
2. integrated waste-water treater according to claim 1, which is characterized in that first input device includes:
Persulfate fluid reservoir stores the persulfate solution；
Waste water tank stores the waste water to be processed；And
Premixed device premixes the persulfate solution and waste water to be processed, and the mixed solution after premix can be pumped into the appearance
Receive chamber；Alternatively,
First input device includes:
Persulfate fluid reservoir stores the persulfate solution；
Waste water connecting pipeline is connected to the waste water discharge opening of a production system；And
Premixed device premixes the persulfate solution and waste water to be processed, and the mixed solution after premix can be pumped into the appearance
Receive chamber.
3. integrated waste-water treater according to claim 2, which is characterized in that first input device is further wrapped
It includes:
Cationic fluid reservoir, and the premixed device pipeline connection, and store ferrous ion, ruthenium ion, cerium ion, cobalt from
At least one of son, manganese ion, vanadium ion and nickel ion.
4. integrated waste-water treater according to claim 1, which is characterized in that the filter membrane is ceramic membrane.
5. integrated waste-water treater according to claim 1, which is characterized in that further include: blowdown component；
The blowdown component includes: dredge pump and sludge collector, and the sludge collector sinks for collecting in the accommodating chamber
The iron hydroxide wadding body and pollutant of drop.
6. a kind of integration wastewater treatment method characterized by comprising
By the receiving of persulfate solution and mixed solution and nulvalent iron particle the investment wastewater treatment equipment of waste water to be processed
In chamber；
Mix persulfate solution, the waste water to be processed and the nulvalent iron particle in the accommodating chamber；
The pH value that the reaction environment in the accommodating chamber is adjusted in first time period is in the first soda acid range, so that described
Nulvalent iron particle is converted into ferrous ion, and then activates persulfate；
The pH value that the reaction environment in the accommodating chamber is adjusted in second time period after the first period of time is in second
Soda acid range, to generate iron hydroxide wadding body；
By collected at suction through the liquid for the filter membrane being set in the accommodating chamber, wherein the filter membrane, which has, to be prevented
Several first ducts that the iron hydroxide wadding body penetrates；
Wherein, nulvalent iron particle separator, the nulvalent iron particle separator are provided at the outlet at bottom of the accommodating chamber
Have less than the Zero-valent Iron partial size and can be by several second ducts of the iron hydroxide wadding body.
7. integration wastewater treatment method according to claim 6, which is characterized in that further include:
Premix the persulfate solution and waste water to be processed；
Persulfate solution, the waste water to be processed and the nulvalent iron particle in the mixing accommodating chamber, comprising:
Mixed solution after the nulvalent iron particle and premix is pumped into the accommodating chamber.
8. integration wastewater treatment method according to claim 6, which is characterized in that further include:
Collect the iron hydroxide wadding body settled in the accommodating chamber.
9. integration wastewater treatment method according to claim 6, which is characterized in that further include:
At least one of ferrous ion, ruthenium ion, cerium ion, cobalt ions, manganese ion, vanadium ion and nickel ion are passed through
The accommodating chamber.
10. a kind of integration waste water treatment system, which is characterized in that including integration as described in any one in claim 1-5
Wastewater treatment equipment.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242014A (en) * | 2016-06-22 | 2016-12-21 | 湘潭大学 | A kind of persulfate activation method processed for waste water |
| CN107244774A (en) * | 2017-06-27 | 2017-10-13 | 广东工业大学 | A kind of purifier and its implementation |
| CN108249618A (en) * | 2018-01-18 | 2018-07-06 | 大唐环境产业集团股份有限公司 | A kind of method using nano zero valence iron and potassium peroxydisulfate processing desulfurization wastewater |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242014A (en) * | 2016-06-22 | 2016-12-21 | 湘潭大学 | A kind of persulfate activation method processed for waste water |
| CN107244774A (en) * | 2017-06-27 | 2017-10-13 | 广东工业大学 | A kind of purifier and its implementation |
| CN108249618A (en) * | 2018-01-18 | 2018-07-06 | 大唐环境产业集团股份有限公司 | A kind of method using nano zero valence iron and potassium peroxydisulfate processing desulfurization wastewater |
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