CN105541018B - A kind of processing method for removing heavy metals in industrial wastewater - Google Patents
A kind of processing method for removing heavy metals in industrial wastewater Download PDFInfo
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- CN105541018B CN105541018B CN201511013549.5A CN201511013549A CN105541018B CN 105541018 B CN105541018 B CN 105541018B CN 201511013549 A CN201511013549 A CN 201511013549A CN 105541018 B CN105541018 B CN 105541018B
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 77
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 22
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 239000002351 wastewater Substances 0.000 claims abstract description 48
- 238000006243 chemical reaction Methods 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 150000002500 ions Chemical class 0.000 claims abstract description 29
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 claims abstract description 17
- 235000018102 proteins Nutrition 0.000 claims abstract description 15
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 15
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 15
- 238000004062 sedimentation Methods 0.000 claims abstract description 14
- 235000018417 cysteine Nutrition 0.000 claims abstract description 13
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 claims abstract description 13
- 108091003079 Bovine Serum Albumin Proteins 0.000 claims abstract description 10
- 229940098773 bovine serum albumin Drugs 0.000 claims abstract description 10
- 238000005273 aeration Methods 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 claims abstract description 5
- 150000004696 coordination complex Chemical class 0.000 claims abstract description 5
- 230000001939 inductive effect Effects 0.000 claims abstract description 5
- 102000004196 processed proteins & peptides Human genes 0.000 claims abstract description 5
- 108090000765 processed proteins & peptides Proteins 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 24
- 238000000926 separation method Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 5
- 210000004369 blood Anatomy 0.000 claims description 4
- 239000008280 blood Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000005119 centrifugation Methods 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 2
- 239000013522 chelant Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 2
- 238000007670 refining Methods 0.000 abstract 1
- 238000009388 chemical precipitation Methods 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 238000005342 ion exchange Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 150000002894 organic compounds Chemical class 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 235000001014 amino acid Nutrition 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 108010088751 Albumins Proteins 0.000 description 1
- 102000009027 Albumins Human genes 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 102000034238 globular proteins Human genes 0.000 description 1
- 108091005896 globular proteins Proteins 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical group [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000010814 metallic waste Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/163—Nitrates
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a kind of processing method for removing heavy metals in industrial wastewater, waste water is handled by sump, coarse rack, primary sedimentation basin, pH value regulating reservoir, protein heavy metal ion chelatropic reaction tower, whizzer, aeration nitrification tank, biological denitrificaion pond, secondary sedimentation tank, water purifying tank successively.The system creativeness make use of one kind to be attached with the spherical carrier of cysteine (Cys) bovine serum albumin(BSA) as surface haptoreaction medium, when the waste water containing heavy metal is contacted with refining the state of water smoke with its surface, make the heavy metal ion in waste water that chelatropic reaction occur with cysteine and bovine serum albumin(BSA) by the inducing action of Analyses of High Affinity Binding Peptides, generate metal complex, the complex compound is not soluble in water, can be removed by centrifuging operation.Meanwhile protein carrier ball can be replaced as a kind of easy-consumed goods of low value according to using Expenditure Levels.
Description
Technical field
The present invention relates to a kind of processing method for removing heavy metals in industrial wastewater, the wastewater treatment belonged in environmental protection
Field.
Background technology
Heavy metal pollution refers to as the environmental pollution and ecological disruption caused by heavy metal and its compound, its extent of injury
Depending on heavy metal concentration and chemical form present in environment, food and organism.Heavy metal pollution is mainly manifested in water
In pollution, some is in air and solid waste.Heavy metal pollution is different from the pollution of other organic compounds, much
Organic compound can be purified by the physics of nature in itself, chemistry or biological effect, harmfulness is reduced or is eliminated；
And heavy metal has enriching, it is difficult to degrade in the environment.
In terms of environmental pollution, it is mercury, cadmium, lead and " metalloid " --- arsenic that heavy metal pollution is most representational
Heavy metal significant etc. bio-toxicity, these heavy metals can not be decomposed in water environment, and the mankind drink rear toxicity amplification, with water
In other toxin combinations can generate the bigger organic compound of toxicity.
At present, existing industrial wastewater heavy metal processing method includes：Chemical precipitation method, electrolysis, absorption method, UF membrane
Method, ion-exchange etc..
（1）Chemical precipitation method：Certain chemical substance is added in industrial wastewater, makes itself and some dissolved matters in waste water
React, generate difficulty soluble salt and precipitate, this method is referred to as chemical precipitation method.Traditional chemical precipitation method includes neutralizing
The precipitation method, sulphide precipitation and barium salt precipitation method etc..
（2）Electrolysis：Using the general principle of electrolysis, heavy metal ions in wastewater is set to occur respectively on anode and negative electrode
Redox reaction, make heavy metal accumulation, so that heavy metal in waste water is removed, and recyclable heavy metal.At electrolysis
Reason heavy metal wastewater thereby has the features such as reliable, heavy metal removing rate is high, recoverable.But due to heavy metal concentration it is low when
Power consumption is big, cost of investment is high, and electrolysis is only suitable for handling high-concentration heavy metal waste water.
（3）Absorption method：Absorption method is that have using a kind of method of adsorbent absorption heavy metal in waste water, traditional adsorbent
The natural materials such as activated carbon, zeolite, clay mineral.The adsorption capacity of activated carbon is strong, and heavy metal clearance is high, but price is held high
Expensive, service life is short.Found that mineral material had very strong adsorption capacity, wherein natural zeolite adsorption capacity most in the last few years
By force, and earliest it is used for the mineral material of heavy metal containing wastewater treatment.
（4）Membrane separation process：Membrane separation process is to utilize a kind of special pellicle, in the presence of ambient pressure, is not changed
The chemical form of solution makes the method that solute and solvent are separated and concentrated.Phase does not occur during the course of the reaction for membrane separation technique
Change, separative efficiency is high, operates and easy to maintenance, and separation and concentration are carried out simultaneously, recyclable valuable heavy metal.Common
Membrane technology has micro-filtration, ultrafiltration, nanofiltration, counter-infiltration, electrodialysis, liquid film etc..
（5）Ion-exchange：Ion-exchange processing heavy metal wastewater thereby be using on ion exchange resin it is commutative from
With heavy metal ion exchange reaction occurs for son, so as to remove the method for heavy metal ions in wastewater.Ion exchange technique removes useless
Heavy metal in water, heavy metal ion in water outlet after concentration of heavy metal ion is handled far below chemical precipitation method in water outlet after purification
Concentration, pass through the solution after reclaiming, it is possible to achieve the recovery of heavy metal.Ion exchange resin performance heavy metal ion
Removal effect have considerable influence.
Because above-mentioned traditional treatment method has the shortcomings of cost height, technical sophistication, unstable treatment effect, therefore, have
Necessity breaks away from existing treatment technology thinking, hews out the new way of processing industrial wastewater heavy metal, and then develops a kind of brand-new
The industrial wastewater heavy metal treatment technology of form.
The content of the invention
To solve the deficiencies in the prior art, the invention provides a kind of processing for removing heavy metals in industrial wastewater
Method, the industrial wastewater containing heavy metal enter sump by waste line, carry out centralized collection and preliminarily stabilised regulation herein,
The outlet of sump connects coarse rack by waste line, and the major diameter solid matter in industrial wastewater, coarse rack are removed at this
Outlet primary sedimentation basin, in this insoluble matter in further removing waste water, primary sedimentation basin are connected by waste line
Outlet connects pH value regulating reservoir by waste line, pH value of waste water is adjusted into about 6.5 ~ 8.0 herein, the outlet of pH value regulating reservoir
Protein-heavy metal ion chelatropic reaction tower, the outlet of protein-heavy metal ion chelatropic reaction tower are connected by waste line
Whizzer is connected by waste line, processing is centrifuged in waste water herein, to realize the separation of suspended things and waste water,
The heavy metal sewage sludge outward transport processing discharged in operation is centrifuged, the outlet that the waste water after the completion of separation is centrifuged device passes through
Waste line connection aeration nitrification tank, herein by aerobic aeration process, makes the various nitrogen substances in waste water be converted into nitre
Hydrochlorate nitrogen, the outlet for being aerated nitrification tank connects biological denitrificaion pond by waste line, by bioactivity course of reaction, by waste water
In nitrate nitrogen decomposition and inversion, so as to remove nitrate nitrogen, the outlet in biological denitrificaion pond is sunk by waste line connecting secondary
Shallow lake pond, remaining insoluble matter in waste water is all removed at this, the outlet of secondary sedimentation tank connects water purification by waste line
Pond, the outlet by water purifying tank will arrange outside the purification water outlet after processing；Wherein, protein-heavy metal ion chelatropic reaction tower top
Portion is equipped with inlet valve, and is connected with shunt catheter, and current are divided into five branch roads by shunt catheter, and its end is connected with five mists
Change shower nozzle, filled 11 layers of protein carrier ball in the middle part of reaction tower, cysteine and cow's serum are attached with protein carrier ball
The mixture of albumin, reaction tower bottom are equipped with flowing water Valve, and reaction tower lower left quarter and upper right quarter are respectively equipped with a fan access panel
Mouthful；The inlet valve that industrial wastewater after pH value regulation processing passes through protein-heavy metal ion chelatropic reaction top of tower
Into inside reaction tower, after shunt catheter and atomizer, it is sprayed onto with the state of water mists on protein carrier ball, with
The cysteine and bovine serum albumin(BSA) of its surface attachment are in contact, and are made by the inducing action of Analyses of High Affinity Binding Peptides in waste water
With cysteine and bovine serum albumin(BSA) chelatropic reaction occurs for heavy metal ion, generates metal complex, and the complex compound does not dissolve in
Water, it is scattered in the form of suspended things in waste water, and reaction tower is discharged by reacting the flowing water Valve of tower bottom with waste water, is entered
Whizzer, finally removed after centrifugal treating in the form of sludge containing heavy metal from waste water.
Further, protein-heavy metal ion chelatropic reaction tower uses hard stainless steel, and outer layer covers have waterproof guarantor
Adiabator, its tower body dischargeable capacity are 75m3, the spray angle of atomizer is 45 ~ 90 °, a diameter of 7.0 ~ 30 μ of atomizing particle
M, normal work hydraulic pressure are 30 ~ 90kg.
Bovine serum albumin(BSA), its molecule are about 66000 by 583 Amino acid profiles, molecular weight, are included in its molecular structure
17 pairs of disulfide bond.
The advantage of the invention is that：
（1）This method has broken away from existing industrial wastewater heavy metal purified treatment principle, and creative make use of is a kind of attached
The spherical carrier of cysteine (Cys) bovine serum albumin(BSA) as surface haptoreaction medium, when useless containing heavy metal
When water contacts to refine the state of water smoke with its surface, the heavy metal ion in waste water is made by the inducing action of Analyses of High Affinity Binding Peptides
Chelatropic reaction occurs with cysteine (Cys) bovine serum albumin(BSA), generates metal complex, the complex compound is not soluble in water, can lead to
Centrifugation operation is crossed to be removed.Its removal efficiency of heavy metals is up to 98.2%
（2）This method employs the design of globular protein matter carrier, improves polymerisation efficiency, improves whole system
Disposal ability；Meanwhile protein carrier ball can be replaced according to using Expenditure Levels, be replaced as a kind of easy-consumed goods of low value
Change into low.
（3）This method employs the means of protein chelating heavy metal ion, without using any toxic chemical substance, so that
Eliminate the risk for introducing the pollutant new, harm is bigger.
（4）The principle of the invention is simple and easy, and design and construction cost is relatively low, and treatment effect is preferable, operation expense
It is very low, be advantageous to a wide range of popularization and application.
Brief description of the drawings
Fig. 1 is the equipment schematic diagram of the present invention.
In figure：1- sumps, 2- coarse racks, 3- primary sedimentation basins, 4-pH values regulating reservoir, 5- protein-heavy metal ion
Chelatropic reaction tower, 6- whizzers, 7- aerations nitrification tank, 8- biological denitrificaions pond, 9- secondary sedimentation tanks, 10- water purifying tanks
Fig. 2 is the schematic diagram of protein-heavy metal ion chelatropic reaction tower.
51- inlet valves, 52- shunt catheters, 53- atomizers, 54- protein carriers ball, 55- overhauls windows, 56- go out
Penstock.
Embodiment
The processing method of removal heavy metals in industrial wastewater as shown in Figure 1, the industrial wastewater containing heavy metal pass through waste water
Pipeline enters sump 1, carries out centralized collection and preliminarily stabilised regulation herein, the outlet of sump 1 is connected by waste line
Coarse rack 2, the major diameter solid matter in industrial wastewater is removed at this, and the outlet of coarse rack 2 is connected once by waste line
Sedimentation basin 3, in this insoluble matter in further removing waste water, the outlet of primary sedimentation basin 3 connects pH value by waste line
Regulating reservoir 4, waste water carry out neutralisation treatment herein and carry out the accurate adjustment of pH value, and the pH value range of the water outlet of pH value regulating reservoir 4 is
6.5 ~ 8.0, to meet that the water pH value that enters of protein-heavy metal ion chelatropic reaction tower 5 requires that the outlet of pH value regulating reservoir 4 leads to
Cross waste line connection protein-heavy metal ion chelatropic reaction tower 5, the outlet of protein-heavy metal ion chelatropic reaction tower 5
Whizzer 6 is connected by waste line, processing is centrifuged in waste water herein, to realize point of suspended things and waste water
From the heavy metal sewage sludge outward transport processing discharged in centrifugation operation, the waste water after the completion of separation is centrifuged the outlet of device 6
Aeration nitrification tank 7 is connected by waste line, herein by aerobic aeration process, the various nitrogen substances in waste water is converted
For nitrate nitrogen, the outlet for being aerated nitrification tank 7 connects biological denitrificaion pond 8 by waste line, and its effect is to pass through bioactivity
Course of reaction, by the nitrate nitrogen decomposition and inversion in waste water, so as to remove nitrate nitrogen, the outlet in biological denitrificaion pond 8, which passes through, gives up
Water pipeline connecting secondary sedimentation basin 9, remaining insoluble matter in waste water is all removed at this, the outlet of secondary sedimentation tank 9 leads to
Cross waste line connection water purifying tank 10, the outlet of water purifying tank 10 is by waste line by the purification water outlet after the system is handled
Outer row；Wherein, protein-heavy metal ion chelatropic reaction tower 5 uses hard stainless steel, and its tower body dischargeable capacity is
75m3, outer layer covers have water-proof heat-insulation material, inlet valve 51 are housed at the top of reaction tower, and are connected with shunt catheter 52, shunt
Current are divided into five branch roads by conduit 52, and its end is connected with five atomizers 53, the spray angle of atomizer 53 for 45 ~
90 °, a diameter of 7.0 ~ 30 μm of atomizing particle, normal work hydraulic pressure is 30 ~ 90kg, and 11 layers of protein load have been filled in the middle part of reaction tower
Body ball 54, the mixture for being attached with cysteine (Cys) and bovine serum albumin(BSA) on protein carrier ball 54, bovine serum albumin
White molecule is about 66000 by 583 Amino acid profiles, molecular weight, and 17 pairs of disulfide bond, its near-spherical are included in its molecular structure
Higher structure can be divided into 3 domains, and reaction tower bottom is equipped with flowing water Valve 56, and reaction tower lower left quarter and upper right quarter are set respectively
There is a fan overhauls window 55；After pH value regulation processing（PH value is 6.5 ~ 8.0 after processing）Industrial wastewater by protein-
The inlet valve 51 at the top of heavy metal ion chelatropic reaction tower 5 enters inside reaction tower, by shunt catheter 52 and atomizer
Afterwards 53, it is sprayed onto with the state of water mists on protein carrier ball 54, it is pure with cysteine (Cys) ox blood of its surface attachment
Albumen is in contact, and heavy metal ion and cysteine (Cys) ox blood in waste water are made by the inducing action of Analyses of High Affinity Binding Peptides
Chelatropic reaction occurs for pure albumen, generates metal complex, the complex compound is not soluble in water, and waste water is scattered in the form of suspended things
In, and reaction tower is discharged by reacting the flowing water Valve 56 of tower bottom with waste water, into whizzer 6, by centrifugal treating
Finally removed afterwards in the form of sludge containing heavy metal from waste water；Wherein, protein-heavy metal ion chelatropic reaction tower 5
Lower left quarter and upper right quarter be respectively equipped with a fan overhauls window 55, staff can by the window to filled in reaction tower 11
Layer protein carrier ball 54, shunt catheter 52 and atomizer 53 carry out inspection operation.
Industrial wastewater after being handled by the system, its removal efficiency of heavy metals is up to 98.2%.
Claims (2)
1. a kind of processing method for removing heavy metals in industrial wastewater, it is characterised in that the industrial wastewater containing heavy metal passes through useless
Water pipeline enters sump, carries out centralized collection and preliminarily stabilised regulation herein, the outlet of sump is connected by waste line
Coarse rack, the major diameter solid matter in industrial wastewater is removed at this, and the outlet of coarse rack is once sunk by waste line connection
Shallow lake pond, in this insoluble matter in further removing waste water, the outlet of primary sedimentation basin connects pH value by waste line and adjusted
Pond, pH value of waste water is adjusted to 6.5 ~ 8.0 herein, the outlet of pH value regulating reservoir connects protein-heavy metal by waste line
Ion chelating reaction tower, the outlet of protein-heavy metal ion chelatropic reaction tower connect whizzer by waste line, given up
Processing is centrifuged in water herein, to realize the separation of suspended things and waste water, is discharged in centrifugation operation heavy metal-polluted
Mud outward transport is handled, and the outlet that the waste water after the completion of separation is centrifuged device connects aeration nitrification tank by waste line, herein
By aerobic aeration process, the various nitrogen substances in waste water are made to be converted into nitrate nitrogen, the outlet for being aerated nitrification tank passes through
Waste line connection biological denitrificaion pond, by bioactivity course of reaction, by the nitrate nitrogen decomposition and inversion in waste water, so as to go
Except nitrate nitrogen, the outlet in biological denitrificaion pond, will be remaining insoluble in waste water at this by waste line connecting secondary sedimentation basin
Material all removes, and the outlet of secondary sedimentation tank connects water purifying tank by waste line, after being handled by the outlet of water purifying tank
Purification water outlet outside arrange；Wherein, protein-heavy metal ion chelatropic reaction top of tower is equipped with inlet valve, and is connected with shunting
Current are divided into five branch roads by conduit, shunt catheter, and its end is connected with five atomizers, 11 layers have been filled in the middle part of reaction tower
Protein carrier ball, the mixture of cysteine and bovine serum albumin(BSA), reaction tower bottom dress are attached with protein carrier ball
There is flowing water Valve, reaction tower lower left quarter and upper right quarter are respectively equipped with a fan overhauls window；Industry after pH value regulation processing
Waste water is entered inside reaction tower by the inlet valve of protein-heavy metal ion chelatropic reaction top of tower, by shunt catheter
After atomizer, it is sprayed onto with the state of water mists on protein carrier ball, cysteine and ox blood with its surface attachment
Pure albumen is in contact, and heavy metal ion and cysteine and ox blood in waste water are made by the inducing action of Analyses of High Affinity Binding Peptides
Chelatropic reaction occurs for pure albumen, generates metal complex, the complex compound is not soluble in water, and waste water is scattered in the form of suspended things
In, and reaction tower is discharged by reacting the flowing water Valve of tower bottom with waste water, into whizzer, after centrifugal treating most
Removed eventually in the form of sludge containing heavy metal from waste water.
2. the processing method according to claim 1 for removing heavy metals in industrial wastewater, it is characterised in that protein-weight
Metal ion-chelant reaction tower uses hard stainless steel, and outer layer covers have water-proof heat-insulation material, and its tower body dischargeable capacity is
75m3, the spray angle of atomizer is 45 ~ 90 °, and a diameter of 7.0 ~ 30 μm of atomizing particle, normal work hydraulic pressure is 30 ~ 90kg.
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| CN107487963B (en) | 2020-11-06 |
| CN107487963A (en) | 2017-12-19 |
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