CN106315947A - Processing system and processing technology for industrial sewage containing heavy metal - Google Patents
Processing system and processing technology for industrial sewage containing heavy metal Download PDFInfo
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- CN106315947A CN106315947A CN201610877276.7A CN201610877276A CN106315947A CN 106315947 A CN106315947 A CN 106315947A CN 201610877276 A CN201610877276 A CN 201610877276A CN 106315947 A CN106315947 A CN 106315947A
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- storage tank
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- 239000010865 sewage Substances 0.000 title claims abstract description 48
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 34
- 238000005516 engineering process Methods 0.000 title abstract description 5
- PPQREHKVAOVYBT-UHFFFAOYSA-H dialuminum;tricarbonate Chemical compound [Al+3].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O PPQREHKVAOVYBT-UHFFFAOYSA-H 0.000 claims abstract description 38
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000003860 storage Methods 0.000 claims abstract description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 9
- 230000033228 biological regulation Effects 0.000 claims abstract description 7
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000001556 precipitation Methods 0.000 claims description 27
- 230000008569 process Effects 0.000 claims description 27
- 150000002500 ions Chemical class 0.000 claims description 20
- 238000001179 sorption measurement Methods 0.000 claims description 13
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 238000000909 electrodialysis Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 11
- 238000009300 dissolved air flotation Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 229910021645 metal ion Inorganic materials 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000002244 precipitate Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 5
- 239000012065 filter cake Substances 0.000 claims description 5
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 238000005189 flocculation Methods 0.000 claims description 4
- 230000016615 flocculation Effects 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- -1 poly-propionyl Amine Chemical class 0.000 claims 1
- 239000013049 sediment Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 14
- 238000000926 separation method Methods 0.000 abstract description 8
- 239000003463 adsorbent Substances 0.000 abstract description 4
- 238000005202 decontamination Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 1
- 229940118662 aluminum carbonate Drugs 0.000 abstract 1
- 230000003588 decontaminative effect Effects 0.000 abstract 1
- 230000000249 desinfective effect Effects 0.000 abstract 1
- 238000005370 electroosmosis Methods 0.000 abstract 1
- 238000005188 flotation Methods 0.000 abstract 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 description 11
- 238000005868 electrolysis reaction Methods 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000005685 electric field effect Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 206010003210 Arteriosclerosis Diseases 0.000 description 1
- 208000006820 Arthralgia Diseases 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010061619 Deformity Diseases 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 201000005569 Gout Diseases 0.000 description 1
- 206010053759 Growth retardation Diseases 0.000 description 1
- 206010027439 Metal poisoning Diseases 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 208000011775 arteriosclerosis disease Diseases 0.000 description 1
- 230000009286 beneficial 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
- 238000005341 cation exchange Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 231100000001 growth retardation Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 208000008127 lead poisoning Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
-
- 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
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/46115—Electrolytic cell with membranes or diaphragms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- 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
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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
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)
- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a processing system and a processing technology for industrial sewage containing heavy metal. The processing system device comprises a reaction system, a later period filtering system, filter presses and a chemical liquid storage tank, wherein the reaction system comprises an air flotation separation tank, a first-level sedimentation tank, a regulation reaction tank, a second-level sedimentation tank and a neutralizing tower in sequence; the later period filtering system comprises a ceramsite activated carbon adsorbent bed, electroosmosis, zwitterion mixed resin and an ultraviolet ray disinfecting tower in sequence; two filter presses are arranged; the chemical liquid storage tank comprises an aluminum carbonate storage tank, a polyaluminum ferric chloride storage tank, a sodium hydroxide storage tank, a poly propanamide storage tank and a hypochlorous storage tank. The processing technology comprises the following steps: sewage collection, reaction between sewage and various liquid storage tank chemical materials, later period filtering and ultraviolet ray disinfection. According to the system, through the set of various devices, the sewage containing heavy metal can be more systematically and comprehensively subjected to decontamination processing.
Description
Technical field
The present invention relates to a kind of Waste Water Treatment, a kind of to what the sewage containing heavy industries processed be
System, and provide process technique.
Background technology
Heavy metal refers to that proportion is more than the metal of 4 or 5, there are about 45 kinds, common heavy metal pollution, be primarily referred to as hydrargyrum, lead,
The environmental pollution of the significant heavy metals of bio-toxicity such as cadmium, chromium and arsenic, also include having certain toxicity heavy metal such as zinc,
Copper, cobalt, nickel, stannum, vanadium etc..Many production processes in the industry such as mining and metallurgy, machine-building, chemical industry, electronics, instrument all produce
Heavy metal wastewater thereby, these waste water drastically influence the healthy or even life of child and adult, if as human body intake of too much
Molybdenum element can cause gout sample syndrome, arthralgia and deformity, compromised kidneys, and have growth retardation, arteriosclerosis, knot
The diseases such as base of a fruit tissue degeneratiaon.Currently, children's lead poisoning, the events such as heavy metal causes fetal anomaly, arseniasis also occur repeatedly, and make weight
Metallic pollution becomes the great environmental problem being related to human health and life.
At present, the processing method to heavy metal-containing waste water substantially can be divided into three major types: chemical method, physical treatment process and life
Thing facture.
Chemical method includes chemical precipitation method and electrolysis, is primarily adapted for use in the place containing higher concentration effluent containing heavy metal ions
Reason, chemical method is the main method processing heavy metal-containing waste water the most both at home and abroad.Made in waste water in dissolved form by chemical reaction
The heavy metal of state is changed into water-fast heavy metal compound, makes precipitate from aqueous solution through crossing filtration and separation
Removing, the sedimentation method often aqueous concentration does not reaches requirement, need to be for further processing, and otherwise can cause secondary pollution.Electrolysis is profit
With the electrochemical properties of metal, metal ion is separated from the solution of rather high concentration when electrolysis.This method is mainly used
In the process of electroplating wastewater, shortcoming be the concentration of heavy metal ion in water can not drop the lowest.
Physical treatment process mainly comprises solvent extraction and separation, ion exchange, membrane separation technique and absorption method.Solvent extraction
Method is to separate the method conventional with cleaning of substances.When making in this way, will select higher selective extractant, solvent exists
In loss in extraction process and regenerative process, energy resource consumption is big, so there is certain limitation.Ion exchange is heavy metal
Ion swaps with ion-exchanger, the method reaching to remove heavy metal ions in wastewater.Ion exchange is a kind of important
Electroplating Wastewater Treatment method, process capacity big, effluent quality is good, recyclable heavy metal resources, to environment non-secondary pollution, but
The oxidizable inefficacy of ion-exchanger, frequently, operating cost is high in regeneration.Membrane separation technique is to utilize a kind of special semipermeable membrane,
Under the effect of ambient pressure, do not change in solution on the basis of chemical form, solvent and solute are carried out the side separating or concentrating
Method, including electrodialysis and diaphragm electrolysis.Said method is in operation problems such as all encountering electrode polarization, fouling and corrosion.Inhale
Attached method is to utilize a kind of effective ways of heavy metal ion in porous solid material Adsorption water.The key technology of absorption method
Being the selection of adsorbent, conventional adsorbent is activated carbon.Activated carbon has the strongest absorbability, and clearance is high, but regenerating active carbon
Efficiency is low, and water quality treatment is extremely difficult to reuse requirement, and price application is restricted.
Biological treatment be made by microorganism or the flocculation of plant, absorb, accumulate, a huge sum of money in waste water is removed in the effect such as enrichment
The method belonged to.Biosorption process refers to the organism method by chemical action adsorbing metal ions.Owing to adsorption capacity is easily subject to
The impact of environmental factors, the absorption of microorganism heavy metal has selectivity, and heavy metal wastewater thereby often contains a multiple harmful huge sum of money
Belong to, affect the effect of microorganism, restricted etc. in application, so also needing to study the most further.
At present, China's technical problem in terms of heavy metal containing wastewater treatment is as follows: first sewage treatmentmethod is various, individual safety pin
Poor to property.Water processing establishment equipment is huge, and the water treatment system combined is complex.Also have some sewage disposals because of work
The imperfection of sequence, easily causes secondary pollution problem, and can not reuse, cause the waste of resource.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to change traditional sewage treatmentmethod, simplify processing system,
Refine technological process, concrete operation reduces cost, make the water quality after process can be with reuse, non-secondary pollution.
To achieve these goals, technical scheme is as follows: a kind of processing system containing heavy industries sewage,
It is characterized in that, described processing system device includes response system, later stage filtration system, pressure filter and chemistry fluid reservoir, described
Response system is followed successively by dissolved air flotation pond, first stage precipitation tank, regulation reaction tank, second-level settling pond and neutralizing tower, described later stage mistake
Filter system is followed successively by haydite activated carbon adsorption bed, electrodialysis, zwitterion hybrid resin, disinfection by ultraviolet light tower, described pressure filter
Be provided with two, be connected to the side of first stage precipitation tank and second-level settling pond, described chemistry fluid reservoir include aluminium carbonate storage tank,
PAFC storage tank, sodium hydroxide storage tank, poly-propionic acid amide. storage tank and hypochlorous acid storage tank.
Further, described process technique comprises the following steps that
Step one: the trade effluent containing heavy metal is collected collecting-tank；
Step 2: by induction system by the sewage transport in collecting-tank to dissolved air flotation pond, opens air stirring switch,
Air is discharged bottom-up, is subsequently adding aluminium carbonate and carries out normal-temperature reaction, and aluminium carbonate is met water and resolved into aluminium hydroxide and dioxy
Change carbon, after reaction 60-120min, make metal ion generate hydroxide precipitate with hydroxyl；
Step 3: by reacted for step 2 sewage transport to first stage precipitation tank, meanwhile, adds PAFC flocculation
Agent stirring 30-60min, is separated into sewage clear liquid and turbid liquid, is then transported to by turbid liquid after then staticly settling 1-180min
Pressure filter carries out filter pressing operation, is transported to clear liquid regulate reaction tank, and the solid filter cake collection that pressure filter operation produces processes, and produces
Raw clear liquid returns to first stage precipitation tank；
Step 4: the sewage that will be delivered to regulate reaction tank adds sodium hydroxide, opens ultrasound wave homogenizing instrument, makes hydroxyl
The uniformly reaction the most further of ion and sl. sol. heavy metal ion, reaction generates hydroxide precipitation；
Step 5: by the sewage transport of step 4 to second-level settling pond polyacrylamide solution, flocculate time of repose 30-
60min, makes precipitated metal thing and clear liquid precipitate and separate, and turbid liquid enters pressure filter and processes, now remaining denier metal in clear liquid
Ion；
Step 6: the clear liquid after step 5 being processed is transported to neutralizing tower, adds hypochloric acid water solution, flocculates through two steps
Precipitation；
Step 7: the water after step 6 is processed by haydite activated carbon adsorption bed, to micro heavy ion therein,
The further adsorption treatment of chloride ion, then by electrodialysis, zwitterion resin, make resistivity between 3-10M Ω cm；
Step 8: water step 7 processed is discharged after disinfection by ultraviolet light tower processes.
Further, described aluminium carbonate storage tank is connected with dissolved air flotation pond.
Further, described aluminium polychlorid storage tank is connected with first stage precipitation tank.
Further, described sodium hydroxide storage tank is connected with regulation reaction tank.
Further, described poly-propionic acid amide. storage tank is connected with second-level settling pond.
Further, described hypochlorous acid storage tank is connected with neutralizing tower.
Further, ensureing that aluminium carbonate is the most excessive during described step 2, PH controls between 9-11.
Further, the ph value of reaction in described step 6 is adjusted between 6.5-7.5.
Beneficial effects of the present invention: the present invention is a kind of processing system containing heavy industries sewage, this system is by many
Plant the set of device, it is possible to more system comprehensively carries out decontamination process to the sewage containing heavy metal.
A kind of processing system containing heavy industries sewage of the present invention has set multiple chemistry fluid reservoir, uses chemical method to dirt
Water carries out preliminary treatment.Owing to metal ion and hydroxyl generate hydroxide precipitation, resolve into so using aluminium carbonate to meet water
Aluminum hydroxide precipitation and carbon dioxide, sodium hydroxide and sl. sol. heavy metal ion react generation hydroxide precipitation.Polymerization chlorine
Change ferro-aluminum flocculant, polyacrylamide solution and hypochlorous acid to flocculate by mixing with sewage, and then related substances is entered
Row precipitation, separation.These reactions are all carried out in different corresponding reaction tanks, so with strong points, decrease during separation a little
The interference of mixed liquid.
The present invention also sets two pressure filter, it is possible to dexterously turbid liquid is transported to pressure filter and carries out filter pressing operation, pressure
The solid filter cake collection that filter operation produces processes, and the clear liquid of generation returns to be circulated in reaction tank utilization, reduce for
The waste of resource.
Middle and late stage filtration system haydite activated carbon adsorption bed of the present invention, electrodialysis, zwitterion hybrid resin, ultraviolet disappear
Poison tower, owing to the micropore of haydite is all tortuous obstructed, just can adsorb granule foreign in water, due to the permeability of haydite
Good, water can be by, and has so been right up to filtering water.Electrodialysis is under DC electric field effect, utilize negative and positive from
Proton exchange makes a kind of physical chemistry mistake that heavy metal ion in aqueous solution is separated from water to solution zwitterion selective penetrated property
Journey.Diaphragm electrolysis is to separate the anode of electrolysis unit and negative electrode with film and is electrolysed.Zwitterion hybrid resin can to the moon from
Son and cation carry out cleaning removal.The disinfection by ultraviolet light tower water to processing carries out last sterilizing.
To sum up, the present invention change in the past that specific aim is poor present in the sewage disposal, cost height and cannot the asking of reuse
Topic, it is achieved that more perfect waste water processes.
Accompanying drawing explanation
Fig. 1 is a kind of processing system containing heavy industries sewage of the present invention and processes showing of sewage disposal system in technique
It is intended to.
Detailed description of the invention
Embodiments of the invention will be illustrated below.
As it is shown in figure 1, a kind of processing system containing heavy industries sewage, processing system device include response system, after
Phase filtration system, pressure filter and chemistry fluid reservoir, response system be followed successively by dissolved air flotation pond, first stage precipitation tank, regulation reaction tank,
Second-level settling pond and neutralizing tower, later stage filtration system is followed successively by haydite activated carbon adsorption bed, electrodialysis, zwitterion compound tree
Fat, disinfection by ultraviolet light tower, pressure filter is provided with two, is connected to the side in first stage precipitation tank and second-level settling pond, chemistry
Fluid reservoir includes aluminium carbonate storage tank, PAFC storage tank, sodium hydroxide storage tank, poly-propionic acid amide. storage tank and hypochlorous acid storage tank.
Aluminium carbonate storage tank is connected with dissolved air flotation pond.Aluminium polychlorid storage tank is connected with first stage precipitation tank.Sodium hydroxide storage tank and regulation
Reaction tank connects.Poly-propionic acid amide. storage tank is connected with second-level settling pond.Hypochlorous acid storage tank is connected with neutralizing tower.
In the present embodiment, 1000 parts of sewage, solid sodium hydroxide 5-20 part in chemical reactor, PAFC 1-
3 parts, poly-propionic acid amide. 2-5 part, aluminium carbonate 20-50 part, 30% hypochloric acid water solution 5-30 part.
The process technique of the present invention comprises the following steps that
Step one: the trade effluent containing heavy metal is collected collecting-tank；
Step 2: by induction system by the sewage transport in collecting-tank to dissolved air flotation pond, opens air stirring switch,
Air is discharged bottom-up, is subsequently adding aluminium carbonate and carries out normal-temperature reaction, and aluminium carbonate is met water and resolved into aluminium hydroxide and dioxy
Change carbon, after reaction 60-120min, make metal ion and hydroxyl generate hydroxide precipitate and ensure aluminium carbonate in aqueous
Excess, PH controls between 9-11.
Step 3: by reacted for step 2 sewage transport to first stage precipitation tank, meanwhile, adds PAFC flocculation
Agent stirring 30-60min, is separated into sewage clear liquid and turbid liquid, is then transported to by turbid liquid after then staticly settling 1-180min
Pressure filter carries out filter pressing operation, is transported to clear liquid regulate reaction tank, and the solid filter cake collection that pressure filter operation produces processes, and produces
Raw clear liquid returns to first stage precipitation tank；
Step 4: the sewage that will be delivered to regulate reaction tank adds sodium hydroxide, opens ultrasound wave homogenizing instrument, makes hydroxyl
The uniformly reaction the most further of ion and sl. sol. heavy metal ion, reaction generates hydroxide precipitation；
Step 5: by the sewage transport of step 4 to second-level settling pond polyacrylamide solution, flocculate time of repose 30-
60min, makes precipitated metal thing and clear liquid precipitate and separate, and turbid liquid enters pressure filter and processes, now remaining denier metal in clear liquid
Ion；
Step 6: the clear liquid after step 5 being processed is transported to neutralizing tower, adds hypochloric acid water solution, flocculates through two steps
Precipitation, pH value is adjusted between 6.5-7.5；
Step 7: the water after step 6 is processed by haydite activated carbon adsorption bed, to micro heavy ion therein,
The further adsorption treatment of chloride ion, then by electrodialysis, zwitterion resin, make resistivity between 3-10M Ω cm；
Step 8: water step 7 processed is discharged after disinfection by ultraviolet light tower processes.
The present invention is a kind of processing system containing heavy industries sewage, the set by multiple device of this system, it is possible to
More system comprehensively carries out decontamination process to the sewage containing heavy metal.
First a kind of processing system containing heavy industries sewage of the present invention is to have set multiple chemistry fluid reservoir, uses chemistry
Method carries out preliminary treatment to sewage.Owing to metal ion and hydroxyl generate hydroxide precipitation, so using aluminium carbonate to meet water
Resolving into aluminum hydroxide precipitation and carbon dioxide, sodium hydroxide and sl. sol. heavy metal ion react generation hydroxide precipitation.
Aluminium iron polychloride floculant, polyacrylamide solution and hypochlorous acid flocculate by mixing with sewage, and then make to be correlated with
Material carries out precipitating, separating.These reactions are all carried out in different corresponding reaction tanks, so with strong points, decrease separation
Time mix the interference of liquid a little.If two pressure filter, it is possible to dexterously turbid liquid is transported to pressure filter and carries out filter pressing operation, filter pressing
The solid filter cake collection that machine operation produces processes, and the clear liquid of generation returns to be circulated in reaction tank utilization, reduces for money
The waste in source.
Middle and late stage filtration system haydite activated carbon adsorption bed of the present invention, electrodialysis, zwitterion hybrid resin, ultraviolet disappear
Poison tower, owing to the micropore of haydite is all tortuous obstructed, it is possible to granule foreign in absorption water, due to the good penetrability of haydite, water
Can be by, be so right up to filtering water.Activated carbon is the water-purifying material that routine use is most, so haydite is lived
Property charcoal adsorbent bed can play good effect.Electrodialysis is under DC electric field effect, utilizes anion and cation exchange membrane to molten
Liquid zwitterion selective penetrated property makes a kind of physical and chemical process that heavy metal ion in aqueous solution is separated from water.Diaphragm electrolysis is
Separate the anode of electrolysis unit and negative electrode with film and be electrolysed.Anion and cation can be carried out by zwitterion hybrid resin
Clean and remove.The disinfection by ultraviolet light tower water to processing carries out last sterilizing.
The present invention have employed physical method and chemical method simultaneously, changes in the past specific aim present in the sewage disposal
Difference, cost are high and cannot the problem of reuse, it is achieved that more perfect waste water processes.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, protection scope of the present invention
It is defined by the claims.The present invention can be made respectively in the essence of the present invention and protection domain by those skilled in the art
Planting amendment or equivalent, this amendment or equivalent also should be regarded as being within the scope of the present invention.
Claims (9)
1. the processing system containing heavy industries sewage, it is characterised in that described processing system device include response system,
Later stage filtration system, pressure filter and chemistry fluid reservoir, described response system is followed successively by dissolved air flotation pond, first stage precipitation tank, regulation
Reaction tank, second-level settling pond and neutralizing tower, described later stage filtration system is followed successively by haydite activated carbon adsorption bed, electrodialysis, negative and positive
Ar ion mixing resin, disinfection by ultraviolet light tower, described pressure filter is provided with two, is connected to first stage precipitation tank and second-level settling pond
Side, described chemistry fluid reservoir include that aluminium carbonate storage tank, PAFC storage tank, sodium hydroxide storage tank, poly-propionic acid amide. store up
Tank and hypochlorous acid storage tank.
A kind of processing system containing heavy industries sewage the most according to claim 1, it is characterised in that described place science and engineering
Skill comprises the following steps that
Step one: the trade effluent containing heavy metal is collected collecting-tank；
Step 2: by induction system by the sewage transport in collecting-tank to dissolved air flotation pond, opens air stirring switch, air
Discharging bottom-up, be subsequently adding aluminium carbonate and carry out normal-temperature reaction, aluminium carbonate is met water and is resolved into aluminium hydroxide and carbon dioxide,
After reaction 60-120min, metal ion is made to generate hydroxide precipitate with hydroxyl；
Step 3: by reacted for step 2 sewage transport to first stage precipitation tank, meanwhile, adds aluminium iron polychloride floculant and stirs
Mix 30-60min, after then staticly settling 1-180min, sewage is separated into clear liquid and turbid liquid, then turbid liquid is transported to filter pressing
Machine carries out filter pressing operation, is transported to clear liquid regulate reaction tank, and the solid filter cake collection that pressure filter operation produces processes, generation
Clear liquid returns to first stage precipitation tank；
Step 4: the sewage that will be delivered to regulate reaction tank adds sodium hydroxide, opens ultrasound wave homogenizing instrument, makes hydroxide ion
With the uniformly reaction the most further of sl. sol. heavy metal ion, reaction generates hydroxide precipitation；
Step 5: by the sewage transport of step 4 to second-level settling pond polyacrylamide solution, flocculate time of repose 30-60min,
Making precipitated metal thing and clear liquid precipitate and separate, turbid liquid enters pressure filter and processes, now remaining denier metal ion in clear liquid；
Step 6: the clear liquid after step 5 being processed is transported to neutralizing tower, adds hypochloric acid water solution, heavy through two step flocculations
Form sediment；
Step 7: the water after step 6 is processed by haydite activated carbon adsorption bed, to micro heavy ion therein, chlorine from
Son adsorption treatment further, then by electrodialysis, zwitterion resin, make resistivity between 3-10M Ω cm；
Step 8: water step 7 processed is discharged after disinfection by ultraviolet light tower processes.
A kind of processing system containing heavy industries sewage the most according to claim 1, it is characterised in that described aluminium carbonate
Storage tank is connected with dissolved air flotation pond.
A kind of processing system containing heavy industries sewage the most according to claim 1, it is characterised in that described polymerization chlorine
Change aluminum storage tank to be connected with first stage precipitation tank.
A kind of processing system containing heavy industries sewage the most according to claim 1, it is characterised in that described hydroxide
Sodium storage tank is connected with regulation reaction tank.
A kind of processing system containing heavy industries sewage the most according to claim 1, it is characterised in that described poly-propionyl
Amine storage tank is connected with second-level settling pond.
A kind of processing system containing heavy industries sewage the most according to claim 1, it is characterised in that described hypochlorous acid
Storage tank is connected with neutralizing tower.
Process technique the most according to claim 2, it is characterised in that ensure during described step 2 that aluminium carbonate is at aqueous solution
Middle excess, PH controls between 9-11.
Process technique the most according to claim 2, it is characterised in that the ph value of reaction in described step 6 is adjusted to 6.5-
Between 7.5.
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| CN108675519A (en) * | 2018-05-18 | 2018-10-19 | 沈阳建筑大学 | A kind of waste water treatment system for fowl processing wastewater |
| CN109384348A (en) * | 2017-08-14 | 2019-02-26 | 上海同昕环境科技有限公司 | A kind of waste water treatment system and method containing heavy metal |
| CN110526468A (en) * | 2019-09-06 | 2019-12-03 | 江伟 | A kind of industrial wastewater treatment system and its processing method based on high-salt wastewater |
| CN111204894A (en) * | 2018-11-21 | 2020-05-29 | 天颂建设集团有限公司 | Municipal sewage construction process |
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