CN103086545A - Method and device for removing and recovering heavy metal in waste water through regenerated active carbon - Google Patents
Method and device for removing and recovering heavy metal in waste water through regenerated active carbon Download PDFInfo
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- CN103086545A CN103086545A CN2013100623050A CN201310062305A CN103086545A CN 103086545 A CN103086545 A CN 103086545A CN 2013100623050 A CN2013100623050 A CN 2013100623050A CN 201310062305 A CN201310062305 A CN 201310062305A CN 103086545 A CN103086545 A CN 103086545A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 80
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 71
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 43
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 37
- 238000001179 sorption measurement Methods 0.000 claims abstract description 69
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 42
- 238000001556 precipitation Methods 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 239000002253 acid Substances 0.000 claims abstract description 23
- 239000003513 alkali Substances 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 230000008929 regeneration Effects 0.000 claims abstract description 18
- 238000011069 regeneration method Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 12
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000000706 filtrate Substances 0.000 claims abstract description 8
- 230000007935 neutral effect Effects 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 45
- 230000002000 scavenging effect Effects 0.000 claims description 36
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 24
- 238000010521 absorption reaction Methods 0.000 claims description 22
- 239000003610 charcoal Substances 0.000 claims description 20
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000001117 sulphuric acid Substances 0.000 claims description 4
- 235000011149 sulphuric acid Nutrition 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 3
- 235000015320 potassium carbonate Nutrition 0.000 claims description 3
- 239000002585 base Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010814 metallic waste Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000001376 precipitating effect Effects 0.000 abstract description 3
- 230000002378 acidificating effect Effects 0.000 abstract description 2
- 230000001172 regenerating effect Effects 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 49
- 238000004064 recycling Methods 0.000 description 7
- 230000008676 import Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 238000009388 chemical precipitation Methods 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 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
- 230000031018 biological processes and functions Effects 0.000 description 2
- 150000007516 brønsted-lowry acids Chemical class 0.000 description 2
- 150000007528 brønsted-lowry bases Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 239000002594 sorbent Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 108010020346 Polyglutamic Acid Proteins 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 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
- 150000005323 carbonate salts Chemical class 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 229920002643 polyglutamic acid Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a method for removing and recovering heavy metal in waste water through regenerated active carbon, which comprises the following steps: filtering waste water to remove particles and suspended substances in the water, and discharging into a neutralization tank; adding dilute base or dilute acid into the waste water in the neutralization tank until the pH value is regulated to neutral; injecting the neutral waste water into an active carbon adsorption column at a certain flow rate, and performing active carbon adsorption treatment to realize up-to-standard discharge; regenerating the active carbon which is saturated by adsorption with an acidic cleaning solution; and discharging the cleaning solution after regeneration into a precipitation tank, adding a precipitating agent, precipitating with good shaping effect, easily filtering, recovering the filtration residue which can be used as a heavy metal raw material, and pumping the filtrate back to the neutralization tank to perform further treatment. According to the invention, the process is simple, chemicals are almost common acid and alkali, less pollution is caused to the environment, the chemical consumption is low, the heavy metal in the waste water can be recovered, and secondary pollution can not be caused. The water control and treatment method can be applied to various heavy metal waste water control and treatment projects. The invention also discloses a device for implementing the method.
Description
Technical field
The present invention relates to a kind of process for treating heavy-metal waste water, especially relate to the heavy metal that can use in gac removal waste water, and the method for the heavy metal in regenerated carbon reclaims waste water simultaneously, the invention still further relates to the device of realizing the method.
Background technology
The heavy metal-containing waste water of discharging in Industrial processes is that environmental pollution is the most serious and the mankind are endangered one of maximum trade effluent.The method of wastewater treatment of Application and Development mainly contains chemical method, physico-chemical processes and biological process at present, comprises the methods such as chemical precipitation, electrolysis, ion-exchange, membrane sepn, absorption method, biotechnology.
The chemical precipitation ratio juris is to make the heavy metal that is dissolved state in waste water change water-fast heavy metal compound into by chemical reaction, with separating, throw out is removed by filtering from the aqueous solution,, the precipitation agent of use has water soluble alkali, soluble carbonate salt, sulfide.The application number treatment process of heavy metal-containing waste water that has been 201010519093.0 disclosure of the invention, the precipitation agent that this patent is used is water soluble alkali; Application number is 201010159107.2 disclosure of the invention, and employing chemical precipitation agent sodium carbonate is removed heavy metal in waste water, and the precipitation agent that this patent is used is sodium carbonate; Application number has been 200610032240.5 disclosure of the invention a kind of water treatment method based on the nonferrous heavy metal waste water recycling, the heavy metal precipitator that this patent is used is sodium sulphite.In actually operating because heavy metal in waste water concentration is little, the particle that heavy metal and precipitation agent reaction generate is little, be difficult for precipitation, need add the flocculation agent aids precipitation to generate, application number be 200710132375.3 disclosure of the invention heavy metal waste water continuous treating method and treatment unit thereof, this patent are exactly that the polyglutamic acid that uses is as flocculation agent.In order to improve sedimentation effect, often increase the usage quantity of precipitation agent, cause reagent cost to rise, also can bring secondary pollution simultaneously, especially adopt sulfide to make precipitation agent and can produce hydrogen sulfide contamination.
Electrolytic process is to utilize the electrochemical properties of metal, metal ion can be separated from the solution of relative high density when electrolysis, the application number low-concentration heavy metal wastewater treatment device that has been 201120396514.5 disclosure of the invention, this patent adopts the electrolytic deposition removal heavy metal, electrolytic process all is suitable in acid and alkaline waste liquor, because the heavy metal in waste water relative concentration is not very high, the current utilization rate of electrolytic process is low, and energy consumption is large.
Ion exchange method is to carry out in ion-exchanger, this method is completed by ion-exchanger, the ion-exchanger of using has ion exchange resin, zeolite etc., ion exchange resin is expensive, its regeneration expense is also higher, technology that the 13x zeolite is applied to be processed heavy metal-containing waste water and reclaim metal that application number is 99102984.4 disclosure of the invention, this patent adopts the 13x zeolite as ion-exchanger, 13x zeolite after absorption is with the use of regenerating after 90-100 ℃ of cleaning of saturated NaCl liquid, and during regeneration, energy consumption cost is high.
Membrane separation technique is to utilize semi-permeable membranes, under the effect of ambient pressure, do not change on the basis of chemical form in solution, solvent is separated with solute or concentrated method, the application number heavy metal treatment micro-filtration system that has been 201120242368.0 disclosure of the invention, this patent adopts tubular membrane filter to filter removal heavy metal, the product quality is good, but because filter opening is little, easily stop up, clean difficulty.
Absorption method is to utilize a kind of effective ways of the unique texture heavy-metal ion removal of sorbent material, sorbent material commonly used has gac, application number is 201010600695.9 disclosure of the invention, and electric flocculation-active carbon adsorption is processed the method that contains heavy metal-containing electroplating effluent, this patent will be flocculated waste water again through charcoal absorption, reach the effect of removal heavy metal, here mostly gac is to be used in conjunction with other method, and the activated carbon treatment situation after explanation useless absorption.
Biotechnology is utilized the microbiological treatment heavy metal-containing waste water, soluble ion is converted into insoluble compound and removes, application number is 99815312.5 disclosure of the invention contains the treatment process of the waste water of heavy metal, this patent is by anerobe biochemical reduction precipitation removal heavy metal, biological process processes that the heavy metal wastewater thereby cost is low, high efficiency, manageability, non-secondary pollution, but high to equipment requirements, and processing speed is not high, be not suitable for the instant processing of a large amount of waste water, be difficult for reclaiming heavy metal.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of method that adopts regeneration to use the heavy metal in gac removal and recovery waste water, process heavy metal wastewater thereby with the method, make it to reach reuse and emission standard, and reclaim simultaneously heavy metal, the pollution of real removal heavy metal to environment.Technique is simple, and the medicament that uses is free from environmental pollution, and the usage quantity of medicament is little.The present invention also provides a kind of device of realizing the method.
For solving the technical problem of aforesaid method, the present invention realizes by following step:
(1), the waste water that contains heavy metal is removed particle and suspended substance wherein after filtration;
(2), waste water acid adding or the adjusting PH with base of initial filter is extremely neutral;
(3), the waste water of above-mentioned processing is flowed through with certain flow velocity the adsorption column of gac is housed, the heavy metal in waste water is reduced to below emission standard by charcoal absorption, can directly discharge or reuse;
(4), that the gac in adsorption column reaches absorption is saturated, adsorption column recycles regeneration of activated carbon with a small amount of scavenging solution reverse cleaning repeatedly repeatedly;
(5), the relative waste water of heavy metal concentration in the scavenging solution after regeneration has improved hundreds of to several thousand times, be equivalent to make concentrated solution, use stoichiometric precipitation agent just can well precipitate heavy metal in scavenging solution, this moment is because heavy metal concentration is high, need to flocculation agent do not arranged auxiliary, scavenging solution is until precipitating rear filtration fully, and filter residue can be used as the heavy metal raw materials recovery, and filtrate is also returned step (2) and again processed.
The acid of described step (2) is 10% dilute hydrochloric acid or dilute sulphuric acid;
The alkali of described step (2) is the solution of 10% sodium hydroxide or potassium hydroxide;
The gac of described step (3) is granulated active carbon (GAC) or activated carbon fiber (ACF);
The scavenging solution of described step (4) is dilute hydrochloric acid or the dilute sulphuric acid of pH3;
The precipitation agent of described step (5) is the solution of 10% sodium hydroxide or potassium hydroxide or sodium carbonate or salt of wormwood.
For solving the technical problem of said apparatus, the present invention is achieved in that it comprises the neutralization part, absorbed portion, regeneration section, filtration unit, power set, precipitation part and control section.It is characterized in that: primary filter (1), neutralization tank (2), adsorption column (3), outlet sump (4), receiver (5) is connected by pipeline (7) between settling tank (6) successively; Neutralization tank (2), adsorption column (3), outlet sump (4), receiver (5), adsorption column multiport valve (10) is set, outlet sump valve (11), receiver valve (12) and settling tank valve (13) on the pipeline between settling tank (6); Controller (8) gathers pH and counts online (15) and heavy metal online analyzer (16) signal, controller (8) is controlled the agitator (14) in neutralization tank (2), adsorption column multiport valve (10), outlet sump valve (11), receiver valve (12) and settling tank valve (13), same Time Controller (8) is controlled power set.
Described device middle controller (8) is PLC or embedded main board system;
Described neutralization tank (2) disposes pH and counts online (15);
Described outlet sump (4) configuration heavy metal online analyzer (16).
Beneficial effect of the present invention is:
1, come various heavy in Adsorption waste water with active carbon adsorption column merely;
2, can not change with the wastewater pH after activated carbon treatment, thereby water outlet pH value is also in neutrality;
3, charcoal absorption saturated rear repeatedly clean on a small quantity with acidic cleaning solution after, gac can be reused;
When 4, cleaning, the heavy metal that is adsorbed on gac is transferred in a small amount of scavenging solution, and heavy metal concentration is concentrated hundreds of to thousands of times, is easy to be precipitated out with respect to the waste water of lower concentration;
What 5, precipitation agent was used is sodium hydroxide or potassium hydroxide or sodium carbonate or salt of wormwood, does not use sulfide, very little to the pollution of environment;
6, after regeneration in scavenging solution heavy metal concentration high, easily be shaped with the precipitation agent precipitation, filters easyly, the filter residue recycling can not form secondary pollution;
7, transfer wastewater pH to neutral, required bronsted lowry acids and bases bronsted lowry consumption is quantifiable, and in scavenging solution, the concentration of acid is very low, and the precipitation agent consumption is by stoichiometric, and whole system is saved the medicament usage quantity;
8, institute's with medicament is all simple bronsted lowry acids and bases bronsted lowry, easily buys;
9, the signal that pH counts online and heavy metal online analyzer occurs is passed to controller, controller is by controlling the adsorption column multiport valve, outlet sump valve, receiver valve and settling tank valve are completed the work of adsorption treatment waste water and adsorption column regeneration, and whole system can unattended operation.
10, the amount of processing waste water is relevant to adsorption column gac capacity, can use not isometric active carbon adsorption column, also can connect to satisfy different needs with many groups active carbon adsorption column;
Saturated when the charcoal absorption of one group of adsorption column during 11, with series connection adsorption column adsorption treatment waste water, switch the adsorption column multiport valve, enable new one group of active carbon adsorption column, the saturated active carbon adsorption column of cleaning and regeneration absorption simultaneously, safeguards system continuous service.
Description of drawings
Accompanying drawing 1 is process flow sheet of the present invention
Accompanying drawing 2 is for realizing structure drawing of device of the present invention
1, primary filter, 2, neutralization tank, 3, adsorption column, 4, outlet sump, 5, receiver, 6, settling tank, 7, pipeline, 8, controller, 10, the adsorption column multiport valve, 11, outlet sump valve, 12, receiver valve, 13, the settling tank valve, 14, agitator, 15, pH counts online, and 16, heavy metal online analyzer
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Embodiment 1
As shown in Figure 2, the particle in primary filter (1) filtering waste water and suspended substance import neutralization tank (2) through pipeline (7) with leaded waste water (20mg/L); Control acid or alkali receiver valve (12) unlatching acid or alkali receiver (5) by controller (8), inject 10% hydrochloric acid or 10% sodium hydroxide solution to neutralization tank, agitator (14) is opened mixing simultaneously, pH counts after (15) measure the neutralization tank wastewater pH and reach neutrality online, and controller (8) controls and cuts out acid or alkali receiver valve (12) stops injecting 10% hydrochloric acid or 10% sodium hydroxide solution; by pump, middle wastewater is injected active carbon adsorption column (3) through pipeline (7) with certain flow velocity by neutralization tank (2), gac is granulated active carbon (GAC), waste water is processed through charcoal absorption and is entered outlet sump by pipeline (7), adsorption column multiport valve (10) conducting this moment, heavy metal online analyzer (16) in outlet sump (4) regularly detects, when charcoal absorption is saturated, when detected value exceeds emission standard, controller (8) is controlled adsorption column multiport valve (10) and is disconnected switching, enable new active carbon adsorption column, continue adsorption treatment waste water, controller (8) is controlled scavenging solution receiver valve (12) and is opened conducting, the scavenging solution of 1.5 times of column volumes of injection is cleaning active charcoal adsorption column repeatedly, and after cleaning, controller (8) is controlled the conducting of unlatching adsorption column multiport valve (10) scavenging solution is entered settling tank (6), after scavenging solution after regeneration entered settling tank (6), controller (8) was controlled precipitation agent receiver valve (12) and is opened conducting, and with scavenging solution: the precipitation agent volume ratio adds precipitation agent at 1000: 1, after precipitation was complete, controller (8) was controlled the conducting of unlatching settling tank valve (13) and is arrived strainer through row of conduits, and filtrate is returned neutralization tank through pipeline (7), the filter residue recycling.
Embodiment 2
As shown in Figure 2, the particle in primary filter (1) filtering waste water and suspended substance import neutralization tank (2) through pipeline (7) with leaded waste water (20mg/L); Control acid or alkali receiver valve (12) unlatching acid or alkali receiver (5) by controller (8), inject 10% hydrochloric acid or 10% sodium hydroxide solution to neutralization tank, agitator (14) is opened mixing simultaneously, pH counts after (15) measure the neutralization tank wastewater pH and reach neutrality online, and controller (8) controls and cuts out acid or alkali receiver valve (12) stops injecting 10% hydrochloric acid or 10% sodium hydroxide solution; by pump, middle wastewater is injected active carbon adsorption column (3) through pipeline (7) with certain flow velocity by neutralization tank (2), gac is activated carbon fiber (ACF), waste water is processed through charcoal absorption and is entered outlet sump by pipeline (7), adsorption column multiport valve (10) conducting this moment, heavy metal online analyzer (16) in outlet sump (4) regularly detects, when charcoal absorption is saturated, when detected value exceeds emission standard, controller (8) is controlled adsorption column multiport valve (10) and is disconnected switching, enable new active carbon adsorption column, continue adsorption treatment waste water, controller (8) is controlled scavenging solution receiver valve (12) and is opened conducting, the scavenging solution of 1.5 times of column volumes of injection is cleaning active charcoal adsorption column repeatedly, and after cleaning, controller (8) is controlled the conducting of unlatching adsorption column multiport valve (10) scavenging solution is entered settling tank (6), after scavenging solution after regeneration entered settling tank (6), controller (8) was controlled precipitation agent receiver valve (12) and is opened conducting, and with scavenging solution: the precipitation agent volume ratio adds precipitation agent at 1000: 1, after precipitation was complete, controller (8) was controlled the conducting of unlatching settling tank valve (13) and is arrived strainer through row of conduits, and filtrate is returned neutralization tank through pipeline (7), the filter residue recycling.
As shown in Figure 2, particle and the suspended substance of waste water (40mg/L) in primary filter (1) filtering waste water with cupric imports neutralization tank (2) through pipeline (7); Control acid or alkali receiver valve (12) unlatching acid or alkali receiver (5) by controller (8), inject 10% hydrochloric acid or 10% sodium hydroxide solution to neutralization tank, agitator (14) is opened mixing simultaneously, pH counts after (15) measure the neutralization tank wastewater pH and reach neutrality online, and controller (8) controls and cuts out acid or alkali receiver valve (12) stops annotating 10% hydrochloric acid or 10% sodium hydroxide solution; by pump, middle wastewater is injected active carbon adsorption column (3) through pipeline (7) with certain flow velocity by neutralization tank (2), gac is activated carbon fiber (ACF), waste water is processed through charcoal absorption and is entered outlet sump by pipeline (7), adsorption column multiport valve (10) conducting this moment, heavy metal online analyzer (16) in outlet sump (4) regularly detects, when charcoal absorption is saturated, when detected value exceeds emission standard, controller (8) is controlled adsorption column multiport valve (10) and is disconnected switching, enable new active carbon adsorption column, continue adsorption treatment waste water, controller (8) is controlled scavenging solution receiver valve (12) and is opened conducting, the scavenging solution of 1.5 times of column volumes of injection is cleaning active charcoal adsorption column repeatedly, and after cleaning, controller (8) is controlled the conducting of unlatching adsorption column multiport valve (10) scavenging solution is entered settling tank (6), after scavenging solution after regeneration entered settling tank (6), controller (8) was controlled precipitation agent receiver valve (12) and is opened conducting, and with scavenging solution: the precipitation agent volume ratio adds precipitation agent at 1000: 1, after precipitation was complete, controller (8) was controlled the conducting of unlatching settling tank valve (13) and is arrived strainer through row of conduits, and filtrate is returned neutralization tank through pipeline (7), the filter residue recycling.
Embodiment 4
Particle and the suspended substance of the waste water (40mg/L) that as shown in Figure 2, will contain zinc in primary filter (1) filtering waste water imports neutralization tank (2) through pipeline (7); Control acid or alkali receiver valve (12) unlatching acid or alkali receiver (5) by controller (8), inject 10% hydrochloric acid or 10% sodium hydroxide solution to neutralization tank, agitator (14) is opened mixing simultaneously, pH counts after (15) measure the neutralization tank wastewater pH and reach neutrality online, and controller (8) controls and cuts out acid or alkali receiver valve (12) stops injecting 10% hydrochloric acid or 10% sodium hydroxide solution; by pump, middle wastewater is injected active carbon adsorption column (3) through pipeline (7) with certain flow velocity by neutralization tank (2), gac is activated carbon fiber (ACF), waste water is processed through charcoal absorption and is entered outlet sump by pipeline (7), adsorption column multiport valve (10) conducting this moment, heavy metal online analyzer (16) in outlet sump (4) regularly detects, when charcoal absorption is saturated, when detected value exceeds emission standard, controller (8) is controlled adsorption column multiport valve (10) and is disconnected switching, enable new active carbon adsorption column, continue adsorption treatment waste water, controller (8) is controlled scavenging solution receiver valve (12) and is opened conducting, the scavenging solution of 1.5 times of column volumes of injection is cleaning active charcoal adsorption column repeatedly, and after cleaning, controller (8) is controlled the conducting of unlatching adsorption column multiport valve (10) scavenging solution is entered settling tank (6), after scavenging solution after regeneration entered settling tank (6), controller (8) was controlled precipitation agent receiver valve (12) and is opened conducting, and with scavenging solution: the precipitation agent volume ratio adds precipitation agent at 1000: 1, after precipitation was complete, controller (8) was controlled the conducting of unlatching settling tank valve (13) and is arrived strainer through row of conduits, and filtrate is returned neutralization tank through pipeline (7), the filter residue recycling.
Particle and the suspended substance of the waste water (2mg/L) that as shown in Figure 2, will contain cadmium in primary filter (1) filtering waste water imports neutralization tank (2) through pipeline (7); Control acid or alkali receiver valve (12) unlatching acid or alkali receiver (5) by controller (8), inject 10% hydrochloric acid or 10% sodium hydroxide solution to neutralization tank, agitator (14) is opened mixing simultaneously, pH counts after (15) measure the neutralization tank wastewater pH and reach neutrality online, and controller (8) controls and cuts out acid or alkali receiver valve (12) stops injecting 10% hydrochloric acid or 10% sodium hydroxide solution; by pump, middle wastewater is injected active carbon adsorption column (3) through pipeline (7) with certain flow velocity by neutralization tank (2), gac is activated carbon fiber (ACF), waste water is processed through charcoal absorption and is entered outlet sump by pipeline (7), adsorption column multiport valve (10) conducting this moment, heavy metal online analyzer (16) in outlet sump (4) regularly detects, when charcoal absorption is saturated, when detected value exceeds emission standard, controller (8) is controlled adsorption column multiport valve (10) and is disconnected switching, enable new active carbon adsorption column, continue adsorption treatment waste water, controller (8) is controlled scavenging solution receiver valve (12) and is opened conducting, the scavenging solution of 1.5 times of column volumes of injection is cleaning active charcoal adsorption column repeatedly, and after cleaning, controller (8) is controlled the conducting of unlatching adsorption column multiport valve (10) scavenging solution is entered settling tank (6), after scavenging solution after regeneration entered settling tank (6), controller (8) was controlled precipitation agent receiver valve (12) and is opened conducting, and with scavenging solution: the precipitation agent volume ratio adds precipitation agent at 1000: 1, after precipitation was complete, controller (8) was controlled the conducting of unlatching settling tank valve (13) and is arrived strainer through row of conduits, and filtrate is returned neutralization tank through pipeline (7), the filter residue recycling.
Existing heavy metal wastewater thereby filtration unit and power set used can adopt usual means well-known to those skilled in the art in addition.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its objective is that allowing the person skilled in the art can understand the present invention is implemented; can not limit protection scope of the present invention with this; the equivalence that all spirit according to the present invention are done changes or modifies, and all should be encompassed in protection scope of the present invention.
Claims (10)
1. method that adopts regenerated carbon to remove and reclaim heavy metal in waste water is characterized in that described treatment process carries out by the following step:
The waste water filtering that (1) will contain heavy metal removes that in water, particle and suspended substance enter neutralization tank;
(2) waste water of step (1) initial filter is injected neutralization tank adds dilute alkali or diluted acid transfers pH to neutral;
(3) the middle wastewater that step (2) is obtained injects active carbon adsorption column with certain flow velocity, and the heavy metal in waste water is processed through charcoal absorption and is reduced to below emission standard, can directly discharge or reuse;
(4) gac in the adsorption column in step (3) process is reached absorption saturated, adsorption column recycles regeneration of activated carbon with a small amount of scavenging solution reverse cleaning repeatedly repeatedly;
(5) add precipitation agent after the scavenging solution after regeneration in step (4) is entered settling tank, precipitation is shaped effective, easily filters, and filter residue reclaims and can be used as the heavy metal raw material, and filtrate is returned neutralization tank and continued to process.
2. the method for heavy metal in waste water is removed and reclaimed to employing regenerated carbon according to claim 1, it is characterized in that in described step (2), diluted alkaline is a kind of of 10% dilute sodium hydroxide and rare potassium hydroxide.
3. the method for heavy metal in waste water is removed and reclaimed to employing regenerated carbon according to claim 1, it is characterized in that in described step (2), diluted acid is a kind of of 10% dilute hydrochloric acid and dilute sulphuric acid.
4. the method for heavy metal in waste water is removed and reclaimed to employing regenerated carbon according to claim 1, it is characterized in that gac in described step (3) is a kind of in granulated active carbon (GAC) and activated carbon fiber (ACF).
5. the method for heavy metal in waste water is removed and reclaimed to employing regenerated carbon according to claim 1, it is characterized in that scavenging solution in described step (4) is a kind of of the dilute hydrochloric acid of pH3 and dilute sulphuric acid.
6. the method for heavy metal in waste water is removed and reclaimed to employing regenerated carbon according to claim 1, it is characterized in that in described step (5), precipitation agent is 10% sodium hydroxide, 10% potassium hydroxide, 10% sodium carbonate and 10% salt of wormwood a kind of.
7. a kind of device that adopts regenerated carbon to remove and reclaim heavy metal in waste water according to claim 1, it comprises the neutralization part, absorbed portion, regeneration section, filtration unit, power set, precipitation part and control section.It is characterized in that: primary filter (1), neutralization tank (2), adsorption column (3), outlet sump (4), receiver (5) is connected by pipeline (7) between settling tank (6) successively; Neutralization tank (2), adsorption column (3), outlet sump (4), receiver (5), adsorption column multiport valve (10) is set, outlet sump valve (11), receiver valve (12) and settling tank valve (13) on the pipeline between settling tank (6); Controller (8) gathers pH and counts online (15) and heavy metal online analyzer (16) signal, controller (8) is controlled the agitator (14) in neutralization tank (2), adsorption column multiport valve (10), outlet sump valve (11), receiver valve (12) and settling tank valve (13), same Time Controller (8) is controlled power set.
8. the device of heavy metal in waste water is removed and reclaimed to employing regenerated carbon according to claim 7, it is characterized in that described device middle controller (8) is PLC or embedded main board system.
9. the device of heavy metal in waste water is removed and reclaimed to employing regenerated carbon according to claim 7, it is characterized in that described neutralization tank (2) disposes pH and counts online (15).
10. the device of heavy metal in waste water is removed and reclaimed to employing regenerated carbon according to claim 7, it is characterized in that described outlet sump (4) disposes heavy metal online analyzer (16).
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036411A (en) * | 2015-07-21 | 2015-11-11 | 安徽江威精密制造有限公司 | Treating method for industrial waste water |
| CN105060570A (en) * | 2015-08-28 | 2015-11-18 | 尚鼎炉业科技（扬州）有限公司 | Process for sewage treatment by means of activated carbon adsorption equipment |
| CN107010756A (en) * | 2017-05-04 | 2017-08-04 | 郑州大学 | A kind of HTS prepares the acid waste water process for reclaiming produced |
| CN108947027A (en) * | 2018-09-14 | 2018-12-07 | 兴发铝业（成都）有限公司 | Aluminum profile processing water pollution processing unit |
| CN111233240A (en) * | 2020-03-02 | 2020-06-05 | 天津辰创环境工程科技有限责任公司 | Treatment device and treatment method for liquid hazardous waste pretreatment |
| CN111928572A (en) * | 2020-07-28 | 2020-11-13 | 鹰米精密机械南通有限公司 | Cooling process for metal part machining |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6214233B1 (en) * | 1989-07-28 | 2001-04-10 | Lewis, Iii Tom | Process for simultaneous oxidation of cyanide and recovery of heavy metals from waste water |
| JP2003053350A (en) * | 2001-08-14 | 2003-02-25 | Ebara Corp | Method and device for highly removing cod component in water |
| CN101244860A (en) * | 2008-03-28 | 2008-08-20 | 北京清大国华环保科技有限公司 | Extremely-high concentration multi-species heavy metal waste liquid treatment method and apparatus |
| CN101746906A (en) * | 2008-12-03 | 2010-06-23 | 五邑大学 | Method for processing electroplating wastewater with heavy metal ions |
| CN102531233A (en) * | 2011-12-21 | 2012-07-04 | 邵梦馨 | A method for treating electroplating wastewater containing heavy metals and recycling heavy metals |
| CN102618724A (en) * | 2012-04-26 | 2012-08-01 | 大恩(天津)环境技术研发有限公司 | Method for separating and recovering heavy metals from melted garbage burning fly ash |
| CN102874956A (en) * | 2012-11-02 | 2013-01-16 | 永兴鑫裕环保镍业有限公司 | Novel treatment process for mercurous industrial waste water |
| CN102923887A (en) * | 2012-11-22 | 2013-02-13 | 大连海事大学 | A method for treating heavy metal wastewater |
-
2013
- 2013-02-28 CN CN2013100623050A patent/CN103086545A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6214233B1 (en) * | 1989-07-28 | 2001-04-10 | Lewis, Iii Tom | Process for simultaneous oxidation of cyanide and recovery of heavy metals from waste water |
| JP2003053350A (en) * | 2001-08-14 | 2003-02-25 | Ebara Corp | Method and device for highly removing cod component in water |
| CN101244860A (en) * | 2008-03-28 | 2008-08-20 | 北京清大国华环保科技有限公司 | Extremely-high concentration multi-species heavy metal waste liquid treatment method and apparatus |
| CN101746906A (en) * | 2008-12-03 | 2010-06-23 | 五邑大学 | Method for processing electroplating wastewater with heavy metal ions |
| CN102531233A (en) * | 2011-12-21 | 2012-07-04 | 邵梦馨 | A method for treating electroplating wastewater containing heavy metals and recycling heavy metals |
| CN102618724A (en) * | 2012-04-26 | 2012-08-01 | 大恩(天津)环境技术研发有限公司 | Method for separating and recovering heavy metals from melted garbage burning fly ash |
| CN102874956A (en) * | 2012-11-02 | 2013-01-16 | 永兴鑫裕环保镍业有限公司 | Novel treatment process for mercurous industrial waste water |
| CN102923887A (en) * | 2012-11-22 | 2013-02-13 | 大连海事大学 | A method for treating heavy metal wastewater |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036411A (en) * | 2015-07-21 | 2015-11-11 | 安徽江威精密制造有限公司 | Treating method for industrial waste water |
| CN105060570A (en) * | 2015-08-28 | 2015-11-18 | 尚鼎炉业科技（扬州）有限公司 | Process for sewage treatment by means of activated carbon adsorption equipment |
| CN107010756A (en) * | 2017-05-04 | 2017-08-04 | 郑州大学 | A kind of HTS prepares the acid waste water process for reclaiming produced |
| CN107010756B (en) * | 2017-05-04 | 2020-09-04 | 郑州大学 | A kind of acid waste water reuse treatment method produced by titanium-silicon molecular sieve preparation |
| CN108947027A (en) * | 2018-09-14 | 2018-12-07 | 兴发铝业（成都）有限公司 | Aluminum profile processing water pollution processing unit |
| CN111233240A (en) * | 2020-03-02 | 2020-06-05 | 天津辰创环境工程科技有限责任公司 | Treatment device and treatment method for liquid hazardous waste pretreatment |
| CN111928572A (en) * | 2020-07-28 | 2020-11-13 | 鹰米精密机械南通有限公司 | Cooling process for metal part machining |
| CN115259477A (en) * | 2022-08-26 | 2022-11-01 | 陕西延长石油（集团）有限责任公司 | A kind of activated carbon continuous adsorption regeneration device and method |
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Application publication date: 20130508 |