CN110183020A - A kind of processing method for heavy metal wastewater thereby of digging up mine - Google Patents
A kind of processing method for heavy metal wastewater thereby of digging up mine Download PDFInfo
- Publication number
- CN110183020A CN110183020A CN201910493726.6A CN201910493726A CN110183020A CN 110183020 A CN110183020 A CN 110183020A CN 201910493726 A CN201910493726 A CN 201910493726A CN 110183020 A CN110183020 A CN 110183020A
- Authority
- CN
- China
- Prior art keywords
- filtrate
- acid
- liquor
- molecular sieve
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/52—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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention relates to environmentally friendly water treatment fields, and in particular to a kind of processing method for heavy metal wastewater thereby of digging up mine, comprising the following steps: (1) acidleach: waste water and acid-mixed are closed, and heating, filter to get filtrate A；(2) molecular sieve is added in filtrate A, is stirred, filter to get filtrate B；(3) coagulant stirring is added in liquor B, is stood, and then adds flocculant stirring, filter to get filtrate C；(4) active carbon is added in liquor C, stirs, stands, filtering.Processing method of the invention has the heavy metal ion such as copper, iron, zinc, cadmium, the lead that can effectively administer in waste water, environmental protection, save the cost, is easy to the advantages such as industrialization.
Description
Technical field
The present invention relates to environmentally friendly water treatment fields, and in particular to a kind of processing method for heavy metal wastewater thereby of digging up mine.
Background technique
Mining heavy metal wastewater thereby is generally referred to containing slag, the waste water rich in heavy metal and heavy metal compound.It is main
If as caused by the heavy metal-containing waste water of mining, plating, steel and nonferrous metallurgy and some chemical enterprise emissions.This
Outside, sanitary sewage, landfill leachate etc. are also the factor of heavy metal pollution of water body.The heavy metal wastewater thereby discharged in mining process,
The waste water generated when exploiting metallic ore is mainly suspended matter and heavy metal ion and its compound, mainly contains copper, chromium, zinc, cadmium
Equal metal ions.If the high waste water of these metal ions is just discharged into environment without processing, serious ring will be caused
Border pollution.
Application for a patent for invention CN 103936105A is related to a kind of for handling the electrochemical method of industrial wastewater.The electrification
Method can effectively remove the heavy metal element in industrial wastewater using magnesium or magnesium alloy as anode.Waste water enters electrochemistry dress
It postponing, the high activity magnesium hydroxide that magnesium anode generates under electrochemical action can efficiently adsorb the heavy metal ion in waste water,
And in conjunction with the suspended things in water, realize and be separated by solid-liquid separation finally by precipitating, achievees the purpose that purify waste water.This method can be simultaneously
The heavy metal ion such as zinc, cadmium, copper, the arsenic in industrial wastewater are removed, removal rate is up to 95% or more.With traditional iron, aluminium anodes
Electrochemical appliance is compared, and magnesium anode electrochemical appliance has many advantages, such as that pole plate is not easy to be passivated, power consumption is low, waste residue amount is few, is applicable in
In the wastewater treatment of the industries such as metallurgy, mining, plating, intermetallic composite coating.But China's power generation still relies on thermal power generation, hair now
A large amount of coal and other fossil fuels are used in electric process, will cause environmental pollution.So managing Industry Waste using power office
Water is not a kind of mode of environmental protection.
Application for a patent for invention CN 102795728A discloses a kind of processing of non-ferrous metal industry acid waste water containing heavy metal
Method, using tailings mortar neutralization-vulcanization-combined coagulant technology technique, main flow are as follows: first with tailings mortar to containing heavy metal
Acid waste water is neutralized, is adsorbed, and Na is then used2With heavy metal remaining in acid waste water vulcanization reaction occurs for S, and with FeSO4Make
It is coagulant, polyacrylamide as flocculation aid coagulating sedimentation, makes the H in acid waste water+It is neutralized, removes the weight in waste water
Metal.The present invention greatly reduces fund of the enterprise in waste water dis posal and throws using the raw tailings mortar of mineral products is picked up
Enter, while reducing Enterprise Solid Refuse yield, the acidity in waste water can be neutralized effectively, and heavy metal can obtain
Effective removal.But such method is poor for the recovering effect of metal, wastewater treatment rate is lower.
Application for a patent for invention CN 101538073A disclose it is a kind of using shell removal industrial wastewater in heavy metallic salt from
The method of son.The method uses diameter for the shell particles preparation of 2 ± 0.3mm, preferably uses 1M H in advance2SO4It carries out
Pretreatment.The shell preparation is to the Cu in industrial wastewater2+、Zn2+、Fe3+And Cd2+Cu in mixed ion solutions2+And Fe3+'s
Adsorption effect is best, to Zn2+And Cd2+With certain Adsorption effect.To Fe3+Adsorption effect can achieve
99% or more, to Cu2+And Zn2+Removal effect can respectively reach country to the secondary discharge standard of copper and zinc.But it is such
Method is only applicable to laboratory lab scale, applied to industrialization will appear cost is excessively high, exhaust gas shellfish material can not excessively handle with
As for formation solid pollution.
Patent of invention CN 108706785A discloses a kind of mining smelting wastewater exception water quality emergency treatment device and side
Method, described device have level-one aeration tank, and once sedimentation basin, " S " type aeration tank, secondary heavy is sequentially connected in series behind level-one aeration tank
Shallow lake pond and sand filter, and primary sedimentation basin and secondary sedimentation tank are also mating is connected with slurry tank, are equipped with above level-one aeration tank
Bleaching powder adds tank and the concentrated sulfuric acid adds tank, flocculant concentration tank is equipped with above primary sedimentation basin, above " S " type aeration tank
Add tank equipped with heavy metals removal agent, bleaching powder adds tank and sodium hydroxide adds tank, added above sand filter equipped with the concentrated sulfuric acid
Tank, the level-one aeration tank and " S " type aeration bottom of pond portion are equipped with aeration tube, the primary sedimentation basin and secondary precipitation bottom of pond portion
Mud is conveyed into slurry tank by sludge pump and slurry pipeline；The present invention is suitable for what coloured industry production process generated
Contain heavy metal, COD, NH3One or more pollution factor Industrial Wastewater Treatments such as-N.But such method keypoint treatment is
The COD in ammonia nitrogen pollutant and reduction waste water in waste water, it is poor for the heavy metal effect administered in waste water.
Currently, both can effectively administer the huge sum of money in waste water there are no a kind of method for administering mining heavy metal wastewater thereby
Belong to, and can achieve the purpose of environmental protection, save the cost.
Summary of the invention
In order to solve in the prior art, administering method poor to heavy metal regulation effect in mining wastewater not environmentally, cost compared with
The problems such as high, the present invention provide a kind of processing method of metallic wastewater of digging up mine.
The present invention provides a kind of processing method of heavy metal wastewater thereby of digging up mine, comprising the following steps:
(1) acidleach: waste water and acid-mixed are closed, and heating, filter to get filtrate A；
(2) molecular sieve is added in filtrate A, is stirred, filter to get filtrate B；
(3) coagulant stirring is added in liquor B, is stood, and then adds flocculant stirring, filter to get filtrate C；
(4) active carbon is added in liquor C, stirs, stands, filtering.
Further, in the step (1), by weight, waste water: acid=3-5:1.
Further, in the step (1), acid is mixed acid, is made of one of sulfuric acid, hydrochloric acid, phosphoric acid and carbonic acid.
Further, in the step (1), acid is hydrochloric acid and carbonic acid.
Further, the mixed acid, by weight, it is 20-40% that carbonic acid, which accounts for mixed acid parts by weight,.
Further, the mixed acid, by weight, it is 25% that carbonic acid, which accounts for mixed acid parts by weight,.
Further, in the step (1), heating temperature is 45-60 DEG C.
Further, in the step (2), molecular sieve type be ZSM-8 type molecular sieve, ZSM-11 type molecular sieve,
One of Silicalite-1 type molecular sieve is a variety of.
Further, in the step (2), by weight, filtrate A: molecular sieve=40-60:1.
Further, in the step (2), mixing speed 50-100r/min；Mixing time is 2-3h.
Further, in the step (3), the coagulant is aluminium polychloride and bodied ferric sulfate, the flocculant
For polyacrylamide.
Further, by weight, in the coagulant, aluminium polychloride: bodied ferric sulfate=2-5:1
Further, in the step (3), by weight, liquor B: coagulant=2-4:1；Coagulant: flocculant=
40-60:1。
Further, in the step (3), when adding coagulant, mixing speed 150-300r/min, mixing time is
10-30min。
Further, in the step (3), time of repose 1-2h.
Further, in the step (3), mixing speed is 20-50r/min, mixing time 3- when adding flocculant
5h。
Further, in the step (4), by weight, liquor C: active carbon=40-60:1.
Further, in the step (4), by weight, liquor C: active carbon=50:1.
Further, in the step (4), mixing speed 100-150r/min, mixing time 30-45min.
Further, in the step (4), time of repose 1-3h.
Further, comprising the following steps:
(1) acidleach: 3-5 parts of waste water and 1 part of acid-mixed are closed, are heated to 45-60 DEG C, filter to get filtrate A；
(2) molecular sieve is added in filtrate A, low whipping speed stirs 2-3h under conditions of being 50-100r/min, filters
Liquor B；
(3) aluminium polychloride and bodied ferric sulfate are added in liquor B, under the conditions of low whipping speed is 150-300r/min
10-30min is stirred, 1-2h is stood, then adds polyacrylamide, low whipping speed stirs 3- under the conditions of being 20-50r/min
5h, filter to get filtrate C；
(4) active carbon is added in liquor C, low whipping speed stirs 30-45min under the conditions of being 100-150r/min, quiet
1-3h is set, is filtered.
Further, comprising the following steps:
(1) acidleach: 4 parts of waste water and 1 part of acid-mixed are closed, wherein acid is hydrochloric acid and carbonate mixture, the mass fraction of carbonic acid
It is 25%, is heated to 50 DEG C, filters to get filtrate A；
(2) ZSM-8 type molecular sieve is added in filtrate A, low whipping speed stirs 2.5h, mistake under conditions of being 80r/min
Filter to obtain liquor B；
(3) aluminium polychloride and bodied ferric sulfate are added in liquor B, low whipping speed stirs under the conditions of being 200r/min
20min stands 1.5h, then adds polyacrylamide, and low whipping speed stirs 4.5h under the conditions of being 25r/min, filters to obtain filter
Liquid C；
(4) active carbon is added in liquor C, low whipping speed stirs 40min under the conditions of being 120r/min, stands 2h, mistake
Filter.
The order of addition of flocculant and coagulant cannot overturn, first plus coagulant, then plus flocculant effect it is more preferable.First it is added
Coagulant is completed neutralization charged colloid and is taken off surely, forms tiny floccule, flocculant is then added, further increase cotton-shaped object
Product, is conducive to sufficiently precipitate.Agitating mode is first quickly to stir evenly, and is then allowed to stand, and is mixed slowly after flocculant is added, and is reacted
Time first short and then long.The wastewater treatment result obtained in this way is more preferable.In addition, the coagulant that the present invention selects is polymerization
Aluminium chloride and bodied ferric sulfate, and certain suitable ratio has been selected, so that the effect of settling to metal ion in waste water enhances,
Have the function that effectively remove metal ion.
The present invention has selected suitable molecular sieve, and solid particle in waste water, heavy metal ion are adsorbed with preferably
Effect.
The present invention after plus active carbon by the way of, can guarantee metal ion treatment effect it is preferable under the premise of,
It is effectively saved cost.
Present invention employs unique mixed acid, and suitable proportion has been determined, so that metal ion leaching rate is high, it is beneficial
In the subsequent further removal process to metal.
It is compared with the prior art, the beneficial effects of the present invention are:
1. the present invention has selected suitable mixed acid, effectively adjusting pH value, the processing of heavy metal is provided for the later period good
Good reaction environment.
2. the present invention has selected suitable coagulant and the flocculant used of arranging in pairs or groups with it, and has selected suitable addition
Sequentially, so that flocculating effect greatly enhances.
3. the present invention it is preferable for the treatment effect of heavy metal in mining wastewater, for the metals such as copper, iron, zinc, cadmium, lead from
Son has preferable governance role.
4. the present invention has selected suitable opportunity addition active carbon, so that regulation effect is good, and additive amount is small, reaches saving
The purpose of cost.
5. operation of the present invention process is simple, easy to industrialized production.
Specific embodiment
The invention will now be further described with reference to specific embodiments, the advantages and features of the present invention will be with description and
It is apparent, but these examples are merely exemplary, it is not intended to limit the scope of the present invention in any way.Those skilled in the art
Member it should be understood that without departing from the spirit and scope of the invention can details to technical solution of the present invention and form into
Row modifications or substitutions, but these modifications and replacement are fallen within the protection scope of the present invention.
As research object, embodiment and comparative example uses useless the waste water that mining firm, Longyan is generated
In water, the concentration of copper ion is 10.26mg/L, the concentration of iron ion is 239.71mg/L, the concentration of zinc ion is 96.49mg/
L, the concentration of cadmium ion is 4.12mg/L, the concentration of lead ion is 10.65mg/L.
Embodiment 1
(1) acidleach: 4 parts of waste water are mixed with 0.75 part of hydrochloric acid and 0.25 part of carbonic acid, are heated to 50 DEG C, filter to get filtrate A；
(2) ZSM-8 type molecular sieve is added in filtrate A, wherein filtrate A and ZSM-8 type molecular sieve quality ratio are 50:1,
Mixing speed stirs 2.5h under conditions of being 80r/min, and filter to get filtrate B；
(3) aluminium polychloride and bodied ferric sulfate are added in liquor B, wherein liquor B and aluminium polychloride and polymerised sulphur
Sour weight of iron ratio is 3:0.8:0.2, and low whipping speed stirs 20min under the conditions of being 200r/min, stands 1.5h, and then addition is poly-
Acrylamide, the additive amount of polyacrylamide are 1st/50th of aluminium polychloride and bodied ferric sulfate, and low whipping speed is
4.5h is stirred under the conditions of 25r/min, filter to get filtrate C；
(4) it is added active carbon in liquor C, the mass ratio of liquor C and active carbon is 50:1, low whipping speed 120r/
40min is stirred under the conditions of min, stands 2h, filtering.
Embodiment 2
(1) acidleach: 3 parts of waste water are mixed with 0.8 part of sulfuric acid and 0.2 part of carbonic acid, are heated to 60 DEG C, filter to get filtrate A；
(2) ZSM-11 type molecular sieve is added in filtrate A, wherein filtrate A and ZSM-8 type molecular sieve quality ratio are 40:1,
Low whipping speed stirs 2h under conditions of being 100r/min, and filter to get filtrate B；
(3) aluminium polychloride and bodied ferric sulfate are added in liquor B, wherein liquor B and aluminium polychloride and polymerised sulphur
Sour weight of iron ratio is 2:0.83:0.17, and low whipping speed stirs 10min under the conditions of being 150r/min, stands 1h, and then addition is poly-
Acrylamide, the additive amount of polyacrylamide are 1st/40th of aluminium polychloride and bodied ferric sulfate, and low whipping speed is
3h is stirred under the conditions of 20r/min, filter to get filtrate C；
(4) it is added active carbon in liquor C, the mass ratio of liquor C and active carbon is 40:1, low whipping speed 100r/
30min is stirred under the conditions of min, stands 3h, filtering.
Embodiment 3
(1) acidleach: 5 parts of waste water are mixed with 0.6 part of phosphoric acid and 0.4 part of carbonic acid, are heated to 45 DEG C, filter to get filtrate A；
(2) Silicalite-1 type molecular sieve is added in filtrate A, wherein filtrate A and ZSM-8 type molecular sieve quality ratio is
60:1, low whipping speed stir 3h under conditions of being 50r/min, and filter to get filtrate B；
(3) aluminium polychloride and bodied ferric sulfate are added in liquor B, wherein liquor B and aluminium polychloride and polymerised sulphur
Sour weight of iron ratio is 4:0.67:0.33, and low whipping speed stirs 30min under the conditions of being 300r/min, stands 2h, and then addition is poly-
Acrylamide, the additive amount of polyacrylamide are the sixtieth of aluminium polychloride and bodied ferric sulfate, and low whipping speed is
5h is stirred under the conditions of 50r/min, filter to get filtrate C；
(4) it is added active carbon in liquor C, the mass ratio of liquor C and active carbon is 60:1, low whipping speed 150r/
45min is stirred under the conditions of min, stands 1h, filtering.
Comparative example 1
Compared with Example 1, the acid that step (1) uses is different, and acid used in step (1) is only hydrochloric acid, other steps
It is all the same with condition.
Comparative example 2
Compared with Example 1, molecular sieve type used in step (2) is different, and ZSM-34 type molecule is used in step (2)
Sieve, other steps and condition are all the same.
Comparative example 3
Compared with Example 1, coagulant used in step (3) is different, and coagulant used in step (3) is aluminum sulfate
And frerrous chloride, other steps and condition are all the same.
Comparative example 4
Compared with Example 1, reagent addition sequence and stirring condition difference in step (3), other steps and condition are homogeneous
Together.
4 specific steps of comparative example (3) are as follows: polyacrylamide is added in liquor B, wherein liquor B and polyacrylamide matter
Amount ratio is 3:1, and low whipping speed stirs 20min under the conditions of being 200r/min, stands 1.5h, then adds aluminium polychloride and gathers
The additive amount of conjunction ferric sulfate, aluminium polychloride and bodied ferric sulfate is 1st/50th of polyacrylamide, and low whipping speed is
4.5h is stirred under the conditions of 25r/min, filter to get filtrate C.
Comparative example 5
Compared with Example 1, sequence of steps is different.
(1) acidleach: 4 parts of waste water are mixed with 0.75 part of hydrochloric acid and 0.25 part of carbonic acid, are heated to 50 DEG C, filter to get filtrate A；
(2) it is added active carbon in filtrate A, the mass ratio of filtrate A and active carbon is 50:1, low whipping speed 120r/
40min is stirred under the conditions of min, stands 2h, filter to get filtrate B；
(3) aluminium polychloride and bodied ferric sulfate are added in liquor B, wherein liquor B and aluminium polychloride and polymerised sulphur
Sour weight of iron ratio is 3:0.8:0.2, and low whipping speed stirs 20min under the conditions of being 200r/min, stands 1.5h, and then addition is poly-
Acrylamide, the additive amount of polyacrylamide are 1st/50th of aluminium polychloride and bodied ferric sulfate, and low whipping speed is
4.5h is stirred under the conditions of 25r/min, filter to get filtrate C；
(4) ZSM-8 type molecular sieve is added in liquor C, wherein liquor C and ZSM-8 type molecular sieve quality ratio are 50:1,
Mixing speed stirs 2.5h under conditions of being 80r/min, filters.
Effect example 1
Using the content of metal ion after inductively-coupled plasma spectrometer (ICP) detection processing.
High frequency power: 1.10kW；Atomization gas flow: 0.75L/min；Secondary air amount: 1.50L/min；Plasma air-flow
Amount: 15.0L/min；Analyze pump speed: 15.0r/min；Reading duration: 5.0s；Sample introduction delay: 30.0s.Elemental analysis wavelength are as follows:
Cu-327.395nm；Fe-238.204nm；Zn-213.857nm；Cd-214.439nm；Pb-220.353nm.
Mixture of multi-elements standard liquid is diluted step by step, being configured to content is 5,10,50,100,200,400,600 μ g/L series
Standard uses solution, then successively sample introduction, using mass concentration as abscissa, intensity be ordinate draw each element standard it is bent
Line.Test discovery, the linearly dependent coefficient of each element standard curve is 0.9999, can satisfy analysis and requires, can be accurate
Quantitative determination.
Various examples and comparative examples treated sample is subjected to icp analysis, experimental result is as follows:
| Group | Cu2+μg/L | Fe3+μg/L | Zn2+μg/L | Cd2+μg/L | Pb2+μg/L |
| Embodiment 1 | 8.2 | 18.1 | 18.2 | 0 | 2.6 |
| Embodiment 2 | 9.2 | 26.5 | 26.9 | 0 | 3.5 |
| Embodiment 3 | 8.7 | 23.6 | 21.6 | 0 | 2.7 |
| Comparative example 1 | 36.5 | 75.1 | 69.4 | 12.6 | 28.7 |
| Comparative example 2 | 228.9 | 261.3 | 187.6 | 146.8 | 268.4 |
| Comparative example 3 | 169.8 | 301.4 | 298.7 | 136.8 | 177.6 |
| Comparative example 4 | 436.8 | 326.7 | 287.4 | 367.9 | 254.0 |
| Comparative example 5 | 169.8 | 125.6 | 179.8 | 98.6 | 105.6 |
Integration test result is it is found that the application has following advantages:
1. the present invention has selected suitable mixed acid, effectively adjusting pH value, the processing of heavy metal is provided for the later period good
Good reaction environment.
2. the present invention has selected suitable coagulant and the flocculant used of arranging in pairs or groups with it, and has selected suitable addition
Sequentially, so that flocculating effect greatly enhances.
3. the present invention it is preferable for the treatment effect of heavy metal in mining wastewater, for the metals such as copper, iron, zinc, cadmium, lead from
Son has preferable governance role.
The technical means disclosed in the embodiments of the present invention is not limited only to above-mentioned disclosed technological means, further includes by the above skill
Technical solution composed by art feature any combination.The foregoing is a specific embodiment of the present invention, it is noted that for this
For the those of ordinary skill of technical field, without departing from the principle of the present invention, it can also make several improvements and repair
Decorations, these also will be regarded as protection scope of the present invention.
Claims (10)
1. a kind of processing method for heavy metal wastewater thereby of digging up mine, which comprises the following steps:
(1) acidleach: waste water and acid-mixed are closed, and heating, filter to get filtrate A；
(2) molecular sieve is added in filtrate A, is stirred, filter to get filtrate B；
(3) coagulant stirring is added in liquor B, is stood, and then adds flocculant stirring, filter to get filtrate C；
(4) active carbon is added in liquor C, stirs, stands, filtering.
2. processing method according to claim 1, which is characterized in that in the step (1), by weight, waste water: acid
=3-5:1；Acid is mixed acid, is made of one of sulfuric acid, hydrochloric acid, phosphoric acid and carbonic acid.
3. processing method according to claim 2, which is characterized in that the mixed acid, by weight, carbonic acid account for mixing
Sour parts by weight are 20-40%.
4. preparation method according to claim 1, which is characterized in that in the step (1), heating temperature is 45-60 DEG C；
Adjust pH=3-5.
5. preparation method according to claim 1, which is characterized in that in the step (2), molecular sieve type ZSM-8
One of type molecular sieve, ZSM-11 type molecular sieve, Silicalite-1 type molecular sieve are a variety of.
6. preparation method according to claim 1, which is characterized in that in the step (2), by weight, filtrate A:
Molecular sieve=40-60:1；Mixing speed is 50-100r/min；Mixing time is 2-3h.
7. preparation method according to claim 1, which is characterized in that in the step (3), the coagulant is polymerization chlorine
Change aluminium and bodied ferric sulfate, the flocculant is polyacrylamide, by weight, liquor B: coagulant=2-4:1；Coagulation
Agent: flocculant=40-60:1.
8. preparation method according to claim 1, which is characterized in that in the step (3), stirring speed when adding coagulant
Degree is 150-300r/min, mixing time 10-30min；Time of repose is 1-2h；Mixing speed is 20- when adding flocculant
50r/min, mixing time 3-5h.
9. preparation method according to claim 1, which is characterized in that in the step (4), by weight, liquor C:
Active carbon=40-60:1.
10. preparation method according to claim 1, which is characterized in that in the step (4), mixing speed 100-
150r/min, mixing time 30-45min, time of repose 1-3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493726.6A CN110183020B (en) | 2019-06-06 | 2019-06-06 | Mining heavy metal wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493726.6A CN110183020B (en) | 2019-06-06 | 2019-06-06 | Mining heavy metal wastewater treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110183020A true CN110183020A (en) | 2019-08-30 |
| CN110183020B CN110183020B (en) | 2020-04-24 |
Family
ID=67720866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910493726.6A Active CN110183020B (en) | 2019-06-06 | 2019-06-06 | Mining heavy metal wastewater treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110183020B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018194A (en) * | 2019-12-31 | 2020-04-17 | 南华大学 | Treatment and reuse method of nickel-molybdenum ore beneficiation wastewater |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006314886A (en) * | 2005-05-11 | 2006-11-24 | Takuma Co Ltd | Cleaning method and system of wastewater |
| CN104437677A (en) * | 2013-09-25 | 2015-03-25 | 工信华鑫科技有限公司 | Method for separating cobalt and manganese by virtue of heavy metal adsorption material |
| CN105884132A (en) * | 2016-05-06 | 2016-08-24 | 上海第二工业大学 | Deep treatment method for thallium-containing wastewater of electronic product manufacturing and metallurgical process |
| CN106348484A (en) * | 2015-07-17 | 2017-01-25 | 许中石 | Novel deep mercury removal process |
| CN106746391A (en) * | 2016-11-16 | 2017-05-31 | 环境保护部南京环境科学研究所 | A kind of phosphatization recycling sludge method of disposal |
| CN107214187A (en) * | 2017-07-12 | 2017-09-29 | 浙江省农业科学院 | Cd administering method and its application in field soil |
| CN107417004A (en) * | 2017-05-19 | 2017-12-01 | 北京中科康仑环境科技研究院有限公司 | A kind of method of advanced treating acid waste water containing thallium |
-
2019
- 2019-06-06 CN CN201910493726.6A patent/CN110183020B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006314886A (en) * | 2005-05-11 | 2006-11-24 | Takuma Co Ltd | Cleaning method and system of wastewater |
| CN104437677A (en) * | 2013-09-25 | 2015-03-25 | 工信华鑫科技有限公司 | Method for separating cobalt and manganese by virtue of heavy metal adsorption material |
| CN106348484A (en) * | 2015-07-17 | 2017-01-25 | 许中石 | Novel deep mercury removal process |
| CN105884132A (en) * | 2016-05-06 | 2016-08-24 | 上海第二工业大学 | Deep treatment method for thallium-containing wastewater of electronic product manufacturing and metallurgical process |
| CN106746391A (en) * | 2016-11-16 | 2017-05-31 | 环境保护部南京环境科学研究所 | A kind of phosphatization recycling sludge method of disposal |
| CN107417004A (en) * | 2017-05-19 | 2017-12-01 | 北京中科康仑环境科技研究院有限公司 | A kind of method of advanced treating acid waste water containing thallium |
| CN107214187A (en) * | 2017-07-12 | 2017-09-29 | 浙江省农业科学院 | Cd administering method and its application in field soil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018194A (en) * | 2019-12-31 | 2020-04-17 | 南华大学 | Treatment and reuse method of nickel-molybdenum ore beneficiation wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110183020B (en) | 2020-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101845562B (en) | Improved device and method for producing electrolytic manganese metal by two-ore method | |
| Kobya et al. | Treatment of rinse water from zinc phosphate coating by batch and continuous electrocoagulation processes | |
| CN102730885B (en) | Efficient flocculent precipitate purification method for polymetallic ore benefication wastewater | |
| CN101817575B (en) | Electric flocculation method and device for recovering and processing desulfurized wastewater | |
| CN101948200A (en) | Micro-electrolysis flocculation method for treating acid waste water containing heavy metals in mine | |
| CN102153217B (en) | Electroplating integrated wastewater treatment method | |
| CN104261624B (en) | One gold cyaniding enterprise Treatment of cyanogen-contained wastewater | |
| CN103495589B (en) | A kind of plating waste residue recoverying and utilizing method | |
| CN109205749A (en) | A kind of coagulation-sedimentation equipment and method based on the reflux of sludge concentration tank supernatant | |
| CN108059301B (en) | Method for recovering heavy metals in heavy metal sewage by using activated sludge | |
| CN101648758A (en) | Electroplating recession water processing and Ni-Cu recovering process | |
| Deng et al. | Selective recovery of copper from electroplating sludge by integrated EDTA mixed with citric acid leaching and electrodeposition | |
| CN105130133A (en) | Treatment system and method for water-soluble paint production wastewater | |
| CN113307420B (en) | Method for removing COD (chemical oxygen demand) in metallurgical wastewater | |
| CN110668533A (en) | Method and system for treating alkaline chemical nickel plating wastewater | |
| CN101665293B (en) | Fractional precipitation treatment method of wastewater containing nonferrous metal of nickel, lead and cadmium | |
| CN110183020A (en) | A kind of processing method for heavy metal wastewater thereby of digging up mine | |
| CN104193122B (en) | A kind of gold mine cyaniding waste residue leaching liquor processing method | |
| CN112358095A (en) | Treatment method of EDTA complex nickel wastewater | |
| CN102923891B (en) | Microelectrolysis combined process used for waste water treatment | |
| CN103880218A (en) | Complete cycle technology of vanadium smelting wastewater | |
| CN115072902A (en) | System and process for efficiently removing iron and manganese metal ions in acid mine wastewater | |
| CN212403790U (en) | System for treating comprehensive wastewater generated by anodic oxidation process | |
| CN106927630A (en) | A kind of method of Industrial Wastewater Treatment and valuable metal recovery | |
| CN114656071A (en) | Treatment method and treatment device for zero-discharge recycling of coking wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |