CN104478060B - A kind of process contains medicament and the technique of thallium and other heavy metal wastewater therebies - Google Patents
A kind of process contains medicament and the technique of thallium and other heavy metal wastewater therebies Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/206—Manganese or manganese compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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Abstract
The present invention discloses a kind of process containing the medicament of thallium and heavy metal wastewater thereby, component C primarily of group part A of 1%～90%, group part B and 1%～98% of 1%～90% forms, wherein component A is the combination of one or any two kinds in dimercapto fourth two sodium and derivative thereof, B component is the combination of one or any two kinds in hydroxyl oxime, and component C is the combination of one or any two kinds in dialkyl dithiophosphate. The medicament of the present invention is made into the medicament aqueous solution that mass concentration is 2%～20% after being dissolved in water, be added in the pending waste water containing thallium and heavy metal and/or radioactive substance, form metal complex after fully stirring; Adding a small amount of inorganic flocculating agent containing magnesium, iron, silicon or aluminium and/or polymeric flocculant again, being formed can the flocks of filtering separation; Last filtering separation completes the process to waste water. The medicament of the present invention can realize that water body is deodorized, organics removal, thoroughly removes the function such as thallium and heavy metal.
Description
Technical field
The invention belongs to field of waste water treatment, particularly relate to medicament and technique that a kind of process contains thallium and other heavy metal wastewater therebies.
Background technology
China is more containing Tl mining district, and thallium resource is enriched, and its reserves rank first in the world, and thallium is a kind of pale blue ash-white metal, is soluble in nitric acid, sulfuric acid and water. Under natural condition, thallium is mainly with Tl+Or Tl3+Form exist, abundance is about 0.75mg kg-1, the feature of thallium mainly shows as high dispersing, widely distributed etc. Thallium is a kind of typical dispersed elements, is widely used in fields such as aviation, electronics and health, but thallium is the heavy metal element of a kind of severe toxicity simultaneously. Continually developing utilization along with thallium resource, soil thallium pollution, water body thallium pollution and biological thallium poisoning etc. progressively occurred, caused serious problem of environmental pollution, thallium pollution and the destruction to ecotope thereof hinder a large amount of development and application of thallium resource. Along with the frequent generation of thallium pollution accident in recent years, thallium pollution should cause the extensive concern of people. Thallium, as a kind of emerging pollutant, has become the emphasis of research both at home and abroad, it is necessary to take strict effective measure, to control quantity and the approach that thallium enters environment.
At present, the major measure administered for the thallium pollution in water body has: (1) adds " sponge adsorbent " etc. in contaminated water body, is adsorbed by the thallium in water body, reduces the activity rate of thallium and makes it precipitate; (2) toxicity of monovalence thallium is higher than thallic activity, it is possible to by control temperature and pH etc., promotes that monovalence thallium is converted into trivalent thallium, to reduce thallium toxicity.In conjunction with actual waste water containing thallium treatment process, its process technology mainly comprises: absorption method, oxidation flocculation method, ion exchange method etc.
Absorption method is the administering method of thallium pollution in a kind of effective water body, mainly utilizes the characteristic of the high-specific surface area of sorbent material to be realized the removal of thallium by ion exchange or physics chemical action etc. Conventional sorbent material has gac and wilkinite etc., and the specific surface area of gac is big, and absorption property is good, and suitable treatment is applicable to the separation and consentration of trace or ultra-trace thallium in the lower S & W solution of impurity interference. Someone adopts the technique that pre-treatment, coagulating sedimentation and activated carbon column Filtration Adsorption combine, and have studied take columnar activated carbon as sorbent material, effectively runs 70h, and the clearance of thallium can reach 83%. Wilkinite is the porous silicoaluminate mineral of a kind of laminate structure, has the features such as specific surface area is big, absorption property is good, but bentonite origin soil loading capacity is lower, and adsorption rate is slow, and is not easy separation in water, it is necessary to carry out modification.
Oxidizing, flocculating be the colloidalmaterial net utilizing flocculation agent to produce catch in water containing thallium and other heavy metals. Tl+Compare Tl3+Stable, Tl+PH value is insensitive, and Tl3+Facile hydrolysis under certain pH value. The complex compound stability that Tl is formed with most of ligand is all more weak, but can form the strong ligand of stability, such as stable TlCl2 +And TlCl4 -Ligand. Can as except thallium flocculation agent have inorganic coagulant and organic coagulants two type, wherein inorganic coagulant is mainly molysite and aluminium salt. Organic coagulants is then some polymer binders, has very big specific surface area, such that it is able to reach Coagulation and Adsorption effect, such as polymerize aluminum chloride, polymeric ferric aluminum, poly-propyl-dimethyl ammonium chloride etc., organic coagulants uses usually used as coagulant aids.
Not only enrichment times height during Strong acid ion-exchanger enrichment underwater trace thallium, reaches as high as 103-104, also it is a kind of important method that the valency state to thallium in environment is analyzed simultaneously. Luo Jinxin research shows, TBP extraction drench magnetic microsphere can not only Absorption quantity trace thallium, when taking 0.2% sulfurous acid and 0.4% xitix as resolving agent, it may be achieved thallium de-attached fast, the rate of recovery is up to being 96%-100%.
Being directed to the pollution of thallium at present and administer and achieved above-mentioned research progress, but still there are some problems, such as complex treatment process, cost height, processes not thorough. Therefore, study that a kind for the treatment of process is simple, cost is low, medicament and the technique of thallium and other heavy metal have seemed particularly important in thorough process waste water.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, it is provided that a kind of process contains medicament and the technique of thallium and other heavy metal wastewater therebies.
The technical scheme that the present invention proposes is:
A kind of process is containing the medicament of thallium and other heavy metal wastewater therebies, component C primarily of group part A of massfraction 1%～90%, group part B and 1%～98% of 1%～90% forms, wherein component A is the composition of one or any two kinds in dimercapto fourth two sodium and derivative thereof, B component is the composition of one or any two kinds in hydroxyl oxime (such as ketoxime, aldoxime etc.), and component C is the composition of one or any two kinds in dialkyl dithiophosphate.
Above-mentioned medicament, it is preferable that, described dimercapto fourth two sodio-derivative is the one in 4-methyl-dimercapto fourth two sodium, 2-methyl-dimercapto fourth two sodium and dimercaprol dimercaptopropanol.
Above-mentioned medicament, it is preferable that, described hydroxyl oxime is the one in 5,8-diethyl-7-hydroxyl-6-dodecane ketoxime, 2-hydroxyl-5-nonylbenzophenone oxime, the secondary octyloxybenzophenone oxime of 2-hydroxyl-4-, 5-nonyl salicyl aldooxime and 5-dodecylsalicylaldoxime.
Above-mentioned medicament, it is preferable that, described dialkyl dithiophosphate is that dibutyl dithiophosphates, dipropyl disulfide are for the one in phosphoric acid salt, diisopropyl dithiophosphate, diisobutyl dithiophosphates and diamyl dithiophosphates.
Above-mentioned medicament, preferably, described dibutyl dithiophosphates is dibutyl phosphorodithioic acid sodium, described dipropyl disulfide is that dipropyl disulfide is for potassiumphosphate for phosphoric acid salt, described diisopropyl dithiophosphate is that diisopropyl disulfide is for sodium phosphate, described diisobutyl dithiophosphates is diisobutyl phosphorodithioic acid sodium, and described diamyl dithiophosphates is diamyl phosphorodithioic acid sodium.
Above-mentioned medicament, it is preferable that, the massfraction that described group of part A content accounts for medicament is 3%～25%, and the massfraction that described group of part B content accounts for medicament is 7%～85%, and it is 12%～87% that described component C content accounts for the massfraction of medicament.
As a total invention design, the present invention also provides a kind of above-mentioned chemicals treatment containing the technique of thallium and other heavy metal wastewater therebies: be mixed with the medicament aqueous solution that mass concentration is 2%～20% after described medicament is dissolved in water, then the medicament aqueous solution is added in the pending waste water containing thallium and other heavy metals and/or radioactive substance, after fully stirring, forms metal complex; A small amount of inorganic flocculating agent containing magnesium, iron, silicon or aluminium and/or polymeric flocculant is added again in waste water, can the flocks of filtering separation to be formed; Last filtering separation completes the process to waste water.
Above-mentioned technique, it is preferable that, it is containing thallium and other heavy metals and/or radioactive substance Theoretical Mass 0.5～2 times in waste water that medicament adds the quality in waste water to; Described abundant churning time is 1min～15min.
Above-mentioned technique, it is preferable that, described inorganic flocculating agent is the one in magnesium hydroxide, bodied ferric sulfate, polymerize aluminum chloride, polymeric aluminium-silica acid iron; Described polymeric flocculant is polyacrylamide.
Above-mentioned technique, it is preferable that, at least containing thallium, Pb in described heavy metal-containing waste water2+、Cd2+、Cr3+、Hg2+、As2+Middle a kind of ion and at least containing thallium, Pb2+、Cd2+、As2+、Zn2+、Cu2+、Ni2+、Hg2+、Fe3+、Fe2+、Cr3+、Ca2+、Mn2+、Mg2+In four kinds of ions; Described radioactive wastewater at least contains90Sr、137Cs、131I、238U、232One in Th.
Compared with prior art, it is an advantage of the current invention that:
1) the present invention's is polycomponent compound prescription for the treatment of the medicament containing thallium and other heavy metal wastewater therebies, it achieves the mutual supplement with each other's advantages of each single medicament, there is collaborative promoter action, the functions such as water body is deodorized, organics removal, removal negatively charged ion can be realized simultaneously. Application experiment according to us, the medicament of the present invention and treatment process can remove total thallium, Pb in same waste water system simultaneously2+、Cd2+、As2+、Zn2+、Cu2+、Hg2+、Ca2+、Mg2+Deng tens metal ion species, metal oxide, negatively charged ion (SO also can be removed4 2-、Cl-、F-、CO3 2-) etc.
2) medicament of the present invention can process the waste water containing thallium and other heavy metals of high density, middle lower concentration and extremely low concentration, especially to the big water yield (on every day ten thousand stere waste water), lower concentration (from tens milligrams to tens milligrams per liter waste water), polycomponent compound can fast, thoroughly deal with containing thallium and other heavy metal wastewater thereby, without the need to sub-prime staging treating, save plant investment.
3) chemicals treatment of the present invention is simple containing the technique of thallium and other heavy metal wastewater therebies, and place takies few, and processing speed is fast, and the processing reaction time only needs 1～15min, it is possible to process mining, ore dressing, metallurgy, chemical industry acidity, alkaline waste water in a large number; Plating, electronics, nuclear industry radioactive substance etc. are containing heavy metal and radioactive wastewater, it is possible to realize control automatically and process automatically.
4) medicament of the present invention adopts complexing agent based on three kinds of organic sequestering agents, make the heavy metal in itself and waste water and radioactive substance complexing, making heavy metal and radioactive substance be able to rapid sedimentation to remove, thus the medicament of the present invention (as leaks out containing low-activity element in heavy metal ion (such as thallium, lead, cadmium, zinc, copper, nickel, cobalt, iron, manganese, chromium, mercury, arsenic etc.) and nuclear power plant's nuclear reactor cooling water waste water multiple90Sr、137Cs、131I、238U、232The radioactive substances such as Th) can chelating-flocculating settling, high density, lower concentration all disposable can be removed containing thallium and other heavy metal wastewater therebies, reach discharge or recycle water standard, and after the sediment collection of chelate heavy metals, by dilute hydrochloric acid backwash, it is possible to make sequestrant desorb, reuse;After heavy metal accumulation, the available precipitator method or electrolytic process reclaim, it is achieved two times heavy metal resources circulation comprehensive utilizes.
Embodiment
Unless otherwise defined, the implication that all technical terms and the those skilled in the art hereinafter used understand usually is identical. Technical term used herein is the object in order to describe specific embodiment, is not be intended to limit the scope of the invention.
Apart from special instruction, all ingredients used in the present invention, raw material are can commodity commercially or can by the obtained product of known method.
Embodiment 1: process containing thallium comprehensive wastewater
A kind of the present invention for the treatment of the compound (the self-defined code name of RX-1) containing thallium and other heavy metal wastewater therebies, being placed in hybrid reaction machine primarily of the 5,8-diethyl-7-hydroxyl-6-dodecane ketoxime of 4-methyl-dimercapto fourth two sodium of 7.8kg, 32kg, the 5-dodecylsalicylaldoxime of 20.2kg and the dibutyl phosphorodithioic acid sodium of 40kg mixes obtained.
Utilize inorganic thallium, Mn, Zn, Cu, Hg, Cd, Pb, Cr, Ni salt, it is mixed with as shown in table 1 below containing thallium and contain the waste water sample of contents of many kinds of heavy metal ion, takes out 100ml water sample, be placed in beaker stand-by.
After adding the RX-1 medicament aqueous solution that 100mL mass concentration is 2% in stand-by waste water sample, namely a large amount of metal complex precipitation is produced after stirring 5min, add 8ml, 1% concentration hydrogen magnesium oxide inorganic flocculating agent again, stir 5 minutes, then adding 0.5% polyacrylamide 5ml, stir 5 minutes, filtering separation removes sediment, clear water is carried out atomic absorption spectrochemical analysis, has following results of comparison (see table 1).
Table 1: the wastewater treatment result of embodiment 1
| Waste water | Total Tl | Mn2+ | Zn2+ | Cu2+ | Hg2+ | Cd2+ | Pb2+ | Cr3+ | Ni2+ |
| Waste water (mg/L) before process | 6 | 3700 | 5600 | 650 | 580 | 2000 | 2659 | 487 | 1760 |
| Processed waste water (mg/L) | 0.002 | 0.9 | 0.5 | 0.3 | 0.01 | 0.1 | 0.2 | 0.1 | 0.2 |
As shown in Table 1, waste water after chemicals treatment of the present invention all reaches and lower than GB (GB8987-88) requirement containing heavy metal concentration, achieve process up to standard, the medicament of the present invention simultaneously has germicidal action, water body deodorizing, eliminates organism and negatively charged ion, after sediment is collected, by dilute hydrochloric acid backwash, make sequestrant desorb, reusable. After heavy metal accumulation, reclaim by the precipitator method or electrolytic process, it is achieved that two times heavy metal resources circulation comprehensive utilizes.
Embodiment 2: zinc metallurgy waste water treatment
The process of a kind of the present invention, containing the compound (the self-defined code name of RX-2) of thallium and other heavy metal wastewater therebies, is placed in mixing machine for potassiumphosphate and 47kg diisobutyl phosphorodithioic acid sodium and mixes primarily of the 2-hydroxyl-5-nonylbenzophenone oxime of 4kg dimercaprol dimercaptopropanol, 31kg, 18kg dipropyl disulfide and make.
To 100m3Waste water (the metallurgical waste water of zinc, washing water or press filtration water, contained by it as shown in table 2 below containing thallium and other heavy metals) adds the solution 10m that mass concentration is the RX-2 compound of 3%3Namely produce a large amount of metal complex precipitation after stirring 5min, then add 1.5% magnesium hydroxide inorganic flocculating agent 0.5m3, stir 5 minutes, finally add polyacrylamide 0.5% flocculation agent 0.2m3, stir 5 minutes. Filtering separation removes sediment, and clear water is carried out atomic absorption spectrochemical analysis, and results of comparison is see table 2.
Table 2: the waste water technical scale result (unit: mg/L) of embodiment 2
As seen from table, the zinc of high density passes through sedimentation, it is possible to 99% removes, and other ion also reaches and exceeded emission standard; Negatively charged ion SO4 2-、Cl-、F-、CO3 2-Obviously reduce Deng also;The metal sediment produced is by dilute hydrochloric acid backwash, it is possible to makes sequestrant desorb, reuses. And after heavy metal accumulation, recycle by the precipitator method.
Embodiment 3: the process of metallurgical waste water containing thallium
A kind of the present invention for the treatment of the compound (the self-defined code name of RX-3) containing thallium and other heavy metal wastewater therebies, be placed in mixing machine primarily of 2-methyl-dimercapto fourth two sodium of 25kg, the secondary octyloxybenzophenone oxime of 2-hydroxyl-4-of 28kg and 47kg diisopropyl disulfide for sodium phosphate and mix and make.
For the metallurgical waste water of the present embodiment, drop into the compound (RX-3) of various dose respectively, its dosage is containing between 0.5～1.5 times of heavy metal theoretical amount, carries out adding and tests with the relation contain heavy metal and processing effect, and result is as shown in table 3 below.
Table 3: compound add-on is on the impact of process effect
From table 3, along with the increase of compound add-on, clearance increases thereupon. Within the scope of 0.5～1.5 times of theoretical add-on, clearance increases rapidly; When add-on is 1.5 times of theoretical consumptions, four kinds of ion residual concentrations are all well below wastewater discharge standard.
Embodiment 4: the process of high density waste water containing thallium
A kind of the present invention for the treatment of the compound (the self-defined code name of RX-4) containing thallium and other heavy metal wastewater therebies, mix for sodium phosphate by the 2-of 16kg methyl-dimercapto fourth two sodium, the 5-nonyl salicyl aldooxime of 35kg and the diisopropyl disulfide of 49kg and make.
Get the waste water sample of 800mL containing thallium concentration 50mg/L, the solution 3.2mL that mass concentration is the RX-4 compound of 3% is added in waste water, namely thallium complex compound sediment is produced after stirring 10min, stir 8 minutes, then 0.5% polyacrylamide 3ml flocculation agent is added, stir 5 minutes, then leave standstill 10min. Getting supernatant liquid, clear water is carried out atomic absorption spectrochemical analysis content measuring, result thallium concentration is 0.003mg/L, reaches emission standard requirement.
Embodiment 5: the process of mine waste water containing thallium
The compound (the self-defined code name of RX-5) containing thallium and other heavy metal wastewater therebies for the treatment of complexity of a kind of the present invention, is mixed by the 5-nonyl salicyl aldooxime of the 2-of 3kg methyl-dimercapto fourth two sodium, 85kg and 12kg diamyl phosphorodithioic acid sodium and makes.
The pending mine wastewater of the present embodiment is mainly derived from the plumbous actual mining production of zinc-silver ore dressing, can be divided into mining waste water and ore dressing operation wastewater by production process, can be divided into acid waste water, alkaline waste water etc. by waste water ph. The treatment process of the present embodiment is identical with above-described embodiment 1; Partially acidic mine wastewater pH value and containing heavy metal content result in table 4.
Table 4: acid wastewater in mine technical scale result
| Waste water | pH | Total Tl | Cu2+ | Fe3+ | Cd2+ | Pb2+ | Fe2+ | SO4 2- |
| Waste water (mg/L) before process | 2.34 | 3.75 | 2.40 | 434.5 | 0.78 | 0.67 | 125.5 | 27.06 |
| Processed waste water (mg/L) | 2.52 | 0.001 | 0.20 | 0.47 | 0.05 | 0.04 | 0.50 | 1.46 |
Acid waste water after the present embodiment processes has accomplished industrial recycling.
Embodiment 6: simulation radioactive wastewater process
The compound (the self-defined code name of RX-6) containing thallium and other heavy metal wastewater therebies for the treatment of complexity of a kind of the present invention, is mixed by the diisobutyl phosphorodithioic acid sodium of the secondary octyloxybenzophenone oxime of the 2-hydroxyl-4-of the 4-of 6kg methyl-dimercapto fourth two sodium, 7kg and 87kg and makes.
Get 100 milliliters containing strontium (Sr2+) the simulation radioactive wastewater sample (Sr of concentration 25mg/L tracer element2+With radioelement90Sr chemical property is similar, can be used as tracer element simulation radioactive substance and tests), add the RX-6 compound 150mL that mass concentration is 3%, stir 10min, then leave standstill 12min.Add 1% polymeric aluminium-silica acid iron 3ml flocculation agent again, stir 8 minutes, then leave standstill 10min. Getting supernatant liquid, clear water is carried out atomic absorption spectrochemical analysis content, result strontium concentration is 0.0005mg/L, reaches radioactive wastewater emission standard requirement.
Claims (7)
1. a process is containing the medicament of thallium and other heavy metal wastewater therebies, it is characterized in that: the component C primarily of group part A of massfraction 3%～25%, group part B and 12%～87% of 7%～85% forms, wherein component A is the composition of one or any two kinds in dimercapto fourth two sodium and derivative thereof, B component is the composition of one or any two kinds in hydroxyl oxime, and component C is the composition of one or any two kinds in dialkyl dithiophosphate;
Described dimercapto fourth two sodio-derivative is 4-methyl-dimercapto fourth two sodium, 2-methyl-dimercapto fourth two sodium and dimercaprol dimercaptopropanol;
Described hydroxyl oxime is 5,8-diethyl-7-hydroxyl-6-dodecane ketoxime, 2-hydroxyl-5-nonylbenzophenone oxime, the secondary octyloxybenzophenone oxime of 2-hydroxyl-4-, 5-nonyl salicyl aldooxime and 5-dodecylsalicylaldoxime.
2. medicament as claimed in claim 1, it is characterised in that: described dialkyl dithiophosphate is that dibutyl dithiophosphates, dipropyl disulfide are for the one in phosphoric acid salt, diisopropyl dithiophosphate, diisobutyl dithiophosphates and diamyl dithiophosphates.
3. medicament as claimed in claim 2, it is characterized in that: described dibutyl dithiophosphates is dibutyl phosphorodithioic acid sodium, described dipropyl disulfide is that dipropyl disulfide is for potassiumphosphate for phosphoric acid salt, described diisopropyl dithiophosphate is that diisopropyl disulfide is for sodium phosphate, described diisobutyl dithiophosphates is diisobutyl phosphorodithioic acid sodium, and described diamyl dithiophosphates is diamyl phosphorodithioic acid sodium.
4. a chemicals treatment as according to any one of claim 1-3 contains the technique of thallium and other heavy metal wastewater therebies, it is characterized in that: after described medicament is dissolved in water, be mixed with the medicament aqueous solution that mass concentration is 2%～20%, then the medicament aqueous solution is added in the pending waste water containing thallium and other heavy metals and/or radioactive substance, after fully stirring, forms metal complex; A small amount of inorganic flocculating agent containing magnesium, iron, silicon or aluminium and/or polymeric flocculant is added again in waste water, can the flocks of filtering separation to be formed; Last filtering separation completes the process to waste water.
5. technique as claimed in claim 4, it is characterised in that: it is containing thallium and other heavy metals and/or radioactive substance Theoretical Mass 0.5～2 times in waste water that medicament adds the quality in waste water to; Described abundant churning time is 1min～15min.
6. technique as claimed in claim 4, it is characterised in that: described inorganic flocculating agent is the one in magnesium hydroxide, bodied ferric sulfate, polymerize aluminum chloride, polymeric aluminium-silica acid iron; Described polymeric flocculant is polyacrylamide.
7. technique as claimed in claim 4, it is characterised in that: at least containing thallium, Pb in described heavy metal-containing waste water2+、Cd2+、Cr3+、Hg2+、As2+Middle a kind of ion and at least containing thallium, Pb2+、Cd2+、As2+、Zn2+、Cu2+、Ni2+、Hg2+、Fe3+、Fe2+、Cr3+、Ca2+、Mn2+、Mg2+In four kinds of ions; Described radioactive wastewater at least contains90Sr、137Cs、131I、238U、232One in Th.
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| CN104882185B (en) * | 2015-04-08 | 2017-06-30 | 武汉网绿环境技术咨询有限公司 | The flocculant and its application method of radioactive element in a kind for the treatment of sewage |
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