CN103112973A - Method for removing low-concentration T1 and Sb compound heavy metal pollution in surface water - Google Patents
Method for removing low-concentration T1 and Sb compound heavy metal pollution in surface water Download PDFInfo
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Abstract
The invention relates to a drinking water purification and treatment method, and particularly relates to a method for removing low-concentration T1 and Sb compound heavy metal pollution in surface water, aiming at solving the technical problem that a water treatment method aiming at sudden T1 and Sb compound heavy metal pollution is not provided at present. The method comprises the following steps of: adjusting the pH value of raw water, adding a potassium permanganate composite (PPC) and polymeric ferric to the water body, adjusting the pH value after coagulating sedimentation and standing filtration, and yielding water. When T1 in the raw water exceeds standard by 2 to 3 times and Sb exceeds standard by 3 to 4 times, the addition amount of the PPC is above 3mg/L, and the addition amount of the polymeric ferric is above 40mg/L, so that the removal rates of the T1 and Sb respectively reach 95% and 90%. As only chemical agents are added according to the method, the cost is saved, and the operation is convenient; and facilities for infrastructure construction do not need to be additionally arranged, and therefore, the method can be used as an emergency processing scheme aiming at the thallium and stibium compound pollution for conventional water plants.
Description
Technical field
The present invention relates to a kind of drink water purifying treatment process, be specifically related to a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water.
Background technology
Sudden heavy metal contamination event frequently occurs in recent years.The toxicity of Tl is greater than Hg, Cd, Pb, Zn and Cu, Tl and compound thereof have been put into the monitoring index system of water body priority pollutants Black List and China's water environment quality standard (GB3838-2002), and in environment, Tl produces grave danger to animal and human's class environment.Tl derives from atmosphere and reveals, and sewage discharge contains Tl and enriches Areas For Coal burning etc.Tl is mainly in the cytolemma mass transfer process and the K+ competition to the harm of human body, suppresses plastosome phosphoric acid oxygenizement, affects the heme metabolism.
Sb is not human essential elements, and Sb and compound thereof can be combined by sulfydryl in human body, disturbs in body enzymic activity or destroys that in cell, ionic equilibrium makes cell hypoxia and causes that body metabolism is disorderly.The major industry purposes of Sb has fire extinguishing to postpone additive, the industrial uses such as potting.The existing effective ways of removing Sb in water surrounding have enhanced coagulation, absorption etc." drinking water sanitary standard " (GB5749-2006) limit value of middle Tl is 0.1 μ g/L, and the limit value of Sb is 5 μ g/L.
Domestic pollution Xinhua News Agency about river, north, drinking water resource Pearl River Delta tributary thallium reported in 2010, about near the pollution of antimony in the drinking water resource also report to some extent Xihuashan mine of Hunan.Therefore, there is the risk of the combined pollution of potential sudden Tl and Sb due to the discharging of trade effluent near the Drinking Water for Residents safety in Tl and Sb mining area, therefore need seeks new processing condition as emergency method.
Summary of the invention
The present invention is for solving the technical problem of the water treatment method that there is no at present a kind of Compound Heavy Metals for sudden Tl and Sb, and a kind of method of removing Tl and Sb Compound Heavy Metals in surface water is provided.
A kind of method of lower concentration Tl and Sb Compound Heavy Metals of removing in surface water of the present invention is carried out according to the following steps:
One, regulating former water pH value is 5.5～6.5, then adds permanganate composite chemical for being no more than 3mg/L or 3mg/L～6mg/L with permanganate composite chemical mass concentration in water body in water body, mixes 1min～2min; Wherein when thallium pollution concentration in water body when being no more than 0.2 μ g/L, the dosage of permanganate composite chemical is no more than 3mg/L, when thallium pollution concentration in water body was 0.2 μ g/L～0.3 μ g/L, the dosage of permanganate composite chemical was controlled to be 3mg/L～6mg/L;
Two, add Polyferric Sulfate in the water body of Polyferric Sulfate mass concentration after as 30mg/L～40mg/L or 40mg/L～60mg/L to step 1 in the water body, then flow into flocculation tank, after reaction 1min～2min, change settling tank over to, process 0.5h～2.5h; Wherein when antimony pollution concentration in water body when being no more than 15 μ g/L, the dosage of Polyferric Sulfate is 30mg/L～40mg/L, when antimony pollution concentration in water body was 15 μ g/L～20 μ g/L, the dosage of Polyferric Sulfate was 40mg/L～60mg/L;
Three, the water outlet after step 2 after filtering, is regulated in sand filtration pH value to 6.5～8.5, water outlet.
The present invention is directed near the potential sudden Tl in the Drinking Water for Residents water source in Tl and Sb mining area and the Compound Heavy Metals problem of Sb, remove the combined pollution of thallium and antimony in source water by changing permanganate composite chemical (PPC) and Polyferric Sulfate dosage, in the present invention, Polyferric Sulfate is to Sb
3+And Sb
5+Removal mechanism different, show as pH lower than 5 the time, Fe is with Fe (OH)
2 +And Fe (OH)
2+Form exist, along with the increase of pH, Fe is with Fe (OH)
4 -Form exist.At pH near 5 o'clock, Sb
3+Having form is neutral (HSbO
2), Sb
5+The form that exists be SbO
3 -, Polyferric Sulfate is absorption and co precipitation to antimonious removal mechanism, and is ionic linkage absorption and co precipitation to antimonic removal mechanism.In the present invention, the permanganate composite chemical hydrolysate is mainly electrostatic adhesion, δ-MnO to the removal mechanism of Tl
2Point of zero electric charge (pH
zpc) between 1.5 and 4.5, as former water pH all higher than δ-MnO
2Zero point, cause the aobvious electronegativity in surface, strengthen Tl by electrostatic adhesion
+Removal; Tl
+And soil ulmin (HAs) has faint complexing action, and soil ulmin is formed Tl-HAs-MnO2 or Tl-HAs-HFO system and removes by precipitation by hydrous iron oxide or manganese oxide hydrate absorption, and increasing PPC dosage will increase δ-MnO
2Loading capacity is improved in the surface adsorption position, increases the touch opportunity of surface and pollutent, thereby promotes the absorption to heavy metal in water.Tl exceed standard 2 to 3 times (0.2 μ g/L～0.3 μ g/L) in source water, when Sb exceeds standard 3 to 4 times (15 μ g/L～20 μ g/L), more than PPC throwing amount is controlled at 3mg/L, more than the Polyferric Sulfate dosage is controlled at 40mg/L, coagulating agent is elected Polyferric Sulfate as, add PPC before coagulation, former water is after coagulating sedimentation, more than standing 30min, then pass through filter, the filtration water outlet is suitably regulated pH and is guaranteed that content and the pH value of water outlet heavy metal Tl and Sb satisfy the drinking water sanitary standard requirement, and the present invention only adds the processing mode of chemical agent, save cost, easy to operate, needn't additionally increase the capital construction facility, can be used as traditional water factory for thallium and antimony combined pollution emergence treatment scheme.
Description of drawings
Fig. 1 is the graphic representation that embodiment 1～embodiment 6 a kind of removes Sb content detection in water outlet after in surface water, the method for lower concentration Tl and Sb Compound Heavy Metals is processed; Wherein
The curve of Sb content detection in water outlet when being 30mg/L for the dosage of Polyferric Sulfate,
The curve of Sb content detection in water outlet when being 40mg/L for the dosage of Polyferric Sulfate;
Fig. 2 is the graphic representation that embodiment 1～embodiment 6 a kind of removes Tl content detection in water outlet after in surface water, the method for lower concentration Tl and Sb Compound Heavy Metals is processed; Wherein
The curve of Tl content detection in water outlet when being 30mg/L for the dosage of Polyferric Sulfate,
The curve of Tl content detection in water outlet when being 40mg/L for the dosage of Polyferric Sulfate;
Fig. 3 is the graphic representation that embodiment 7～embodiment 12 a kind of removes Sb content detection in water outlet after in surface water, the method for lower concentration Tl and Sb Compound Heavy Metals is processed; Wherein
The curve of Sb content detection in water outlet when being 40mg/L for the dosage of Polyferric Sulfate,
The curve of Sb content detection in water outlet when being 50mg/L for the dosage of Polyferric Sulfate;
Fig. 4 is the graphic representation that embodiment 7～embodiment 12 a kind of removes Tl content detection in water outlet after in surface water, the method for lower concentration Tl and Sb Compound Heavy Metals is processed; Wherein
For the dosage of Polyferric Sulfate is the curve of Tl content detection in the 40mg/L water outlet,
The curve of Tl content detection in water outlet when being 50mg/L for the dosage of Polyferric Sulfate.
Embodiment
Technical scheme of the present invention is not limited to following embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: present embodiment a kind of removes in surface water the method for lower concentration Tl and Sb Compound Heavy Metals and carries out according to the following steps:
One, regulating former water pH value is 5.5～6.5, then adds permanganate composite chemical for being no more than 3mg/L or 3mg/L～6mg/L with permanganate composite chemical mass concentration in water body in water body, mixes 1min～2min; Wherein when thallium pollution concentration in water body when being no more than 0.2 μ g/L, the dosage of permanganate composite chemical is no more than 3mg/L, when thallium pollution concentration in water body was 0.2 μ g/L～0.3 μ g/L, the dosage of permanganate composite chemical was controlled to be 3mg/L～6mg/L;
Two, add Polyferric Sulfate in the water body of Polyferric Sulfate mass concentration after as 30mg/L～40mg/L or 40mg/L～60mg/L to step 1 in the water body, then flow into flocculation tank, after reaction 1min～2min, change settling tank over to, process 0.5h～2.5h; Wherein when antimony pollution concentration in water body when being no more than 15 μ g/L, the dosage of Polyferric Sulfate is 30mg/L～40mg/L, when antimony pollution concentration in water body was 15 μ g/L～20 μ g/L, the dosage of Polyferric Sulfate was 40mg/L～60mg/L;
Three, the water outlet after step 2 after filtering, is regulated in sand filtration pH value to 6.5～8.5, water outlet.
Present embodiment is near the potential sudden Tl in the Drinking Water for Residents water source in Tl and Sb mining area and the Compound Heavy Metals problem of Sb, remove the combined pollution of thallium and antimony in source water by changing permanganate composite chemical (PPC) and Polyferric Sulfate dosage, in present embodiment, Polyferric Sulfate is to Sb
3+And Sb
5+Removal mechanism different, show as pH lower than 5 the time, Fe is with Fe (OH)
2 +And Fe (OH)
2+Form exist, along with the increase Fe of pH with Fe (OH)
4 -Form exist.At pH near 5 o'clock, Sb
3+Having form is neutral (HSbO
2), Sb
5+The form that exists be SbO
3 -, Polyferric Sulfate is absorption and co precipitation to antimonious removal mechanism, and is ionic linkage absorption and co precipitation to antimonic removal mechanism.In present embodiment, the permanganate composite chemical hydrolysate is mainly electrostatic adhesion, δ-MnO to the removal mechanism of Tl
2Point of zero electric charge (pH
zpc) between 1.5 and 4.5, as former water pH all higher than δ-MnO
2Zero point, cause the aobvious electronegativity in surface, strengthen Tl by electrostatic adhesion
+Removal; Tl
+And soil ulmin (HAs) has faint complexing action, and soil ulmin is formed Tl-HAs-MnO2 or Tl-HAs-HFO system and removes by precipitation by hydrous iron oxide or manganese oxide hydrate absorption, and increasing PPC dosage will increase δ-MnO
2Loading capacity is improved in the surface adsorption position, increases the touch opportunity of surface and pollutent, thereby promotes the absorption to heavy metal in water.Tl exceed standard 2 to 3 times (0.2 μ g/L～0.3 μ g/L) in source water, when Sb exceeds standard 3 to 4 times (15 μ g/L～20 μ g/L), more than PPC throwing amount is controlled at 3mg/L, more than the Polyferric Sulfate dosage is controlled at 40mg/L, coagulating agent is elected Polyferric Sulfate as, add PPC before coagulation, former water is after coagulating sedimentation, more than standing 30min, then pass through filter, the filtration water outlet is suitably regulated pH and is guaranteed that content and the pH value of water outlet heavy metal Tl and Sb satisfy the drinking water sanitary standard requirement, and present embodiment only adds the processing mode of chemical agent, save cost, easy to operate, needn't additionally increase the capital construction facility, can be used as traditional water factory for thallium and antimony combined pollution emergence treatment scheme.
Embodiment two: what present embodiment was different from embodiment one is: adopting nitric acid to regulate former water pH value in step 1 is 5.5～6.5, and other step and parameter are identical with embodiment one.
Embodiment three: what present embodiment was different from embodiment one or two is: regulating pH value pH value to the water body in step 1 is 5.7～6.1, and other step and parameter are identical with embodiment one or two.
Embodiment four: what present embodiment was different from one of embodiment one to three is: in step 1 when thallium pollution concentration in water body when being no more than 0.2 μ g/L, the dosage of permanganate composite chemical is 2mg/L～3mg/L, and other step and parameter are identical with embodiment three.
Embodiment five: what present embodiment was different from one of embodiment one to four is: in step 1 when thallium pollution concentration in water body is 0.2 μ g/L～0.3 μ g/L, the dosage of permanganate composite chemical is controlled to be 4mg/L～6mg/L, and other step and parameter are identical with one of embodiment one to four.
Embodiment six: what present embodiment was different from one of embodiment one to five is: in step 2 in water body antimony pollution concentration when being no more than 15 μ g/L, the dosage of Polyferric Sulfate is 35mg/L～40mg/L, and other step and parameter are identical with one of embodiment one to five.
Embodiment seven: what present embodiment was different from one of embodiment one to six is: when in step 2, in water body, antimony pollution concentration is 15 μ g/L～20 μ g/L, the dosage of Polyferric Sulfate is 40mg/L～50mg/L, and other step and parameter are identical with one of embodiment one to six.
Embodiment eight: what present embodiment was different from one of embodiment one to seven is: change settling tank pond aftertreatment 1.5h in step 2 over to, other step and parameter are identical with one of embodiment one to seven.
Embodiment nine: what present embodiment was different from one of embodiment one to eight is: pH value to 6.5～8.5 are regulated in the water outlet after adopting caustic soda soln or soda-lime solution with step 2 in step 3 after sand filtration is filtered, other step and parameter are identical with one of embodiment one to eight.
Embodiment ten: what present embodiment was different from one of embodiment one to nine is: regulating pH value pH value to the water body in step 3 is 7, and other step and parameter are identical with one of embodiment one to nine.
With following verification experimental verification beneficial effect of the present invention:
Embodiment 1, a kind of method of removing Tl and Sb Compound Heavy Metals in surface water is characterized in that the method carries out according to the following steps:
One, regulating water body pH is 6 to water body pH, and then the permanganate composite chemical mass concentration adds permanganate composite chemical to the thallium pollution concentration as 2mg/L in the water body of 0.19 μ g/L in the water body, mixes 1min;
Two, the antimony pollution concentration of Polyferric Sulfate mass concentration after as 30mg/L to step 1 adds Polyferric Sulfate in 14.3 μ g/L water bodys in the water body, then changes flocculation tank over to, after reaction 1min, changes settling tank over to, processes 1h;
Three, the water body after step 2 being regulated pH after sand filtration is filtered is 7, water outlet.
A kind of method that embodiment 2, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 1 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.19 μ g/L as 2.5mg/L, mix 1min, other step and parameter are identical with embodiment 1.
A kind of method that embodiment 3, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 1 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.19 μ g/L as 3mg/L, mix 1min, other step and parameter are identical with embodiment 1.
Embodiment 4, a kind of method of removing Tl and Sb Compound Heavy Metals in surface water is characterized in that the method carries out according to the following steps:
One, regulating water body pH is 6 to water body pH, and then the permanganate composite chemical mass concentration adds permanganate composite chemical to the thallium pollution concentration as 2mg/L in the water body of 0.19 μ g/L in the water body, mixes 1min;
Two, the antimony pollution concentration of Polyferric Sulfate mass concentration after as 40mg/L to step 1 adds Polyferric Sulfate in 14.3 μ g/L water bodys in the water body, then changes flocculation tank over to, after reaction 1min, changes settling tank over to, processes 1h;
Three, the water body after step 2 being regulated pH after sand filtration is filtered is 7, water outlet.
A kind of method that embodiment 5, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 4 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.19 μ g/L as 2.5mg/L, mix 1min, other step and parameter are identical with embodiment 4.
A kind of method that embodiment 6, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 4 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.19 μ g/L as 3mg/L, mix 1min, other step and parameter are identical with embodiment 4.
Embodiment 7, a kind of method of removing Tl and Sb Compound Heavy Metals in surface water is characterized in that the method carries out according to the following steps:
One, regulating water body pH is 6.04 to water body pH, and then the permanganate composite chemical mass concentration adds permanganate composite chemical to the thallium pollution concentration as 3mg/L in the water body of 0.3 μ g/L in the water body, mixes 1min;
Two, the antimony pollution concentration of Polyferric Sulfate mass concentration after as 40mg/L to step 1 adds Polyferric Sulfate in 18 μ g/L water bodys in the water body, then changes flocculation tank over to, after reaction 1min, changes settling tank over to, processes 1h;
Three, the water body after step 2 being regulated the pH value after sand filtration is filtered is 7 to water pH value, water outlet.
A kind of method that embodiment 8, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 7 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.3 μ g/L as 4mg/L, mix 1min, other step and parameter are identical with embodiment 7.
A kind of method that embodiment 9, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 7 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.3 μ g/L as 5mg/L, mix 1min, other step and parameter are identical with embodiment 7.
A kind of method that embodiment 10, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 7 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.3 μ g/L as 6mg/L, mix 1min, other step and parameter are identical with embodiment 7.
Embodiment 11, a kind of method of removing Tl and Sb Compound Heavy Metals in surface water is characterized in that the method carries out according to the following steps:
One, regulating water body pH is 6.04 to water body pH, and then the permanganate composite chemical mass concentration adds permanganate composite chemical to the thallium pollution concentration as 3mg/L in the water body of 0.3 μ g/L in the water body, mixes 1min;
Two, the antimony pollution concentration of Polyferric Sulfate mass concentration after as 50mg/L to step 1 adds Polyferric Sulfate in 18 μ g/L water bodys in the water body, then changes flocculation tank over to, after reaction 1min, changes settling tank over to, processes 1h;
Three, the water body after step 2 being regulated the pH value after sand filtration is filtered is 7 to water pH value, water outlet.
A kind of method that embodiment 12, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 11 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.3 μ g/L as 4mg/L, mix 1min, other step and parameter are identical with embodiment 11.
A kind of method that embodiment 13, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 11 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.3 μ g/L as 5mg/L, mix 1min, other step and parameter are identical with embodiment 11.
A kind of method that embodiment 14, the present embodiment removes Tl and Sb Compound Heavy Metals in surface water as different from Example 11 in the water body permanganate composite chemical mass concentration add permanganate composite chemical to the thallium pollution concentration in the water body of 0.3 μ g/L as 6mg/L, mix 1min, other step and parameter are identical with embodiment 11.
Test one, Tl and the test of Sb content detection in water are carried out in the water outlet of removing through embodiment 1～6 a kind of after in surface water, the method for Tl and Sb Compound Heavy Metals is processed:
According to GB5749-2006 Drinking Water health examination criteria, adopt " Drinking Water sanitary detecting method ", Tl and Sb content detection in water are carried out in the water outlet of removing through embodiment 1 a kind of after in surface water, the method for Tl and Sb Compound Heavy Metals is processed, obtain graphic representation as depicted in figs. 1 and 2, the graphic representation of Sb content detection in Fig. 1 water outlet wherein
The curve of Sb content detection in water outlet when being 30mg/L for the dosage of Polyferric Sulfate,
The curve of Sb content detection in water outlet when being 40mg/L for the dosage of Polyferric Sulfate; Fig. 2 is the graphic representation of Tl content detection in water outlet, wherein
The curve of Tl content detection in water outlet when being 30mg/L for the dosage of Polyferric Sulfate,
The curve of Tl content detection in water outlet when being 40mg/L for the dosage of Polyferric Sulfate.from figure 1 and Fig. 2 can find out, exceed standard at former water Tl and reach 2 times, Sb exceeds standard in the situation that reaches 3 times, the dosage of PPC is at 2mg/L～3mg/L, the dosage of PFS is when 30mg/L～40mg/L, water outlet Tl and Sb content detection all can be up to standard, and as can be seen from Figure 1 when the dosage of PFS during at 30mg/L, the clearance of Sb is up to 62%, the clearance of Tl is up to 95%, when the dosage of PFS during at 40mg/L, the clearance of Sb is up to 70%, the clearance of Tl is up to 95%, the content and the pH value that guarantee water outlet heavy metal Tl and Sb satisfy the drinking water sanitary standard requirement, and add the processing mode of chemical agent, save cost, easy to operate, needn't additionally increase the capital construction facility, can be used as traditional water factory for thallium and antimony combined pollution emergence treatment scheme.
Test two, Tl and the test of Sb content detection in water are carried out in the water outlet of removing through embodiment 7～12 a kind of after in surface water, the method for Tl and Sb Compound Heavy Metals is processed:
According to GB5749-2006 Drinking Water health examination criteria, adopt " Drinking Water sanitary detecting method ", Tl and Sb content detection in water are carried out in the water outlet of removing through embodiment 2 a kind of after in surface water, the method for Tl and Sb Compound Heavy Metals is processed, obtain graphic representation as shown in Figure 3 and Figure 4, the graphic representation of Sb content detection in Fig. 3 water outlet wherein
The curve of Sb content detection in water outlet when being 40mg/L for the dosage of Polyferric Sulfate,
The curve of Sb content detection in water outlet when being 50mg/L for the dosage of Polyferric Sulfate; Fig. 4 is the graphic representation of Tl content detection in water outlet, wherein
The curve of Tl content detection in water outlet when being 40mg/L for the dosage of Polyferric Sulfate,
The curve of Tl content detection in water outlet when being 50mg/L for the dosage of Polyferric Sulfate; From figure 3 and Fig. 4 can find out, the clearance that pH is set as 6.04, Tl is subjected to the impact of PPC dosage, when maximum material removal rate is 6mg/L at the PPC dosage, reaches 88%; PPC throwing amount during lower than 4mg/L water outlet Tl content not up to standard, clearance only has below 60%.The Sb clearance is subjected to the impact of PFS dosage relatively large, the PFS dosage can guarantee that more than 40mg/L water outlet Sb is up to standard, the maximum material removal rate of Sb reaches 90%, the content and the pH value that guarantee water outlet heavy metal Tl and Sb satisfy the drinking water sanitary standard requirement, and add the mode of chemical agent, save cost, easy to operate, needn't additionally increase the capital construction facility, can be used as traditional water factory for thallium and antimony combined pollution emergence treatment scheme.
Claims (10)
1. method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water is characterized in that the method carries out according to the following steps:
One, regulating former water pH value is 5.5～6.5, then adds permanganate composite chemical for being no more than 3mg/L or 3mg/L～6mg/L with permanganate composite chemical mass concentration in water body in water body, mixes 1min～2min; Wherein when thallium pollution concentration in water body when being no more than 0.2 μ g/L, the dosage of permanganate composite chemical is no more than 3mg/L, when thallium pollution concentration in water body was 0.2 μ g/L～0.3 μ g/L, the dosage of permanganate composite chemical was controlled to be 3mg/L～6mg/L;
Two, add Polyferric Sulfate in the water body of Polyferric Sulfate mass concentration after as 30mg/L～40mg/L or 40mg/L～60mg/L to step 1 in the water body, then flow into flocculation tank, after reaction 1min～2min, change settling tank over to, process 0.5h～2.5h; Wherein when antimony pollution concentration in water body when being no more than 15 μ g/L, the dosage of Polyferric Sulfate is 30mg/L～40mg/L, when antimony pollution concentration in water body was 15 μ g/L～20 μ g/L, the dosage of Polyferric Sulfate was 40mg/L～60mg/L;
Three, the water outlet after step 2 after filtering, is regulated in sand filtration pH value to 6.5～8.5, water outlet.
2. a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water according to claim 1, it is characterized in that adopting in step 1 nitric acid to regulate former water pH value is 5.5～6.5.
3. a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water according to claim 1 and 2, it is characterized in that regulating in step 1 pH value pH value to the water body is 5.7～6.1.
4. a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water according to claim 3, it is characterized in that in step 1 that when thallium pollution concentration in water body the dosage of permanganate composite chemical is 2mg/L～3mg/L when being no more than 0.2 μ g/L.
5. a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water according to claim 3, it is characterized in that in step 1 that the dosage of permanganate composite chemical is controlled to be 4mg/L～6mg/L when thallium pollution concentration in water body is 0.2 μ g/L～0.3 μ g/L.
6. a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water according to claim 3, is characterized in that in step 2, in water body, antimony pollution concentration is when being no more than 15 μ g/L, and the dosage of Polyferric Sulfate is 35mg/L～40mg/L.
7. a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water according to claim 3, when it is characterized in that in step 2 in water body that antimony pollution concentration is 15 μ g/L～20 μ g/L, the dosage of Polyferric Sulfate is 40mg/L～50mg/L.
8. a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water according to claim 3, is characterized in that changing in step 2 settling tank pond aftertreatment 1.5h.
9. a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water according to claim 3, pH value to 6.5～8.5 are regulated in the water outlet after it is characterized in that adopting caustic soda soln or soda-lime solution with step 2 in step 3 after sand filtration is filtered.
10. a kind of method of removing lower concentration Tl and Sb Compound Heavy Metals in surface water according to claim 3, it is characterized in that regulating in step 3 pH value pH value to the water body is 7.
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| CN2013100837558A CN103112973A (en) | 2013-03-15 | 2013-03-15 | Method for removing low-concentration T1 and Sb compound heavy metal pollution in surface water |
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| CN2013100837558A CN103112973A (en) | 2013-03-15 | 2013-03-15 | Method for removing low-concentration T1 and Sb compound heavy metal pollution in surface water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922514A (en) * | 2014-05-05 | 2014-07-16 | 哈尔滨工业大学 | Method for removing trace thallium contained in water |
| CN106186426A (en) * | 2016-08-16 | 2016-12-07 | 苏州思上环保科技有限公司 | A kind of micro heavy micro-catalysis oxidized waste water processes technique |
| CN114790019A (en) * | 2022-05-27 | 2022-07-26 | 中南大学 | Method for removing thallium through electro-adsorption of manganese dioxide electrode and deionization device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3839222A1 (en) * | 1988-11-19 | 1990-05-23 | Degussa | USE OF SUBSTITUTED THIOHARM SUBSTANCES FOR THE SEPARATION OF COMPLEX BONDED HEAVY METALLIONS |
| CN102145948A (en) * | 2011-02-24 | 2011-08-10 | 哈尔滨工业大学 | Water treatment method for adsorbing and removing Tl<+> and/or Cd2<+> by producing nanometer manganese dioxide in situ |
| JP4841738B2 (en) * | 2001-03-30 | 2011-12-21 | オルガノ株式会社 | Crystallization reactor filled with high specific gravity seed crystal and crystallization treatment method using the same |
-
2013
- 2013-03-15 CN CN2013100837558A patent/CN103112973A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3839222A1 (en) * | 1988-11-19 | 1990-05-23 | Degussa | USE OF SUBSTITUTED THIOHARM SUBSTANCES FOR THE SEPARATION OF COMPLEX BONDED HEAVY METALLIONS |
| JP4841738B2 (en) * | 2001-03-30 | 2011-12-21 | オルガノ株式会社 | Crystallization reactor filled with high specific gravity seed crystal and crystallization treatment method using the same |
| CN102145948A (en) * | 2011-02-24 | 2011-08-10 | 哈尔滨工业大学 | Water treatment method for adsorbing and removing Tl<+> and/or Cd2<+> by producing nanometer manganese dioxide in situ |
Non-Patent Citations (1)
| Title |
|---|
| 凌亮等: "饮用水水源突发性铊污染应急处理试验研究", 《安全与环境学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922514A (en) * | 2014-05-05 | 2014-07-16 | 哈尔滨工业大学 | Method for removing trace thallium contained in water |
| CN106186426A (en) * | 2016-08-16 | 2016-12-07 | 苏州思上环保科技有限公司 | A kind of micro heavy micro-catalysis oxidized waste water processes technique |
| CN114790019A (en) * | 2022-05-27 | 2022-07-26 | 中南大学 | Method for removing thallium through electro-adsorption of manganese dioxide electrode and deionization device |
| CN114790019B (en) * | 2022-05-27 | 2023-10-20 | 中南大学 | Method for removing thallium by utilizing manganese dioxide electrode in electric adsorption mode and deionization device |
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