CN101891289A - Effective method for removing lead in water from water source - Google Patents
Effective method for removing lead in water from water source Download PDFInfo
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- CN101891289A CN101891289A CN 201010227157 CN201010227157A CN101891289A CN 101891289 A CN101891289 A CN 101891289A CN 201010227157 CN201010227157 CN 201010227157 CN 201010227157 A CN201010227157 A CN 201010227157A CN 101891289 A CN101891289 A CN 101891289A
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- water
- lead
- potassium permanganate
- flocculation
- pond
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides an effective method for removing lead in water from a water source, which comprises the following steps of: adding potassium permanganate and manganese sulfate in a molar ratio of 1:1.0-1.80 into raw water with excessive lead in a flocculation pond; flocculating, and delivering to an inclined tube settling pond; and precipitating, and filtering the water in a filter pond. Through the method of the invention, the Pb<2+> concentration in effluent is far below a limit value of drinking water standard of 0.01 mg/L. In the method, the excessive lead in the raw water is removed by utilizing the coagulation property of hydrous manganese dioxide. The method has the advantages of simple processing, low cost, no secondary pollution and no change of a water treatment process.
Description
Technical field;
What the present invention relates to is a kind of water treatment method, specifically a kind of method of removing the land pollutant in anhydrating.
Background technology;
Plumbous toxicity is very big, can accumulate in human body, mainly is distributed in liver,kidney,spleen, courage, the brain, and is the highest with the concentration in liver, the kidney especially.But the activation of lead strongly inhibited ATP enzyme causes neural lead poisoning, but the thyroid function of lead poisoning coup injury humans and animals, and the secretion and the adrenocortical function of reduction pituitrin also can be damaged sexual cell and reduce sexual function.At present, China all suffers in various degree heavy metal contamination as the surface water of drinking water source such as river, lake and reservoir, and wherein Lead contamination is commonplace, therefore, eliminates plumbous extremely urgent to the pollution of source water.
The method of removing the heavy metal ion in anhydrating is a lot.Traditional method has: charcoal absorption, ion precipitation, ion exchange resin absorption etc.But above-mentioned processing method is used for waste water more.Not pointed for the characteristics that heavy metal content in the drinking water source is low.Pollute at the trace heavy metal in the drinking water source, still do not have sophisticated treatment technology at present, most water factories still adopt traditional coagulation, precipitation, filtration process, for the not assurance of removal of heavy metal contamination in the water.Have document to show: to the former water of high turbidity, the aluminum sulfate coagulant that adds 60～180mg/L reaches as high as 80% to the clearance of mercury.During dosing coagulant Tai-Ace S 150 40mg/L, be 60%, and increase Tai-Ace S 150 throwing amount and can not carry the plumbic clearance the clearance of lead.
Summary of the invention:
The hydrated manganese dioxide that the object of the present invention is to provide that a kind of treatment process is simple, cost is low, do not cause secondary pollution, does not change handling technology of water supply is removed the method for the metallic lead in the source water.
The object of the present invention is achieved like this: adding mol ratio in the former water that the lead in flocculation basin exceeds standard is 1: the potassium permanganate of 1.0-1.80 and manganous sulfate, enter tube settler after the flocculation, and heavy back water is through filter.
The present invention can also comprise some features like this:
1, the add-on of described potassium permanganate accounts for the 1000000/0.073-14.5/1000000ths of former water weight.
2, described hydrated manganese dioxide helps the effect of coagulating to former water.
The present invention is a water purification agent with potassium permanganate and manganous sulfate, potassium permanganate and manganous sulfate add the back and form hydrated manganese dioxide, this hydrated manganese dioxide can be brought into play surface complexation, flocculation co-precipitation, intensive electrostatic attraction effect simultaneously to the lead ion of lotus positive electricity, has showed the ability that superior coagulation is removed lead ion.Method of the present invention can make water outlet Pb
2+Concentration is far below drinking water standard limit value 0.01mg/L.The present invention utilizes the coagulation property of hydrated manganese dioxide, removes the lead that exceeds standard in the former water.Treatment process is simple, cost is low, do not cause secondary pollution, do not change handling technology of water supply.
Embodiment:
For a more detailed description to the present invention for example below:
Adding mol ratio in the former water that lead in flocculation basin exceeds standard is 1: the potassium permanganate of 1.0-1.80 and manganous sulfate, enter tube settler after the flocculation, and heavy back water is through filter.The add-on of potassium permanganate accounts for the 1000000/0.073-14.5/1000000ths of former water weight.
Add mol ratio in the former water that lead in flocculation basin exceeds standard and be 1: 1.5 potassium permanganate and manganous sulfate, enter tube settler after the flocculation, heavy back water is through filter.The add-on of potassium permanganate accounts for 1.0/1000000ths of former water weight.
Claims (2)
1. effective ways of removing the lead in the source water, it is characterized in that: adding mol ratio in the former water that the lead in flocculation basin exceeds standard is 1: the potassium permanganate of 1.0-1.80 and manganous sulfate, enter tube settler after the flocculation, heavy back water is through filter.
2. the effective ways of the lead in the described removal source water according to claim 1 is characterized in that: the add-on of potassium permanganate accounts for the 1000000/0.073-14.5/1000000ths of former water weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010227157 CN101891289A (en) | 2010-07-15 | 2010-07-15 | Effective method for removing lead in water from water source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010227157 CN101891289A (en) | 2010-07-15 | 2010-07-15 | Effective method for removing lead in water from water source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101891289A true CN101891289A (en) | 2010-11-24 |
Family
ID=43100668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010227157 Pending CN101891289A (en) | 2010-07-15 | 2010-07-15 | Effective method for removing lead in water from water source |
Country Status (1)
| Country | Link |
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| CN (1) | CN101891289A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108178369A (en) * | 2017-12-28 | 2018-06-19 | 深圳职业技术学院 | A kind of method for removing lead ion in water removal using single persulfate reinforcing manganese sand |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55115933A (en) * | 1979-02-28 | 1980-09-06 | Nippon Mining Co Ltd | Liquor purifying method in cadmium manufacturing process |
| CN1089919A (en) * | 1993-11-29 | 1994-07-27 | 山西大学 | The method of deironing in the Tai-Ace S 150 production process |
| CN101759263A (en) * | 2009-09-25 | 2010-06-30 | 北京工业大学 | Method for removing lead, copper and zinc pollution from water sources through coagulation |
-
2010
- 2010-07-15 CN CN 201010227157 patent/CN101891289A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55115933A (en) * | 1979-02-28 | 1980-09-06 | Nippon Mining Co Ltd | Liquor purifying method in cadmium manufacturing process |
| CN1089919A (en) * | 1993-11-29 | 1994-07-27 | 山西大学 | The method of deironing in the Tai-Ace S 150 production process |
| CN101759263A (en) * | 2009-09-25 | 2010-06-30 | 北京工业大学 | Method for removing lead, copper and zinc pollution from water sources through coagulation |
Non-Patent Citations (1)
| Title |
|---|
| 《工业用水与废水》 20100430 郭永福等 纳米MnO2的制备及其在废水处理中的应用 第11-14页 1-2 第41卷, 第2期 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108178369A (en) * | 2017-12-28 | 2018-06-19 | 深圳职业技术学院 | A kind of method for removing lead ion in water removal using single persulfate reinforcing manganese sand |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20101124 |