CN102107969A - Method for emergently treating thallium-polluted raw water - Google Patents
Method for emergently treating thallium-polluted raw water Download PDFInfo
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- CN102107969A CN102107969A CN 201110024148 CN201110024148A CN102107969A CN 102107969 A CN102107969 A CN 102107969A CN 201110024148 CN201110024148 CN 201110024148 CN 201110024148 A CN201110024148 A CN 201110024148A CN 102107969 A CN102107969 A CN 102107969A
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- thallium
- potassium permanganate
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Abstract
The invention discloses a method for emergently treating thallium-polluted raw water. The method comprises the following steps of: adding potassium permanganate into the raw water, so that the potassium permanganate content of the raw water is 0.5 to 2.0 mg/L, or adding the potassium permanganate and sodium hypochlorite into the raw water, so that the potassium permanganate content of the raw water is 0.5 to 2.0 mg/L and the sodium hypochlorite content of the raw water is 3.0 to 5.0 mg/L; completely reacting for more than 4 hours; introducing the raw water after the complete reaction into an aeration tank; introducing ozone with the adding amount of 2 to 3 mg/L; reacting for 0.15 to 0.25 hour; adding polyaluminium chloride; coprecipitating thallium in the raw water; and filtering to obtain drinking water which accords with hygienic standard of drinking water. By the method for emergently treating the thallium-polluted raw water, the thallium can be removed from the raw water efficiently on the basis of basically not changing the original water purification process flow; serious consequences are avoided; and the method is simple and practicable and is convenient to control. Medicaments used in the method are readily available, so water treatment cost is not increased excessively.
Description
Technical field
The present invention relates to a kind of emergency processing method of former water, particularly a kind of emergency processing method of thallium polluted raw.
Background technology
The average content of thallium in the earth's crust is extremely low, but enrichment in polymetallic ore is hidden.The mine tailing that smelting wastewater and hole ore deposit waste water and mineralising district extensively exist is the main source of Tl in the surface water.Thallium is the intensive neurotoxic substance, and liver, kidney are had detrimental effect.Suction, the oral acute poisoning that causes; Can be through skin absorption.Oral appearance is felt sick, vomiting, abdominal colic, apocleisis etc., occurs multiple cranial nerve and peripheral lesion after 3～5 days, sensory disturbance and up property myoplegia occur.Toxic encephalopthy can take place in nervus centralis infringement severe patient.Alopecia is its specific manifestations.Fash appears in skin, refers to (toe) first adularescent band, and liver, renal impairment can be arranged.China's " drinking water sanitary standard " stipulates that (GB5749-2006) in the tap water, the content of Tl should be lower than 0.1 μ g/L.
When relevant industries burst accidents such as smeltings, very easily cause the thallium content overproof in the surface water such as river, serious threat is to the safety of drinking water source water quality.If this former water that polluted by thallium can not in time be handled in the waterworks, certainly will influence the ordinary production of water factory, even the life security that might jeopardize the user.But, the thallium removal method that is applicable to the former water treatment of tap water is not arranged now.
Summary of the invention
The object of the present invention is to provide a kind of emergency processing method that is subjected to the thallium polluted raw.
The technical solution used in the present invention is:
The emergency processing method of thallium polluted raw may further comprise the steps:
1) in former water, adds potassium permanganate, making the potassium permanganate content in the former water is 0.5～2.0mg/L, or in former water, add potassium permanganate and clorox, making the potassium permanganate content in the former water is 0.5～2.0mg/L, the content of clorox is 3.0～5.0mg/L, fully reaction is more than 4 hours, and wherein, the addition of clorox is in available chlorine;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and the addition of ozone is 2～3mg/L, reacts 0.15～0.25 hour;
3) add polymerize aluminum chloride,, filter, obtain meeting the tap water of drinking water sanitary standard thallium element co-precipitation in the former water.
The addition of polymerize aluminum chloride is 40～80mg/L.
The emergency processing method of thallium polluted raw of the present invention can be removed the thallium element in the former water efficiently not changing substantially on the basis of original water-purifying process flow process, avoids causing serious consequence, and method is simple, and control is convenient.
The medicament that the present invention uses is easy to get, and can too much not increase the processing cost of water.
Embodiment
Below in conjunction with embodiment, further specify the present invention.
In following examples, as be added with clorox, then the addition of clorox is in available chlorine.
Embodiment 1
1) add potassium permanganate in former water, making the potassium permanganate content in the former water is 1.0mg/L, fully reacts 6 hours;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and the addition of ozone is 3mg/L, reacts 0.2 hour;
3) polymerize aluminum chloride of interpolation 60mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
When the Tl content before handling in the former water was 0.303 μ g/L, after the precipitation process, the Tl content in the former water was reduced to 0.080 μ g/L, and after the filtration, Tl content is reduced to 0.039 μ g/L; When the Tl content before handling in the former water was 0.643 μ g/L, after the precipitation process, the Tl content in the former water was reduced to 0.104 μ g/L, and after the filtration, Tl content is reduced to 0.064 μ g/L.
Embodiment 2
1) add potassium permanganate and clorox in former water, making the potassium permanganate content in the former water is 1.0mg/L, and the content of clorox is 3.5mg/L, fully reacts 6 hours;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and the addition of ozone is 3mg/L, reacts 0.2 hour;
3) polymerize aluminum chloride of interpolation 60mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
When the Tl content before handling in the former water was 0.303 μ g/L, after the precipitation process, the Tl content in the former water was reduced to 0.093 μ g/L, and after the filtration, Tl content is reduced to 0.030 μ g/L.
Embodiment 3
1) add potassium permanganate in former water, making the potassium permanganate content in the former water is 1.0mg/L, fully reacts 4 hours;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and the addition of ozone is 3mg/L, reacts 0.2 hour;
3) polymerize aluminum chloride of interpolation 60mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
Tl content before handling in the former water is 0.210 μ g/L, and after the precipitation process, the Tl content in the former water is reduced to 0.116 μ g/L, and after the filtration, Tl content is reduced to 0.086 μ g/L.
Embodiment 4
1) add potassium permanganate in former water, making the potassium permanganate content in the former water is 2.0mg/L, fully reacts 4 hours;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and the addition of ozone is 3mg/L, reacts 0.2 hour;
3) polymerize aluminum chloride of interpolation 60mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
Tl content before handling in the former water is 0.280 μ g/L, and after the precipitation process, the Tl content in the former water is reduced to 0.122 μ g/L, and after the filtration, Tl content is reduced to 0.070 μ g/L.
Embodiment 5
1) add potassium permanganate in former water, making the potassium permanganate content in the former water is 0.5mg/L, fully reacts 8 hours;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and the addition of ozone is 3mg/L, reacts 0.15 hour;
3) polymerize aluminum chloride of interpolation 80mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
Embodiment 6
1) add potassium permanganate and clorox in former water, making the potassium permanganate content in the former water is 2.0mg/L, and the content of clorox is 3.0mg/L, fully reacts 7 hours;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and addition is 2mg/L, reacts 0.2 hour;
3) polymerize aluminum chloride of interpolation 40mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
Embodiment 7
1) add potassium permanganate and clorox in former water, making the potassium permanganate content in the former water is 0.5mg/L, and the content of clorox is 5.0mg/L, fully reacts 4 hours;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and the addition of ozone is 2mg/L, reacts 0.2 hour;
3) polymerize aluminum chloride of interpolation 80mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
Embodiment 8
1) add potassium permanganate and clorox in former water, making the potassium permanganate content in the former water is 1.0mg/L, and the content of clorox is 4.0mg/L, fully reacts 5 hours;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and addition is 2.5mg/L, reacts 0.15 hour;
3) polymerize aluminum chloride of interpolation 50mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
The contrast experiment 1
1) add potassium permanganate in former water, making the potassium permanganate content in the former water is 2.0mg/L, fully reacts 6 hours;
2) polymerize aluminum chloride of interpolation 60mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
Tl content before handling in the former water is 0.303 μ g/L, and after the precipitation process, the Tl content in the former water is reduced to 0.193 μ g/L, and after the filtration, Tl content is reduced to 0.130 μ g/L.
The contrast experiment 2
1) former water feeds in the contact reacts pond, feeds ozone, and the addition of ozone is 2.5mg/L, reacts 0.2 hour;
2) polymerize aluminum chloride of interpolation 60mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
Tl content before handling in the former water is 0.303 μ g/L, and after the precipitation process, the Tl content in the former water is reduced to 0.211 μ g/L, and after the filtration, Tl content is reduced to 0.180 μ g/L.
The contrast experiment 3
1) add clorox in former water, the content that makes the clorox in the former water is 5.0mg/L, fully reacts 6 hours;
2) polymerize aluminum chloride of interpolation 60mg/L with thallium element co-precipitation in the former water, filters, and obtains meeting the tap water of drinking water sanitary standard.
Tl content before handling in the former water is 0.303 μ g/L, and after the precipitation process, the Tl content in the former water is reduced to 0.274 μ g/L, and after the filtration, Tl content is reduced to 0.193 μ g/L.
As seen, adopt potassium permanganate, clorox and ozone that former water is handled separately, all be difficult to effectively remove the thallium in the former water.
Use potassium permanganate and/or clorox to handle more than 6 hours before the ozonize earlier, can remove the thallium in the former water better.
The inventive method can reduce the thallium element in the former water better, obtains meeting the tap water of drinking water sanitary standard.
Claims (3)
1. the emergency processing method of thallium polluted raw may further comprise the steps:
1) in former water, adds potassium permanganate, making the potassium permanganate content in the former water is 0.5～2.0mg/L, or in former water, add potassium permanganate and clorox, making the potassium permanganate content in the former water is 0.5～2.0mg/L, the content of clorox is 3.0～5.0mg/L, fully reaction is more than 4 hours, and wherein, the addition of clorox is in available chlorine;
The former water that 2) will fully react feeds in the contact reacts pond, feeds ozone, and the addition of ozone is 2～3mg/L, reacts 0.15～0.25 hour;
3) add polymerize aluminum chloride,, filter, obtain meeting the tap water of drinking water sanitary standard thallium element co-precipitation in the former water.
2. the emergency processing method of thallium polluted raw according to claim 1 is characterized in that: the addition of polymerize aluminum chloride is 40～80mg/L.
3. the emergency processing method of thallium polluted raw according to claim 1 is characterized in that: add potassium permanganate and/or clorox, fully react more than 6 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110024148 CN102107969A (en) | 2011-01-21 | 2011-01-21 | Method for emergently treating thallium-polluted raw water |
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| CN 201110024148 CN102107969A (en) | 2011-01-21 | 2011-01-21 | Method for emergently treating thallium-polluted raw water |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303932A (en) * | 2011-08-19 | 2012-01-04 | 深圳市水务(集团)有限公司 | Method for removing micro amount of thallium from drinking water by two-stage oxidization |
| CN102311190A (en) * | 2011-08-19 | 2012-01-11 | 深圳市水务(集团)有限公司 | Method for removing thallium from drinking water by enhanced conventional water treatment process |
| CN102320700A (en) * | 2011-08-12 | 2012-01-18 | 东莞市东江水务有限公司 | Method for removing thallium pollution in source water of drinking water |
| CN105540921A (en) * | 2015-12-22 | 2016-05-04 | 湖南森美思环保有限责任公司 | Method for removing thallium in wastewater |
| CN105692859A (en) * | 2016-01-22 | 2016-06-22 | 南通海陵环境检测有限公司 | Strong oxidant and application thereof |
Citations (4)
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| CN1067229A (en) * | 1992-07-15 | 1992-12-23 | 中国核工业总公司北京核仪器厂 | Treatment method of thallium-containing waste water |
| CN1090554A (en) * | 1993-02-04 | 1994-08-10 | 王抗曝 | Filtering method and apparatus |
| WO2001062360A2 (en) * | 2000-02-25 | 2001-08-30 | Watermark Technologies, Llc | Methods and apparatus for pressure stabilized removal of contaminants from solution |
| CN1557736A (en) * | 2004-01-14 | 2004-12-29 | 哈尔滨工业大学 | Oxidation coagulation aiding method using ozone and potassium permanganate |
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2011
- 2011-01-21 CN CN 201110024148 patent/CN102107969A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067229A (en) * | 1992-07-15 | 1992-12-23 | 中国核工业总公司北京核仪器厂 | Treatment method of thallium-containing waste water |
| CN1090554A (en) * | 1993-02-04 | 1994-08-10 | 王抗曝 | Filtering method and apparatus |
| WO2001062360A2 (en) * | 2000-02-25 | 2001-08-30 | Watermark Technologies, Llc | Methods and apparatus for pressure stabilized removal of contaminants from solution |
| CN1557736A (en) * | 2004-01-14 | 2004-12-29 | 哈尔滨工业大学 | Oxidation coagulation aiding method using ozone and potassium permanganate |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320700A (en) * | 2011-08-12 | 2012-01-18 | 东莞市东江水务有限公司 | Method for removing thallium pollution in source water of drinking water |
| CN102320700B (en) * | 2011-08-12 | 2013-09-11 | 东莞市东江水务有限公司 | Method for removing thallium pollution in source water of drinking water |
| CN102303932A (en) * | 2011-08-19 | 2012-01-04 | 深圳市水务(集团)有限公司 | Method for removing micro amount of thallium from drinking water by two-stage oxidization |
| CN102311190A (en) * | 2011-08-19 | 2012-01-11 | 深圳市水务(集团)有限公司 | Method for removing thallium from drinking water by enhanced conventional water treatment process |
| CN105540921A (en) * | 2015-12-22 | 2016-05-04 | 湖南森美思环保有限责任公司 | Method for removing thallium in wastewater |
| CN105540921B (en) * | 2015-12-22 | 2018-10-16 | 湖南森美思环保有限责任公司 | A kind of method of thallium in removal waste water |
| CN105692859A (en) * | 2016-01-22 | 2016-06-22 | 南通海陵环境检测有限公司 | Strong oxidant and application thereof |
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Application publication date: 20110629 |