CN104310668A - Method for repairing heavy metal lead in underground water - Google Patents
Method for repairing heavy metal lead in underground water Download PDFInfo
- Publication number
- CN104310668A CN104310668A CN201410529860.4A CN201410529860A CN104310668A CN 104310668 A CN104310668 A CN 104310668A CN 201410529860 A CN201410529860 A CN 201410529860A CN 104310668 A CN104310668 A CN 104310668A
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- China
- Prior art keywords
- underground water
- heavy metal
- lead
- water
- metal lead
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a method for repairing heavy metal lead in underground water, belonging to the field of sewage treatment. The method comprises the steps of inletting underground water into a settling zone (2) from a water inlet (1), adding hydroxide (10), reacting lead with hydroxide so as to produce white precipitate, and dissolving the generated precipitate; introducing into an electrolysis zone (3) from a water channel I(8), wherein the electrolysis zone (3) has a rotary iron disk (6); and carrying out redox reaction on the lead ion in the waste water with iron, then introducing the waste water containing lead into an adsorption zone (4) through a water channel II (9), wherein the adsorption zone (4) has a modified rectorite, which can eliminate lead in the waste water finally due to adsorption. The concentration range of the original waste water is 55.54-57.13mg/L, the concentration rage of the underground water with lead treated by the device is 0.0052-0.0076mg/L, and the elimination rate reaches over 99%. Experiments prove that the device can well eliminate the lead in the underground water, thereby achieving the purpose of purifying the underground water.
Description
Technical field
The present invention relates to a kind of method of repairing heavy metal lead in underground water, belong to sewage treatment area.
Background technology
Underground water is the important component part of nature water cycle, with mankind's activity and survive closely bound up.Along with expanding economy, the toxic metal ions contained in the waste water of industrial discharge gets more and more, and environmental pollution is also more and more serious.Trade effluent is the main contributor causing environmental pollution, wherein is more difficult to administer with the pollution of heavy metal ion.And lead is as a heavy metal species, it is occurring in nature distribution the most a kind of element, lead is used in modern industry in a large number, and lead is a kind of serious pollutent simultaneously, it runs up to and a certain amount ofly will produce serious harm to aqueous bio in water body, and produces high risks by food chain to HUMAN HEALTH.
Under normal circumstances to the heavy metal water bodys such as lead reparation have Physical, chemical method and microorganism treatment.For the membrane separation process in Physical, film is expensive, and vulnerable to pollution; Although utilizing microorganism to reach must effect, be only in the experimental study stage.Therefore this several method existing, all can not well process for the lead in underground water.
Summary of the invention
The present invention is directed to that traditional restorative procedure cycle is long, the slow and remediation efficiency of taking effect is low etc., and problem provides that a kind of repairing efficiency is short, instant effect and the method for heavy metal lead in the high reparation underground water of repair rate.
In order to reach above-mentioned purpose, the technical scheme of employing is as follows:
(1) by exploring the geology of the underground water near certain chemical plant, Polluted area is determined;
(2) again by Ground water Quality Survey, heavy metal lead point source in Groundwater is determined;
(3) contrast heavy metal lead point-source distribution figure in Groundwater, find heavily contaminated region, and beat a bite well in the heavily contaminated region of underground water, well depth is gone directly heavily contaminated underground water source contact surface;
(4) lay same a bite well in light source of pollution region, well depth is gone directly light zone of pollution underground water source contact surface;
(5) from the well of heavily contaminated region, extract underground water out in the heavy metal lead prosthetic device of ground with water pump, after prosthetic device process, directly pass in light zone of pollution well, meanwhile, pour into the river after purification, until light zone of pollution well is filled.
Described heavy metal lead prosthetic device is divided into 3rd district, and a district is settling region (2), 2nd district are electrolysis zone (3), 3rd district are adsorption zone (4).
A described settling region, district (2) adds oxyhydroxide (10) wherein, and plumbous and oxyhydroxide reaction can form complex compound, and the throw out of generation is dissolved.
There is a rotation iron pan (6) in 2nd described district in electrolysis zone (3), being converted to chemical energy by electric energy is that ate electrode in electrolyzer produces redox reaction, namely the lead ion in waste water and iron carry out redox reaction, and result produces novel substance.
3rd described district are adsorption zone (4), and place several pieces of property of modified rectorites (7) in adsorption zone (4), property of modified rectorite can adsorb the lead in lead waste water substantially.
Principle of work of the present invention: underground water is passed into settling region, and oxyhydroxide is added in settling region, plumbous and oxyhydroxide reaction can form white precipitate, and the throw out of generation is dissolved; Then lead waste water enters electrolysis zone, places one and rotate iron pan in electrolysis zone, and being converted to chemical energy by electric energy is that ate electrode in electrolyzer produces redox reaction, and the lead ion namely in waste water and iron carry out redox reaction, result generation novel substance; Then the lead waste water after electrolysis enters into adsorption zone, several pieces of property of modified rectorites in adsorption zone, and property of modified rectorite can adsorb the lead in lead waste water substantially, finally makes purification of waste water.After prosthetic device process, directly pass in light Polluted area well, meanwhile, pour into the river after purification, until light Polluted area well is filled.
Application method of the present invention is:
(1) by exploring the geology of the underground water near certain chemical plant, Polluted area is determined;
(2) again by Ground water Quality Survey, heavy metal lead point source in Groundwater is determined;
(3) contrast heavy metal lead point-source distribution figure in Groundwater, find heavily contaminated region, and beat a bite well in the heavily contaminated region of underground water, well depth is gone directly heavily contaminated underground water source contact surface;
(4) lay same a bite well in light source of pollution region, well depth is gone directly light zone of pollution underground water source contact surface;
(5) from the well of heavily contaminated region, underground water is extracted out in the heavy metal lead prosthetic device of ground with water pump, its device treating processes is: the underground water extracted out from the well of heavily contaminated region with water pump is passed into settling region (2) by water inlet (1), oxyhydroxide (10) is added in settling region (2), plumbous and oxyhydroxide reaction can form complex compound, and the throw out of generation is dissolved; Then lead waste water was passed through aquaporin I (8) and was entered electrolysis zone (3), a rotation iron pan (6) is had in electrolysis zone (3), being converted to chemical energy by electric energy is that ate electrode in electrolyzer produces redox reaction, namely the lead ion in waste water and iron carry out redox reaction, and result produces novel substance; Then the lead waste water after electrolysis was passed through aquaporin II (9) and was entered into adsorption zone (4), several pieces of property of modified rectorites (7) are placed in adsorption zone (4), property of modified rectorite can adsorb the lead in lead waste water substantially, finally makes purification of waste water.River after purification is circulated in the well of light Polluted area, until fill.
The significant advantage that the present invention has is:
(1) this device adopts electrolytic process, and the cycle is short, less energy consumption, and process cost is low.
(2) this device utilizes property of modified rectorite to adsorb, aboundresources, and method of modifying is simple, avoids secondary pollution.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: (1) water inlet (2) settling region (3) electrolysis zone (4) adsorption zone (5) water outlet (6) rotation iron pan (7) property of modified rectorite (8) is crossed aquaporin I (9) and crossed aquaporin II (10) oxyhydroxide
Specific embodiments
Repair a method for heavy metal lead in underground water, method is:
(1) by exploring the geology of the underground water near certain chemical plant, Polluted area is determined;
(2) again by Ground water Quality Survey, heavy metal lead point source in Groundwater is determined;
(3) contrast heavy metal lead point-source distribution figure in Groundwater, find heavily contaminated region, and beat a bite well in the heavily contaminated region of underground water, well depth is gone directly heavily contaminated underground water source contact surface;
(4) lay same a bite well in light source of pollution region, well depth is gone directly light zone of pollution underground water source contact surface;
(5) from the well of heavily contaminated region, extract underground water out in the heavy metal lead prosthetic device of ground with water pump, after prosthetic device process, directly pass in light zone of pollution well, meanwhile, pour into the river after purification, until light zone of pollution well is filled.
Described heavy metal lead prosthetic device is divided into 3rd district, and a district is settling region (2), 2nd district are electrolysis zone (3), 3rd district are adsorption zone (4).
A described settling region, district (2) adds oxyhydroxide (10) wherein, and plumbous and oxyhydroxide reaction can form complex compound, and the throw out of generation is dissolved;
There is a rotation iron pan (6) in 2nd described district in electrolysis zone (3), being converted to chemical energy by electric energy is that ate electrode in electrolyzer produces redox reaction, namely the lead ion in waste water and iron carry out redox reaction, and result produces novel substance;
3rd described district are adsorption zone (4), and place several pieces of property of modified rectorites (7) in adsorption zone (4), property of modified rectorite can adsorb the lead in lead waste water substantially.
Example 1
By exploring the geology of the underground water near certain chemical plant, determine Polluted area; Again by Ground water Quality Survey, determine heavy metal lead point source in Groundwater; Heavy metal lead point-source distribution figure in contrast Groundwater, finds heavily contaminated region, and beats a bite well in the heavily contaminated region of underground water, and well depth is gone directly heavily contaminated underground water source contact surface; 55.45mg/L by the concentration that water pump extracts underground water out plumbous after testing from the well of heavily contaminated region, then be placed into by the water of releasing in the heavy metal lead prosthetic device of ground, after prosthetic device process, then to survey its concentration be 0.0052mg/L, clearance is 99.99%, meets discharging standards.
Example 2
By exploring the geology of the underground water near certain chemical plant, determine Polluted area; Again by Ground water Quality Survey, determine heavy metal lead point source in Groundwater; Heavy metal lead point-source distribution figure in contrast Groundwater, finds heavily contaminated region, and beats a bite well in the heavily contaminated region of underground water, and well depth is gone directly heavily contaminated underground water source contact surface; 56.27mg/L by the concentration that water pump extracts underground water out plumbous after testing from the well of heavily contaminated region, then be placed into by the water of releasing in the heavy metal lead prosthetic device of ground, after prosthetic device process, then to survey its concentration be 0.0063mg/L, clearance is 99.99%, meets discharging standards.
Example 3
By exploring the geology of the underground water near certain chemical plant, determine Polluted area; Again by Ground water Quality Survey, determine heavy metal lead point source in Groundwater; Heavy metal lead point-source distribution figure in contrast Groundwater, finds heavily contaminated region, and beats a bite well in the heavily contaminated region of underground water, and well depth is gone directly heavily contaminated underground water source contact surface; 57.13mg/L by the concentration that water pump extracts underground water out plumbous after testing from the well of heavily contaminated region, then be placed into by the water of releasing in the heavy metal lead prosthetic device of ground, after prosthetic device process, then to survey its concentration be 0.0076mg/L, clearance is 99.99%, meets discharging standards.
Claims (5)
1. repair a method for heavy metal lead in underground water, it is characterized in that:
(1) by exploring the geology of the underground water near certain chemical plant, Polluted area is determined;
(2) again by Ground water Quality Survey, heavy metal lead point source in Groundwater is determined;
(3) contrast heavy metal lead point-source distribution figure in Groundwater, find heavily contaminated region, and beat a bite well in the heavily contaminated region of underground water, well depth is gone directly heavily contaminated underground water source contact surface;
(4) lay same a bite well in light source of pollution region, well depth is gone directly light zone of pollution underground water source contact surface;
(5) from the well of heavily contaminated region, extract underground water out in the heavy metal lead prosthetic device of ground with water pump, after prosthetic device process, directly pass in light zone of pollution well, meanwhile, pour into the river after purification, until light zone of pollution well is filled.
2. a kind of method of repairing heavy metal lead in underground water according to claim 1, it is characterized in that: described heavy metal lead prosthetic device is divided into 3rd district, a district is settling region (2), 2nd district are electrolysis zone (3), 3rd district are adsorption zone (4).
3. a kind of method of repairing heavy metal lead in underground water according to claim 1, it is characterized in that: a described settling region, district (2) adds oxyhydroxide (10) wherein, lead ion and oxyhydroxide reaction can generate white precipitate, and the throw out of generation is dissolved.
4. a kind of method of repairing heavy metal lead in underground water according to claim 1, it is characterized in that: there is a rotation iron pan (6) in 2nd described district in electrolysis zone (3), being converted to chemical energy by electric energy is that ate electrode in electrolyzer produces redox reaction, and the lead ion namely in waste water and iron carry out redox reaction.
5. a kind of method of repairing heavy metal lead in underground water according to claim 1, is characterized in that: 3rd described district are adsorption zone (4), places property of modified rectorite, the lead in the adsorbable water of rectorite leng in adsorption zone (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529860.4A CN104310668B (en) | 2014-10-09 | 2014-10-09 | A kind of method of repairing heavy metal lead in underground water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529860.4A CN104310668B (en) | 2014-10-09 | 2014-10-09 | A kind of method of repairing heavy metal lead in underground water |
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| CN104310668A true CN104310668A (en) | 2015-01-28 |
| CN104310668B CN104310668B (en) | 2016-05-11 |
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| CN201410529860.4A Active CN104310668B (en) | 2014-10-09 | 2014-10-09 | A kind of method of repairing heavy metal lead in underground water |
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Cited By (3)
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| CN105152457A (en) * | 2015-07-18 | 2015-12-16 | 常州大学 | Method for remedying hardness of groundwater |
| CN106277108A (en) * | 2016-09-19 | 2017-01-04 | 中国环境科学研究院 | A kind of multistage standard device in situ repairing heavy metal pollution in subsoil water |
| CN117259418A (en) * | 2023-03-10 | 2023-12-22 | 中国地质科学院岩溶地质研究所 | Natural enhanced leaching system and method for simulating and repairing karst lead-zinc mining area soil arsenic and cadmium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117259418A (en) * | 2023-03-10 | 2023-12-22 | 中国地质科学院岩溶地质研究所 | Natural enhanced leaching system and method for simulating and repairing karst lead-zinc mining area soil arsenic and cadmium |
| CN117259418B (en) * | 2023-03-10 | 2024-02-20 | 中国地质科学院岩溶地质研究所 | Natural enhanced leaching system and method for simulating and repairing karst lead-zinc mining area soil arsenic and cadmium |
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| CN104310668B (en) | 2016-05-11 |
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Effective date of registration: 20201124 Address after: Room 116-119, science and technology building, University Science Park, No.1, Dongfa Road, Dongxiao Town, Xinluo District, Longyan City, Fujian Province Patentee after: Fujian Longjun Environmental Protection Equipment Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |
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