CN108046347A - A kind of heavy metals removal device - Google Patents
A kind of heavy metals removal device Download PDFInfo
- Publication number
- CN108046347A CN108046347A CN201711363126.5A CN201711363126A CN108046347A CN 108046347 A CN108046347 A CN 108046347A CN 201711363126 A CN201711363126 A CN 201711363126A CN 108046347 A CN108046347 A CN 108046347A
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- CN
- China
- Prior art keywords
- precipitating reagent
- reagent preparation
- heavy metal
- room
- filter chamber
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- 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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- 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)
- Processing Of Solid Wastes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The present invention provides a kind of heavy metals removal device, including：Heavy metal filter chamber and precipitating reagent preparation facilities, the heavy metal filter chamber are connected with the precipitating reagent preparation facilities.By the present invention in that the preparation by the use of cheap iron ion agent as precipitating reagent originates in material, save the cost of heavy metals removal, the precipitating reagent preparation facilities of precipitating reagent can be prepared automatically by being connected in removal device, realize the efficient removal of heavy metal and full-automatic removal.
Description
Technical field
The present invention relates to field of environment protection equipment, and in particular to a kind of heavy metals removal device.
Background technology
Heavy metal contaminants are primarily referred to as cadmium (Cd), chromium (Cr), lead (Pb) and mercury (Hg) etc..
Cadmium (Cd) is the glossiness metal of silvery white, is human body non-essential element.Metal cadmium toxicity is very low, only has micro- poison；
But its toxicity of compound is very big, and variety classes toxicity of compound differs.Cadmium sulfide, thiosulfonic acid cadmium category lower toxicity；Cadmium oxide, sulfuric acid
Cadmium, cadmium nitrate etc. belong to medium poison class.With city industrialization, the development of urbanization, substantial amounts of cadmium enters in water.Cadmium is heavy compared with other
Metal is easily absorbed by crops, vegetables, rice, as food chain enters in animal body, by drinking water and eating animal and plant
Food enters human body, mainly accumulates in liver and kidney.
Chromium (Cr) is a kind of metal with silvery white gloss, and nontoxic, chemical property is very stable, is deposited extensively in nature
A kind of element, be distributed mainly in rock, soil, big gas and water and organism.Pollution of chromium in environment mostlys come from chromium
The industries such as exploitation, smelting, the manufacture of chromic salts, plating, intermetallic composite coating, process hides, paint, pigment, printing and dyeing industry, photographic material
Chromium-containing waste gas, waste water and waste residue that waste water, fuel combustion are discharged etc..
The hexavalent chromic anhydride of common chromium compound, potassium bichromate, sodium dichromate, potassium chromate, sodium chromate etc.；The three of trivalent
Aoxidize two chromium (chrome green, Cr2O3)；The chromous oxide of divalent.Wherein, only trivalent chromium has biological meaning, such as food with Cr VI
Enough chromium cannot be provided, human body is present with chromium deficiency disease, influences carbohydrate and lipid metabolism.The toxicity of chromium and its existing valence state
Related, it has been generally acknowledged that the toxicity of Cr VI is 100 times higher than trivalent chromium, the Cr VI that several grams of zero point can be fatal, and Cr VI
Easily accumulated in vivo for absorption of human body.
Mercury (Hg), is commonly called as mercury, is a kind of very heavy, argenteous liquid transition metal, and is in uniquely liquid at normal temperatures
The metallic element of state.Mercury is a kind of toxic heavy metal element, may all contain mercury in each medium of environment, form mercury
Size selective sampling.In most areas, the background concentration of mercury does not form the harm to human body.The environmental pollution of mercury is mostly due to people
What the release of mercury generated developed and caused using mercury to class.The pollution sources of Mercury in Water Body are mainly instrucment and meter plant, salt electrolysis, your gold
Belong in the industrial wastewaters such as smelting, thermometer and military project.
Mercury and mercuric compounds belong to extremely toxic substance, can be accumulated in human body, and easily by skin and breathing and disappear
Change road to absorb.Central nervous tissue can be destroyed, counterpart, mucous membrane and tooth adversely affect.
The toxicity difference of various mercury compounds is very big, and element mercury, mercury are extremely toxic substances；Phenyl mercury in organic mercury decompose compared with
Soon, toxicity is little；Methyl mercury enters human body and is easier to be absorbed by, not degradable, and excretion is very slow, particularly easily accumulates in brain
Tired, toxicity is maximum.Human body mainly passes through alimentary canal to the absorption of mercury and mercuric compounds, the organic mercuration for generally having more than 95%
Object is closed easily by intestinal absorption；Inorganic mercury is relatively low in the absorption level of ionic and mercury metal, average out to 7%.Meanwhile into people
The inorganic mercury of body can also change into the organic mercury of toxicity bigger, generate the toxic action of bigger, can cause when serious in whole body
Poison.
Lead (Pb), silver gray heavy metal are dissolved in nitric acid, hot sulfuric acid, organic acid and lye.Insoluble in diluted acid and sulfuric acid.Tool
There are both sexes:The metal salt of plumbic acid can be formed, and the lead salt of acid can be formed.The pollution of lead is from mining, smelting in water body
The waste water of the departments such as refining, accumulator, rubber production, dyestuff, printing, ceramics, lead glass, scolding tin, cable and lead pipe discharge.
Lead be it is a kind of there is no any physiological function to human body, the heavy metal element with neurotoxicity instead.Lead is a kind of
Accumulation property poisonous substance, entering human body by food chain simultaneously can be in people's cylinder accumulation, if it exceeds certain standard will produce human body
Raw serious influence.The major toxicity effect of lead is to cause anemia, nervous function imbalance and injury of kidney.
In conclusion heavy metal harm to the human body is serious, therefore, it is necessary to set heavy metals removal device, a huge sum of money is realized
The efficient removal belonged to.
The content of the invention
In order to solve the above technical problem, the present invention provides a kind of heavy metals removal devices.
The present invention is realized with following technical solution：
A kind of heavy metals removal device, including：Heavy metal filter chamber and precipitating reagent preparation facilities, the heavy metal filtering
Room is connected with the precipitating reagent preparation facilities；
The precipitating reagent preparation facilities includes iron ion agent locker room and PH conditioning agents locker room, the iron ion agent
Locker room is connected by the first controlling valve with precipitating reagent preparation room, and the PH conditioning agents are prepared by the second controlling valve and precipitating reagent
Room connects, and PH sensor is provided in the precipitating reagent preparation room；First controlling valve, the second controlling valve and PH sensor are equal
It is communicated to connect with master controller, the master controller controls the first controlling valve to control according to the PH test results of PH sensor
Iron ion agent flows into the drop speed of precipitating reagent preparation room, and controls the second controlling valve so as to which PH conditioning agents be controlled to flow into precipitating reagent system
The drop speed of standby room；
Potentiometric sensor is additionally provided in the precipitating reagent preparation room, the potentiometric sensor communicates with the master controller
Connection is so that the master controller judges sinking in the precipitating reagent preparation room according to the measurement result of the potentiometric sensor
Whether shallow lake agent, which prepares, finishes；
More than one blender is additionally provided in the precipitating reagent preparation room, the blender is controlled by the master control
Device；
The precipitating reagent preparation room is connected with a centrifuge, and the precipitating reagent that the centrifuge is isolated enters precipitating reagent collection
Room, the precipitating reagent collecting chamber are connected with the heavy metal filter chamber；
More than one blender is provided in the heavy metal filter chamber, heavy metal filter chamber bottom is equipped with filtering
Layer, the filter layer are made of spunlace non-woven cloth, which includes thermoplasticity synthetic continuous fibre non-woven fabrics as intermediate
Layer.
Further, thermoplastic synthetic fiber's non-woven fabrics in the interlayer is 5~30 μm of fibre diameter, unit area weight
The spun-bonded non-woven fabrics of 20~160g/m2 are measured, and the layer of a surface side of the spun-bonded non-woven fabrics is by 2~15 μm of fibre diameter, unit
The staple fiber of 30~100g/m2 of area weight is formed, and the layer of another surface side is by 7~25 μm of fibre diameter, weight per unit area 50
The staple fiber of~200g/m2 is formed.
Further, blender quantity is 2-6 in the heavy metal filter chamber.
The beneficial effects of the invention are as follows：
The present invention provides a kind of heavy metals removal device, including：Heavy metal filter chamber and precipitating reagent preparation facilities, institute
Heavy metal filter chamber is stated to connect with the precipitating reagent preparation facilities.By the present invention in that by the use of cheap iron ion agent as precipitation
The preparation of agent originates in material, saves the cost of heavy metals removal, and precipitating reagent can be prepared automatically by being connected in removal device
Precipitating reagent preparation facilities, realize the efficient removal of heavy metal and full-automatic removal.
Description of the drawings
Fig. 1 is a kind of heavy metals removal schematic device that invention provides；
Fig. 2 is the precipitating reagent preparation facilities schematic diagram that invention provides.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
It is described in detail on step ground.
A kind of heavy metals removal device, as shown in Figs. 1-2, including：Heavy metal filter chamber 10 and precipitating reagent preparation facilities
20, the heavy metal filter chamber 10 is connected with the precipitating reagent preparation facilities 20；
The precipitating reagent preparation facilities 20 includes iron ion agent locker room 201 and PH conditioning agents locker room 202, the iron
Ion reagent locker room 201 is connected by the first controlling valve with precipitating reagent preparation room 203, and the PH conditioning agents 202 pass through second
Controlling valve is connected with precipitating reagent preparation room 203, and PH sensor is provided in the precipitating reagent preparation room 203；First regulation and control
Valve, the second controlling valve and PH sensor are communicated to connect with master controller 204, and the master controller 204 is according to PH sensor
PH test results control the first controlling valve so as to which iron ion agent be controlled to flow into the drop speed of precipitating reagent preparation room 203, and control the
Two controlling valves are fast so as to control the drop that PH conditioning agents flow into precipitating reagent preparation room 203；
Potentiometric sensor, the potentiometric sensor and the master controller are additionally provided in the precipitating reagent preparation room 203
204 communication connections are so that the master controller 204 judges the precipitating reagent system according to the measurement result of the potentiometric sensor
Whether the precipitating reagent in standby room 203, which prepares, finishes；
More than one blender is additionally provided in the precipitating reagent preparation room 203, the blender is controlled by the master control
Device 204 processed；
The precipitating reagent preparation room 203 is connected with a centrifuge 205, and the precipitating reagent that the centrifuge 205 is isolated enters
Precipitating reagent collecting chamber 206, the precipitating reagent collecting chamber 206 are connected with the heavy metal filter chamber 10；
More than one blender is provided in the heavy metal filter chamber 10,10 bottom of heavy metal filter chamber is equipped with
Filter layer 101, the filter layer 101 are made of spunlace non-woven cloth, which includes thermoplasticity synthetic continuous fibre nonwoven
Cloth is as interlayer.
In specifically precipitating reagent preparation process, iron ion agent can be added to the water system for Fe2+ aqueous solutions by divalent iron salt
, the concentration of divalent iron salt is insoluble in water for the upper limit with the divalent iron salt added in, i.e., the aqueous solution of Fe2+ is saturated solution.PH
Conditioning agent is alkaline matter, and PH conditioning agents can be with the one or more in NaOH, KOH, Ca (OH) 2.PH conditioning agents addition with
PH value is controlled in precipitating reagent preparation room 203.When pH value is 10.0~13.0 in precipitating reagent preparation room 203, stop adding PH
Conditioning agent.
In whipping process, the hydroxide ion of Fe2+ and PH conditioning agents react to form hydroxide precipitating reagent preparation room 203
Ferrous iron, ferrous hydroxide are easy to aoxidize, and Fe3+ is formed with oxygen catalytic oxidation in air in whipping process.Trivalent need not be added in
Molysite has saved cost.In the conversion process, the first oxidation-reduction potential continuously decreases, and potentiometric sensor in real time will oxidation
Reduction potential is transmitted to master controller 204.When it is reduced to -500~-700mv, Fe3+ and Fe2+ reaches in the precipitating reagent of preparation
To suitable ratio, precipitating reagent has stronger removal ability to heavy metal.
Further, thermoplastic synthetic fiber's non-woven fabrics in the interlayer is 5~30 μm of fibre diameter, unit area weight
The spun-bonded non-woven fabrics of 20~160g/m2 are measured, and the layer of a surface side of the spun-bonded non-woven fabrics is by 2~15 μm of fibre diameter, unit
The staple fiber of 30~100g/m2 of area weight is formed, and the layer of another surface side is by 7~25 μm of fibre diameter, weight per unit area 50
The staple fiber of~200g/m2 is formed.
Further, blender quantity is 2-6 in the heavy metal filter chamber.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of heavy metals removal device, which is characterized in that including：Heavy metal filter chamber and precipitating reagent preparation facilities, it is described
Heavy metal filter chamber is connected with the precipitating reagent preparation facilities；
The precipitating reagent preparation facilities includes iron ion agent locker room and PH conditioning agents locker room, the iron ion agent storage
Room is connected by the first controlling valve with precipitating reagent preparation room, and the PH conditioning agents are connected by the second controlling valve and precipitating reagent preparation room
It is logical, it is provided with PH sensor in the precipitating reagent preparation room；First controlling valve, the second controlling valve and PH sensor with always
Controller communicate to connect, the master controller according to the PH test results of PH sensor control the first controlling valve so as to control iron from
Sub- reagent flows into the drop speed of precipitating reagent preparation room, and controls the second controlling valve so as to which PH conditioning agents be controlled to flow into precipitating reagent preparation room
Drop speed；
Potentiometric sensor is additionally provided in the precipitating reagent preparation room, the potentiometric sensor is communicated to connect with the master controller
So that the master controller judges the precipitating reagent in the precipitating reagent preparation room according to the measurement result of the potentiometric sensor
Whether prepare and finish；
More than one blender is additionally provided in the precipitating reagent preparation room, the blender is controlled by the master controller；
The precipitating reagent preparation room is connected with a centrifuge, and the precipitating reagent that the centrifuge is isolated enters precipitating reagent collecting chamber,
The precipitating reagent collecting chamber is connected with the heavy metal filter chamber；
More than one blender is provided in the heavy metal filter chamber, heavy metal filter chamber bottom is equipped with filter layer,
The filter layer is made of spunlace non-woven cloth, which includes thermoplasticity synthetic continuous fibre non-woven fabrics as interlayer.
2. a kind of heavy metals removal device according to claim 1, it is characterised in that：
Thermoplastic synthetic fiber's non-woven fabrics in the interlayer is 5~30 μm of fibre diameter, 20~160g/m2 of weight per unit area
Spun-bonded non-woven fabrics, and the layer of a surface side of the spun-bonded non-woven fabrics by 2~15 μm of fibre diameter, weight per unit area 30~
The staple fiber of 100g/m2 is formed, the layer of another surface side by 7~25 μm of fibre diameter, 50~200g/m2 of weight per unit area it is short
Fiber is formed.
3. a kind of heavy metals removal device according to claim 1, it is characterised in that：
Blender quantity is 2-6 in the heavy metal filter chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711363126.5A CN108046347A (en) | 2017-12-14 | 2017-12-14 | A kind of heavy metals removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711363126.5A CN108046347A (en) | 2017-12-14 | 2017-12-14 | A kind of heavy metals removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108046347A true CN108046347A (en) | 2018-05-18 |
Family
ID=62133495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711363126.5A Pending CN108046347A (en) | 2017-12-14 | 2017-12-14 | A kind of heavy metals removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108046347A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103781529A (en) * | 2011-09-09 | 2014-05-07 | 旭化成纤维株式会社 | Filter material |
| CN105236543A (en) * | 2015-11-26 | 2016-01-13 | 湖南康盟环保科技有限公司 | Heavy metal precipitant, preparation method thereof and heavy metal wastewater treatment method |
-
2017
- 2017-12-14 CN CN201711363126.5A patent/CN108046347A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103781529A (en) * | 2011-09-09 | 2014-05-07 | 旭化成纤维株式会社 | Filter material |
| CN105236543A (en) * | 2015-11-26 | 2016-01-13 | 湖南康盟环保科技有限公司 | Heavy metal precipitant, preparation method thereof and heavy metal wastewater treatment method |
Non-Patent Citations (3)
| Title |
|---|
| 中国轻工总会: "《轻工业技术装备手册》", 31 August 1997, 北京：机械工业出版社 * |
| 许辉等: "《分析化学实验》", 31 August 2017, 中国农业大学出版社 * |
| 黄亚东等: "《发酵调味品生产技术》", 30 June 2014, 中国轻工业出版社 * |
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Application publication date: 20180518 |
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