CN102627338A - Device for treating heavy metals in water and application of porous silicon to treatment of heavy metal pollution - Google Patents
Device for treating heavy metals in water and application of porous silicon to treatment of heavy metal pollution Download PDFInfo
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- CN102627338A CN102627338A CN2012101004265A CN201210100426A CN102627338A CN 102627338 A CN102627338 A CN 102627338A CN 2012101004265 A CN2012101004265 A CN 2012101004265A CN 201210100426 A CN201210100426 A CN 201210100426A CN 102627338 A CN102627338 A CN 102627338A
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Abstract
The invention provides a device for treating heavy metals in water and an application of porous silicon to treatment of heavy metal pollution, belonging to the technical field of sewage treatment. The device comprises a tank body and a porous silicon filter core embedded into the tank body, wherein the tank body is provided with a water inlet and a water outlet on both sides of the porous silicon filter core respectively. In the application of the porous silicon to treatment of heavy metal pollution, the porous silicon is taken as a filter core, so that sewage flows through the porous silicon filter core, and heavy metal components contained in water are adsorbed through the porous silicon filter core. According to a technology disclosed by the invention, additional components are not introduced in a sewage treatment process, so that the device has the characteristics of environmental friendliness; and moreover, the device has a delicate design, a simple structure, low cost and high operability, is easy for manufacturing, installing and maintaining, and is suitable for wide popularization.
Description
Technical field
The present invention relates to technical field of sewage, specifically, relate to the device of heavy metal in a kind of treating water.
Background technology
Fast development along with quickening of urbanization process and industrial or agricultural; All there is outstanding quality problem to some extent in the most cities of China; A large amount of undressed municipal wastess, contaminated soil, trade effluent, sewage and atmospheric fallout etc. constantly enter in the water, and the heavy metal content in water body suspended substance and the settling is sharply raise.The survey showed that to each big lake of China, and various in recent years heavy metal contaminations are in rising trend, begun to have influence on the quality of water body.Can find out from the finding of China's seven big water systems; Nineteen ninety-five the Changjiang river water system Cd (cadmium) pollutes and is only second to Hg (mercury), COD (COD; Chemical Oxygen Demand), BOD (biochemical oxygen demand, Biochemical Oxygen Demand) and volatile phenol; The Yellow River water system has 16.7% the total Cd content overproof of section; Master stream, Huaihe River total Cd content overproof rate is 16.7%; The total Cd content in the Luanhe River average exceeding standard rate in sea is 16.7%~83.9%; The Grand Liao River river pollution is lighter; In monitoring, found Cd pollution problem in various degree to 26 lakes being added up, reservoir; Pollution level is still polluted inferior to Hg.1991~nineteen ninety-five, relevant department was to finding in the monitoring of domestic city river, seven big water systems and lake and reservoir that Cr and Pb are commonplace heavy metal contaminants.Heavy metal in the water body through direct drinking-water, edible got into human body by approach such as the vegetables of sewage irrigation and grains, threatening that people's is healthy.
Heavy metal contamination is very harmful to the ecosystem:
1. to hydrobiological harm
Heavy metal is distributed in each component of aquatic ecosystem after getting into aquatic ecosystem, to each component of the ecosystem exert an influence (being ecologic effect).After biological heavy metal of body runs up to some amount, the symptom of being injured will appear, and physiology is obstructed, arrested development, even dead, and makes impaired, the collapse of whole aquatic ecosystem 26S Proteasome Structure and Function.
2. to the harm of waterplant
Algae is the primary producer of water body, in the food chain of aquatic ecosystem, plays crucial effect.People can utilize algae and hydrobiological susceptibility to monitor the heavy metal contamination of water body.After discovering that heavy metal gets into water body by all means; In case absorbed by algae, will cause that algal grown metabolism and physiological function are disorderly, suppress photosynthesis; Reduce cytopigment; Cause cell distortion, tissue necrosis, even algae is poisoned to death, the kind that changes algae in the natural surroundings is formed.
3. to the harm of HUMAN HEALTH
After heavy metal gets into human body, being difficult for draining, accumulating gradually, is many-sided, multi-level to the harm of HUMAN HEALTH, aspects such as its toxicological effect mainly shows influence the fetus normal development, cause dysgenesia, reduction human quality.After heavy metal (for example Pb, Se, Mn etc.) directly or indirectly gets into food chain through water body; Fe, vitamins C and other the essential nutritive substances seriously stored in the depleted body; Cause the decline of immunity system defence capability, intrauterine embryo growth is stagnated and some other deformity.In addition, heavy metal can also suppress the activity of anthropochemistry reaction enzymes, and tenuigenin is poisoned, thereby the injury nervous tissue also can cause directly tissue poisoning, tissues such as the critical organ liver of infringement human body function of detoxification, kidney.For example, heavy metal such as Hg, Pb, Cd and Se have been classified as violent in toxicity and have been carried out keypoint control.Present result of study shows, danger such as that heavy metal elements such as Cr, Co, Ni, Cd, Se all have is carcinogenic, teratogenesis, mutagenesis.
Summary of the invention
To the serious present situation of heavy metal contamination in the present water body, first purpose of the present invention is to provide the device of heavy metal in a kind of treating water, comes heavy metal contained in the planar water through adopting the porous silicon filter core, reaches the purpose of purifying water body.Second purpose of the present invention is to provide the purposes of porous silicon in handling heavy metal contamination.
First purpose of the present invention realizes through following technique means: the device of heavy metal in a kind of treating water comprises tank body and is embedded in a jar intravital porous silicon filter core; Said tank body is respectively equipped with water-in and water outlet in porous silicon filter core both sides; Sewage gets into tank body from water-in, the porous silicon filter core of flowing through, the heavy metal composition that contains in the porous silicon ability planar water; After heavy metal is disposed in filtration, flow out by water outlet again, accomplish treating processes.
The present invention also can do following improvement:
Also be provided with common filter core between said water-in and the porous silicon filter core, sewage is carried out primary filter, filter the residue that contains in the water.Said common filter core is made up of at least a in filter screen, filter cloth, the silica sand.
Also be respectively equipped with opening and door corresponding to common filter core and porous silicon filter core position on the said tank body, can clear up and load and unload common filter core and porous silicon filter core through this opening and door.
Said door is connected with tank body through hinge, and this door can open and close, and during its closure, Men Nengyu tank body, common filter core, the tight contact with water of porous silicon filter core can not oozed out from the slit.
Be equipped with groove on said common filter core and the porous silicon filter core, the inside protuberance of this groove and inner tank wall is complementary, thereby is fixed in tank interior to common filter core and porous silicon filter core.
Said opening is semicircle, said door be shaped as arc, its arc angle is 90 degree, two fan doors are combined into a semicircle, coincide with the opening of tank body.
The inside protuberance of said inner tank wall is semicircle.
Said water-in is positioned at the top of tank body, and said water outlet is positioned at the tail end of tank body.
Second purpose of the present invention provides the purposes that porous silicon is handled heavy metal contamination, its method be with porous silicon as filter core, make effluent stream through the porous silicon filter core, via the heavy metal composition that contains in the porous silicon filter core planar water.
The present invention also can do following improvement:
Effluent stream is tentatively filtered through common filter core, use the porous silicon filter element filtering again, can obtain better treatment effect.
Compared with prior art, the beneficial effect that has of the present invention is:
1) adopt technology of the present invention to carry out the sewage heavy metal and handle, come heavy metal contained in the planar water through the porous silicon filter core, effective.In general porous silicon can receive the influence of the following aspects factor to the adsorption of heavy metal: the similarity degree in particle radii and porous silicon aperture, and particle radii and aperture are approaching more, and adsorption is strong more; Competitive adsorption effect between the various heavy metal particles that contain in the sewage and temperature etc.Therefore, because environment is different, the difference of porous silica material there are differences the clearance of heavy metal composition contained in the sewage.Can draw from a large amount of experimental results, porous silicon can reach 60%-90% to removal rate of heavy metal.
2) technology of the present invention can not introduced extra component in water in the process of disposing of sewage, and has the characteristics of environmental protection, green.
3) device of heavy metal is provided with opening and the door that makes things convenient for working service in the treating water of the present invention, and the residue of staying on common filter core and the porous silicon filter core can be cleared up through the opening of tank body.Common filter core and porous silicon filter core itself also can be unloaded down from the opening part of tank body and clear up or change, and has flexibly, advantage easily.
4) the device deft design of heavy metal in the treating water of the present invention, simple in structure, manufacture, installation, maintenance are easy, and cost is low, and are workable, are applicable to extensively and promote.
Description of drawings
Fig. 1 is the device sectional view of heavy metal in the treating water of the present invention
Fig. 2 is the device perspective view of heavy metal in the treating water of the present invention;
Fig. 3 is the device front view of heavy metal in the treating water of the present invention;
Fig. 4 is the device stereographic map of heavy metal in the treating water of the present invention;
Fig. 5 is the device left view of heavy metal in the treating water of the present invention;
Fig. 6 is the device vertical view of heavy metal in the treating water of the present invention;
Fig. 7 is the front view of common filter core;
Fig. 8 is the stereographic map of common filter core;
Fig. 9 is the left view of common filter core;
Figure 10 is the vertical view of common filter core;
Figure 11 is the front view of porous silicon filter core;
Figure 12 is the stereographic map of porous silicon filter core;
Figure 13 is the left view of porous silicon filter core;
Figure 14 is the vertical view of porous silicon filter core;
Among the figure: 1. tank body, 101. water-ins, 102. water outlets, 2. common filter core, 3. hinge, 4., 5. porous silicon filter core.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified, but the present invention is not caused any restriction.
The device of heavy metal in a kind of treating water comprises tank body 1 and the porous silicon filter core 5 that is embedded in the tank body 1; Said tank body 1 is respectively equipped with water-in 101 and water outlet 102 in porous silicon filter core 5 both sides; Sewage gets into tank body 1 from water-in 101; The porous silicon filter core 5 of flowing through; The heavy metal composition that contains in the porous silicon ability planar water is flowed out by water outlet 102 after heavy metal is disposed in filtration again, accomplishes treating processes.
Also be provided with the common filter core 2 that constitutes by filter screen, filter cloth, silica sand between said water-in 101 and the porous silicon filter core 5, sewage is carried out primary filter, filter the residue that contains in the water.
Also be respectively equipped with opening and door 4 corresponding to common filter core 2 and porous silicon filter core 5 positions on the said tank body 1, can clear up and load and unload common filter core 2 and porous silicon filter core 5 through this opening and door 4.
Said door is connected with tank body 1 through hinge 3, and this door 4 can open and close, and during its closure, 4 can not ooze out from the slit with tank body 1, common filter core 2, porous silicon filter core 5 tight contact with water.
Be equipped with groove on said common filter core 2 and the porous silicon filter core 5, this groove and the inside protuberance of tank body 1 inwall are complementary, thereby are fixed in tank body 1 inside to common filter core 2 with porous silicon filter core 5.
Said opening is semicircle, said door 3 be shaped as arc, its arc angle is 90 degree, two fan doors are combined into a semicircle, coincide with the opening of tank body 1.
The inside protuberance of said tank body 1 inwall is semicircle.
Said water-in 101 is positioned at the top of tank body 1, and said water outlet 102 is positioned at the tail end of tank body 1.
Process when utilizing the apparatus processes heavy metal-containing polluted water of heavy metal in the treating water of the present invention is:
At first, sewage gets into from tank body 1 vertical water-in 101, and the common filter core 2 of flowing through earlier carries out primary filter to sewage, filters the residue that contains in the water; The heavy metal composition that the porous silicon filter core 5 of flowing through again afterwards, porous silicon contain in can planar water is flowed out the completion treating processes through filtering after disposing heavy metal again by the water outlet that is positioned at tank body 1 tail end 102.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. the device of heavy metal in the treating water is characterized in that: comprise tank body (1) and be embedded in the porous silicon filter core (5) in the tank body (1); Said tank body (1) is respectively equipped with water-in (101) and water outlet (102) in porous silicon filter core (5) both sides.
2. the device of heavy metal in the treating water according to claim 1 is characterized in that: also be provided with common filter core (2) between said water-in (101) and the porous silicon filter core (5).
3. the device of heavy metal in the treating water according to claim 2 is characterized in that: said tank body (1) is gone up corresponding to common filter core (2) and porous silicon filter core (5) position and also is respectively equipped with opening and door (4).
4. the device of heavy metal in the treating water according to claim 3 is characterized in that: said door is connected with tank body (1) through hinge (3).
5. the device of heavy metal in the treating water according to claim 4 is characterized in that: be equipped with groove on said common filter core (2) and the porous silicon filter core (5), the inside protuberance of this groove and tank body (1) inwall is complementary.
6. the device of heavy metal in the treating water according to claim 5 is characterized in that: said opening is for semicircle, said door (3) be shaped as arc, its arc angle is 90 degree, two fan doors are combined into a semicircle, coincide with the opening of tank body (1).
7. the device of heavy metal in the treating water according to claim 6 is characterized in that: the inside protuberance of said tank body (1) inwall is semicircle.
8. the device of heavy metal in the treating water according to claim 7 is characterized in that: said water-in (101) is positioned at the top of tank body (1), and said water outlet (102) is positioned at the tail end of tank body (1).
9. porous silicon is handled the purposes of heavy metal contamination, it is characterized in that: as filter core, make effluent stream through porous silicon filter core (5) porous silicon, via the heavy metal composition that contains in porous silicon filter core (5) planar water.
10. porous silicon according to claim 9 is handled the purposes of heavy metal contamination, it is characterized in that: effluent stream is tentatively filtered through common filter core (2), use porous silicon filter core (5) to filter again.
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CN201210100426.5A CN102627338B (en) | 2012-04-05 | 2012-04-05 | Device for treating heavy metals in water and application of porous silicon to treatment of heavy metal pollution |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108178329A (en) * | 2017-12-28 | 2018-06-19 | 连云港绿润环保科技有限公司 | A kind of chronic trickling formula sewage removes removing heavy metals method and its removal device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108178329A (en) * | 2017-12-28 | 2018-06-19 | 连云港绿润环保科技有限公司 | A kind of chronic trickling formula sewage removes removing heavy metals method and its removal device |
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