CN101318726A - Iron-carbon filling material - Google Patents
Iron-carbon filling material Download PDFInfo
- Publication number
- CN101318726A CN101318726A CNA2008101244775A CN200810124477A CN101318726A CN 101318726 A CN101318726 A CN 101318726A CN A2008101244775 A CNA2008101244775 A CN A2008101244775A CN 200810124477 A CN200810124477 A CN 200810124477A CN 101318726 A CN101318726 A CN 101318726A
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- iron
- filler
- waste water
- carbon
- filling material
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Abstract
The invention discloses a micro-electrolytic iron-carbon filler, in particular a waste water treatment filler used in industries such as printing and dyeing, pharmacy, heavy metal and petrochemical industry. The filler adopts the following technical proposal that the compositions in percentage by weight of the iron-carbon filler are: 2.0 to 10.0 percent of carbon, 0.8 to 5.0 percent of silicon and 85.0 to 95.0 percent of iron, wherein the carbon is distributed in iron in an elemental graphitizing free state. The filler can be used in the direct treatment of alkaline waste water, neutral waste water and acidic waste water without adding acid to be adjusted to acidity and adopting mixed fillers such as active carbon and coke; meanwhile, the filler is not easy to harden in water and has higher removing efficiency for COD and chrominance; moreover, the filler can increase the biodegradability of waste water and provides a basis for subsequent biochemical treatment.
Description
Technical field:
The present invention relates to a kind of little electrolytic iron carbon filling material, especially be applied to print and dye, the wastewater treatment filler of industry such as pharmacy, heavy metal, petrochemical complex.
Background technology:
Micro-electrolysis method is to utilize Principles of Metal Erosion, forms the good process that galvanic cell is handled waste water, claims internal electrolysis, iron dust filtration method etc. again.Because applied widely, advantages such as treatment effect good, long service life, with low cost and convenient operating maintenance that this method has.Micro-electrolysis method successfully is applied to the processing of waste water such as dyestuff, printing and dyeing, heavy metal, agricultural chemicals, pharmacy, oil content at present.Existing little electrolytic processing apparatus exposes some problems in operational process, fixedly the little electrolytic processing apparatus of filler is after the operation of for some time, and filler easily lumps, and phenomenons such as channel occur, reduces treatment effect greatly.The patent No. is the micro-electrolysis device that discloses several different structures in 002252471,00243627,200410098587 the patent document, but power consumption is bigger, and filler runs off easily.The iron-carbon filling material that is used for micro-electrolysis device at present is mainly waste iron filing, gac, coke etc. and mixes, because micro-electrolysis stuffing shape, size, the surface properties of compositions such as waste iron filing, gac, coke have nothing in common with each other, easily produce disadvantages such as caking, obstruction, short circuit during actual the use; Owing to need to mix or the layering filling, after iron consumes, load after it need being come out clearly when adding once more on the other hand, workload is bigger, and this mixed fillers is applicable to that mainly under the acidic conditions, the consumption of iron is big again.
Summary of the invention
At the problems referred to above, the present invention proposes a kind of little electrolytic iron carbon filling material, need not to regulate the pH value of waste water to acid, under neutrality or alkaline condition, can produce good micro-electrolysis reaction equally, the iron consumption is little, and need not layering interpolation carbonaceous material, prevented from caking.
Technical scheme is: a kind of iron-carbon filling material comprises following component by weight percentage: charcoal is that 2.0-10.0%, silicon are that 0.8-5.0%, iron are 85.0-95.0%.
Described charcoal is that simple substance greying free state form is distributed in the irony.
Beneficial effect: iron-carbon filling material of the present invention can directly be handled alkalescence, middle wastewater, need not to add acid and is adjusted to acidity, can be directly used in wastewater treatment, need not to use mixed fillers such as gac, coke again, is difficult for hardening in water.As hardening with placing air to get rusty after the water-wet for a long time, but only need place water after several hours, will eliminate and harden, automatically loose, this filler can be degraded to the labile material of small molecules with the macromole hardly degraded organic substance matter in the waste water, COD and colourity there are higher removal efficient, and can improve the biodegradability of waste water, for follow-up biochemical treatment provides the basis.
Embodiment
Iron-carbon filling material component that proposes below in conjunction with embodiment explanation the present invention and the processing that is used for difficult trade effluent.
Embodiment 1:
Composition: charcoal is 2.0%; Silicon is 0.8%; Iron is 95.0%, and charcoal is that greying free state form is uniformly distributed in the iron.Filler is shaped as wood shavings shape, carbon granule is spherical in the filler, micropore gathers on the surface, inside is distributed with the pore hole, highly be the iron-carbon filling material of said components of packing in 1.25 meters micro-electrolysis devices of making a body by the PVC material, certain is contained benzene series thing class organic waste water introduce micro-electrolysis device, waste water quality: COD
Cr=1000～1500mg/L, PH=6～7, BOD/COD＜0.2, electrochemical reaction takes place by this filler in waste water, and with physics such as deoxidization, degradation and coagulation, chemical phenomenon.Through micro-electrolysis reaction after 2 hours, by the water outlet COD behind the coagulating sedimentation
Cr＜500mg/L, BOD/COD
Cr=0.50, organic matter degradation is obvious, and has improved the biodegradability of this waste water, and successive reaction is after 10 days, and iron-carbon filling material does not have the phenomenon of hardening.
Embodiment 2:
Composition: charcoal is 5.0%; Silicon is 4.0%; Iron is 90.0%, and charcoal is that greying free state form is uniformly distributed in the iron.Filler is shaped as wood shavings shape, and carbon granules is spherical in the filler, adopts the device treatment of dyeing and printing among the embodiment 1, waste water is introduced micro-electrolysis device, waste water quality: COD
CrBe 1200mg/L, PH=12.4, colourity is 640 times (extension rates), electrochemical reaction takes place by the iron-carbon filling material of said components in waste water, and with physics such as deoxidization, degradation and coagulation, chemical phenomenon.After little electrolytic waste water treatment equipment, coagulation-settlement process are handled, COD
CrBe 780mg/L, colourity＜40 times, COD
CrClearance reach 35%, the clearance of colourity＞95%.After the successive reaction 10 days, iron-carbon filling material does not have the phenomenon of hardening.
Embodiment 3:
Composition: charcoal is 10.0%; Silicon is 5.0%; Iron is 85.0%, and charcoal is that greying free state form is uniformly distributed in the iron.Filler is shaped as wood shavings shape, and carbon granules is spherical in the filler, adopts the device treatment of dyeing and printing among the embodiment 1, waste water is introduced micro-electrolysis device, waste water quality: COD
CrBe 1200mg/L, PH=8, colourity is 640 times (extension rates), electrochemical reaction takes place by the iron-carbon filling material of said components in waste water, and with physics such as deoxidization, degradation and coagulation, chemical phenomenon.After little electrolytic waste water treatment equipment, coagulation-settlement process are handled, COD
CrBe 700mg/L, colourity＜40 times, COD
CrClearance reach 40%, the clearance of colourity＞95%.After the successive reaction 10 days, iron-carbon filling material does not have the phenomenon of hardening.
Claims (2)
1, a kind of iron-carbon filling material is characterized in that, comprises following component by weight percentage: charcoal is that 2.0-10.0%, silicon are that 0.8-5.0%, iron are 85.0-95.0%.
2, iron-carbon filling material according to claim 1 is characterized in that: described charcoal is that simple substance greying free state form is distributed in the irony.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101244775A CN101318726A (en) | 2008-07-08 | 2008-07-08 | Iron-carbon filling material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101244775A CN101318726A (en) | 2008-07-08 | 2008-07-08 | Iron-carbon filling material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101318726A true CN101318726A (en) | 2008-12-10 |
Family
ID=40179037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101244775A Pending CN101318726A (en) | 2008-07-08 | 2008-07-08 | Iron-carbon filling material |
Country Status (1)
| Country | Link |
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| CN (1) | CN101318726A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040263A (en) * | 2010-11-17 | 2011-05-04 | 北京航空航天大学 | Method for modifying micro-electrolytic fillers |
| CN101723488B (en) * | 2009-12-21 | 2013-01-16 | 昆明理工大学 | Novel water-treatment medicament based on internal electrolysis principle and preparation method thereof |
| CN103274503A (en) * | 2013-04-25 | 2013-09-04 | 河北钢铁股份有限公司 | Iron-carbon micro-electrolysis filler and preparation method thereof |
| CN103288184A (en) * | 2013-05-20 | 2013-09-11 | 江苏通瑞环保科技发展有限公司 | Method for copper-containing wastewater treatment based on iron-carbon micro-electrolysis technology |
-
2008
- 2008-07-08 CN CNA2008101244775A patent/CN101318726A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101723488B (en) * | 2009-12-21 | 2013-01-16 | 昆明理工大学 | Novel water-treatment medicament based on internal electrolysis principle and preparation method thereof |
| CN102040263A (en) * | 2010-11-17 | 2011-05-04 | 北京航空航天大学 | Method for modifying micro-electrolytic fillers |
| CN103274503A (en) * | 2013-04-25 | 2013-09-04 | 河北钢铁股份有限公司 | Iron-carbon micro-electrolysis filler and preparation method thereof |
| CN103288184A (en) * | 2013-05-20 | 2013-09-11 | 江苏通瑞环保科技发展有限公司 | Method for copper-containing wastewater treatment based on iron-carbon micro-electrolysis technology |
| CN103288184B (en) * | 2013-05-20 | 2014-10-22 | 江苏通瑞环保科技发展有限公司 | Method for copper-containing wastewater treatment based on iron-carbon micro-electrolysis technology |
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Open date: 20081210 |