CN101456612A - Clean production novel process for preparing environment pollution treatment material by fly ash - Google Patents
Clean production novel process for preparing environment pollution treatment material by fly ash Download PDFInfo
- Publication number
- CN101456612A CN101456612A CNA2008101504274A CN200810150427A CN101456612A CN 101456612 A CN101456612 A CN 101456612A CN A2008101504274 A CNA2008101504274 A CN A2008101504274A CN 200810150427 A CN200810150427 A CN 200810150427A CN 101456612 A CN101456612 A CN 101456612A
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- China
- Prior art keywords
- fly ash
- preparation
- coagulating agent
- fly
- ash
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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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- 239000010881 fly ash Substances 0.000 title claims abstract description 44
- 239000000463 material Substances 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 238000002360 preparation method Methods 0.000 claims abstract description 24
- 239000000701 coagulant Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 239000002594 sorbent Substances 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 6
- 238000010306 acid treatment Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 239000002585 base Substances 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- -1 poly aluminium iron silicate compound Chemical class 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 abstract description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract description 7
- 239000010457 zeolite Substances 0.000 abstract description 7
- 239000003463 adsorbent Substances 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000002910 solid waste Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000004480 active ingredient Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004065 wastewater treatment Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 159000000013 aluminium salts Chemical class 0.000 description 2
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical class [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013066 combination product Substances 0.000 description 1
- 229940127555 combination product Drugs 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to the field of environment engineering and relates to solid waste recycling, sewage treatment and so on. The invention discloses a clean production process for preparing environmental pollution curbing materials with fly ash. According to the composition and properties of the fly ash, the process uses a waste liquid produced during the preparation of a zeolite adsorbent from the fly ash as the raw material for the preparation of a polysilicate composite coagulating agent from the fly ash and uses waste slag produced during the preparation of a polysilicate composite coagulating agent from the fly ash as the raw material for the preparation of a zeolite adsorbent from he fly ash, thereby effectively using the active ingredients of the fly ash and reducing environmental pollution and resource waste in the preparation process.
Description
Technical field
The invention belongs to field of environment engineering, relate to processing and recycling, wastewater treatment and the material preparation etc. of solid waste.
Background technology
Flyash is the solid waste that coal-fired thermal power factory discharges, and its main component is SiO
2, Al
2O
3, CaO, Fe
2O
3Deng, also contain a spot of other materials simultaneously.In recent years, the utilization of flyash aspect environment protection caused expert and scholar's attention, and its main direction is for being development of raw materials Cheap highly effective sorbent material with flyash and utilizing fly-ash Preparation use in waste water treatment polysilicate new composite coagulant.
Is the new way that Ash Utilization utilizes with flyash for the feedstock production zeolite adsorbents.Main ingredient in the flyash is SiO
2And Al
2O
3, be the desirable feedstock of synthetic zeolite.With flyash is the raw material synthetic zeolite, has changed the crystalline structure of flyash, can significantly improve the absorption and the ion-exchange performance of flyash.Fly-ash Preparation zeolite adsorption agent method commonly used has hydrothermal synthesis method etc. in the document at present.Usually carry out under the effect of alkali and heating condition, alkali commonly used is NaOH, KOH and Na
2CO
3Deng, wherein best with the effect of NaOH.Can produce a certain amount of alkaline waste liquor with alkali reaction in the fly-ash Preparation zeolite adsorbents process, wherein contain many useful elements such as Si, Al, be the efficient polysilicate coagulant desirable feedstock of preparation.But these waste liquids are directly discarded usually, fail to be utilized effectively, and this not only can cause serious environmental to pollute, and also can cause the waste of resource, increases the sorbent material cost.
Coagulation Method is a most important method in the wastewater treatment, is to use one of the most general key link in the waste water treatment process, and it affects operation condition, effluent characteristics and the running cost of follow-up flow process to a great extent.Coagulating agent commonly used comprises polymerize aluminum chloride, poly-ferric chloride, polyaluminium sulfate, PAFS, aluminium iron polychloride, polyacrylamide etc.Polysilicate is a class novel inorganic high-molecular coagulant adopting, be the poly-silicic acid that on the basis of poly-silicic acid and coagulating agent such as aluminium salt, molysite, grows up and the combination product of metal-salt, it has charge neutrality effect and adsorption bridging effect simultaneously, coagulation effect good and be easy to the preparation, low price.With flyash is the novel use in waste water treatment coagulating agent of feedstock production polysilicate, can make full use of compositions such as Si, Al in the flyash and Fe, is another important channel of flyash high added value recycling.Its preparation process generally includes acidleach processing and alkaline purification, extracts active principle Si, Al and Fe in the flyash, and waste residue is discarded usually, the waste resource, also causes environmental pollution.
Summary of the invention
The present invention combines the method for fly-ash Preparation sorbent material and coagulating agent; the waste residue that produces in the fly-ash Preparation coagulating agent process is used as the raw material of preparation sorbent material; and the waste liquid that produces in the fly-ash Preparation sorbent material process is used as the raw material for preparing coagulating agent; form a kind of novel process of cleaner production; promptly economize on resources and the energy, protect environment again.Flyash is at acid treatment (HCl, H
2SO
4Deng) in the process, the Fe in the flyash
2O
3, FeO and part A l
2O
3By the acid dissolving, reaction is carried out solid-liquid separation after finishing, and the soluble ferric iron salt of generation and aluminium salt are transferred in the filtrate with solution, and residue is as raw material and alkaline solution (NaOH, KOH, the NaCO of preparation sorbent material
3Deng) react the SiO in the residue
2And Al
2O
3With the reaction of alkaline solution such as NaOH, generate silicate and aluminate etc. and enter in the solution.After the solid-liquid separation, filtrate is mixed with the filtrate that acid treatment is produced, regulate the pH value, polyreaction generates the poly aluminium iron silicate coagulating agent.And the residue of alkaline purification is drying to obtain fly ash absorbent again through drying, being washed to neutrality.
Description of drawings
Accompanying drawing is the new cleanproduction process block diagram of preparing environment pollution treatment material by fly ash.
Embodiment
The invention will be further described by the following examples.
Embodiment:
Adding concentration in the ball milling superfined flyash of 20g is that 1M, volume ratio are HCl and the H of 1:1
2SO
4Mixing acid and a certain amount of NaCl (solubility promoter) and a small amount of ferric sulfate, at 80 ℃ of stirred in water bath reaction 2h, filter, collect filter residue and filtrate.With above-mentioned acid treatment filter residue, add the NaOH solution of 80mL, 4.5M, in 80 ℃ of water-baths, react 4h, filter, separate, collect filter residue and filtrate.
Acid treatment gained filtrate and alkaline purification gained filtrate are mixed, regulate pH, reactive polymeric 3h with NaOH or HCl solution, promptly obtain the fly ash base coagulating agent, this coagulating agent is the poly aluminium iron silicate coagulating agent.Handling turbidity with this coagulating agent is the seal paper money waste water of 170.8NTU, and its turbidity removal rate can reach 92.63%.
The filter residue of alkaline purification gained is dried, is washed to neutrality, and drying obtains the fly ash base sorbent material again.This fly ash base sorbent material is methylene blue solution and the Cr of 100mg/L to concentration
6+Solution, adsorptive capacity are respectively 5.56mg/g and 1.98mg/g.
Claims (3)
1. the new cleanproduction process of a preparing environment pollution treatment material by fly ash.Comprise with the fly-ash Preparation sorbent material with the fly-ash Preparation coagulating agent.It is characterized in that preparing the waste residue that acid treatment produces in the coagulating agent process and be used as the raw material for preparing sorbent material, and the waste liquid that alkaline purification produced in the preparation sorbent material process is as the raw material of preparation coagulating agent.
2. the new cleanproduction process of preparing environment pollution treatment material by fly ash according to claim 1 is characterized in that: the preparation alkali that fly ash absorbent adopted is NaOH, KOH, Na
2CO
3Deng, the sorbent material of fly-ash Preparation is the fly ash absorbent through alkaline purification rear section zeolitization.
3. the new cleanproduction process of preparing environment pollution treatment material by fly ash according to claim 1 is characterized in that: the acid that preparation fly ash base coagulating agent is adopted is HCl, H
2SO
4Deng and mixing acid, prepared coagulating agent is the poly aluminium iron silicate compound coagulant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101504274A CN101456612A (en) | 2008-07-23 | 2008-07-23 | Clean production novel process for preparing environment pollution treatment material by fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101504274A CN101456612A (en) | 2008-07-23 | 2008-07-23 | Clean production novel process for preparing environment pollution treatment material by fly ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101456612A true CN101456612A (en) | 2009-06-17 |
Family
ID=40767779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101504274A Pending CN101456612A (en) | 2008-07-23 | 2008-07-23 | Clean production novel process for preparing environment pollution treatment material by fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101456612A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671623A (en) * | 2012-05-23 | 2012-09-19 | 上海交通大学 | Preparation method of fly ash based zeolite / alumina composite adsorbing material |
| CN106241846A (en) * | 2016-08-29 | 2016-12-21 | 太仓市新星轻工助剂厂 | A kind of method of making aluminium polychloride |
| CN106315603A (en) * | 2016-08-04 | 2017-01-11 | 广东紫方环保技术有限公司 | Preparation method of polymeric aluminum ferric silicate |
| CN108706708A (en) * | 2018-06-15 | 2018-10-26 | 广州安达净水材料有限公司 | A kind of polysilics acid metal salt coagulant and its mushy stage preparation method |
| CN108862503A (en) * | 2018-06-15 | 2018-11-23 | 广州安达净水材料有限公司 | A kind of pickling formula mushy stage polysilics acid metal salt coagulant and preparation method thereof |
| CN109569545A (en) * | 2018-11-19 | 2019-04-05 | 山西大学 | A kind of coal ash for manufacturing for aluminium silicon porous material method |
| CN110980900A (en) * | 2019-12-12 | 2020-04-10 | 安徽工业大学 | Modified powder zeolite-loaded Fe3O4Coupling compound coagulant aid, preparation method and application |
| CN115350694A (en) * | 2022-06-08 | 2022-11-18 | 上海大学 | Method for preparing molded acid gas adsorbent by using iron-containing waste residues and molded acid gas adsorbent prepared by using method |
-
2008
- 2008-07-23 CN CNA2008101504274A patent/CN101456612A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671623A (en) * | 2012-05-23 | 2012-09-19 | 上海交通大学 | Preparation method of fly ash based zeolite / alumina composite adsorbing material |
| CN106315603A (en) * | 2016-08-04 | 2017-01-11 | 广东紫方环保技术有限公司 | Preparation method of polymeric aluminum ferric silicate |
| CN106241846A (en) * | 2016-08-29 | 2016-12-21 | 太仓市新星轻工助剂厂 | A kind of method of making aluminium polychloride |
| CN108706708A (en) * | 2018-06-15 | 2018-10-26 | 广州安达净水材料有限公司 | A kind of polysilics acid metal salt coagulant and its mushy stage preparation method |
| CN108862503A (en) * | 2018-06-15 | 2018-11-23 | 广州安达净水材料有限公司 | A kind of pickling formula mushy stage polysilics acid metal salt coagulant and preparation method thereof |
| CN109569545A (en) * | 2018-11-19 | 2019-04-05 | 山西大学 | A kind of coal ash for manufacturing for aluminium silicon porous material method |
| CN110980900A (en) * | 2019-12-12 | 2020-04-10 | 安徽工业大学 | Modified powder zeolite-loaded Fe3O4Coupling compound coagulant aid, preparation method and application |
| CN115350694A (en) * | 2022-06-08 | 2022-11-18 | 上海大学 | Method for preparing molded acid gas adsorbent by using iron-containing waste residues and molded acid gas adsorbent prepared by using method |
| CN115350694B (en) * | 2022-06-08 | 2024-03-19 | 上海大学 | Method for preparing formed acid gas adsorbent by utilizing iron-containing waste residues and formed acid gas adsorbent prepared by method |
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Legal Events
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|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Zhuannian Document name: Notification to Make Rectification |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: XI AN TECHNOLOGY UNIVERSITY Free format text: FORMER OWNER: LIU ZHUANNIAN Effective date: 20090619 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20090619 Address after: No. 58, middle section, Yanta Road, Shaanxi, Xi'an Applicant after: Xi'an University of Science and Technology Address before: School of Geology and environment, Xi'an University of Science And Technology, 58 middle section of Yanta Road, Xi'an, Shaanxi Applicant before: Liu Zhuannian |
|
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090617 |