CN1052295A - 水处理用碱式硫酸铁混凝剂 - Google Patents
水处理用碱式硫酸铁混凝剂 Download PDFInfo
- Publication number
- CN1052295A CN1052295A CN89109236A CN89109236A CN1052295A CN 1052295 A CN1052295 A CN 1052295A CN 89109236 A CN89109236 A CN 89109236A CN 89109236 A CN89109236 A CN 89109236A CN 1052295 A CN1052295 A CN 1052295A
- Authority
- CN
- China
- Prior art keywords
- water
- water treatment
- sulfate
- coagulating agent
- ferric sulfate
- Prior art date
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000000701 coagulant Substances 0.000 title abstract description 15
- GDPKWKCLDUOTMP-UHFFFAOYSA-B iron(3+);dihydroxide;pentasulfate Chemical compound [OH-].[OH-].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GDPKWKCLDUOTMP-UHFFFAOYSA-B 0.000 title abstract description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 5
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000001112 coagulating effect Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 239000003651 drinking water Substances 0.000 abstract description 2
- 235000020188 drinking water Nutrition 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract description 2
- 229940037003 alum Drugs 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000010842 industrial wastewater Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical group [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010795 gaseous waste Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 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
- 238000000034 method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XTHPWXDJESJLNJ-UHFFFAOYSA-N sulfurochloridic acid Chemical compound OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
一种用于水处理的三价铁混凝剂——碱式硫酸
铁，是一种特殊硫酸盐。本发明以硫酸亚铁为原料，
用空气中的氧气作氧化剂，经催化加工而成，成品是
固体。其具有三价铁混凝剂的各种优点：生成的矾花
重、沉淀快，受水温(特别是低温)影响小，适用的pH
值范围宽，且不潮解，所以运输、贮存、使用都很方
便。其可应用于生活饮用水等各种给水和各种工业
废水处理。
Description
一种用于给水、污水和工业废水澄清处理的三价铁混凝剂-碱式硫酸铁，是涉及一种特殊硫酸盐。
在给水、污水和工业废水的澄清处理中都要使用混凝剂。目前国内外采用的混凝剂主要有铝混凝剂和铁混凝剂两大类，其中使用最广泛的是硫酸铝。该混凝剂运输、贮存都很方便，但其存在生成的矾花比重小，沉淀速度较慢，受水温影响大，适用PH值范围窄等缺点，并且生产时需要大量硫酸。铁混凝剂虽能克服铝混凝剂在水处理工艺上的上述缺点，但是现有各种铁混凝剂如三氯化铁、硫酸铁和氯化硫酸亚铁在运输、贮存、使用上诸多不便，如需要罐装及密封等。
针对上述问题，本发明提供一种成本低廉、使用效果好、运输、存贮、使用方便的固体的三价铁混凝剂-碱式硫酸铁。
本发明的特点是以硫酸亚铁（绿矾）为原料，利用空气中的氧气作氧化剂，加热催化而形成的一种三价铁混凝剂。其具体生产过程：利用工业副产品硫酸亚铁结晶体（FeSO4·7H2O）为原料，可先将其加热或日晒去除部分结晶水（最好去除2～3个结晶水），使之疏松，然后可用磨机将其磨成粉状，以增大氧化反应的接触面积，使化学反应速度加快和完全。最后再与加热空气中的氧气直接接触反应，将二价铁氧化成三价铁。其化学反应式为：
热空气可采用工业废气和炉、窑烟气来间接加热得到。利用热空气氧化可采用各种不同的氧化设备如：转窑、立窑等。
在加热空气氧化时，加热温度不能超过250℃，以避免硫酸亚铁分解而失去SO3。
本发明利用空气中的氧气作氧化剂，工艺流程简单，生产成本低廉。其在水处理工艺上除了具有三价铁混凝剂的各种优点：生成的矾花重，沉淀快，不受水温影响（特别是低温），适用的PH值范围宽，此外这种三价铁混凝剂是固体，不潮解，因此贮存、运输、使用都很方便。其产品质量安全可靠，可在生活饮用水等各种给水、污水和工业废水澄清和去色处理中广泛应用。
Claims (1)
1、一种用于水处理的混凝剂-碱式硫酸铁。其特征在于，以硫酸亚铁结晶体为原料，用加热空气中的氧气在不超过250℃的温度下直接接触反应而成。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89109236A CN1046923C (zh) | 1989-12-08 | 1989-12-08 | 一种水处理用碱式硫酸铁混凝剂的生产方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89109236A CN1046923C (zh) | 1989-12-08 | 1989-12-08 | 一种水处理用碱式硫酸铁混凝剂的生产方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1052295A true CN1052295A (zh) | 1991-06-19 |
| CN1046923C CN1046923C (zh) | 1999-12-01 |
Family
ID=4857922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89109236A Expired - Lifetime CN1046923C (zh) | 1989-12-08 | 1989-12-08 | 一种水处理用碱式硫酸铁混凝剂的生产方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046923C (zh) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441272A (zh) * | 2013-08-22 | 2013-12-11 | 贵州师范大学 | 锂离子电池用碱式硫酸铁正极材料及电极的制备方法 |
| CN104761002A (zh) * | 2015-03-23 | 2015-07-08 | 江苏永葆环保科技股份有限公司 | 一种节能环保型改性聚合硫酸铁的制备工艺 |
| CN104803460A (zh) * | 2015-03-26 | 2015-07-29 | 徐颖惠 | 酸自耦平衡准干法制备聚合硫酸铝铁的方法 |
| CN105883993A (zh) * | 2014-10-14 | 2016-08-24 | 樊冠球 | 一种新型硫酸铁混凝剂的生产方法 |
| CN117542997A (zh) * | 2024-01-04 | 2024-02-09 | 河南师范大学 | 一种碳包覆碱式硫酸铁钾离子电池正极材料的制备方法 |
-
1989
- 1989-12-08 CN CN89109236A patent/CN1046923C/zh not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441272A (zh) * | 2013-08-22 | 2013-12-11 | 贵州师范大学 | 锂离子电池用碱式硫酸铁正极材料及电极的制备方法 |
| CN105883993A (zh) * | 2014-10-14 | 2016-08-24 | 樊冠球 | 一种新型硫酸铁混凝剂的生产方法 |
| CN104761002A (zh) * | 2015-03-23 | 2015-07-08 | 江苏永葆环保科技股份有限公司 | 一种节能环保型改性聚合硫酸铁的制备工艺 |
| CN104761002B (zh) * | 2015-03-23 | 2017-05-17 | 江苏永葆环保科技股份有限公司 | 一种节能环保型改性聚合硫酸铁的制备工艺 |
| CN104803460A (zh) * | 2015-03-26 | 2015-07-29 | 徐颖惠 | 酸自耦平衡准干法制备聚合硫酸铝铁的方法 |
| CN117542997A (zh) * | 2024-01-04 | 2024-02-09 | 河南师范大学 | 一种碳包覆碱式硫酸铁钾离子电池正极材料的制备方法 |
| CN117542997B (zh) * | 2024-01-04 | 2024-04-16 | 河南师范大学 | 一种碳包覆碱式硫酸铁钾离子电池正极材料的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1046923C (zh) | 1999-12-01 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C49 | Reinstatement of patent right or utility model | ||
| RR01 | Reinstatement of patent right |
Former decision: Termination of patent right |
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| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 19991201 |