CN112570432B - Dechlorination method for coal-fired power plant desulfurization wastewater drying ash - Google Patents
Dechlorination method for coal-fired power plant desulfurization wastewater drying ash Download PDFInfo
- Publication number
- CN112570432B CN112570432B CN202011275799.7A CN202011275799A CN112570432B CN 112570432 B CN112570432 B CN 112570432B CN 202011275799 A CN202011275799 A CN 202011275799A CN 112570432 B CN112570432 B CN 112570432B
- Authority
- CN
- China
- Prior art keywords
- ash
- acid
- crucible
- coal
- washing
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000006298 dechlorination reaction Methods 0.000 title claims abstract description 29
- 238000001035 drying Methods 0.000 title claims abstract description 26
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 23
- 230000023556 desulfurization Effects 0.000 title claims abstract description 23
- 239000002351 wastewater Substances 0.000 title claims abstract description 21
- 238000005406 washing Methods 0.000 claims abstract description 58
- 239000002253 acid Substances 0.000 claims abstract description 55
- 238000000967 suction filtration Methods 0.000 claims abstract description 30
- 230000010355 oscillation Effects 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000005303 weighing Methods 0.000 claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims abstract description 3
- 238000007873 sieving Methods 0.000 claims abstract description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 31
- 239000008367 deionised water Substances 0.000 claims description 17
- 229910021641 deionized water Inorganic materials 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 15
- 239000011259 mixed solution Substances 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 11
- 230000000382 dechlorinating effect Effects 0.000 claims description 11
- 238000003760 magnetic stirring Methods 0.000 claims description 8
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 239000002893 slag Substances 0.000 abstract description 22
- 238000004140 cleaning Methods 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 abstract description 11
- 238000001354 calcination Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005554 pickling Methods 0.000 abstract description 2
- 238000002604 ultrasonography Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 55
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 19
- 239000000460 chlorine Substances 0.000 description 19
- 229910052801 chlorine Inorganic materials 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 15
- 239000010881 fly ash Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000009210 therapy by ultrasound Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910001504 inorganic chloride Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- -1 water washing Chemical compound 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Sample (I) | Chlorine removal Rate (%) |
Example 1 | 98.1 |
Example 2 | 95.4 |
Example 3 | 96.7 |
Comparative example 1 | 71.4 |
Comparative example 2 | 86.1 |
Comparative example 3 | 89.5 |
Comparative example 4 | 92.3 |
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011275799.7A CN112570432B (en) | 2020-11-16 | 2020-11-16 | Dechlorination method for coal-fired power plant desulfurization wastewater drying ash |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011275799.7A CN112570432B (en) | 2020-11-16 | 2020-11-16 | Dechlorination method for coal-fired power plant desulfurization wastewater drying ash |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112570432A CN112570432A (en) | 2021-03-30 |
CN112570432B true CN112570432B (en) | 2021-08-17 |
Family
ID=75122617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011275799.7A Active CN112570432B (en) | 2020-11-16 | 2020-11-16 | Dechlorination method for coal-fired power plant desulfurization wastewater drying ash |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112570432B (en) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10132233A (en) * | 1996-10-30 | 1998-05-22 | Takuma Co Ltd | Apparatus and method for burning to dispose waste |
JP2000285756A (en) * | 1999-03-30 | 2000-10-13 | Densen Sogo Gijutsu Center | Dechlorination method of coating waste of vinyl chloride coated wire |
JP2005058974A (en) * | 2003-08-20 | 2005-03-10 | National Institute Of Advanced Industrial & Technology | Method for detoxifying dioxins in incineration ash |
CN100588473C (en) * | 2005-01-28 | 2010-02-10 | 现代建设株式会社 | Method and system for removing chloride contained in bottom dust |
CN1947872A (en) * | 2006-11-09 | 2007-04-18 | 上海大学 | Water washing pretreatment method for making fly-ash from incineration harmless |
CN101182144A (en) * | 2007-11-21 | 2008-05-21 | 清华大学 | Cement kiln calcining resource method for domestic waste burning fly ash |
CN104084415A (en) * | 2014-07-02 | 2014-10-08 | 天津壹鸣环境工程有限公司 | Technology for reducing waste incineration fly ash via water logging pretreatment |
CN104998885A (en) * | 2015-03-06 | 2015-10-28 | 大峘集团有限公司 | Water-saving desulfurized ash dechlorinating method and device |
CN105385855A (en) * | 2015-11-17 | 2016-03-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Dechlorination method for chlorination process titanium extracting tailing slag |
CN109107074A (en) * | 2017-06-24 | 2019-01-01 | 马井芳 | A kind of sulfuric acid refining preprocessing method of incineration ash of household rubbish |
CN109956690B (en) * | 2019-03-28 | 2021-09-14 | 天津中材工程研究中心有限公司 | Method for treating fly ash generated by burning household garbage in cement industry |
CN111454008A (en) * | 2020-04-11 | 2020-07-28 | 青岛惠城环保科技股份有限公司 | Zero-landfill technical method for waste incineration fly ash |
-
2020
- 2020-11-16 CN CN202011275799.7A patent/CN112570432B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN112570432A (en) | 2021-03-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101690888A (en) | Method for preparing chemical absorbent with porous mineral | |
CN109987639A (en) | A kind of method that aluminium strengthens red mud dealkalization and separates and recovers aluminium, iron | |
CN108654347B (en) | Method for recycling fluoride system electrolytic rare earth waste gas | |
CN105399116A (en) | System for treating waste acid with organic matters and treatment method and application of system | |
CN112844447B (en) | Zeolite-based denitration catalyst and preparation method and application thereof | |
CN103566728B (en) | For the equipment of flue gas desulfuration and denitrification | |
CN110385104A (en) | A kind of modified zeolite flyash composite adsorbing material and preparation method thereof | |
CN105238488B (en) | A kind of dealkalization method of coal | |
CN114671636A (en) | Method for harmless treatment of secondary aluminum ash by alkalescent water washing | |
CN107158799B (en) | A kind of composite filtering material fiber and preparation method for SCR dedusting denitration | |
CN109111974A (en) | A kind of deashing method of biomass | |
CN112570432B (en) | Dechlorination method for coal-fired power plant desulfurization wastewater drying ash | |
CN111097277A (en) | Waste nitric acid treatment method | |
CN107261644B (en) | A kind of difunctional composite filtering material fiber of low temperature dedusting-denitration and preparation method | |
CN105289758A (en) | Efficient chelating regeneration method for calcium-poisoned denitration catalyst | |
CN106732522A (en) | The preparation method of carrying transition metal oxide catalyst | |
CN104857998A (en) | Efficient regenerating method for As-poisoned denitration catalyst | |
CN105728064A (en) | Method for cleaning and regenerating SCR denitration catalyst for potassium and sodium poisoning deactivation | |
CN115414956A (en) | Cuprous ion doped g-C 3 N 4 Composite material and preparation method and application thereof | |
CN112143902B (en) | Method for respectively recovering titanium, tungsten and vanadium from invalid SCR denitration catalyst | |
CN114873881A (en) | Red mud resource utilization process based on gypsum hydrothermal dealkalization and titanium dioxide waste acid iron extraction | |
CN204574057U (en) | Sludge anhydration burning and innoxious flue gas processing device | |
CN113457418A (en) | Device and method for ultralow-emission coupling fly ash treatment of waste incineration flue gas | |
CN106268785B (en) | A kind of SCR denitration and preparation method thereof | |
CN107032758B (en) | Method for preparing gas purification porous ceramic by using sludge and cow dung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Chen Biao Inventor after: Sheng Jiawei Inventor after: Sun Min Inventor after: Sun Qing Inventor after: Zhang Jian Inventor after: Qin Ganghua Inventor after: Tong Xiaozhong Inventor after: Ye Qing Inventor after: Zhang Lin Inventor after: Lei Shiyi Inventor after: Yu Sanchuan Inventor after: Chen Yufan Inventor after: Feng Xiangdong Inventor before: Chen Biao Inventor before: Tong Xiaozhong Inventor before: Lei Shiyi Inventor before: Chen Yufan Inventor before: Feng Xiangdong Inventor before: Sheng Jiawei Inventor before: Sun Min Inventor before: Sun Qing Inventor before: Zhang Jian |