JP4431767B2 - 飛灰の湿式処理法 - Google Patents
飛灰の湿式処理法 Download PDFInfo
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- JP4431767B2 JP4431767B2 JP2003365706A JP2003365706A JP4431767B2 JP 4431767 B2 JP4431767 B2 JP 4431767B2 JP 2003365706 A JP2003365706 A JP 2003365706A JP 2003365706 A JP2003365706 A JP 2003365706A JP 4431767 B2 JP4431767 B2 JP 4431767B2
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- filtrate
- treatment
- fly ash
- residue
- solid
- Prior art date
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- Expired - Fee Related
Links
- 238000003672 processing method Methods 0.000 title description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 73
- 239000010881 fly ash Substances 0.000 claims description 55
- 239000000706 filtrate Substances 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 42
- 239000011701 zinc Substances 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 34
- 238000002386 leaching Methods 0.000 claims description 31
- 229910052725 zinc Inorganic materials 0.000 claims description 26
- 239000002253 acid Substances 0.000 claims description 22
- 229910052602 gypsum Inorganic materials 0.000 claims description 20
- 239000010440 gypsum Substances 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 17
- 238000000926 separation method Methods 0.000 claims description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 14
- 239000003929 acidic solution Substances 0.000 claims description 11
- 230000003472 neutralizing effect Effects 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 239000002956 ash Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 239000000920 calcium hydroxide Substances 0.000 claims description 4
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 4
- 159000000011 group IA salts Chemical class 0.000 claims 1
- 230000008569 process Effects 0.000 description 21
- 238000006386 neutralization reaction Methods 0.000 description 20
- 229910001385 heavy metal Inorganic materials 0.000 description 18
- 239000011133 lead Substances 0.000 description 17
- 239000011575 calcium Substances 0.000 description 16
- 238000003723 Smelting Methods 0.000 description 14
- 229910052802 copper Inorganic materials 0.000 description 13
- 239000010949 copper Substances 0.000 description 13
- 229910052745 lead Inorganic materials 0.000 description 13
- 229910052710 silicon Inorganic materials 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 10
- 229910052791 calcium Inorganic materials 0.000 description 8
- 229920002472 Starch Polymers 0.000 description 7
- 239000008107 starch Substances 0.000 description 7
- 235000019698 starch Nutrition 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- 239000001110 calcium chloride Substances 0.000 description 4
- 229910001628 calcium chloride Inorganic materials 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 150000004683 dihydrates Chemical class 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000009854 hydrometallurgy Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007131 hydrochloric acid regeneration reaction Methods 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/28—Obtaining zinc or zinc oxide from muffle furnace residues
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/30—Incineration ashes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
- F23J2900/01004—Separating water from ash
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Gasification And Melting Of Waste (AREA)
- Removal Of Specific Substances (AREA)
- Extraction Or Liquid Replacement (AREA)
Description
焼却灰や飛灰をスラグ化する溶融炉から発生した飛灰AおよびBと,一般ごみ焼却時に発生する焼却灰を直接的に溶融スラグ化できるようにした直接溶融炉から派生した飛灰CおよびDとを,等量づつ混合して混合飛灰Eとした。これら飛灰A〜Eの品位を表1に示した。
酸浸出処理したあと,中和1の処理の前に,加圧濾過器による固液分離(中間固液分離と呼ぶ)を実施し,この中間固液分離で得た濾液に対して中和1の処理を行った以外は,実施例1を繰り返した。この場合,中間固液分離における 0.3MPaの加圧下での濾過速度は 3.0〜10L/m2/min で残渣中の水分は30〜40%であり,中和1処理後の固液分離では0.5 MPaの加圧下での濾過速度が1.5 〜 5.5L/m2/min で残渣中の水分は45〜70%であった。この両者の濾過速度は,実施例1の中和1処理後の固液分離での濾過速度15〜 18
L/m2/min と比べると,非常に遅くなっている。
Claims (3)
- 飛灰をpH10以下のアルカリ性の洗浄水で水洗処理したあと固液分離して該飛灰中のアルカリ塩類を除去する工程と、
該水洗処理後の飛灰をpH3.5以下の塩酸酸性溶液を用いて酸浸出処理し、この処理液に中和剤を添加してpH3.5超え〜5の範囲に中和したあと固液分離して濾液L1と脈石系残渣P1を採取する工程と、
前記の濾液L1に中和剤を添加してpH5超え〜9の範囲に中和したあと固液分離して濾液L2と亜鉛リッチ系残渣P2を採取する工程と、
前記の濾液L2に硫酸を添加したあと固液分離して濾液L3と石膏系残渣P3を採取する工程と、
を有する飛灰の湿式処理法。 - 前記酸浸出処理後の液に添加する中和剤が炭酸カルシウムであり、前記濾液L1に添加する中和剤が消石灰である請求項1に記載の飛灰の湿式処理法。
- 濾液L3は、酸浸出処理用に再利用される請求項1または2に記載の飛灰の湿式処理法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003365706A JP4431767B2 (ja) | 2003-10-27 | 2003-10-27 | 飛灰の湿式処理法 |
PCT/JP2004/016202 WO2005040437A1 (ja) | 2003-10-27 | 2004-10-26 | 飛灰の湿式処理法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003365706A JP4431767B2 (ja) | 2003-10-27 | 2003-10-27 | 飛灰の湿式処理法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005126798A JP2005126798A (ja) | 2005-05-19 |
JP4431767B2 true JP4431767B2 (ja) | 2010-03-17 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003365706A Expired - Fee Related JP4431767B2 (ja) | 2003-10-27 | 2003-10-27 | 飛灰の湿式処理法 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4431767B2 (ja) |
WO (1) | WO2005040437A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102186054B1 (ko) * | 2020-05-25 | 2020-12-07 | (주)에코이노베이션 | 중금속을 포함하는 비산재의 재활용 처리장치 및 그 처리방법 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2921715B1 (fr) * | 2007-09-28 | 2014-08-29 | Lab Sa | Procede pour la detoxification et pour l'extraction des metaux de machefers et de cendres volantes issus de l'incineration |
CN104388685B (zh) * | 2014-10-30 | 2016-07-20 | 株洲冶炼集团股份有限公司 | 从氧化锌烟灰中回收碲铜铋的方法 |
WO2018029290A1 (en) * | 2016-08-11 | 2018-02-15 | Stena Recycling International Ab | Co-treatment of flue gas cleaning waste and acidic scrubber liquid |
PL3556468T3 (pl) * | 2018-04-19 | 2021-04-19 | Norsep As | Sposób i urządzenie do utworzenia zawiesiny częściowo rozpuszczonego popiołu lotnego w kwasie mineralnym |
CN110607454B (zh) * | 2019-09-29 | 2021-03-23 | 新中天环保股份有限公司 | 一种从垃圾焚烧二次飞灰中提取重金属的方法 |
NO20210383A1 (en) * | 2021-03-24 | 2022-09-26 | Noah Solutions As | Method and apparatus for neutralizing and stabilizing of fly ash |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5222737B2 (ja) * | 1973-02-24 | 1977-06-20 | ||
JP3300081B2 (ja) * | 1992-12-02 | 2002-07-08 | 同和鉱業株式会社 | 焼却炉および溶融炉からの飛灰の処理方法 |
JPH08117724A (ja) * | 1994-10-26 | 1996-05-14 | Dowa Mining Co Ltd | 焼却炉または溶融炉からの飛灰の処理方法 |
JPH09316557A (ja) * | 1996-05-29 | 1997-12-09 | Mitsubishi Heavy Ind Ltd | 飛灰からの有価物回収方法 |
JPH11128872A (ja) * | 1997-10-29 | 1999-05-18 | Furukawa Co Ltd | 溶融飛灰の水洗い処理設備 |
JP3640288B2 (ja) * | 1998-08-10 | 2005-04-20 | 株式会社荏原製作所 | カルシウム含有焼却飛灰及び溶融飛灰の処理方法 |
JP3536901B2 (ja) * | 1998-10-01 | 2004-06-14 | 三菱マテリアル株式会社 | 飛灰からの有価金属回収方法 |
JP3646245B2 (ja) * | 1998-11-13 | 2005-05-11 | 同和鉱業株式会社 | 重金属含有飛灰の処理方法 |
JP2000354843A (ja) * | 1999-06-16 | 2000-12-26 | Chiyoda Corp | 重金属類を含む固体の処理方法および処理システム |
JP4277108B2 (ja) * | 1999-09-27 | 2009-06-10 | Dowaエコシステム株式会社 | 飛灰からの重金属回収方法 |
JP3962855B2 (ja) * | 2001-07-19 | 2007-08-22 | 日立造船株式会社 | 飛灰からの重金属の回収方法 |
JP3574928B2 (ja) * | 2002-02-15 | 2004-10-06 | 同和鉱業株式会社 | 焼却炉および溶融炉からの飛灰の処理方法 |
-
2003
- 2003-10-27 JP JP2003365706A patent/JP4431767B2/ja not_active Expired - Fee Related
-
2004
- 2004-10-26 WO PCT/JP2004/016202 patent/WO2005040437A1/ja active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102186054B1 (ko) * | 2020-05-25 | 2020-12-07 | (주)에코이노베이션 | 중금속을 포함하는 비산재의 재활용 처리장치 및 그 처리방법 |
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Publication number | Publication date |
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JP2005126798A (ja) | 2005-05-19 |
WO2005040437A1 (ja) | 2005-05-06 |
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