JP2022539963A - 水処理残留物を加工するための方法及び装置 - Google Patents
水処理残留物を加工するための方法及び装置 Download PDFInfo
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- JP2022539963A JP2022539963A JP2021571876A JP2021571876A JP2022539963A JP 2022539963 A JP2022539963 A JP 2022539963A JP 2021571876 A JP2021571876 A JP 2021571876A JP 2021571876 A JP2021571876 A JP 2021571876A JP 2022539963 A JP2022539963 A JP 2022539963A
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- residue
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- temperature
- water treatment
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000012545 processing Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 86
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 21
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 13
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000011368 organic material Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 7
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 9
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910001424 calcium ion Inorganic materials 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 8
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 6
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000011398 Portland cement Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- -1 sulphate ions Chemical class 0.000 claims description 5
- 229910001653 ettringite Inorganic materials 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims description 2
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- 230000003647 oxidation Effects 0.000 claims 1
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- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001035 drying Methods 0.000 description 11
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- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 4
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- 239000000203 mixture Substances 0.000 description 4
- 239000001175 calcium sulphate Substances 0.000 description 3
- 235000011132 calcium sulphate Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [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 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910018626 Al(OH) Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000005345 coagulation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
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- 239000000446 fuel Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
Description
Al2(SO4)3・14H2O→2Al(OH)3(s)+6H++3SO4 2-+8H2O
Claims (33)
- 水硬結合剤の製造に使用するための水処理残留物又は他の非晶質酸化アルミニウム若しくは水酸化アルミニウムに富む廃棄物残留物を加工する方法であって、
水を除去し、含有される有機材料を酸化させるために前記残留物を加熱するステップを含み、
前記残留物が800℃以下の温度に加熱されるように前記残留物の温度を制御する、ことを特徴とする方法。 - 前記残留物が700℃以下、より好ましくは650℃以下の温度に加熱されるように前記残留物の温度を制御するステップを含む、ことを特徴とする請求項1に記載の方法。
- 前記残留物が350℃~650℃の温度に加熱されるように前記残留物の温度を制御するステップを含む、ことを特徴とする請求項1に記載の方法。
- 前記残留物が400℃~500℃の温度に加熱されるように前記残留物の温度を制御するステップを含む、ことを特徴とする請求項1に記載の方法。
- 前記残留物中に存在する非晶質酸化アルミニウム及び/又は水酸化アルミニウムが非晶質状態を維持するように、前記残留物の温度を加熱中に制御する、ことを特徴とする請求項1~4のいずれかに記載の方法。
- 前記残留物を加熱チャンバ内で加熱し、
前記チャンバへの空気及び/若しくは水の付加によって、かつ/あるいは前記加熱チャンバへの熱の供給を制御することによって、前記残留物の温度を制御する、ことを特徴とする請求項1~5のいずれかに記載の方法。 - 前記残留物中のすべての有機材料又は実質的にすべての有機材料の確実な酸化に適した速度で、空気を前記加熱チャンバに添加する、ことを特徴とする請求項6に記載の方法。
- 前記加熱チャンバの外部を加熱することにより、前記加熱チャンバ内の前記残留物を間接的に加熱する、ことを特徴とする請求項6又は請求項7に記載の方法。
- 前記加熱チャンバの外部に直接作用するバーナーにより、前記加熱チャンバの外部を加熱する、ことを特徴とする請求項8に記載の方法。
- 前記加熱チャンバは、バーナーからの高温ガスを受ける加熱ジャケット内に配置される、ことを特徴とする請求項8に記載の方法。
- 加熱前に少なくとも部分的に前記残留物を脱水する、ことを特徴とする請求項1~10のいずれかに記載の方法。
- 機械的プロセスにより前記残留物を脱水する、ことを特徴とする請求項11に記載の方法。
- ベルト乾燥機又は回転乾燥機により前記残留物を脱水する、ことを特徴とする請求項12に記載の方法。
- 20%~40%の含水量を有するように前記残留物を脱水する、ことを特徴とする請求項11~13のいずれかに記載の方法。
- 粒径が40ミクロン又は約40ミクロンとなるように、加熱後に前記残留物をミル粉砕及び/又は粉砕する、ことを特徴とする請求項1~14のいずれかに記載の方法。
- 非晶質酸化アルミニウムを非晶質水酸化アルミニウムに変換するように、加熱後に前記残留物を水和させる、ことを特徴とする請求項1~15のいずれかに記載の方法。
- エトリンガイトを形成するように、水の存在下で、前記残留物をカルシウムイオン源及び硫酸イオン源と混合する、ことを特徴とする請求項1~16のいずれかに記載の方法。
- 水の存在下で、前記残留物を、ポルトランドセメント、消石灰及び硫酸カルシウムと混合する、ことを特徴とする請求項17に記載の方法。
- 水の存在下で、前記残留物をカルシウムイオン源と混合する、ことを特徴とする請求項1~16のいずれかに記載の方法。
- 水硬結合剤の製造に使用するための水処理残留物又は他の非晶質酸化アルミニウム若しくは水酸化アルミニウムに富む廃棄物残留物を加工するための装置であって、
前記残留物を内部で加熱する加熱チャンバと、
前記加熱チャンバを加熱するための手段と、
前記加熱チャンバの温度を制御するための手段と、
を備える、ことを特徴とする装置。 - 前記加熱チャンバは、前記加熱チャンバの外壁に作用するバーナーによって加熱される、ことを特徴とする請求項20に記載の装置。
- 前記加熱チャンバは、燃焼チャンバから前記加熱チャンバを囲う加熱ジャケットに高温ガスを導入することによって加熱される、ことを特徴とする請求項20に記載の装置。
- 前記加熱チャンバに空気を付加するための手段を備える、ことを特徴とする請求項20~22のいずれかに記載の装置。
- 前記加熱チャンバに付加された前記空気を予熱するために、前記加熱手段からの燃焼ガスを使用する、ことを特徴とする請求項22に記載の装置。
- 前記加熱チャンバは、加熱中に回転するように適合される、ことを特徴とする請求項19~23のいずれかに記載の装置。
- 前記加熱チャンバは、長手方向軸を中心に回転するように取り付けられた管状ドラムを備え、前記管状ドラムは、一端に入口を有し、他端に出口を有する、ことを特徴とする請求項23に記載の装置。
- 前記水処理残留物の含水量を低減するために、前記加熱チャンバの上流に脱水手段をさらに備える、ことを特徴とする請求項20~26のいずれかに記載の装置。
- 加熱後の前記水処理残留物の粒径を低減するために、前記加熱チャンバの下流にミル粉砕及び/又は粉砕手段をさらに備える、ことを特徴とする請求項20~27のいずれかに記載の装置。
- 前記温度制御手段は、前記水処理残留物の温度を700℃以下に制限するように適合される、ことを特徴とする請求項20~28のいずれかに記載の装置。
- 前記温度制御手段は、前記水処理残留物の温度を650℃以下に制限するように適合される、ことを特徴とする請求項20~28のいずれかに記載の装置。
- 前記温度制御手段は、前記加熱チャンバ内の前記水処理残留物の温度を350℃~650℃に制御するように適合される、ことを特徴とする請求項20~30のいずれかに記載の装置。
- 前記温度制御手段は、前記加熱チャンバ内の前記水処理残留物の温度を400℃~500℃に制御するように適合される、ことを特徴とする請求項20~31のいずれかに記載の装置。
- 前記装置が、請求項1~19のいずれかに記載の方法を実施するように構成されている、ことを特徴とする請求項20~32のいずれかに記載の装置。
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GB2003674.5A GB2592985A (en) | 2019-06-12 | 2020-03-13 | A method for the manufacture of hydraulic binders from water treatment residuals |
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PCT/EP2020/066313 WO2020249736A1 (en) | 2019-06-12 | 2020-06-12 | A method and apparatus for processing water treatment residuals |
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