JP2017075204A - 有害物質の処理材及び処理方法 - Google Patents
有害物質の処理材及び処理方法 Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 46
- 239000000126 substance Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000004568 cement Substances 0.000 claims abstract description 33
- 239000002351 wastewater Substances 0.000 claims abstract description 33
- 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 claims abstract description 27
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims abstract description 26
- 229930006000 Sucrose Natural products 0.000 claims abstract description 26
- 239000005720 sucrose Substances 0.000 claims abstract description 26
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052796 boron Inorganic materials 0.000 claims abstract description 16
- 239000010802 sludge Substances 0.000 claims abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 14
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 12
- 239000011737 fluorine Substances 0.000 claims abstract description 12
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 9
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000000383 hazardous chemical Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 11
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 239000003002 pH adjusting agent Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000013056 hazardous product Substances 0.000 claims description 2
- 231100001261 hazardous Toxicity 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 15
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 8
- 150000001639 boron compounds Chemical class 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
- 150000001495 arsenic compounds Chemical class 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 150000002222 fluorine compounds Chemical class 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 230000004931 aggregating effect Effects 0.000 description 3
- 150000008064 anhydrides Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229940093920 gynecological arsenic compound Drugs 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920001282 polysaccharide Polymers 0.000 description 3
- 239000005017 polysaccharide Substances 0.000 description 3
- 150000004804 polysaccharides Chemical class 0.000 description 3
- 230000003405 preventing effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000007514 bases Chemical class 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- -1 calcium aluminates Chemical class 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 150000004781 alginic acids Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- GCPXMJHSNVMWNM-UHFFFAOYSA-N arsenous acid Chemical compound O[As](O)O GCPXMJHSNVMWNM-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
そして、この有害物質の処理材中の、セメントの含量が50〜95wt%であり、硫酸アルミニウムの含量が1〜10wt%であり、及びショ糖の含量が0.5〜5wt%であることがよい。
市販のポルトランドセメント(太平洋セメント社日高工場製)、硫酸アルミニウム(無水物)、ショ糖を表1に示す配合比(wt%)で混合して、処理材1〜3を作成した。
市販のポルトランドセメント(太平洋セメント社日高工場製)、市販の酸化マグネシウム(軽焼マグネシア)、又は硫酸アルミニウム(無水物)を単独で、又は混合して使用して、処理材4〜6とした。
ホウ素含有廃水として、ホウ素含有岩石の浸出水(ホウ素濃度108mg/L)を使用した(廃水A)。この廃水1000mL中に、処理材1、2又は3を60g添加し、25℃で15分間攪拌し静置した。24時間後、溶液を5Aのろ紙でろ過し、ろ液中のホウ素濃度を公定法により測定した。結果を表2に示す。
実施例2で使用した廃水Aを使用し、この廃水1000mL中に、処理材4、5又は6を60g添加し、実施例2と同様にしてろ液中のホウ素濃度を測定した。結果を表2に示す。
ホウ素含有廃水として、ホウ素含有岩石の浸出水(ホウ素濃度54mg/L)を使用した(廃水B)。この廃水1000mL中に、処理材1、2又は3を、60gを添加し、25℃で15分間攪拌し静置した。24時間後、溶液を5Aのろ紙でろ過し、ろ液中のホウ素濃度を測定した。結果を表3に示す。
フッ素含有廃水として、フッ素含有岩石の浸出水(フッ素濃度212mg/L)を使用した(廃水C)。この廃水1000mL中に、処理材1、2又は3を100g添加し、25℃で15分間攪拌し静置した。24時間後、溶液を5Aのろ紙でろ過し、ろ液中のフッ素濃度を公定法により測定した。結果を表4に示す。
実施例4で使用したと同じ、廃水Cを使用し、この廃水1000mL中に、処理材5又は6を100g添加し、実施例4と同様にしてろ液中のフッ素濃度を測定した。結果を表4に示す。
ヒ素含有廃水として、試薬の亜砒酸の水溶液(ヒ素濃度7.5mg/L)を使用した(廃水D)。この廃水1000mL中に、処理材1、2又は3を100g添加し、25℃で15分間攪拌し静置した。24時間後、溶液を5Aのろ紙でろ過し、ろ液中のヒ素濃度を公定法により測定した。結果を表5に示す。
実施例2及び比較例2において、廃水A1000mL中に、処理材1、2、3、4、5又は6を60g添加し、25℃で15分間攪拌し静置した。
これを3日間静置し、沈殿物の性状を調査した。結果を表6に示す。
沈殿物の固化状態の評価は次のとおり。
A;固化(非常に硬い)
B;固化(やや硬い)
C;固結(もろく、指で粉砕可能)
D;やや固結(非常にもろく、指で粉砕可能)
Claims (4)
- セメント、硫酸アルミニウム及びショ糖を含む混合物からなり、セメント、硫酸アルミニウム及びショ糖の含量の合計を100wt%としたとき、セメントの含量が50〜98wt%であり、硫酸アルミニウムの含量が1〜10wt%であり、及びショ糖の含量が0.5〜5wt%であることを特徴とするホウ素、フッ素及びヒ素から選ばれる少なくとも1種の有害化合物を含む有害物質の処理材。
- 処理材中のセメントの含量が50〜95wt%であり、硫酸アルミニウムの含量が1〜10wt%であり、及びショ糖の含量が0.5〜5wt%である請求項1に記載の有害物質の処理材。
- 請求項1又は2に記載の有害物質の処理材を、ホウ素、フッ素及びヒ素から選ばれる少なくとも1種の有害化合物を含有する廃水若しくは汚泥、又は汚染土壌に添加、混合してこの有害化合物の吸着、沈殿又は固化を行うことを特徴とする有害物質の処理方法。
- 有害化合物を含有する廃水若しくは汚泥、又は汚染土壌に、前記有害物質の処理材と共に、pH調整剤を添加・混合することを特徴とする請求項3に記載の有害物質の処理方法。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53144872A (en) * | 1977-05-25 | 1978-12-16 | Takenaka Komuten Co | Solidification method* solidifying agent and additive aid for wastes |
JPH0971777A (ja) * | 1995-09-06 | 1997-03-18 | Kokudo Sogo Kensetsu Kk | ヘドロ及び軟弱土壌の固化処理土の中和処理工法 |
JP2003305497A (ja) * | 2002-04-18 | 2003-10-28 | Kurita Water Ind Ltd | アルカリ性泥土の処理方法及びアルカリ性泥土の改質剤 |
JP2004267975A (ja) * | 2003-03-11 | 2004-09-30 | Dowa Mining Co Ltd | 廃棄物または土壌に含まれるホウ素の不溶化処理方法 |
JP2005060508A (ja) * | 2003-08-11 | 2005-03-10 | Takataro Mizuta | バガスを主原料とした土壌安定固化材 |
-
2015
- 2015-10-13 JP JP2015201949A patent/JP6551905B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53144872A (en) * | 1977-05-25 | 1978-12-16 | Takenaka Komuten Co | Solidification method* solidifying agent and additive aid for wastes |
JPH0971777A (ja) * | 1995-09-06 | 1997-03-18 | Kokudo Sogo Kensetsu Kk | ヘドロ及び軟弱土壌の固化処理土の中和処理工法 |
JP2003305497A (ja) * | 2002-04-18 | 2003-10-28 | Kurita Water Ind Ltd | アルカリ性泥土の処理方法及びアルカリ性泥土の改質剤 |
JP2004267975A (ja) * | 2003-03-11 | 2004-09-30 | Dowa Mining Co Ltd | 廃棄物または土壌に含まれるホウ素の不溶化処理方法 |
JP2005060508A (ja) * | 2003-08-11 | 2005-03-10 | Takataro Mizuta | バガスを主原料とした土壌安定固化材 |
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