JP6133561B2 - 砒素の処理方法 - Google Patents
砒素の処理方法 Download PDFInfo
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- JP6133561B2 JP6133561B2 JP2012188810A JP2012188810A JP6133561B2 JP 6133561 B2 JP6133561 B2 JP 6133561B2 JP 2012188810 A JP2012188810 A JP 2012188810A JP 2012188810 A JP2012188810 A JP 2012188810A JP 6133561 B2 JP6133561 B2 JP 6133561B2
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- arsenic
- iron
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- trivalent
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- 229910052785 arsenic Inorganic materials 0.000 title claims description 75
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims description 75
- 238000000034 method Methods 0.000 title claims description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 74
- 229910052742 iron Inorganic materials 0.000 claims description 31
- 241000894006 Bacteria Species 0.000 claims description 26
- 239000002689 soil Substances 0.000 claims description 20
- BMWMWYBEJWFCJI-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Fe+3].[O-][As]([O-])([O-])=O BMWMWYBEJWFCJI-UHFFFAOYSA-K 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 229940041514 candida albicans extract Drugs 0.000 claims description 8
- 239000012138 yeast extract Substances 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 230000003100 immobilizing effect Effects 0.000 claims description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims 1
- 239000001888 Peptone Substances 0.000 description 19
- 108010080698 Peptones Proteins 0.000 description 19
- 239000000284 extract Substances 0.000 description 19
- 235000019319 peptone Nutrition 0.000 description 19
- AIUDWMLXCFRVDR-UHFFFAOYSA-N dimethyl 2-(3-ethyl-3-methylpentyl)propanedioate Chemical class CCC(C)(CC)CCC(C(=O)OC)C(=O)OC AIUDWMLXCFRVDR-UHFFFAOYSA-N 0.000 description 18
- 229940066779 peptones Drugs 0.000 description 18
- 239000002609 medium Substances 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 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 10
- 239000006228 supernatant Substances 0.000 description 6
- -1 and as a result Chemical compound 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- RMBBSOLAGVEUSI-UHFFFAOYSA-H Calcium arsenate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-][As]([O-])([O-])=O.[O-][As]([O-])([O-])=O RMBBSOLAGVEUSI-UHFFFAOYSA-H 0.000 description 3
- 229940103357 calcium arsenate Drugs 0.000 description 3
- 239000001963 growth medium Substances 0.000 description 3
- 150000002506 iron compounds Chemical class 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 241000132982 Acidianus brierleyi Species 0.000 description 2
- 241001134777 Sulfobacillus Species 0.000 description 2
- 241000205101 Sulfolobus Species 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 230000009036 growth inhibition Effects 0.000 description 2
- 238000011081 inoculation Methods 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000036962 time dependent Effects 0.000 description 2
- 241000726121 Acidianus Species 0.000 description 1
- 241000205069 Acidianus ambivalens Species 0.000 description 1
- 241000726120 Acidianus infernus Species 0.000 description 1
- 241000521593 Acidimicrobium Species 0.000 description 1
- 241000521595 Acidimicrobium ferrooxidans Species 0.000 description 1
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 101000666896 Homo sapiens V-type immunoglobulin domain-containing suppressor of T-cell activation Proteins 0.000 description 1
- 241000219470 Mirabilis Species 0.000 description 1
- 241001134779 Sulfobacillus thermosulfidooxidans Species 0.000 description 1
- 241000205098 Sulfolobus acidocaldarius Species 0.000 description 1
- 102100038282 V-type immunoglobulin domain-containing suppressor of T-cell activation Human genes 0.000 description 1
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 1
- CBIFDJDRCNEMQB-UHFFFAOYSA-N [Al].O[As](O)(O)=O Chemical compound [Al].O[As](O)(O)=O CBIFDJDRCNEMQB-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229940000489 arsenate Drugs 0.000 description 1
- 150000001495 arsenic compounds Chemical class 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- NFMAZVUSKIJEIH-UHFFFAOYSA-N bis(sulfanylidene)iron Chemical compound S=[Fe]=S NFMAZVUSKIJEIH-UHFFFAOYSA-N 0.000 description 1
- 238000004113 cell culture Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- IJJVMEJXYNJXOJ-UHFFFAOYSA-N fluquinconazole Chemical compound C=1C=C(Cl)C=C(Cl)C=1N1C(=O)C2=CC(F)=CC=C2N=C1N1C=NC=N1 IJJVMEJXYNJXOJ-UHFFFAOYSA-N 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229940093920 gynecological arsenic compound Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 229910000339 iron disulfide Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229940097322 potassium arsenite Drugs 0.000 description 1
- HEQWEGCSZXMIJQ-UHFFFAOYSA-M potassium;oxoarsinite Chemical compound [K+].[O-][As]=O HEQWEGCSZXMIJQ-UHFFFAOYSA-M 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 229910052952 pyrrhotite Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000012137 tryptone Substances 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Processing Of Solid Wastes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Description
好熱性鉄酸化菌は、鉄鉱山の採鉱場やそこで発生した廃水、鉄分を多く含む地下水や湖沼の深層水等、自然界に広く分布している。中でも、有機成分による生育阻害の程度が過度でない菌種を用いることが好ましい。有機成分によって過度に生育阻害を受ける菌種であると、好熱性鉄酸化菌がペプトン類及び/又はエキス類によって生育阻害を受ける可能性があるためである。
培地は、二価鉄と、三価砒素と、ペプトン類及び/又はエキス類とを含有する。
4Fe2++O2+4H+→4Fe3++2H2O ・・・(1)
2Fe3++H3AsO3+H20→2Fe2++H3AsO4+2H+
・・・(2)
上記化学式(1)及び(2)によって生成する五価砒素を、再溶出し難い安定な結晶性の砒酸鉄の形態で固定化するため、例えば、下記化学式(3)のように、五価砒素を結晶性の砒酸鉄の形態で固定化してもよい。
Fe3++H3AsO4+2H2O→FeAsO4・2H20+3H+
・・・(3)
表2に示す組成の硫酸第一鉄を除いた9K培地200mLに、8.95mmol/Lの硫酸第一鉄七水和物(FeSO4・7H2O)と、6.67mmol/Lの亜砒酸カリウム(NaAsO2)とを加え(三価砒素に対する二価鉄のモル比Fe(II)/As(III)=1.3)、希硫酸でpH1.5に調整した。これに、好熱性鉄酸化菌であるAcidianus brierleyi(保存機関:Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH German Collection of Microorganisms and Cell Cultures,保存番号:1651)を1.0×107cell/mLとなるように接種した後、該培地にyeast extractを0.02g(0.01(w/v)%)添加し、70℃の恒温槽にて回転数100rpmの条件で振盪した。
硫酸第一鉄七水和物の添加量を17.9mmol/Lにし、三価砒素に対する二価鉄のモル比Fe(II)/As(III)を2.8としたこと以外は、実施例1と同様の方法にてサンプルを振盪した。
硫酸第一鉄七水和物の添加量を26.8mmol/Lにし、三価砒素に対する二価鉄のモル比Fe(II)/As(III)を4.0としたこと以外は、実施例1と同様の方法にてサンプルを振盪した。
硫酸第一鉄七水和物の添加量を36.0mmol/Lにし、三価砒素に対する二価鉄のモル比Fe(II)/As(III)を5.4としたこと以外は、実施例1と同様の方法にてサンプルを振盪した。
硫酸第一鉄七水和物及びyeast extractを添加しなかったこと以外は、実施例1と同様の方法にてサンプルを振盪した。
yeast extractを添加しなかったこと以外は、実施例1と同様の方法にてサンプルを振盪した。
硫酸第一鉄七水和物の添加量を17.9mmol/Lにし、三価砒素に対する二価鉄のモル比Fe(II)/As(III)を2.8としたこと、及びyeast extractを添加しなかったこと以外は、実施例1と同様の方法にてサンプルを振盪した。
硫酸第一鉄七水和物の添加量を26.8mmol/Lにし、三価砒素に対する二価鉄のモル比Fe(II)/As(III)を4.0としたこと、及びyeast extractを添加しなかったこと以外は、実施例1と同様の方法にてサンプルを振盪した。
硫酸第一鉄七水和物の添加量を36.0mmol/Lにし、三価砒素に対する二価鉄のモル比Fe(II)/As(III)を5.4としたこと、及びyeast extractを添加しなかったこと以外は、実施例1と同様の方法にてサンプルを振盪した。
比較例3と同じ組成の培地を、好熱性鉄酸化菌を接種せずに振盪した。
Claims (3)
- 溶液又は土壌に含まれる砒素の処理方法であって、
前記溶液又は土壌に、処理対象である前記砒素としての三価砒素に加えて、二価鉄と、好熱性鉄酸化菌と、酵母エキスとを含有させ、前記溶液又は土壌に含まれる前記三価砒素を、前記溶液又は土壌中において前記好熱性鉄酸化菌を用いて五価砒素に酸化させる砒素酸化工程を含み、
前記二価鉄の前記三価砒素に対するモル比であるFe(II)/As(III)は、1.0以上3.5以下である、砒素の処理方法。 - 前記酵母エキスの添加量は、前記溶液又は前記土壌に対して0.01w/v%以上である、請求項1に記載の砒素の処理方法。
- 前記砒素酸化工程の後に、前記五価砒素を結晶性砒酸鉄として固定化する砒素固定化工程をさらに含む、請求項1又は2に記載の砒素の処理方法。
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CN110665162A (zh) * | 2018-07-03 | 2020-01-10 | 厦门紫金矿冶技术有限公司 | 一种铜冶炼硫化砷渣转型联用固砷的方法 |
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WO2017007037A2 (en) | 2015-07-08 | 2017-01-12 | Jx Nippon Mining & Metals Corporation | Iron-oxidizing bacteria with good resistance to arsenic, a method for preparing said bacteria, a medium for said bacteria and a method for preparing scorodite using said bacteria |
JP7081758B2 (ja) * | 2017-06-01 | 2022-06-07 | 国立大学法人九州大学 | As回収方法 |
CN113751489B (zh) * | 2021-08-24 | 2023-04-07 | 江苏省农业科学院 | 基于碱性中轻度砷污染土壤改良的可持续生产稻米的方法 |
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JPS5952583A (ja) * | 1982-09-18 | 1984-03-27 | Dowa Mining Co Ltd | 鉄酸化バクテリアを使用する砒素と鉄を含有する水溶液の処理法 |
DK171869B1 (da) * | 1985-10-22 | 1997-07-21 | Takeda Chemical Industries Ltd | Fremgangsmåde til fremstilling af 2-keto-L-gulonsyre samt biologisk ren mikroorganismekultur til anvendelse ved fremgangsmåden |
JPH0228391B2 (ja) * | 1987-05-12 | 1990-06-22 | Dowa Koei Kk | Kojohaiekitonodatsuhishoriho |
JPH08187092A (ja) * | 1995-01-10 | 1996-07-23 | Sumitomo Chem Co Ltd | 好熱性微生物が有するニトリル化合物をアミド化合物に変換させる水和活性を向上させる方法 |
DE60009288T2 (de) * | 1999-06-22 | 2005-02-17 | Paques Bio Systems B.V. | Verfahren zum immobilisieren von arsen enthaltenden abfall |
JP2003112163A (ja) * | 2001-10-05 | 2003-04-15 | Toho Leo Co | 汚染土壌の浄化方法 |
JP2005000875A (ja) * | 2003-06-13 | 2005-01-06 | Kanazawa Univ Tlo Inc | 酸性廃水成分の再資源化方法及び酸性廃水処理システム |
JP4939278B2 (ja) * | 2007-03-30 | 2012-05-23 | コスモ石油株式会社 | 微生物の増殖促進方法及び活性向上方法 |
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