JP5211427B2 - 地下水の浄化方法 - Google Patents
地下水の浄化方法 Download PDFInfo
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- JP5211427B2 JP5211427B2 JP2006027290A JP2006027290A JP5211427B2 JP 5211427 B2 JP5211427 B2 JP 5211427B2 JP 2006027290 A JP2006027290 A JP 2006027290A JP 2006027290 A JP2006027290 A JP 2006027290A JP 5211427 B2 JP5211427 B2 JP 5211427B2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 102
- 239000003795 chemical substances by application Substances 0.000 claims description 52
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- 238000001179 sorption measurement Methods 0.000 claims description 32
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 18
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- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 10
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- 239000001095 magnesium carbonate Substances 0.000 claims description 10
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- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 7
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 5
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 5
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 5
- 229960001545 hydrotalcite Drugs 0.000 claims description 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical group [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 2
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- 239000000292 calcium oxide Substances 0.000 claims description 2
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- 239000011575 calcium Substances 0.000 description 8
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- 239000004567 concrete Substances 0.000 description 6
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- 229910052749 magnesium Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
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- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
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- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
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- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
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- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
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- Processing Of Solid Wastes (AREA)
- Removal Of Specific Substances (AREA)
- Water Treatment By Sorption (AREA)
Description
これらスケール成分除去層及びフッ素浄化層は、地下水の流れに対して下流側の地中に設けることが好ましく(請求項4)、これにより現位置にて地下水流をスケール成分除去層及びフッ素浄化層に通過させて効率的に浄化することができる。
海浜地区の汚染サイトより採取した高濃度の硬度成分を含むフッ素汚染地下水について、酸化マグネシウムをフッ素除去剤として用いて、フッ素の除去試験を行った。
比較として、採取した地下水を前処理無しでフッ素除去剤と混合した。
2 帯水層
3 不透水層(又は難透水層)
4 地下水位
5 スケール成分除去壁
6 フッ素浄化壁
7 矢板
8 汚染土壌
9 遮水壁
10 汚染領域
11 地下水流出部
12,12A 水処理部
12a,23a スケール成分除去剤の層
12b,23b フッ素の吸着除去剤の層
12c,23c pH調整剤の層
13 板材
14,14A,14B 集水路
20 排水管
21 集水容器
22a〜22d 透水性材料の層
24 収容体
24d 流入部
24e 流出口
Claims (7)
- 硬度成分及び/又は、硬度成分と反応して不溶性塩を生成させるアニオン(以下、硬度成分と、このアニオンとを「スケール成分」と総称す。)を含むフッ素汚染地下水を浄化する方法において、該地下水を、スケール成分除去剤及びアルカリ成分を含む透水性の層(以下「スケール成分除去層」と称す。)に通過させて地下水をpH9〜11のアルカリ性とした後、フッ素の吸着除去剤を含む透水性の層(以下「フッ素浄化層」と称す。)に通過させる地下水の浄化方法であって、
前記スケール成分除去剤が、炭酸カルシウム、炭酸カルシウムを含む鉱物、炭酸マグネシウム、及び炭酸マグネシウムを含む鉱物よりなる群から選ばれる1種又は2種以上であり、
前記アルカリ成分が、生石灰及び/又は消石灰であることを特徴とする地下水の浄化方法。 - 請求項1において、該フッ素の吸着除去剤が、酸化マグネシウム、水酸化マグネシウム、ハイドロタルサイト、酸化ランタン、及び酸化セリウムよりなる群から選ばれる1種又は2種以上であることを特徴とする地下水の浄化方法。
- 請求項1又は2において、該スケール成分除去層及び/又はフッ素浄化層は、更に透水性材料を含むことを特徴とする地下水の浄化方法。
- 請求項1ないし3のいずれか1項において、前記スケール成分除去層及びフッ素浄化層を、該地下水の流れに対して下流側の地中に設けることを特徴とする地下水の浄化方法。
- 請求項1ないし4のいずれか1項において、該地下水が、汚染土壌の原位置封じ込め工法において発生したフッ素汚染地下水であることを特徴とする地下水の浄化方法。
- 請求項1ないし5のいずれか1項において、該地下水がホウフッ化物イオンを含むことを特徴とする地下水の浄化方法。
- 請求項1ないし6のいずれか1項において、該フッ素浄化層を通過した地下水を、更に酸性物質を含む透水性の層(以下「pH調整層」と称す。)に通過させることを特徴とする地下水の浄化方法。
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JP2006027290A JP5211427B2 (ja) | 2006-02-03 | 2006-02-03 | 地下水の浄化方法 |
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JP2006027290A JP5211427B2 (ja) | 2006-02-03 | 2006-02-03 | 地下水の浄化方法 |
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JP5211427B2 true JP5211427B2 (ja) | 2013-06-12 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4600337B2 (ja) * | 2006-04-14 | 2010-12-15 | 栗田工業株式会社 | フッ素汚染地下水の浄化方法 |
JP2009112970A (ja) * | 2007-11-08 | 2009-05-28 | Nippon Sheet Glass Co Ltd | 汚染成分拡散防止用混合物及び汚染成分拡散防止方法 |
JP5208599B2 (ja) * | 2008-07-07 | 2013-06-12 | 新日鉄住金エンジニアリング株式会社 | 硝酸性窒素含有地下水の浄化方法 |
JP5720105B2 (ja) * | 2010-03-30 | 2015-05-20 | 栗田工業株式会社 | 透過性反応壁及び地下水浄化構造 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002273419A (ja) * | 2001-03-22 | 2002-09-24 | Miyama Kk | フッ素含有水処理剤及びその製造方法 |
JP2004122113A (ja) * | 2002-08-07 | 2004-04-22 | Mitsui Chemicals Engineering Co Ltd | フッ素化合物含有排水の高度処理装置 |
JP4142994B2 (ja) * | 2002-09-02 | 2008-09-03 | 株式会社東芝 | フッ素含有水の処理方法およびそのための処理装置 |
JP4329361B2 (ja) * | 2003-02-26 | 2009-09-09 | 栗田工業株式会社 | 地下水浄化壁及び地下水の浄化方法 |
JP2004283760A (ja) * | 2003-03-24 | 2004-10-14 | Kurita Water Ind Ltd | 地下水の浄化方法 |
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