JP2008239516A - 赤潮発生防止方法 - Google Patents
赤潮発生防止方法 Download PDFInfo
- Publication number
- JP2008239516A JP2008239516A JP2007079545A JP2007079545A JP2008239516A JP 2008239516 A JP2008239516 A JP 2008239516A JP 2007079545 A JP2007079545 A JP 2007079545A JP 2007079545 A JP2007079545 A JP 2007079545A JP 2008239516 A JP2008239516 A JP 2008239516A
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- red tide
- plankton
- present
- preventing
- magnesium hydroxide
- Prior art date
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- Granted
Links
- 230000003405 preventing effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 21
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 23
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 23
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000004931 aggregating effect Effects 0.000 claims abstract 2
- 239000003112 inhibitor Substances 0.000 claims description 14
- 230000001376 precipitating effect Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002244 precipitate Substances 0.000 abstract description 2
- 230000007480 spreading Effects 0.000 abstract description 2
- 230000001413 cellular effect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 12
- 241000206758 Heterosigma Species 0.000 description 10
- 239000013535 sea water Substances 0.000 description 10
- 210000004027 cell Anatomy 0.000 description 7
- 210000000170 cell membrane Anatomy 0.000 description 7
- 241000234314 Zingiber Species 0.000 description 6
- 235000006886 Zingiber officinale Nutrition 0.000 description 6
- 230000009471 action Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 235000008397 ginger Nutrition 0.000 description 6
- 241000290272 Karenia mikimotoi Species 0.000 description 5
- 241000295556 Chattonella marina Species 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 101100313164 Caenorhabditis elegans sea-1 gene Proteins 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000238 shellfish toxin Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Farming Of Fish And Shellfish (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
【解決手段】プランクトン7が発生している水域1に水酸化マグネシウムを主成分とする赤潮発生防止剤8を撒布することにより、プランクトン7を死滅させたり、凝集させて沈殿させることにより赤潮の発生を防止することを特徴とする。
【選択図】図2
Description
実施例1においては、プランクトンがカレニア・ミキモトイである場合に、本発明の水酸化マグネシウムを主成分とする赤潮防止剤8を海水に対する撒布割合(g/m2) を50、100、150、200と変化させた場合と、何も撒布しないコントロールの場合について、カレニア・ミキモトイの細胞数の時間的変化を測定した。前記撒布割合50、100、150、200(g/m2) をそれぞれ水中濃度に換算すると、85、170、250、330(mg/l)となる。をその結果は図5に示す通りであり、本発明の水酸化マグネシウムを主成分とする赤潮防止剤8の場合は、撒布から45分経過すると撒布割合が50g/m2 であっても、ほぼ全部のプランクトンが死滅している。これに対して、コントロールの場合はプランクトンはほとんど減少していない。
実施例2においては、プランクトンがシャトネラ・マリナである場合に、本発明の水酸化マグネシウムを主成分とする赤潮防止剤8を海水に対する撒布割合(g/m2) を50、100、150、200と変化させた場合と、何も撒布しないコントロールの場合について、シャトネラ・マリナの細胞数の時間的変化を測定した。その結果は図7に示す通りであり、本発明の水酸化マグネシウムを主成分とする赤潮防止剤8の場合は、撒布から120分経過すると撒布割合が50g/m2 であっても、コントロールの約14000cells/mlに対して約2000cells/mlの約1/7までに低減させられている。
実施例3においては、プランクトンがヘテロシグマ・アカシオである場合に、本発明の水酸化マグネシウムを主成分とする赤潮防止剤8を海水に対する撒布割合(g/m2) を50、100、150、200と変化させた場合と、何も撒布しないコントロールの場合について、ヘテロシグマ・アカシオの細胞数の時間的変化を測定した。その結果は図9に示す通りであり、撒布から120分経過すると撒布割合が50g/m2 であっても、コントロールの約12000cells/mlに対して約1300cells/mlの約1/9までに低減させられている。
5 赤潮
7 プランクトン
8 赤潮防止剤
Claims (2)
- プランクトンが発生している水域に水酸化マグネシウムを主成分とする赤潮発生防止剤を撒布することにより、プランクトンを死滅させたり、凝集させて沈殿させることにより赤潮の発生を防止することを特徴とする赤潮発生防止方法。
- 赤潮発生防止剤を撒布することにより水域のpHを9〜10にすることにより赤潮の発生を防止することを特徴とする請求項1に記載の赤潮発生防止方法。
Priority Applications (1)
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JP2007079545A JP5415674B2 (ja) | 2007-03-26 | 2007-03-26 | 赤潮駆除方法 |
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JP2007079545A JP5415674B2 (ja) | 2007-03-26 | 2007-03-26 | 赤潮駆除方法 |
Publications (2)
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JP2008239516A true JP2008239516A (ja) | 2008-10-09 |
JP5415674B2 JP5415674B2 (ja) | 2014-02-12 |
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JP2007079545A Active JP5415674B2 (ja) | 2007-03-26 | 2007-03-26 | 赤潮駆除方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190032233A (ko) | 2017-09-19 | 2019-03-27 | 우베 마테리알즈 가부시키가이샤 | 적조 구제제 및 이것을 이용한 적조 구제 방법 |
CN111377561A (zh) * | 2020-03-31 | 2020-07-07 | 武汉理工大学 | 一种含高浓度cod和硫化物废水的处理方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09187775A (ja) * | 1996-01-05 | 1997-07-22 | Ube Chem Ind Co Ltd | 水質並びに底質改良用の難崩壊性苦土系pH調整剤 |
JPH09239375A (ja) * | 1996-01-05 | 1997-09-16 | Ube Materials Kk | 水質並びに底質の粒状苦土系改善剤 |
JP2001181117A (ja) * | 1999-12-24 | 2001-07-03 | Naikai Engiyou Kk | 底質改良剤および底質改良方法 |
JP2003265058A (ja) * | 2002-03-18 | 2003-09-24 | Ube Material Industries Ltd | 海苔の色落ち防止方法およびこれに用いる色落ち防止剤 |
JP2004136151A (ja) * | 2002-10-15 | 2004-05-13 | Ube Material Industries Ltd | アオコの除去方法 |
JP2005015357A (ja) * | 2003-06-24 | 2005-01-20 | Nichimo Co Ltd | 赤潮発生防止剤および赤潮発生防止方法 |
-
2007
- 2007-03-26 JP JP2007079545A patent/JP5415674B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09187775A (ja) * | 1996-01-05 | 1997-07-22 | Ube Chem Ind Co Ltd | 水質並びに底質改良用の難崩壊性苦土系pH調整剤 |
JPH09239375A (ja) * | 1996-01-05 | 1997-09-16 | Ube Materials Kk | 水質並びに底質の粒状苦土系改善剤 |
JP2001181117A (ja) * | 1999-12-24 | 2001-07-03 | Naikai Engiyou Kk | 底質改良剤および底質改良方法 |
JP2003265058A (ja) * | 2002-03-18 | 2003-09-24 | Ube Material Industries Ltd | 海苔の色落ち防止方法およびこれに用いる色落ち防止剤 |
JP2004136151A (ja) * | 2002-10-15 | 2004-05-13 | Ube Material Industries Ltd | アオコの除去方法 |
JP2005015357A (ja) * | 2003-06-24 | 2005-01-20 | Nichimo Co Ltd | 赤潮発生防止剤および赤潮発生防止方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190032233A (ko) | 2017-09-19 | 2019-03-27 | 우베 마테리알즈 가부시키가이샤 | 적조 구제제 및 이것을 이용한 적조 구제 방법 |
JP2019055914A (ja) * | 2017-09-19 | 2019-04-11 | 宇部マテリアルズ株式会社 | 赤潮駆除剤及びこれを用いた赤潮駆除方法 |
CN111377561A (zh) * | 2020-03-31 | 2020-07-07 | 武汉理工大学 | 一种含高浓度cod和硫化物废水的处理方法 |
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JP5415674B2 (ja) | 2014-02-12 |
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