JPH01130778A - アオコの回収方法 - Google Patents
アオコの回収方法Info
- Publication number
- JPH01130778A JPH01130778A JP62288520A JP28852087A JPH01130778A JP H01130778 A JPH01130778 A JP H01130778A JP 62288520 A JP62288520 A JP 62288520A JP 28852087 A JP28852087 A JP 28852087A JP H01130778 A JPH01130778 A JP H01130778A
- Authority
- JP
- Japan
- Prior art keywords
- green algae
- recovering
- recovery
- water
- floated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011084 recovery Methods 0.000 title abstract description 13
- 241000195628 Chlorophyta Species 0.000 title abstract 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 241000192700 Cyanobacteria Species 0.000 claims description 8
- 241000195493 Cryptophyta Species 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 239000000701 coagulant Substances 0.000 claims 1
- 230000001012 protector Effects 0.000 abstract description 5
- 239000007795 chemical reaction product Substances 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000002734 clay mineral Substances 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000004794 expanded polystyrene Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
-
- G02F2001/133749—
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Floating Material (AREA)
Abstract
め要約のデータは記録されません。
Description
オコを回収船で回収するか、又は原水をタンクに吸引し
て浄化装置で処理した後にその処理水を湖沼に戻して、
それを繰り返すうちに徐々に浄化すると言う2通りの方
法があったが、このような従来の方法では、1日当たり
の処理量が自然条件やプラントの大きさに委ねられ、現
状では満足の行く成果が得られていない。
ではなく回収にムラがあった。
収方法を得るにある。
を不透水性部材によって囲む工程と、この囲まれた区域
内に凝集剤を散布撹拌する工程と、水面に浮上したアオ
コを回収船にて回収する工程とより成ることを特徴とす
る。
とする例えば水深3mの区域を複数の小さな部分に分割
し、この部分をシルトプロテクタ−1によって囲み例え
ば20mX40mの四角の区域に区画する。
すように直径1m、長さ20mの発泡スチロール製の丸
棒状フロート2の下部に高さ約5mの不透水性のスカー
ト3をフロートカバー4を介して取り付け、このスカー
ト3の下部には重錘用チェーン5を固定したものを第1
図に示すように6個互いに接続して用い、夫々ロー16
とアンカー7で水底に固定したものである。
の区域に回収機構8を有する回収船9を浮かべると共に
この区域内に凝集剤、例えば粘土鉱物とAhOs及びF
ezesの無機酸との粉末状反応生成物から成る凝集剤
を散布撹拌後フロック状態で浮上したアオコを回収船9
を例えば毎分1〜2mの速度で移動して回収し脱水せし
める。
収船9の前面に配置した前面開口の回収箱10と、この
前面開口を塞ぐ水面より僅か、例えば8cm低い堰11
と、前期回収箱10内に配置した水中吸引ポンプ12と
、前記回収箱10の前面開口より両側前方に向かって放
射状に伸びその先端が前記シルトプロテクタ−1によっ
て区画された区域の両側辺に達する誘導枠13と、前記
回収船9上に配置されホース14を介して前記水中吸引
ポンプ12に連通された脱水器15とにより構成する。
9の前面にその基端を回動自在に枢支したパイプ16と
、このパイプ16の下部に取り付けた不透水性のスカー
ト17と、このスカート17の下部に固定した重錘用チ
ェーン18と、同じく前記パイプ16の下部に互いに離
間して取り付けた発泡スチロール製の2つ割りフロート
19とにより構成せしめる。
めることによって水面に浮上したアオコが誘導枠13に
誘導され堰工1を介して回収箱1Oに取り込まれるから
これを効率良く回収箱10内に回収できる利点がある。
テクタ−の斜視図、第3図はその正面図、第4図は本発
明方法説明用斜視図、第5図はその説明用側面図、第6
図は誘導枠の平面図、第7図はその正面図、第8図はそ
の斜視図で、ある。 1・・・シルトプロテクタ−12,19・・・フロート
、3.17・・・スカート、4・・・フロートカバー、
5,18・・・チェーン、6・・・ロープ、′7・・・
アンカー、8・・・回収機構、9・・・回収船、10・
・・回収箱、11・・・堰、12・・・ポンプ、13・
・・誘導枠、14・・・ホース、15・・・脱水器、1
6・・・パイプ、20・・・浮上アオコ、21・・・水
底。 第1巳 ′!112目 脂3洞 虐 第6広 島70
Claims (1)
- アオコを回収せんとする水域を不透水性部材によって囲
む工程と、この囲まれた区域内に凝集剤を散布撹拌する
工程と、水面に浮上したアオコを回収船にて回収する工
程とより成ることを特徴とするアオコの回収方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62288520A JPH01130778A (ja) | 1987-11-17 | 1987-11-17 | アオコの回収方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62288520A JPH01130778A (ja) | 1987-11-17 | 1987-11-17 | アオコの回収方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01130778A true JPH01130778A (ja) | 1989-05-23 |
Family
ID=17731296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62288520A Pending JPH01130778A (ja) | 1987-11-17 | 1987-11-17 | アオコの回収方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01130778A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04126590A (ja) * | 1990-09-14 | 1992-04-27 | Hitachi Kiden Kogyo Ltd | 水域の浄化方法 |
CN1323035C (zh) * | 2004-10-19 | 2007-06-27 | 殷肇君 | 清除水域中蓝藻的方法 |
-
1987
- 1987-11-17 JP JP62288520A patent/JPH01130778A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04126590A (ja) * | 1990-09-14 | 1992-04-27 | Hitachi Kiden Kogyo Ltd | 水域の浄化方法 |
CN1323035C (zh) * | 2004-10-19 | 2007-06-27 | 殷肇君 | 清除水域中蓝藻的方法 |
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