JP4032082B2 - Drift net algae planting net - Google Patents
Drift net algae planting net Download PDFInfo
- Publication number
- JP4032082B2 JP4032082B2 JP34651098A JP34651098A JP4032082B2 JP 4032082 B2 JP4032082 B2 JP 4032082B2 JP 34651098 A JP34651098 A JP 34651098A JP 34651098 A JP34651098 A JP 34651098A JP 4032082 B2 JP4032082 B2 JP 4032082B2
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- JP
- Japan
- Prior art keywords
- net
- planting
- drift
- algae
- algae planting
- 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.)
- Expired - Fee Related
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Classifications
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- 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
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- Artificial Fish Reefs (AREA)
- Cultivation Of Seaweed (AREA)
Description
【0001】
【発明の属する分野】
藻類は食料、飼育、工業用品、医薬品、藻類エネルギー等、その利用は多岐にわたりその量も多い、これを海洋に植栽することによって更に量の拡大と価格の低下が可能となり、リサイクル資源の有効利用が促進される。
【0002】
【従来の技術】
現状の藻類植栽はその規模も小さく、且つ内海および沿岸が主流であって、そのほとんどは固定式である。(図3,4,5)そのため海藻エネルギー等に供用可能な日本海周辺、大陸棚水域の藻類植栽海域は1%以下と報告されている。昭和55年バイオマス生産利用に関するフイジビリテイ調査240−255頁。
【0003】
【発明が解決しようとする課題】
本発明は従来の固定式植栽法による大陸棚水域のみの植栽から海洋を含めた、緩やかな海流域で藻類の大規模植栽を行うものである。
【0004】
【課題を解決するための手段】
主として深海を含む海底から大型アンカー、メインロープに連結し最適深さに調節された流し網式植栽網に藻類を植栽する。
藻類の生殖は藻類から放出する胞子によるため、緩やかな海流によって再生産が可能となり、且つ海流に順応する流し網式植栽網は海流の変化や波浪等にも最小限の抵抗ですむと共に、現在の網や綱の素材はその重さが水の重さに近似するものを自由に選べるためその構築がスリム化される。
【0005】
【作用】
藻類の多くは1年生であり、こんぶ,あらめ等は2〜3年生。唯一ジャイアントケルプ系は10年程度の寿命があるが,いずれも植栽網敷設時、植栽網に胞子を植え付け、最大成長時を選んで刈り取り、再生用に何%かを残して翌年以降はこれを繰り返す。
【0006】
【発明の実施の形態】
発明の実施の形態を図によって説明する。
図1は植栽網1ピースの鳥瞰図であり、主として深海海底に固定されたアンカー1からメインロープ2を経て自在環3が水面下約20〜30mにある、その上の海面にはメインロープ2に釣りあうブイ4が取り付けられる。自在環3から植栽網6の間に植栽網が海流に整列し易いように傾斜ロープ5が、緩衝として取付られる。植栽網6の底部には浮力調整具7が必要数取付てあり、海面上にあるブイ9の浮力と釣合っている、また植栽網の両側及び必要箇所には整列フィン8が取付られて、海流によつて常に両側へ拡張しようとする力が働き、植栽網6は設定幅を保ちながら海流と平行を保つ。
整列フィン8は飛行機の尾翼の役目をすると思えばよい。尚、ブイは波浪等などによって小破や亀裂が生じても浮力を失わないよう発泡スチロールが充填してあり、2ケの試料によって4年間のテストを行った。1ケは重りを付けて水中に。1ケはそのまま浮上させて3ケ月毎に重りを取って浮上高さを測定したが、40mm厚さの試料で全期間浮上のテストピースは36mm浮上。重りで沈下のテストピースは34mm浮上であった。
図2は植栽網の平面配列模式図である。刈り取るさい、来年度増殖用として胞子用刈り残しを行う。
【0007】
【発明の効果】
例示として海藻エネルギー用藻を日本海に多産するホンダワラとし、これを刈り取り、洋上にてそのまま処理船(基幹船約40〜50万t)でメタン発酵を行い現状では液化メタンガスとして発電所その他へ輸送しエネルギーとする。
この場合日本海に多産するホンダワラの収量統計がないが、飯田湾と小湊の統計があるのでこれを使用して計算すると
(A)小湊、飯田湾の平均のホンダワラ収量(乾量) 4.92kg/m2‥‥‥‥※1
(B)乾量1kg当たりのエネルギー 4,500kcal‥‥‥‥※2
(c)発電1kw/hのエネルギー 2,450kcal‥‥‥‥仕事常数
(D)100万kwの1年間のフル発電力
100×24×365×0.73 =6,394,800,000kw/年(実発電率)
(a)100万kw発電に要する植栽面積
であるが実稼働の御坊、大阪南港の実績によれば約700km2となり、高知県の面積で100万kw/年の電力が賄い得、全世界で利用すればエネルギー問題が解決すると共に公害除去装置を施すことなく、炭酸ガス30%減、硫黄ガス100%減、重金属等100%減が達成できる。
※1,※2…バイオマス生産利用に関するフィジビリティ調査
【図面の簡単な説明】
【図1】流し網式藻類植栽網の1ピースの鳥瞰図
【図2】流し網式藻類植栽網の平面配列模式図
【図3】ワカメ延縄式養成施設とその配置例 岩手県
【図4】マコンブの促成養殖の本養成施設 函館市周辺
【図5】マコンブの養殖施設平面図
【図6】日本海約200海里,夏の海流図(舞鶴海洋気象台)
【図7】発泡スチロール充填型ブイの各種
【図8】海流によって植栽網を整列する専用翼の分類
【図9】産業廃棄物等活用アンカー
【符号の説明】
1 アンカー
2 メインロープ
3 自在環
4 ブイ
5 傾斜ロープ
6 植栽網
7 浮力調整具
8 整列フィン
9 ブイ
10胞子用刈り残し部
11ハイゼックスロープ
12浮玉
13ブロックロープ
142tブロック
15横張りロープ
16中間ブイ
175tブロック
18コンクリートブロック(10t,15t)
19魚釣ウキ様発泡樹脂充填ブイ
20発泡樹脂
21外殻(金属、プラスチック、その他)
22ロープ
23球型樹脂充填ブイ
24筒型樹脂充填ブイ
25変形樹脂充填ブイ
26いかだ型樹脂充填ブイ
27ドラム缶型樹脂充填ブイ
28普通の翼型
29突起形状翼
30過流を利用した翼
31コンクリート
32型枠
33産業廃棄物
V 海流の速さ
L 翼の浮力(押される力)
R 抵抗力[0001]
[Field of the Invention]
Algae are food, breeding, industrial supplies, pharmaceuticals, algae energy, etc., and their use is diverse and large in quantity. By planting them in the ocean, the quantity can be increased and the price can be reduced, making it possible to effectively use recycled resources. Use is promoted.
[0002]
[Prior art]
The current algae planting is small in scale, and the inland sea and the coast are mainstream, and most of them are stationary. (Figs. 3, 4 and 5) Therefore, the algae planting area around the Sea of Japan and continental shelf water that can be used for seaweed energy etc. is reported to be 1% or less. 1980, pp. 240-255, Feasibility study on biomass production and utilization.
[0003]
[Problems to be solved by the invention]
The present invention performs large-scale planting of algae in a gentle ocean basin, including oceans, from planting only continental shelf waters by conventional fixed planting methods.
[0004]
[Means for Solving the Problems]
Algae is mainly planted from the bottom of the sea, including the deep sea, to large anchors and main ropes, and the drifting net planting net adjusted to the optimum depth.
Algae reproduction is due to spores released from the algae, so it can be regenerated by gentle ocean currents, and the drift net planting network that adapts to the ocean currents has minimal resistance to ocean current changes and waves, etc. The material of the nets and ropes can be chosen freely so that its weight approximates the weight of water, so the construction will be streamlined.
[0005]
[Action]
Most of the algae are first-year students, and kombu and arame are second- to third-year students. The only giant kelp system has a lifespan of about 10 years, but in both cases, when laying the planting net, plant the spores in the planting net, select the maximum growth and mow, leave some percentage for regeneration and the following year Repeat this.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a bird's-eye view of a one-piece planting net. The
It can be considered that the alignment fin 8 serves as the tail of the airplane. The buoy was filled with expanded polystyrene so that buoyancy would not be lost even if small breakage or cracking occurred due to waves or the like, and a four-year test was conducted with two samples. Put one weight in the water. One piece was lifted as it was, and the flying height was measured every 3 months by weight. However, the test piece that floated for a whole period of 36mm was lifted by 36mm. The weighted and sinking test piece floated 34 mm.
FIG. 2 is a schematic plan view of a planting net. When harvesting, spore remnants are left for growth next year.
[0007]
【The invention's effect】
For example, a seaweed energy algae is produced in the Sea of Japan, and this is harvested and methane-fermented on a treatment vessel (base ship approximately 400,000 to 500,000 tons) on the ocean as it is. Transport to energy.
In this case, there is no yield statistics for Honda Wallara, which is prolific in the Sea of Japan, but there are statistics for Iida Bay and Kominato, so if you use this (A) the average Honda Walla yield (dry weight) for Kominato and Iida Bay. 92kg / m 2 ……………… ※ 1
(B) Energy per kg of dry weight 4,500 kcal ······ * 2
(C) Power generation 1 kw / h energy 2,450 kcal ... Work constant (D) 1 million full power generation of 1 million kw per year 100 x 24 x 365 x 0.73 = 6,394,800,000 kw / year (Actual power generation rate)
(A) Planting area required for 1 million kW power generation
However, according to the actual operation of Gobo, Osaka Nanko, it is about 700 km 2 and can cover 1 million kW / year of electricity in Kochi Prefecture. If it is used worldwide, it will solve energy problems and remove pollution. Without applying a device,
* 1, * 2 ... Feasibility study on biomass production and use [Brief description of drawings]
[Fig. 1] Bird's eye view of one piece of drift net type algae planting net [Fig. 2] Schematic diagram of plane arrangement of drift net type algae planting net [Fig. 3] Wakame longline training facility and its arrangement example Iwate Prefecture [Fig. 4] Macombu The main farming facility for forcing culture in Hakodate area [Fig.5] Plan of macomb farming facility [Fig.6] About 200 nautical miles of Japan Sea, summer current chart (Maizuru Marine Meteorological Observatory)
[Fig. 7] Various types of Styrofoam-filled buoys [Fig. 8] Classification of dedicated wings for arranging planting nets by ocean current [Fig. 9] Anchors for utilizing industrial waste, etc. [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1
19 Fish Fishing-like Foam Resin Filled
22
R resistance
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34651098A JP4032082B2 (en) | 1998-10-28 | 1998-10-28 | Drift net algae planting net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34651098A JP4032082B2 (en) | 1998-10-28 | 1998-10-28 | Drift net algae planting net |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000125694A JP2000125694A (en) | 2000-05-09 |
| JP4032082B2 true JP4032082B2 (en) | 2008-01-16 |
Family
ID=18383921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34651098A Expired - Fee Related JP4032082B2 (en) | 1998-10-28 | 1998-10-28 | Drift net algae planting net |
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| Country | Link |
|---|---|
| JP (1) | JP4032082B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004010652B4 (en) * | 2004-02-29 | 2006-07-27 | Stiftung Alfred-Wegener-Institut Für Polar- Und Meeresforschung | Carrier device for the culture of macroorganisms in marine waters |
| US7836633B2 (en) * | 2008-01-31 | 2010-11-23 | Brian And Cynthia Wilcox Trust | Method and apparatus for robotic ocean farming for food and energy |
| KR101347302B1 (en) | 2012-11-12 | 2014-01-10 | 한국수산자원관리공단 | Fixing apparatus for a rope of seaweed farm |
| CN103609494B (en) * | 2013-11-25 | 2015-04-29 | 中国水产科学研究院东海水产研究所 | Connection method for seashore and netting gear net |
| CN103598126B (en) * | 2013-11-25 | 2015-01-14 | 中国水产科学研究院东海水产研究所 | A method for assembling breeding nets and clothes between coasts |
| CN113331144B (en) * | 2021-06-15 | 2022-12-23 | 中国水产科学研究院南海水产研究所 | A rapid sampling net for disaster-causing organisms |
| CN114009386B (en) * | 2021-11-26 | 2022-11-08 | 青岛鲁普耐特绳网研究院有限公司 | Intelligent anchoring system and intelligent anchoring method for deep-sea ocean farming net cage |
| KR102583471B1 (en) * | 2022-01-26 | 2023-09-27 | 한국항공우주산업 주식회사 | an electromagnetic wave absorptive net and a manufacturing method of the electromagnetic wave absorptive net |
| CN115250967B (en) * | 2022-08-01 | 2023-09-01 | 中国水产科学研究院黄海水产研究所 | Breeding platform based on function transfer type of abandoned ocean oil gas platform |
-
1998
- 1998-10-28 JP JP34651098A patent/JP4032082B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| JP2000125694A (en) | 2000-05-09 |
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