JP2004136243A - Water cleaning method - Google Patents

Water cleaning method Download PDF

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Publication number
JP2004136243A
JP2004136243A JP2002305627A JP2002305627A JP2004136243A JP 2004136243 A JP2004136243 A JP 2004136243A JP 2002305627 A JP2002305627 A JP 2002305627A JP 2002305627 A JP2002305627 A JP 2002305627A JP 2004136243 A JP2004136243 A JP 2004136243A
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water
dimensional void
void structure
dimensional
purification method
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JP4620323B2 (en
Inventor
Taichi Inada
稲　田　太　一
Munehiro Miyake
三　宅　宗　宏
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GEO FRONT KK
POROUS JAPAN KK
Taisei Kogyo KK
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GEO FRONT KK
POROUS JAPAN KK
Taisei Kogyo KK
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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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Biological Treatment Of Waste Water (AREA)
  • Treatment Of Biological Wastes In General (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water cleaning unit which is easily disposed, can be constructed in a short period, is inexpensive and has a high water cleaning action. <P>SOLUTION: Three-dimensional structural bodies with vacancies are formed by intertwining resinous linear materials and stacking the resultant structural bodies into a predetermined shape. The plurality of three-dimensional structural bodies are disposed in water, and a contaminating substance cleaning agent essentially comprising an aerobic micro-organism group is stored in part or all of the three-dimensional structural bodies disposed in the water. Oxygen may be supplied to the structural bodies. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、河川・湖沼・海等の水質浄化方法に関し、特に、好気性微生物群（好気性バクテリア）の活動（分解能力）を利用することによって、汚染物質を分解して水質を浄化する水質浄化方法に関する。
【０００２】
【従来の技術】
従来の水質浄化方法としては、水底の土砂（汚泥物、ヘドロ等）をさらう浚渫が多く行われている。この浚渫は、浚渫設備が大変であるし、水底からさらったヘドロ等の撤去・運搬に費用もかさむと共に、ヘドロ等の廃棄に関し公害問題もあり、捨て場にも難儀する課題がある。
そこで、最近では微生物を利用した水質浄化方法が提案されている。この水質浄化方法は、水中にれき（石）を積み上げ、このれきの間に水を通し、れきに定着した微生物で汚れを分解・浄化する方法（例えば、特許文献１参照）が多い。
【０００３】
【特許文献１】
特許第２８２２３７１号公報（段落番号０００５及び０００６、図４）
【０００４】
【発明が解決しようとする課題】
しかしながら、従来の微生物を利用した水質浄化方法では、微生物の発生・定着は、れきに自然に定着するのをまたなければならないので浄化作用がはじまるまでに期間が必要となるし、また、れきを用意するのも運搬、費用等を考慮すると大変であるし、さらに、れき（石）の積み上げ作業も大変であり、工期も長くかかる課題がある。
この発明は、このような課題に鑑み提案されたものであり、その目的は、設置が容易で短期間にでき、費用も安価であると共に水質浄化作用の高い水質浄化方法の提供にある。
【０００５】
【課題を解決するための手段】
前記課題を解決するため、この発明の水質浄化方法は、樹脂線状体を絡み合せて所定形状に積層して立体空隙構造体を形成し、該立体空隙構造体の複数を水中に設置すると共に、該水中に設置する一部または全部の立体空隙構造体に好気性微生物群を主成分とする汚染物質浄化剤が収容されていることを特徴とする。
これにより立体空隙構造体は、樹脂線状体を絡み合せて所定形状に積層して形成するので安価に容易に製造でき、用意するのも容易であるし、軽量なので運搬および設置も容易である。また、水中に設置した一部または全部の立体空隙構造体には、好気性微生物群を主成分とする汚染物質浄化剤が収容されているので、この汚染物質浄化剤が水中に溶解し、その微生物群は立体空隙構造体、底およびその周辺に定着・増殖する。従って、浄化作用は早期に開始されるし、好気性微生物群は、絡み合っている全ての樹脂線状体の表面に定着・増殖しているので、水との接触面積も広く、かつ、水底およびその周辺に定着・増殖している好気性微生物群と相俟って、効率よく浄化作用が行われる。しかも水底（川底、湖底、海底など）に定着・増殖した好気性微生物群は、水底に堆積した汚泥物やヘドロ等も分解し浄化するので、水質浄化は一層促進される。さらに、ヘドロの処理にも役立つ。
【０００６】
また、この発明の水質浄化方法は、樹脂線状体を絡み合せて所定形状に積層して立体空隙構造体を形成し、該立体空隙構造体の複数を水中に設置し、該水中に設置する一部または全部の立体空隙構造体に好気性微生物群を主成分とする汚染物質浄化剤が収容されると共に、少なくとも水中に設置した立体空隙構造体の近傍に酸素を供給することを特徴とする。
これにより前記作用効果を奏すると共に、この発明では酸素を供給することができるので曝気して水中の汚染ガスを分離して大気に放出して水質浄化が図れると共に、水中での容存酸素量を確保し、微生物群の活動を活発化することができる。
【０００７】
また、この発明の水質浄化方法は、前記立体空隙構造体を、河川、湖沼および海等における排水、支流または本流が流入する流入口近傍の水中に設置することを特徴とする。
これにより汚染した水が流入した直後に浄化することができ、汚染水が河川、湖沼および海等の広範囲に広がるのを防止できる。
【０００８】
また、この発明の水質浄化方法は、前記立体空隙構造体には、重りが固着されていることを特徴とする。
これにより立体空隙構造体は重りで水中に沈下し底に固定でき、他の固定手段が不要となる。
【０００９】
さらに、この発明の水質浄化方法は、前記立体空隙構造体を樹脂線状体を絡み合せて積層し、中空部を有する円柱状に形成したことを特徴とする。
これにより取り扱いが容易となるし、水中への設置も容易となり、また、中空部には汚染物質浄化剤を収容することができる。
【００１０】
【発明の実施の形態】
以下、この発明を図面に示した実施の形態により詳細に説明する。図１はこの発明の第１の実施の形態を示す説明斜視図である。
この図１に示す実施の形態は、好気性微生物群を主成分とする汚染物質浄化剤を収容した立体空隙構造体１の複数を、河川Ｒの水中に設置し、この立体空隙構造体１に収容した汚染物質浄化剤及びこの汚染物質浄化剤により立体空隙構造体１、川底およびその周辺等に定着・繁殖した微生物により汚染物質を分解し水質を浄化する方法にある。
【００１１】
立体空隙構造体１は、樹脂線状体を絡み合せて無数の互に連通する空隙が存在する所定形状に積層して形成したものであり、透水性が高いものである。
図２は立体空隙構造体の実施の形態を示す斜視図、図３は立体空隙構造体の拡大部分斜視図である。この立体空隙構造体１は、同図に示すように樹脂線状体２を絡み合せて中空部３を有する円柱状に積層して形成され、無数の互に連通する空隙が存在し、透水性（通水性）となっている。
【００１２】
汚染物質浄化剤は、好気性微生物群（好気性バクテリア）を主成分とするものであり、汚染物質を分解し無害化するものである。これは粉体などの固形状でも、練状でも、液状でもよい。一例として好気性バクテリアを培養し、粉体としたもので、イーエーイーテック株式会社製の「ＳＵＰＥＲ−Ｋ」（商品名）を例示することができる。
この汚染物質浄化剤は、前記立体空隙構造体１の中空部３に収容する。例えば、粉体の汚染物質浄化剤を透水性の袋に容入し、これを立体空隙構造体１の中空部３に収容する。
【００１３】
立体空隙構造体１の複数は、図１に示すように河川Ｒの水中に設置され、この一部または全部の立体空隙構造体１に前記汚染物質浄化剤が収容される。本例では川底に杭４が打ち込まれ、立体空隙構造体１の複数がまとめられて該杭４に線条体５で固定されて設置され、これが複数群設けられている。この各群には、少なくとも１本の汚染物質浄化剤を収容した立体空隙構造体１が存在するのが好ましい。
この立体空隙構造体１の深さ方向の設置位置としては、水面、中間、底部およびこれらの併用のいずれでもよい。この深さ方向の設置位置あるいは立体空隙構造体１の設置する数、設置群の位置、その間隔等は、河川の幅、水深、底に堆積した汚泥やヘドロの量、その汚染度および水質の汚染度、等を考慮して決定する。
特に、河川、湖沼、海等に排水や支流が流入している場合には、この流入口の近傍に立体空隙構造体１を設置すると、流入する汚染水が拡大する前に浄化できるので好ましい。
なお、汚染物質浄化剤は、水中に設置する立体空隙構造体群の全てに収容しても、その一部に収容してもよく、これは任意である。
【００１４】
しかして、この実施の形態によれば、水中に設置した立体空隙構造体１の一部または全部には、中空部３に汚染物質浄化剤が収容されているので、この汚染物質浄化剤は水中に溶解し、その汚染物質浄化剤の主成分である好気性微生物群は、立体空隙構造体１、川底およびその周辺に定着・増殖する。水中に設置した立体空隙構造体１は、樹脂線状体２を絡み合せて中空部３を有する円柱状に積層して形成されており、無数の互に連通する空隙が存在し、透水性（通水性）であるので、河川Ｒの水は、設置した立体空隙構造体１中を通過して流れることになる。従って、汚染された河川Ｒの水は、溶解した汚染物質浄化剤、および立体空隙構造体１、川底、その周辺に定着・増殖した好気性微生物群に接触し、汚染物質が付着、補足されて分解され浄化される。この時、立体空隙構造体１は、樹脂線状体２を絡み合せて中空部３を有する円柱状に積層してなるので、好気性微生物群は、絡み合っている全ての樹脂線状体の表面に定着・増殖しているので、水との接触面積が広くなり効率的に浄化作用が行われる。
また、川底（湖底、海底も含む）に定着・増殖した好気性微生物群は川底に堆積した汚泥やヘドロも分解し浄化するので、これにより水質も浄化される。
【００１５】
なお、この実施の形態では、河川Ｒの浄化で説明しているが、これは湖沼、湾内等の浄化にも適用可能であり、この発明ではこれらの全てを包含する。
【００１６】
図４はこの発明の第２の実施の形態を示す説明斜視図である。本例は樹脂線状体２を絡み合せて中空部３を有する円柱状に積層した立体空隙構造体１を、水中に横に寝かせて設置したものと、垂直方向に立設して設置したものとを併用した場合であり、他は前記実施の形態と同様である。
【００１７】
図５はこの発明の第３の実施の形態を示す説明斜視図である。本例は樹脂線状体２を絡み合せて中空部３を有する円柱状に積層した立体空隙構造体１を、水中に垂直方向に立設して設置した場合であり、他は前記実施の形態と同様である。
これら第２の実施の形態および第３の実施の形態においても、前記第１の実施の形態と同様な作用、効果を奏する。
【００１８】
この水中に垂直方向に立設して設置する立体空隙構造体１としては、図６および図７に示すように樹脂線状体２を絡み合せて中空部３を有する円柱状に積層した立体空隙構造体１の下端に重り６を固着したものを使用すると、重り６で水中に沈下し底に固定できるので、他の固定手段が不要となり有効である。図６に示す重り６は円筒状であり、図７に示す重り６は円錐状であるが、この重りの形状は特に限定されない。また、重り６を設ける立体空隙構造体１の形状も、本例のような中空部３を有する円柱状に限定されるものではない。
【００１９】
図８はこの発明の第４の実施の形態を示す説明斜視図である。本例は水中にエアレーター（曝気装置）７を設置し、曝気を併用する点に特徴がある。すなわち、複数の立体空隙構造体１を水中に横に寝かせて設置し、この設置群の適所にエアレーター（曝気装置）７を設けたもので、他は前記実施の形態と同様である。このエアレーター７は、給気装置を内蔵したものでもよいし、図８に示すようにコンプレッサー８を設置し、これから給気するようにしてもよい。
この第４の実施の形態によれば、エアレーター７により曝気したり、水中に給気することができる。従って、前記第１の実施の形態と同様な効果に加えて、曝気により汚染ガスを分離して大気に放出できるし、水中の溶存酸素が不足しても酸素（空気）を供給し、微生物の活動を活発化することができるので、水質浄化の効果は一層向上する。
【００２０】
水中へのエアレーター７の設置位置は任意であるが、設置した立体空隙構造体１群の近傍か、図９に示すような設置した立体空隙構造体１の下方位置が、立体空隙構造体１に収容した汚染物質浄化剤の周辺に酸素を供給でき、微生物の活動を活発化できるので好ましい。また、エアレーター７は、継続的な作動でも、適当な間隔の作動でも、あるいは必要とするときだけの作動でもよく、水質の汚染度に応じて決定すればよい。
【００２１】
図１０はこの発明の第５の実施の形態を示す説明斜視図である。本例は下端に重り６を有する立体空隙構造体１の複数を水中に垂直方向に立設し、この群立する適所にエアレーター７を設置した場合であり、他は前記実施の形態と同様である。この第５の実施の形態においても、前記第４の実施の形態と同様な効果を奏する。
【００２２】
なお、前記実施の形態は、この発明を制限するものではなく、この発明は要旨を逸脱しない範囲で種々の変形が許容される。例えば、汚染物質浄化剤は、水中に設置した全ての立体空隙構造体１に収容する必要はなく、任意のものでもよい。汚染物質浄化剤を収容しない立体空隙構造体１にも、汚染物質浄化剤を収容した立体空隙構造体１の汚染物質浄化剤が溶解して定着し増殖するからである。また、この発明は水質浄化方法であるが、底に堆積した汚泥やヘドロを分解・浄化し、水質浄化する場合も包含するものである。また、立体空隙構造体１の形状も前記実施の形態に制限されるものではない。例えば、球形、円錐形および立方体等の形状を例示できる。
【００２３】
【発明の効果】
以上詳細に説明した通り、この発明の水質浄化方法によれば次のような効果を奏する。
（１）水中に設置した一部または全部の立体空隙構造体には、好気性微生物群を主成分とする汚染物質浄化剤が収容されているので、この汚染物質浄化剤が水中に溶解し、その微生物群は立体空隙構造体、底およびその周辺に定着・増殖する。従って、浄化作用は早期に開始されるし、好気性微生物群は、絡み合っている全ての樹脂線状体の表面に定着・増殖しているので、水との接触面積も広く、かつ、水底およびその周辺に定着・増殖している好気性微生物群と相俟って、効率よく浄化作用が行われる。しかも水底（川底、湖底、海底など）に定着・増殖した好気性微生物群は、水底に堆積した汚泥物やヘドロ等も分解し浄化するので、水質浄化は一層促進される。さらに、ヘドロの処理にも役立つ。
【００２４】
（２）立体空隙構造体は、樹脂線状体を絡み合せて所定形状に積層して形成するので安価に容易に製造でき、用意するのも容易であるし、軽量なので運搬および設置も容易である。
【００２５】
（３）この発明では酸素を供給して曝気したり、溶存酸素量を確保できるので、曝気して水中の汚染ガスを分離して大気に放出して水質浄化が図れると共に、水中での容存酸素量を確保し微生物群の活動を活発化することができる。従って、微生物群の活動との相乗効果で効率のよい浄化ができる。
【００２６】
（４）また、立体空隙構造体が重りを具備すると、重りで水中に沈下し底に固定できるので、他の固定手段が不要となる。
【図面の簡単な説明】
【図１】この発明の第１の実施の形態を示す説明斜視図である。
【図２】立体空隙構造体の実施の形態を示す斜視図である。
【図３】立体空隙構造体の拡大部分斜視図である。
【図４】この発明の第２の実施の形態を示す説明斜視図である。
【図５】この発明の第３の実施の形態を示す説明断面図である。
【図６】立体空隙構造体の他の実施の形態を示す斜視図である。
【図７】図６に示す立体空隙構造体の変形例を示す斜視図である。
【図８】この発明の第４の実施の形態を示す説明斜視図である。
【図９】第４の実施の形態の変形例を示す説明断面図である。
【図１０】この発明の第５の実施の形態を示す説明断面図である。
【符号の説明】
１　立体空隙構造体
２　樹脂線状体
３　中空部
４　杭
５　線条体
６　重り
７　エアレーター
８　ヘドロ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for purifying water quality of rivers, lakes, marshes, seas, etc., and in particular, water quality that purifies water quality by decomposing pollutants by utilizing the activity (decomposition ability) of aerobic microorganisms (aerobic bacteria). It relates to a purification method.
[0002]
[Prior art]
As a conventional water purification method, dredging for exposing soil (sludge, sludge, etc.) at the bottom of the water is often performed. In this dredging, the dredging equipment is difficult, the cost of removing and transporting sludge and the like from the bottom of the water is increased, and there is also a problem of pollution regarding disposal of the sludge and there is a problem that the dump site is difficult.
Therefore, a water purification method using microorganisms has recently been proposed. In this water purification method, there are many methods of stacking debris (stones) in water, passing water between the debris, and decomposing and purifying dirt with microorganisms fixed on the debris (for example, see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent No. 2822371 (paragraphs 0005 and 0006, FIG. 4)
[0004]
[Problems to be solved by the invention]
However, in the conventional water purification method using microorganisms, the generation and settlement of microorganisms has to straddle naturally to settle on the debris, so a period is required before the purification action starts, and It is difficult to prepare it in consideration of transportation, cost, etc. In addition, the work of stacking debris (stone) is also difficult, and there is a problem that the construction period is long.
The present invention has been proposed in view of such problems, and an object of the present invention is to provide a water purification method which is easy to install, can be performed in a short time, is inexpensive, and has a high water purification action.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the water purification method of the present invention is to form a three-dimensional void structure by intertwining resin linear bodies and laminating them in a predetermined shape, and installing a plurality of the three-dimensional void structures in water. A part or all of the three-dimensional void structure installed in the water contains a pollutant purifying agent mainly composed of aerobic microorganisms.
Thus, the three-dimensional void structure can be easily manufactured at low cost because it is formed by intertwining the resin linear bodies and laminating them in a predetermined shape, and is easy to prepare, and because it is lightweight, it is easy to transport and install. . In addition, since a part or all of the three-dimensional void structure installed in water contains a pollutant purifying agent mainly composed of aerobic microorganisms, the contaminant purifying agent dissolves in water, and The microorganisms colonize and grow on the three-dimensional void structure, the bottom, and the periphery thereof. Therefore, the purification action is started early, and the aerobic microorganisms colonize and proliferate on the surfaces of all the entangled resin linear bodies, so that the contact area with water is large, and the water bottom and The purification effect is efficiently performed in combination with the aerobic microorganisms colonized and proliferating therearound. In addition, the aerobic microorganisms that have settled and proliferated on the bottom of the water (river, lake, sea bottom, etc.) also decompose and purify sludge and sludge deposited on the water bottom, which further promotes water purification. It is also useful for sludge disposal.
[0006]
Further, in the water purification method of the present invention, the resin linear bodies are intertwined and laminated in a predetermined shape to form a three-dimensional void structure, a plurality of the three-dimensional void structures are installed in water, and the three-dimensional void structures are installed in the water. A contaminant purifying agent mainly composed of aerobic microorganisms is contained in some or all of the three-dimensional void structure, and oxygen is supplied to at least the vicinity of the three-dimensional void structure installed in water. .
In addition to providing the above-mentioned effects, the present invention can supply oxygen, so that aeration can be performed to separate pollutant gas in the water and release it to the atmosphere, thereby purifying the water quality and reducing the amount of oxygen contained in the water. Can secure and activate the activity of the microbial community.
[0007]
Further, the water purification method of the present invention is characterized in that the three-dimensional void structure is placed in water near a water inlet, into which a drain, a tributary, or a main stream flows in a river, a lake, a sea, or the like.
As a result, the contaminated water can be purified immediately after flowing, and the contaminated water can be prevented from spreading over a wide area such as a river, a lake, or the sea.
[0008]
Further, the water purification method of the present invention is characterized in that a weight is fixed to the three-dimensional void structure.
As a result, the three-dimensional void structure can sink to the water and be fixed to the bottom with a weight, and other fixing means are not required.
[0009]
Further, the water purification method of the present invention is characterized in that the three-dimensional void structure is laminated and entangled with a resin linear body to form a column having a hollow portion.
This facilitates handling and installation in water, and the hollow part can contain a pollutant purifying agent.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. FIG. 1 is an explanatory perspective view showing a first embodiment of the present invention.
In the embodiment shown in FIG. 1, a plurality of three-dimensional void structures 1 containing a pollutant purifying agent mainly composed of aerobic microorganisms are installed in the water of a river R, and the three-dimensional void structures 1 There is a method of purifying water by decomposing pollutants by microorganisms that have been settled and propagated on the three-dimensional void structure 1, the riverbed and its surroundings, etc. by using the stored contaminant purifying agent and the contaminant purifying agent.
[0011]
The three-dimensional void structure 1 is formed by intertwining resin linear bodies and laminating them in a predetermined shape having an infinite number of voids communicating with each other, and has high water permeability.
FIG. 2 is a perspective view showing an embodiment of the three-dimensional void structure, and FIG. 3 is an enlarged partial perspective view of the three-dimensional void structure. The three-dimensional void structure 1 is formed by intertwining resin linear bodies 2 and stacking them in a columnar shape having a hollow portion 3 as shown in FIG. (Water-permeable).
[0012]
The pollutant purifying agent is mainly composed of aerobic microorganisms (aerobic bacteria), and decomposes pollutants to make them harmless. This may be solid such as powder, kneaded, or liquid. As an example, "SUPER-K" (trade name) manufactured by AE Tech Co., Ltd., which is obtained by culturing aerobic bacteria into powder, can be exemplified.
This contaminant purifying agent is contained in the hollow part 3 of the three-dimensional void structure 1. For example, a powdery contaminant purifying agent is placed in a water-permeable bag, and is stored in the hollow portion 3 of the three-dimensional void structure 1.
[0013]
A plurality of the three-dimensional void structures 1 are installed in the water of the river R as shown in FIG. 1, and the contaminant purifying agent is contained in some or all of the three-dimensional void structures 1. In this example, the pile 4 is driven into the riverbed, a plurality of the three-dimensional void structures 1 are put together, fixed to the pile 4 with the striated body 5, and installed, and a plurality of groups are provided. Preferably, each group has a three-dimensional void structure 1 containing at least one contaminant purifying agent.
The installation position of the three-dimensional void structure 1 in the depth direction may be any of a water surface, a middle surface, a bottom portion, and a combination thereof. The installation position in the depth direction or the number of the three-dimensional void structures 1 to be installed, the positions of the installation groups, their intervals, etc. are determined by the width of the river, the water depth, the amount of sludge and sludge deposited on the bottom, the degree of pollution and the quality of water. Determined in consideration of the degree of contamination, etc.
In particular, when drainage or tributaries are flowing into rivers, lakes, marshes, the sea, or the like, it is preferable to install the three-dimensional void structure 1 in the vicinity of the inflow port because the inflowing contaminated water can be purified before expanding.
The contaminant purifying agent may be contained in all or a part of the three-dimensional void structure group installed in water, which is optional.
[0014]
According to this embodiment, since the contaminant purifying agent is contained in the hollow portion 3 in a part or the whole of the three-dimensional void structure 1 installed in water, the contaminant purifying agent is in water. And the aerobic microorganisms, which are the main components of the pollutant purifying agent, settle and proliferate on the three-dimensional void structure 1, the riverbed and its surroundings. The three-dimensional void structure 1 installed in water is formed by intertwining the resin linear bodies 2 and stacking them in a columnar shape having a hollow portion 3, and there are countless voids communicating with each other, and water permeability ( Therefore, the water of the river R flows through the installed three-dimensional void structure 1. Therefore, the water of the contaminated river R comes into contact with the dissolved pollutant purifying agent and the aerobic microorganisms that have settled and proliferated on the three-dimensional void structure 1, the riverbed and its surroundings, and the contaminants adhered and supplemented. Decomposed and purified. At this time, the three-dimensional void structure 1 is formed by stacking the resin linear bodies 2 in a columnar shape having the hollow portion 3 by intertwining the resin linear bodies 2. , The area of contact with water is increased and the purification action is performed efficiently.
In addition, aerobic microorganisms that have settled and proliferated on the riverbed (including the lakebed and the seabed) also decompose and purify sludge and sludge deposited on the riverbed, thereby purifying the water quality.
[0015]
In this embodiment, the description is made for the purification of the river R. However, the present invention is also applicable to the purification of lakes, marshes, bays, and the like, and the present invention covers all of them.
[0016]
FIG. 4 is an explanatory perspective view showing a second embodiment of the present invention. In this example, a three-dimensional void structure 1 in which resin linear bodies 2 are intertwined and stacked in a columnar shape having a hollow portion 3 is laid horizontally in water and vertically erected. Are the same as those of the above-described embodiment.
[0017]
FIG. 5 is an explanatory perspective view showing a third embodiment of the present invention. This example is a case where a three-dimensional void structure 1 in which a resin linear body 2 is intertwined and laminated in a columnar shape having a hollow portion 3 is vertically installed in water and installed. Is the same as
In the second embodiment and the third embodiment, the same operation and effect as those of the first embodiment can be obtained.
[0018]
As the three-dimensional void structure 1 that is vertically installed in water and installed, as shown in FIGS. 6 and 7, a three-dimensional void in which a resin linear body 2 is entangled and laminated in a columnar shape having a hollow portion 3 is provided. If a structure in which the weight 6 is fixed to the lower end of the structure 1 is used, the structure can be submerged in the water by the weight 6 and fixed to the bottom, so that other fixing means is not required and is effective. The weight 6 shown in FIG. 6 is cylindrical, and the weight 6 shown in FIG. 7 is conical, but the shape of the weight is not particularly limited. Further, the shape of the three-dimensional void structure 1 provided with the weight 6 is not limited to the columnar shape having the hollow portion 3 as in this example.
[0019]
FIG. 8 is an explanatory perspective view showing a fourth embodiment of the present invention. This embodiment is characterized in that an aerator (aeration device) 7 is installed in water and aeration is used in combination. That is, a plurality of three-dimensional void structures 1 are set horizontally lying in water, and an aerator (aeration device) 7 is provided at an appropriate position of the installation group. The other configuration is the same as that of the above-described embodiment. The aerator 7 may have a built-in air supply device, or may be provided with a compressor 8 as shown in FIG.
According to the fourth embodiment, aeration by the aerator 7 and air supply into the water can be performed. Therefore, in addition to the same effects as those of the first embodiment, the pollutant gas can be separated by aeration and released to the atmosphere, and even if the dissolved oxygen in the water is insufficient, oxygen (air) is supplied, and Since the activity can be activated, the effect of water purification is further improved.
[0020]
The installation position of the aerator 7 in the water is arbitrary, but the vicinity of the installed three-dimensional void structure 1 group or the position below the installed three-dimensional void structure 1 as shown in FIG. This is preferable because oxygen can be supplied to the vicinity of the contaminant purifying agent stored in the container and the activity of microorganisms can be increased. Further, the aerator 7 may be operated continuously, operated at appropriate intervals, or operated only when necessary, and may be determined according to the degree of contamination of water quality.
[0021]
FIG. 10 is an explanatory perspective view showing a fifth embodiment of the present invention. This example is a case in which a plurality of three-dimensional void structures 1 having a weight 6 at the lower end are erected vertically in water, and an aerator 7 is installed at an appropriate place where the clusters are arranged. It is. The fifth embodiment has the same advantages as the fourth embodiment.
[0022]
The above embodiment does not limit the present invention, and the present invention allows various modifications without departing from the scope of the invention. For example, the pollutant purifying agent does not need to be contained in all the three-dimensional void structures 1 installed in water, and may be any. This is because the contaminant purifying agent of the three-dimensional void structure 1 containing the contaminant purifying agent is dissolved, fixed, and multiplied even in the three-dimensional void structure 1 containing no contaminant purifying agent. Further, the present invention is a method for purifying water, and also includes a case where water quality is purified by decomposing and purifying sludge and sludge deposited on the bottom. Further, the shape of the three-dimensional void structure 1 is not limited to the above embodiment. For example, shapes such as a sphere, a cone, and a cube can be exemplified.
[0023]
【The invention's effect】
As described in detail above, the water purification method of the present invention has the following effects.
(1) Since a part or all of the three-dimensional void structure installed in water contains a contaminant purifying agent mainly composed of aerobic microorganisms, the contaminant purifying agent dissolves in water, The microorganisms colonize and multiply on the three-dimensional void structure, the bottom, and the periphery thereof. Therefore, the purification action is started early, and the aerobic microorganisms colonize and proliferate on the surfaces of all the entangled resin linear bodies, so that the contact area with water is large, and the water bottom and The purification effect is efficiently performed in combination with the aerobic microorganisms colonized and proliferating therearound. In addition, the aerobic microorganisms that have settled and proliferated on the bottom of the water (river, lake, sea bottom, etc.) also decompose and purify sludge and sludge deposited on the water bottom, which further promotes water purification. It is also useful for sludge disposal.
[0024]
(2) The three-dimensional void structure is formed by intertwining resin linear bodies and laminating them in a predetermined shape, so that they can be easily manufactured at a low cost, are easy to prepare, and are lightweight, so that they can be easily transported and installed. is there.
[0025]
(3) According to the present invention, oxygen can be supplied for aeration or dissolved oxygen can be secured, so that aeration can be performed to separate pollutant gas in water and release it to the atmosphere, thereby purifying water quality and keeping water in water. The amount of oxygen can be secured and the activity of the microorganisms can be activated. Therefore, efficient purification can be performed by a synergistic effect with the activity of the microorganism group.
[0026]
(4) Further, if the three-dimensional void structure has a weight, it can sink into the water and be fixed to the bottom by the weight, so that other fixing means is not required.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view showing a first embodiment of the present invention.
FIG. 2 is a perspective view showing an embodiment of a three-dimensional void structure.
FIG. 3 is an enlarged partial perspective view of a three-dimensional void structure.
FIG. 4 is an explanatory perspective view showing a second embodiment of the present invention.
FIG. 5 is an explanatory sectional view showing a third embodiment of the present invention.
FIG. 6 is a perspective view showing another embodiment of the three-dimensional void structure.
FIG. 7 is a perspective view showing a modified example of the three-dimensional void structure shown in FIG.
FIG. 8 is an explanatory perspective view showing a fourth embodiment of the present invention.
FIG. 9 is an explanatory sectional view showing a modification of the fourth embodiment.
FIG. 10 is an explanatory sectional view showing a fifth embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Three-dimensional void structure 2 Resin linear body 3 Hollow part 4 Pile 5 Striatal body 6 Weight 7 Aerator 8 Sludge

Claims (5)

樹脂線状体を絡み合せて所定形状に積層して立体空隙構造体を形成し、該立体空隙構造体の複数を水中に設置すると共に、該水中に設置する一部または全部の立体空隙構造体に好気性微生物群を主成分とする汚染物質浄化剤が収容されていることを特徴とする水質浄化方法。The resin linear bodies are intertwined and laminated in a predetermined shape to form a three-dimensional void structure, a plurality of the three-dimensional void structures are installed in water, and a part or all of the three-dimensional void structures installed in the water A water purification method characterized by containing therein a contaminant purifying agent containing aerobic microorganisms as a main component. 樹脂線状体を絡み合せて所定形状に積層して立体空隙構造体を形成し、該立体空隙構造体の複数を水中に設置し、該水中に設置する一部または全部の立体空隙構造体に好気性微生物群を主成分とする汚染物質浄化剤が収容されると共に、少なくとも水中に設置した立体空隙構造体の近傍に酸素を供給することを特徴とする水質浄化方法。The resin linear bodies are intertwined and laminated in a predetermined shape to form a three-dimensional void structure, a plurality of the three-dimensional void structures are installed in water, and a part or all of the three-dimensional void structures installed in the water are formed. A water purification method characterized by containing a pollutant purifying agent mainly composed of aerobic microorganisms and supplying oxygen to at least a vicinity of a three-dimensional void structure installed in water. 前記立体空隙構造体は、河川、湖沼および海等における排水、支流または本流が流入する流入口近傍の水中に設置することを特徴とする請求項１または２記載の水質浄化方法。The water purification method according to claim 1, wherein the three-dimensional void structure is installed in water near a water inlet, into which a drain, a tributary, or a main stream flows in a river, a lake, a sea, or the like. 前記立体空隙構造体には、重りが固着されていることを特徴とする請求項１乃至３のいずれかに記載の水質浄化方法。The water purification method according to any one of claims 1 to 3, wherein a weight is fixed to the three-dimensional void structure. 前記立体空隙構造体は、樹脂線状体を絡み合せて積層し中空部を有する円柱状に形成したことを特徴とする請求項１乃至４のいずれかに記載の水質浄化方法。The water purification method according to any one of claims 1 to 4, wherein the three-dimensional void structure is formed by entanglement and laminating resin linear bodies to form a column having a hollow portion.
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