JPH0647363A - Water barrier sheet for landfilling treatment with waste, and landfilling treatment with waste using the same - Google Patents
Water barrier sheet for landfilling treatment with waste, and landfilling treatment with waste using the sameInfo
- Publication number
- JPH0647363A JPH0647363A JP21636291A JP21636291A JPH0647363A JP H0647363 A JPH0647363 A JP H0647363A JP 21636291 A JP21636291 A JP 21636291A JP 21636291 A JP21636291 A JP 21636291A JP H0647363 A JPH0647363 A JP H0647363A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- waste
- porous film
- water barrier
- water
- 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.)
- Granted
Links
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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
Landscapes
- Processing Of Solid Wastes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、廃棄物の埋立て処理用
遮水シート及びそれを用いた廃棄物の埋立て処理方法に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-blocking sheet for waste landfill treatment and a waste landfill treatment method using the same.
【０００２】[0002]
【従来技術及びその問題点】廃棄物の埋立処理方法とし
ては、廃棄物層の厚さ約３ｍ毎に５０ｃｍ層の覆土によ
り盛土を行うサンドイッチ工法が採用されている。しか
し、このような従来の方法では、廃棄物層に直接覆土に
より盛土を行うため、降雨による雨水が廃棄物層に浸透
し、嫌気性分解によるガス発生を促し、廃棄物から有害
成分が雨水に溶け出してしまう。その結果、廃棄物埋立
中及び埋立後に、発火及び悪臭の発生や土壌、地下水汚
染、水質汚濁といった環境問題を生じ、埋立が完了して
も廃計物処理場の跡地利用が数年〜数十分にわたってで
きないという問題がある。2. Description of the Related Art As a landfill treatment method for waste, a sandwich construction method is used in which a 50 cm layer of soil is filled every 3 m of the waste layer for embankment. However, in such a conventional method, since the waste layer is directly covered with soil to cover the soil, rainwater due to rainfall permeates the waste layer, promotes gas generation due to anaerobic decomposition, and harmful components from the waste become rainwater. It will melt out. As a result, environmental problems such as ignition and offensive odor, soil, groundwater pollution, and water pollution occur during and after the landfill of waste, and even if landfilling is completed, the landfill of the waste treatment plant will be used for several years to several tens of years. There is a problem that you cannot do it for a minute.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、従来技術に
見られる前記問題を解決し、埋立処理後に環境問題の発
生のない廃棄物の埋立処理方法及びそれに用いる遮水シ
ートを提供することをその課題とする。SUMMARY OF THE INVENTION The present invention solves the above problems found in the prior art, and provides a waste landfill treatment method that does not cause environmental problems after landfill treatment, and a water-blocking sheet used therefor. Let's take that issue.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、前記課題
を解決すべく鋭意研究を重ねた結果、本発明を完成する
に至った。即ち、本発明によれば、多孔質フィルムを少
なくとも一部に有する防水通気性シートからなる廃棄物
の埋立て処理用遮水シートが提供される。また、本発明
によれば、廃棄物を所定量廃棄する毎に盛土を行うに際
し、前記遮水シートを廃棄物上に敷設した後盛土を行う
ことを特徴とする廃棄物の埋立て処理方法が提供され
る。The present inventors have completed the present invention as a result of intensive studies to solve the above problems. That is, according to the present invention, there is provided a water impervious sheet for landfill treatment of waste, which comprises a waterproof and breathable sheet having a porous film at least in a part thereof. Further, according to the present invention, when performing embankment every time a predetermined amount of waste is discarded, a method of landfill treatment of waste is characterized by performing embankment after laying the impermeable sheet on the waste. Provided.
【０００５】本発明の廃棄物処理に用いる遮水シートと
しては、多孔質フィルムを少なくとも一部に有する防水
通気性シートが用いられる。多孔質フィルムとしては、
ポリオレフィン系、ポリウレタン系、ポリエステル系、
ポリエーテル系、ポリ塩化ビニル系、セルロース系等の
従来公知の多孔質高分子フィルムを任意に使用できる
が、好ましくは延伸多孔質ポリテトラフルオロエチレン
（特公昭５６−４５７７３号、特公昭５６−１７２１６
号）を用いるのがよい。この多孔質フィルムにおける平
均細孔直径は、５μｍ以下、好ましくは１μｍ以下であ
り、防水性と通気性を兼備したものであればよい。多孔
質フィルムの厚さは、通常、１０〜１００μｍ、好まし
くは３０〜８０μｍである。本発明では、この多孔質フ
ィルムは、その片面又は両面に通気性補強シートを積層
接着して好ましく用いられる。この場合、通気性補強シ
ートとしては、通気性がよく、強度の高いシートであれ
ばどのようなものでも使用可能であり、不織布、織布、
ネット、防水紙等が用いられる。多孔質フィルムに補強
シートを積層接着させる場合、その接着は部分接着法に
より行うのが好ましい。全面接着法により行うと、通気
性及び透湿性が損われて、廃棄物中から発生するガス、
水蒸気のスムースな透過が達成されなくなる。この部分
接着法には、点状接着、線状接着、パターン状接着等が
あり、積層面積に対して、接着剤塗布面積が５〜９５
％、好ましくは１０〜８０％の割合になるように接着剤
の塗布を行うのがよい。As the water-blocking sheet used in the waste treatment of the present invention, a waterproof and breathable sheet having a porous film at least in part is used. As a porous film,
Polyolefin type, polyurethane type, polyester type,
Conventionally known porous polymer films such as polyether type, polyvinyl chloride type and cellulose type can be optionally used, but preferably stretched porous polytetrafluoroethylene (Japanese Patent Publication No. 56-45773, Japanese Patent Publication No. 56-17216).
No.) should be used. The average pore diameter of this porous film is 5 μm or less, preferably 1 μm or less, and any material having both waterproofness and air permeability may be used. The thickness of the porous film is usually 10 to 100 μm, preferably 30 to 80 μm. In the present invention, this porous film is preferably used by laminating and adhering a breathable reinforcing sheet on one side or both sides thereof. In this case, as the breathable reinforcing sheet, any sheet having good breathability and high strength can be used, and a non-woven fabric, a woven fabric,
A net or waterproof paper is used. When the reinforcing sheet is laminated and adhered to the porous film, the adhesion is preferably performed by a partial adhesion method. When the whole surface bonding method is used, the gas permeability and moisture permeability are impaired, and the gas generated from the waste,
Smooth permeation of water vapor is not achieved. This partial bonding method includes dot bonding, linear bonding, pattern bonding, etc., and the adhesive application area is 5 to 95 with respect to the laminated area.
%, Preferably 10 to 80%, so that the adhesive is applied.
【０００６】本発明で用いる多孔質フィルムに対して
は、その少なくとも一方の面に親水性高分子層を設ける
ことが好ましい。親水性高分子としては従来公知のもの
を使用できるが、特に、ポリエーテルウレタン樹脂、ペ
ルフルオロスルホン酸樹脂等の使用が好ましい。多孔質
フィルムに補強シートを積層する場合、この親水性高分
子層の上に補強シートを積層するのが好ましい。この親
水性高分子層は、油分との接触による多孔質フィルムの
劣化を防止する。この親水性高分子層の厚みは、１〜５
０μｍ、好ましくは５〜２０μｍである。For the porous film used in the present invention, it is preferable to provide a hydrophilic polymer layer on at least one surface thereof. As the hydrophilic polymer, conventionally known ones can be used, but it is particularly preferable to use a polyether urethane resin, a perfluorosulfonic acid resin or the like. When laminating the reinforcing sheet on the porous film, it is preferable to laminate the reinforcing sheet on the hydrophilic polymer layer. This hydrophilic polymer layer prevents deterioration of the porous film due to contact with oil. The thickness of this hydrophilic polymer layer is 1 to 5
It is 0 μm, preferably 5 to 20 μm.
【０００７】本発明の遮水シートは、前記した多孔質フ
ィルムを少なくとも一部に有する防水通気性シートから
なる。この防水通気性シートは、それ全体を前記した多
孔質フィルムで構成することもできるが、この場合に
は、コストが高くなるため、従来一般に用いられている
遮水シートの一部に多孔質フィルムを組込んで用いるの
が有利である。遮水シートに組込む多孔質フィルムの位
置及び面積は、廃棄物層の面積、廃棄物層から放出され
るガスや水蒸気の量に応じて適当に決める。遮水シート
としては、水の透過を阻止し得るものであればどのよう
なものでも使用可能であるが、合成ゴムシートや合成樹
脂フィルム、例えば、ポリオレフィン樹脂シートや軟質
塩化ビニルシート等の使用が好適である。遮水シートに
対して多孔質フィルムを組込む場合の接着方法として
は、接着剤を用いる方法や熱融着する方法等があるが、
接着面の耐久性の点からは、熱融着方法の使用が有利で
ある。本発明の遮水シートを用いて廃棄物を埋立て処理
するには、廃棄物を所定量廃棄する毎に盛土を行うに際
し、本発明の遮水シートを廃棄物の上に敷設し、その敷
設した遮水シート上に盛土を行えばよい。The waterproof sheet of the present invention comprises a waterproof and breathable sheet having at least a part of the above-mentioned porous film. This waterproof breathable sheet may be entirely composed of the above-mentioned porous film, but in this case, since the cost becomes high, a porous film is used as a part of the conventional water-impervious sheet. It is advantageous to incorporate and use. The position and area of the porous film incorporated in the water-impervious sheet are appropriately determined according to the area of the waste layer and the amount of gas or water vapor released from the waste layer. As the water shield sheet, any material can be used as long as it can prevent the permeation of water, but it is preferable to use a synthetic rubber sheet or a synthetic resin film, for example, a polyolefin resin sheet or a soft vinyl chloride sheet. It is suitable. As a bonding method when incorporating the porous film into the water-blocking sheet, there are a method of using an adhesive and a method of heat fusion,
From the viewpoint of durability of the adhesive surface, it is advantageous to use the heat fusion method. For landfilling waste using the water blocking sheet of the present invention, the water blocking sheet of the present invention is laid on the waste at the time of embankment every time a predetermined amount of the waste is discarded Embankment should be done on the above-mentioned impermeable sheet.
【０００８】次に、本発明を図面を参照して説明する図
１は、本発明の防水通気性遮水シートの１例についての
要部斜視図を示す。この防水通気性遮水シートは、両面
に通気性補強シート２，３を積層接着させた多孔質フィ
ルム１を、複数の切欠部を有する遮水シート４のその切
欠部を包囲するように重ね、多孔質フィルムの周縁部に
おいて遮水シート４と接着させた構造のものである。遮
水シート１に多孔質フィルム１を組込む場合、その表面
には必ずしも切欠部を設ける必要はなく、多孔質シート
の両側面に遮水シートを接着して、中間部が多孔質フィ
ルムからなる構造のものや、遮水シートの所定個所に多
数の透孔を穿設し、その透孔部に多孔質フィルムを重
ね、接着する方法等を採用することができる。図２は、
本発明の防水通気性遮水シートを用いて廃棄物を埋立て
処理した際の状態図である。なお、図２において示した
各符号は図１に示したものと同一の意味を有する。Next, the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a main part of an example of the waterproof and breathable water-permeable sheet of the present invention. In this waterproof and breathable water-permeable sheet, a porous film 1 in which breathable reinforcing sheets 2 and 3 are laminated and adhered on both sides is stacked so as to surround the cutout portion of a water-permeable sheet 4 having a plurality of cutout portions, The structure is such that the periphery of the porous film is bonded to the water blocking sheet 4. When the porous film 1 is incorporated into the water-impervious sheet 1, it is not always necessary to provide notches on the surface thereof, and the water-impermeable sheets are adhered to both side surfaces of the porous sheet, and the intermediate portion is made of the porous film. It is also possible to employ a method in which a large number of through holes are formed in a predetermined location of the water blocking sheet or the water blocking sheet, and a porous film is overlapped on the through hole portions and bonded. Figure 2
It is a state figure when a landfill process of waste is carried out using the waterproof breathable impermeable sheet of the present invention. Each symbol shown in FIG. 2 has the same meaning as that shown in FIG.
【０００９】[0009]
【発明の効果】本発明の防水通気性の遮水シートを用い
て廃棄物を埋立て処理することによって、雨水が廃棄物
内に浸入することを完全に防止できる。従って、本発明
によれば、雨水が廃棄物に混入することにより生じる廃
棄物の嫌気性分解の促進の問題や、廃棄物からの有害成
分が雨水に溶出する問題を効果的に解決することができ
る。また、廃棄物から放出されるガスや水蒸気を本発明
遮水シートの通気性を利用して早期に放出させることが
できる。INDUSTRIAL APPLICABILITY By burying waste with the waterproof and breathable water-permeable sheet of the present invention, rainwater can be completely prevented from entering the waste. Therefore, according to the present invention, it is possible to effectively solve the problem of accelerating anaerobic decomposition of waste caused by mixing rainwater with waste and the problem of leaching harmful components from waste into rainwater. it can. Further, the gas and water vapor released from the waste can be released early by utilizing the air permeability of the water-impermeable sheet of the present invention.
【図１】本発明の防水通気性遮水シートの１例について
の要部斜視図を示す。FIG. 1 is a perspective view of a main part of an example of a waterproof and breathable water-permeable sheet of the present invention.
【図２】本発明の防水通気性シートを用いて廃棄物を埋
立て処理した際の状態図を示す。FIG. 2 shows a state diagram when waste is landfilled using the waterproof breathable sheet of the present invention.
１ 多孔質フィルム ２，３ 通気性補強シート ４ 遮水シート 1 Porous Film 2, 3 Breathable Reinforcing Sheet 4 Impermeable Sheet
Claims (5)
る防水通気性シートからなる廃棄物の埋立て処理用遮水
シート。1. A water impervious sheet for landfilling waste, comprising a waterproof and breathable sheet having a porous film in at least a part thereof.
方の面に通気性補強シートを部分接着させたものである
請求項１の遮水シート。2. The water impervious sheet according to claim 1, wherein the porous film has a breathable reinforcing sheet partially adhered to at least one surface thereof.
ロエチレンの延伸多孔質フィルムである請求項１又は２
の遮水シート。3. The stretched porous film of polytetrafluoroethylene according to claim 1, wherein the porous film is a stretched porous film.
Water barrier sheet.
方の面に親水性樹脂層を有するものである請求項１〜３
のいずれかの遮水シート。4. The porous film has a hydrophilic resin layer on at least one surface thereof.
Any of the impermeable sheets.
に際し、前記請求項１〜４のいずれかの遮水シートを廃
棄物上に敷設した後盛土を行うことを特徴とする廃棄物
の埋立て処理方法。5. When embankment is performed every time a predetermined amount of waste is discarded, embankment is performed after the water-impermeable sheet according to any one of claims 1 to 4 is laid on the waste. Landfill disposal method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21636291A JP3171461B2 (en) | 1991-08-01 | 1991-08-01 | Waterproof sheet for landfilling waste and method for landfilling waste using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21636291A JP3171461B2 (en) | 1991-08-01 | 1991-08-01 | Waterproof sheet for landfilling waste and method for landfilling waste using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0647363A true JPH0647363A (en) | 1994-02-22 |
| JP3171461B2 JP3171461B2 (en) | 2001-05-28 |
Family
ID=16687382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21636291A Expired - Lifetime JP3171461B2 (en) | 1991-08-01 | 1991-08-01 | Waterproof sheet for landfilling waste and method for landfilling waste using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3171461B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996025569A1 (en) * | 1995-02-17 | 1996-08-22 | Japan Gore-Tex Inc. | Moisture-permeable composite sheet for water-proofing concrete |
| WO1997015378A1 (en) * | 1995-10-27 | 1997-05-01 | W.L. Gore & Associates Gmbh | Biofilter cover |
| GB2315066A (en) * | 1996-07-05 | 1998-01-21 | Paul Watson Wheeler | Waste disposal |
| KR100341609B1 (en) * | 2000-03-04 | 2002-06-22 | 이금용 | The final capping method in landfill and landfill gas feed back system in its final cap |
-
1991
- 1991-08-01 JP JP21636291A patent/JP3171461B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996025569A1 (en) * | 1995-02-17 | 1996-08-22 | Japan Gore-Tex Inc. | Moisture-permeable composite sheet for water-proofing concrete |
| WO1997015378A1 (en) * | 1995-10-27 | 1997-05-01 | W.L. Gore & Associates Gmbh | Biofilter cover |
| GB2315066A (en) * | 1996-07-05 | 1998-01-21 | Paul Watson Wheeler | Waste disposal |
| KR100341609B1 (en) * | 2000-03-04 | 2002-06-22 | 이금용 | The final capping method in landfill and landfill gas feed back system in its final cap |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3171461B2 (en) | 2001-05-28 |
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