JP2006015309A - Volume reduction method for landfill waste - Google Patents
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- JP2006015309A JP2006015309A JP2004198265A JP2004198265A JP2006015309A JP 2006015309 A JP2006015309 A JP 2006015309A JP 2004198265 A JP2004198265 A JP 2004198265A JP 2004198265 A JP2004198265 A JP 2004198265A JP 2006015309 A JP2006015309 A JP 2006015309A
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Abstract
Description
本発明は、ゴミ（一般廃棄物、産業廃棄物等）の最終処分場における埋め立てゴミの減容化方法に関するものである。 The present invention relates to a method for reducing the volume of landfill waste at a final disposal site for waste (general waste, industrial waste, etc.).
いうまでもなく、都市部、農村部の区別なく、ゴミ問題は、深刻な状況に至っている。市民の意識も向上し、ゴミの分別収集が進んでいるが、いかんせん、ゴミが埋め立てられる既設の最終処分場は、その残余年数がないか、あるいは残余年数がわずかになってきている。 Needless to say, the problem of garbage has become serious, regardless of whether it is urban or rural. Citizens' awareness has improved, and garbage collection is progressing. However, existing landfill sites where landfills are filled with landfills have little or no remaining years.
新規の最終処分場を建設することも、環境悪化を心配する地域住民の反対にあって非常に困難である。 Construction of a new final disposal site is also very difficult, as opposed to local residents who are concerned about environmental degradation.
ゴミ問題の対策として、ゴミの総量規制やリサイクル運動の徹底等の点も重要であるが、既設の最終処分場を延命化する点もきわめて重要である。 As countermeasures for the garbage problem, it is important to regulate the total amount of garbage and to thoroughly implement recycling activities, but it is also extremely important to extend the life of the existing final disposal site.
既設の最終処分場を延命化するためには、従来から次のような方法がとられている（例えば、特許文献１参照）。
（１）埋め立てゴミをパワーショベル等で地中から地面に掘り起こす。
（２）掘り起こした埋め立てゴミをリサイクルできるものとできないものに分別する。
（３）リサイクルできないものを地上で破砕し埋め戻す。
In order to prolong the life of an existing final disposal site, the following method has been conventionally employed (for example, see Patent Document 1).
(1) Dig up landfill garbage from the ground to the ground with a power shovel.
(2) Sorting landfills that have been dug up into those that can be recycled and those that cannot.
(3) Crush and refill things that cannot be recycled on the ground.
即ち、埋め立てゴミは、全て地上で処理される。埋め立てゴミは、有機分などを含み、地中の微生物がそれを分解しているのが普通であり、また、埋め立てゴミ内にはウジ、ゴキブリ等の害虫が増殖していることが多い、このようにすると、周囲に悪臭、ガス、害虫が散乱し、周囲環境を汚染するおそれが大である。また、処理できる埋め立てゴミの深さは、パワーショベル等の能力により限定され、減容化率（処理により削減された埋め立てゴミの体積を、処理前の埋め立てゴミの体積で除した百分率）が低い。 That is, all landfill waste is processed on the ground. Landfill waste usually contains organic matter, etc., and microorganisms in the ground usually decompose it. In addition, pests such as maggots and cockroaches often grow in landfill waste. If it does so, a bad odor, gas, and a pest will scatter in the circumference | surroundings, and there exists a big possibility of contaminating the surrounding environment. The depth of landfill waste that can be treated is limited by the capacity of a power shovel, etc., and the volume reduction rate (percentage obtained by dividing the volume of landfill waste reduced by the treatment by the volume of landfill waste before treatment) is low. .
以上の点を考慮し、非特許文献１は、スクリューオーガ（円柱状の中心軸の周りにスパイラル状の羽根を備える）を改造したものを用いて、回転させながら地中に圧入して圧入孔を形成し、圧入孔内の埋め立てゴミを締め固める技術を開示する。 In view of the above points, Non-Patent Document 1 uses a modified screw auger (having spiral blades around a cylindrical central axis) and press-fitted into the ground while rotating. And a technique for compacting the landfill waste in the press-fitting hole is disclosed.
しかしながら、この工法は、スクリューオーガにより、圧入孔内の埋め立てゴミを下方ないし圧入孔の周囲の壁に押しつけているだけである。この工法は、後述するように、ゴミの性状にあったものとは言い難い。このため、圧入孔毎の減容化率を上げるために、平面視において、圧入孔同士をある程度間隔を開けて配置している。言い換えると、圧入孔間に、未処理の箇所が形成されるため、全体としての減容化率は、２０〜２５％程度にとどまる。
そこで本発明は、ゴミの性状にあった処理を行え、かつ環境を汚染する度合いが小さい埋め立てゴミの減容化方法を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a method for reducing the volume of landfill waste that can be treated in accordance with the properties of the waste and has a low degree of polluting the environment.
請求項２記載の埋め立てゴミの減容化方法は、チェーンカッタを用いて目標深度まで埋め立てゴミを切削して切削孔を形成し切削孔において埋め立てゴミの層状形態を断ち切り切削ゴミとなす切削ステップと、切削孔内のゴミを転圧する転圧ステップとを含む。 The method for reducing the volume of landfill waste according to claim 2 includes a cutting step of cutting the landfill waste to a target depth using a chain cutter to form a cutting hole, and cutting off the layered form of the landfill waste in the cutting hole to form a cutting waste. And a compaction step for compacting dust in the cutting hole.
ここで、埋め立てゴミは、概ね、塊状ゴミ（不定形で空隙に富む）、焼却灰（土砂性状に近い）及び繊維状ゴミ（電線被覆材、木屑、布類等）の集合体から形成される。塊状ゴミは地中においてランダムかつ散点状に分布し、その間隙に繊維状ゴミや焼却灰が分布する。そして、塊状ゴミや繊維状ゴミは、空隙を多数有する。埋め立てゴミの機械的性質を、マクロ的に見ると、塊状ゴミや繊維状ゴミの空隙内の空気あるいはその他のガスがバネとして作用する比較的軽量な弾性体であって、複雑な層構造をなすと考えることができる。 Here, landfill waste is generally formed from aggregates of lump-like waste (indefinite shape and rich in voids), incinerated ash (close to earth and sand properties), and fibrous waste (wire covering material, wood waste, cloth, etc.). . The lump-like waste is distributed randomly and scattered in the ground, and fibrous waste and incinerated ash are distributed in the gaps. And lump-like garbage and fibrous garbage have many voids. Looking at the mechanical properties of landfill waste from a macro perspective, it is a relatively lightweight elastic body in which air or other gas in the voids of massive waste or fibrous waste acts as a spring, forming a complex layered structure. Can be considered.
したがって、埋め立てゴミに単に圧力をかけると、埋め立てゴミは収縮して体積が一時的に小さくなるが、その後、埋め立てゴミは、その弾性体としての性質により復元力を発揮し、その体積は圧力をかける前のものに近づく。 Therefore, if pressure is simply applied to landfill waste, the landfill waste shrinks and the volume temporarily decreases, but then the landfill waste exerts a restoring force due to its elastic properties, and its volume exerts pressure. Get closer to the one before the call.
さて、上記構成において、チェーンカッタを用いて目標深度まで埋め立てゴミを切削して切削孔を形成し切削孔において埋め立てゴミの層状形態を断ち切り切削ゴミとなすことにより、切削孔の境界付近において、チェーンカッタは、塊状ゴミを破砕して細かな断片になし、延伸性がある繊維状ゴミをずたずたに切り裂く。その結果、上記層構造が破壊される。また、ゴミの密度が高まり、ゴミは従前よりも均質になる。 Now, in the above configuration, the landfill waste is cut to a target depth using a chain cutter to form a cutting hole, and the layered form of the landfill waste is cut into the cutting hole to form a cutting waste. The cutter breaks up lump-like litter into fine pieces and tears out litter-like fibrous litter. As a result, the layer structure is destroyed. In addition, the density of garbage increases, and the garbage becomes more homogeneous than before.
これにより、塊状ゴミや繊維状ゴミに含まれていた空隙内の空気あるいはその他のガスが、自由に移動可能となり、飛散する。その結果、切削孔内の埋め立てゴミはマクロ視的な弾性を失い、復元力をほとんど発揮しなくなる。しかも、切削孔内の埋め立てゴミは、切削孔の周囲の埋め立てゴミから切り離され、切削孔外の埋め立てゴミによる機械的作用をほとんど受けなくなる。言い換えれば、次に転圧がかかると、切削孔内の埋め立てゴミは、きわめて簡単に圧縮される状態となる。 As a result, the air or other gas in the gaps contained in the lump or fibrous litter is freely movable and scattered. As a result, the landfill waste in the cutting hole loses macroscopic elasticity and hardly exhibits a restoring force. Moreover, the landfill waste in the cutting hole is separated from the landfill waste around the cutting hole, and hardly receives mechanical action due to the landfill waste outside the cutting hole. In other words, when rolling pressure is applied next, the landfill waste in the cutting hole is compressed very easily.
したがって、埋め戻された切削ゴミを転圧する転圧ステップにおいて、良好な減容化率を得ることができる。 Therefore, a good volume reduction rate can be obtained in the compaction step of compacting the backfilled cutting waste.
しかも、チェーンカッタを用いて上記層構造を破壊しているため、現在の切削孔を処理する反作用として、現在の切削孔の周囲が盛り上がる（非特許文献１は、この現象のため、圧入孔同士をある程度間隔を開けて配置しているのではないかと考えられる）ようなことはなく、次回の処理において、現在の切削孔のすぐ隣りあるいは、現在の切削孔にオーバーラップして、新たな切削孔を形成できる。このため、平面視における切削孔の密度を高め、減容化率をさらに向上できる。 In addition, since the layer structure is broken using a chain cutter, the periphery of the current cutting hole is raised as a reaction for processing the current cutting hole. In the next process, the next cutting process will either be adjacent to the current cutting hole or overlap with the current cutting hole to create a new cutting. A hole can be formed. For this reason, the density of the cutting hole in a plan view can be increased and the volume reduction rate can be further improved.
また、チェーンカッタを用いているため、目標深度を深く設定することができ、一層減容化率を向上できる。 Moreover, since the chain cutter is used, the target depth can be set deep, and the volume reduction rate can be further improved.
請求項３記載の埋め立てゴミの減容化方法では、切削ステップの結果得られた切削ゴミを切削孔内に埋め戻す埋め戻しステップをさらに含む。 The landfill waste volume reducing method according to claim 3 further includes a backfilling step of backfilling the cutting dust obtained as a result of the cutting step into the cutting hole.
この構成により、切削ゴミを切削孔内に戻して、周囲環境を汚染しないようにすることができる。しかも、切削ゴミは、既にずたずたに引き裂かれたものであるから、転圧に対し圧縮されやすい状態にあり、良好な減容化率が得られる。 With this configuration, cutting dust can be returned into the cutting hole so that the surrounding environment is not contaminated. Moreover, since the cutting waste has already been torn apart, it is easily compressed against the rolling pressure, and a good volume reduction rate can be obtained.
請求項４記載の埋め立てゴミの減容化方法では、埋め戻しステップと転圧ステップとは、並行して実施される。 In the landfill waste volume reducing method according to the fourth aspect, the backfilling step and the rolling step are performed in parallel.
この構成により、処理時間を短縮できる。 With this configuration, the processing time can be shortened.
請求項５記載の埋め立てゴミの減容化方法では、埋め戻しステップと転圧ステップとは、チェーンカッタを用いて実施される。 In the method for reducing the volume of landfill waste according to claim 5, the backfilling step and the rolling step are performed using a chain cutter.
この構成により、減容化の処理に要する部品点数を少なくでき、設備費用を削減できる。また、処理装置の交換に要する時間を短縮できる。 With this configuration, the number of parts required for volume reduction processing can be reduced, and the equipment cost can be reduced. In addition, the time required for replacing the processing apparatus can be shortened.
請求項６記載の埋め立てゴミの減容化方法では、埋め戻しステップと転圧ステップとは、別個に実施される。 In the landfill waste volume reducing method according to the sixth aspect, the backfilling step and the rolling step are performed separately.
この構成により、埋め戻しは埋め戻しに適した装置を用いて実施でき、転圧は転圧に適した装置を用いて実施できる。 With this configuration, backfilling can be performed using a device suitable for backfilling, and rolling can be performed using a device suitable for rolling.
請求項７記載の埋め立てゴミの減容化方法では、転圧ステップは、チェーンカッタとは異なる転圧装置を用いて実施される。 According to a seventh aspect of the present invention, the rolling compaction step is performed using a compacting device different from the chain cutter.
この構成により、チェーンカッタによるよりも高い減容化率を得ることができる。 With this configuration, it is possible to obtain a higher volume reduction rate than with a chain cutter.
請求項８記載の埋め立てゴミの減容化方法では、転圧装置は、パワーショベル、スクリュー式圧密装置、バイブレータ式圧密装置のいずれかである。 In the landfill waste volume reducing method according to claim 8, the compaction device is any one of a power shovel, a screw compaction device, and a vibrator compaction device.
この構成により、転圧に適した装置により、高い減容化率を得ることができる。 With this configuration, a high volume reduction rate can be obtained with an apparatus suitable for rolling.
請求項９記載の埋め立てゴミの減容化方法では、切削ステップと転圧ステップとが、切削孔に対し繰り返し実施される。 In the landfill waste volume reducing method according to the ninth aspect, the cutting step and the rolling step are repeatedly performed on the cutting hole.
この構成により、繰り返し減容化が実施されるため、一層減容化率を向上できる。 With this configuration, volume reduction is repeatedly performed, so that the volume reduction rate can be further improved.
請求項１０記載の埋め立てゴミの減容化方法では、切削ステップと埋め戻しステップとの間に、切削ゴミのうちリサイクルする部分とリサイクルしない部分とに分別する分別ステップを含み、埋め戻しステップでは、リサイクルする部分を切削孔内に埋め戻す対象から除外する。
In the method for reducing the volume of landfill waste according to
この構成により、リサイクルできる部分をリサイクル（サーマルリサイクル、マテリアルリサイクル等）することにより、資源を有効活用できるだけでなく、埋め戻される体積を減らして、減容化率をさらに高めることができる。 With this configuration, by recycling the recyclable part (thermal recycling, material recycling, etc.), not only can resources be effectively utilized, but also the volume to be backfilled can be reduced, and the volume reduction rate can be further increased.
本発明によれば、埋め立てゴミの層構造を破壊し、高い減容化率を得ることができ、切削ゴミが地上に広範囲にばらまかれることはないから、環境を汚染する度合いが小さい。 According to the present invention, the layer structure of landfill waste can be destroyed, a high volume reduction rate can be obtained, and cutting waste is not spread over a wide range on the ground, so the degree of environmental pollution is small.
以下、図面を参照しながら、本発明の実施の形態を説明する。図１は、本発明の一実施の形態における埋め立てゴミの減容化方法の切削工程説明図であり、図２は、同転圧工程説明図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of a cutting process of a method for reducing the volume of landfill waste in one embodiment of the present invention, and FIG. 2 is an explanatory diagram of the rolling compaction process.
まず、図１（ａ）に示すように、地面１に対しチェーンカッタ２の長手方向をほぼ垂直になし、チェーンカッタ２のチェーンに多数設けられたビット３で埋め立てゴミの切削を開始する。このとき、ビット３を保持するチェーンの回転方向は正（矢印Ｎ１）であり、チェーンカッタ２の進行方向は下向き（矢印Ｎ２）である。なお、チェーンカッタ２の昇降は、クレーン（図示せず）等チェーンカッタ２を支持する装置による。チェーンカッタは、任意のもので差し支えなく、さらに、円筒形の切削孔を形成するタイプのカッタを用いても良い。 First, as shown in FIG. 1A, the longitudinal direction of the chain cutter 2 is made substantially perpendicular to the ground 1, and cutting of landfill waste is started with a plurality of bits 3 provided on the chain of the chain cutter 2. At this time, the rotation direction of the chain holding the bit 3 is positive (arrow N1), and the traveling direction of the chain cutter 2 is downward (arrow N2). The chain cutter 2 is moved up and down by a device that supports the chain cutter 2 such as a crane (not shown). As the chain cutter, any chain cutter may be used, and a cutter that forms a cylindrical cutting hole may be used.
そして、目標深度Ｈ１まで埋め立てゴミの切削を継続する。このとき、地面１の上には、切削ゴミ４が排出され、切削の結果、切削孔１０が形成される。この切削により、埋め立てゴミの層状形態が断ち切られる。目標深度Ｈ１は、例えば５ｍ〜２０ｍのように深く設定できる。
Then, the cutting of the landfill waste is continued until the target depth H1. At this time, cutting dust 4 is discharged on the ground 1, and a cutting
地面１上において、切削ゴミ４は、リサイクルする部分とリサイクルしない部分とに分別され、リサイクルする部分は、切削孔１０内に埋め戻さず、リサイクル施設へ搬出される。
On the ground 1, the cutting dust 4 is separated into a portion to be recycled and a portion not to be recycled, and the portion to be recycled is carried back to the recycling facility without being backfilled in the cutting
次に、図１（ｂ）に示すように、ビット３を保持するチェーンの回転方向を逆（矢印Ｎ３）としチェーンカッタ２を上昇させる（矢印Ｎ４）。このとき、切削ゴミ４をバックホウ５を用いて切削孔１０内に押し込み、切削ゴミ４を切削孔１０内に埋め戻す。また、チェーンの回転を止め、チェーンカッタ２を上下させながら切削孔１０内に埋め戻した切削ゴミ４を転圧する。このようにすれば、埋め戻しと転圧とが、チェーンカッタを用いて並行して実施されることになる。
Next, as shown in FIG. 1B, the chain cutter 2 is raised (arrow N4) with the rotation direction of the chain holding the bit 3 reversed (arrow N3). At this time, the cutting dust 4 is pushed into the cutting
そして、図１（ｃ）示すように、以上の処理が完了したら、チェーンカッタ２を引き上げて切削孔１０を開放する。なお、次の転圧工程を実施する場合には、チェーンカッタ２による切削ゴミ１１の転圧は、省略しても良い。また、次の切削は、現在の切削孔１０に接して、あるいはオーバーラップして実施することができる。
And as shown in FIG.1 (c), when the above process is completed, the chain cutter 2 will be pulled up and the cutting
次の転圧工程を実施しない場合には、図１（ｃ）において、減容化率は、（Ｈ２／Ｈ１）＊１００（％）となる。また、後述するように、図１に示した切削及び転圧は、繰り返し実施することが望ましい。こうすると、減容化率をさらに向上できる。 When the next rolling step is not performed, the volume reduction rate is (H2 / H1) * 100 (%) in FIG. Further, as will be described later, it is desirable to repeatedly perform the cutting and rolling shown in FIG. In this way, the volume reduction rate can be further improved.
次に、図２を参照しながら、切削孔１０内のゴミを転圧する転圧工程について説明する。本形態では、図２に示すように、転圧を、図１に示したチェーンカッタとは異なる転圧装置を用いて実施する。転圧装置は、パワーショベル、スクリュー式圧密装置、バイブレータ式圧密装置のいずれでも良いが、本形態では、スクリュー式圧密装置を用いる。
Next, a compacting process for compacting dust in the cutting
本形態のスクリュー式圧密装置は、図２（ａ）に示すように、駆動部１７により駆動され正逆回転する円筒状の回転軸１５を備え、回転軸１５の先端部には、螺旋羽根１６が設けられている。
As shown in FIG. 2A, the screw-type compacting device of the present embodiment includes a cylindrical
そして、駆動部１７により、螺旋羽根１６を正転させながら下向き（矢印Ｎ５方向）に下降させる。その結果、螺旋羽根１６は切削ゴミ１１内を下向きに進行する。
Then, the
図２（ｂ）に示すように、螺旋羽根１６が目標深度Ｈ１まで達したら、螺旋羽根１６の回転方向を逆にし螺旋羽根１６を上昇させる。その結果、切削ゴミ１１は、螺旋羽根１６により転圧され深さ方向に圧縮される。
As shown in FIG. 2B, when the
図２（ｃ）に示すように、転圧が完了したとき、切削ゴミ１１の深さをＨ３とすると、減容化率は、（Ｈ３／Ｈ１）＊１００（％）となる。
As shown in FIG. 2C, when the rolling compaction is completed and the depth of the cutting
本発明者が、秘密裏に実施した実験により、次のような結果を得た。 The following results were obtained by experiments conducted by the inventor in secret.
（実験１）福岡県大牟田市所有の一般廃棄物最終処分場（福岡県大牟田市大浦町、大牟田市第２大浦埋立地内）において、埋め立て終了後２０年程度経過した埋め立てゴミを、チェーンカッタを使用し減容化試験した。但し、切削ゴミの分別やリサイクルは行わず、チェーンカッタのみを用いて、切削ゴミをそのまま転圧し、埋め戻しした。その結果、平均約４０％の減容化率を得た。 (Experiment 1) At the municipal waste final disposal site (Oura-machi, Omuta-shi, Fukuoka, 2nd Oura landfill in Omuta-shi) owned by Omuta City, Fukuoka Prefecture, a chain cutter is used for landfill waste that has passed about 20 years after landfill completion. The volume reduction test was conducted. However, the cutting dust was not separated and recycled, and the cutting dust was rolled and backfilled using only the chain cutter. As a result, an average volume reduction rate of about 40% was obtained.
詳細は、つぎのとおり。
（１）未破砕ゴミの性状・形状調査
バックホウにて覆土を掘り、深度約１ｍのゴミを調査した。ゴミの種類としては、木材、合成樹脂（容器、シート、袋等）、ガラス、ゴム類（電線被覆材）、金属（缶、線等）及び焼却灰などであった。形状は、元の形状を失っているものや元の形状のままのものなど様々であった。サイズは、砂状の小径のものから直径３０ｃｍ以上の木材などこれも様々であった。
Details are as follows.
(1) Investigation of properties and shape of uncrushed trash Covered soil was dug with a backhoe, and trash with a depth of about 1 m was investigated. The types of garbage were wood, synthetic resin (containers, sheets, bags, etc.), glass, rubbers (cable covering materials), metals (cans, wires, etc.) and incinerated ash. There were various shapes, such as those that had lost their original shape and those that had remained their original shape. The sizes varied from sandy small diameter wood to wood with a diameter of 30 cm or more.
さらに、バックホウにて覆土を掘り、深度約２ｍのゴミを調査した。深度約１ｍのゴミとほとんど変わらず、大きな石や焼却灰がやや多い点が確認された。
（２）第１、２回試験
目標深度を５ｍとし、チェーンカッタを使用し減容化試験した。
In addition, dug soil was dug with a backhoe, and trash with a depth of about 2 m was investigated. It was almost the same as garbage with a depth of about 1 m, and there were some large stones and incineration ash.
(2) First and second tests The target depth was 5 m, and a volume reduction test was performed using a chain cutter.
減容化率は、次のとおり。 The volume reduction rate is as follows.
切削した体積は
1(m)*0.75(m)*5(m)+0.5(m)*0.5(m)*3.14*0.75(m)/2=4.04(m^3)
減容化した体積は
0.95(m)*1.4(m)*1.4(m)=1.86(m^3)
減容化率は
(1.86/4.04)*100=46.04(%)
（３）考察
減容化率は、転圧の方法により、大きく左右されるものと考えられる。より大きな減容化率を得るには、撤きだし厚を小さくする、一度の転圧後、再度２ｍ程度チェーンカッタで切削し、転圧を繰り返すとよい。最終的に、５０〜６０％程度の減容化率を得ることが可能である。
The cut volume is
1 (m) * 0.75 (m) * 5 (m) +0.5 (m) * 0.5 (m) * 3.14 * 0.75 (m) /2=4.04 (m ^ 3)
Volume reduced
0.95 (m) * 1.4 (m) * 1.4 (m) = 1.86 (m ^ 3)
Volume reduction rate is
(1.86 / 4.04) * 100 = 46.04 (%)
(3) Consideration The volume reduction rate is considered to be greatly affected by the rolling method. In order to obtain a larger volume reduction rate, it is preferable to reduce the thickness and reduce the thickness, and after rolling once, cut with a chain cutter again about 2 m and repeat the rolling. Finally, it is possible to obtain a volume reduction rate of about 50 to 60%.
（実験２）
実験１と同様にして、非特許文献１記載の技術（比較例）と本発明（本法）との比較実験を行った。結果は、次のとおり。
(Experiment 2)
In the same manner as in Experiment 1, a comparison experiment between the technique described in Non-Patent Document 1 (Comparative Example) and the present invention (this method) was performed. The results are as follows:
本法 比較例
目標深度 ５ｍ １０ｍ
減容化率 ３０〜３５％ ２０〜２５％
工事費（円） 15000-20000 25000-30000
ここで、目標深度が深いほど、高い減容化率を得やすく有利である。本法は、目標深度の点で、比較例よりも不利な条件で実施したが、比較例よりも優れた減容化率が得られた。
This method Comparative example Target depth 5m 10m
Volume reduction rate 30-35% 20-25%
Construction cost (yen) 15000-20000 25000-30000
Here, the deeper the target depth, the easier it is to obtain a high volume reduction rate. Although this method was implemented on the conditions which are disadvantageous than a comparative example by the point of target depth, the volume reduction rate superior to the comparative example was obtained.
本発明に係る埋め立てゴミの減容化方法は、例えば、埋め立てゴミの最終処分場等において好適に利用できる。 The method for reducing the volume of landfill waste according to the present invention can be suitably used in, for example, a final disposal site for landfill waste.
１ 地面
２ チェーンカッタ
３ ビット
４、１１ 切削ゴミ
５ バックホウ
１０ 切削孔
１５ 回転軸
１６ 螺旋羽根
１７ 駆動部
DESCRIPTION OF SYMBOLS 1 Ground 2 Chain cutter 3
Claims (10)
前記切削孔内のゴミを転圧する転圧ステップとを含む埋め立てゴミの減容化方法。 A cutting step of cutting the landfill waste to a target depth using a cutter to form a cutting hole, and cutting off the layered form of the landfill waste in the cutting hole to become cutting waste,
A method for reducing the volume of landfill waste, comprising a compaction step of compacting the dust in the cutting hole.
前記埋め戻しステップでは、前記リサイクルする部分を前記切削孔内に埋め戻す対象から除外する、請求項３記載の埋め立てゴミの減容化方法。 Between the cutting step and the backfilling step, including a sorting step of sorting into a portion to be recycled and a portion not to be recycled of the cutting waste,
The method for reducing the volume of landfill waste according to claim 3, wherein, in the backfilling step, the portion to be recycled is excluded from a target to be backfilled in the cutting hole.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2471448A (en) * | 2009-06-03 | 2011-01-05 | Geoffrey Kevin Ellison | A method of disposing of landfill waste |
| JP5602321B1 (en) * | 2014-02-14 | 2014-10-08 | 株式会社山▲崎▼砂利商店 | Waste disposal method, treatment method and treatment apparatus |
| JP2015054275A (en) * | 2013-09-11 | 2015-03-23 | 株式会社エムエルティーソイル | Waste disposal method in waste disposal site |
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2004
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2471448A (en) * | 2009-06-03 | 2011-01-05 | Geoffrey Kevin Ellison | A method of disposing of landfill waste |
| JP2015054275A (en) * | 2013-09-11 | 2015-03-23 | 株式会社エムエルティーソイル | Waste disposal method in waste disposal site |
| JP5602321B1 (en) * | 2014-02-14 | 2014-10-08 | 株式会社山▲崎▼砂利商店 | Waste disposal method, treatment method and treatment apparatus |
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