JP2003001227A - Method for reforming acidic soil - Google Patents

Method for reforming acidic soil

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Publication number
JP2003001227A
JP2003001227A JP2001187732A JP2001187732A JP2003001227A JP 2003001227 A JP2003001227 A JP 2003001227A JP 2001187732 A JP2001187732 A JP 2001187732A JP 2001187732 A JP2001187732 A JP 2001187732A JP 2003001227 A JP2003001227 A JP 2003001227A
Authority
JP
Japan
Prior art keywords
soil
acidic soil
lime
crushed material
acidic
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
Application number
JP2001187732A
Other languages
Japanese (ja)
Inventor
Akira Miyake
晃 三宅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2001187732A priority Critical patent/JP2003001227A/en
Publication of JP2003001227A publication Critical patent/JP2003001227A/en
Pending legal-status Critical Current

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  • Processing Of Solid Wastes (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method for reforming acidic soil which can neutralize acidic soil without mach expense. SOLUTION: Light-weight cellular concrete panels 1 consisting essentially of lime and silica which is generated by the dismantling of buildings are crushed, the crushed material 1a is allowed to coexist with the acidic soil A and the acidic soil A is neutralized by the lime which is obtained by dissolving the crushed material 1a.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】この発明は、酸性化された土
壌を中和させる酸性土壌の改質方法に関するものであ
る。 【0002】 【従来の技術】一般に、作物や植物の多くは酸性の土壌
では生育は思わしくない。その理由については、土壌の
水素イオン濃度が増加すること、置換性塩基、特に石灰
が欠乏すること、酸性の土からアルミニウムやマンガン
等が溶け出して根が障害を受けることなどが直接的原因
とされている。 【0003】そのような不都合を解消するには石灰を施
用して土壌のpHを適当に矯正するのが有効である。 【0004】 【発明が解決しようとする課題】ところで、石灰を施用
する酸性土壌の改質方法においては、石灰が強アルカリ
性のため、素手で触れると冒されるほど化学作用が激し
く、取り扱いが困難である。 【0005】また、土の酸性を中和する速度も速く、施
用直後、土が中のアンモニア態窒素を揮散させるという
不都合がある。 【0006】さらに、降雨の際、水が土壌中を浸透する
と、石灰が溶解されて失われ、石灰の保持力が弱く、中
和効果を長期にわたり保持することができないという不
都合もある。 【0007】一般に、軽量気泡コンクリートパネル(A
LCパネル)は建物の壁材として広く採用されている。
この壁材は、建物の解体によって廃材として取り扱わ
れ、廃棄処理されることが多い。本件の発明者は、この
廃棄処理される軽量気泡コンクリートパネルが石灰質と
けい酸質を主成分としていることに着目し、その軽量気
泡コンクリートパネルを粉砕して土壌に混在されること
によって酸性土壌を中和させることを見い出したのであ
る。 【0008】この発明の課題は、建物の解体によって発
生する軽量気泡コンクリートパネルの有効利用を図り、
酸性土壌をコストをかけることなく中和させることがで
きるようにした酸性土壌の改質方法を提供することであ
る。 【0009】 【課題を解決するための手段】上記の課題を解決するた
めに、この発明においては、石灰質およびけい酸質を主
成分とする軽量気泡コンクリートパネルを粉砕し、その
粉砕物を土壌に混在させる構成を採用したのである。 【0010】上記のように、軽量気泡コンクリートパネ
ルの粉砕物を土壌に混在させることにより、粉砕物から
溶解される石灰によって酸性土壌を中和させることがで
きる。このため、廃材の有効利用を図ることができると
共に、コストをかけることなく酸性土壌を中和させるこ
とができる。 【0011】また、軽量気泡コンクリートパネルの粉砕
物は、空隙率が80%程度と高く、その空隙に空気や水
分を保持させることができるため、植物の根から充分に
酸素や水分を採取させることができ、植物の根が生育不
良になるのを防止することができる。 【0012】 【発明の実施の形態】以下、この発明の実施の形態を図
面に基づいて説明する。図1(I)において、1は軽量
気泡コンクリートパネルを示す。この軽量気泡コンクリ
ートパネル1は、建物の解体によって発生したものが利
用されている。 【0013】上記軽量気泡コンクリートパネル1は石灰
質およびけい酸質を主成分とし、気泡および細孔から成
る空隙は80%程度とされている。 【0014】軽量気泡コンクリートパネル1は、図1
(II)に示すように粉砕される。粉砕物1aの大きさや
形は任意である。図1(III )は上記粉砕物1aを酸性
土壌Aに混在させた状態を示す。 【0015】ここで、酸性土壌Aは畑や田圃、河川の堤
防や丘陵、崖、ゴルフ場のヘヤーウェイやグリーンであ
ってもよい。 【0016】上記のように、酸性土壌に軽量気泡コンク
リートパネル1の粉砕物1aを混在させることにより、
粉砕物1aから溶解する石灰によって酸性土壌を中和さ
せることができる。このため、作物や植物の生育に適し
た土壌に改良することができる。 【0017】特に、建物の解体によって発生する軽量気
泡コンクリートパネル1を用いることによって廃材の有
効利用を図ることができると共に、コストをかけずに酸
性土壌を中和させることができる。 【0018】また、粉砕物1aは空隙率が80%程度と
高いため、その内部に多量の空気や水分を含み、しか
も、粉砕物1aの混在によって土壌の通気性が向上し、
植物や作物の根から酸素や水分を充分に取り入れること
ができ、生育の良好な土壌を得ることができる。 【0019】さらに、粉砕物1aから石灰が徐々に溶解
するため、中和効果を長期にわたって維持させることが
できる。 【0020】ここで、粉砕物1aの混在に加え、窒素、
カリを追肥し、あるいは鉄、マンガン、ホウ素、銅、亜
鉛、木炭、竹炭などを必要に応じて加えるようにしても
よい。 【0021】実施の形態における酸性土壌の中和方法で
は、軽量気泡コンクリートパネル1の粉砕物1aを酸性
土壌に混在させるようにしたが、図2(I)に示すよう
に、上記粉砕物1aを網目構造のケーシング2内に充填
し、そのケーシング2を酸性土壌に形成された穴内に埋
込むようにして、粉砕物が消費した場合に、新しい粉砕
物と交換し得るようにしてもよい。あるいは、粉砕物1
aを円柱状、角柱状等のブロックに成形し、そのブロッ
ク体3を酸性土壌に形成された穴内に挿入して埋め込む
ようにしてもよい。 【0022】 【発明の効果】以上のように、この発明においては、石
灰質およびけい酸質を主成分とする軽量気泡コンクリー
トパネルの粉砕物を酸性土壌に混在させるようにしたの
で、粉砕物から溶解する石灰によって酸性土壌を中和さ
せることができると共に、建物の解体によって発生する
軽量気泡コンクリートパネルを利用することができるの
で、廃材の有効利用を図り、コストをかけずに酸性土壌
の改質を図ることができる。 【0023】また、粉砕物から石灰が徐々に溶解するた
め、中和効果を長期にわたって維持することができる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for modifying an acidic soil for neutralizing an acidified soil. [0002] In general, many crops and plants do not grow well on acidic soils. The main reasons for this are that the hydrogen ion concentration in the soil increases, the substitution base, especially lime, is deficient, and aluminum and manganese are leached out of the acidic soil and the roots are damaged. Have been. [0003] In order to eliminate such inconvenience, it is effective to apply lime to appropriately correct the pH of the soil. [0004] In the method of modifying acidic soil to which lime is applied, since the lime is strongly alkaline, the chemical action is so severe that it is affected when touched with bare hands, making it difficult to handle. It is. In addition, the rate of neutralizing the acidity of the soil is high, and there is a disadvantage that the soil volatilizes ammonia nitrogen immediately after application. [0006] Furthermore, when water permeates the soil during rainfall, lime is dissolved and lost, and there is also a disadvantage that lime is weak in holding power and the neutralizing effect cannot be maintained for a long time. In general, lightweight cellular concrete panels (A
LC panels) are widely used as wall materials for buildings.
These wall materials are often treated as waste materials by demolition of buildings, and are often disposed of. The inventor of the present invention paid attention to the fact that the light-weight aerated concrete panel to be discarded is mainly composed of calcareous and siliceous materials, and crushed the lightweight aerated concrete panel to mix it with the soil, so that the acidic soil was neutralized. He found something to make him peace. An object of the present invention is to make effective use of lightweight cellular concrete panels generated by demolition of a building.
An object of the present invention is to provide a method for modifying an acidic soil, which can neutralize the acidic soil without adding cost. [0009] In order to solve the above-mentioned problems, in the present invention, a lightweight cellular concrete panel mainly composed of calcareous and siliceous substances is crushed, and the crushed material is ground. That is, a mixed configuration was adopted. [0010] As described above, by mixing the crushed material of the lightweight cellular concrete panel into the soil, the acidic soil can be neutralized by the lime dissolved from the crushed material. For this reason, it is possible to effectively use the waste material, and it is possible to neutralize the acidic soil without increasing the cost. Further, the crushed product of the lightweight cellular concrete panel has a high porosity of about 80% and can hold air and moisture in the void, so that sufficient oxygen and moisture can be collected from the roots of the plant. And prevent the roots of the plant from growing poorly. Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1 (I), reference numeral 1 denotes a lightweight cellular concrete panel. As the lightweight cellular concrete panel 1, a panel produced by dismantling a building is used. The lightweight cellular concrete panel 1 is mainly composed of calcareous and siliceous materials, and the voids composed of cells and pores are about 80%. The lightweight cellular concrete panel 1 is shown in FIG.
Pulverized as shown in (II). The size and shape of the pulverized material 1a are arbitrary. FIG. 1 (III) shows a state in which the above-mentioned crushed material 1a is mixed in the acidic soil A. The acidic soil A may be a field, a paddy field, a river embankment, a hill, a cliff, a golf course, or a greenway. As described above, by mixing the crushed material 1a of the lightweight cellular concrete panel 1 with the acidic soil,
Acidic soil can be neutralized by lime dissolved from the crushed material 1a. Therefore, the soil can be improved to be suitable for growing crops and plants. In particular, by using the lightweight cellular concrete panel 1 generated by dismantling a building, it is possible to effectively use waste materials and to neutralize acidic soil without increasing costs. Further, since the crushed material 1a has a high porosity of about 80%, it contains a large amount of air and moisture therein, and the presence of the crushed material 1a improves the permeability of the soil.
Oxygen and moisture can be sufficiently taken in from the roots of plants and crops, and soil with good growth can be obtained. Further, since the lime is gradually dissolved from the ground material 1a, the neutralizing effect can be maintained for a long period of time. Here, in addition to the mixture of the pulverized material 1a, nitrogen,
Potash may be added to the top, or iron, manganese, boron, copper, zinc, charcoal, bamboo charcoal, etc. may be added as needed. In the method for neutralizing acidic soil according to the embodiment, the crushed material 1a of the lightweight cellular concrete panel 1 is mixed with the acid soil, but as shown in FIG. It may be filled in the casing 2 having a mesh structure, and the casing 2 may be embedded in a hole formed in the acidic soil so that when the crushed material is consumed, it can be replaced with a new crushed material. Or crushed material 1
a may be formed into a cylindrical or prismatic block, and the block 3 may be inserted and embedded in a hole formed in acidic soil. As described above, in the present invention, since the crushed material of the lightweight cellular concrete panel mainly composed of calcareous and siliceous materials is mixed with the acidic soil, it is dissolved from the crushed material. Lime can neutralize acidic soil, and lightweight aerated concrete panels generated by the demolition of buildings can be used, so effective use of waste materials and improvement of acidic soil without cost Can be planned. Further, since the lime is gradually dissolved from the pulverized material, the neutralizing effect can be maintained for a long time.

【図面の簡単な説明】 【図1】(I)乃至(III )は、この発明に係る酸性土
壌の改質方法の作業順序を段階的に示す図 【図2】(I)は図1(II)に示す粉砕物を収納したケ
ーシングを示す斜視図、(II)は図1(II)に示す粉砕
物から成るブロック体の斜視図 【符号の説明】 1 軽量気泡コンクリートパネル 1a 粉砕物 A 酸性土壌
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (I) to (III) are diagrams showing step by step the operation sequence of the method for modifying an acidic soil according to the present invention. FIG. 2 (I) is FIG. 2) Perspective view showing a casing accommodating the pulverized material shown in FIG. 1), (II) is a perspective view of a block body composed of the pulverized material shown in FIG. soil

Claims (1)

【特許請求の範囲】 【請求項1】 石灰質およびけい酸質を主成分とする軽
量気泡コンクリートパネルを粉砕し、その粉砕物を土壌
に混在させる酸性土壌の改質方法。
Claims: 1. A method for modifying an acidic soil in which a lightweight cellular concrete panel mainly composed of calcareous and siliceous substances is crushed, and the crushed material is mixed with the soil.
JP2001187732A 2001-06-21 2001-06-21 Method for reforming acidic soil Pending JP2003001227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001187732A JP2003001227A (en) 2001-06-21 2001-06-21 Method for reforming acidic soil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001187732A JP2003001227A (en) 2001-06-21 2001-06-21 Method for reforming acidic soil

Publications (1)

Publication Number Publication Date
JP2003001227A true JP2003001227A (en) 2003-01-07

Family

ID=19026985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001187732A Pending JP2003001227A (en) 2001-06-21 2001-06-21 Method for reforming acidic soil

Country Status (1)

Country Link
JP (1) JP2003001227A (en)

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