JPH07113075A - Soil conditioner and production thereof - Google Patents
Soil conditioner and production thereofInfo
- Publication number
- JPH07113075A JPH07113075A JP25955093A JP25955093A JPH07113075A JP H07113075 A JPH07113075 A JP H07113075A JP 25955093 A JP25955093 A JP 25955093A JP 25955093 A JP25955093 A JP 25955093A JP H07113075 A JPH07113075 A JP H07113075A
- Authority
- JP
- Japan
- Prior art keywords
- sodium hydroxide
- paper
- soil
- soil conditioner
- soil improvement
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は製紙工場等から大量に排
出される製紙汚泥の有効利用方法に係り、特に製紙汚泥
の焼却灰と水酸化ナトリウム水溶液との反応生成物であ
る新規な組成の土質改良材およびその製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for effectively utilizing a large amount of paper sludge discharged from a paper mill or the like, and more particularly to a novel composition of a reaction product of incineration ash of paper sludge and an aqueous sodium hydroxide solution. The present invention relates to a soil improvement material and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来、製紙工場等から排出される大量の
産業廃棄物である製紙汚泥は、年間３００万トン以上に
達するものとみられている。製紙汚泥のほとんどは焼却
され、その一部分についてはアスファルト、セメントお
よびゴム等の充填用材料として再利用されているが、現
状では９０％以上が産業廃棄物として埋め立て処分され
ている。2. Description of the Related Art Conventionally, a large amount of paper sludge, which is a large amount of industrial waste discharged from paper mills and the like, is expected to reach 3 million tons or more per year. Most of the papermaking sludge is incinerated, and a part of it is reused as a filling material for asphalt, cement, rubber, etc., but at present, 90% or more is landfilled as industrial waste.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、上述
した従来技術における問題点を解消するものであって、
大量に排出される産業廃棄物を減量化すると同時に、資
源化を行い土質改良材として有効に利用する方法を提供
することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems in the prior art,
An object of the present invention is to provide a method for reducing industrial waste discharged in large quantities, and at the same time, recycling the resources and effectively using them as soil improvement materials.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に本発明は、製紙工場等から大量に排出される製紙汚泥
を焼却した灰と、水酸化ナトリウム水溶液とを混練りし
てスラリー状となし、加熱処理を施した後、余剰の水酸
化ナトリウムを水洗除去し、自然乾燥等により乾燥させ
ることによって、多孔質で吸着性に優れた新規な組成の
土質改良材を得るものである。本発明は、酸化ケイ素お
よび酸化アルミニウムを主成分とする製紙汚泥の焼却灰
と、水酸化ナトリウム水溶液とを反応させて生成したゼ
オライト系の反応生成物を主成分として含有する土質改
良材であり、上記の製紙汚泥の焼却灰と、水酸化ナトリ
ウム水溶液とを反応させて生成したゼオライトは、フィ
リップサイト（Ｎａ6Ａｌ6Ｓｉ10Ｏ32・１２Ｈ2Ｏ）を
主成分とする土質改良材である。また本発明は、酸化ケ
イ素および酸化アルミニウムを主成分とする製紙汚泥の
焼却灰に、水酸化ナトリウム水溶液を加えて混練りして
スラリー状にする工程と、上記スラリーを加熱処理する
工程と、過剰の水酸化ナトリウムを水洗除去する工程
と、その後、自然乾燥等の手段で乾燥する工程を、少な
くとも含む土質改良材の製造方法である。製紙工場等か
ら排出される製紙汚でいを焼却した灰の成分組成は、製
紙原料の違いにより若干の相違はあるが、おおよそ表１
に示すとおりである。In order to achieve the above object, the present invention is to knead a large amount of papermaking sludge discharged from a papermaking plant or the like by incineration and an aqueous sodium hydroxide solution to form a slurry. None. After the heat treatment, the excess sodium hydroxide is washed off with water and dried by natural drying or the like to obtain a soil-improving material having a novel composition which is porous and excellent in adsorptivity. The present invention is an incineration ash of papermaking sludge containing silicon oxide and aluminum oxide as main components, and a soil-improving material containing a zeolite-based reaction product produced by reacting an aqueous sodium hydroxide solution as the main component, Zeolite produced by reacting the incinerated ash of the papermaking sludge with an aqueous sodium hydroxide solution is a soil improvement material containing phillipsite (Na 6 Al 6 Si 10 O 32 .12H 2 O) as a main component. Further, the present invention, the incineration ash of papermaking sludge mainly composed of silicon oxide and aluminum oxide, a step of adding an aqueous sodium hydroxide solution and kneading to form a slurry, a step of heat-treating the slurry, and excess Is a method for producing a soil-improving material, which includes at least a step of washing and removing sodium hydroxide with water and a step of thereafter drying by a means such as natural drying. The composition of the ash incinerated from papermaking soil discharged from paper mills, etc. varies slightly depending on the raw materials used for papermaking.
As shown in.
【０００５】[0005]
【表１】 [Table 1]
【０００６】このような製紙工場等から排出される製紙
汚泥を焼却した灰５０ｇに対し、水酸化ナトリウム８０
〜１６０ｇの割合で水１リットルに溶解した濃度の水酸
化ナトリウム水溶液とを混練りしてスラリー（ペース
ト）状となし、加熱処理した後、余剰の水酸化ナトリウ
ムを水洗除去して自然乾燥させると粉状、あるいは顆粒
状のゼオライト系に属するphillipsite：フィリップサ
イト（Ｎａ6Ａｌ6−Ｓｉ10Ｏ32・１２Ｈ2Ｏ）を主成分
として含有する新規な組成の土質改良材が得られる。[0006] For 50 g of ash obtained by incinerating papermaking sludge discharged from such a papermaking factory, 80% of sodium hydroxide is added.
~ 160 g of a sodium hydroxide aqueous solution having a concentration dissolved in 1 liter of water is kneaded to form a slurry (paste), and after heat treatment, excess sodium hydroxide is removed by washing with water and naturally dried. A soil improvement material having a novel composition containing phillipsite (Na 6 Al 6 —Si 10 O 32 · 12H 2 O), which belongs to powdery or granular zeolite system as a main component, can be obtained.
【０００７】[0007]
【作用】本発明の方法により製造される土質改良材は、
ゼオライト系に属するphillipsite：フィリップサイト
（Ｎａ6Ａｌ6Ｓｉ10Ｏ32・１２Ｈ2Ｏ）を主成分として
含有するものであって、多孔質で吸着性に優れているた
め、水・油等の液体を容易に吸着して含むことができる
特性がある。例えば、土木建設現場などから発生する建
設残土や建設汚泥に混合すると、ポゾラン（Pozzolan）
反応によりコンクリート化し適度の硬さを持つ固形物と
なり土砂を改善することができるので、従来、廃棄処分
されていた土砂に本発明の土質改良材を適用することに
より、種々の建設資材として再利用することか可能とな
る。また、本発明の新規な土質改良材は多孔質ゆえに肥
料・養分保持機能が強く、地力が高いため、農地に加え
ることにより肥沃度を高める土壌改良材として用いるこ
とができ、緑化用の残土に転換させることも可能であ
る。The soil improvement material produced by the method of the present invention is
Zeolite-based phillipsite: Contains phillipsite (Na 6 Al 6 Si 10 O 32 · 12H 2 O) as a main component and is porous and has excellent adsorbability. Is easily adsorbed and contained. For example, when mixed with construction soil and construction sludge generated from civil engineering construction sites, etc., Pozzolan
Since it can be converted to concrete by reaction to become a solid with a suitable hardness and improve soil and sand, it can be reused as various construction materials by applying the soil improvement material of the present invention to soil that has been conventionally discarded. It becomes possible to do it. Further, the novel soil improvement material of the present invention has a strong fertilizer / nutrition retention function because of its porous property and has high soil strength, so it can be used as a soil improvement material to increase fertility by adding it to agricultural land, and can be used as a residual soil for greening. It can also be converted.
【０００８】[0008]
【実施例】以下に本発明の実施例を挙げ、図面を用いて
さらに詳細に説明する。図１は、本発明の土質改良材の
製造方法の一例を示すフローチャートである。図に示す
ごとく、製紙工場等から発生する（ａ）製紙汚泥を焼却
した灰と、（ｂ）水酸化ナトリウム（ＮａＯＨ）水溶液
とを混合し、（ｃ）混練りしてスラリー状となし、
（ｄ）加熱処理を施した後、（ｅ）余剰のＮａＯＨを水
洗除去し、（ｆ）自然乾燥等の方法を用いて乾燥させる
ことにより、（ｇ）本発明の土質改良材が得られる。本
実施例においては、土質改良材を製造するための基礎実
験として、次に示す手順で行った。まず、製紙工場等か
ら発生した製紙汚泥を焼却した灰５０ｇを、容積１００
０ｍｌ（ミリ・リットル）の三角フラスコに採り、これ
に２〜４Ｎ（規定）の水酸化ナトリウム水溶液を１００
〜４００ｍｌ加えて十分に混練りしてスラリー状とし
た。なお、三角フラスコには液が蒸発しないように還流
冷却管を取り付け、ホットプレート上で、スラリーを約
９５℃で加熱処理を行った。なお、加熱時間は２〜１２
時間の範囲とした。加熱処理をした後、反応を終えたス
ラリーを取り出し、余剰の水酸化ナトリウムを水洗によ
り除去し、自然乾燥させて、表２に示す試料番号１〜４
５の粉末試料を得た。Embodiments of the present invention will be described below in more detail with reference to the drawings. FIG. 1 is a flow chart showing an example of a method for producing a soil improvement material of the present invention. As shown in the figure, (a) ash produced by incinerating papermaking sludge generated from a paper mill or the like and (b) sodium hydroxide (NaOH) aqueous solution are mixed, and (c) kneaded to form a slurry,
(D) After the heat treatment, (e) excess NaOH is washed off with water, and (f) dried by a method such as natural drying to obtain (g) the soil improvement material of the present invention. In this example, as a basic experiment for manufacturing the soil improvement material, the following procedure was performed. First, 50 g of ash obtained by incinerating papermaking sludge generated from a papermaking plant, etc.
Transfer to a 0 ml (milliliter) Erlenmeyer flask and add 2-4 N (normal) sodium hydroxide aqueous solution to 100 ml.
~ 400 ml was added and kneaded sufficiently to form a slurry. A reflux condenser was attached to the Erlenmeyer flask so as not to evaporate the liquid, and the slurry was heat-treated on a hot plate at about 95 ° C. The heating time is 2 to 12
It was a time range. After the heat treatment, the reaction-completed slurry is taken out, excess sodium hydroxide is removed by washing with water, and naturally dried to obtain sample numbers 1 to 4 shown in Table 2.
Five powder samples were obtained.
【０００９】[0009]
【表２】 [Table 2]
【００１０】上記の粉末試料を土壌標準分析・測定法に
より陽イオン交換容量（cation exchange capacity：Ｃ
ＥＣ）、および比表面積を測定したところ、表面吸着性
能が著しく高いことが判明した。また、Ｘ線回折法によ
り分析した結果、ゼオライト群に属するフィリップサイ
ト（Ｎａ6Ａｌ6Ｓｉ10Ｏ32・１２Ｈ2Ｏ）が生成されて
いることを確認した。 （１）陽イオン交換容量 陽イオン交換容量（ＣＥＣ）は、別名、塩基置換容量と
も呼ばれている。土壌のもつ負の電荷の総量を言い、陽
イオンを交換できる最大量を表わすものであり、土壌の
地力を評価する指標として広く用いられている。本実施
例で得られた土質改良材の陽イオン交換容量（ＣＥＣ）
の測定値は、製紙工場等から発生する製紙汚泥を焼却し
た灰、そのもの（未処理）では、２０ｍｅｑ（ミリ当
量）／１００ｇ程度であったのに対し、水酸化ナトリウ
ム水溶液を加えて加熱処理を施したものは、小さいもの
でも５７ｍｅｑ／１００ｇ、大きいものでは２００ｍｅ
ｑ／１００ｇ近くにも達した。このように、アルカリと
反応させることで、製紙工場等から大量に排出される製
紙汚泥を焼却した灰の陽イオン交換容量（ＣＥＣ）を、
約３倍から１０倍にも増大できることが確認された。表
３に、陽イオン交換容量（ＣＥＣ）の測定結果を示す。Cation exchange capacity (C) of the above powder sample was measured by a soil standard analysis and measurement method.
When the EC) and the specific surface area were measured, it was found that the surface adsorption performance was remarkably high. As a result of analysis by X-ray diffraction, it was confirmed that phillipsite (Na 6 Al 6 Si 10 O 32 .12H 2 O) belonging to the zeolite group was produced. (1) Cation Exchange Capacity The cation exchange capacity (CEC) is also known as a base substitution capacity. It refers to the total amount of negative charges that soil has, and represents the maximum amount of cations that can be exchanged. It is widely used as an index for evaluating soil soil fertility. Cation exchange capacity (CEC) of the soil improvement material obtained in this example
The measured value was about 20 meq (milliequivalent) / 100 g in the ash obtained by incinerating the papermaking sludge generated from a papermaking factory, etc. The small ones were 57 meq / 100g, and the larger ones were 200meq.
It reached close to q / 100g. In this way, by reacting with alkali, the cation exchange capacity (CEC) of ash obtained by incinerating a large amount of paper sludge discharged from paper mills, etc.
It was confirmed that it could be increased about 3 to 10 times. Table 3 shows the measurement results of the cation exchange capacity (CEC).
【００１１】[0011]
【表３】 [Table 3]
【００１２】表３に示す陽イオン交換容量（ＣＥＣ）の
測定値は、例えば市販されている天然産のゼオライト資
材である栃木産大谷石や、山形産のゼオライト質凝灰岩
を粉砕したもののＣＥＣ値が１３０〜１５０ｍｅｑ／１
００ｇ前後であるのに対して、本発明の土質改良材のＣ
ＥＣ値は最大約１．３倍大きい値が得られた。 （２）比表面積 粉体粒子の表面の性質に関する現象を調べるためには、
個々の粒子の大きさや分布よりも単位量の粉体中に含ま
れる粉体粒子表面の凹凸の発達、すなわち全粒子の表面
積の総和である比表面積を比較することが有効である。
比表面積の測定は、陽イオン交換容量（ＣＥＣ）の測定
値が大きいものについて、ＢＥＴ法（一点法）により測
定した結果、比表面積が大きい土質改良材が生成してい
ることを確認した。表４に、比表面積の測定結果を示
す。The measured cation exchange capacity (CEC) shown in Table 3 is, for example, the CEC value of crushed Otani stone from Tochigi, which is a commercially available natural zeolite material, and zeolitic tuff from Yamagata. 130-150 meq / 1
Although it is around 00 g, C of the soil improvement material of the present invention
A maximum EC value of about 1.3 times was obtained. (2) Specific surface area To investigate the phenomenon related to the surface properties of powder particles,
It is effective to compare the development of irregularities on the surface of powder particles contained in a unit amount of powder rather than the size and distribution of individual particles, that is, the specific surface area which is the sum of the surface areas of all particles.
The specific surface area was measured by the BET method (single-point method) with a large measured value of cation exchange capacity (CEC), and as a result, it was confirmed that a soil improvement material having a large specific surface area was produced. Table 4 shows the measurement results of the specific surface area.
【００１３】[0013]
【表４】 [Table 4]
【００１４】製紙工場等から発生する製紙汚泥を焼却し
た灰、そのものでは１．７ｍ2／ｇ程度であるのに対
し、水酸化ナトリウム水溶液を加えて加熱処理を施した
ものの非表面積は、最大５５ｍ2／ｇ程度にまで達して
おり、未処理のものと比較して最大３２倍にも比表面積
を増大できることが確認された。 （３）Ｘ線回折 水酸化ナトリウム水溶液を加えて加熱処理を施して得ら
れた試料の組成を、Ｘ線回折法により確認したところ、
phillipsite：フィリップサイト（Ｎａ6Ａｌ6Ｓｉ10Ｏ
32・１２Ｈ2Ｏ）と呼ばれるゼオイト群の中の１種の組
成物が形成されていることが確認された。表５に、Ｘ線
回折の結果を示す。The ash obtained by incinerating papermaking sludge generated from a papermaking factory or the like is about 1.7 m 2 / g in itself, whereas the non-surface area of the ash that has been heat-treated by adding an aqueous solution of sodium hydroxide is 55 m at maximum. It has been confirmed that the specific surface area is up to about 2 / g, and the specific surface area can be increased up to 32 times as compared with the untreated one. (3) X-ray diffraction The composition of the sample obtained by adding an aqueous solution of sodium hydroxide and performing heat treatment was confirmed by an X-ray diffraction method.
phillipsite: Phil 6 (Na 6 Al 6 Si 10 O
That one composition in the 32 · 12H 2 O) and Zeoito group called is formed was confirmed. Table 5 shows the results of X-ray diffraction.
【００１５】[0015]
【表５】 [Table 5]
【００１６】表５に示すＸ線の回折ピークの強度におい
て、フィリップサイトのピークが現われており、フィリ
ップサイトが生成されていることが判った。特に、２Ｎ
の水酸化ナトリウム水溶液にて加熱処理したものが最も
強く現われている。上記の陽イオン交換容量（ＣＥ
Ｃ）、比表面積、Ｘ線回折の３つの結果より、最も効率
的に製紙工場等から発生する製紙汚でいを焼却した灰か
ら土質改良材を製造するための処理方法は、製紙工場等
から発生する製紙汚でいを焼却した灰５０ｇを容積１０
００ｍｌの三角フラスコに採り、これに２Ｎの水酸化ナ
トリウム水溶液を４００ｍｌ加えたスラリーを約９５℃
で加熱処理した後、水洗いをして余剰のアルカリを除去
し、自然乾燥させたものが最も効率的に土質改良材に転
換できることが分かった。しかも、加熱の処理時間は、
長時間行ったものほど土質改良材への転換率が良く、本
実施例では最も加熱処理時間の長い１２時間行ったもの
が、最も効率的に土質改良材に転換できていることが確
認された。In the intensity of the X-ray diffraction peak shown in Table 5, the peak of phillipsite appeared and it was found that phillipsite was generated. Especially 2N
The one that was heat-treated with the sodium hydroxide aqueous solution of 1. Cation exchange capacity (CE
C), specific surface area, and X-ray diffraction results show that the most efficient treatment method for producing a soil improvement material from ash from incineration of papermaking stains generated from paper mills is from paper mills. Volume of 50g of ash produced by burning paper stains
Collect in a 00 ml Erlenmeyer flask and add 400 ml of 2N sodium hydroxide aqueous solution to a slurry at about 95 ° C.
It was found that after heat-treating at 1, the product was washed with water to remove excess alkali and naturally dried, and it could be most efficiently converted into a soil improvement material. Moreover, the heating processing time is
It was confirmed that the longer the time period was, the better the conversion rate to the soil improvement material was, and in this Example, the longest heat treatment time of 12 hours was the most efficient conversion to the soil improvement material. .
【００１７】[0017]
【発明の効果】本発明の製紙工場等から発生する製紙汚
でいを焼却した灰と水酸化ナトリウム水溶液を混合し加
熱処理した後、水洗いし自然乾燥して生成される土質改
良材は、陽イオン交換容量（ＣＥＣ）や比表面積が大き
いため、土質改良材のみならず各種の充填材料や吸着材
料に適用できる優れた特性を備えている。また、本発明
の土質改良材の製造方法は、産業廃棄物である製紙汚泥
の廃棄処分量を少なくすることができ、環境保全に役立
つと共に、限りある資源の有効活用が可能となる。ま
た、本発明の土質改良材は多孔質で優れた吸着性を有し
ており、土木建設現場などから発生する建設残土や建設
汚泥に混合することで土砂が改善され、再利用できる建
設資材に変換することも可能である。このため、従来は
廃棄処分されていたものが、本発明の土質改良材を適用
することにより建設資材として再利用することができ
る。さらに、吸着性を利用した効果として、機械用廃
油、家庭用廃油、工業用廃油の吸着硬化処理が可能とな
る。すなわち、本発明の土質改良材は極めて多孔質であ
るので、油分子自体を土質改良材の孔の中に吸着してし
まう作用を持っている。このため、油分子を吸着した土
質改良材は粉体状態を示し液状化しないため、べとつか
ず可逆性がないので、非常にクリーンな状態で廃油処理
ができ、環境保護にも寄与できる。また、本発明の土質
改良材は多孔質ゆえに、肥料・養分保持機能が強く、農
地土壌から肥料や農薬が流失するのを防ぐことも可能で
あり、生産費用を節減するだけでなく、肥料・農薬によ
る水質汚染も抑制することができる。このため、本発明
の土質改良材を農地に加えることにより、肥沃度を高め
る土壌改良材として緑化用残土に転換させることも可能
である。EFFECTS OF THE INVENTION The soil improving material produced by mixing the ash obtained by incinerating papermaking soil generated from a papermaking factory of the present invention with an aqueous solution of sodium hydroxide, heat-treating it, washing it with water and naturally drying it is Since it has a large ion exchange capacity (CEC) and a large specific surface area, it has excellent characteristics applicable not only to soil improvement materials but also to various filling materials and adsorbing materials. Further, the method for producing a soil improvement material according to the present invention can reduce the amount of paper sludge that is industrial waste to be disposed of, which helps to protect the environment and enables effective use of limited resources. Further, the soil improvement material of the present invention is porous and has excellent adsorptivity, and the soil is improved by mixing it with the construction residual soil or construction sludge generated from the civil engineering construction site or the like, which is a reusable construction material. It is also possible to convert. Therefore, what has been conventionally disposed of can be reused as a construction material by applying the soil improvement material of the present invention. Further, as an effect of utilizing the adsorptivity, it is possible to perform adsorption hardening treatment on machine waste oil, household waste oil, and industrial waste oil. That is, since the soil improvement material of the present invention is extremely porous, it has an action of adsorbing the oil molecules themselves into the pores of the soil improvement material. For this reason, the soil-improving material that has adsorbed oil molecules does not liquefy because it shows a powder state, and it is not sticky and has no reversibility, so it is possible to treat waste oil in a very clean state and contribute to environmental protection. Further, since the soil improvement material of the present invention is porous, it has a strong fertilizer / nutrient retention function, and it is also possible to prevent the fertilizer and the pesticide from being washed away from the agricultural soil, which not only saves the production cost but also the fertilizer / Water pollution due to pesticides can also be suppressed. Therefore, by adding the soil improvement material of the present invention to farmland, it is possible to convert it to residual soil for greening as a soil improvement material for improving fertility.
【図１】本発明の実施例で例示した土質改良材の製造工
程を示すフローチャート。FIG. 1 is a flowchart showing a manufacturing process of a soil improvement material exemplified in an embodiment of the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 栗林 恭嗣 東京都千代田区内幸町一丁目１番６号 日 本電信電話株式会社内 (72)発明者 中島 美鶴 東京都千代田区内幸町一丁目１番６号 日 本電信電話株式会社内 (72)発明者 白川 淳一 東京都台東区秋葉原５番８号 アイレック 技建株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kyobayashi Kyotsugu 1-6, Uchiyuki-cho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Mitsuru Nakajima 1-1-6, Uchiyuki-cho, Chiyoda-ku, Tokyo No. Japan Nippon Telegraph and Telephone Corporation (72) Inventor Junichi Shirakawa 5-8 Akihabara, Taito-ku, Tokyo Ailec Giken Co., Ltd.
Claims (3)
分とする製紙汚泥の焼却灰と、水酸化ナトリウム水溶液
との反応生成物であるゼオライトを主成分として含有し
てなることを特徴とする土質改良材。1. A soil improvement material comprising, as a main component, incineration ash of paper sludge containing silicon oxide and aluminum oxide as main components and zeolite as a reaction product of an aqueous sodium hydroxide solution. .
水酸化ナトリウム水溶液とを反応生成物であるゼオライ
トは、フィリップサイト（Ｎａ6Ａｌ6Ｓｉ10Ｏ32・１２
Ｈ2Ｏ）を主成分とするものであることを特徴とする土
質改良材。2. The incineration ash of papermaking sludge according to claim 1,
Zeolite, which is a reaction product of an aqueous sodium hydroxide solution, is a phillipsite (Na 6 Al 6 Si 10 O 32
H 2 O) as a main component, a soil improvement material.
分とする製紙汚泥の焼却灰に、水酸化ナトリウム水溶液
を加えて混練りしてスラリーを形成する工程と、該スラ
リーを加熱処理する工程と、余剰の水酸化ナトリウムを
水洗除去する工程と、乾燥する工程を、少なくとも含む
ことを特徴とする土質改良材の製造方法。3. A step of adding a sodium hydroxide aqueous solution to an incineration ash of paper sludge containing silicon oxide and aluminum oxide as main components and kneading to form a slurry, a step of heat-treating the slurry, and a surplus. 2. A method for producing a soil improvement material, which comprises at least a step of washing and removing sodium hydroxide of 1. and a step of drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25955093A JPH07113075A (en) | 1993-10-18 | 1993-10-18 | Soil conditioner and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25955093A JPH07113075A (en) | 1993-10-18 | 1993-10-18 | Soil conditioner and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07113075A true JPH07113075A (en) | 1995-05-02 |
Family
ID=17335675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25955093A Pending JPH07113075A (en) | 1993-10-18 | 1993-10-18 | Soil conditioner and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07113075A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100342552B1 (en) * | 2000-02-19 | 2002-06-28 | 임익철 | Method of ma nufacturing P.H progression material of a soil use for gangue and silica |
| KR100568931B1 (en) * | 2004-08-23 | 2006-04-07 | 한국건설기술연구원 | Lightweight Artificial Soil And Its Manufacturing Method By Using Sludge |
| CN101884262A (en) * | 2010-06-21 | 2010-11-17 | 滨州学院 | Method for improving coastal saline-alkali wetland by papermaking waste |
| CN114918238A (en) * | 2022-05-07 | 2022-08-19 | 中国科学院生态环境研究中心 | Resistance heating process for enhancing multiphase extraction and repair effects of DNAPLS (deoxyribonucleic acid/liquid plastics) polluted site |
-
1993
- 1993-10-18 JP JP25955093A patent/JPH07113075A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100342552B1 (en) * | 2000-02-19 | 2002-06-28 | 임익철 | Method of ma nufacturing P.H progression material of a soil use for gangue and silica |
| KR100568931B1 (en) * | 2004-08-23 | 2006-04-07 | 한국건설기술연구원 | Lightweight Artificial Soil And Its Manufacturing Method By Using Sludge |
| CN101884262A (en) * | 2010-06-21 | 2010-11-17 | 滨州学院 | Method for improving coastal saline-alkali wetland by papermaking waste |
| CN114918238A (en) * | 2022-05-07 | 2022-08-19 | 中国科学院生态环境研究中心 | Resistance heating process for enhancing multiphase extraction and repair effects of DNAPLS (deoxyribonucleic acid/liquid plastics) polluted site |
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