JPH0899090A - How to prevent muddy water - Google Patents
How to prevent muddy waterInfo
- Publication number
- JPH0899090A JPH0899090A JP19978795A JP19978795A JPH0899090A JP H0899090 A JPH0899090 A JP H0899090A JP 19978795 A JP19978795 A JP 19978795A JP 19978795 A JP19978795 A JP 19978795A JP H0899090 A JPH0899090 A JP H0899090A
- Authority
- JP
- Japan
- Prior art keywords
- water
- ground surface
- soluble polymer
- flows down
- generation
- 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
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
(57)【要約】
【課題】 雨水が流下する地表面から濁水が発生するに
あたり、現場での実施がしにくく、また効率的でない等
の課題があった。
【解決手段】 地表面に水溶性高分子、例えばカチオン
性のグアーガム、アルギン酸ナトリウム、またはノニオ
ン性あるいはカチオン性のポリビニルアルコール等を浸
透させて所定厚さの凝集層を形成する。水溶性高分子を
地表面に浸透させるだけの簡単かつ迅速な方法により、
雨水が凝集層の上を流下する際に微細土粒子を巻き込む
ことを極力回避して、雨水が流下する地表面から濁水が
発生するのを確実に防止することができるとともに、雨
水によって運ばれる土砂量を著しく減少することができ
る。(57) [Abstract] [Problem] When turbid water is generated from the surface of the surface where rainwater flows down, there are problems such as being difficult to implement on site and inefficient. A water-soluble polymer, such as a cationic guar gum, sodium alginate, or a nonionic or cationic polyvinyl alcohol, is permeated into the ground surface to form a cohesive layer having a predetermined thickness. By a simple and quick method that only penetrates the water-soluble polymer to the ground surface,
It is possible to prevent the inclusion of fine soil particles when rainwater flows down on the agglomeration layer as much as possible, and to reliably prevent the generation of turbid water from the surface on which rainwater flows down, and the sediment carried by rainwater. The amount can be significantly reduced.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、濁水の発生防止
方法に関し、特に、降雨時に雨水が地表面を流下する際
に微細土粒子を巻き込むことにより発生する濁水の発生
防止方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing the generation of muddy water, and more particularly to a method for preventing the generation of muddy water which is generated by entraining fine soil particles when rainwater flows down on the ground surface during rainfall.
【０００２】[0002]
【従来の技術】例えば、道路、宅造、ゴルフ場等の建設
現場における土工事中に降雨があると、雨水は微細土粒
子を巻き込みつつ掘削地表面を流下することにより濁水
が発生し、この濁水が市街地、水田、道路、湖沼等に流
下してこれらの環境を害するとともに、流速が低下した
場所では濁水によって運ばれた微細土砂が沈降し、濁水
流下が収まった後でも各所に堆積したままとなり、その
処理に多くの人手を要する等、濁水による環境破壊が社
会問題化している。2. Description of the Related Art For example, when rainfall occurs during earthwork at a construction site such as a road, a home building, or a golf course, rainwater flows down the excavated ground surface while entraining fine soil particles, and turbid water is generated. Flow into urban areas, paddy fields, roads, lakes and marshes, damaging these environments, and at locations where the flow velocity drops, fine sediment carried by turbid water settles and remains deposited at various locations even after the turbulent water flow stops. The environmental destruction caused by turbid water has become a social problem because it requires a lot of manpower for its treatment.
【０００３】また、かかる問題は、地崩れ地域や鉄道，
道路の法面等の、降雨時に雨水が流下する他の種々の地
表面についても指摘されている。Further, such a problem is caused by a landslide area, a railway,
It has also been pointed out about various other ground surfaces such as road slopes where rainwater flows down during rainfall.
【０００４】そして、これらの地表面から濁水が発生す
るのを未然に防止する対策として、従来より例えば以下
のような方法が実施されていた。 （１）地表面をローラなどによって締め固める。 （２）地表面を遮水シート，フィルムによって覆う。 （３）地表面に加水反応型ポリウレタン系を吹き付け
る。 （４）溜め池を造成して流下した濁水が全てこの部分に
集まるようにし、この溜め池内に微細土粒子を沈降させ
る。As a measure to prevent the generation of turbid water from the ground surface, the following method has been conventionally practiced. (1) The ground surface is compacted with a roller or the like. (2) Cover the ground surface with a water-blocking sheet or film. (3) Spraying a water-reactive polyurethane type on the ground surface. (4) A reservoir is created so that all the turbid water that flows down is collected in this part, and fine soil particles are allowed to settle in this reservoir.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら上記
（１）の方法では、天候に応じてその都度ローラで締め
固め作業を行うのは多大な労力と時間とを要するため、
特に土工事現場では実施しにくく、また土工事現場では
締め固めた地表面を再度掘削することになるため効率的
でない。（２）の方法は、面積の小さい地表面を覆うの
は容易であるが、面積の大きい地表面を覆うのは施工が
困難となる。（３）の方法は、吹き付け機械が特殊であ
り、また反応したゲル体は天日によって組織が壊され効
果が薄れるばかりか、風化した後に残留物が残り環境上
問題となる。（４）の方法は、濁水の発生そのものを防
止するものではなく、また溜め池を造成するにはこれに
適した地形を必要とするとともに、雨量が多い場合には
その全量を溜め池内に収容しきれない欠点があり、さら
に、特に土工事現場などにおいて採用する場合には工事
後は改めて埋め戻し・整地をする場合があり、その作業
に手間がかかる等の問題がある。However, in the above method (1), it takes a lot of labor and time to perform the compaction work with the roller each time depending on the weather.
In particular, it is difficult to carry out at the earthwork site, and at the earthwork site, the compacted ground surface will be excavated again, which is not efficient. According to the method (2), it is easy to cover the ground surface having a small area, but it is difficult to perform the construction to cover the ground surface having a large area. In the method (3), the spraying machine is special, and the reaction gel body not only loses its effect by being destroyed by the sun but also remains as a residue after weathering, which is an environmental problem. The method of (4) does not prevent the generation of turbid water itself, and it requires a suitable terrain to create a reservoir, and when the rainfall is heavy, the entire amount is stored in the reservoir. There is a drawback that it cannot be completed, and when it is adopted especially in the earth construction site, there is a problem that it may be necessary to refill and level the ground again after the construction, which is troublesome.
【０００６】従って、従来行なわれているいずれの方法
も経済的かつ有効な防止対策とは言えず、濁水の発生を
防止するための新しい対策が望まれている。Therefore, none of the conventional methods can be said to be economical and effective preventive measures, and new measures for preventing the generation of turbid water are desired.
【０００７】本発明者らは、以上の方法に替わる簡単な
濁水発生防止方法として、地表面を構成する土砂の微細
土粒子をある種の水溶性高分子で処理することにより、
雨水が地表面を流下する際に微細土粒子を巻き込むこと
を極力回避して、濁水の発生を防止、ないしは流下水に
よって運ばれる土砂量を著しく減少できることを見出し
た。As a simple method for preventing the generation of muddy water, which is an alternative to the above method, the present inventors treat fine soil particles of the earth and sand constituting the ground surface with a certain water-soluble polymer,
It was found that it is possible to prevent the inclusion of fine soil particles when rainwater flows down on the ground surface as much as possible to prevent the generation of turbid water or to significantly reduce the amount of sediment carried by the runoff water.
【０００８】すなわち、この発明は、簡易かつ迅速に実
施できる構成でありながら、雨水が流下する地表面から
濁水が発生するのを確実に防止することのできる濁水の
発生防止方法を提供することを目的とするものである。That is, the present invention provides a method for preventing the generation of muddy water, which has a structure that can be implemented simply and quickly, but which can surely prevent muddy water from being generated from the ground surface on which rainwater flows down. It is intended.
【０００９】[0009]
【課題を解決するための手段】この発明の濁水の発生防
止方法は、上記目的を達成するためになされたもので、
地表面に水溶性高分子、例えば、カチオン性のグアーガ
ム、またはアルギン酸ナトリウム、またはノニオン性あ
るいはカチオン性のポリビニルアルコール水溶液等を散
布することを特徴とするものである。The method for preventing the generation of muddy water according to the present invention has been made to achieve the above object.
A water-soluble polymer such as a cationic guar gum or sodium alginate, or a nonionic or cationic polyvinyl alcohol aqueous solution or the like is sprayed on the ground surface.
【００１０】[0010]
【発明の実施の形態】この発明に用いる水溶液高分子と
しては、例えは、微細土粒子の凝集効果を高める水溶性
高分子としての、メチルセルロース（ＭＣ）、ヒドロキ
シエチルセルロース（ＨＥＣ）、ヒドロキシエチルメチ
ルセルロース（ＨＥＭＣ）等のセルロース誘導体、グア
ーガム、キサンタンガム、アラビアゴム等の天然ガム、
ポリビニルアルコール、またはそれらのカチオンまたは
アニオン変性品等や、土壌の表面に被膜を形成して濁水
の発生を防止する水溶性高分子としての、アルギン酸ナ
トリウム等を用いることが好ましい。BEST MODE FOR CARRYING OUT THE INVENTION As the aqueous solution polymer used in the present invention, for example, methyl cellulose (MC), hydroxyethyl cellulose (HEC), hydroxyethyl methyl cellulose ( Cellulose derivatives such as HEMC), natural gums such as guar gum, xanthan gum and gum arabic,
It is preferable to use polyvinyl alcohol, a cation- or anion-modified product thereof, or sodium alginate as a water-soluble polymer that forms a film on the surface of soil to prevent generation of turbid water.
【００１１】そして、特に好ましくは、これらの水溶性
高分子のうち、カチオン性グアーガム、アルギン酸ナト
リウム、またはノニオン性若しくはカチオン性ビニルア
ルコールを使用する。Particularly preferably, among these water-soluble polymers, cationic guar gum, sodium alginate, or nonionic or cationic vinyl alcohol is used.
【００１２】また、これらと、カチオン性の樹脂エマル
ジョン、または撥水性のシリコーン樹脂、フッ素樹脂、
シリコーンフッ素樹脂のエマルジョンタイプなどとを併
用することもできる。In addition, a cationic resin emulsion, a water-repellent silicone resin, a fluororesin,
It is also possible to use together with an emulsion type of silicone fluororesin.
【００１３】そして上記水溶性高分子の配合量は、散布
液中に固形分で０．１〜５．０％含有させることが好ま
しい。これを地表面に散布するには、例えば農薬の散布
や、液体肥料の散布の際に従来より用いられている通常
の水溶液散布装置を用いて行うことができる。地表面に
対する水溶性高分子の散布量は、施工する地表面の乾燥
状態や土砂の粒径、表面平滑度等を鑑みて適宜設計され
るが、上記の固形分範囲を含有するカチオン性グアーガ
ムまたはアルギン酸ナトリウム水溶液を、地表面に対し
て０．２〜５ l／ｍ2 程度散布するのが好ましい。０．
２ l／ｍ2 を下回った場合には、微細土粒子の凝集効果
を十分に得ることが出来ず、また５ l／ｍ2 を上回った
場合には、特に濁水の発生防止効果が向上しないだけで
なく、乾燥時間がいたずらに長くなってしまい逆効果に
なる。The amount of the above water-soluble polymer is preferably 0.1 to 5.0% in solid content in the spray liquid. For spraying this on the ground surface, for example, an ordinary aqueous solution spraying device which has been conventionally used for spraying pesticides and liquid fertilizers can be used. The amount of the water-soluble polymer sprayed on the ground surface is appropriately designed in consideration of the dry state of the ground surface to be constructed, the particle size of the earth and sand, the surface smoothness, etc., but the cationic guar gum containing the above solid content range or It is preferable to spray an aqueous solution of sodium alginate on the ground surface in an amount of about 0.2 to 5 l / m 2 . 0.
If it is less than 2 l / m 2 , the effect of agglomerating fine soil particles cannot be sufficiently obtained, and if it is more than 5 l / m 2 , the effect of preventing muddy water is not particularly improved. Not only that, but the drying time is unnecessarily long, which is counterproductive.
【００１４】なお、散布する地表面は、自由水がなくな
る程度まで乾燥した後、散布処理することが望ましい。The ground surface to be sprayed is preferably dried to such an extent that free water is exhausted and then sprayed.
【００１５】散布の実施時間は、天気情報などによって
予測される降雨の２４時間以上前に行うのが望ましい
が、状況によっては、降雨直前に実施することも可能で
ある。前記散布を実施する地表面の条件としては、比較
的平滑で堅い面がよいので、前処理としてローラなどに
よって締め固め、平坦化した後散布することが望まれる
が、前処理を行わずに散布することも可能である。It is desirable that the spraying is carried out 24 hours or more before the rain predicted by weather information or the like, but it may be carried out immediately before the rain depending on the situation. As the condition of the ground surface for carrying out the above-mentioned spraying, since a relatively smooth and hard surface is good, it is desirable to compact it with a roller etc. as a pretreatment and then flatten it before spraying it, but spraying without pretreatment It is also possible to do so.
【００１６】[0016]
【実施例】以下この発明の濁水の発生防止方法を実施例
および比較例によりさらに詳細に説明するが、この発明
はこれらに限定されるものではない。なお、例中の部お
よび％はそれぞれ重量部と重量％を示す。EXAMPLES The method for preventing the generation of muddy water of the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto. In addition, part and% in an example show a weight part and weight%, respectively.
【００１７】＜実施例１＞図１に示すように、長さ１６
０cm、幅５０cm、厚さ８cm、傾斜度４：１の勾配を持っ
た土砂床１の上部に散水管２を配置し、下端にロート３
を介して２０ lのポリタンク４を接続した実験装置を作
り、土砂床１の上面に自然含水比２０％程度の関東ロー
ム５を約５cmの厚さで敷設した。<Embodiment 1> As shown in FIG.
0 cm, width 50 cm, thickness 8 cm, slope 4: 1 with a sprinkler pipe 2 above the sand bed 1 and a funnel 3 at the bottom.
A 20 l plastic tank 4 was connected to the experimental device to lay a Kanto loam 5 having a natural water content of about 20% on the upper surface of the earth and sand floor 1 with a thickness of about 5 cm.
【００１８】土砂敷設後、熊手で平坦に均しただけの試
料Ｉと、５kgの鉄製ローラで固めた試料IIの表面に、そ
れぞれ、固形分０．５％を含有するカチオン性グアーガ
ム（商品名：ジャガーＣＰ−１３ 三晶株式会社製）水
溶液を１．０ l／ｍ2 散布した。２４時間経過後散水管
２を通して、５ l／ｍ2 （散布時間５分）の水を散水
し、流下する水をポリタンク４に捕集して水の濁度と、
流出土砂量を測定した。 なお、土砂床１の表面には土
砂全体が滑り落ちるのを防止するため、２０cm毎に高さ
１cmの堰を横設してある。After laying the earth and sand, the surface of Sample I, which was just leveled flat with a rake, and Sample II, which was solidified with a 5 kg iron roller, each contained 0.5% solid content of cationic guar gum (trade name: An aqueous solution of Jaguar CP-13 (manufactured by Sansho Co., Ltd.) was sprayed at 1.0 l / m 2 . After 24 hours, 5 l / m 2 (spraying time 5 minutes) of water was sprinkled through the sprinkling pipe 2, and the water that flowed down was collected in the plastic tank 4 to obtain turbidity of the water.
The amount of runoff sediment was measured. In addition, in order to prevent the whole earth and sand from sliding down, a weir having a height of 1 cm is installed laterally every 20 cm on the surface of the earth and sand floor 1.
【００１９】また、濁度はＡＮＡＬＩＴＥ濁度計（セン
トラル科学株式会社製）を用い、ポリタンク４内に流入
した水の中心部分で測定した。単位はカオリン換算でｍ
ｇ／l（ppm ）であり、この方法では水の濁度は０ppm
になる。The turbidity was measured using an ANALITE turbidimeter (manufactured by Central Science Co., Ltd.) in the central portion of the water flowing into the plastic tank 4. Unit is m in kaolin conversion
g / l (ppm), and in this method the turbidity of water is 0 ppm
become.
【００２０】＜実施例２＞図１に示す実験装置を用い
て、実施例１と全く同一の条件で作成された試料I，II
の表面に固形分１．０％を含有するカチオン性ヒドロキ
シエチルセルロース（商品名：カチナールＨＣ−２００
東邦化学工業株式会社製）水溶液１ l／ｍ2 を均一に
散布した。実施例１と同様に２４時間経過後、散水管２
を通して５l／ｍ2 の水を５分間かけて散水し、流下す
る水をポリタンク４に捕集して水の濁度と、流出土砂量
を測定した。Example 2 Samples I and II prepared using the experimental apparatus shown in FIG. 1 under exactly the same conditions as in Example 1.
Cationic Hydroxyethyl Cellulose containing 1.0% solids on its surface (trade name: Katinal HC-200
An aqueous solution (1 l / m 2 manufactured by Toho Chemical Industry Co., Ltd.) was uniformly sprayed. After the lapse of 24 hours as in Example 1, the sprinkling pipe 2
5 l / m 2 of water was sprinkled over the course of 5 minutes, and the water that flowed down was collected in the plastic tank 4, and the turbidity of the water and the amount of sediment discharged were measured.
【００２１】＜実施例３＞図１に示す実験装置を用い
て、実施例１と全く同じ条件で作成した試料I ，IIの表
面に固形分０．１％を含有するアルギン酸ナトリウム
（商品名：アルギン酸ナトリウム 君津化学株式会社
製）水溶液１．５ l／ｍ2 を均一に散布した。実施例１
と同様に２４時間経過後、散水管２を通して５ l／ｍ2
の水を５分間かけて散水し、流下する水をポリタンク４
に捕集して水の濁度と、流出土砂量を測定した。<Example 3> Using the experimental apparatus shown in FIG. 1, the samples I and II prepared under exactly the same conditions as in Example 1 contained sodium alginate containing 0.1% of solid content on the surface (trade name: An aqueous solution (sodium alginate, Kimitsu Chemical Co., Ltd.) of 1.5 l / m 2 was uniformly sprayed. Example 1
After 24 hours in the same manner as above, through the sprinkler pipe 2 5 l / m 2
Water is sprayed over 5 minutes, and the water that flows down is in a plastic tank 4.
The turbidity of water and the amount of sediment discharged were measured.
【００２２】＜実施例４＞図１に示す実験装置を用い
て、関東ロームに替えて自然含水比２０％程度の堆積性
赤土５を約５ｃｍの厚さで敷設した。試料I ，IIの表面
に固形分２．０％を含有するカチオン性ポリビニルアル
コール（商品名：Ｃ−２０ 信越化学工業株式会社製）
水溶液１ l／ｍ2 を均一に散布した。実施例１と同様に
２４時間経過後、散水管２を通して５ l／ｍ2 の水を５
分間かけて散水し、流下する水をポリタンク４に捕集し
て水の濁度と、流出土砂量を測定した。<Example 4> Using the experimental apparatus shown in FIG. 1, a sedimentary red soil 5 having a natural water content of about 20% was laid in a thickness of about 5 cm in place of the Kanto loam. Cationic polyvinyl alcohol containing 2.0% solids on the surface of Samples I and II (trade name: C-20 manufactured by Shin-Etsu Chemical Co., Ltd.)
An aqueous solution of 1 l / m 2 was evenly dispersed. After 24 hours, 5 l / m 2 of water was passed through the sprinkler tube 2 as in Example 1.
Water was sprinkled over the course of time, and the water that flowed down was collected in a plastic tank 4 to measure the turbidity of the water and the amount of sediment.
【００２３】＜比較例１＞図１に示す実験装置を用い
て、実施例１〜３と全く同じ条件で作成した関東ローム
からなる未処理の試料I ，IIの表面に散水管を通して５
l／ｍ2 の水を５分間かけて散水し、流下する水をポリ
タンク４に捕集して水の濁度と、流出土砂量を測定し
た。<Comparative Example 1> Using the experimental apparatus shown in FIG. 1, the untreated samples I and II made of Kanto loam prepared under exactly the same conditions as in Examples 1 to 3 were passed through a water sprinkling pipe 5
Water of 1 / m 2 was sprinkled over 5 minutes, and the water that flowed down was collected in the plastic tank 4 to measure the turbidity of the water and the amount of sediment.
【００２４】＜比較例２＞図１に示す実験装置を用い
て、実施例４と全く同じ条件で作成した堆積性赤土から
なる未処理の試料I ，IIの表面に散水管２を通して５ l
／ｍ2 の水を５分間かけて散水し、流下する水をポリタ
ンク４に捕集して水の濁度と、流出土砂量を測定した。<Comparative Example 2> Using the experimental apparatus shown in FIG. 1, 5 l of the untreated samples I and II made of sedimentary red soil, which were prepared under exactly the same conditions as in Example 4, were passed through the sprinkling pipe 2 to obtain 5 l.
/ M 2 of water was sprinkled over 5 minutes, the water that flowed down was collected in the plastic tank 4, and the turbidity of the water and the amount of sediment discharged were measured.
【００２５】以上の実施例１〜４及び、比較例１〜２の
実験結果を次の表１に示す。The experimental results of Examples 1 to 4 and Comparative Examples 1 and 2 are shown in Table 1 below.
【００２６】[0026]
【表１】 以上の表に示す結果から明らかなように、水溶性高分子
としてのカチオン性グアーガム、アルギン酸ナトリウ
ム、カチオン性のポリビニルアルコールで処理した地表
面からの流出土砂量は、未処理の地表面からの流出土砂
量に比べて極めて少なく、また、流下した水の濁度も極
度に低下していることが判明した。[Table 1] As is clear from the results shown in the above table, the amount of sediment discharged from the ground surface treated with cationic guar gum, sodium alginate, and cationic polyvinyl alcohol as water-soluble polymers is the amount of runoff from the untreated ground surface. It was found that the amount of sediment was extremely small and the turbidity of the water that flowed down was extremely low.
【００２７】[0027]
【発明の効果】以上のように、この発明の濁水の発生防
止方法は、降雨時に雨水が流下する地表面に、水溶性高
分子としてのカチオン性のグアーガム、アルギン酸ナト
リウム、またはノニオン性あるいはカチオン性のポリビ
ニルアルコール等を散布するだけの簡単かつ迅速な方法
により、雨水が地表面を流下する際に微細土粒子を巻き
込むことを極力回避して、雨水が流下する地表面から濁
水が発生するのを確実に防止することができるととも
に、雨水によって運ばれる土砂量を著しく減少すること
ができる。INDUSTRIAL APPLICABILITY As described above, the method for preventing the generation of turbid water according to the present invention is such that cationic guar gum as a water-soluble polymer, sodium alginate, or a nonionic or cationic agent is used as a water-soluble polymer on the ground surface where rainwater flows down during rainfall. With a simple and quick method of spraying polyvinyl alcohol, etc., it is possible to avoid the inclusion of fine soil particles when rainwater flows down on the ground surface as much as possible, and to prevent the generation of muddy water from the ground surface where rainwater flows down. It can be reliably prevented, and the amount of sediment carried by rainwater can be significantly reduced.
【００２８】したがって、この発明は、土工事現場、地
崩れ地域、鉄道，道路の法面などの雨水が流下する地表
面において、降雨による濁水の発生を未然に防止し、濁
水による周囲の環境破壊や地盤の崩壊を防止する上で好
適である。Therefore, the present invention prevents the generation of turbid water due to rainfall on the ground surface such as earthworks, landslide areas, railroads, and road slopes where rainwater flows down, thereby damaging the surrounding environment. It is suitable for preventing the ground from collapsing.
【図１】実施例及び比較例に用いた実験装置の説明図で
ある。FIG. 1 is an explanatory diagram of an experimental device used in Examples and Comparative Examples.
フロントページの続き (72)発明者 西林 清茂 東京都清瀬市下清戸４丁目640番地 株式 会社大林組技術研究所内 (72)発明者 上野 孝之 東京都清瀬市下清戸４丁目640番地 株式 会社大林組技術研究所内Front page continued (72) Inventor Kiyoshige Nishibayashi 4-640 Shimoseido, Kiyose-shi, Tokyo Inside Obayashi Technical Research Institute, Inc. (72) Inventor Takayuki Ueno 4-640 Shimoseido, Kiyose-shi, Tokyo Within Obayashi Technical Research Institute
Claims (4)
高分子を散布し、流下する雨水の汚濁を防止することを
特徴とする濁水の発生防止方法。1. A method for preventing generation of muddy water, which comprises spraying a water-soluble polymer on the ground surface on which rainwater flows down during rainfall to prevent pollution of the rainwater flowing down.
ムであることを特徴とする請求項１に記載の濁水の発生
防止方法。2. The method for preventing generation of muddy water according to claim 1, wherein the water-soluble polymer is a cationic guar gum.
ムであることを特徴とする請求項１に記載の濁水の発生
防止方法。3. The method for preventing turbid water generation according to claim 1, wherein the water-soluble polymer is sodium alginate.
カチオン性ポリビニルアルコールであることを特徴とす
る請求項１に記載の濁水の発生防止方法。4. The method for preventing generation of muddy water according to claim 1, wherein the water-soluble polymer is a nonionic or cationic polyvinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19978795A JP3529200B2 (en) | 1994-08-04 | 1995-08-04 | How to prevent turbid water |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18366694 | 1994-08-04 | ||
| JP6-183666 | 1994-08-04 | ||
| JP19978795A JP3529200B2 (en) | 1994-08-04 | 1995-08-04 | How to prevent turbid water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0899090A true JPH0899090A (en) | 1996-04-16 |
| JP3529200B2 JP3529200B2 (en) | 2004-05-24 |
Family
ID=26502001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19978795A Expired - Lifetime JP3529200B2 (en) | 1994-08-04 | 1995-08-04 | How to prevent turbid water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3529200B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007204732A (en) * | 2006-05-31 | 2007-08-16 | Ooba:Kk | Method for controlling topsoil runoff |
| JP2008019630A (en) * | 2006-07-13 | 2008-01-31 | Railway Technical Res Inst | Mud prevention method |
| CN105189699A (en) * | 2012-10-23 | 2015-12-23 | 罗地亚经营管理公司 | Method for preventing soil erosion |
-
1995
- 1995-08-04 JP JP19978795A patent/JP3529200B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007204732A (en) * | 2006-05-31 | 2007-08-16 | Ooba:Kk | Method for controlling topsoil runoff |
| JP2008019630A (en) * | 2006-07-13 | 2008-01-31 | Railway Technical Res Inst | Mud prevention method |
| CN105189699A (en) * | 2012-10-23 | 2015-12-23 | 罗地亚经营管理公司 | Method for preventing soil erosion |
| JP2016504423A (en) * | 2012-10-23 | 2016-02-12 | ローディア オペレーションズ | Preventing soil erosion |
| US9884994B2 (en) | 2012-10-23 | 2018-02-06 | Rhodia Operations | Method for preventing soil erosion |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3529200B2 (en) | 2004-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Beuselinck et al. | Characteristics of sediment deposits formed by intense rainfall events in small catchments in the Belgian Loam Belt | |
| Lentz et al. | Furrow irrigation water‐quality effects on soil loss and infiltration | |
| Pan et al. | Effectiveness of grass strips in trapping suspended sediments from runoff | |
| Legret et al. | Simulation of heavy metal pollution from stormwater infiltration through a porous pavement with reservoir structure | |
| EA014318B1 (en) | Hydrophobic composites and particulates and applications thereof | |
| Kløve | Erosion and sediment delivery from peat mines | |
| Roa-Espinosa et al. | Sediment and runoff control on construction sites using four application methods of polyacrylamide mix | |
| US3118832A (en) | Control of silt load and scouring in flowing streams | |
| Scott et al. | Water quality impacts of tile drains in shallow, sloping, structured soils as affected by manure application | |
| Dendy et al. | Sediment trap efficiency of a small reservoir | |
| JPH0899090A (en) | How to prevent muddy water | |
| Alsanad | Novel biopolymer treatment for wind induced soil erosion | |
| Ackerly | False causality in the Hohokam collapse | |
| JP3015701B2 (en) | How to prevent turbid water | |
| Zenz et al. | Environmental impacts of land application of sludge | |
| Ben‐Hur et al. | Exchangeable Na, polymer, and water quality effects on water infiltration and soil loss | |
| US4678376A (en) | Method of constructing means for directing or holding water | |
| Sulaiman et al. | Reducing The Soil Erosion by Improving Infiltration Rate of Sprinkler Irrigation Under Laboratory Conditions | |
| Siddiqi | Cost, effectiveness and utility of polymer soil stabilizers. | |
| JPH08192167A (en) | How to prevent muddy water | |
| Succarieh | Control of Dust Emissions from unpaved roads | |
| JPH1180727A (en) | Soil surface stabilization method | |
| JP2007204732A (en) | Method for controlling topsoil runoff | |
| Grass et al. | Soil sediment deposits in subsurface drains | |
| JP2589236B2 (en) | Construction method of surface layer of soil ground |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040224 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080305 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090305 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100305 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100305 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110305 Year of fee payment: 7 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110305 Year of fee payment: 7 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120305 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130305 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130305 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140305 Year of fee payment: 10 |
|
| EXPY | Cancellation because of completion of term |