JPH0474592A - Water treatment method - Google Patents
Water treatment methodInfo
- Publication number
- JPH0474592A JPH0474592A JP2190004A JP19000490A JPH0474592A JP H0474592 A JPH0474592 A JP H0474592A JP 2190004 A JP2190004 A JP 2190004A JP 19000490 A JP19000490 A JP 19000490A JP H0474592 A JPH0474592 A JP H0474592A
- Authority
- JP
- Japan
- Prior art keywords
- water
- gum
- mixture
- added
- soluble aluminum
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims description 16
- 239000000203 mixture Substances 0.000 claims abstract description 25
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920002907 Guar gum Polymers 0.000 claims abstract description 9
- 239000000665 guar gum Substances 0.000 claims abstract description 9
- 235000010417 guar gum Nutrition 0.000 claims abstract description 9
- 229960002154 guar gum Drugs 0.000 claims abstract description 9
- 229920000161 Locust bean gum Polymers 0.000 claims abstract description 8
- 235000004298 Tamarindus indica Nutrition 0.000 claims abstract description 8
- 240000004584 Tamarindus indica Species 0.000 claims abstract description 8
- 235000010420 locust bean gum Nutrition 0.000 claims abstract description 8
- 239000000711 locust bean gum Substances 0.000 claims abstract description 8
- 229920001285 xanthan gum Polymers 0.000 claims description 17
- 239000000230 xanthan gum Substances 0.000 claims description 10
- 235000010493 xanthan gum Nutrition 0.000 claims description 10
- 229940082509 xanthan gum Drugs 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 11
- 238000003756 stirring Methods 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 8
- 238000005189 flocculation Methods 0.000 abstract description 6
- 230000016615 flocculation Effects 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 12
- 239000008394 flocculating agent Substances 0.000 description 8
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 229920001059 synthetic polymer Polymers 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 150000004676 glycans Chemical class 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 229920001282 polysaccharide Polymers 0.000 description 3
- 239000005017 polysaccharide Substances 0.000 description 3
- 235000010413 sodium alginate Nutrition 0.000 description 3
- 239000000661 sodium alginate Substances 0.000 description 3
- 229940005550 sodium alginate Drugs 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000003389 potentiating effect Effects 0.000 description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 244000061458 Solanum melongena Species 0.000 description 1
- 235000002597 Solanum melongena Nutrition 0.000 description 1
- 241000589636 Xanthomonas campestris Species 0.000 description 1
- FHKPLLOSJHHKNU-INIZCTEOSA-N [(3S)-3-[8-(1-ethyl-5-methylpyrazol-4-yl)-9-methylpurin-6-yl]oxypyrrolidin-1-yl]-(oxan-4-yl)methanone Chemical compound C(C)N1N=CC(=C1C)C=1N(C2=NC=NC(=C2N=1)O[C@@H]1CN(CC1)C(=O)C1CCOCC1)C FHKPLLOSJHHKNU-INIZCTEOSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000011850 desserts Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000003132 food thickener Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 229920001206 natural gum Polymers 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 235000013580 sausages Nutrition 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は水処理方法に関し、殊に河川、湖沼などにおけ
る架橋、護岸などの土木工事や砂利採取作業の際に発生
する泥排水、あるいは海域での土木工事に於いて発生す
る泥水の処理において、凝集処理での処理効果並びに環
境に対する安全性に優れる水処理方法を提供することを
目的とするものである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a water treatment method, particularly mud drainage generated during civil engineering works such as bridges and seawalls in rivers, lakes, etc., and gravel extraction work, or water treatment methods. The purpose of this invention is to provide a water treatment method that has excellent coagulation treatment effects and environmental safety in the treatment of muddy water generated during civil engineering work.
(従来の技術)
従来、水処理方法としてポリ塩化アルミニウム、硫酸ア
ルミニウム、塩化アルミニウム等の無機凝集剤あるいは
ポリアクリルアミド系、ポリアミン系等の有機合成高分
子凝集剤を使用した凝集処理方法が多用されている。(Prior art) Conventionally, as a water treatment method, flocculation treatment methods using inorganic flocculants such as polyaluminum chloride, aluminum sulfate, and aluminum chloride, or organic synthetic polymer flocculants such as polyacrylamide-based and polyamine-based flocculants have been frequently used. There is.
しかしながら、河川、湖沼などにおける土木工事、ある
いは海域での工事に於いては、凝集薬剤の残留問題に起
因する環境への安全性、汚染等の問題があり、その薬剤
の選定が重要となり、その効果に於いても満足し得るも
のではなかった。However, in civil engineering work in rivers, lakes, etc., or construction work in the sea, there are issues such as environmental safety and pollution caused by residual flocculants, and the selection of the agent is important. The effect was also not satisfactory.
即ち、土木工事等に於いて発生する汚水は、一般に鉱物
質微細粒子よりなり、これの処理には硫酸アルミニウム
等の無機凝集剤とポリアクリルアミド等の有機合成高分
子凝集剤との併用による方法が最も凝集効果が優れてい
ることはよく知られているが、有機合成高分子凝集剤は
その分解性が悪く、環境汚染の問題より現在殆ど使用で
きないのが現状である。In other words, sewage generated during civil engineering works, etc. generally consists of fine mineral particles, and a method for treating this is a combination of an inorganic flocculant such as aluminum sulfate and an organic synthetic polymer flocculant such as polyacrylamide. Although it is well known that organic synthetic polymer flocculants have the best flocculating effect, they have poor decomposition properties and are currently almost unusable due to environmental pollution problems.
また、無機凝集剤単独使用でこの処理を行うと、添加量
が多量に必要なばかりでなく、多量添加を行っても充分
な処理効果が得られない。Furthermore, if this treatment is carried out using an inorganic flocculant alone, not only a large amount is required, but even if a large amount is added, a sufficient treatment effect cannot be obtained.
また、安全無害な天然高分子凝集剤として、例えばアル
ギン酸ナトリウム、カルボキシメチルセルロース等が知
られているが、凝集効果が小さく実用化されていない。Further, safe and harmless natural polymer flocculants such as sodium alginate and carboxymethyl cellulose are known, but their flocculating effects are small and they have not been put to practical use.
(発明が解決しようとする課題)
本発明者らはこのような実情に鑑み、安全無害で環境へ
の汚染がなく、また土木工事廃水等の鉱物質微細粒子を
含む廃水処理において優れた処理効果を有する凝集剤を
見い出すべく、各種の薬剤を使用して検討を行った結果
、食品類の増粘、保水剤として一般に使用され、安全無
害であって環境への汚染が極めて軽微なキサンタンガム
を使用し、これと他のガム類及び水溶性アルミニウム塩
との特定の組み合わせにより、優れた凝集効果が得られ
ることを見い出し本発明を完成させるに至ったものであ
る。(Problems to be Solved by the Invention) In view of the above circumstances, the present inventors have developed a method that is safe, harmless, does not pollute the environment, and has excellent treatment effects in the treatment of wastewater containing fine mineral particles such as civil engineering wastewater. In order to find a flocculant that has this property, we investigated using various agents and found that we used xanthan gum, which is generally used as a food thickener and water retention agent, is safe and harmless, and has very little environmental pollution. However, it was discovered that an excellent agglomerating effect can be obtained by a specific combination of this with other gums and water-soluble aluminum salts, leading to the completion of the present invention.
(課題を解決するための手段)
即ち本発明は、キサンタンガムとグアガム、ローカスト
ビーンガムまたはタマリンドから選ばれたガム類との混
合物と水溶性アルミニウム塩とを使用することからなる
水処理方法に関する。(Means for Solving the Problems) That is, the present invention relates to a water treatment method comprising using a mixture of xanthan gum and a gum selected from guar gum, locust bean gum or tamarind, and a water-soluble aluminum salt.
(作 用)
本発明に使用するキサンタンガムとは、発酵多糖類の一
種であ リ、 微生物キサント干ナス・キャンペストリ
ス(Xanthomonas campestris)
がブドウ糖類を発酵して、その菌体外に蓄積した多糖類
を精製し、粉末にした天然のガム質である。(Function) The xanthan gum used in the present invention is a type of fermented polysaccharide, and is produced by the microorganism xanthan dried eggplant (Xanthomonas campestris).
It is a natural gum that is made by fermenting glucose and refining the polysaccharides that accumulate outside the bacterial cells and turning it into powder.
このキサンタンガムは、一般に冷菓類、ハム、ソセージ
等食品の増粘、保水剤として多用されており、安全無害
であって、また微生物による代謝産物であることから、
自然界での分解性がよく、環境汚染等の問題がないもの
である。Xanthan gum is commonly used as a thickener and water-retaining agent for foods such as frozen desserts, ham, and sausages, and is safe and harmless, and is a metabolite of microorganisms.
It is highly degradable in nature and does not cause problems such as environmental pollution.
更に、本発明で使用する他のガム類として、グアガム、
ローカストビーンガムまたはタマリンドを使用する。Furthermore, other gums used in the present invention include guar gum,
Use locust bean gum or tamarind.
これらガム類は、いずれも植物類より分離された天然の
多糖類であって−前記キサンタンガムと同様に無害且つ
環境汚染の問題がないものである。All of these gums are natural polysaccharides isolated from plants, and like the xanthan gum, they are harmless and do not cause environmental pollution problems.
また、本発明で使用する水溶性アルミニウム塩の種類と
しては、ポリ塩化アルミニウム、硫酸アルミニウム、塩
化アルミニウム等を例示できる。Furthermore, examples of the water-soluble aluminum salt used in the present invention include polyaluminum chloride, aluminum sulfate, aluminum chloride, and the like.
本発明はこれらの薬剤を使用して水処理を行うが、その
処理方法に関して云えば、先ずキサンタンガムとグアガ
ム、ローカストビーンガムまたはタマリンドから選ばれ
たガム類とを混合し、被処理水を攪拌しながらこの混合
物を添加する。In the present invention, water treatment is carried out using these agents. Regarding the treatment method, first, xanthan gum and a gum selected from guar gum, locust bean gum, or tamarind are mixed, and the water to be treated is stirred. Add this mixture while stirring.
これらガム類の混合割合に関して云えば、キサンタンガ
ム(A)とグアガム、ローカストビーンガムまたはタマ
リンドから選ばれたガム(B)との混合物の混合割合が
(A)/(B)で1720〜20/1の範囲となるよう
に混合する。Regarding the mixing ratio of these gums, the mixing ratio of xanthan gum (A) and gum (B) selected from guar gum, locust bean gum, or tamarind is (A)/(B) 1720 to 20/1. Mix it so that it is within the range of .
即ち、本発明に於いてこれらガム類の混合割合は殊に重
要であり、この範囲を逸脱すると本発明の効果が得られ
ないものとなる。That is, in the present invention, the mixing ratio of these gums is particularly important, and if it deviates from this range, the effects of the present invention will not be obtained.
また、この混合物の被処理水に対する添加量は、被処理
水の濁質濃度、濁質量、pH等により異なリー概に云え
ないが、後段で添加使用する水溶性アルミニウム塩のA
1゜03に対して概ね1〜50重量%の範囲である。The amount of this mixture to be added to the water to be treated varies depending on the turbidity concentration, amount of turbidity, pH, etc. of the water to be treated, and cannot be generalized;
It is generally in the range of 1 to 50% by weight based on 1°03.
このガム類の混合物の添加後、適度な攪拌を行いながら
次いでこれに水溶性アルミニウム塩を添加する。After addition of the gum mixture, the water-soluble aluminum salt is then added to it with moderate stirring.
この水溶性アルミニウム塩の添加量に関しては、被処理
水の濁質量(懸濁質量)に対して概ねAl2O,3とし
て0.1〜5重量%の範囲となるように使用する。The amount of the water-soluble aluminum salt added is approximately 0.1 to 5% by weight as Al2O,3 based on the turbidity (suspended mass) of the water to be treated.
水溶性アルミニウム塩の添加後、更にこれを攪拌し、静
置することによって凝集によって生成したフロックは沈
降する。これを適当な固液分離手段を用いることによっ
て、濁質成分を分離除去すればよい。After adding the water-soluble aluminum salt, the mixture is further stirred and allowed to stand, so that the flocs generated by coagulation settle. The turbid components may be separated and removed by using an appropriate solid-liquid separation means.
(発明の効果)
本発明の水処理方法は、上記のように凝集処理方法によ
って、簡易且つ良好な水処理効果を得ることができるも
のである。(Effects of the Invention) The water treatment method of the present invention allows simple and good water treatment effects to be obtained by the aggregation treatment method as described above.
また、本発明で使用するキサンタンガム、グアガム等の
ガム類は、微生物由来あるいは天然物由来の物質である
ことから、安全無害であり、且つその分解性も良いこと
から環境への汚染がなく、河川、湖沼、海域での水処理
に際して最適なものである。In addition, since the gums used in the present invention, such as xanthan gum and guar gum, are derived from microorganisms or natural products, they are safe and harmless, and their degradability is also good, so they do not pollute the environment and are not polluted by rivers. It is ideal for water treatment in lakes, marshes, and sea areas.
更にその効果に関しては、従来より水処理薬剤として知
られているアルギン酸ナトリウム、カルボキシメチルセ
ルロース等と比べ、本発明の方法は格段に処理効果に優
れ、環境汚染問題で使用の制限されているポリアクリル
アミド等の合成高分子凝集剤の使用に匹敵する程の処理
効果が得られるものである。Furthermore, in terms of its effectiveness, the method of the present invention has a much superior treatment effect compared to sodium alginate, carboxymethyl cellulose, etc., which have been known as water treatment agents in the past. This treatment effect is comparable to that obtained using synthetic polymer flocculants.
(実施例)
以下に本発明の実施例を掲げ更に説明を行うが、本発明
はこれらに限定されるものではない。(Example) The present invention will be further explained below with reference to Examples, but the present invention is not limited thereto.
また、本発明に於いて%は特に断らない限り全て重量%
を示す。In addition, in the present invention, all percentages are by weight unless otherwise specified.
shows.
実施例1
カオリン(メルク社製、試薬級)43gを水道水101
1に添加し、よく攪拌を行った後これを一日放置して供
試濁水として用いた。Example 1 43g of kaolin (manufactured by Merck & Co., reagent grade) was added to 101g of tap water.
After stirring well, the mixture was left to stand for one day and used as a sample turbid water.
尚、凝集試験時におけるこの濁水の濁度は4000pp
mであり、pHは7.60であった。In addition, the turbidity of this turbid water during the flocculation test was 4000pp.
m, and the pH was 7.60.
供試濁水の100m1を100m1容の共栓付メスシリ
ンタ゛−に採り、これに第1表に示したキサンタンカ゛
ムと他の力゛ム類との混合物(混合割合471)の所定
量を添加し、メスシリンタ゛−の栓をして10回の転倒
攪拌を行った。Take 100 ml of the sample turbid water into a 100 ml graduated cylinder with a stopper, add the prescribed amount of the mixture (mixing ratio 471) of xanthan aluminum and other potent substances shown in Table 1, and The cylinder was capped and agitated 10 times.
これにボり塩化アルミニウム(A120.310.2%
、多本化学(株)製)の1100ppを添加した後、更
に10回の転倒攪拌を行った。To this, aluminum chloride (A120.310.2%
After adding 1,100 pp of 1,100 ppp (manufactured by Tamoto Kagaku Co., Ltd.), the mixture was further stirred by turning over 10 times.
攪拌後これを静置し、10分後止澄水の20m1を採取
して濁度を測定した。After stirring, this was allowed to stand, and after 10 minutes, 20 ml of still water was collected and the turbidity was measured.
また比較のために、前記キサンタンカ゛ムと他の力゛ム
類との混合物に代えて、 アルギン酸ナトリウム及び
カルボキシメチルセルローを使用して同様に試験を行い
、上澄水の濁度を測定した。For comparison, a similar test was conducted using sodium alginate and carboxymethyl cellulose instead of the mixture of the xanthan column and other potent compounds, and the turbidity of the supernatant water was measured.
これらの測定結果を第1表に示した。The results of these measurements are shown in Table 1.
実施例2
カオリン(メルク社製、試薬級)8gを水道水10Qに
添加し、よく攪拌を行った後これを一日放置して供試濁
水として用いた。Example 2 8 g of kaolin (manufactured by Merck & Co., reagent grade) was added to 10Q of tap water, thoroughly stirred, and left for one day to be used as a test turbid water.
尚、凝集試験時におけるこの濁水の濁度は700ppm
であり、pHは7.20であった。In addition, the turbidity of this turbid water during the flocculation test was 700 ppm.
and the pH was 7.20.
供試濁水の100m1を100m1容の共栓付メスシリ
ンタ゛−に採り、これにキサンタンカ゛ム(大日本製薬
(株)製)とり゛アカ゛ム(大日本製薬(株)製)との
混合物(混合割合271)の所定量を添加し、メスシリ
ンタ゛−の栓をして10回の転倒攪拌を行った。100 ml of the sample turbid water was taken into a 100 ml graduated cylinder with a stopper, and a mixture of xanthancam (manufactured by Dainippon Pharmaceutical Co., Ltd.) and Akaim (manufactured by Dainippon Pharmaceutical Co., Ltd.) (mixing ratio 271) was added to this. A predetermined amount of the mixture was added, the graduated cylinder was stopped, and the mixture was stirred by inversion 10 times.
更に、これに第2表に示した各種水溶性アルミニウム塩
の所定量を添加した後、更に10回の転倒攪拌を行った
。Furthermore, after adding predetermined amounts of various water-soluble aluminum salts shown in Table 2 to this, the mixture was further stirred by turning over 10 times.
攪拌後これを静置し、10分後止澄水の20m1を採取
して濁度を測定した。After stirring, this was allowed to stand, and after 10 minutes, 20 ml of still water was collected and the turbidity was measured.
また比較のために、前記試験に於いて水溶性アルミニウ
ム塩を添加せずに同様に試験を行い、上澄水の濁度を測
定した。For comparison, a similar test was conducted without adding the water-soluble aluminum salt, and the turbidity of the supernatant water was measured.
これらの測定結果を第2表に示した。The results of these measurements are shown in Table 2.
実施例3
カオリン(メルク社製、試薬級)43gを水道水10Q
に添加し、よく攪拌を行った後これを一日放置して供試
濁水として用いた。Example 3 43g of kaolin (manufactured by Merck & Co., reagent grade) was added to 10Q of tap water.
After stirring thoroughly, the mixture was left for one day and used as a sample turbid water.
尚、凝集試験時におけるこの濁水の濁度は4000pp
mであり、pHは7.60であった。In addition, the turbidity of this turbid water during the flocculation test was 4000pp.
m, and the pH was 7.60.
供試濁水の100m1を100m1容の共栓材メスシリ
ンタ゛−に採り、 これにキサンタンカ゛ム(大日本製
薬(株)製)とU−カス)ヒ’−/力゛ム(大日本製薬
(株)製)とを各々第3表に示した割合で混合したもの
を所定量を添加し、メスシリンタ゛−の栓をして10回
の転倒攪拌を行った。100 ml of the sample turbid water was taken into a 100 ml volume stopper graduated cylinder, and xanthan film (manufactured by Dainippon Pharmaceutical Co., Ltd.) and U-cas) heat/force (manufactured by Dainippon Pharmaceutical Co., Ltd.) were added to it. ) in the proportions shown in Table 3 was added in a predetermined amount, the graduated cylinder was stopped and the mixture was stirred by inverting 10 times.
これにボり塩化アルミニウム(A1.0.10.2%、
多木化学(株)製)の1100ppを添加した後、更に
10回の転倒攪拌を行った。To this, aluminum chloride (A1.0.10.2%,
After adding 1100 pp (manufactured by Taki Kagaku Co., Ltd.), the mixture was further stirred by turning over 10 times.
攪拌後これを静置し、10分後止澄水の20m1を採取
して濁度を測定した。After stirring, this was allowed to stand, and after 10 minutes, 20 ml of still water was collected and the turbidity was measured.
また比較のために、 キサンタンカ゛ムとローカストビ
゛−ンカ゛ムとを混合せずに、各々単独で添加使用して
同様に試験を行い、上澄水の濁度を測定した。For comparison, a similar test was conducted using xanthan column and locust beam column without mixing them, and each was used alone, and the turbidity of the supernatant water was measured.
これらの測定結果を第3表に示した。The results of these measurements are shown in Table 3.
実施例4
海水中での浚渫工事に伴って排出された濁水(兵庫県加
古川布)を供試濁水として用いて凝集試験を行った。Example 4 A flocculation test was conducted using turbid water discharged as a result of dredging work in seawater (Kakogawafu, Hyogo Prefecture) as a sample turbid water.
尚、試験時におけるこの濁水の濁度は1l1000pp
であり、pHは7.43であった。In addition, the turbidity of this turbid water at the time of the test was 1 liter 1000 pp.
and the pH was 7.43.
供試濁水の500m1を500m1容の共栓材メスシリ
ンタ゛−に採り、これに第4表に示したキサンタンカ゛
ムと他の力゛ム類との混合物(混合割合l/4)の所定
量を添加し、メスシリンタ゛−の栓をして10回の転倒
攪拌を行った。500 ml of the sample turbid water was placed in a 500 ml female stopper cylinder, and a prescribed amount of the mixture of xanthan aluminum and other active materials shown in Table 4 (mixing ratio 1/4) was added to this. Then, the graduated cylinder was stopped and stirred by inversion 10 times.
これにネ°り塩化アルミニウム(A120310.2%
、多木化学(株)製)の400ppmを添加した後、更
に10回の転倒攪拌を行った。Add aluminum chloride (A120310.2%) to this.
After adding 400 ppm of Taki Kagaku Co., Ltd., the mixture was further stirred by inversion 10 times.
攪拌後これを静置し、10分後止澄水の20m1を採取
して濁度を測定した。After stirring, this was allowed to stand, and after 10 minutes, 20 ml of still water was collected and the turbidity was measured.
また比較のために、前記キサンタンカ゛ムと他の力゛ム
類との混合物に代えて、市販の合成高分子凝集剤及びホ
。For comparison, commercially available synthetic polymer flocculants and polymers were used in place of the mixture of xanthan column and other polymers.
す塩化アルミニウムのみを単独使用して同様に試験を行
い、上澄水の濁度を測定した。A similar test was conducted using only aluminum chloride, and the turbidity of the supernatant water was measured.
これらの測定結果を第4表に示した。The results of these measurements are shown in Table 4.
Claims (2)
ムまたはタマリンドから選ばれたガム類との混合物と水
溶性アルミニウム塩とを使用することからなる水処理方
法。(1) A water treatment method comprising using a mixture of xanthan gum and a gum selected from guar gum, locust bean gum or tamarind, and a water-soluble aluminum salt.
ーンガムまたはタマリンドから選ばれたガム類(B)と
の混合物の混合割合が(A)/(B)で1/20〜20
/1の範囲である特許請求の範囲第1項記載の水処理方
法。(2) The mixture ratio of xanthan gum (A) and gum (B) selected from guar gum, locust bean gum, or tamarind is 1/20 to 20 (A)/(B).
The water treatment method according to claim 1, wherein the water treatment method is within the range of /1.
Priority Applications (1)
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---|---|---|---|
JP2190004A JPH0655310B2 (en) | 1990-07-17 | 1990-07-17 | Water treatment method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2190004A JPH0655310B2 (en) | 1990-07-17 | 1990-07-17 | Water treatment method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0474592A true JPH0474592A (en) | 1992-03-09 |
JPH0655310B2 JPH0655310B2 (en) | 1994-07-27 |
Family
ID=16250780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2190004A Expired - Fee Related JPH0655310B2 (en) | 1990-07-17 | 1990-07-17 | Water treatment method |
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Country | Link |
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JP (1) | JPH0655310B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007038131A (en) * | 2005-08-03 | 2007-02-15 | Yoshitoshi Maeda | Stirring rod for coagulating sedimentation of turbid water |
CN104284866A (en) * | 2012-03-28 | 2015-01-14 | 哈洛资源公司 | Water treatment compositions and methods of use |
JP2016203129A (en) * | 2015-04-28 | 2016-12-08 | 株式会社大林組 | Water treatment material and water treatment method |
NO20170200A1 (en) * | 2017-02-09 | 2018-08-10 | M Vest Water As | Removal of contaminants in water |
CN109399772A (en) * | 2018-11-15 | 2019-03-01 | 浙江海洋大学 | A kind of preparation method of natural peach gum composite flocculation agent |
WO2020067284A1 (en) * | 2018-09-27 | 2020-04-02 | デクセリアルズ株式会社 | Anionic flocculant, anionic flocculant production method, and treatment method |
JP2020054992A (en) * | 2018-09-27 | 2020-04-09 | デクセリアルズ株式会社 | Anionic flocculant, anionic flocculant production method, and treatment method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5498043A (en) * | 1978-01-17 | 1979-08-02 | Sekisui Chem Co Ltd | Process for treating waste water containing starchy substances |
-
1990
- 1990-07-17 JP JP2190004A patent/JPH0655310B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5498043A (en) * | 1978-01-17 | 1979-08-02 | Sekisui Chem Co Ltd | Process for treating waste water containing starchy substances |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4584791B2 (en) * | 2005-08-03 | 2010-11-24 | 芳聰 前田 | Stirring bar for turbid water coagulation sedimentation |
JP2007038131A (en) * | 2005-08-03 | 2007-02-15 | Yoshitoshi Maeda | Stirring rod for coagulating sedimentation of turbid water |
CN104284866A (en) * | 2012-03-28 | 2015-01-14 | 哈洛资源公司 | Water treatment compositions and methods of use |
JP2016203129A (en) * | 2015-04-28 | 2016-12-08 | 株式会社大林組 | Water treatment material and water treatment method |
EP3579944B1 (en) | 2017-02-09 | 2020-12-09 | M Vest Water AS | Method for removing impurities from a fluid stream |
NO20170200A1 (en) * | 2017-02-09 | 2018-08-10 | M Vest Water As | Removal of contaminants in water |
WO2018147742A1 (en) * | 2017-02-09 | 2018-08-16 | M Vest Water As | Method for removing impurities from a fluid stream |
EP3579944B2 (en) † | 2017-02-09 | 2024-03-27 | M Vest Water AS | Method for removing impurities from a fluid stream |
NO343524B1 (en) * | 2017-02-09 | 2019-04-01 | M Vest Water As | Process for removing unwanted organic and inorganic contaminants in liquids |
US10889513B2 (en) | 2017-02-09 | 2021-01-12 | M Vest Water As | Method for removing impurities from a fluid stream |
JP2020054992A (en) * | 2018-09-27 | 2020-04-09 | デクセリアルズ株式会社 | Anionic flocculant, anionic flocculant production method, and treatment method |
WO2020067284A1 (en) * | 2018-09-27 | 2020-04-02 | デクセリアルズ株式会社 | Anionic flocculant, anionic flocculant production method, and treatment method |
CN112996581A (en) * | 2018-09-27 | 2021-06-18 | 迪睿合株式会社 | Anionic flocculant, method for producing anionic flocculant, and method for treating anionic flocculant |
CN109399772A (en) * | 2018-11-15 | 2019-03-01 | 浙江海洋大学 | A kind of preparation method of natural peach gum composite flocculation agent |
Also Published As
Publication number | Publication date |
---|---|
JPH0655310B2 (en) | 1994-07-27 |
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