JPH09225208A - Sewage treating agent and treating method - Google Patents
Sewage treating agent and treating methodInfo
- Publication number
- JPH09225208A JPH09225208A JP3399296A JP3399296A JPH09225208A JP H09225208 A JPH09225208 A JP H09225208A JP 3399296 A JP3399296 A JP 3399296A JP 3399296 A JP3399296 A JP 3399296A JP H09225208 A JPH09225208 A JP H09225208A
- Authority
- JP
- Japan
- Prior art keywords
- sewage
- substance
- carbonate
- sulfate
- treatment agent
- 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
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は各種産業廃水、下
水、湖沼水等の好適な処理方法及びそれに用いられる処
理剤に関する。特に懸濁物質、ＣＯＤ成分、色成分、臭
いなどが混在している汚水を簡単に、効率良く、安価に
処理する処理剤とそれを用いる処理方法に関する。TECHNICAL FIELD The present invention relates to a suitable method for treating various industrial wastewater, sewage, lake water and the like, and a treating agent used therefor. In particular, the present invention relates to a treatment agent for treating sewage mixed with suspended substances, COD components, color components, odors, etc. simply, efficiently and inexpensively, and a treatment method using the same.
【０００２】[0002]
【従来の技術】従来、汚水の処理方法としては無機凝集
剤、有機凝集剤、吸着剤を単独であるいは段階的に汚水
に添加し、撹拌することでフロックを生成させ、フィル
タープレス等の脱水機により脱水する方法が行われてき
た。これらの方法は対象汚水の性状によって処理薬剤の
添加量及び組み合せを変える必要があった。また処理薬
剤はあらかじめ清水に溶解又は分散させ液状にしてから
添加される。2. Description of the Related Art Conventionally, as a method for treating sewage, an inorganic coagulant, an organic coagulant, or an adsorbent is added to sewage singly or in stages, and flocs are generated by stirring, and a dehydrator such as a filter press is used. Have been used to dehydrate. In these methods, it was necessary to change the amount and combination of treatment chemicals added depending on the properties of the target sewage. Further, the treatment chemicals are dissolved or dispersed in fresh water in advance to be in a liquid state and then added.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の処理法で
は、処理薬剤を溶解・分散させるため多量の清水が必要
であった。また汚水の性状、内容により、薬剤の添加量
や組み合せを変える必要があり、その管理は煩雑であ
り、自動化のためには大がかりなプラントが必要であっ
た。本発明は、薬剤の添加が非常に簡単であり汚水の性
状の変化にも対応できる、極めてシンプルな汚水の処理
方法及びそれに用いられる処理剤を提供することを目的
とする。In the above conventional treatment method, a large amount of fresh water was required to dissolve and disperse the treatment chemical. In addition, it is necessary to change the amount and combination of chemicals depending on the nature and content of sewage, the management is complicated, and a large-scale plant is required for automation. An object of the present invention is to provide an extremely simple method for treating sewage and a treatment agent used therefor, which is very easy to add chemicals and can cope with changes in properties of sewage.
【０００４】[0004]
【課題を解決するための手段】本発明者は上記課題に鑑
み、研究を重ねた結果、吸着物質、炭酸塩、硫酸塩及び
高分子凝集物質を粉末状で混合してなる特定の処理剤を
汚水に添加、撹拌することにより、処理剤をその発泡下
に分散させ、その後凝集させて、汚水中の懸濁物質、Ｃ
ＯＤ、ＢＯＤ、色成分、臭い成分等の汚染物質をとり込
んでフロック化でき、すみやかに、効率よく汚染物質を
吸着、除去できることを見い出した。本発明はこれらの
知見に基づき、なされたものである。Means for Solving the Problems In view of the above problems, the present inventor has conducted extensive research and as a result has found a specific treatment agent prepared by mixing an adsorbent, a carbonate, a sulfate and a polymer aggregate in a powder form. The treatment agent is dispersed under the foaming by adding to the wastewater and stirring, and then the treatment agent is aggregated to obtain a suspended substance, C, in the wastewater.
It was found that pollutants such as OD, BOD, color components, and odor components can be taken into flocs, and the pollutants can be adsorbed and removed promptly and efficiently. The present invention has been made based on these findings.
【０００５】すなわち本発明は（１）吸着物質、炭酸
塩、硫酸塩及び高分子凝集物質を含有してなり、粉末状
としてなることを特徴とする汚水の処理剤、（２）吸着
物質がベントナイト、炭酸塩が炭酸ナトリウム、硫酸塩
が硫酸アルミニウム、高分子凝集物質がアクリル酸ソー
ダとアクリルアミドの共重合物である（１）項記載の汚
水の処理剤、（３）汚水に粉末状の発泡性でフロック形
成性の複合凝集剤を添加、撹拌し、発泡下に分散させ、
その後汚染物質をフロック化し、次いで固液分離するこ
とを特徴とする汚水の処理方法、及び（４）汚水に粉末
状の発泡性でフロック形成性の（１）又は（２）項記載
の処理剤を添加、撹拌し、発泡下に分散させ、その後汚
染物質をフロック化し、次いで固液分離することを特徴
とする汚水の処理方法を提供するものである。That is, according to the present invention, (1) a sewage treatment agent comprising an adsorbent, a carbonate, a sulfate and a polymer agglomerate in the form of powder, and (2) the adsorbent is bentonite. , The carbonate is sodium carbonate, the sulfate is aluminum sulfate, and the polymer aggregate is a copolymer of sodium acrylate and acrylamide, (1) The treatment agent for sewage, (3) the foaming property of sewage in powder form Add a floc-forming complex coagulant with, stir, and disperse under foaming,
After that, pollutants are flocculated, and then solid-liquid separation is performed, and (4) a treatment agent according to item (1) or (2), which is a powdery foamable and floc-forming agent for wastewater. The present invention provides a method for treating sewage, which comprises adding, stirring and dispersing under a foaming condition, then fouling contaminants, and then performing solid-liquid separation.
【０００６】[0006]
【発明の実施の形態】次に本発明を詳細に説明する。本
発明の処理剤に用いられる吸着物質としては、活性炭、
フライアッシュ、焼成マグネシア、活性白土、ゼオライ
ト、ベントナイト等が挙げられ、ベントナイトが特に好
ましい。本発明においては前記吸着物質のいずれか１種
又は２種以上を使用することもできる。この吸着物質の
含有量は通常５〜５０重量％、好ましくは１０〜４０重
量％である。これが多すぎると処理後のフロックの重量
が大きくなりすぎ、また吸着物質がフロックに取り込ま
れにくくなり、処理水のｓｓの増加の原因となることが
あり、少なすぎると汚水中のＣＯＤ、ＢＯＤ、色成分、
臭い成分等の吸着を十分に行うためには、処理剤全体の
使用量を増加しなけれならないという欠点がある。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. As the adsorbent used in the treatment agent of the present invention, activated carbon,
Examples include fly ash, calcined magnesia, activated clay, zeolite, and bentonite, with bentonite being particularly preferred. In the present invention, any one kind or two or more kinds of the adsorbing substances may be used. The content of the adsorbent is usually 5 to 50% by weight, preferably 10 to 40% by weight. If this amount is too large, the weight of the flocs after treatment becomes too large, and the adsorbed substance becomes difficult to be taken into the flocs, which may cause an increase in the ss of the treated water. If it is too small, COD, BOD in the wastewater, Color components,
In order to sufficiently adsorb odorous components and the like, there is a drawback that the total amount of the treating agent must be increased.
【０００７】また、炭酸塩としては、炭酸ナトリウム、
炭酸カリウム、炭酸カルシウム、炭酸マグネシウム、炭
酸水素ナトリウム等が挙げられ、炭酸ナトリウムが特に
好ましい。炭酸塩の含有量は通常５〜５０重量％、好ま
しくは１０〜４０重量％である。これが多すぎると硫酸
塩とのバランスでアルカリ性となり過ぎることがあり、
過剰な部分の炭酸塩は汚水の処理に関与しないことにな
り、逆効果になる場合がある。少なすぎると処理剤の発
泡が十分に行われなくなり、ママコの原因となる。これ
らはいずれか１種又は２種以上用いる。また、硫酸塩と
しては、硫酸アルミニウム、硫酸第１鉄、硫酸第２鉄、
硫酸ナトリウム、硫酸マグネシウム、硫酸カリウム、カ
リミョウバン等、いずれか１種又は２種以上を使用する
こともできる。硫酸塩の含有量は通常５〜５０重量％、
好ましくは１０〜４０重量％である。これが多すぎると
炭酸塩とのバランスで酸性になり過ぎることがあり、過
剰な部分の硫酸塩は汚水の処理に関与していないことに
なり、逆効果になる場合がある。少なすぎると処理剤の
発泡が十分に行われなくなり、また汚水中のコロイドの
電気的中和に係わる金属イオンが不足することになり、
フロックの形成が十分に行えない。As the carbonate, sodium carbonate,
Examples thereof include potassium carbonate, calcium carbonate, magnesium carbonate, sodium hydrogen carbonate and the like, and sodium carbonate is particularly preferable. The content of carbonate is usually 5 to 50% by weight, preferably 10 to 40% by weight. If this is too much, it may become too alkaline in balance with the sulfate,
An excess of carbonate will not be involved in the treatment of sewage, which may be counterproductive. If the amount is too small, the treatment agent will not be sufficiently foamed, which causes mamako. These are used alone or in combination of two or more. As the sulfate, aluminum sulfate, ferrous sulfate, ferric sulfate,
Any one kind or two or more kinds of sodium sulfate, magnesium sulfate, potassium sulfate, potassium alum and the like can be used. The content of sulfate is usually 5 to 50% by weight,
It is preferably 10 to 40% by weight. If this amount is too large, it may become too acidic due to the balance with the carbonate, and the excess portion of the sulfate may not be involved in the treatment of the wastewater, which may have an adverse effect. If the amount is too small, the treatment agent will not be sufficiently foamed, and the metal ions involved in the electrical neutralization of the colloid in the wastewater will be insufficient.
Flock cannot be formed sufficiently.
【０００８】本発明の処理剤に用いられる高分子凝集物
質としては水溶性の高分子物質、たとえば、ポリアクリ
ル酸塩、ポリアクリルアミド、ポリアクリルアミドの変
性物、ポリビニルアルコール、ＣＭＣ、ＭＣ（メチルセ
ルロース）、アルギン酸塩、キサンタンガム、グアガ
ム、ＨＥＣ（ヒドロキシエチルセルロース）、ポリエチ
レンオキサイト、キトサン、寒天、ゼラチン、ポリマレ
イン酸、ポリスチレンスルホン酸塩、ポリビニルスルホ
ン酸、ポリイミド、ポリアミン、ポリアクリル酸エステ
ル等とこれらの変性物が挙げられる。これらの１種又は
２種以上を使用することもでき、これらの共重合物を使
用することも可能である。アクリル酸ソーダとアクリル
アミドの共重合物が特に好ましい。高分子凝集物質の含
有量は通常０．１〜２０重量％、好ましくは０．５〜１
０重量％である。これが多すぎると過剰な部分の高分子
凝集物質がフロックに取り込まれなくなり、処理水中に
残存し、二次凝集の原因となることがある。少なすぎる
とフロックの強度が弱くなり、脱水しがたいフロックと
なり、極端に少ない場合、フロックが微細となり、脱水
不可能となる場合がある。本発明において処理剤の各成
分は通常、１〜５００μｍ、好ましくは１０〜３００μ
ｍの粒径の粉末状とする。粒子は細かい程溶解しやすい
が、あまり細かいと汚水へ添加する際、飛散し易く作業
環境上、好ましくない。As the polymer aggregating substance used in the treatment agent of the present invention, a water-soluble polymer substance such as polyacrylic acid salt, polyacrylamide, a modified product of polyacrylamide, polyvinyl alcohol, CMC, MC (methyl cellulose), Alginate, xanthan gum, guar gum, HEC (hydroxyethyl cellulose), polyethylene oxide, chitosan, agar, gelatin, polymaleic acid, polystyrene sulfonate, polyvinyl sulfonic acid, polyimide, polyamine, polyacrylic acid ester and modified products of these Can be mentioned. These 1 type (s) or 2 or more types can also be used, and it is also possible to use these copolymers. A copolymer of sodium acrylate and acrylamide is particularly preferable. The content of the polymer aggregate is usually 0.1 to 20% by weight, preferably 0.5 to 1
0% by weight. If the amount is too large, the excessive amount of the polymer aggregate substance is not taken into the floc and remains in the treated water, which may cause secondary aggregation. If the amount is too small, the strength of the flocs becomes weak, and the flocs are difficult to dehydrate. If the amount is extremely small, the flocs may become fine and the dehydration may become impossible. In the present invention, each component of the treating agent is usually 1 to 500 μm, preferably 10 to 300 μm.
A powder having a particle size of m is used. The finer the particles are, the easier they are to dissolve, but if they are too fine, they are likely to scatter when added to sewage, which is not preferable from the working environment.
【０００９】本発明の汚水の処理剤は、吸着物質、炭酸
塩、硫酸塩、高分子凝集物質が予め粉末で所定の割合で
混合されているものである。これらの配合は、対象汚水
の性状により適宜、変えることが可能であり処理後の分
離水が最も清澄になるような配合にすることが望まし
い。すなわち、対象汚水に溶解有機物や色素成分、臭い
成分が多量に含まれている時は、吸着物質の割合を増や
すことが経済的であり、汚水のｐＨが酸性あるいはアル
カリ性の時には炭酸塩や硫酸塩の配合を変えることによ
り、分離水の二次中和処理が不必要となる。The sewage treatment agent of the present invention is one in which an adsorbing substance, a carbonate, a sulfate and a polymer aggregating substance are mixed in advance in the form of powder at a predetermined ratio. The composition of these can be appropriately changed depending on the properties of the target sewage, and it is desirable that the separated water after treatment be the most clear. That is, when the target sewage contains a large amount of dissolved organic substances, pigment components, and odorous components, it is economical to increase the ratio of the adsorbed substance, and when the pH of the sewage is acidic or alkaline, carbonates or sulfates are included. The secondary neutralization treatment of the separated water becomes unnecessary by changing the composition of the above.
【００１０】本発明の汚水の処理方法は、対象汚水に粉
末状の処理剤を直接添加し、混合することで、汚水中の
懸濁物質や溶解物質などの汚染物質を大きなフロックの
中に取り込み、その後固液分離を行うことによって清澄
な分離水を得ることを特徴とする。本発明の方法におい
ては処理剤が粉末であるためライン添加の場合は、ジェ
ットミキサー等を用いれば簡単に添加が可能であり、処
理剤は予め調製してあるため多量に添加しても処理中の
ｐＨが変化したり処理剤が残存するようなトラブルがな
い。すなわち、本発明の処理剤は、吸着物質、炭酸塩、
硫酸塩、高分子凝集物質をバランス良く調製して配合し
てあるため、全くの純水にこの処理剤を添加してもそれ
自身でフロックの形成がなされ、処理剤はこのフロック
中に取り込まれているため分離水中には、処理剤が残ら
ず、また、分離水のｐＨも中性を保っている。さらに処
理剤中にＣｌ- を含まないため湖沼等の閉鎖性水域でこ
の処理剤を使用しても環境へ悪影響を与えない。この処
理剤は炭酸塩と硫酸塩を粉末で含んでいるため、水と接
すると化学反応を起こし炭酸ガスを発しながら溶解す
る。これにより、処理剤は溶解しにくい、いわゆるママ
コになることがなく、すみやかに汚水全域にゆきわた
る。この処理剤により得られるフロックは非常に大きく
しっかりとしているためすみやかに沈殿し、被処理汚水
から引き抜くことができる。また圧縮空気を吹き込みな
がら撹拌を行えば浮上したフロックを容易にかき取るこ
とも可能である。In the wastewater treatment method of the present invention, a powdery treatment agent is directly added to the target wastewater and mixed to take in pollutants such as suspended substances and dissolved substances in the wastewater into large flocs. Then, the solid-liquid separation is performed thereafter to obtain clear separated water. In the method of the present invention, since the treatment agent is a powder, in the case of line addition, it can be easily added by using a jet mixer or the like. There is no trouble such as change in pH or residual treatment agent. That is, the treatment agent of the present invention is an adsorbent, carbonate,
Sulfates and macromolecular flocculating substances are prepared and mixed in a well-balanced manner, so even if this treatment agent is added to pure water, flocs will be formed by itself, and the treatment agent will be incorporated into this floc. Therefore, the treatment agent does not remain in the separated water, and the pH of the separated water is kept neutral. It does not adversely affect the environment even with this treatment agent by closed water area of the lake or the like because it contains no - more Cl during processing agent. Since this treatment agent contains carbonate and sulfate in the form of powder, when it comes into contact with water, it causes a chemical reaction to dissolve while generating carbon dioxide gas. As a result, the treatment agent does not easily dissolve and does not become so-called mamako, and quickly spreads over the entire wastewater. The flocs obtained with this treatment agent are so large and firm that they settle quickly and can be withdrawn from the wastewater to be treated. Further, it is possible to easily scrape the floating flocs by stirring while blowing compressed air.
【００１１】本発明の方法によれば、溶解性有機物や色
素成分臭気成分等は吸着物質に吸着される。この吸着物
質と汚水中の懸濁物質が核となり高分子凝集物質の架橋
作用によりフロックが形成される。また、炭酸塩や硫酸
塩が含んでいる金属イオンの効果で凝集し難いコロイド
状物質もそのゼータ電位が電気的に中和され、フロック
に取り込まれる。本発明の処理方法においては、処理剤
をあらかじめ清水に溶く必要がないため、薬剤タンクや
薬注ポンプが必要なく、非常にコンパクトなプラントの
設計が可能である。また、処理剤だけでもフロックを形
成するため過剰な添加による悪影響がない。このため薬
注管理がシビアにならず、自動処理プラントの設計も可
能である。According to the method of the present invention, soluble organic substances, dye components, odorous components, etc. are adsorbed by the adsorbent. The adsorbed substance and the suspended substance in the waste water serve as nuclei to form flocs by the cross-linking action of the polymer aggregate substance. Further, the zeta potential of a colloidal substance which is hard to aggregate due to the effect of metal ions contained in carbonates and sulfates is also electrically neutralized and taken into flocs. In the treatment method of the present invention, since it is not necessary to dissolve the treatment agent in fresh water in advance, a chemical tank or a chemical injection pump is not required, and a very compact plant can be designed. Further, since the treatment agent alone forms flocs, there is no adverse effect due to excessive addition. For this reason, chemical drug management is not severe, and it is possible to design an automatic processing plant.
【００１２】本発明方法を適用して処理される汚水の種
類については、特に制限はなく、各種産業廃水、下水、
し尿等の他、湖沼河川、海域の汚水、建設廃水、その他
の各種汚水を包含するものである。本発明の処理方法に
より処理され、分離された水は、各種汚染物質が除去さ
れ清澄な状態であるので、そのまま下水道、河川、海
域、湖沼等へ放流可能である。The type of wastewater treated by applying the method of the present invention is not particularly limited, and various industrial wastewater, sewage,
In addition to human waste, it includes sewage from lakes and rivers, marine sewage, construction wastewater, and other various sewage. The water treated and separated by the treatment method of the present invention is in a clear state in which various pollutants are removed, and therefore can be discharged as it is to sewers, rivers, sea areas, lakes and the like.
【００１３】[0013]
【実施例】次に本発明を実施例に基づきさらに詳細に説
明する。なお、例中、特に断わらない限り％は重量％を
示す。Next, the present invention will be described in more detail with reference to examples. In the examples,% means% by weight unless otherwise specified.
【００１４】実施例１ 食品工場より採取した汚水５００ｍｌ（固形分含有量
０．１％）にゼオライト（ゼオライト１５０；クニミネ
工業社製、平均粒径６０μｍ）３９重量部、炭酸ナトリ
ウム（平均粒径１５０μｍ）２０重量部、硫酸アルミニ
ウム（平均粒径２５０μｍ）３９重量部、ポリアクリル
アミド（スミフロックＦＮ２０Ｈ住友化学工業社製、平
均粒径８０μｍ）２重量部を予め混合したものを０．０
５％の濃度となるように添加して約１分間急速撹拌を行
うと発泡しながら分散し、その後、フロックが生成され
た。このフロックを４８メッシュの篩を用いて脱水し、
分離水を得た。この分離水のＳＳ、透視度、ＣＯＤ、ｐ
Ｈを測定し、その結果を表１に示した。比較として該汚
水に硫酸アルミニウムを０．０７％の濃度となるように
添加して約１分間急速撹拌を行い、その後、ポリアクリ
ルアミド（実施例と同種）を０．００１％の濃度となる
よう添加して約１分間緩速撹拌を行い処理を行った。こ
の場合の処理剤はそれぞれ、３５％、０．１％の水溶液
として添加した。その結果、微細なフロックしか生成さ
れず４８メッシュの篩を全て通過してしまった。Example 1 To 500 ml of sewage collected from a food factory (solid content: 0.1%), 39 parts by weight of zeolite (zeolite 150; Kunimine Industry Co., Ltd., average particle size 60 μm), sodium carbonate (average particle size 150 μm) ) 20 parts by weight, 39 parts by weight of aluminum sulfate (average particle size 250 μm), and 2 parts by weight of polyacrylamide (Sumifloc FN20H, manufactured by Sumitomo Chemical Co., Ltd., average particle size 80 μm) are mixed beforehand with 0.0.
When it was added so as to have a concentration of 5% and rapidly stirred for about 1 minute, it was dispersed while foaming, and then flocs were formed. This floc is dehydrated using a 48 mesh screen,
Separated water was obtained. This separation water SS, transparency, COD, p
H was measured and the results are shown in Table 1. For comparison, aluminum sulphate was added to the sewage to a concentration of 0.07% and rapidly stirred for about 1 minute, and then polyacrylamide (the same kind as in Example) was added to a concentration of 0.001%. Then, the mixture was treated with gentle stirring for about 1 minute. The treating agents in this case were added as 35% and 0.1% aqueous solutions, respectively. As a result, only fine flocs were produced and passed through the 48-mesh sieve.
【００１５】[0015]
【表１】 [Table 1]
【００１６】実施例２ 建設工事現場より採取した２種類の汚水それぞれ２００
ｍｌに、ベントナイト（クニゲルＶ１；クニミネ工業社
製、平均粒径５０μｍ）２９重量部、炭酸ナトリウム
（平均粒径１５０μｍ）３０重量部、硫酸アルミニウム
（平均粒径２５０μｍ）３９重量部、アクリル酸ソーダ
とアクリルアミドの共重合物（アコフロックＡ−１２
５、三井サイテック社製、平均粒径８０μｍ）２重量部
を予め混合したものを０．１％の濃度となるように添加
して約１分間急速撹拌を行うと発泡しながら分散し、そ
の後、フロックが生成された。このフロックをＡＰＩ規
格のフィルタープレス試験機により固液分離を行い分離
水を得た。この分離水のＣＯＤと色度の測定を行い除去
率を算出した。その結果を表２に示した。比較のため、
各汚水２００ｍｌに硫酸アルミニウムを０．１％の濃度
となるように添加して約１分間急速撹拌を行い、その
後、アクリル酸ソーダとアクリルアミドの共重合物（実
施例と同種）を０．００２％となるように添加して約１
分間緩速撹拌を行うとフロックが生成された。このフロ
ックを実施例と同様に処理を行い、ＣＯＤと色度の測定
を行い除去率を算出した。この結果も併せて表２に示し
た。なお、比較例の処理剤はそれぞれ３５％、０．１％
の水溶液として添加した。表２に示す通り、本発明例の
分離水はいずれも外見上透明であり、ＣＯＤと共に高い
除去効果が得られた。Example 2 Two kinds of sewage collected from a construction site, 200 each
In ml, bentonite (Kunigel V1, manufactured by Kunimine Industries, average particle size 50 μm) 29 parts by weight, sodium carbonate (average particle size 150 μm) 30 parts by weight, aluminum sulfate (average particle size 250 μm) 39 parts by weight, sodium acrylate and Copolymer of acrylamide (Acofloc A-12
5, Mitsui Scitech Co., Ltd., average particle size 80 μm) 2 parts by weight was added in advance so as to have a concentration of 0.1%, and rapidly stirred for about 1 minute to disperse while foaming. Flock was generated. This floc was subjected to solid-liquid separation by an API standard filter press tester to obtain separated water. The COD and chromaticity of this separated water were measured to calculate the removal rate. The results are shown in Table 2. For comparison,
Aluminum sulfate was added to 200 ml of each sewage to a concentration of 0.1% and rapidly stirred for about 1 minute, and then 0.002% of a copolymer of sodium acrylate and acrylamide (the same kind as in Example) was added. About 1 to add
Flock was generated when the mixture was stirred slowly for a minute. This floc was treated in the same manner as in the example, and COD and chromaticity were measured to calculate the removal rate. The results are also shown in Table 2. The treating agents of the comparative examples are 35% and 0.1%, respectively.
Was added as an aqueous solution of. As shown in Table 2, all of the separated water of the present invention were transparent in appearance, and a high removal effect was obtained together with COD.
【００１７】[0017]
【表２】 [Table 2]
【００１８】実施例３ 鋳物工業のキューポラ廃ガス処理施設より採取した汚水
（固形分含有量；６７０ｍｇ／ｌ）にベントナイト（ク
ニゲルＶ１；クニミネ工業社製、平均粒径５０μｍ）２
９重量部、炭酸ナトリウム（平均粒径１５０μｍ）３０
重量部、硫酸アルミニウム（平均粒径２５０μｍ）３９
重量部、アクリル酸ソーダとアクリルアミドの共重合物
（アコフロックＡ−１２５、三井サイテック社製、平均
粒径８０μｍ）２重量部を予め混合したもの（実施例２
で使用したものと同様）を０．０１％の濃度となるよう
に添加して約３０秒間急速撹拌を行うと発泡しながら分
散し、その後フロックが生成された。汚水中の懸濁物質
はフロックに取り込まれ、フロックは即座に沈殿し、清
澄な上澄と分離した。比較のため、該汚水に、硫酸アル
ミニウムを含まない以外は実施例３と同様の混合粉体を
０．０１％の濃度となるように添加して約３０秒間急速
撹拌を行った。その結果、発泡はおこらず、そのためマ
マコとなり水面に浮いていたので、さらに撹拌を約１分
間続けたところ、微細な、フロックが形成されたが、沈
殿するまでに、約３０秒間の時間を要した。Example 3 Bentonite (Kunigel V1, manufactured by Kunimine Industry Co., Ltd., average particle size 50 μm) 2 was added to sewage (solid content: 670 mg / l) collected from a cupola waste gas treatment facility in the foundry industry.
9 parts by weight, sodium carbonate (average particle size 150 μm) 30
Parts by weight, aluminum sulfate (average particle size 250 μm) 39
2 parts by weight of a mixture of 2 parts by weight of a copolymer of sodium acrylate and acrylamide (Acofloc A-125, manufactured by Mitsui Cytec Co., Ltd., average particle size 80 μm) (Example 2)
The same as used in 1) was added so as to have a concentration of 0.01%, and rapid stirring was performed for about 30 seconds to disperse while foaming, and then flocs were formed. The suspended matter in the wastewater was taken up by the flocs, which immediately settled and separated from the clear supernatant. For comparison, the same mixed powder as in Example 3 was added to the sewage so as to have a concentration of 0.01% except that it did not contain aluminum sulfate, and the mixture was rapidly stirred for about 30 seconds. As a result, foaming did not occur, and it became mamako and floated on the water surface, so when stirring was continued for about 1 minute, fine flocs were formed, but it took about 30 seconds to settle. did.
【００１９】[0019]
【発明の効果】本発明の汚水の処理方法は従来の汚水の
処理方法に対して、優れたフロックの生成を示し、分離
される水は極めて清澄であり、懸濁物質、ＣＯＤ成分、
色成分等が除去されているため、汚水の処理方法として
好適である。また、本発明の汚水の処理剤は粉末のまま
添加が可能なため、上記汚水の処理を効果的に行うこと
ができる。INDUSTRIAL APPLICABILITY The sewage treatment method of the present invention shows excellent floc formation as compared with the conventional sewage treatment methods, the separated water is extremely clear, and the suspended solids, COD components,
Since color components and the like are removed, it is suitable as a method for treating sewage. In addition, since the treatment agent for sewage of the present invention can be added as a powder, the treatment of the above sewage can be effectively performed.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｃ０１Ｄ 7/00 Ｃ０１Ｄ 7/00 Ｚ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location // C01D 7/00 C01D 7/00 Z
Claims (4)
集物質を含有してなり、粉末状としてなることを特徴と
する汚水の処理剤。1. A sewage treatment agent comprising an adsorbing substance, a carbonate, a sulfate and a polymer aggregating substance, which is in the form of a powder.
ナトリウム、硫酸塩が硫酸アルミニウム、高分子凝集物
質がアクリル酸ソーダとアクリルアミドの共重合物であ
る請求項１記載の汚水の処理剤。2. The treating agent for sewage according to claim 1, wherein the adsorbing substance is bentonite, the carbonate is sodium carbonate, the sulfate is aluminum sulfate, and the polymer aggregating substance is a copolymer of sodium acrylate and acrylamide.
の複合凝集剤を添加、撹拌し、発泡下に分散させ、その
後汚染物質をフロック化し、次いで固液分離することを
特徴とする汚水の処理方法。3. A sewage characterized by adding a powdery, foamable, floc-forming complex coagulant to sewage, stirring and dispersing it under foaming, then flocculating contaminants, and then solid-liquid separation. Processing method.
の請求項１又は２記載の処理剤を添加、撹拌し、発泡下
に分散させ、その後汚染物質をフロック化し、次いで固
液分離することを特徴とする汚水の処理方法。4. The treatment agent according to claim 1, which is a powdery foamable and floc-forming agent, is added to sewage, stirred and dispersed under foaming, after which pollutants are flocculated and then solid-liquid separated. A method for treating sewage characterized by the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3399296A JPH09225208A (en) | 1996-02-21 | 1996-02-21 | Sewage treating agent and treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3399296A JPH09225208A (en) | 1996-02-21 | 1996-02-21 | Sewage treating agent and treating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09225208A true JPH09225208A (en) | 1997-09-02 |
Family
ID=12401984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3399296A Pending JPH09225208A (en) | 1996-02-21 | 1996-02-21 | Sewage treating agent and treating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09225208A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1176706A (en) * | 1997-09-10 | 1999-03-23 | Masujiro Arita | Special solid fine powdery flocculant composition |
| WO1999024365A1 (en) * | 1997-11-07 | 1999-05-20 | Magyar Tudományos Akadémia Kémiai Kutatóközpont | Composition and process for the removal of the phosphate ion content of waters |
| JP2002514505A (en) * | 1998-05-14 | 2002-05-21 | ヴィルバイト トーマス | Method for treating water, soil, sediment and / or silt |
| JP2003093803A (en) * | 2001-09-27 | 2003-04-02 | Daicel Chem Ind Ltd | Oil-containing wastewater treatment method |
| JP2007152344A (en) * | 2005-11-08 | 2007-06-21 | Zenitaka Corp | Powder muddy water treatment agent, muddy water dehydrating method, and muddy water volume-reduction device |
| JP2007216146A (en) * | 2006-02-16 | 2007-08-30 | Nippon Steel Corp | Treating method of dust collection drain from metal resource recovery melting furnace |
| JP2007216201A (en) * | 2006-02-15 | 2007-08-30 | Npo Machinami Ikuseikai | Natural flocculation precipitant for water purification |
| JP2010529904A (en) * | 2007-06-15 | 2010-09-02 | オムヤ・デイベロツプメント・アー・ゲー | Surface-reacted calcium carbonate for water treatment in combination with a hydrophobic adsorbent |
| CN102583600A (en) * | 2012-03-22 | 2012-07-18 | 杭州一清环保工程有限公司 | Composite purifying agent used for purifying sewage in river channel |
| WO2014064073A1 (en) * | 2012-10-26 | 2014-05-01 | Clariant International Ltd. | Method and composition for water purification and sludge dewatering |
| JP2014184416A (en) * | 2013-03-25 | 2014-10-02 | Kajima Corp | Flocculant composition and method of treating polluted water |
| JP2015221406A (en) * | 2014-05-22 | 2015-12-10 | 黒崎白土工業株式会社 | Sewage disposal agent |
| CN109248659A (en) * | 2018-10-26 | 2019-01-22 | 芜湖飞尚非金属材料有限公司 | A kind of refuse landfill bentonite base inorganic agent and preparation method thereof |
-
1996
- 1996-02-21 JP JP3399296A patent/JPH09225208A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1176706A (en) * | 1997-09-10 | 1999-03-23 | Masujiro Arita | Special solid fine powdery flocculant composition |
| WO1999024365A1 (en) * | 1997-11-07 | 1999-05-20 | Magyar Tudományos Akadémia Kémiai Kutatóközpont | Composition and process for the removal of the phosphate ion content of waters |
| GB2346875A (en) * | 1997-11-07 | 2000-08-23 | Magyar Tudomanyos Akademia | Composition and process for the removal of the phosphate ion content of waters |
| JP2002514505A (en) * | 1998-05-14 | 2002-05-21 | ヴィルバイト トーマス | Method for treating water, soil, sediment and / or silt |
| JP2003093803A (en) * | 2001-09-27 | 2003-04-02 | Daicel Chem Ind Ltd | Oil-containing wastewater treatment method |
| JP2007152344A (en) * | 2005-11-08 | 2007-06-21 | Zenitaka Corp | Powder muddy water treatment agent, muddy water dehydrating method, and muddy water volume-reduction device |
| JP4655279B2 (en) * | 2006-02-15 | 2011-03-23 | 特定非営利活動法人まちなみ育成会 | Natural material water purification coagulating sedimentation agent |
| JP2007216201A (en) * | 2006-02-15 | 2007-08-30 | Npo Machinami Ikuseikai | Natural flocculation precipitant for water purification |
| JP2007216146A (en) * | 2006-02-16 | 2007-08-30 | Nippon Steel Corp | Treating method of dust collection drain from metal resource recovery melting furnace |
| JP4607790B2 (en) * | 2006-02-16 | 2011-01-05 | 新日本製鐵株式会社 | Dust collection wastewater treatment method from metal resource recovery melting furnace |
| JP2010529904A (en) * | 2007-06-15 | 2010-09-02 | オムヤ・デイベロツプメント・アー・ゲー | Surface-reacted calcium carbonate for water treatment in combination with a hydrophobic adsorbent |
| CN102583600A (en) * | 2012-03-22 | 2012-07-18 | 杭州一清环保工程有限公司 | Composite purifying agent used for purifying sewage in river channel |
| WO2014064073A1 (en) * | 2012-10-26 | 2014-05-01 | Clariant International Ltd. | Method and composition for water purification and sludge dewatering |
| CN104837775A (en) * | 2012-10-26 | 2015-08-12 | 克拉里安特国际有限公司 | Method and composition for water purification and sludge dewatering |
| JP2014184416A (en) * | 2013-03-25 | 2014-10-02 | Kajima Corp | Flocculant composition and method of treating polluted water |
| JP2015221406A (en) * | 2014-05-22 | 2015-12-10 | 黒崎白土工業株式会社 | Sewage disposal agent |
| CN109248659A (en) * | 2018-10-26 | 2019-01-22 | 芜湖飞尚非金属材料有限公司 | A kind of refuse landfill bentonite base inorganic agent and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH09225208A (en) | Sewage treating agent and treating method | |
| JP2007061718A (en) | Composite flocculant | |
| JP2008106088A (en) | Powder solidifying material for soft mud soil and method for producing the same | |
| CN103864190A (en) | Multifunctional water purifier and preparation method thereof | |
| JPH0741277B2 (en) | Waste treatment agent and waste treatment method | |
| JP3715615B2 (en) | Flocculant for wastewater treatment | |
| JP2005334730A (en) | Composition for sludge solidification and sludge solidification method | |
| JP2004160330A (en) | Sludge treatment method | |
| JP4816374B2 (en) | Coagulation method of high water content sludge | |
| JP2007061749A (en) | Method for treating cement-containing waste liquid | |
| JP2007007535A (en) | Solid-liquid separation method of muddy water | |
| JPS62237913A (en) | Treating method and treating agent for polluted water | |
| JP2931775B2 (en) | Meat fish processing wastewater treatment agent and treatment method | |
| JPS59228906A (en) | Water treating agent | |
| JP2002153866A (en) | Method for treating waste water containing dioxin | |
| JP3880712B2 (en) | Treatment method of dredged mud | |
| JPH07236802A (en) | Sewage treatment aid | |
| JPH0938414A (en) | Flocculating precipitant | |
| JP4828378B2 (en) | Powdered muddy water treatment agent, muddy water dewatering method, and muddy water volume reducing treatment device | |
| JPH03161099A (en) | Treatment process for waste sludge containing bentonite | |
| JP4164431B2 (en) | Flocculant | |
| JP3005597B2 (en) | Treatment of acidic wastewater | |
| JP3398182B2 (en) | Sludge treatment method and treatment material used therefor | |
| JPH09192674A (en) | Flocculating method and flocculant | |
| JP2008036606A (en) | Method and apparatus for treating soluble cod component-containing water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Effective date: 20051003 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060606 |
|
| A02 | Decision of refusal |
Effective date: 20061017 Free format text: JAPANESE INTERMEDIATE CODE: A02 |