JPS6087813A - Coagulating, settling and solidifying agent - Google Patents
Coagulating, settling and solidifying agentInfo
- Publication number
- JPS6087813A JPS6087813A JP19410783A JP19410783A JPS6087813A JP S6087813 A JPS6087813 A JP S6087813A JP 19410783 A JP19410783 A JP 19410783A JP 19410783 A JP19410783 A JP 19410783A JP S6087813 A JPS6087813 A JP S6087813A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- flocculant
- agent
- solidifying
- settling
- 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
- 230000001112 coagulating effect Effects 0.000 title abstract description 4
- 239000002243 precursor Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 40
- 238000007711 solidification Methods 0.000 claims description 29
- 230000008023 solidification Effects 0.000 claims description 29
- 239000004568 cement Substances 0.000 claims description 27
- 229920000642 polymer Polymers 0.000 claims description 25
- 238000004062 sedimentation Methods 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 230000015271 coagulation Effects 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 6
- 229920000620 organic polymer Polymers 0.000 claims description 4
- 244000005700 microbiome Species 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 33
- 239000003795 chemical substances by application Substances 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000000701 coagulant Substances 0.000 abstract description 10
- 125000000129 anionic group Chemical group 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 125000002091 cationic group Chemical group 0.000 abstract description 5
- 229920001577 copolymer Polymers 0.000 abstract description 5
- 239000010865 sewage Substances 0.000 abstract description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 abstract description 4
- 229910001653 ettringite Inorganic materials 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 4
- 229940047670 sodium acrylate Drugs 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 239000000843 powder Substances 0.000 description 10
- 238000004090 dissolution Methods 0.000 description 8
- 241000567769 Isurus oxyrinchus Species 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005189 flocculation Methods 0.000 description 5
- 230000016615 flocculation Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 4
- 150000003839 salts Chemical group 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 230000003311 flocculating effect Effects 0.000 description 3
- 239000010800 human waste Substances 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
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920006317 cationic polymer Polymers 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- -1 N,N-dimethylaminoethyl Chemical group 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229920000831 ionic polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical group 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は浚渫ヘト[I、都市土木泥水、下水し尿処理施
設における有機汚泥等の凝集沈降固化処理材に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coagulation sedimentation solidification treatment material for dredging, urban civil engineering mud, organic sludge, etc. in sewage and human waste treatment facilities.
従来浚渫ヘトtコ、都市土木泥水、下水し尿処理施設に
於ける有機汚泥等の汚泥の凝集沈降固化処理方法として
は、上記汚泥に対してアニオン系、ノニオン系又はカチ
オン系高分子凝集剤を添加して凝集又は脱水処理を行な
い、凝集汚泥にセメン[系の固化材を加えて固化処理す
る方法、また簡便には上記汚泥に対して直接上メン1−
系の固化材を添加して固化処理する方法等が行なわれて
いる。Conventional methods for coagulating, settling, and solidifying sludge such as organic sludge in dredging waste, urban civil engineering mud, and sewage human waste treatment facilities include adding an anionic, nonionic, or cationic polymer flocculant to the sludge. A method of solidifying the flocculated sludge by adding a cement-based solidifying agent to the flocculated sludge, or a method of solidifying the flocculated sludge by adding a cement-based solidifying agent to the flocculated sludge.
A method of solidifying by adding a solidifying agent has been used.
しかしながら、これらの方法は処理工程が煩雑であった
り、沈降固化速度が遅かったり、沈降固化体の強度が小
さい等の欠点をHしている。However, these methods have drawbacks such as complicated treatment steps, slow sedimentation and solidification rate, and low strength of the sedimentation and solidification.
本発明者等は、従来のこれらの欠点に鑑み検問を加えた
結果本発明を完成した。The present inventors completed the present invention as a result of further investigation in view of these conventional drawbacks.
即ち、本発明はエトリンガイ[・前駆物質組成物を含有
するセメント系の固化材に微粉末の高分子凝集剤を配合
してなる凝集沈降固化処理材である。That is, the present invention is a coagulation-sedimentation-treated material prepared by blending a finely powdered polymer flocculant with a cement-based solidification material containing an Ettringai precursor composition.
本発明におけるセメント系固化材は工1−リンガーイト
前駆物質組成物を含有するセメンI−系の固化材であっ
て、対象汚泥を固化することが可能であればいかなるタ
イプの固化材でもよいが、固形分を凝集沈降し、しかる
後汚泥を効果的に固化するためには、水和反応によって
エトリンガイトを多量に生成する組成物からなる固(ヒ
(71が好ましい。The cement-based solidifying material in the present invention is a cement I-based solidifying material containing a ringite precursor composition, and may be any type of solidifying material as long as it can solidify the target sludge. In order to coagulate and settle the solid content and then effectively solidify the sludge, it is preferable to use a solid (71) made of a composition that produces a large amount of ettringite through a hydration reaction.
この理由は先ず第1に工1リンガイl[3caO・Al
103 ・ 3CaSO4・32112 olは、その
化学式が示すように自重の4586が水であり汚泥の含
水率を低減するすJ果が著しいからである。また工1リ
ンガ・イ1は針状の結晶であるため含水率が高いヘドロ
でも土粒子間に工I−リンガイ1の針状の結晶による架
橋を形成し土粒子を結びつけ強度を発現することが可能
である。また一般のセメン1では1機酸が共存すると固
化がさまたげられるが、工1−リンガ・イトを形成jる
水和反応は有機酸の存在下でも影響が少なく、有機系高
分子凝集剤との併用がijJ能である。The reason for this is, first of all,
This is because, as its chemical formula shows, 103.3CaSO4.32112 ol has 4586 of its own weight as water, and has a remarkable effect on reducing the water content of sludge. In addition, since Ku-1 Ringai-1 is a needle-shaped crystal, even in sludge with a high moisture content, the needle-shaped crystals of Ku-I-Ringai-1 form bridges between soil particles, binding the soil particles together and developing strength. It is possible. In addition, in general cement 1, solidification is hindered when monoacid coexists, but the hydration reaction that forms cement 1-ringite is less affected even in the presence of organic acids, and it is difficult to combine with organic polymer flocculants. Combined use is ijj function.
さらに工l・リンガーイ1−を生成するためには水和の
進行の過程で液相中にCa 24.Δ13+のような陽
イオンやOIド、SO七イオン等の陰イオンが存在する
ごとになり、後に示す凝集沈降効果に大きく関係してお
り、無機系の凝集剤を添加したのと同様な効果をもたら
している。Furthermore, in order to generate Ca 24. and Ringai 1-, Ca 24. The presence of cations such as Δ13+ and anions such as OI do and SO7 ions is greatly related to the flocculation-sedimentation effect shown later, and produces an effect similar to that of adding an inorganic flocculant. is bringing.
配合する有機系高分子凝集剤としては、粉末ならば通常
に使用されているものが1吏用出来るが、対象物により
選択する必要がある。浚渫−川口、都市土木泥水等には
アニオン系又はノニオン系凝集剤が好ましく、例えばポ
リアクリルアミド、ポリアクリルアミドの部分加水分解
物、アクリルアミドとアクリル酸す[・リウム共重合体
等が挙げられる。As the organic polymer flocculant to be blended, if it is a powder, one ordinarily used one can be used, but it must be selected depending on the object. Anionic or nonionic flocculants are preferable for dredging, river mouths, urban civil engineering mud, etc., such as polyacrylamide, partial hydrolyzate of polyacrylamide, and copolymer of acrylamide and acrylic acid.
一方下水、し尿処理施設の余剰汚泥、消化汚泥等の有機
汚泥の脱水固化処理を考える場合には、カチオン系のも
のが好ましく例えばジアルキルアミノアルキル(メタ)
アクリレ−1〜の3級塩もしくは4級アンモニウム塩の
単独重合体もしくは他のビニル系R量体との共重合体、
ポリアクリルアミドのカチオン変成物等が挙げられる。On the other hand, when considering dehydration and solidification treatment of organic sludge such as sewage, surplus sludge from human waste treatment facilities, and digested sludge, cationic sludge is preferred, such as dialkylaminoalkyl (meth).
Homopolymers of tertiary salts or quaternary ammonium salts of acrylate-1 or copolymers with other vinyl R-mers,
Examples include cationic modified polyacrylamide.
また配合する高分子凝集剤は微粉末であることが必要で
ありその粒径は0.3 +u以下であることが好ましく
、0.05〜0.3鰭であることがさらに好ましい。粉
末の粒径が0.3鰭を超えると高分子凝集剤の水に対す
る溶解速度が遅くなり、凝集効果が添加後すぐに発現し
ないという問題がある。又高分子凝集剤を0.05 +
n未満に微粉砕した場合、微わ)砕時にポリマー鎖のり
j断が起こり、分子量が下って凝集性能が低下するので
、むやみに微粉砕することは好ましくないが、品分を凝
集剤の添加量を増加さ−Vるごとにより性能を維持する
ことも可能である。The polymer flocculant to be blended must be a fine powder, and its particle size is preferably 0.3+u or less, more preferably 0.05 to 0.3 fins. When the particle size of the powder exceeds 0.3 fins, the dissolution rate of the polymer flocculant in water becomes slow and there is a problem that the flocculation effect is not expressed immediately after addition. Also, add polymer flocculant to 0.05 +
If the product is finely pulverized to less than n, polymer chain shearing will occur during pulverization, which will lower the molecular weight and reduce flocculating performance. It is also possible to maintain performance by increasing the amount -V.
高分子凝集剤の微粉砕方法としては、乾式粉砕法であれ
ば例えばスクリ ンミル、ボ ルミル等の通常の微粉砕
方法がとれるが、長時間80℃を超える高温にポリマ
がさらされると、ポリマの架橋が進行し、劣化が起こる
ので、好ましくは80℃以下さらに好ましくは60°C
以下に冷却しながら微粉砕する方法をとることが好まし
い。また冷凍粉砕を行うことも可能である。As for the method of finely pulverizing the polymer flocculant, if it is a dry pulverizing method, a normal fine pulverizing method such as a screen mill or a voluminator can be used.
The temperature is preferably 80°C or lower, more preferably 60°C, since crosslinking of the polymer will proceed and deterioration will occur if exposed to
It is preferable to use a method of finely pulverizing the powder while cooling. It is also possible to carry out frozen grinding.
高分子凝集剤は比較的吸湿性の物質であり、方セメント
系の固化月は水分を嫌うので、なるべ(吸湿しない状態
で粉砕を行なう必要がある。The polymer flocculant is a relatively hygroscopic substance, and the cement-based solidifying material dislikes moisture, so it is necessary to grind it in a state where it does not absorb moisture.
高分子凝集剤の配合量は対象′、r!、濁物もしくは汚
泥の質、濃度、p Hによっても異なるが、一般にはセ
メント系固化月に対し0. (1001重量%〜1゜(
〕重量%の範囲で配合するのが好ましい。凝集剤の添加
量が過少であると当然のことながらフロックは生成しな
いが、あまりにも過多であるとポリマー同志の反発によ
り凝集性能は低下する。The blending amount of the polymer flocculant is subject to ', r! Although it varies depending on the quality, concentration, and pH of the turbidity or sludge, it is generally 0.0% for cement-based solidification. (1001% by weight ~ 1゜(
] It is preferable to blend within the range of % by weight. If the amount of flocculant added is too small, no flocs will naturally be formed, but if it is too large, the flocculation performance will deteriorate due to repulsion between the polymers.
汚泥の濃度が高くなったり、pHが最適範囲を外れたり
、有機質汚泥量が多くなると配合量を増加することによ
り性能を維持することも可能である。When the concentration of sludge becomes high, the pH goes out of the optimum range, or the amount of organic sludge increases, it is possible to maintain performance by increasing the blending amount.
高分子凝集剤とセメント系の固化材の混合方法について
は通常の混合方法即ぢ水平円筒型混合機、V型混合機、
二重円錐型混合機、リボン型混合機、円錐スクリュー型
混合機等を使用した混合方法が採用されるが、高分子凝
集剤の配合量が微量であるので、極力均一に混合する必
要がある。Regarding the mixing method of polymer coagulant and cement solidifying agent, the usual mixing method is horizontal cylindrical mixer, V-type mixer,
Mixing methods using double conical mixers, ribbon mixers, conical screw mixers, etc. are adopted, but since the amount of polymer flocculant blended is small, it is necessary to mix as uniformly as possible. .
高分子凝集剤とセメン1系固化利のカサ比重が異なるの
で、混合装置内で分級が起こるような混合方法は避ける
必要がある。Since the bulk specific gravity of the polymer flocculant and the cement 1 solidification material are different, it is necessary to avoid a mixing method that causes classification in the mixing device.
本発明の凝集沈降固化処理材は、対象とする懸濁物もし
くは汚泥に直接添加され凝集と固化が行なわれるが、添
加方法、添加量等は従来のセメン1−系固化月の添加方
法、添加(1と同様に行われる。The coagulation-sedimentation solidification treatment material of the present invention is directly added to the target suspended matter or sludge to cause flocculation and solidification, but the addition method, amount, etc. (This is done in the same way as 1.
本発明の凝集沈降固化処理Hには、セノン1の固化を促
進する促進剤を配合することができる。促進剤は水和液
相中のカルシウム−イオン濃度をコン1〜1;1−ルす
る作用、七メン1粒子のまわりに生成した水和物を除去
する作用及びエトリンガイトどを速やかに形成する作用
を有している。The coagulation-sedimentation solidification treatment H of the present invention may contain an accelerator that promotes the solidification of cenone 1. The accelerator has the effect of controlling the calcium ion concentration in the hydrated liquid phase, the effect of removing the hydrate formed around the Shichimen 1 particle, and the effect of rapidly forming ettringite etc. have.
促進剤としては、例えは塩化カルシウム、炭酸す1リウ
ム、アルミン酸カルシウム等があげられるまた本発明の
凝集沈降固化処理材には、凝集沈降固化処理後の固化物
中に生成する水酸化カルシウムを中和する中性化利料を
配合することもできる。中性化材料を配合することによ
り土壌のアルカリ度を緩和することができ、116物の
生育等に好適である。Examples of the accelerator include calcium chloride, monolium carbonate, calcium aluminate, etc. In addition, the coagulation-sedimentation-solidified material of the present invention may contain calcium hydroxide produced in the solidified material after the coagulation-sedimentation treatment. A neutralization charge for neutralization can also be added. By adding a neutralizing material, the alkalinity of the soil can be reduced, making it suitable for the growth of 116 species.
中性化材料としては、例えば硫酸アルミニウム、スラグ
粉末、活性シリカ等があげられる。 本発明の凝集沈降
固化処理材は次のような作用効果を奏するのである。Examples of the neutralizing material include aluminum sulfate, slag powder, and activated silica. The coagulation sedimentation solidified material of the present invention has the following effects.
(1)凝集沈降と同化を同時に行うので、凝集剤を熔吊
:搬送する装置を必要としない。氷中固化処理も可能と
なる。(1) Since flocculation and sedimentation and assimilation are performed at the same time, there is no need for a device to suspend and transport the flocculant. Solidification treatment in ice is also possible.
(21 FA末高分子凝集剤を使用する場合の欠点とし
てママコの生成がある。粉末高分子凝集剤を溶解させる
際に、少しづつ水中に分散させてやれは比較的/8解が
可能である。しかし一時に水中へ投入した場合には、粉
末の表面が濡れた状態で非常に粘着性が大となり、粉末
が凝集して糊状の塊となりいわゆるママコを発生する。(21 A disadvantage of using an FA-terminated polymer flocculant is the formation of mako.When dissolving the powdered polymer flocculant, it is possible to achieve a relatively /8 solution by dispersing it little by little in water. However, if the powder is put into water all at once, the surface of the powder becomes wet and extremely sticky, causing the powder to coagulate and form a glue-like mass, resulting in so-called mako.
この塊は攪拌等によっても壊すことが出来ず数時間ある
いは数日間攪拌しても塊を完全に熔解することは不可能
であり、非常に不経済であるとともに熔解槽の内部に付
着しやすく、はがれにくい等いろいろな問題を発生ずる
。This lump cannot be broken by stirring, etc., and it is impossible to completely melt the lump even after stirring for several hours or days, which is very uneconomical and tends to stick to the inside of the melting tank. This causes various problems such as difficulty in peeling off.
ママコの発生を防止するには熔解初期に於いて粒子を極
力均一に分散させ、粒子同士を接着させないことが−・
番であるが、本発明の凝集固化処理料の場合は、多量の
セメントが分散媒となり、高分子凝集剤の粒子同士が接
着することが少ないのでママコの発生が防止可能である
。In order to prevent the occurrence of mako, it is necessary to disperse the particles as uniformly as possible during the initial stage of melting, and to prevent the particles from adhering to each other.
However, in the case of the coagulation and solidification treatment material of the present invention, a large amount of cement acts as a dispersion medium, and particles of the polymer flocculant are less likely to adhere to each other, so it is possible to prevent the occurrence of lumps.
また、セメント中の塩基性成分により分散性が向上し、
溶解が促進されるためママコの発生が防止可能である。In addition, the basic components in cement improve dispersibility,
Since dissolution is promoted, it is possible to prevent the occurrence of mako.
(3)高分子凝集剤の水溶液は非常に粘度が高いので凝
集剤熔解液と対象)12!濁物もしくは汚泥との均一な
る混合がなかなかむづかしいが、本発明でばlη泥と混
合後に、凝集性能が発現し、かつセメン1中の多量の無
機塩が粘度低減効果を示すので凝集剤と汚泥の混合がき
わめて容易である。(3) Since the aqueous solution of the polymer flocculant has a very high viscosity, it is referred to as the flocculant solution) 12! Although uniform mixing with turbidity or sludge is quite difficult, in the present invention, flocculating performance is developed after mixing with the mud, and a large amount of inorganic salts in cement 1 exhibits a viscosity-reducing effect, so that the coagulant and sludge can be mixed together. It is extremely easy to mix.
又脱水機による脱水を行なった場合、凝集沈降固化処理
材が脱水助剤となっていわゆるみずのちを形成し、汚泥
層内部の水分移動速度が速くなり含水率の低減がはから
れる。In addition, when dewatering is performed using a dehydrator, the coagulated sedimentation solidified material acts as a dehydration aid and forms so-called water, increasing the rate of water movement within the sludge layer and reducing the water content.
(4)セメン1系の固化祠がフ1.Jツクの核となり有
機物含有量の多い難処理排水でもフしドックの沈降速度
が大となり、上澄の清澄性も向上する。(4) Cement 1 type solidification shrine is F1. The core of J-Tsuku is that even difficult-to-treat wastewater with a high organic matter content increases the sedimentation rate of the drain and improves the clarity of the supernatant.
(5)水中の′.Y!.濁物は一般的に負の電(!!J
をもつので、浚渫ヘドロ、都市土木泥水等は硫酸バンド
、ポリ塩化アルミ等の無機塩により表面電荷の中和を行
ったのち、アニオン系又はノニオン系の高分子凝集剤を
添加するのが普通であるが、本発明ではセメント系の固
化処理材中の多量の無機塩が表面電荷の中和を行うので
、無機塩のfjf用を必要としない。(5) ′ in water. Y! .. Turbid matter generally has a negative charge (!!J
Therefore, it is common practice to neutralize the surface charge of dredging sludge, urban civil engineering mud, etc. with inorganic salts such as sulfuric acid or polyaluminum chloride, and then add an anionic or nonionic polymer flocculant. However, in the present invention, a large amount of inorganic salt in the cement-based solidified material neutralizes the surface charge, so there is no need for inorganic salt for fjf.
(6)カチオン系凝集剤とアニオン系凝集剤を併用する
と(5)に述べたと同様な理由で凝集性能、脱水性能が
向上する事はよく知られた事実である。カチオン系凝集
剤とアニオン系凝集剤を同時に一つの溶解槽で熔解する
とポリイオンコンプレックスが生成し、水不溶性となる
ので、溶解槽が2基a・要であるが、本発明の場合は溶
解と凝集がほぼ同時に起こると考えられるので併用が容
易に可能である。(6) It is a well-known fact that when a cationic flocculant and an anionic flocculant are used in combination, flocculating performance and dewatering performance are improved for the same reason as stated in (5). When a cationic flocculant and an anionic flocculant are simultaneously melted in one dissolution tank, a polyion complex is generated and becomes water-insoluble, so two dissolution tanks are required, but in the case of the present invention, dissolution and flocculation are required. Since these are thought to occur almost simultaneously, their combined use is easily possible.
(7)高分子凝集剤の溶解液は、光、温度、溶存酸素等
により経時劣化を起ごずが、本発明は熔解と使用が同時
であるので劣化を起こさない。(7) A solution of a polymer flocculant does not deteriorate over time due to light, temperature, dissolved oxygen, etc., but in the present invention, since it is melted and used at the same time, no deterioration occurs.
次に参考例、実施例及び比較例をあげて本発明をさらに
具体的に説明する。Next, the present invention will be explained in more detail with reference to Reference Examples, Examples, and Comparative Examples.
なお、各側におりる%は重量%を意味する。Note that the percentages on each side mean percentages by weight.
また使用した高分子凝集剤及びセメンl系固jヒ材は次
のものである。The polymer coagulant and cement-based hardening material used were as follows.
高分子&2築剤
アニオン系高分子凝集剤(以下凝集剤Aという)組成
アクリルアミド/アクリル酸すl−リウム共重合体から
なる高分子凝集剤
カチオン系高分子凝柴71′lJ(以下凝集剤Bという
)組成
N、N−ジメチルアミノエチルメタクリレ−Iの塩化メ
チルによる四級塩/アクリルアミ1′共重合体からなる
高分子凝集剤
セメンj・系固化材の(以下固化材■という)化学組成
セメン1系固化伺■(以下同化材■という)化学組成
参考例1
凝集剤Aの粉末粒度にる溶解速度の比較を熔解濃度0.
1%で行なった。Polymer & 2 Building Agent Anionic polymer flocculant (hereinafter referred to as flocculant A) Composition Polymer flocculant consisting of acrylamide/sl-lium acrylate copolymer Cationic polymer flocculant 71'lJ (hereinafter referred to as flocculant B) (hereinafter referred to as solidifying material ■), a polymer flocculant consisting of a quaternary salt of methyl chloride of N,N-dimethylaminoethyl methacrylate-I/acrylamide 1' copolymer (hereinafter referred to as solidifying material ■) Composition Cement 1 solidification sample ■ (hereinafter referred to as assimilated material ■) Chemical composition reference example 1 A comparison of the dissolution rate according to the powder particle size of flocculant A at a melt concentration of 0.
It was performed at 1%.
その結果を第1図及び第2図に示す。The results are shown in FIGS. 1 and 2.
参考例2
凝集剤Aの微粉砕品を固化材■に混合した凝集沈降固化
処理材を下記の条件でビーカーに溶解した場合と凝集剤
A微粉砕品と固化材■を別々に添加して熔解した場合の
ママコの発生の有無及びブルックフィールド粘度を測定
した。Reference Example 2 A case where a coagulation sedimentation solidification treatment material in which a finely pulverized product of flocculant A is mixed with a solidifying agent ■ is dissolved in a beaker under the following conditions, and a case where a finely pulverized product of flocculant A and a solidifying agent ■ are added separately and melted. The presence or absence of mako formation and Brookfield viscosity were measured.
その結果を表1に示す。The results are shown in Table 1.
熔解濃度;凝集剤 0.1%
溶解時間;3時間
*セメントのフロックが生成するため、フロック沈降後
の上澄み液の粘度を測定した。″実施例1
凝集剤A微粉末品と固化材■又は■を混合した凝集沈降
固化処理材を、500m1シリンダー中の5%カオリン
懸濁液に添加し5回の混合の後静置し、沈降速度の測定
を行なった。Melting concentration: flocculant 0.1% Dissolution time: 3 hours *Since cement flocs were formed, the viscosity of the supernatant liquid after floc settling was measured. ``Example 1 A flocculation-sedimentation solidification treatment material prepared by mixing a finely powdered flocculant A and a solidification material ■ or ■ is added to a 5% kaolin suspension in a 500ml cylinder, and after mixing 5 times, it is allowed to stand still and allowed to settle. Velocity measurements were taken.
凝集剤とセメント系固化材の配合量、凝集沈降固化処理
材の添加量、固化材の種類等を変え実験を行なった。そ
の結果を表2に示す。Experiments were conducted by changing the amount of flocculant and cement solidifying agent, the amount of coagulation sedimentation solidifying agent added, the type of solidifying agent, etc. The results are shown in Table 2.
この結果から凝集沈降固化処理材は、添加後効果がすぐ
発現し、凝集剤無添加品に比較して著しい6i年効果を
もつことが明らかである。From this result, it is clear that the coagulation-sedimentation and solidification-treated material shows the effect immediately after addition, and has a remarkable 6-year effect compared to the product without the addition of a coagulant.
比較例工
凝集剤Aの0.1%水溶液を別途調製しこれと固化材■
又は■とを5%カオリン懸濁液に別々に添加した場合の
沈降速度を実施例Iと同様の方法で測定した。その結果
を表3に示す。Comparative Example A 0.1% aqueous solution of coagulant A was prepared separately, and this and solidifying agent ■
The sedimentation rate was measured in the same manner as in Example I when (1) and (2) were added separately to a 5% kaolin suspension. The results are shown in Table 3.
表2
表3
実施例2及び比較例2
アライン(3Ca 0 ・3A 120i ・Ca 5
O4)、無水せつこう(CaSO4)などよりなり水和
反応によってエトリンガイトを多量に生成する固化材■
に凝集剤Aを配合し固化処理材を調製した。Table 2 Table 3 Example 2 and Comparative Example 2 Align (3Ca 0 ・3A 120i ・Ca 5
A solidifying material that produces a large amount of ettringite through a hydration reaction, consisting of O4), anhydrous plaster (CaSO4), etc.
A solidified material was prepared by adding flocculant A to the mixture.
この固化処理材を含水率90%のカオリン汚水に10%
添加し、攪拌後内径5LJnφのポリ袋に高さ130印
までに充填し、3時間後の沈降面の高さ及び材令70の
一軸圧縮強さを測定した。その結果を表4に示ず。なお
Φ111圧縮強さは固1ヒ体の−に部及び下部より供
試体を成形し、試験に供した。Add 10% of this solidified material to kaolin wastewater with a water content of 90%.
After stirring, the mixture was filled into a plastic bag with an inner diameter of 5 LJnφ to a height of 130 marks, and the height of the settling surface after 3 hours and the unconfined compressive strength at a material age of 70 were measured. The results are not shown in Table 4. For the compressive strength of Φ111, a specimen was molded from the - part and lower part of a solid body and subjected to the test.
表4
*1:普通ポルトランI゛セメン[−
以上の結果からセメント系固化拐と有機高分子凝集剤を
組合せ使用すると凝集剤により泥分をすみやかに沈降さ
せ固化することが可能である。Table 4 *1: Ordinary Portolan I Cement [- From the above results, it is possible to quickly settle and solidify the mud by using the flocculant when a cement-based solidification agent and an organic polymer flocculant are used in combination.
また固化体は沈降により含水率が低減するので固(IZ
強度も大きく有利である。一方円1ヒ材を単味で添加し
たものは沈降性が悪く固化体の含水率が高く強度も低い
。また普通セメントと凝集剤を組合せ使用した場合には
、沈降性は本発明品と同等であるものの凝集剤がセメン
トの水和反応を妨害するためほとんど強度を発現しない
。In addition, the moisture content of the solidified substance decreases due to sedimentation, so it becomes solid (IZ
It is also highly advantageous in terms of strength. On the other hand, those to which Yen-ichi-hi wood is added alone have poor settling properties, high moisture content of the solidified material, and low strength. Furthermore, when ordinary cement and a flocculant are used in combination, although the settling property is the same as that of the product of the present invention, the flocculant interferes with the hydration reaction of the cement, so almost no strength is developed.
実施例3及び比較例3
固化月■に凝集剤Bを0.6%添加し、凝集沈降固化処
理材を調製した。P II 5.6、S S 2790
0 ppmの下水消化汚泥に該固化処理材を1.2.3
.4%添加後500rpmで30秒攪拌し0.84 k
g/ cJの圧力で圧搾脱水を行ない、含水率を測定し
た。また脱水後の汚泥を5cmφ×]Ocmの円柱型枠
にて成形し材令30の−・軸圧縮強ざをめた(実施例3
)。Example 3 and Comparative Example 3 0.6% of flocculant B was added to the solidified moon to prepare a flocculated sedimentation solidified material. P II 5.6, SS 2790
0 ppm of sewage digested sludge with 1.2.3
.. After adding 4%, stir at 500 rpm for 30 seconds to 0.84 k
Pressure dehydration was performed at a pressure of g/cJ, and the water content was measured. In addition, the sludge after dewatering was molded in a cylindrical mold of 5 cmφ×]Ocm to obtain a material age of 30 - - axial compression strength (Example 3
).
また、上記汚泥に凝集剤Bのみを300ppm添加し、
同様にして一軸圧縮強さをめた(比較例3)。In addition, 300 ppm of flocculant B alone was added to the sludge,
The unconfined compressive strength was measured in the same manner (Comparative Example 3).
その結果を表5に示す。The results are shown in Table 5.
表5
以上のように下水汚泥の処理に本発明の凝集沈降固化処
理材と脱水操作を併用すれば脱水汚泥の含水率を大中に
低減することができるとともに固化強度も充分発揮され
るので汚泥の処理が容易となる。また本発明の凝集沈降
固化処理材の使用に対しては処理材の供給装置以外に特
別な設備を必要としない。Table 5 As shown above, if the coagulation-sedimentation solidification treatment material of the present invention and dewatering operation are used together in the treatment of sewage sludge, the water content of dewatered sludge can be significantly reduced, and the solidification strength can also be sufficiently demonstrated. processing becomes easier. Furthermore, the use of the coagulation-sedimentation and solidification treatment material of the present invention does not require any special equipment other than the treatment material supply device.
第1図及び第2図は参考例1における凝集剤への粉末粒
度による熔解速度を表わすグラフである1・・・・・・
粒径0.833 am以上の凝集剤A2・・・・・・粒
径0.495〜0.833 m++の凝集剤A3・・・
・・・粒径0.351〜0.4951Mの凝集剤A4・
・・・・・粒径0.246〜0.351 mmの凝集剤
A5・・・・・・粒径0.175〜0.246 +uの
凝集剤A特許出願人
東亜合成化学工業株式会社
秩父セメンI・株式会社
本岡通商株式会社
茗/JJ
翠琳4−壓(−+n)
ヌ2凰
募群椅刈 (馴)Figures 1 and 2 are graphs showing the dissolution rate of the flocculant depending on the powder particle size in Reference Example 1.
Flocculant A2 with a particle size of 0.833 am or more... Flocculant A3 with a particle size of 0.495 to 0.833 m++...
...Flocculant A4 with a particle size of 0.351 to 0.4951M.
...Flocculant A5 with a particle size of 0.246 to 0.351 mm...Flocculant A with a particle size of 0.175 to 0.246 +U Patent applicant Chichibu Cement, Toagosei Chemical Industry Co., Ltd. I. Motooka Tsusho Co., Ltd. Mei/JJ Suirin 4-壓 (-+n) Nu 2 凰Recruitment Gun Igari (Familiar)
Claims (1)
ン1系の固化材に微わ)末のn機系高分子凝集剤を配合
してなる凝集沈降固化処理材。 2、有;幾系高分子凝集剤の粒径が0.3鴎以下である
特許請求の範囲第1項記載の凝集沈降固化処理材。 3、セメント系の固化材に対する有機系高分子凝集剤の
配合計が0.000 J〜1.0重■%である特許請求
の範囲第1項記載の凝集沈降固化処理材。[Scope of Claims] 1. A coagulation-sedimentation solidification material prepared by blending a cement 1-based solidification material containing a precursor composition with a microorganism-based polymer flocculant. 2. Yes; The coagulation, sedimentation, and solidification treated material according to claim 1, wherein the particle size of the multi-system polymer flocculant is 0.3 mm or less. 3. The coagulation-sedimentation solidification material according to claim 1, wherein the amount of organic polymer flocculant added to the cement solidification material is 0.000 J to 1.0% by weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19410783A JPS6087813A (en) | 1983-10-19 | 1983-10-19 | Coagulating, settling and solidifying agent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19410783A JPS6087813A (en) | 1983-10-19 | 1983-10-19 | Coagulating, settling and solidifying agent |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6087813A true JPS6087813A (en) | 1985-05-17 |
Family
ID=16319045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19410783A Pending JPS6087813A (en) | 1983-10-19 | 1983-10-19 | Coagulating, settling and solidifying agent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6087813A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6451198A (en) * | 1987-08-21 | 1989-02-27 | Telnite Ltd | Modifying method for drilling soil |
JPH01139198A (en) * | 1987-11-26 | 1989-05-31 | Terunaito:Kk | Method for reforming sludge or the like |
US5112500A (en) * | 1990-06-29 | 1992-05-12 | Allied Colloids Limited | Purification of aqueous liquor |
US5178774A (en) * | 1990-06-29 | 1993-01-12 | Allied Colloids Limited | Purification of aqueous liquor |
EP0623559A1 (en) * | 1993-05-03 | 1994-11-09 | A + F ANLAGEN-, UMWELT- UND FILTERTECHNIK GmbH & Co. | Process for separating dissolved sulfates from aqueous solutions, especially from waste waters |
JPH09176644A (en) * | 1995-12-27 | 1997-07-08 | Okumuragumi Doboku Kogyo Kk | Agent for solidifying water-containing soil and method therefor |
JP2010240519A (en) * | 2009-04-01 | 2010-10-28 | Daiyanitorikkusu Kk | Method of treating water to be treated containing inorganic sludge |
JP2012187482A (en) * | 2011-03-09 | 2012-10-04 | Kurita Water Ind Ltd | Method for treating water circulating through wet coating booth |
JP2013188658A (en) * | 2012-03-13 | 2013-09-26 | Parker Corp | Paint mist treatment agent for wet paint booth circulating water, and wet paint booth circulating water recovery apparatus |
CN109833586A (en) * | 2019-01-23 | 2019-06-04 | 东南大学 | A kind of high efficiency, low cost processing method of liquid debris |
-
1983
- 1983-10-19 JP JP19410783A patent/JPS6087813A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6451198A (en) * | 1987-08-21 | 1989-02-27 | Telnite Ltd | Modifying method for drilling soil |
JPH0415038B2 (en) * | 1987-08-21 | 1992-03-16 | Telnite Ltd | |
JPH01139198A (en) * | 1987-11-26 | 1989-05-31 | Terunaito:Kk | Method for reforming sludge or the like |
JPH0442080B2 (en) * | 1987-11-26 | 1992-07-10 | Telnite Ltd | |
US5112500A (en) * | 1990-06-29 | 1992-05-12 | Allied Colloids Limited | Purification of aqueous liquor |
US5178774A (en) * | 1990-06-29 | 1993-01-12 | Allied Colloids Limited | Purification of aqueous liquor |
EP0623559A1 (en) * | 1993-05-03 | 1994-11-09 | A + F ANLAGEN-, UMWELT- UND FILTERTECHNIK GmbH & Co. | Process for separating dissolved sulfates from aqueous solutions, especially from waste waters |
JPH09176644A (en) * | 1995-12-27 | 1997-07-08 | Okumuragumi Doboku Kogyo Kk | Agent for solidifying water-containing soil and method therefor |
JP2010240519A (en) * | 2009-04-01 | 2010-10-28 | Daiyanitorikkusu Kk | Method of treating water to be treated containing inorganic sludge |
JP2012187482A (en) * | 2011-03-09 | 2012-10-04 | Kurita Water Ind Ltd | Method for treating water circulating through wet coating booth |
JP2013188658A (en) * | 2012-03-13 | 2013-09-26 | Parker Corp | Paint mist treatment agent for wet paint booth circulating water, and wet paint booth circulating water recovery apparatus |
CN109833586A (en) * | 2019-01-23 | 2019-06-04 | 东南大学 | A kind of high efficiency, low cost processing method of liquid debris |
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