JPS5867399A - Dehydrating agent and using method - Google Patents
Dehydrating agent and using methodInfo
- Publication number
- JPS5867399A JPS5867399A JP56167679A JP16767981A JPS5867399A JP S5867399 A JPS5867399 A JP S5867399A JP 56167679 A JP56167679 A JP 56167679A JP 16767981 A JP16767981 A JP 16767981A JP S5867399 A JPS5867399 A JP S5867399A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- org
- dehydrating agent
- humus
- organic
- 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
- 239000012024 dehydrating agents Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 9
- 239000010802 sludge Substances 0.000 claims abstract description 33
- 229920000620 organic polymer Polymers 0.000 claims abstract description 21
- 239000003864 humus Substances 0.000 claims abstract description 11
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims description 6
- 239000003610 charcoal Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 abstract description 11
- 230000018044 dehydration Effects 0.000 abstract description 10
- 239000008394 flocculating agent Substances 0.000 abstract description 6
- 229920000642 polymer Polymers 0.000 abstract description 6
- 239000010865 sewage Substances 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 229920006317 cationic polymer Polymers 0.000 abstract description 2
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 abstract 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 239000003415 peat Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 239000010800 human waste Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 241001070941 Castanea Species 0.000 description 1
- 235000014036 Castanea Nutrition 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 241000208422 Rhododendron Species 0.000 description 1
- 241000218998 Salicaceae Species 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は脱水剤および使用法ｆこ関するものである。[Detailed description of the invention] The present invention relates to dehydrating agents and methods of use.
従来より有機性汚泥たとえば下水、し尿などの余剰汚泥
を脱水処理する場合、無機系の塩化第二鉄（塙鉄）や消
石灰（石灰）などを併用または単独使用し、真空式脱水
機（オリバー脱水機など）で脱水処理し、得られるケー
キを焼却するいわゆる地鉄石灰法が主流であった。しか
し塙鉄石灰法は多量の石灰を使用する（たとえば地鉄５
％、石灰３０％）ため、脱離孜のＰＨは１１〜１２位に
上がりそれを中７ＦＤするため多量の酸を必要としたり
また、脱水処理されたケーキを焼却する場合、ケーキ中
の地鉄９石灰は自大黙せずかつケーキの嵐は３５％もふ
えるため、焼却に必要な燃料費が多くか−るなどの欠点
かある。また高分子凝集剤単独では真空式脱水機の場合
、脱水できにくいという欠点がある。Traditionally, when dehydrating organic sludge, such as sewage or human waste, surplus sludge, such as sewage or human waste, has been dehydrated by using inorganic ferric chloride (Hanwa Tetsu) or slaked lime (lime) together or alone. The mainstream was the so-called jitetsu-lime method, which involved dehydration using a machine (such as a machine) and incineration of the resulting cake. However, the Hanawa Tetsu lime method uses a large amount of lime (for example, Jitetsu 5
%, lime 30%), the PH of the dehydrated water rises to 11 to 12, and a large amount of acid is required to perform medium 7FD. 9 Lime does not hold back and the cake storm increases by 35%, so there are disadvantages such as the increased fuel cost for incineration. Furthermore, when using a polymer flocculant alone, there is a drawback that dehydration is difficult in the case of a vacuum dehydrator.
一方、微粉炭と高分子凝集Ａすを併用して有機性汚泥を
脱水処理する方法もあるが、この場合、微粉炭と有機性
汚泥とは高分子凝集剤に対して反応速度がそれぞれ異な
り、微粉炭のみが高分子凝集剤と早く反応してしまうた
め、本来の目的である有機性汚泥のｊ逸水には効果を十
分に発揮できない欠点がある。On the other hand, there is a method of dehydrating organic sludge using a combination of pulverized coal and polymer flocculant, but in this case, pulverized coal and organic sludge have different reaction rates with respect to the polymer flocculant. Since only pulverized coal reacts quickly with the polymer flocculant, it has the disadvantage that it cannot be fully effective in removing water from organic sludge, which is the original purpose.
本発明省らは上記の点ｔこ笛、磁して、新たに’７４
ｈａ質の特長を生かし、これと有機系高分子凝集剤とを
組合せた脱水剤を使１月し、有機性汚泥を処理したとこ
ろ、著しい相乗効果かあることを見出し本発明に到達し
た。The Ministry of Invention et al.
When organic sludge was treated using a dehydrating agent that took advantage of the characteristics of HA and an organic polymer flocculant, it was discovered that there was a significant synergistic effect, and the present invention was achieved.
すなわち本発明は’？４４１目口および冶゛機系１「、
１分子ｄ栗剤を組合せてなる有機性ＩＩＪ泥の固液外１
ｉＪｌｌ性能のすぐれた脱水剤（第一発明）お」：Ｏ・
有機ｊＹ＋：、ｉ／ｊ泥に腐植質を添加し、次いて有機
系高分子凝集剤を添加し、固液分趨口：を行うことを特
徴とする脱水剤の使用法（第二発明）である。In other words, the present invention is '? 441 Eye opening and machine system 1
Solid-liquid organic IIJ mud made by combining 1 molecule D chestnut agent 1
Dehydrating agent with excellent iJll performance (first invention)
Method for using a dehydrating agent characterized by adding humus to organic jY+:, i/j mud, then adding an organic polymer flocculant, and performing solid-liquid separation (second invention) It is.
本発明における腐植質に１−たは腐１“１土）としては
草炭および草炭類似物質かあげられる。In the present invention, the humus (or humus) includes grass charcoal and grass charcoal-like substances.
草炭としては化学大１Ｙ與５．第５０】頁、（昭和３８
年１１月、共立出版株式公ネ１゛定行）に記載されてい
るものがあげられる。具体的に１．ｔ 、：、スコケ（
ミズコ゛ケ科）、ヨシ、スケ、力λ・（イネ不ご１）、
その他ヤナギ、シャクナケなとの低木か長年月をこわｔ
こり凍結枯死、残留してタイ積重に／１°ったものでＪ
）また草炭類似物質としてはりポナーセ１−Ｒ」にンー
Ｗｈ Ａ 判内業陣餐昂）かｉｈげらソ１．る。これは
合体またはその・池の（共）重合１本たとえば３級窒累
含有ビニル単量体単位を有する水溶性ビニル（共）重合
体〔３級窒系含有（メタ）アクリレートもしくは（メタ
）アタリルアミドまたはこれらと酸との塩（共）重合体
など〕；４級窒５に含有ビ・ｉこ７１）め（アられろ。As for the grass charcoal, it is 5. No. 50] page, (Showa 38
Examples include those listed in Kyoritsu Shuppan Co., Ltd. 1. Specifically 1. t, :, Skoke (
Sphagnumaceae), Reed, Suke, Power λ・(Rice Fuggo 1),
Other shrubs such as willows and rhododendrons have been afraid of the moon for many years.
J
) Also, as a substance similar to grass charcoal, it has been used as a substance similar to Hariponase 1-R. Ru. This is a combination of water-soluble vinyl (co)polymers having tertiary nitrogen-containing vinyl monomer units [tertiary nitrogen-containing (meth)acrylates or (meth)atalylamides]. or a salt (co)polymer of these and an acid];
これらのうち好ましいものは３級窒紫含有（メタ）アク
リレートもしくは（メタ）アクリルアミドと酸とのＪｊ
、ｒ（共）〕１１１合および４上記において（共）重合
体とは重合体または／および共重合体を、（メタ）アク
リレ・−１・とけアクリレ・−１−まｔこは／お３（二
びメタアクリレ−１・を示し他の記載もこれと同様の黄
味をボす。Among these, preferred are tertiary nitrogen-purple-containing (meth)acrylates or (meth)acrylamide and acid Jj
. (Methacrylate 1.) Other descriptions also have a similar yellow tinge.
場合により、カシ−オン性高分子ｂ５（１束剤と他の有
機系高分子凝集剤を（Ｊｆ’ ＩＩＪすることムできる
。他の他の有機系高分子凝集剤のｉｊｔはカチオン性高
分子上記の有機系高分子凝集剤の分子量は通常４ｖＯ万
〜１０００万、好ましくは４００万〜６００万である。In some cases, a cationic polymer b5 (1) and another organic polymer flocculant (Jf' IIJ) can be combined. The molecular weight of the above organic polymer flocculant is usually 4vO to 10,000,000, preferably 4,000,000 to 6,000,000.
本発明の脱水剤において’／Ａ ｑｉｌｊｌ賀と有機系
高分子凝集剤の量は種々変えることかできるか、有機性
汚泥の固形分車駕当りの添加１１（として１１へＡＩＩ
Ｆ ’ｃ′■が通量２〜８０％、好ましくは５〜７０％
であり、有機系本発明における有機性汚泥としては下水
９し尿などまたはこれを活性汚泥処理または消化汚泥処
理したものおよび食品廃水から生じ１こ汚泥などがあげ
られる。In the dehydrating agent of the present invention, the amount of organic polymer flocculant and organic polymer flocculant can be varied.
F'c'■ is 2 to 80%, preferably 5 to 70%
Examples of the organic sludge in the present invention include sewage human waste, activated sludge treated or digested sludge treated sewage, and sludge produced from food wastewater.
本発明の脱水剤を用いて固液７分離、濾過脱水するに際
し、脱水剤の使用竜は有機性汚泥の固型分重量あたり通
常２〜８０％、好ましくは５〜７０％である。When performing solid-liquid separation and filtration dehydration using the dehydrating agent of the present invention, the amount of dehydrating agent used is usually 2 to 80%, preferably 5 to 70%, based on the solid weight of the organic sludge.
本発明の脱水剤を有機性汚泥に添加する（こ際し腐植質
はそのま５または５〜５０重量％程度の水スラリーとし
て添加される。有機系高分子凝集剤は通常０１〜１ 重
量％程度の水溶液として添加される。The dehydrating agent of the present invention is added to the organic sludge (at this time, the humus is added as is or as an aqueous slurry of about 5 to 50% by weight.The organic polymer flocculant is usually added to the organic sludge at about 0.1 to 1% by weight). It is added as an aqueous solution.
添加においては有機性汚泥に腐植質を添加し攪拌、次い
で濾過脱水を行うが濾過脱水を行う場合の脱水機として
は真空脱水機１ことえばオリバーフイルター、ベル！・
フィルター、１、うｌ、フィルター 。In addition, humus is added to organic sludge, stirred, and then filtered and dehydrated.The dehydrator used for filtration and dehydration is a vacuum dehydrator, such as an Oliver filter or a Bell!・
filter, 1, ul, filter.
グリコ−１〜フイルターなどかＪ’）げられる。これら
分子凝集剤」（大森英三名、昭和５０ｑ： １月、高分
子刊行会発行）の第１３１頁に記載されている。真空脱
水板以外に遠心脱水機９０−ルプレス型ベルト脱水機な
とも使用できる。Glyco-1~filter etc.J') can be obtained. These Molecular Flocculants" (Eizo Omori, January 1975, published by Kobunshi Kankai), page 131. In addition to vacuum dehydration plates, centrifugal dehydrators and 90-le-press type belt dehydrators can also be used.
泊過脱水により得られたケー・１は公知の方法で焼却な
とされる３゜
本発明の脱水剤には必留かΔリフ１．ば本発明Ｕ）効果
を阻害しない範囲でポリｊ７ｕｔ化アｉチ、 ｆ＋ｌｆ
ｌ□１ツバノ」−硫酸第一鉄、塩化第二鉄、消石灰４
■どのツ＋！（機系凝集剤を併用してもよい。その量は
有ｊ１２−（性７ｔｊ泥の固形分重量当り通常０１〜５
％、μｒ〕にしく １．ｉ、 Ｏ，ｉ ＝ ３％であ
る。The K-1 obtained by over-dehydration must be incinerated by a known method.Is the dehydrating agent of the present invention necessarily retained? According to the present invention U) polyj7ut is added within a range that does not impede the effect, f+lf
l□1 Tsubano” - ferrous sulfate, ferric chloride, slaked lime 4
■What Tsu+! (A mechanical flocculant may also be used in combination.The amount is usually 0.1 to 5.0% per solid weight of the mud.
%, μr] 1. i, O, i = 3%.
本発明の脱水剤は下記の効果を夕する。The dehydrating agent of the present invention has the following effects.
（］）脱水性が良好で７１’） り 、脱水後の流失Ｓ
、Ｓ（けん濁物質）か少ない。具体的にはｊ１鴇植質と
有機系高分子υＩ集剤を有機性ｌ’ｉ泥（こ加えた場合
ｐ６植為
質と有機系高分子凝集剤との反応はおそく、有機性汚泥
と有機系高分子凝集剤との反応と同じ位であるため有機
性汚泥の脱水性に影響しない。−万機粉炭と有機系高分
子凝集剤を使用する場合、微粉炭と有機系高分子凝集剤
の反応が有機性汚泥と付根系高分子凝集剤の反応よりも
早いため、汚泥の脱水に十分効果を発１１１ｆでき１１
まｆコ有機性汚泥の１・脱水性にバラツキかでき、また
涙液中にＳ、Ｓが流失しＸきれいなＰ液が得らｔｌ、な
い。そのためには再度処理する必要かある。(]) Good dehydration properties71')
, S (suspended substance) or less. Specifically, when J1 plant material and organic polymer υI flocculant are added to organic l'i mud, the reaction between p6 plant material and organic polymer flocculant is slow, and organic sludge and organic It does not affect the dewatering performance of organic sludge because the reaction is about the same as the reaction with the organic polymer flocculant. - When using pulverized coal and organic polymer flocculant, the Because the reaction is faster than the reaction between organic sludge and root-based polymer flocculant, it is highly effective in dewatering sludge.
1. The dehydration properties of organic sludge vary, and S and S are washed away into the lachrymal fluid, making it impossible to obtain a clean P fluid. To do so, it may be necessary to process it again.
低いケーキか得られる。質値質０）添加量をふやしてい
っても炉布とのハクｌＪｉは良好である。A low cake is obtained. Quality value Quality 0) Even if the amount added is increased, the peeling strength with the furnace cloth is good.
（３）脱離液のＰＨは無機系の凝集剤を使用しないため
、高くなく、中和を必要としない。(3) Since no inorganic flocculant is used, the pH of the desorbed solution is not high and does not require neutralization.
（４）腐４ｍｌ質自身自メ然性があるため、脱水された
ケーキの焼却の際燃料費の大巾な削減（こなる。(4) Since the 4ml cake itself is natural, fuel costs can be drastically reduced when incinerating the dehydrated cake.
（５）従米有機系高分子凝集剤のみを使用し真空脱水機
を使用して固欣分ＦｇｉＬができ（ごくかったが、偶植
質と有機系高分子ｇＥ集剤を組合せれＩＪ゛貞空脱水機
を使用して固液分前か可能となる。(5) A solid fraction FgiL was made using only a conventional organic polymer flocculant and a vacuum dehydrator (although it was very difficult to make, it was possible to make a solid fraction FgiL by combining an organic polymer flocculant with an organic polymer gE flocculant). It is possible to separate solids and liquids using an empty dehydrator.
以下、実施例により本発明をさらに説明するが本発明は
これに限定されるもので（」ない。The present invention will be further explained below with reference to Examples, but the present invention is not limited thereto.
実施例１
下記の草炭おＪ：び有機系高分子凝集剤を便用しこの脱
水剤を用いて、下記条件で有機性汚泥を脱水した。結果
を表−２に示す。Example 1 Organic sludge was dehydrated using the following dehydrating agent and organic polymer flocculant under the following conditions. The results are shown in Table-2.
（１）有機性汚泥濃度は２．５％
（２）各薬剤（草炭、有機系高分子凝集剤、その他の凝
集剤を指す）の添加量は対ＤＳ（汚泥固形分）θう
（３）有機性汚泥の性質
生し尿士浄化槽汚泥
（４）脱水時の条件
■真空圧：６００薄ＷＨｇＸ１０秒吸引 ２０秒脱水■
攪拌 ： ２００ｒｐｍ Ｘ １分
■濾過面積：４Ｔ、８ｃノｊ
■Ｐ布 ：サラン匝 ９０メツシュ
表−２(1) Organic sludge concentration is 2.5% (2) Addition amount of each chemical (grass charcoal, organic polymer flocculant, and other flocculants) is relative to DS (sludge solid content) (3) Properties of organic sludge Raw septic tank sludge (4) Conditions for dehydration ■ Vacuum pressure: 600 thin WHg x 10 seconds suction, 20 seconds dehydration ■
Stirring: 200 rpm x 1 minute ■Filtration area: 4T, 8c noj ■P cloth: Saran trowel 90 mesh Table-2
Claims (1)
機性汚泥の固液分離性能のすぐれた脱水剤。 ２、 腐碩質か草炭または／および草炭類似物質である
特許請求の範囲第１項化載の脱水剤。 ３、 有機性汚泥に腐植質を一添加し、次いで有機系高
分子凝集剤を添卯し、ｌ液分塵を行うことを特徴とする
脱水剤の使用法。[Scope of Claims] 1. A dehydrating agent with excellent solid-liquid separation performance for organic sludge, which is formed by combining a solid sludge and an organic polymer flocculant. 2. The dehydrating agent according to claim 1, which is saprophyte, grass charcoal, or/and a grass charcoal-like substance. 3. A method for using a dehydrating agent, which comprises adding humus to organic sludge, then adding an organic polymer flocculant, and performing liquid separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56167679A JPS5867399A (en) | 1981-10-19 | 1981-10-19 | Dehydrating agent and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56167679A JPS5867399A (en) | 1981-10-19 | 1981-10-19 | Dehydrating agent and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5867399A true JPS5867399A (en) | 1983-04-21 |
Family
ID=15854206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56167679A Pending JPS5867399A (en) | 1981-10-19 | 1981-10-19 | Dehydrating agent and using method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5867399A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552666A (en) * | 1982-11-26 | 1985-11-12 | Mueller Dietrich | Process for the treatment of sewage sludge |
| WO1995019328A1 (en) * | 1994-01-18 | 1995-07-20 | Allplant Entwicklungs- Und Marketing Gmbh | Cultivation substrate and process for producing it |
-
1981
- 1981-10-19 JP JP56167679A patent/JPS5867399A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552666A (en) * | 1982-11-26 | 1985-11-12 | Mueller Dietrich | Process for the treatment of sewage sludge |
| WO1995019328A1 (en) * | 1994-01-18 | 1995-07-20 | Allplant Entwicklungs- Und Marketing Gmbh | Cultivation substrate and process for producing it |
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