JPH03269087A - Gelatinization of sludge - Google Patents
Gelatinization of sludgeInfo
- Publication number
- JPH03269087A JPH03269087A JP6841790A JP6841790A JPH03269087A JP H03269087 A JPH03269087 A JP H03269087A JP 6841790 A JP6841790 A JP 6841790A JP 6841790 A JP6841790 A JP 6841790A JP H03269087 A JPH03269087 A JP H03269087A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- phosphate
- potassium
- sodium
- water
- 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
- 239000010802 sludge Substances 0.000 title claims abstract description 31
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 19
- 239000010452 phosphate Substances 0.000 claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims abstract description 12
- 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 claims abstract description 11
- 239000000661 sodium alginate Substances 0.000 claims abstract description 11
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 11
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 6
- 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 claims abstract description 5
- 239000001913 cellulose Substances 0.000 claims abstract description 5
- 229920002678 cellulose Polymers 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000000737 potassium alginate Substances 0.000 claims abstract description 5
- 235000010408 potassium alginate Nutrition 0.000 claims abstract description 5
- MZYRDLHIWXQJCQ-YZOKENDUSA-L potassium alginate Chemical compound [K+].[K+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O MZYRDLHIWXQJCQ-YZOKENDUSA-L 0.000 claims abstract description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract 5
- 239000011591 potassium Substances 0.000 claims abstract 5
- 229910052700 potassium Inorganic materials 0.000 claims abstract 5
- AEMRFAOFKBGASW-UHFFFAOYSA-M Glycolate Chemical compound OCC([O-])=O AEMRFAOFKBGASW-UHFFFAOYSA-M 0.000 claims abstract 3
- AZSFNUJOCKMOGB-UHFFFAOYSA-K cyclotriphosphate(3-) Chemical compound [O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 AZSFNUJOCKMOGB-UHFFFAOYSA-K 0.000 claims abstract 3
- 230000015271 coagulation Effects 0.000 claims description 15
- 238000005345 coagulation Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000005054 agglomeration Methods 0.000 claims description 5
- 230000002776 aggregation Effects 0.000 claims description 5
- 150000001447 alkali salts Chemical class 0.000 claims description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 4
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 4
- 239000000701 coagulant Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011734 sodium Substances 0.000 abstract description 3
- 229920003169 water-soluble polymer Polymers 0.000 abstract description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract description 2
- 230000018044 dehydration Effects 0.000 abstract description 2
- 238000006297 dehydration reaction Methods 0.000 abstract description 2
- 229920005614 potassium polyacrylate Polymers 0.000 abstract description 2
- 229910052708 sodium Inorganic materials 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 2
- 159000000011 group IA salts Chemical class 0.000 abstract 2
- 239000004135 Bone phosphate Substances 0.000 abstract 1
- 229920002125 Sokalan® Polymers 0.000 abstract 1
- 235000006085 Vigna mungo var mungo Nutrition 0.000 abstract 1
- 240000005616 Vigna mungo var. mungo Species 0.000 abstract 1
- 239000004584 polyacrylic acid Substances 0.000 abstract 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 235000021317 phosphate Nutrition 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 4
- 239000001488 sodium phosphate Substances 0.000 description 4
- 229910000162 sodium phosphate Inorganic materials 0.000 description 4
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910052925 anhydrite Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- AZSFNUJOCKMOGB-UHFFFAOYSA-N cyclotriphosphoric acid Chemical group OP1(=O)OP(O)(=O)OP(O)(=O)O1 AZSFNUJOCKMOGB-UHFFFAOYSA-N 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- FIJPWGLOBMXXSF-UHFFFAOYSA-M potassium;2-hydroxyacetate Chemical compound [K+].OCC([O-])=O FIJPWGLOBMXXSF-UHFFFAOYSA-M 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- ZZGRDDIINJOLCK-UHFFFAOYSA-N 5-chloro-2-ethyl-4-hydroxy-1h-pyrimidin-6-one Chemical compound CCC1=NC(O)=C(Cl)C(=O)N1 ZZGRDDIINJOLCK-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 229960001126 alginic acid Drugs 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 150000004781 alginic acids Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000011888 autopsy Methods 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- -1 secondary phosphates Chemical class 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は湖沼や河川、港湾等に存在するヘドロ処理法に
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for treating sludge existing in lakes, rivers, ports, etc.
（従来の技術）
一般にヘドロは脱水性が悪く、そのため運搬に多大のエ
ネルギーを必要とし、また処理のためには広い沈澱Ｙが
必要である。更にヘドロは表面のみ乾燥して内部に水が
残り、処分地が軟弱地盤になったり、腐敗による悪臭・
害虫の発生などその処理が困難である。(Prior Art) Generally, sludge has poor dehydration properties, and therefore requires a large amount of energy to transport, and a wide precipitate Y is required for treatment. Furthermore, only the surface of the sludge dries and water remains inside, which can cause the disposal site to become soft and cause foul odors and
It is difficult to deal with the occurrence of pests.
（発明が解決しようとする課題）
本発明は上記の欠点を改善するきわめて簡単なヘドロの
膠化処理法を提供することを目的とする。(Problems to be Solved by the Invention) An object of the present invention is to provide an extremely simple method for treating sludge by agglomeration, which improves the above-mentioned drawbacks.
（課題を解決するための手段）
上記の目的を達成するため、本発明は湖沼や河川、港湾
等に存在するヘドロに燐酸塩（第２燐酸塩、第３燐酸塩
又はトリ・メタ燐酸塩等）及びカルボキシル基を有する
水溶性高分子物質のアルカリ塩（アルギン酸ソーダ、ポ
リアクリル酸ソーダ。(Means for Solving the Problems) In order to achieve the above object, the present invention provides phosphates (such as secondary phosphates, tertiary phosphates, or tri-metaphosphates) to sludge existing in lakes, rivers, ports, etc. ) and alkali salts of water-soluble polymeric substances having carboxyl groups (sodium alginate, sodium polyacrylate.
繊維素グリコール酸ソーダ、アルギン酸カリ、ポリアク
リル酸カリ、繊維素グリコール酸カリ等）のうち一種ま
たは二種以上を配合せしめ、ついで難溶性の多価金属の
強酸塩の一種又は二種以上を反応せしめ膠化作用を行わ
しめると共に膠化後膣化物は離漿により水分を排除し減
量固形化することを特徴とするヘドロの膠化処理法を発
明の特徴とする。Cellulose sodium glycolate, potassium alginate, potassium polyacrylate, cellulose potassium glycolate, etc.) are blended, and then one or two or more types of strong acid salts of poorly soluble polyvalent metals are reacted. The present invention is characterized by a method for coagulation of sludge, which is characterized by performing a coagulation effect and removing moisture from the vaginalized material after coagulation by syneresis to reduce its weight and solidify it.
さらに本発明は湖沼や河川、港湾等に存在するヘドロに
燐酸塩（第２燐酸塩、第３燐酸塩又はトリ・メタ燐酸塩
等）及びカルボキシル基を有する水溶性高分子物質のア
ルカリ塩（アルギン酸ソーダ ポリアクリル酸ソーダ、
繊維素グリコール酸ソーダ、アルギン酸カリ、ポリアク
リル酸カリ繊維素グリコール酸カリ等）のうち一種また
は二種以上を配合せしめ、ついで難溶性の多価金属の強
酸塩の一種又は二種以上と少量のアルカリ元素の珪弗化
塩を添加反応せしめ膠化作用を行わしめると共に膠化後
膣化物は離漿により水分を排除し減量固形化することを
特徴とするヘドロ膠化処理法を発明の特徴とする。Furthermore, the present invention uses phosphates (secondary phosphate, tertiary phosphate, tri-metaphosphate, etc.) and alkali salts of water-soluble polymeric substances having carboxyl groups (alginic acid Soda polyacrylate soda,
Cellulose sodium glycolate, potassium alginate, potash polyacrylate, cellulose potassium glycolate, etc.) are blended together, and then one or two or more strong acid salts of poorly soluble polyvalent metals and a small amount of The feature of the invention is a sludge coagulation treatment method, which is characterized in that a silicofluoride salt of an alkali element is reacted to cause a coagulation effect, and after coagulation, the vaginalized product is reduced in weight and solidified by removing water through syneresis. do.
（作 用）
その原理は上君己の多価金属塩が微量ずつ解離される金
属イオンのヘドロ粒子への吸着現象を活用したことによ
るものと考えられる。例えば硫酸カルシウムを使用する
場合、次式のように解離が進行する。(Function) The principle is thought to be that the polyvalent metal salt of the upper layer utilizes the adsorption phenomenon of metal ions, which are dissociated little by little, onto the sludge particles. For example, when calcium sulfate is used, dissociation proceeds as shown in the following equation.
ＣａＳＯ４→Ｃａ”＋ＳＯａ
このようにして生じたＣａ”がヘドロ粒子に吸着されて
ヘドロを不安定化し、更に５０４−によってＰＨの降下
が起り、膠化が誘発さるが、膠化物の強さ及び固さはＣ
ａ”の吸着によって招来せられるものと考えられる。CaSO4→Ca"+SOa Ca" thus generated is adsorbed to the sludge particles and destabilizes the sludge, and 504- causes a drop in pH and induces agglomeration, but the strength and hardness of the agglomerate decreases. Saha C
This is thought to be caused by the adsorption of a''.
上記の反応を緩慢化し、均質な膠化反応を期するには、
次の反応を併用する。In order to slow down the above reaction and achieve a homogeneous agglomeration reaction,
Use the following reactions together.
２ Ｎａ５ＰＯａ ＋ ３ Ｃａ５Ｏａ ＝ Ｃａ３（
ＰＯａ）１ ＋３ ＮａｚＳＯａ（１）
２ＮａＡｊ！ ｇ ＋Ｃａ５ｌ）４ ＋ ＮａｚＳ
Ｏａ＋Ｃａｌ ｇ）ｚ・ ・ ・ ・（２）
ここにＮａＡ １ ｇはアルギン酸ソーダを示す。2 Na5POa + 3 Ca5Oa = Ca3(
POa) 1 +3 NazSOa(1) 2NaAj! g +Ca5l)4 + NazS
Oa+Cal g)z・・・・・(2) Here, 1 g of NaA represents sodium alginate.
この反応はＣａＳＯ４に限らず珪酸鉛または珪弗化鉛で
も進行する。This reaction proceeds not only with CaSO4 but also with lead silicate or lead silicofluoride.
なお、アルカリの珪弗化塩を併用する場合には次式の化
学反応が進行し、ＰＨの降下は急激に起きる。In addition, when an alkali silifluoride salt is used in combination, the chemical reaction of the following formula proceeds, and the pH rapidly decreases.
Ｎａ、５ｉＦａ ＋ ４ＨｚＯ「＝コ２ＮａＦ ＋５
ｉ（ＯＨ） ｓ ＋４）ＩＦヘドロ膠化に際してＮａ５
（ＰＯｎ）が減少すれば、その分散媒のＰＨは降下する
。アルギン酸ソーダ（ＮａＡ ｌ ｇ）は、その分子量
が相当大きく、その水溶液は凝固前にすでに分子コロイ
ドとして存在し、ヘドロ粒子を包括しているので、ＰＨ
の降下があれば、コロイドの安定性に変化があると共に
、アルギン酸アルカリ塩は加水分解して、アルギンｔＩ
ｉ４こ戻るため、溶解度が低下し、ヘドロ粒子と共に、
ゾル状より、ゲル状となり更に膠化物は離漿して減量固
形化する。Na, 5iFa + 4HzO"=ko2NaF +5
i(OH) s +4) Na5 during IF sludge agglomeration
If (POn) decreases, the PH of the dispersion medium decreases. Sodium alginate (NaAlg) has a considerably large molecular weight, and its aqueous solution already exists as a molecular colloid before solidification and contains sludge particles, so the PH
If there is a drop in
As i4 returns, the solubility decreases, and together with the sludge particles,
It becomes gel-like instead of sol-like, and the gelatinized material synergates to reduce its weight and solidify.
上記の反応においてＮａ５（ＰＯ４）及びＮａＡ４２ｇ
は多価の金属イオンのヘドロ粒子への吸着を緩和する機
能を果たすため、そのヘドロ粒子に対する比率により、
膠化時間を適宜に調節することができる。In the above reaction Na5(PO4) and NaA42g
functions to alleviate the adsorption of polyvalent metal ions to the sludge particles, so depending on its ratio to the sludge particles,
The coagulation time can be adjusted as appropriate.
（実施例）
次に本発明の実施例について説明する。次の夫々の実施
例においてはＡ剤及びＢ荊なる表現を用いているが、は
じめにＡ剤について各実施例に示す配合割合で混合して
、Ａ剤を作成し、ついでＢ剤（下に示す夫々の配合割合
で混合したもの）を約１分間均一に混和すれば、３〜５
分間で膠化し、膠ＩＷ痛を長くすることは膠化剤（Ｂ剤
）と基剖（Ａ割）との比率を下げることにより達成する
ことができる。(Example) Next, an example of the present invention will be described. In each of the following Examples, the expressions A and B are used. First, A and B were mixed at the proportions shown in each example to create A and then B (as shown below). 3 to 5 if mixed uniformly for about 1 minute.
It is possible to achieve gelatinization in minutes and to prolong the glue IW pain by lowering the ratio of the coagulant (B agent) to the basic tissue (A ratio).
次に夫々の実施例においては配合割合のみを示す。Next, in each example, only the blending ratio is shown.
ここに配合割合は重量％によるものである。The blending ratio here is based on weight %.
（実施例１）
Ａ剤の組成
ヘドロ（濃４０％） １００
アルギン酸ソーダ ０．５トリ・メタ
燐酸 ０．５Ｂ剤の組成
Ｃａ５Ｏ，３Ｈ２Ｏ（半水石膏）５０
（実施例２）
Ａ剖の組成
ヘドロ（濃度的５０％） １００ポリアクリル酸
ソーダ １
第２燐酸ソーダ ３
Ｂ剤の組成
硫酸カルシウム ５
硫酸鉛 ５
（実施例３）
Ａ剤の組成
ヘドロ（１１度約５０％） ２００第３燐酸ソーダ
６
アルギン酸ソーダ ０．５Ｂ剤の組成
硫酸カルシウム ２０
（実施例４）
Ａ荊の組成
ヘドロ（ｉｌｌＩ度約４０％） １００第２燐酸
ソーダ ３
アルギン酸ソーダ ０．５Ｂ荊の組成
硫酸カルシウム ２０
実施例３．４の使用法はＡ剤とＢ剤との攪拌緩和により
３０分〜６０分後に膠化する。従って従来のヘドロの水
分の自然蒸発により膠化する方式に較べて膠化時間が著
しく短縮せられ、作業能率の向上が期待されるばかりで
なく、膠化した膠化物は膠化後は離漿により水分を排除
し、減量するため、その取扱が容品となる。(Example 1) Composition of agent A sludge (concentrated 40%) 100 Sodium alginate 0.5 Tri-metaphosphoric acid 0.5 Composition of agent B Ca5O, 3H2O (gypsum hemihydrate) 50 (Example 2) Composition of autopsy sludge A (Concentration 50%) 100 Sodium polyacrylate 1 Sodium phosphate 3 Composition of B agent Calcium sulfate 5 Lead sulfate 5 (Example 3) Composition of agent A Sludge (11 degrees approx. 50%) 200 Sodium tertiary phosphate 6 Sodium alginate Composition of 0.5B agent Calcium sulfate 20 (Example 4) Composition of A thorn Sludge (illI degree about 40%) 100 Sodium phosphate 3 Sodium alginate 0.5B Composition of thorn Calcium sulfate 20 Example 3.4 The usage method is as follows: By relaxing the stirring of Part A and Part B, the mixture becomes agglomerated after 30 to 60 minutes. Therefore, compared to the conventional method of coagulating sludge through natural evaporation of moisture, the coagulation time is significantly shortened, and not only is it expected to improve work efficiency, but the coagulated material is synergized after coagulation. This process removes moisture and reduces the weight of the product, so it is handled as a container.
Ａ剤中の遅延剤（燐酸ソーダ及びアルギン酸ソーダ）の
配合量の増減により膠化時間を延長または短縮すること
ができる。The coagulation time can be extended or shortened by increasing or decreasing the amount of the retardant (sodium phosphate and sodium alginate) in Part A.
（実施例５）
Ａ剤の組成
ヘドロ（ｆＡ度約４０％） １００第２燐酸ソー
ダ ３
アルギン酸ソーダ ０．５Ｂ剤の組成
硫酸カルシウム ２０
珪弗化ソーダ ０．５但し測定条件
は２２°Ｃ１湿度５５％、混和時間１分、Ａ剤の重量２
０ｇとする。(Example 5) Composition of agent A Sludge (fA degree approximately 40%) 100 Sodium phosphate 3 Sodium alginate 0.5 Composition of agent B Calcium sulfate 20 Sodium silicate fluoride 0.5 However, the measurement conditions were 22°C, humidity 55 %, mixing time 1 minute, weight of A agent 2
It is set to 0g.
（発明の効果）
叙上のように本発明はヘドロに燐酸塩及びカルボキシル
基を有する水溶性高分子物質のアルカリ塩を混合したへ
剤にｌ１１１溶性多価金属の強酸塩よりなるＢ剤を反応
せしめるか、又は前記Ａ剖にＢ剤及び少量のアルカリ元
素の珪弗化塩を添加反応せしめることによって、速やか
にヘドロを膠化せしめると共に膠化したヘドロ膠化物は
膠化後は離漿により水分を排除し減量固形化するため、
その取扱が更に容５となるものである。(Effects of the Invention) As described above, the present invention involves reacting agent B consisting of a strong acid salt of a 1111-soluble polyvalent metal with a hemolyte prepared by mixing sludge with a phosphate and an alkali salt of a water-soluble polymer substance having a carboxyl group. By adding agent B and a small amount of silicofluoride salt of an alkali element to the above-mentioned A dissection, the sludge is quickly coagulated, and the coagulated sludge agglomerate is released from water by syneresis after coagulation. In order to reduce and solidify by eliminating
The handling is even more complicated.
手続補正書 平成２年１１月えＳ日Procedural amendment November 1990 S day
Claims (2)
第２燐酸塩、第３燐酸塩又はトリ・メタ燐酸塩等）及び
カルボキシル基を有する水溶性高分子物質のアルカリ塩
（アルギン酸ソーダ、ポリアクリル酸ソーダ、繊維素グ
リコール酸ソーダ、アルギン酸カリ、ポリアクリル酸カ
リ、繊維素グリコール酸カリ等）のうち一種または二種
以上を配合せしめ、ついで難溶性の多価金属の強酸塩の
一種又は二種以上を反応せしめ膠化作用を行わしめると
共に膠化後膠化物は離漿により水分を排除し減量固形化
することを特徴とするヘドロの膠化処理法。(1) Phosphate (
dibasic phosphate, tertiary phosphate, tri-metaphosphate, etc.) and alkali salts of water-soluble polymeric substances having carboxyl groups (sodium alginate, sodium polyacrylate, sodium cellulose glycolate, potassium alginate, polyacrylic Potassium acid, potassium cellulose glycolate, etc.) are blended together, and then one or more strong acid salts of poorly soluble polyvalent metals are reacted to effect coagulation and after coagulation. A method for coagulation of sludge, which is characterized by removing moisture through syneresis to reduce the amount of coagulation and solidify it.
第２燐酸塩、第３燐酸塩又はトリ・メタ燐酸塩等）及び
カルボキシル基を有する水溶性高分子物質のアルカリ塩
（アルギン酸ソーダ、ポリアクリル酸ソーダ、繊維素グ
リコール酸ソーダ、アルギン酸カリ、ポリアクリル酸カ
リ、繊維素グリコール酸カリ等）のうち一種または二種
以上を配合せしめ、ついで難溶性の多価金属の強酸塩の
一種又は二種以上と少量のアルカリ元素の珪弗化塩を添
加反応せしめ膠化作用を行わしめると共に膠化後膠化物
は離漿により水分を排除し減量固形化することを特徴と
するヘドロ膠化処理法。(2) Phosphate (
dibasic phosphate, tertiary phosphate, tri-metaphosphate, etc.) and alkali salts of water-soluble polymeric substances having carboxyl groups (sodium alginate, sodium polyacrylate, sodium cellulose glycolate, potassium alginate, polyacrylic Potassium acid, potassium cellulose glycolate, etc.) are blended, and then one or more strong acid salts of poorly soluble polyvalent metals and a small amount of silifluoride salt of an alkali element are added for reaction. A sludge agglomeration treatment method characterized by performing a coagulant action and removing moisture from the agglomerated material by syneresis to reduce its weight and solidify it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6841790A JPH03269087A (en) | 1990-03-20 | 1990-03-20 | Gelatinization of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6841790A JPH03269087A (en) | 1990-03-20 | 1990-03-20 | Gelatinization of sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03269087A true JPH03269087A (en) | 1991-11-29 |
Family
ID=13373089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6841790A Pending JPH03269087A (en) | 1990-03-20 | 1990-03-20 | Gelatinization of sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03269087A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10147781A (en) * | 1996-11-20 | 1998-06-02 | Matsuoka Kosan Kk | Method for drying and solidifying soil, solidified soil and drying and solidifying material for soil |
-
1990
- 1990-03-20 JP JP6841790A patent/JPH03269087A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10147781A (en) * | 1996-11-20 | 1998-06-02 | Matsuoka Kosan Kk | Method for drying and solidifying soil, solidified soil and drying and solidifying material for soil |
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