JPH0563202B2 - - Google Patents
Info
- Publication number
- JPH0563202B2 JPH0563202B2 JP61288341A JP28834186A JPH0563202B2 JP H0563202 B2 JPH0563202 B2 JP H0563202B2 JP 61288341 A JP61288341 A JP 61288341A JP 28834186 A JP28834186 A JP 28834186A JP H0563202 B2 JPH0563202 B2 JP H0563202B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- aluminum chloride
- present
- magnesium ions
- 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.)
- Expired - Lifetime
Links
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 18
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 10
- 239000011574 phosphorus Substances 0.000 description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 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 5
- 239000003651 drinking water Substances 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 4
- 239000010800 human waste Substances 0.000 description 4
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 4
- 239000001095 magnesium carbonate Substances 0.000 description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 239000010840 domestic wastewater Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 229910019440 Mg(OH) Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- QLULGSLAHXLKSR-UHFFFAOYSA-N azane;phosphane Chemical compound N.P QLULGSLAHXLKSR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003017 phosphorus Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Description
産業上の利用分野
本発明は飲料水、廃水等に有用な水処理剤に関
する。
従来技術および問題点
水処理剤として硫酸アルミニウム、塩基性硫酸
アルミニウム、塩化アルミニウムあるいは塩基性
塩化アルミニウム等のアルミニウム系凝集剤を含
むものがよく知られている。
社会資本充実の一分野として下水道、屎尿処理
の施設は益々拡充されねばならないが、この分野
では、今後、活性汚泥処理が採用されることは必
至である。従つて、活性汚泥処理後の水の処理に
際しては、活性汚泥菌を死滅させないことが大き
な要素であり、このためには、塩基性アルミニウ
ム塩が好ましいことは公知の事実である。
一方で、活性汚泥菌の増殖には、硫安、燐安等
が使用され、かつ、生活廃水、屎尿中からも多量
の燐、アンモニア、蛋白、アミノ酸が混入してお
り、活性汚泥処理後も可溶性燐分は残存してい
る。
しかし、この燐分は従来のアルミニウム系凝集
剤では除去し難いことも広く知られている。
また、従来の硫酸アルミニウム系、塩基性硫酸
アルミニウム系、塩化アルミニウム系、塩基性塩
化アルミニウム系凝集剤はアンモニア、蛋白質、
アミノ質を多く含む排水の除濁性に劣り、化学的
酸素要求量（COD）を下げ難い。
すなわち本発明の目的は、従来のアルミニウム
系凝集剤を含有する水処理剤の特性を損なうこと
なく、かつ除濁性、燐分の除去性およびCOD除
去性に優れた水処理剤を提供することを目的とす
る。
問題点を解決するための手段
本発明は塩基度が10〜45％で、酸化アルミニウ
ムに対するマグネシウムイオンの含量が７〜30％
であるマグネシウムイオン含有塩基性塩化アルミ
ニウムを含有する水処理剤に関する。
本発明のマグネシウムイオンを含む塩基性塩化
アルミニウム塩含有水処理剤は、上水道用原水
（表流水、伏流水、地下水）の処理に際しては、
マグネシウムイオンを含まない硫酸アルミニウ
ム、塩基性塩化アルミニウムと比較し、除濁性に
おいてさほどの差異はないが、除濁後の処理水中
に必要量のマグネシウムイオンを残存せしむる機
能があることがわかつた。本発明の水処理剤で飲
料水を処理することにより、都会人に欠落しがち
なマグネシウムイオンを飲料水に供給することが
でき、いわゆる「うまい水」を簡便に得られる意
義は大きい。
本発明の別の特徴は、アンモニア、蛋白質、ア
ミノ酸を含む廃水に対しても優れた除濁性と
CODの除去性を示すことである。
本発明による水処理剤は、今後発展するであろ
うバイオケミカル分野の廃水処理剤として存在意
義は大きい。
本発明のさらなる特徴は可溶性燐分の除去にも
優れていることである。
本発明に用いる塩基性塩化アルミニウムは、塩
基度10％〜60％までは加水分解速度は実用上差支
えない状態であるが、安定性の点で10％〜45％が
好ましく、Ａ2O3に対するマグネシウムイオン
の量は７％〜30％が実用上好ましい。
本発明の水処理剤に用いられるマグネシウムイ
オンを含む塩基性塩化アルミニウムは、塩化アル
ミニウム水溶液と水酸化マグネシウムを反応す
る；塩化アルミニウム水溶液と炭酸マグネシウム
を反応する；または塩化アルミニウム水溶液と塩
基性炭酸マグネシウムを反応することにより得ら
れる。
塩基性塩化アルミニウム中のマグネシウムイオ
ンは、Mg（OH）2、MgOHC、MgC、また炭
酸マグネシウム、塩基性炭酸マグネシウムの形で
混在しているものと考えられる。
本発明の水処理剤は飲料水、工業廃水、生活廃
水、屎尿等、あらゆる水に適用可能である。
処理方法としては通常行なわれている沈澱処
理、加圧浮上処理方法等に適用可能である。
本発明をさらに実施例を用いて説明する。
実施例 １
処理水中にマグネシウムイオンが残留する例
純水を用い、標準濁度10°の原水を調整する。
水温25℃、マグネシウムイオン0p比較のためJIS
K1475のポリ塩化アルミニウムを使用、マグネシ
ウムイオンを含む本発明の水処理剤は、浅田化学
工業(株)商品名LBA−40Cを使用した。
LBA−40C；浅田化学工業(株)商品名 塩基性塩
化アルミニウム
Ａ2O3分8.09％、塩基度39.2％、Mg分2.25％
JIS ポリ塩化アルミニウムＡ2O3分10.03％、
塩基度52.3％、Mg分検出不能
ジヤーテスト条件
原水500mlを500mlビーカーに採り、水処理剤を
マイクロシリンジを用い添加、次いで、処理水の
PHが7.0〜7.5になるよう予め希釈した苛性ソーダ
水溶液を加え、１分間120回転で２分間かきまぜ
た後、１分間50回転で８分かきまぜる。10分静置
後、上澄水を採取、上澄水の濁度およびマグネシ
ウムイオンを測定した。
結果を以下に示す。
INDUSTRIAL APPLICATION FIELD The present invention relates to a water treatment agent useful for drinking water, wastewater, etc. Prior Art and Problems Water treatment agents containing aluminum flocculants such as aluminum sulfate, basic aluminum sulfate, aluminum chloride, or basic aluminum chloride are well known. Sewage and human waste treatment facilities must be further expanded as part of the field of social capital enhancement, and it is inevitable that activated sludge treatment will be adopted in this field in the future. Therefore, when treating water after activated sludge treatment, it is a major factor not to kill activated sludge bacteria, and it is a well-known fact that basic aluminum salts are preferred for this purpose. On the other hand, ammonium sulfate, ammonium phosphorus, etc. are used for the growth of activated sludge bacteria, and large amounts of phosphorus, ammonia, protein, and amino acids are also mixed in from domestic wastewater and human waste, and even after activated sludge treatment, they remain soluble. Phosphorus remains. However, it is widely known that this phosphorus content is difficult to remove using conventional aluminum-based flocculants. In addition, conventional aluminum sulfate-based, basic aluminum sulfate-based, aluminum chloride-based, and basic aluminum chloride-based flocculants contain ammonia, protein,
It has poor turbidity removal properties for wastewater containing a lot of amino substances, and it is difficult to lower the chemical oxygen demand (COD). That is, the purpose of the present invention is to provide a water treatment agent that has excellent turbidity removal properties, phosphorus removal properties, and COD removal properties without impairing the characteristics of conventional water treatment agents containing aluminum-based flocculants. With the goal. Means for Solving the Problems The present invention has a basicity of 10-45% and a content of magnesium ions relative to aluminum oxide of 7-30%.
The present invention relates to a water treatment agent containing basic aluminum chloride containing magnesium ions. The basic aluminum chloride salt-containing water treatment agent containing magnesium ions of the present invention can be used to treat raw water for waterworks (surface water, underground water, groundwater).
Compared to aluminum sulfate and basic aluminum chloride, which do not contain magnesium ions, there is not much difference in turbidity removal properties, but it has been found that it has the ability to retain the necessary amount of magnesium ions in the treated water after turbidity removal. Ta. By treating drinking water with the water treatment agent of the present invention, it is possible to supply drinking water with magnesium ions, which urbanites tend to lack, and it is of great significance that so-called "delicious water" can be easily obtained. Another feature of the present invention is that it has excellent turbidity even for wastewater containing ammonia, protein, and amino acids.
The objective is to demonstrate the ability to remove COD. The water treatment agent according to the present invention has great significance as a wastewater treatment agent in the biochemical field, which is expected to develop in the future. A further feature of the present invention is that it is also excellent in removing soluble phosphorus. The basic aluminum chloride used in the present invention has a hydrolysis rate of no practical problem when the basicity is 10% to 60%, but from the viewpoint of stability, it is preferably 10% to 45%, and the basicity is 10% to 60 % . The amount of magnesium ions is practically preferably 7% to 30%. Basic aluminum chloride containing magnesium ions used in the water treatment agent of the present invention can be prepared by reacting an aqueous aluminum chloride solution with magnesium hydroxide; reacting an aqueous aluminum chloride solution with magnesium carbonate; or reacting an aqueous aluminum chloride solution with basic magnesium carbonate. Obtained by reaction. Magnesium ions in basic aluminum chloride are thought to be mixed in the form of Mg(OH) 2 , MgOHC, MgC, magnesium carbonate, and basic magnesium carbonate. The water treatment agent of the present invention can be applied to all kinds of water, such as drinking water, industrial wastewater, domestic wastewater, and human waste. As a treatment method, commonly used sedimentation treatment, pressurized flotation treatment, etc. can be applied. The present invention will be further explained using examples. Example 1 An example where magnesium ions remain in treated water Using pure water, raw water with a standard turbidity of 10° is prepared.
Water temperature 25℃, magnesium ion 0p JIS for comparison
The water treatment agent of the present invention using polyaluminum chloride of K1475 and containing magnesium ions was manufactured by Asada Chemical Industry Co., Ltd. under the trade name LBA-40C. LBA-40C; Asada Chemical Industry Co., Ltd. Product name Basic aluminum chloride A 2 O 3 min 8.09%, basicity 39.2%, Mg content 2.25% JIS polyaluminum chloride A 2 O 3 min 10.03%,
Basicity 52.3%, Mg content undetectable Jar test conditions Take 500ml of raw water in a 500ml beaker, add water treatment agent using a microsyringe, then add treated water
Add a caustic soda aqueous solution previously diluted to a pH of 7.0 to 7.5, stir at 120 rpm for 2 minutes, and then stir at 50 rpm for 8 minutes. After standing for 10 minutes, supernatant water was collected, and the turbidity and magnesium ions of the supernatant water were measured. The results are shown below.
【表】【table】
【表】
明らかに処理水中にマグネシウムイオンを残留
せしむることできた。
ちなみに、六甲山自然水中のマグネシウムイオ
ンは2ppm含有されている。
実施例 ２
活性汚泥処理の屎尿処理水中の可溶性燐分の除
去
原水；PH7.09、濁度17゜、色度84°、燐分6.2ppm
凝集剤；JISポリ塩化アルミニウム
Ａ2O310.03％、塩基度52.3％
LAC；浅田化学工業(株)商品名
液体塩化アルミニウム
Ａ2O3 9.65％、塩基度 ０
LBA−４−Ｃ；浅田化学工業(株)商品名
液体塩基性塩化アルミニウム
Ａ2O3 8.09％、塩基度39.2％、Mg分2.25
％
ジヤーテスト条件
原水500mlを500mlビーカーに採り、ポリ塩化ア
ルミニウム、塩化アルミニウム、塩基性塩化アル
ミニウムを含む水処理剤をそれぞれ添加後、１分
間100回転で30秒間かきまぜる。規定量の高分子
凝集剤を添加後１分間70回転で30秒かきまぜ、10
分間静置後、上澄液を採取。上澄液のPH、濁度、
色度、燐分を測定した。結果を以下に示す。[Table] It was clearly possible to leave magnesium ions in the treated water. By the way, Mt. Rokko natural water contains 2 ppm of magnesium ions. Example 2 Removal of soluble phosphorus in human waste water during activated sludge treatment Raw water: PH7.09, turbidity 17°, chromaticity 84°, phosphorus content 6.2ppm Coagulant: JIS polyaluminum chloride A 2 O 3 10.03%, Basicity 52.3% LAC; Asada Chemical Industry Co., Ltd. Product name Liquid basic aluminum chloride A 2 O 3 9.65%, Basicity 0 LBA-4-C; Asada Chemical Industry Co., Ltd. Product name Liquid basic aluminum chloride A 2 O 3 8.09%, basicity 39.2%, Mg content 2.25
% Jar test conditions Take 500ml of raw water in a 500ml beaker, add water treatment agents containing polyaluminum chloride, aluminum chloride, and basic aluminum chloride, and stir at 100 rpm for 30 seconds. After adding the specified amount of polymer flocculant, stir for 30 seconds at 70 rpm for 1 minute.
After standing for a minute, collect the supernatant. Supernatant pH, turbidity,
The chromaticity and phosphorus content were measured. The results are shown below.
【表】
明らかに燐の除去性に優れている、また色度の
除去性が良いのも利点である。
LACは液体苛性ソーダを用いてPHを調節した。
発明の効果
本発明の水処理剤は、安定性、除濁性、燐分の
除去性およびCOD除去性に優れている。
本発明の水処理剤は、飲料水等にマグネシウム
イオンを供給することができる。[Table] Clearly, it has excellent phosphorus removal properties and also has the advantage of good chromaticity removal properties. The pH of the LAC was adjusted using liquid caustic soda. Effects of the Invention The water treatment agent of the present invention has excellent stability, turbidity removal properties, phosphorus removal properties, and COD removal properties. The water treatment agent of the present invention can supply magnesium ions to drinking water and the like.
Claims (1)
するマグネシウムイオンの含量が７〜30％である
マグネシウムイオン含有塩基性塩化アルミニウム
を含有する水処理剤。1. A water treatment agent containing magnesium ion-containing basic aluminum chloride having a basicity of 10 to 45% and a magnesium ion content of 7 to 30% relative to aluminum oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28834186A JPS63141613A (en) | 1986-12-03 | 1986-12-03 | Treatment of water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28834186A JPS63141613A (en) | 1986-12-03 | 1986-12-03 | Treatment of water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63141613A JPS63141613A (en) | 1988-06-14 |
| JPH0563202B2 true JPH0563202B2 (en) | 1993-09-10 |
Family
ID=17728943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28834186A Granted JPS63141613A (en) | 1986-12-03 | 1986-12-03 | Treatment of water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63141613A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4631420B2 (en) * | 2004-12-09 | 2011-02-16 | 栗田工業株式会社 | Fluorine-containing water treatment method |
| JP4752351B2 (en) * | 2005-06-23 | 2011-08-17 | 栗田工業株式会社 | Method and apparatus for treating fluorine-containing water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS495885A (en) * | 1972-04-04 | 1974-01-19 | ||
| JPS56108A (en) * | 1979-06-18 | 1981-01-06 | Daimaru Purorongu Kk | Manufacturing apparatus for concrete products |
| JPS5642322A (en) * | 1979-09-13 | 1981-04-20 | Toshiba Corp | Main and subsidiary type potential transformer |
| JPS5924727A (en) * | 1982-08-02 | 1984-02-08 | Asahi Chem Ind Co Ltd | Yarn, film, or molding having active surface and their production |
-
1986
- 1986-12-03 JP JP28834186A patent/JPS63141613A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS495885A (en) * | 1972-04-04 | 1974-01-19 | ||
| JPS56108A (en) * | 1979-06-18 | 1981-01-06 | Daimaru Purorongu Kk | Manufacturing apparatus for concrete products |
| JPS5642322A (en) * | 1979-09-13 | 1981-04-20 | Toshiba Corp | Main and subsidiary type potential transformer |
| JPS5924727A (en) * | 1982-08-02 | 1984-02-08 | Asahi Chem Ind Co Ltd | Yarn, film, or molding having active surface and their production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63141613A (en) | 1988-06-14 |
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