JPH078968A - Method of purifying water by rapid flocculation and sedimentation - Google Patents
Method of purifying water by rapid flocculation and sedimentationInfo
- Publication number
- JPH078968A JPH078968A JP4006941A JP694192A JPH078968A JP H078968 A JPH078968 A JP H078968A JP 4006941 A JP4006941 A JP 4006941A JP 694192 A JP694192 A JP 694192A JP H078968 A JPH078968 A JP H078968A
- Authority
- JP
- Japan
- Prior art keywords
- water
- ferrite powder
- soft magnetic
- particles
- powder
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims description 16
- 238000004062 sedimentation Methods 0.000 title claims description 8
- 238000005189 flocculation Methods 0.000 title description 2
- 230000016615 flocculation Effects 0.000 title description 2
- 239000000843 powder Substances 0.000 claims abstract description 31
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 230000003311 flocculating effect Effects 0.000 claims abstract 2
- 239000000696 magnetic material Substances 0.000 claims description 23
- 238000000746 purification Methods 0.000 claims description 6
- 230000002776 aggregation Effects 0.000 claims description 3
- 238000004220 aggregation Methods 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 229920001059 synthetic polymer Polymers 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 20
- 239000007787 solid Substances 0.000 abstract description 10
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract description 2
- 229940037003 alum Drugs 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 abstract description 2
- 239000008399 tap water Substances 0.000 abstract description 2
- 235000020679 tap water Nutrition 0.000 abstract description 2
- 238000013019 agitation Methods 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000006228 supernatant Substances 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 239000004927 clay Substances 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004931 aggregating effect Effects 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- -1 aluminum ions Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、通常の凝集剤と比重が
極く大きい沈降助剤を使用して各種の水資源中の固形浮
遊物微粒子を極く速い速度で凝集と共に沈降させること
により通常広い面積を有する沈降槽を不要とする新規の
浄水方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a coagulant and a settling aid having a very large specific gravity to precipitate solid suspended particles in various water resources together with coagulation at an extremely high speed. The present invention relates to a novel water purification method that does not require a settling tank having a large area.
【０００２】[0002]
【従来の技術】地表水を利用した上水原、各種の廃水及
び工業用水等に例外なく存在する微細浮遊物即ち各種の
無機質及び有機質固形物と微生物等は、従来明礬、第２
塩化鉄(FeCl3 ) 又はポリアルミニウムクロリド (Polya
luminum chloride: PAC) のような +３価金属塩又は合
成高分子物質である凝集剤等を使用して浮遊物微粒子等
の表面電荷状態を中和させることにより相互間に凝集が
生じるようにし、凝集した浮遊物の比重と水との比重差
により沈降する方法で除去している。2. Description of the Related Art Fine suspended solids, that is, various inorganic and organic solids and microorganisms, which exist without exception in surface water-using water sources, various wastewaters, industrial waters, etc.
Iron chloride (FeCl 3 ) or polyaluminum chloride (Polya
+ trivalent metal salt (such as aluminum chloride: PAC) or a coagulant that is a synthetic polymer substance to neutralize the surface charge state of fine particles of suspended solids so that cohesion occurs between them. It is removed by a method of settling due to the difference in specific gravity between the aggregated suspended matter and water.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の方法において、凝集した固形物の見かけの比
重が充分には大くないため、これらの沈降速度は極く緩
慢で通常沈降槽で２−４時間の滞留時間を必要とした。
従って、膨大な面積の沈降槽が必要であるという問題点
があった。 (参考文献 (1) R.S.Ramalho,“Introduction to Wastewater Treat
ment Processes”Academic Press(1983)。 (2) Robert L. Sanks,“Water Treatment Plant Desig
n”Ann Arbor Science(1979) 参照) 本発明は、各種の浮遊物等の表面電荷特性とスピンネル
(spinnel)構造を有し、比重の大きい軟磁性材粉末の表
面電荷特性を綿密に検討し、凝集剤、特に +３価金属塩
の水中においての作用を研究して速い速度で重い凝集粒
子を形成すると共に直ちに沈降する高比重性凝集迅速沈
降法を提供することを目的とする。However, in such a conventional method, since the apparent specific gravity of the agglomerated solids is not sufficiently large, the settling speed of these is extremely slow, and in the ordinary settling tank, A residence time of -4 hours was required.
Therefore, there is a problem that a settling tank having a huge area is required. (Reference (1) RSRamalho, “Introduction to Wastewater Treat
ment Processes ”Academic Press (1983). (2) Robert L. Sanks,“ Water Treatment Plant Desig
n "Ann Arbor Science (1979)) The present invention is directed to surface charge characteristics and spinner of various floating substances.
The surface charge characteristics of the soft magnetic material powder having a (spinnel) structure and a large specific gravity are carefully investigated, and the action of the aggregating agent, especially +3 valent metal salt in water is studied to remove the heavy agglomerated particles at a high speed. It is an object of the present invention to provide a high-specific-gravity flocculation rapid sedimentation method which forms and immediately sediments.
【０００４】地表水中の浮遊物は主として粘土質微粉で
あり、表面電荷が負に帯電されており、これにより粒子
相互間で反発が生じ、凝集しないで水中に安定に浮遊
し、その他の有機質物質等は大部分がこの粘土質粒子に
吸着されることが知られている。このように負に帯電さ
れている粘土質粒子とこれに吸着されている有機質物質
とが相互凝集するためには、表面電荷を中和させること
により粒子相互間の静電反発力を除去せねばならず、こ
の目的で +３価の鉄イオン又はアルミニウムイオンを含
有する化合物を使用することが知られている。即ち、凝
集剤を使用するのである。これらの凝集剤の作用機構に
関しては水処理技術に関する一般の文献に開示されてい
る。 (参考文献(1) R.S.Ramalho,“Introduction to Wa
stewater Treatment Processes", Academic Press(198
3), (2) Robert L. Sanks,“Water Treatment Plant De
sign”Ann Arbor Science(1979) 参照) 。The suspended matter in the surface water is mainly fine clay powder, and the surface charge is negatively charged, which causes repulsion between the particles and causes stable floating in water without aggregation, and other organic substances. It is known that most of them are adsorbed on the clay particles. In order for the negatively charged clay particles and the organic substance adsorbed to the negative particles to coagulate with each other, the electrostatic repulsion between the particles must be removed by neutralizing the surface charge. Of course, it is known to use compounds containing +3 iron or aluminum ions for this purpose. That is, a flocculant is used. The mechanism of action of these flocculants is disclosed in the general literature on water treatment technology. (Reference (1) RS Ramalho, “Introduction to Wa
stewater Treatment Processes ", Academic Press (198
3), (2) Robert L. Sanks, “Water Treatment Plant De
sign ”Ann Arbor Science (1979)).
【０００５】これらの凝集剤の作用で形成した浮遊物の
凝集粒子等は金属水酸化物と共に絡まり沈降するが、そ
の密度が大きくないため、沈降速度が緩慢で実用的な水
処理施設においては２−４時間の沈降のための滞留時間
が必要であり、これにより莫大な面積の沈降槽を必要と
し、又洪水期のような急激な濁度変化に適応能力が不足
だとの問題点もある。Agglomerated particles of suspended solids formed by the action of these aggregating agents are entangled and settled together with the metal hydroxide, but since the density is not large, the settling rate is slow and it is 2 in a practical water treatment facility. -4 hours of settling time is required for settling, which requires a huge settling tank and lacks adaptability to abrupt turbidity changes such as flood season. .
【０００６】[0006]
【課題を解決するための手段】本発明においては、各種
の軟磁性材 (ferrite)、特にスピンネル (spinnel)構造
を有する金属複合酸化物粉末は比重が約4.９前後の高い
価であり、表面電荷特性が水中浮遊微粒子等の表面電荷
と同一な負電荷であるが、極く弱いことに着目し、軟磁
性材粉末に直接浮遊物微粒子を吸着除去する方法を試験
した結果、約70〜80％程度の微粒子だけを極く速い速度
で沈降除去できることを確認しこのような効果を更に向
上させるために浮遊微粒子と軟磁性材粉末の表面電荷を
同時に中和する方法を試験した結果、２−３分間で凝集
が生じ、５cm／分程度の極く速い速度で沈降することを
発見し、本発明を完成するに到った。In the present invention, various soft magnetic materials (ferrite), particularly metal composite oxide powders having a spinnel structure, have a high specific gravity of about 4.9, Although the surface charge characteristic is the same negative charge as the surface charge of suspended particles in water, it was noted that it was extremely weak, and as a result of testing the method of adsorbing and removing suspended particles directly on the soft magnetic material powder, about 70 ~ It was confirmed that only 80% of the fine particles could be settled and removed at an extremely high speed, and the method to neutralize the surface charge of the suspended fine particles and the soft magnetic material powder at the same time in order to further improve such an effect was tested. It was discovered that aggregation occurred in -3 minutes and sedimentation occurred at an extremely high speed of about 5 cm / minute, and the present invention was completed.
【０００７】スピンネル構造を有する各種の軟磁性材
(例えばMu-Zn系, Ni-Zn系, Mg-Mn-Zn系プェライト又はm
agnetite 等) の複合酸化物材料等は軟磁性を有し、化
学的にも極く安定し、比重が4.９以上であることがわか
った。このように比重が大きく安定な物質の粉末と水中
の浮遊微粒子粉末とが凝集するようになれば凝集微粒子
等の沈降速度が速いことは当然であり、本発明の特徴と
なる。Various soft magnetic materials having a spinnel structure
(For example, Mu-Zn system, Ni-Zn system, Mg-Mn-Zn system Pellite or m
It was found that complex oxide materials such as agnetite) have soft magnetism, are extremely stable chemically, and have a specific gravity of 4.9 or more. When the powder of a stable substance having a large specific gravity and the powder of suspended fine particles in water are aggregated as described above, the sedimentation speed of the aggregated fine particles is naturally high, which is a feature of the present invention.
【０００８】即ち、本発明に使用する軟磁性材は粉末粒
度が平均５μ程度のものを選択し、白礬（KAl(SO4 )
2 ）又はＰＡＣ溶液又はFeCl3 溶液で処理し、軟磁性
材粉の表面電荷が中性又は正電荷になるようにしたのも
のを、濁水の濁度に従って所定の量を投入する。これを
200〜300 rpm で１〜２分間攪拌することにより、各軟
磁性材粉末に浮遊物粒子が凝集しながら粒子が約0.２〜
1.０mmのサイズに成長する現象を肉眼で確認することが
できた。攪拌を停止したところ、約５cm／分の沈降速度
で迅速に沈降し高性能の浄水能力を有することを確認し
た。フェライト粉末はそれ自体が水中の浮遊微細粒子等
に対する吸着能が有り、廃水ないし工業用水の浄水には
フェライトだけで処理しても効果が充分である。しかし
ながら、上水源の処理にはフェライトの表面特性を +３
価金属塩、特にアルミニウム塩を使用して改質させて使
用するのが好ましい。That is, the soft magnetic material used in the present invention is selected to have a powder particle size of about 5 μm on average, and white soft sand (KAl (SO 4 )
2 ) Or treated with a PAC solution or FeCl 3 solution to make the surface charge of the soft magnetic material powder neutral or positive, and put a predetermined amount according to the turbidity of turbid water. this
By stirring at 200 to 300 rpm for 1 to 2 minutes, the suspended particles are aggregated in each soft magnetic material powder, and the particles are about 0.2 to 2.
The phenomenon of growth to a size of 1.0 mm could be confirmed with the naked eye. When the stirring was stopped, it was confirmed that it rapidly settled at a sedimentation speed of about 5 cm / min and had a high-performance water purification capacity. Ferrite powder itself has an adsorbing ability for suspended fine particles in water, and it is sufficiently effective to treat waste water or industrial water by using ferrite alone. However, the surface characteristics of ferrite should be +3 for the treatment of tap water sources.
It is preferable to modify and use a valent metal salt, particularly an aluminum salt.
【０００９】特に従来の明礬又はＰＡＣ法においては、
数十分混合及び２〜４時間の沈澱時間を要するのに比べ
て、本発明の場合は、混合と沈澱過程全部を数十分で完
了することができ、本発明は極く迅速で効果的な迅速凝
集沈澱による浄水方法であることがわかる。又軟磁性材
粉末は磁力選別により容易に経済的に回収再使用するこ
とができ、特にスピンネル構造となっていて化学的に極
く安定であることから成分金属の溶出のおそれが全く無
く、また軟磁性材を使用するので、浄水槽下段に沈澱分
離された汚泥状のスラリは磁力選別により磁性材を浮遊
物から容易に分離回収して再使用することができ、分離
された浮遊物は従来の濾過方法により処理可能であると
いう特徴を有している。Particularly in the conventional alum or PAC method,
In the present invention, the whole mixing and precipitation process can be completed in a few tens of minutes, as compared with the case of requiring a few tens of minutes and a precipitation time of 2 to 4 hours. It can be seen that this is a water purification method by rapid rapid coagulation precipitation. Further, the soft magnetic material powder can be easily and economically recovered and reused by magnetic selection, and in particular, since it has a spinnel structure and is chemically extremely stable, there is no possibility of elution of component metals. Since a soft magnetic material is used, sludge-like slurry that has been settled and separated in the lower part of the water purification tank can be easily separated and recovered from the suspended magnetic material by magnetic separation and reused. It has the feature that it can be processed by the filtration method of.
【００１０】前述したように、本発明において使用する
軟磁性材は色々な種類があり、各種の電子機器用コア
(core) 製造用材料と同一のものであるが、軟磁性材成
分金属の溶出による２次的汚染を防止するためにはスピ
ンネル構造となるように充分に高温で長時間反応させて
製造したものが有用である。特に各種コア製造過程で発
生する不良品のコアを微粉砕して使用する場合には化学
的に安定し、かつ極めて経済的である。As described above, there are various kinds of soft magnetic materials used in the present invention, and various kinds of cores for electronic equipment are used.
(core) Same as the manufacturing material, but manufactured by reacting at a sufficiently high temperature for a long time to have a spinel structure in order to prevent secondary contamination due to elution of the soft magnetic material component metal Is useful. In particular, when a defective core produced during various core manufacturing processes is used after being finely pulverized, it is chemically stable and extremely economical.
【００１１】[0011]
【実施例】以下、本発明を実施例により詳細に説明す
る。実施例１ Mg-Mn-Zn系軟磁性材 (ferrite)粉末 (平均粒度５μ) １
kgに200gのＰＡＣを加えてフェライト粉末の表面特性を
改質したもの0.5gを濁度 149である水１Ｌに加えてフェ
ライト粒子が充分に流動できる程度に３分間攪拌した
後、３分間静置して上澄水から試料を採取して濁度を測
定した結果、0.８を示した。特に静置時間３の間に浮遊
微粒子等はフェライト粉末と共に完全に容器の底に沈澱
した。実施例２ 実施例１の改質されたフェライト粉末0.5gを濁度15であ
る水１Ｌに加えて実施例１のように実施した結果、上澄
水の濁度0.６を示した。実施例３ 改質されていないMg-Mn-Zn系フェライト粉末1.0gを濁度
15の水１Ｌに加え３分間攪拌した後、３分間静置して上
澄水の濁度を測定した結果、2.０を示した。実施例４ マグネタイト粉末100gにＰＣＡ20g を加えてマグネタイ
ト粉末の表面特性を改質したもの0.5gを濁度120 の水１
Ｌに加えて攪拌した後、３分間静置し、上澄水から採取
した試料の濁度は1.１を示した。実施例５ 軟磁性材コア製造工場で発生する不良のコア等を収集
し、各種軟磁性材の混合物粉末を平均粒度５μm 程度に
粉砕して用意し、実施例１のような方法により実験を実
施して同様な効果を得た。実施例６ 実施例５で使用した軟磁性材混合粉末100gに第２塩化鉄
40g を加えて軟磁性材粉末の表面を改質したもの0.6gを
濁度120 の水１Ｌに加えて１分間攪拌した後、静置し、
３分後の上澄水試料の濁度を測定した結果、1.05を示し
た。固形浮遊物は軟磁性材粉末と共に凝集し、５分後に
は完全に沈降した。実施例７ 実施例５で使用した軟磁性材混合粉末100gにアミン系凝
集剤 (Superfloc)７gを加えて混合したもの0.45g を濁
度95の水１Ｌに加えて１分間攪拌した後、静置した。５
分30秒後、固形浮遊物は軟磁性材粉末と共に凝集し、完
全に沈降した。上澄水の濁度は0.95を示した。EXAMPLES The present invention will be described in detail below with reference to examples. Example 1 Mg-Mn-Zn based soft magnetic material (ferrite) powder (average particle size 5μ) 1
200 g of PAC was added to kg to modify the surface characteristics of the ferrite powder, 0.5 g of which was added to 1 L of water with a turbidity of 149, and the mixture was stirred for 3 minutes to allow the ferrite particles to flow sufficiently, then allowed to stand for 3 minutes. Then, a sample was taken from the supernatant water and the turbidity was measured, and the result was 0.8. In particular, during the standing time 3, the suspended fine particles and the like were completely precipitated at the bottom of the container together with the ferrite powder. Example 2 0.5 g of the modified ferrite powder of Example 1 was added to 1 L of water having a turbidity of 15 and the same procedure as in Example 1 was performed. As a result, the turbidity of the supernatant water was 0.6. Example 3 Turbidity of 1.0 g of unmodified Mg-Mn-Zn ferrite powder
The mixture was added to 15 liters of water (1 L), stirred for 3 minutes, and allowed to stand for 3 minutes, and the turbidity of the supernatant water was measured. The result was 2.0. Example 4 100 g of magnetite powder was added with 20 g of PCA to improve the surface characteristics of the magnetite powder, and 0.5 g was added to water 1 with a turbidity of 120.
After adding to L and stirring, the mixture was allowed to stand for 3 minutes and the turbidity of the sample collected from the supernatant water was 1.1. Example 5 Soft magnetic material core A defective core or the like generated in a factory is collected, and a mixture powder of various soft magnetic materials is crushed to an average particle size of about 5 μm and prepared, and an experiment is performed by the method as in Example 1. And obtained the same effect. Example 6 Ferric chloride was added to 100 g of the soft magnetic material mixed powder used in Example 5.
After adding 40 g, the surface of the soft magnetic material powder was modified, 0.6 g was added to 1 L of water with a turbidity of 120, and the mixture was stirred for 1 minute and then allowed to stand.
As a result of measuring the turbidity of the supernatant water sample after 3 minutes, it was 1.05. The solid suspension aggregated with the soft magnetic material powder and completely settled after 5 minutes. Example 7 A mixture of 100 g of the soft magnetic material powder used in Example 5 and 7 g of an amine-based coagulant (Superfloc) was added and 0.45 g was added to 1 L of water having a turbidity of 95, and the mixture was stirred for 1 minute and then left to stand. did. 5
After 30 minutes, the solid suspension aggregated with the soft magnetic material powder and completely settled. The turbidity of the supernatant water was 0.95.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 太 範 錫 大韓民国ソウル特別市恩平區葛▲よん▼洞 489−７ (72)発明者 康 澤 官 大韓民国ソウル特別市城北區長位２洞68− 1204 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Tae-Sung, Sung-gu, Seoul, Republic of Korea, Eunpyeong-gul ▲ yon-dong 489-7 (72) Inventor, Yasushi Kan, 2nd dong 68, Seongbuk-jo, Seoul, Korea 1204
Claims (2)
水する方法において、沈降剤として軟磁性材 (ferrite)
粉末を使用することを特徴とする速成凝集沈降浄水方
法。1. A method of purifying water by flocculating suspended matter in various raw water, wherein a soft magnetic material (ferrite) is used as a sedimentation agent.
A quick-coagulation sedimentation water purification method characterized by using a powder.
２鉄塩等の３価金属、又はアミン、アミド系合成高分子
凝集剤と混合して改質させて使用することを特徴とする
請求項１に記載の速成凝集沈降浄水方法。2. The soft magnetic material is used by being mixed with a trivalent metal such as an aluminum salt or a ferric salt, or an amine or amide-based synthetic polymer flocculant in advance for modification. Item 1. The rapid aggregation sedimentation water purification method according to Item 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910001802A KR940000550B1 (en) | 1991-02-02 | 1991-02-02 | Process for separating suspended solid particles from liquids |
| KR91-1802 | 1991-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH078968A true JPH078968A (en) | 1995-01-13 |
Family
ID=19310658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4006941A Pending JPH078968A (en) | 1991-02-02 | 1992-01-17 | Method of purifying water by rapid flocculation and sedimentation |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH078968A (en) |
| KR (1) | KR940000550B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056573A (en) * | 1996-07-30 | 2000-05-02 | Alps Electric Co., Ltd. | IC card connector |
| JP2010022888A (en) * | 2008-07-15 | 2010-02-04 | Toshiba Corp | Water purification material and water purification method using it |
| JP2010131499A (en) * | 2008-12-03 | 2010-06-17 | Sumitomo Heavy Ind Ltd | Sludge dewatering method |
| JP2010131500A (en) * | 2008-12-03 | 2010-06-17 | Sumitomo Heavy Ind Ltd | Sludge treatment method and sludge treatment apparatus |
| JP2011083653A (en) * | 2009-10-13 | 2011-04-28 | Nagaoka Univ Of Technology | Ferrite balloon-polymer composite flocculant, method for manufacturing the same, and flocking settling method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5488656A (en) * | 1977-12-24 | 1979-07-13 | Miura Eng Internatl Kk | Nethod of separating miscellaneous matters contained in waste water |
| JPS5667584A (en) * | 1979-11-02 | 1981-06-06 | Boliden Ab | Method of refining water |
| JPS635122A (en) * | 1986-06-24 | 1988-01-11 | Sanshin Ind Co Ltd | Throttle opening detector |
-
1991
- 1991-02-02 KR KR1019910001802A patent/KR940000550B1/en not_active IP Right Cessation
-
1992
- 1992-01-17 JP JP4006941A patent/JPH078968A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5488656A (en) * | 1977-12-24 | 1979-07-13 | Miura Eng Internatl Kk | Nethod of separating miscellaneous matters contained in waste water |
| JPS5667584A (en) * | 1979-11-02 | 1981-06-06 | Boliden Ab | Method of refining water |
| JPS635122A (en) * | 1986-06-24 | 1988-01-11 | Sanshin Ind Co Ltd | Throttle opening detector |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056573A (en) * | 1996-07-30 | 2000-05-02 | Alps Electric Co., Ltd. | IC card connector |
| JP2010022888A (en) * | 2008-07-15 | 2010-02-04 | Toshiba Corp | Water purification material and water purification method using it |
| JP2010131499A (en) * | 2008-12-03 | 2010-06-17 | Sumitomo Heavy Ind Ltd | Sludge dewatering method |
| JP2010131500A (en) * | 2008-12-03 | 2010-06-17 | Sumitomo Heavy Ind Ltd | Sludge treatment method and sludge treatment apparatus |
| JP2011083653A (en) * | 2009-10-13 | 2011-04-28 | Nagaoka Univ Of Technology | Ferrite balloon-polymer composite flocculant, method for manufacturing the same, and flocking settling method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR940000550B1 (en) | 1994-01-24 |
| KR920016126A (en) | 1992-09-24 |
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