JPH0331118B2 - - Google Patents
Info
- Publication number
- JPH0331118B2 JPH0331118B2 JP61070085A JP7008586A JPH0331118B2 JP H0331118 B2 JPH0331118 B2 JP H0331118B2 JP 61070085 A JP61070085 A JP 61070085A JP 7008586 A JP7008586 A JP 7008586A JP H0331118 B2 JPH0331118 B2 JP H0331118B2
- Authority
- JP
- Japan
- Prior art keywords
- anode plate
- sludge
- flotation
- electrolytic cell
- plate
- 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
- 238000005188 flotation Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 6
- 238000007790 scraping Methods 0.000 claims description 3
- 239000011550 stock solution Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
- Treatment Of Sludge (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は、下水汚泥等の浮上濃縮装置の改良
に関する。従来、下水汚泥等の浮上濃縮装置とし
ては、汚泥中に加圧空気を吹き込んで、微細な気
泡によつて、原液中の浮遊物を浮上分離するも
の、また、汚泥を電気分解して電極部に発生する
水素ガスや酸素ガスによつて浮遊物を浮上させる
ものがあるが、この発明は、その後者の改良に関
するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an improvement in a flotation concentration device for sewage sludge, etc. Conventionally, flotation and concentration devices for sewage sludge, etc., have been used to blow pressurized air into the sludge to create fine air bubbles to float and separate suspended matter in the raw solution, and to electrolyze the sludge to separate the suspended matter from the undiluted solution using an electrode section. There are some devices that levitate floating objects using hydrogen gas or oxygen gas generated during the process, and this invention relates to an improvement of the latter.
「従来の技術」
従来、この種電気分解による浮上濃縮装置とし
ては、例えば、実公昭52−55163号があり、この
考案は、電極板面が汚れて、電解効率が低下する
のを防止するために、その処理水の一部を循環さ
せて、その循環路中に電極板を位置させたもので
ある。``Prior Art'' Conventionally, as a flotation concentration device using this type of electrolysis, there is, for example, Utility Model Publication No. 52-55163. Then, a portion of the treated water is circulated, and an electrode plate is placed in the circulation path.
「発明が解決しようとする問題点」
然しながら、上述のような従来装置では、電極
板面を清掃するのに、処理水の一部の流動を利用
するだけであるので、充分に清掃することができ
ず、また、構造的にも大容量、大能力の処理装置
は実現し難い。``Problems to be solved by the invention'' However, in the conventional device as described above, only a part of the flow of the treated water is used to clean the electrode plate surface, so it is not possible to clean the electrode plate surface sufficiently. Moreover, it is structurally difficult to realize a processing device with a large capacity and a large capacity.
「問題点を解決するための手段」
そこで、この発明においては、電極板面を清掃
するのに、機械的手段を用いて、電極板面に付着
した汚れを確実に除去し、電解能力が低下するの
を防止するとともに、多数の電極板を用いて大量
の原液を連続して処理することができる装置を実
現したものであり、その要旨とするところは、電
解槽内に多数の陰極板を並列するとともに、、こ
れら陰極板の中間には、電解槽に支架した回転軸
に設けた陽極板を相対向させて設け、この陽極板
の回転周辺部分に臨ませてスクレーパを設け、さ
らに、槽内液面部分に浮上物の掻取装置を設けた
ものである。"Means for Solving the Problem" Therefore, in this invention, when cleaning the electrode plate surface, mechanical means are used to reliably remove the dirt adhering to the electrode plate surface, thereby reducing the electrolytic ability. We have realized a device that can continuously process a large amount of undiluted solution using a large number of electrode plates. At the same time, between these cathode plates, an anode plate mounted on a rotating shaft supported by the electrolytic cell is provided facing each other, and a scraper is provided facing the rotating periphery of this anode plate. A device for scraping floating objects is installed on the internal liquid surface.
「作 用」
この発明に係る装置は、上述のように構成され
ており、従つて、電極板に通電すると電極板の表
面には、水素や酸素等の微細な気泡が生じ、この
気泡が浮上する際に、原液中の浮遊物に付着して
浮上させ、液面部に浮遊物の濃縮層が形成され
る。そして、この濃縮層は、適宜、掻取られて原
液と分離されるものであるが、この一連の濃縮分
離操作過程において、この発明では、陽極板の回
転周辺部分に臨ませて、その表面の付着物の掻取
装置が設けてあるので、その表面部に汚れや気泡
が残溜することがなく、極面が常に清浄で高い電
解能力を維持する。すなわち、陽極板の表面には
酸素が発生し、この酸素が極板と反応して酸化物
を造り、通電を阻害するであるが、この酸化物を
除去することができるのである。また、陽極板が
回転しているので、正、負の極板間の原液が流動
し、浮遊物を停滞させることなく、浮上せしめる
ことができる。"Function" The device according to the present invention is constructed as described above, and therefore, when electricity is applied to the electrode plate, fine bubbles of hydrogen, oxygen, etc. are generated on the surface of the electrode plate, and these bubbles float to the surface. When doing so, it adheres to floating substances in the stock solution and floats them, forming a concentrated layer of floating substances on the liquid surface. This concentrated layer is appropriately scraped and separated from the stock solution, but in this series of concentration and separation operations, in this invention, the surface of the anode plate is exposed to the area around the rotation of the anode plate. Since a device for removing deposits is provided, dirt and air bubbles do not remain on the surface, and the electrode surface is always clean and maintains high electrolytic capacity. That is, oxygen is generated on the surface of the anode plate, and this oxygen reacts with the electrode plate to form oxides that inhibit current flow, but this oxide can be removed. Furthermore, since the anode plate is rotating, the undiluted solution flows between the positive and negative electrode plates, allowing floating objects to float without being stagnant.
「実施例」
これを図面に基づいて具体的に説明すれば、第
１図において、符号１は電解槽、２は電解槽に多
数並列固定した陰極板である。３は、電解槽１に
支架した回転軸に櫛歯状に多数並列した陽極板
で、それぞれが上述の陰極板２の中間に位置して
回転できるように設けてある。符号４は、陽極板
３の表面部に臨ませて設けたスクレーパであり、
また、５は浮上物掻取用のスキマである。６は浮
上物移送用のトラフ、７は分離水の取出口、８は
ドレン抜きである。尚、第２図に示すものは、陽
極板３の半体を液没させ、スクレーパ４を気中に
設けた一例である。``Example'' This will be explained in detail based on the drawings. In FIG. 1, reference numeral 1 denotes an electrolytic cell, and 2 denotes a large number of cathode plates fixed in parallel to the electrolytic cell. Reference numeral 3 denotes a large number of anode plates arranged in a comb-teeth pattern on a rotating shaft supported on the electrolytic cell 1, each of which is positioned between the cathode plates 2 and rotatable. Reference numeral 4 is a scraper provided facing the surface of the anode plate 3;
Moreover, 5 is a gap for scraping off floating objects. 6 is a trough for transferring floating objects, 7 is a separated water outlet, and 8 is a drain. In addition, what is shown in FIG. 2 is an example in which half of the anode plate 3 is submerged in liquid and the scraper 4 is provided in the air.
このように構成した装置で、陽極板３を回転さ
せつつ通電すると、電極板部に発生する気泡によ
つて、原液中の浮遊物は浮上し、液面部に濃縮層
を形成する。そして、この濃縮された浮遊物は、
スキマ５によつて掻取り、トラフ６を経て取出す
ことができる。以上の浮遊物の濃縮取出し操作に
おいて、この発明では、陽極板３の表面にはスク
レーパ４が摺接して、その表面の汚れを除去する
ので、電解能力を低下させることがなく、また、
陽極板３が回転しているので、正、負の極板間の
原液が流動する。従つて、極板間に浮遊物や気泡
が停滞することがなく、電解放電を阻害しないと
ともに、浮遊物を円滑に浮上させて、原液と分離
することができる。 When the anode plate 3 is rotated and energized in the apparatus configured as described above, suspended matter in the stock solution floats to the surface due to air bubbles generated in the electrode plate portion, forming a concentrated layer on the liquid surface. And this concentrated floating matter is
It can be scraped off through the gap 5 and taken out through the trough 6. In the above-described operation for concentrating and extracting suspended matter, in the present invention, the scraper 4 comes into sliding contact with the surface of the anode plate 3 to remove dirt from the surface, so that the electrolytic capacity is not reduced.
Since the anode plate 3 is rotating, the stock solution flows between the positive and negative plates. Therefore, floating objects and bubbles do not remain between the electrode plates, do not inhibit electrolytic discharge, and floating objects can be smoothly floated and separated from the stock solution.
「発明の効果」
以上の説明で明らかなように、この発明は、汚
泥等の電解槽濃縮装置において、気泡の発生する
陽極板を陰極板に対して回転可動するように設け
て、その表面部の汚れを除去するためのスクレー
パを設けることによつて、常時、陽極板の表面を
清浄に保つて、電解効率を低下させることがな
く、また、回転する陽極板によつて、正、負の極
板間において、原液を流動させることによつて、
極板間に気泡や浮遊物が停滞するのを防止して、
これらを円滑に浮上させるとともに、放電効果を
阻害するのを防止し得て、濃縮効率を格段に高め
得るものである。"Effects of the Invention" As is clear from the above explanation, the present invention provides an electrolytic cell concentrator for sludge, etc., in which an anode plate where air bubbles are generated is provided so as to be rotatable relative to a cathode plate, and its surface portion is By providing a scraper to remove dirt from the anode plate, the surface of the anode plate can be kept clean at all times without reducing the electrolytic efficiency. By flowing the stock solution between the electrode plates,
Prevents air bubbles and floating objects from stagnation between the electrode plates,
This allows these to float smoothly, prevents the discharge effect from being inhibited, and greatly increases the concentration efficiency.
第１図は、この発明を施した浮上濃縮装置の概
略の縦断側面図、第２図は、、同じく他の実施例
の縦断側面図である。
１……電解槽、２……陰極板、３……陽極板、
４……スクレーパ、５……スキマ。
FIG. 1 is a schematic vertical side view of a flotation concentrator according to the present invention, and FIG. 2 is a vertical side view of another embodiment. 1... Electrolytic cell, 2... Cathode plate, 3... Anode plate,
4... Scraper, 5... Clearance.
Claims (1)
もに、これら陰極板２の中間には、電解槽１に支
架した回転軸に設けた陽極板３を相対向させて設
け、この陽極板３の回転周返部分に臨ませてスク
レーパ４を設け、さらに、槽内液面部分に浮上物
の掻取装置５を設けてなる汚泥等の浮上濃縮装
置。 ２ 上記陽極板３が液中に没入させてある特許請
求の範囲第１項記載の汚泥等の浮上濃縮装置。 ３ 上記陽極板３の半体が液没させてある特許請
求の範囲第１項記載の汚泥等の浮上濃縮装置。[Scope of Claims] 1 A large number of cathode plates 2 are arranged in parallel in an electrolytic cell 1, and an anode plate 3 provided on a rotating shaft supported on the electrolytic cell 1 is placed between these cathode plates 2 to face each other. A flotation concentration device for sludge or the like is provided, in which a scraper 4 is provided facing the rotating part of the anode plate 3, and a device 5 for scraping floating objects is provided at the liquid level in the tank. 2. A flotation and concentration device for sludge, etc., according to claim 1, wherein the anode plate 3 is immersed in a liquid. 3. The flotation and concentration apparatus for sludge, etc. according to claim 1, wherein half of the anode plate 3 is submerged in liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61070085A JPS62227493A (en) | 1986-03-28 | 1986-03-28 | Apparatus for flotation concentration of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61070085A JPS62227493A (en) | 1986-03-28 | 1986-03-28 | Apparatus for flotation concentration of sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62227493A JPS62227493A (en) | 1987-10-06 |
| JPH0331118B2 true JPH0331118B2 (en) | 1991-05-02 |
Family
ID=13421345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61070085A Granted JPS62227493A (en) | 1986-03-28 | 1986-03-28 | Apparatus for flotation concentration of sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62227493A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1029832C (en) * | 1990-02-28 | 1995-09-27 | 威尔弗雷德·安东尼·默雷尔 | Water cleaning system |
| JP4511820B2 (en) * | 2003-11-14 | 2010-07-28 | 株式会社日立プラントテクノロジー | Sludge electrolyzer |
| CN105565438A (en) * | 2016-03-11 | 2016-05-11 | 上海丁香环境科技有限公司 | Automatic scale-scrapping type water treatment device |
| CN106006864A (en) * | 2016-06-27 | 2016-10-12 | 南京师范大学 | Modular rotation parallel multi-disc type electric flocculation device |
-
1986
- 1986-03-28 JP JP61070085A patent/JPS62227493A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62227493A (en) | 1987-10-06 |
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