JPH03213189A - Waste water treatment - Google Patents
Waste water treatmentInfo
- Publication number
- JPH03213189A JPH03213189A JP881890A JP881890A JPH03213189A JP H03213189 A JPH03213189 A JP H03213189A JP 881890 A JP881890 A JP 881890A JP 881890 A JP881890 A JP 881890A JP H03213189 A JPH03213189 A JP H03213189A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- fat
- raw water
- oil
- ultrasonic
- 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
Landscapes
- Removal Of Floating Material (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は浄化槽汚泥、生活系排水汚泥、し尿等の有機性
廃水の廃水処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for treating organic wastewater such as septic tank sludge, domestic wastewater sludge, and human waste.
従来の技術
従来、浄化槽汚泥、生活系排水汚泥、し尿等の有機性廃
水中の油脂分を除去する方法として単純浮上分離法や限
外濾過法がある。単純浮上分離法は比重差により油脂分
を廃水の水面に浮上させるものであり、限外濾過法は限
外濾過膜により廃水中の油脂分を捕捉するものでる。2. Description of the Related Art Conventionally, methods for removing oil and fat from organic wastewater such as septic tank sludge, domestic wastewater sludge, and human waste include a simple flotation separation method and an ultrafiltration method. The simple flotation separation method is a method in which fats and oils float to the surface of wastewater due to the difference in specific gravity, and the ultrafiltration method is a method in which fats and oils in wastewater are captured using an ultrafiltration membrane.
発明が解決しようとする課題
しかし、上記した単純浮上分離法においては、廃水中の
油脂分が比較的大きな粒径の粗大粒子であることが条件
とされる問題があり、限外濾過法においは、比較的小さ
い粒径の油脂分まで捕捉することができるが、油脂分と
ともに廃水中に含まれる夾雑物などにより限外濾過膜が
目詰りする問題があった。Problems to be Solved by the Invention However, the simple flotation separation method described above has the problem that the oil content in the wastewater must be coarse particles with a relatively large particle size, and the ultrafiltration method Although it is possible to capture even oils and fats with a relatively small particle size, there is a problem in that the ultrafiltration membrane is clogged with foreign substances contained in the wastewater along with the oils and fats.
本発明は上記課題を解決するもので、廃水中の比較的小
さな粒径の油脂分まで除去することができ、かつ廃水中
の夾雑物に分離作用を阻害されることがない廃水処理方
法を提供することを目的とする。The present invention solves the above-mentioned problems, and provides a wastewater treatment method that can remove even relatively small particle-sized oils and fats from wastewater, and in which the separation action is not inhibited by impurities in the wastewater. The purpose is to
課題を解決するための手段
上記課題を解決するために本発明は、浮上分離槽に貯留
された原水に超音波振動を与え、超音波振動により原水
中に溶解した油脂分を凝集させて浮上分離するとともに
、超音波振動により原水中に発生する微細気泡に原水中
の油脂分を吸着させて浮上分離する構成としたものであ
る。Means for Solving the Problems In order to solve the above problems, the present invention applies ultrasonic vibrations to raw water stored in a flotation separation tank, and uses the ultrasonic vibrations to agglomerate fats and oils dissolved in the raw water to perform flotation separation. At the same time, the structure is such that oil and fat in the raw water are adsorbed by microbubbles generated in the raw water by ultrasonic vibrations and separated by flotation.
作用
上記した構成により、超音波振動による凝集作用によっ
て原水中に溶解した比較的小さい粒径の油脂分を浮上分
離することができ、さらに超音波振動による発泡作用に
より生じた微細気泡によって原水中の油脂分を吸着して
浮上分離を促進することができる。Function: With the above-mentioned configuration, it is possible to float and separate oils and fats with a relatively small particle size dissolved in the raw water by the agglomeration effect caused by ultrasonic vibration, and furthermore, by the microbubbles generated by the foaming effect by the ultrasonic vibration, the oil and fat in the raw water can be separated. It can adsorb oils and fats and promote flotation separation.
実施例
以下本発明の一実施例を図面に基づいて説明する。第１
図において、浮上分離槽１の上部には原水２を供給する
ための供給管３が開口しており、浮上分離槽１は適当水
深位置に開口する送水管４を介して次工程の処理槽（図
示せず）に連通している。そして、浮上分離槽１の底部
には超音波端子部５が設けられており、超音波端子部５
は超音波発振装置６に接続されている。また、浮上分離
槽１には浮上分離した油脂分を排出するための排出装置
７が設けられている。EXAMPLE An example of the present invention will be described below based on the drawings. 1st
In the figure, a supply pipe 3 for supplying raw water 2 is opened at the upper part of the flotation tank 1, and the flotation tank 1 is connected to a treatment tank for the next process ( (not shown). An ultrasonic terminal section 5 is provided at the bottom of the flotation separation tank 1.
is connected to the ultrasonic oscillator 6. Further, the flotation separation tank 1 is provided with a discharge device 7 for discharging the floated and separated fats and oils.
以下、上記構成における作用について説明する。Hereinafter, the effects of the above configuration will be explained.
原水２は供給管３から浮上分離槽１に流入して滞留し、
浮上分離槽１において原水２に含まれた比較的大きな粒
径の油脂分が単純浮上分離する。そして、超音波発振装
置６によって発振される超音波を超音波端子部５から原
水２に対して発信し、原水２に超音波振動を与える。こ
の超音波振動による凝集作用によって原水２の中に溶解
した比較的小さい粒径の油脂分が大きな粒径に凝集して
浮上分離し、さらに超音波振動による発泡作用により生
じた微細気泡が原水２の中の油脂分を吸着して浮上分離
を促進させる。そして、原水２の水面上に浮上した油脂
分は排出装置７によって浮上分離槽１の外部に排出され
、油脂分を分離された原水２は送水管４を通って次工程
に送られる。The raw water 2 flows into the flotation separation tank 1 from the supply pipe 3 and stays there,
In the flotation separation tank 1, fats and oils having a relatively large particle size contained in the raw water 2 are simply floated and separated. Then, ultrasonic waves oscillated by the ultrasonic oscillator 6 are transmitted from the ultrasonic terminal portion 5 to the raw water 2 to impart ultrasonic vibrations to the raw water 2. Due to the aggregation effect caused by this ultrasonic vibration, oils and fats with a relatively small particle size dissolved in the raw water 2 agglomerate into large particle sizes and are floated and separated, and further, fine bubbles generated by the foaming effect due to the ultrasonic vibration are released into the raw water 2. Adsorbs oil and fat in the water and promotes flotation and separation. The fats and oils that have floated on the surface of the raw water 2 are discharged to the outside of the flotation tank 1 by the discharge device 7, and the raw water 2 from which the fats and oils have been separated is sent to the next process through the water pipe 4.
発明の効果
以上述べたように本発明によれば、超音波振動による凝
集作用によって原水中に溶解した比較的小さい粒径の油
脂分を浮上分離することができ、さらに超音波振動によ
る発泡作用により生じた微細気泡によって原水中の油脂
分を吸着して浮上分離を促進することができる。Effects of the Invention As described above, according to the present invention, it is possible to float and separate oils and fats with a relatively small particle size dissolved in raw water by the aggregation effect caused by ultrasonic vibration, and furthermore, by the foaming effect caused by ultrasonic vibration. The generated microbubbles can adsorb fats and oils in the raw water to promote flotation and separation.
第１図は本発明の一実施例を示す全体構成図である。
１・・・浮上分離槽、２・・・原水、５・・・超音波端
子部、６・・・超音波発振装置。FIG. 1 is an overall configuration diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Flotation separation tank, 2...Raw water, 5...Ultrasonic terminal part, 6...Ultrasonic oscillator.
Claims (1)
超音波振動により原水中に溶解した油脂分を凝集させて
浮上分離するとともに、超音波振動により原水中に発生
する微細気泡に原水中の油脂分を吸着させて浮上分離す
ることを特徴とする廃水処理方法。1. Applying ultrasonic vibration to the raw water stored in the flotation separation tank,
Wastewater characterized by using ultrasonic vibrations to agglomerate fats and oils dissolved in raw water and flotation-separating them, as well as allowing the fats and oils in the raw water to be adsorbed to microbubbles generated in the raw water by ultrasonic vibrations for flotation-separation. Processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP881890A JPH03213189A (en) | 1990-01-18 | 1990-01-18 | Waste water treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP881890A JPH03213189A (en) | 1990-01-18 | 1990-01-18 | Waste water treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03213189A true JPH03213189A (en) | 1991-09-18 |
Family
ID=11703392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP881890A Pending JPH03213189A (en) | 1990-01-18 | 1990-01-18 | Waste water treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03213189A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020050043A (en) * | 2000-12-20 | 2002-06-26 | 노치현 | Dissolving method of Air(or Gas) in the Water using Ultrasonic |
| WO2003086978A1 (en) * | 2002-04-15 | 2003-10-23 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. | Flotation installation for wastewater clarification and method for operating one such installation |
| KR100880387B1 (en) * | 2007-02-15 | 2009-01-30 | 신대한정유산업(주) | Ion Refined Oil Production System Using Resonance Resonance System and Waste Oil Purification Method |
| CN104140184A (en) * | 2014-04-12 | 2014-11-12 | 北京工业大学 | Treatment method for oily sludge of oil refinery |
| CN116174168A (en) * | 2018-08-01 | 2023-05-30 | 奥图泰(芬兰)公司 | Flotation cell |
-
1990
- 1990-01-18 JP JP881890A patent/JPH03213189A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020050043A (en) * | 2000-12-20 | 2002-06-26 | 노치현 | Dissolving method of Air(or Gas) in the Water using Ultrasonic |
| WO2003086978A1 (en) * | 2002-04-15 | 2003-10-23 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. | Flotation installation for wastewater clarification and method for operating one such installation |
| KR100880387B1 (en) * | 2007-02-15 | 2009-01-30 | 신대한정유산업(주) | Ion Refined Oil Production System Using Resonance Resonance System and Waste Oil Purification Method |
| CN104140184A (en) * | 2014-04-12 | 2014-11-12 | 北京工业大学 | Treatment method for oily sludge of oil refinery |
| CN104140184B (en) * | 2014-04-12 | 2016-01-13 | 北京工业大学 | A kind for the treatment of process of refinery oily sludge |
| CN116174168A (en) * | 2018-08-01 | 2023-05-30 | 奥图泰(芬兰)公司 | Flotation cell |
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