JP2001170655A - Floccolation settling device and method - Google Patents
Floccolation settling device and methodInfo
- Publication number
- JP2001170655A JP2001170655A JP36323399A JP36323399A JP2001170655A JP 2001170655 A JP2001170655 A JP 2001170655A JP 36323399 A JP36323399 A JP 36323399A JP 36323399 A JP36323399 A JP 36323399A JP 2001170655 A JP2001170655 A JP 2001170655A
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- Prior art keywords
- ultrasonic waves
- water
- plate
- coagulation
- frequency
- Prior art date
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- Physical Water Treatments (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は工業用水、飲料水、
下水、排水などの浄化の際に行う凝集沈殿の水処理装置
および方法に関する。The present invention relates to industrial water, drinking water,
The present invention relates to a water treatment apparatus and method for coagulation and sedimentation performed during purification of sewage and wastewater.
【０００２】[0002]
【従来の技術】従来の浄水処理の凝集工程では、処理水
槽にアルミニウムや鉄系の凝集剤を添加し、処理水を攪
拌機にて十分に混和し浮遊物（SS：Suspended Solid）
を凝集させ、巨大なフロックを形成させフロックを沈殿
分離し水を浄化している。このとき、凝集の効率を高め
処理時間を短縮することや浮遊物ばかりでなく溶解性有
機物の除去を進めることが求められている。2. Description of the Related Art In the conventional coagulation process of water purification, an aluminum or iron-based coagulant is added to a treatment water tank, and the treated water is sufficiently mixed with a stirrer to form suspended solids (SS).
Coagulate to form huge flocs, sediment the flocs and separate them to purify water. At this time, it is required to increase the efficiency of aggregation and reduce the processing time, and to promote the removal of not only suspended matters but also soluble organic substances.
【０００３】一方、水処理において超音波を利用する装
置や方法が幾つか提案されている。用途も様々である
が、浮遊物を凝集させることを目的として超音波を用い
る従来の方法・装置としては、特開平９−１７４０６２
号公報や特開平９−１３６０９０号公報が提案されてい
る。[0003] On the other hand, there have been proposed some devices and methods using ultrasonic waves in water treatment. Although there are various uses, a conventional method / apparatus using ultrasonic waves for the purpose of coagulating suspended matter is disclosed in Japanese Patent Application Laid-Open No. Hei 9-174062.
And JP-A-9-136090 have been proposed.
【０００４】特に後者の特開平９−１３６０９０号公報
に開示される凝集沈殿装置では、超音波を共振させるた
めの超音波振動子と反射板の特定の配置が提案されてい
る。より具体的には、図４に示すように、水槽１の中に
超音波振動子２を、超音波振動子２が円心となるように
円筒状の反射板３を配置する。[0004] In particular, in the latter coagulation-sedimentation device disclosed in Japanese Patent Application Laid-Open No. 9-136090, a specific arrangement of an ultrasonic vibrator for resonating ultrasonic waves and a reflector is proposed. More specifically, as shown in FIG. 4, an ultrasonic vibrator 2 is disposed in a water tank 1, and a cylindrical reflector 3 is arranged such that the ultrasonic vibrator 2 has a circular center.
【０００５】しかしながら、上記方式では、超音波を共
振させるには超音波振動子２と反射板３の距離を超音波
の半波長の整数倍に厳密に一致させなくてはならない
が、上述した従来方式では、超音波振動子は周波数一定
であり、また、振動子と反射板の距離も固定してあるの
で、超音波波長や超音波振動子２と反射板３の距離の微
調整が不可能である。たとえ、超音波の波長や超音波振
動子と反射板の距離を厳密に調節して製作したとして
も、水質や水温で超音波波長は異なるのでやはり微調整
は必要となる。よって、従来方式では超音波を共振させ
ることはできず、効率よく浮遊物を凝集させることがで
きない。また、溶解性有機物の除去には全く触れていな
い。However, in the above method, the distance between the ultrasonic vibrator 2 and the reflecting plate 3 must be strictly equal to an integral multiple of a half wavelength of the ultrasonic wave in order to resonate the ultrasonic wave. In this method, the ultrasonic transducer has a constant frequency, and the distance between the transducer and the reflector is fixed. Therefore, fine adjustment of the ultrasonic wavelength and the distance between the ultrasound transducer 2 and the reflector 3 is impossible. It is. Even if the ultrasonic wave and the distance between the ultrasonic vibrator and the reflecting plate are strictly adjusted, fine adjustment is still required because the ultrasonic wavelength varies depending on water quality and water temperature. Therefore, in the conventional method, the ultrasonic waves cannot be resonated, and the suspended matter cannot be efficiently aggregated. Also, no mention is made of the removal of soluble organic matter.
【０００６】[0006]
【発明が解決しようとする課題】したがって、本発明
は、超音波を共振させることにより効率良く凝集を促進
させ、残留率を小さくしたり、処理時間を短縮すること
や溶解性有機物をも凝集させることを可能にする凝集沈
殿装置および方法を提供することを目的とする。SUMMARY OF THE INVENTION Therefore, the present invention efficiently promotes agglomeration by resonating ultrasonic waves, reduces the residual ratio, shortens the processing time, and agglomerates soluble organic matter. It is an object of the present invention to provide a coagulation sedimentation apparatus and a method capable of doing so.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記課題を解
決するためになされたもので、（１）水処理の凝集工程
において、水槽の向かい合う両側面に超音波を発生する
プレートを平行に設け、超音波を発生するプレートが周
波数可変であることを特徴とする凝集沈殿装置、（２）
水処理の凝集工程において、水槽の水面下０ｃｍ以上２
０ｃｍ以下の深さに超音波を発生するプレートを底の面
に平行に設置し、超音波の周波数が可変であることを特
徴とする凝集沈殿装置、（３）水処理の凝集工程におい
て、水槽の水面下０ｃｍ以上２０ｃｍ以下の深さに超音
波を発生するプレートを底の面に平行に設置し、プレー
トの高さが調節可能であることを特徴とする凝集沈殿装
置、（４）前記（１）または（２）に記載の凝集沈殿装
置において、超音波周波数を調節することにより超音波
を共振させて使用し、浮遊物および／また溶解性有機物
を除去することを特徴とする凝集沈殿方法、および
（５）前記（３）に記載の凝集沈殿装置において、底と
超音波プレートの距離を調節することにより超音波を共
振させて使用し、浮遊物および／また溶解性有機物を除
去することを特徴とする凝集沈殿方法を提供するもので
ある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. (1) In the coagulation step of water treatment, plates for generating ultrasonic waves are arranged in parallel on both opposite sides of a water tank. A coagulating sedimentation apparatus characterized in that the plate for generating ultrasonic waves is variable in frequency, (2)
In the coagulation step of the water treatment, 0 cm or more below the surface of the water tank 2
A coagulating sedimentation apparatus characterized in that a plate that generates ultrasonic waves at a depth of 0 cm or less is installed in parallel with the bottom surface, and the frequency of ultrasonic waves is variable; (3) a water tank in the coagulating step of water treatment A coherent sedimentation apparatus characterized in that a plate that generates ultrasonic waves at a depth of 0 cm or more and 20 cm or less below the surface of the water is installed parallel to the bottom surface, and the height of the plate is adjustable. In the coagulation sedimentation apparatus according to (1) or (2), the ultrasonic wave is adjusted so as to resonate and use the ultrasonic wave to remove suspended matter and / or soluble organic matter, and the coagulation sedimentation method. And (5) the coagulating sedimentation apparatus according to (3), wherein ultrasonic waves are resonated and used by adjusting the distance between the bottom and the ultrasonic plate to remove suspended matters and / or soluble organic substances. Characterized by It is intended to provide a coagulating sedimentation method.
【０００８】[0008]
【発明の実施の形態】本発明の装置及び方法は、水処理
の凝集工程において実施されるものである。BEST MODE FOR CARRYING OUT THE INVENTION The apparatus and method of the present invention are carried out in the coagulation step of water treatment.
【０００９】以下、本発明の凝集沈殿装置及び方法を図
面を参照しながら説明する。The coagulating sedimentation apparatus and method of the present invention will be described below with reference to the drawings.
【００１０】図１は、本発明の超音波を発生するプレー
トを水槽側面に設けた方式の装置の構成を示し、（１）
は上方から、（２）は側方から見た図である。図１に示
すように、水槽１が矩形の場合、向かい合う両側面４に
超音波を発生するプレート５を平行に設ける。また、図
２は、本発明の超音波を発生するプレートを水面付近に
設けた方式の装置の構成を表し、（１）は上方から、
（２）は側方から見た図である。図２に示すように、水
槽１が如何なる形状であっても、水面６もしくは水面６
よりやや下方（水面下２０ｃｍまでの深さ）に超音波を
発生するプレート５を底７の面に平行に設けることがで
きる。いずれの場合においても、プレート５から発生す
る超音波の周波数は可変にする。超音波の周波数を適当
に調節することにより、図１における両プレート５間の
距離や図２におけるプレート５と底７の距離が超音波の
半波長の整数倍と厳密に一致させることができ、共振を
得ることができる。FIG. 1 shows the structure of an apparatus of the present invention in which a plate for generating ultrasonic waves is provided on the side of a water tank, and (1)
Is a view from above, and (2) is a view from the side. As shown in FIG. 1, when the water tank 1 is rectangular, plates 5 for generating ultrasonic waves are provided in parallel on opposite side surfaces 4. FIG. 2 shows the configuration of an apparatus of the present invention in which a plate for generating ultrasonic waves is provided near the water surface.
(2) is the figure seen from the side. As shown in FIG. 2, the water surface 6 or the water surface 6
A plate 5 for generating ultrasonic waves slightly below (a depth of up to 20 cm below the water surface) can be provided parallel to the surface of the bottom 7. In any case, the frequency of the ultrasonic wave generated from the plate 5 is made variable. By appropriately adjusting the frequency of the ultrasonic wave, the distance between the two plates 5 in FIG. 1 and the distance between the plate 5 and the bottom 7 in FIG. 2 can be exactly equal to an integral multiple of half the wavelength of the ultrasonic wave, Resonance can be obtained.
【００１１】図２に示される態様の本発明の凝集沈殿装
置において、超音波を発生するプレートは、水面の乱れ
の影響は受けにくくしつつ本願発明による効果は有効に
施せるようにするために、水槽の水面下０ｃｍ以上２０
ｃｍ以下の深さにかつ底の面に平行に設置されることを
必須とする。この際、プレートを水槽の水面下２０ｃｍ
を超えて底面側に設置すると、本願発明による凝集沈殿
処置が施されない領域が大きくなり、ゆえに本願発明に
よる効果が有効に得られないため、好ましくない。ま
た、水面が乱れない状態では、水面下の深さが小さいほ
ど、有効な領域が広くなるため、水面が乱れない状態で
は、プレートを水面近くに設置することが好ましく、例
えば、プレートを、水面下０ｃｍ以上１０ｃｍ以下、よ
り好ましくは水面下０ｃｍ以上５ｃｍ以下の深さに設置
することが好ましい。さらに好ましくは、水面が全く乱
れない状態では、水面下０ｃｍ、言い換えると、水面
に、プレートを設置する。In the coagulating sedimentation apparatus of the present invention in the embodiment shown in FIG. 2, the plate for generating ultrasonic waves is made to be less susceptible to the turbulence of the water surface and to be able to effectively exert the effects of the present invention. 0cm or more below the surface of the water tank 20
It must be installed at a depth of not more than cm and parallel to the bottom surface. At this time, place the plate 20 cm below the surface of the water tank.
If it is installed on the bottom side beyond, the area where the coagulation and sedimentation treatment according to the present invention is not performed becomes large, so that the effect according to the present invention cannot be effectively obtained. In addition, in a state where the water surface is not disturbed, the effective area becomes wider as the depth below the water surface becomes smaller.In a state where the water surface is not disturbed, it is preferable to install the plate near the water surface. It is preferable to set it at a depth of 0 cm to 10 cm below, more preferably 0 cm to 5 cm below the water surface. More preferably, in a state where the water surface is not disturbed at all, the plate is set at 0 cm below the water surface, in other words, on the water surface.
【００１２】通常、超音波の発生には圧電素子の共振を
利用するので、周波数は一定である。しかし、超音波の
周波数を可変にするには、例えば、図３に示すような方
法が有効である。すなわち、プレート５の裏面に磁石８
を取り付け、その背後に電磁石９を配置する。電磁石９
へ交流を流せば、磁石８が振動し、プレート５より超音
波が発生する。このとき、交流周波数を変えることによ
って超音波周波数も可変になる。従来方式での棒状の超
音波振動子では、このような仕組みを設けることが不可
能であるが、本発明ではこの仕組みを設けることが可能
であり、共振を得ることができる。Usually, the frequency is constant because the resonance of the piezoelectric element is used for generating the ultrasonic waves. However, in order to make the frequency of the ultrasonic wave variable, for example, a method as shown in FIG. 3 is effective. That is, the magnet 8
Is attached, and the electromagnet 9 is arranged behind it. Electromagnet 9
When an alternating current flows, the magnet 8 vibrates, and an ultrasonic wave is generated from the plate 5. At this time, by changing the AC frequency, the ultrasonic frequency also becomes variable. It is impossible to provide such a mechanism in the conventional rod-shaped ultrasonic transducer, but in the present invention, it is possible to provide this mechanism, and resonance can be obtained.
【００１３】また図２において、共振を得るには底７と
超音波を発生するプレート５の距離を調節することも有
効である。この距離を超音波の半波長の整数倍に一致さ
せることで共振を得ることが可能である。この場合、超
音波を発生するプレート５は周波数可変である必要はな
く、従来の圧電効果を利用した超音波振動子でも構わな
い。また、プレートの高さを調節する方法としては、例
えば、超音波を発生するプレートを油圧式ジャッキーの
上に設置し、ジャッキーによる昇降で高さを調節する方
法などが挙げられるが、その他の方法でもプレートを高
さを調節できるものであれば使用できる。In FIG. 2, to obtain resonance, it is also effective to adjust the distance between the bottom 7 and the plate 5 for generating ultrasonic waves. Resonance can be obtained by matching this distance to an integral multiple of a half wavelength of the ultrasonic wave. In this case, the plate 5 that generates the ultrasonic waves does not need to be variable in frequency, and may be a conventional ultrasonic vibrator utilizing the piezoelectric effect. In addition, as a method of adjusting the height of the plate, for example, a method of installing a plate that generates ultrasonic waves on a hydraulic jack and adjusting the height by lifting and lowering with the jack, and the like. However, any plate whose height can be adjusted can be used.
【００１４】このように、本発明の凝集沈殿装置及び方
法を用いることによって、超音波の周波数や発生領域幅
を微調整することにより共振を得ることができる。そし
て共振させることにより浮遊物や溶解性有機物を凝集さ
せることができる。As described above, by using the apparatus and method for coagulation and sedimentation of the present invention, resonance can be obtained by finely adjusting the frequency of the ultrasonic wave and the width of the generation region. By causing resonance, suspended matter and soluble organic matter can be aggregated.
【００１５】また、本発明の凝集沈殿装置及び方法によ
り、液体中では浮遊物のような粒子は振動し、大きさの
異なる粒子は振幅が異なり、衝突頻度が高まる。また、
粒子は共振の節に集まる傾向があり、多くの粒子が同じ
場所に集まることになる。いずれにせよ、粒子は凝集す
る。Further, according to the apparatus and method for coagulation and sedimentation of the present invention, particles such as suspended matter oscillate in a liquid, and particles having different sizes have different amplitudes, thereby increasing the frequency of collision. Also,
Particles tend to collect at nodes of resonance, and many particles will collect at the same location. In any case, the particles agglomerate.
【００１６】さらに、共振の腹では周期ごとに液体の密
度が大きくなったり小さくなったりしており、温度も上
昇・下降を繰り返す。このとき溶解度が変化し溶解物が
粒子表面に析出するので溶解性有機物は凝集することが
できる。Further, at the antinode of the resonance, the density of the liquid increases or decreases in each cycle, and the temperature repeatedly rises and falls. At this time, the solubility changes and the dissolved substance precipitates on the particle surface, so that the soluble organic substance can aggregate.
【００１７】これらの共振の効果により、浮遊物や溶解
性有機物の凝集効率を高めることが可能になり、水処理
時間を短くすることが可能になる。Due to these resonance effects, it is possible to increase the efficiency of aggregation of suspended solids and soluble organic substances, and to shorten the water treatment time.
【００１８】[0018]
【実施例】以下、本発明の実施例により具体的に説明す
る。The present invention will now be described more specifically with reference to examples.
【００１９】実施例１ 凝集漕の次に濾過槽を備えた浄水処理装置の凝集工程に
おいて、（１）攪拌機を用いる方式（従来方式１）、
（２）共振の得られない従来の超音波を用いる方式（従
来方式２）、（３）向かい合う両側面に超音波を発生す
るプレートを平行に設けた凝集漕で周波数を調節し両プ
レート間の距離を超音波の半波長の整数倍に一致させ共
振させる方式（新方式１）、（４）水面に底の面と平行
に超音波を発生するプレートを設けた凝集漕で周波数を
調節し底とプレート間の距離を超音波の半波長の整数倍
に一致させ共振させる方式（新方式２）、（５）水面に
底の面と平行に超音波を発生するプレートを設けた凝集
漕で底とプレート間の距離を調節し超音波の半波長の整
数倍に一致させ共振させる方式（新方式３）を比較し
た。Example 1 In the coagulation step of the water purification treatment apparatus provided with a filtration tank next to the coagulation tank, (1) a method using a stirrer (conventional method 1),
(2) A method using conventional ultrasonic waves that cannot obtain resonance (conventional method 2), (3) The frequency is adjusted by a coagulation tank in which plates that generate ultrasonic waves are provided in parallel on both opposing side surfaces, and a frequency between the two plates is adjusted. A method that resonates by matching the distance to an integral multiple of half the wavelength of the ultrasonic wave (new method 1), (4) The frequency is adjusted by a coagulation tank equipped with a plate that generates ultrasonic waves parallel to the bottom surface on the water surface and the bottom is adjusted. (New method 2) where the distance between the plate and the plate is equal to an integral multiple of half the wavelength of the ultrasonic wave (new method 2). (5) The bottom is formed by a coagulation tank equipped with a plate that generates ultrasonic waves parallel to the bottom surface on the water surface. And a method of adjusting the distance between the plates and making the resonance equal to an integral multiple of a half wavelength of the ultrasonic wave and resonating (new method 3).
【００２０】従来方式１でのスクリュー回転や従来方式
２・新方式１・新方式２・新方式３での超音波の発生に
要した電力はそれぞれ２．５Ｗ、３Ｗ、３Ｗ、３Ｗ、３
Ｗであった。超音波周波数は、従来方式２および新方式
３で１００ｋＨｚ、新方式１、新方式２では共振させる
ために調節した後の周波数がそれぞれ８６ｋＨｚ、９０
ｋＨｚであった。超音波を発生させる距離は、従来方式
１や従来方式２・新方式１・新方式２で１０００ｍｍ、
新方式３では、共振させるために調節した後の距離は９
８６ｍｍであった。The power required for the rotation of the screw in the conventional method 1 and the generation of the ultrasonic waves in the conventional method 2, the new method 1, the new method 2, and the new method 3 are 2.5 W, 3 W, 3 W, 3 W, 3 W, respectively.
W. The ultrasonic frequency is 100 kHz in the conventional method 2 and the new method 3, and 86 kHz and 90 kHz, respectively, after being adjusted to resonate in the new method 1 and the new method 2.
kHz. The distance for generating ultrasonic waves is 1000 mm in the conventional method 1, the conventional method 2, the new method 1, and the new method 2,
In the new method 3, the distance after adjusting for resonance is 9
It was 86 mm.
【００２１】各方式での凝集漕、濾過漕の容量をそれぞ
れ４０ｍ3、５５ｍ3とし、また、滞留時間を１時間とし
て、処理前と処理後のＳＳ、Ｄ−ＴＯＣ（溶解性有機炭
素：Dissclued Organic Carbon）を調べた。結果を下記
表１に示す。The aggregation bath in each system, the capacity of the filtration bath and 40 m 3, 55m 3 respectively, also, a residence time as 1 hour, SS of before and after treatment, D-TOC (dissolved organic carbon: Dissclued Organic Carbon). The results are shown in Table 1 below.
【００２２】表１に示す通り、従来方式１、従来方式２
におけるＳＳ、Ｄ−ＴＯＣの残留率（処理後の量／処理
前の量）に大きな差はないが、新方式１、新方式２、新
方式３は従来方式１と従来方式２に比べて格段に残留率
が小さい。これから、本発明の凝集沈殿装置により浮遊
物と溶解性有機物の凝集効率が従来よりも有意に高くな
ることがわかった。As shown in Table 1, conventional method 1 and conventional method 2
There is no significant difference in the residual ratio of SS and D-TOC (amount after treatment / amount before treatment) in the above methods, but the new method 1, the new method 2, and the new method 3 are much different from the conventional method 1 and the conventional method 2. Low residual rate. From this, it was found that the coagulation sedimentation apparatus of the present invention significantly increased the coagulation efficiency of the suspended matter and the soluble organic substance as compared with the related art.
【００２３】[0023]
【表１】 [Table 1]
【００２４】実施例２ 凝集漕の次に濾過槽を備えた浄水処理装置の凝集工程に
おいて、（１）攪拌機を用いる方式（従来方式１）、
（２）共振の得られない従来の超音波を用いる方式（従
来方式２）、（３）向かい合う両側面に超音波を発生す
るプレートを平行に設けた凝集漕で周波数を調節し両プ
レート間の距離を超音波の半波長の整数倍に一致させ共
振させる方式（新方式１）、（４）水面に底の面と平行
に超音波を発生するプレートを設けた凝集漕で周波数を
調節し底とプレート間の距離を超音波の半波長の整数倍
に一致させ共振させる方式（新方式２）、（５）水面に
底の面と平行に超音波を発生するプレートを設けた凝集
漕で底とプレート間の距離を調節し超音波の半波長の整
数倍に一致させ共振させる方式（新方式３）を比較し
た。Example 2 In the coagulation step of the water purification treatment apparatus provided with a filtration tank next to the coagulation tank, (1) a method using a stirrer (conventional method 1),
(2) A method using conventional ultrasonic waves that cannot obtain resonance (conventional method 2), (3) The frequency is adjusted by a coagulation tank in which plates that generate ultrasonic waves are provided in parallel on both opposing side surfaces, and a frequency between the two plates is adjusted. A method that resonates by matching the distance to an integral multiple of half the wavelength of the ultrasonic wave (new method 1), (4) The frequency is adjusted by a coagulation tank equipped with a plate that generates ultrasonic waves parallel to the bottom surface on the water surface and the bottom is adjusted. (New method 2) where the distance between the plate and the plate is equal to an integral multiple of half the wavelength of the ultrasonic wave (new method 2). (5) The bottom is formed by a coagulation tank equipped with a plate that generates ultrasonic waves parallel to the bottom surface on the water surface. And a method of adjusting the distance between the plates and making the resonance equal to an integral multiple of a half wavelength of the ultrasonic wave and resonating (new method 3).
【００２５】各方式での凝集漕、濾過漕の容量は、それ
ぞれ４０ｍ3、５５ｍ3であり、従来方式１でのスクリュ
ー回転や従来方式２・新方式１・新方式２・新方式３で
の超音波の発生に要した電力はそれぞれ２．５Ｗ、３
Ｗ、３Ｗ、３Ｗであった。超音波周波数は、従来方式２
および新方式３で１００ｋＨｚ、新方式１、新方式２で
は共振させるために調節した後の周波数がそれぞれ８６
ｋＨｚ、９０ｋＨｚであった。超音波を発生させる距離
は、従来方式１や従来方式２・新方式１・新方式２で１
０００ｍｍ、新方式３では、共振させるために調節した
後の距離は９８６ｍｍであった。The aggregation bath in each system, the capacity of the filtration bath is 40 m 3, 55m 3 respectively, in the screw rotation and the conventional method 2, the new scheme 1-new scheme 2, the new scheme 3 in the conventional method 1 The power required to generate ultrasonic waves was 2.5 W and 3 W, respectively.
W, 3W and 3W. The ultrasonic frequency is the same as the conventional method 2
In the new method 3, the frequency after adjustment for resonance is 100 kHz, and in the new method 1 and the new method 2, the frequency after adjustment is 86.
kHz and 90 kHz. The distance for generating the ultrasonic wave is 1 in the conventional method 1, the conventional method 2, the new method 1, and the new method 2.
000 mm, and in the new method 3, the distance after adjustment for resonance was 986 mm.
【００２６】各方式で処理水のＳＳ、Ｄ−ＴＯＣがそれ
ぞれ５ｐｐｍ以下かつ１ｐｐｍ以下になる滞留時間を調
べた。結果を下記表２に示す。The residence time at which the SS and D-TOC of the treated water were 5 ppm or less and 1 ppm or less, respectively, was examined in each system. The results are shown in Table 2 below.
【００２７】表２に示す通り、滞留時間は、従来方式１
・従来方式２ではほぼ３０分であったが、新方式１、新
方式２、新方式３ではほぼ１０分であった。これから、
本発明の凝集沈殿装置を用いることにより処理時間が従
来よりも短縮できることが分かった。As shown in Table 2, the residence time was calculated according to the conventional method 1.
The time was about 30 minutes in the conventional method 2, but was about 10 minutes in the new method 1, the new method 2, and the new method 3. from now on,
It has been found that the treatment time can be shortened by using the coagulation sedimentation apparatus of the present invention as compared with the conventional method.
【００２８】[0028]
【表２】 [Table 2]
【００２９】[0029]
【発明の効果】本発明により、効率良く浮遊物や溶解性
有機物を凝集することができ、良好な水質を短い処理時
間で得ることが可能になった。According to the present invention, suspended matters and soluble organic substances can be efficiently agglomerated, and good water quality can be obtained in a short processing time.
【図１】は、本発明の超音波を発生するプレートを水槽
側面に設けた方式の装置の構成を表し、（１）は上方か
ら、（２）は側方から見た図である。FIG. 1 shows a configuration of an apparatus of the present invention in which a plate for generating ultrasonic waves is provided on a side surface of a water tank, where (1) is a view from above and (2) is a view from a side.
【図２】は、本発明の超音波を発生するプレートを水面
付近に設けた方式の装置の構成を表し、（１）は上方か
ら、（２）は側方から見た図である。FIGS. 2A and 2B show a configuration of an apparatus of the present invention in which a plate for generating ultrasonic waves is provided near a water surface, wherein FIG. 2A is a view seen from above and FIG. 2B is a view seen from a side.
【図３】は、周波数可変の超音波発生プレートの仕組み
の一例を表す図である。FIG. 3 is a diagram illustrating an example of a mechanism of a variable-frequency ultrasonic generating plate.
【図４】は、従来の装置の構成を表し、（１）は上方か
ら、（２）は側方から見た図である。FIGS. 4A and 4B show the configuration of a conventional apparatus, wherein FIG. 4A is a view from above and FIG. 4B is a view from the side.
１ 水槽、 ２ 超音波振動子、 ３ 反射板、 ４ 矩形水槽の側面、 ５ 超音波を発生させるプレート、 ６ 水面、 ７ 底、 ８ 磁石、 ９ 電磁石。 1 water tank, 2 ultrasonic vibrator, 3 reflector, 4 side of rectangular water tank, 5 plate generating ultrasonic waves, 6 water surface, 7 bottom, 8 magnet, 9 electromagnet.
フロントページの続き Ｆターム(参考） 4D015 BA21 BA29 BB01 CA01 CA14 EA35 4D037 AA01 AA11 AB02 BA26 BB01 CA02 4D062 BA21 BA29 BB01 CA01 CA14 EA35 Continued on the front page F term (reference) 4D015 BA21 BA29 BB01 CA01 CA14 EA35 4D037 AA01 AA11 AB02 BA26 BB01 CA02 4D062 BA21 BA29 BB01 CA01 CA14 EA35
Claims (5)
い合う両側面に超音波を発生するプレートを平行に設
け、超音波の周波数が可変であることを特徴とする凝集
沈殿装置。1. A coagulation sedimentation apparatus characterized in that, in the coagulation step of water treatment, plates that generate ultrasonic waves are provided in parallel on opposite side surfaces of the water tank, and the frequency of the ultrasonic waves is variable.
下０ｃｍ以上２０ｃｍ以下の深さに超音波を発生するプ
レートを底の面に平行に設置し、超音波の周波数が可変
であることを特徴とする凝集沈殿装置。2. In the coagulation step of the water treatment, a plate that generates ultrasonic waves at a depth of 0 cm or more and 20 cm or less below the surface of the water tank is installed in parallel with the bottom surface, and the frequency of the ultrasonic waves is variable. Coagulation and sedimentation equipment.
下０ｃｍ以上２０ｃｍ以下の深さに超音波を発生するプ
レートを底の面に平行に設置し、プレートの高さが調節
可能であることを特徴とする凝集沈殿装置。3. In the coagulation step of water treatment, a plate that generates ultrasonic waves at a depth of 0 cm or more and 20 cm or less below the surface of the water tank is installed parallel to the bottom surface, and the height of the plate is adjustable. A coagulating sedimentation apparatus.
殿装置において、超音波周波数を調節することにより超
音波を共振させて使用し、浮遊物および／また溶解性有
機物を除去することを特徴とする凝集沈殿方法。4. The coagulating sedimentation apparatus according to claim 1, wherein the ultrasonic frequency is adjusted to adjust the ultrasonic frequency so that the ultrasonic wave is resonated and used to remove suspended matters and / or soluble organic substances. Coagulation sedimentation method characterized.
て、底と超音波プレートの距離を調節することにより超
音波を共振させて使用し、浮遊物および／また溶解性有
機物を除去することを特徴とする凝集沈殿方法。5. The coagulating sedimentation apparatus according to claim 3, wherein the ultrasonic waves are resonated by adjusting the distance between the bottom and the ultrasonic plate to remove suspended matters and / or soluble organic substances. Coagulation sedimentation method characterized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36323399A JP2001170655A (en) | 1999-12-21 | 1999-12-21 | Floccolation settling device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36323399A JP2001170655A (en) | 1999-12-21 | 1999-12-21 | Floccolation settling device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001170655A true JP2001170655A (en) | 2001-06-26 |
Family
ID=18478832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36323399A Withdrawn JP2001170655A (en) | 1999-12-21 | 1999-12-21 | Floccolation settling device and method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001170655A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011524802A (en) * | 2008-12-24 | 2011-09-08 | クリスタル・ラグーンズ・コーポレーション・エルエルシー | Efficient filtration process of water in aquarium for recreational facilities and decorative use, where filtration is performed on a small amount of water and not on the total volume of aquarium water process |
| CN113262560A (en) * | 2021-04-27 | 2021-08-17 | 中铁工程服务有限公司 | Shield constructs construction sewage and divides sediment ware |
-
1999
- 1999-12-21 JP JP36323399A patent/JP2001170655A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011524802A (en) * | 2008-12-24 | 2011-09-08 | クリスタル・ラグーンズ・コーポレーション・エルエルシー | Efficient filtration process of water in aquarium for recreational facilities and decorative use, where filtration is performed on a small amount of water and not on the total volume of aquarium water process |
| CN113262560A (en) * | 2021-04-27 | 2021-08-17 | 中铁工程服务有限公司 | Shield constructs construction sewage and divides sediment ware |
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