JP4543874B2 - Sludge treatment equipment - Google Patents

Sludge treatment equipment Download PDF

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JP4543874B2
JP4543874B2 JP2004304117A JP2004304117A JP4543874B2 JP 4543874 B2 JP4543874 B2 JP 4543874B2 JP 2004304117 A JP2004304117 A JP 2004304117A JP 2004304117 A JP2004304117 A JP 2004304117A JP 4543874 B2 JP4543874 B2 JP 4543874B2
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tank
ultrasonic
treatment tank
main body
sludge
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JP2006116374A (en
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真一郎 淵上
隆司 榊原
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Panasonic Corp
Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

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Description

本発明は、排水処理により発生する排液中の有機物の大幅な減量を可能とする汚泥処理装置に関する。   The present invention relates to a sludge treatment apparatus that enables a significant reduction in the amount of organic matter in waste liquid generated by waste water treatment.

従来の汚泥減量化技術には、生物・化学的汚泥処理と、物理的汚泥処理があり、生物・化学的汚泥処理は化学薬品等を使用して短時間(8時間程度)で処理するもので、大容量の汚泥処理に向いており、物理的汚泥処理は超音波等を利用して長時間(24時間程度)を掛けて処理するもので、小容量の汚泥処理に向いている(特許文献1、特許文献2参照)。そして例えば特許文献2の処理技術では、有機性汚水を好気性生物処理槽で処理し、沈殿槽で固液分離して処理水と汚泥とを得る。この汚泥を返送汚泥として好気性生物処理槽に循環するとともに、一部を余剰汚泥として貯留槽に導入する。貯留槽ではその汚泥を超音波発振子から発振される超音波を用いて可溶化処理を行い、可溶化汚泥として好気性生物処理槽に返して生物分解を行うことにより、汚泥を減容する方法が開示されている。   Conventional sludge reduction technologies include biological / chemical sludge treatment and physical sludge treatment. Biological / chemical sludge treatment is performed in a short time (about 8 hours) using chemicals. It is suitable for large-capacity sludge treatment, and physical sludge treatment is performed over a long period of time (about 24 hours) using ultrasonic waves, etc., and is suitable for small-capacity sludge treatment (Patent Literature). 1, see Patent Document 2). For example, in the treatment technique disclosed in Patent Document 2, organic sewage is treated in an aerobic biological treatment tank, and solid-liquid separation is performed in a sedimentation tank to obtain treated water and sludge. This sludge is circulated to the aerobic biological treatment tank as return sludge and a part is introduced into the storage tank as surplus sludge. In the storage tank, the sludge is solubilized using ultrasonic waves oscillated from an ultrasonic oscillator, and returned to the aerobic biological treatment tank as solubilized sludge for biodegradation. Is disclosed.

また、特に紫外線照射による汚泥の可溶化率を高めるために、紫外線照射による汚泥の可溶化処理に加えて超音波照射処理を併用する処理装置が提案されている(特許文献3参照)。
特開平5−345192号公報 特開平11−128975号公報 特開2004−113918号公報
Moreover, in order to raise the sludge solubilization rate especially by ultraviolet irradiation, in addition to the sludge solubilization processing by ultraviolet irradiation, a processing apparatus that uses ultrasonic irradiation processing in combination has been proposed (see Patent Document 3).
JP-A-5-345192 Japanese Patent Laid-Open No. 11-128975 JP 2004-113918 A

しかし、上記従来の処理装置は、超音波振動子の長寿命化、低消費電力でコンパクトな装置を図ることは提案されていない。また、超音波振動子を駆動するための超音波発振器は入力電力の約50%を熱としてヒートシンクにより大気中へ放出しており、このような超音波発振器の排熱を利用する装置は提案されていない。   However, the conventional processing apparatus described above has not been proposed to achieve a compact apparatus with a long life of the ultrasonic transducer and low power consumption. In addition, an ultrasonic oscillator for driving an ultrasonic transducer emits about 50% of the input power as heat to the atmosphere by a heat sink, and a device utilizing the exhaust heat of such an ultrasonic oscillator has been proposed. Not.

そこで、本発明は汚泥の可溶化率を高めるために超音波振動子および超音波発振器からの排熱を利用して汚泥を加温しつつ超音波処理をすることで、低消費電力でコンパクトな装置を実現することを目的とする。   Therefore, the present invention uses a waste heat from the ultrasonic vibrator and the ultrasonic oscillator to increase the solubilization rate of the sludge and performs ultrasonic treatment while heating the sludge, thereby reducing power consumption and compactness. The object is to realize the device.

また、超音波処理装置に導く前の排水から、特にトイレットペーパなどのセルロース系の繊維質などの異物を分離することで、処理効率がよく、超音波振動子の長寿命化を図ることのできる装置を提供することを目的とする。   In addition, by separating foreign matter such as cellulosic fibers such as toilet paper from waste water before being guided to the ultrasonic treatment apparatus, it is possible to improve treatment efficiency and extend the life of the ultrasonic vibrator. An object is to provide an apparatus.

請求項記載の本発明の汚泥処理装置は、超音波処理槽の前段に下部から排液を導入し、導入した前記排液の一部を上部から導出するとともに他の前記排液を下部から導出する乱流沈殿槽と、前記乱流沈殿槽の上部からの前記排液を導入し、導入した前記排液を旋回させ、上部から前記排液を導出し前記超音波処理槽に導入する旋回流分離槽とを備え、前記超音波処理槽と、前記乱流沈殿槽と、前記旋回流分離槽と、超音波発振器とを、本体ケース内に配設したことを特徴とする。 Sludge treatment apparatus of the present invention according to claim 1, introducing the effluent from the bottom in front of the ultrasonic processing tank, the lower the other of the drain with deriving a part of the introduced the drainage from the top A turbulent sedimentation tank to be derived, and a swirl that introduces the drainage liquid from the upper part of the turbulent sedimentation tank, swirls the drained liquid introduced, and derives the drainage liquid from the upper part and introduces it into the ultrasonic treatment tank A flow separation tank, and the ultrasonic treatment tank, the turbulent precipitation tank, the swirl flow separation tank, and an ultrasonic oscillator are arranged in a main body case.

請求項記載の本発明は、請求項に記載の汚泥処理装置において、前記旋回流分離槽および前記乱流沈殿槽を前記超音波処理槽よりも下方に配置し、前記超音波発振器を前記超音波処理槽よりも上方に配置したことを特徴とする。 According to a second aspect of the invention, the sludge treatment apparatus according to claim 1, wherein the swirling flow separation tank and the turbulence sedimentation tank is disposed below said ultrasonic treating tank, the said ultrasonic generator It is arranged above the ultrasonic treatment tank.

請求項記載の本発明は、請求項に記載の汚泥処理装置において、前記本体ケース内で前記乱流沈殿槽および前記旋回流分離槽の設置スペースと前記超音波処理槽および前記超音波発振器の設置スペースとを仕切り板で区切ったことを特徴とする。 According to a third aspect of the present invention, in the sludge treatment apparatus according to the second aspect , an installation space for the turbulent sedimentation tank and the swirl flow separation tank, the ultrasonic treatment tank, and the ultrasonic oscillator in the main body case The installation space is separated by a partition plate.

請求項記載の本発明は、請求項1から3のいずれかに記載の汚泥処理装置において、前記本体ケースに断熱材を貼付したことを特徴とする。 According to a fourth aspect of the present invention, in the sludge treatment apparatus according to any one of the first to third aspects, a heat insulating material is attached to the main body case.

請求項記載の本発明は、請求項1から4のいずれかに記載の汚泥処理装置において、前記本体ケース外面を太陽熱を吸収する濃色としたことを特徴とする。 According to a fifth aspect of the present invention, in the sludge treatment apparatus according to any one of the first to fourth aspects, the outer surface of the main body case has a dark color that absorbs solar heat.

請求項記載の本発明は、請求項に記載の汚泥処理装置において、前記超音波処理槽を、堰によって第1の処理槽と第2の処理槽に区分し、前記第1の処理槽に前記排水の流入口と超音波振動子を備え、前記第2の処理槽に前記排水の流出口を備え、前記第2の処理槽を前記第1の処理槽の両側部にそれぞれ設け、前記超音波振動子を前記堰の第1処理槽側の面に配置したことを特徴とする。 According to a sixth aspect of the invention, the sludge treatment apparatus according to claim 1, wherein the ultrasonic processing tank, divided into the first treatment tank and a second treatment tank by weir, said first treatment tank The waste water inlet and the ultrasonic vibrator, the second treatment tank is provided with the waste water outlet, the second treatment tank is provided on both sides of the first treatment tank, An ultrasonic transducer is disposed on the surface of the weir on the first treatment tank side.

請求項記載の本発明は、請求項に記載の汚泥処理装置において、前記超音波処理槽の上部に蓋体を設け、前記蓋体を断熱材で覆ったことを特徴とする。 The present invention of claim 7, wherein, in the sludge treatment apparatus according to claim 1, wherein providing a lid on top of the sonication bath, characterized in that the lid is covered with a heat insulating material.

請求項8記載の本発明は、請求項に記載の汚泥処理装置において、第1の処理槽の堰を除く他の壁面の外壁面に熱交換手段を設けたことを特徴とする。
The present invention according to claim 8 is the sludge treatment apparatus according to claim 6 , wherein heat exchange means is provided on the outer wall surface of the other wall surface except the weir of the first treatment tank.

請求項記載の本発明は、請求項2または3に記載の汚泥処理装置において、前記旋回流分離槽および前記乱流沈殿槽を前記超音波処理槽よりも下方に配置し、前記本体ケース内で前記乱流沈殿槽および前記旋回流分離槽の設置スペースと前記超音波処理槽および前記超音波発振器の設置スペースとを仕切り板で区切り、前記超音波処理槽および前記超音波発振器の設置スペース内に空気の撹拌手段を設けたことを特徴とする。 The present invention according to claim 9 is the sludge treatment apparatus according to claim 2 or 3 , wherein the swirl flow separation tank and the turbulent flow settling tank are disposed below the ultrasonic treatment tank, The installation space of the turbulent sedimentation tank and the swirl flow separation tank and the installation space of the ultrasonic treatment tank and the ultrasonic oscillator are separated by a partition plate, and within the installation space of the ultrasonic treatment tank and the ultrasonic oscillator An air agitating means is provided.

請求項10記載の本発明は、請求項1から3のいずれかに記載の汚泥処理装置において、前記本体ケースに本体ケースと本体ケース設置面との空間確保手段を設けたことを特徴とする。 According to a tenth aspect of the present invention, in the sludge treatment apparatus according to any one of the first to third aspects, the main body case is provided with means for securing a space between the main body case and the main body case installation surface.

本発明の汚泥処理装置によれば、超音波発振器の排熱を利用することにより処理効率がよく超音波振動子の長寿命化を図ることができる。   According to the sludge treatment apparatus of the present invention, by using the exhaust heat of the ultrasonic oscillator, the treatment efficiency is good and the life of the ultrasonic vibrator can be extended.

本発明の第の実施の形態による汚泥処理装置は、超音波処理槽の前段に下部から排液を導入し、導入した排液の一部を上部から導出するとともに他の排液を下部から導出する乱流沈殿槽と、乱流沈殿槽の上部からの排液を導入し、導入した排液を旋回させ、上部から排液を導出し超音波処理槽に導入する旋回流分離槽とを備え、超音波処理槽と、乱流沈殿槽と、旋回流分離槽と、超音波発振器とを、本体ケース内に配設したものである。本実施の形態によれば、超音波処理槽に導入する排液は、乱流沈殿槽と旋回流分離槽によって、あらかじめ繊維物や沈殿物を分離除去しているので、超音波処理槽における処理能力を高めることができるとともに、超音波振動子の長寿命化を図ることができる。また、超音波発振器からの排熱が本体ケース内に滞留し、超音波処理槽を加温するために超音波処理による可溶化率を高めることができる。 The sludge treatment apparatus according to the first embodiment of the present invention introduces drainage liquid from the lower part to the front stage of the ultrasonic treatment tank, and leads out part of the introduced drainage liquid from the upper part and other waste liquids from the lower part. A turbulent sedimentation tank to be derived, and a swirl flow separation tank to introduce the drainage liquid from the upper part of the turbulent sedimentation tank, swirl the introduced drainage liquid, derive the drainage liquid from the upper part, and introduce it into the ultrasonic treatment tank. An ultrasonic treatment tank, a turbulent sedimentation tank, a swirl flow separation tank, and an ultrasonic oscillator are disposed in the main body case. According to the present embodiment, the waste liquid introduced into the ultrasonic treatment tank is separated and removed in advance by the turbulent precipitation tank and the swirl flow separation tank, so that the treatment in the ultrasonic treatment tank is performed. The ability can be increased and the life of the ultrasonic transducer can be extended. Further, the exhaust heat from the ultrasonic oscillator stays in the main body case, and the solubilization rate by the ultrasonic treatment can be increased because the ultrasonic treatment tank is heated.

本発明の第の実施の形態は、第の実施の形態による汚泥処理装置において、旋回流分離槽および乱流沈殿槽を超音波処理槽よりも下方に配置し、超音波発振器を超音波処理槽よりも上方に配置したものである。本実施の形態によれば、超音波発振器からの排熱は本体ケースの上側から蓄積されるために、旋回流分離槽よりも上側に配置されている超音波処理槽に加温することができ、超音波処理槽の温度を効率よく上げることが出来る According to a second embodiment of the present invention, in the sludge treatment apparatus according to the first embodiment, the swirl flow separation tank and the turbulent flow settling tank are disposed below the ultrasonic treatment tank, and the ultrasonic oscillator is ultrasonic. It is arranged above the processing tank. According to the present embodiment, since the exhaust heat from the ultrasonic oscillator is accumulated from the upper side of the main body case, it can be heated in the ultrasonic treatment tank disposed above the swirl flow separation tank. Can raise the temperature of sonication tank efficiently

本発明の第の実施の形態は、第の実施の形態による汚泥処理装置において、旋回流分離槽を超音波処理槽よりも下方に配置し、超音波発振器を超音波処理槽よりも上方に配置し、本体ケース内で乱流沈殿槽および旋回流分離槽の設置スペースと超音波処理槽および超音波発振器の設置スペースとを仕切り板で区切ったものである。本実施の形態によれば、超音波発振器からの排熱を超音波処理槽および超音波発振器の設置スペースへ選択的に蓄積することができ、仕切り板下方への熱損失を低減することで、超音波処理槽の温度を効率よく上げることができる。 According to a third embodiment of the present invention, in the sludge treatment apparatus according to the second embodiment, the swirl flow separation tank is disposed below the ultrasonic treatment tank, and the ultrasonic oscillator is disposed above the ultrasonic treatment tank. In the main body case, the installation space for the turbulent sedimentation tank and the swirling flow separation tank and the installation space for the ultrasonic treatment tank and the ultrasonic oscillator are separated by a partition plate. According to the present embodiment, waste heat from the ultrasonic oscillator can be selectively accumulated in the installation space of the ultrasonic treatment tank and the ultrasonic oscillator, and by reducing heat loss below the partition plate, The temperature of the ultrasonic treatment tank can be raised efficiently.

本発明の第の実施の形態は、第1から第3のいずれかの実施の形態による汚泥処理装置において、本体ケースに断熱材を貼付したものである。本実施の形態によれば、本体ケースに断熱材が貼付されているために、本体ケースを通じた熱伝導での本体ケース外部への熱損失を少なくし、超音波発振器からの排熱が本体ケース内に蓄積し、超音波処理槽の温度を効率よく上げることができる。 The fourth embodiment of the present invention is a sludge treatment apparatus according to any one of the first to third embodiments, in which a heat insulating material is attached to a main body case. According to the present embodiment, since the heat insulating material is attached to the main body case, heat loss to the outside of the main body case due to heat conduction through the main body case is reduced, and exhaust heat from the ultrasonic oscillator is reduced to the main body case. It accumulates inside and can raise the temperature of the ultrasonic treatment tank efficiently.

本発明の第の実施の形態は、第1から第4のいずれかの実施の形態による汚泥処理装置において、本体ケース外面を太陽熱を吸収する濃色としたものである。本実施の形態によれば、本体ケース外面が太陽熱を吸収する濃色であるために、本体ケースが太陽熱のよくあたる場所に設置されている場合は、太陽熱を効率よく吸収し、太陽熱によって本体ケース内の温度を高めることで超音波処理槽の温度を上げることができる。 In the sludge treatment apparatus according to any one of the first to fourth embodiments, the fifth embodiment of the present invention is such that the outer surface of the main body case has a dark color that absorbs solar heat. According to the present embodiment, since the outer surface of the main body case is a dark color that absorbs solar heat, when the main body case is installed in a location that is well exposed to solar heat, the main body case is efficiently absorbed by solar heat. The temperature of the ultrasonic treatment tank can be raised by raising the temperature inside.

本発明の第の実施の形態は、第の実施の形態による汚泥処理装置において、超音波処理槽を、堰によって第1の処理槽と第2の処理槽に区分し、第1の処理槽に排水の流入口と超音波振動子を備え、第2の処理槽に排水の流出口を備え、第2の処理槽を第1の処理槽の両側部にそれぞれ設け、超音波振動子を堰の第1処理槽側の面に配置したものである。本実施の形態によれば、超音波振動子からの発熱を堰を通じて第2の処理槽内の空気へ伝えることができ、空気による断熱効果によって熱損失を低減し、第2の処理槽内の温度を効率よく上げることができる。 According to a sixth embodiment of the present invention, in the sludge treatment apparatus according to the first embodiment, the ultrasonic treatment tank is divided into a first treatment tank and a second treatment tank by a weir, and the first treatment is performed. The tank is provided with a drainage inlet and an ultrasonic vibrator, the second treatment tank is provided with a drainage outlet, the second treatment tank is provided on both sides of the first treatment tank, and the ultrasonic vibrator is provided. It is arranged on the surface of the weir on the first treatment tank side. According to the present embodiment, the heat generated from the ultrasonic transducer can be transmitted to the air in the second treatment tank through the weir, and heat loss is reduced by the heat insulation effect by the air. The temperature can be raised efficiently.

本発明の第の実施の形態は、第の実施の形態による汚泥処理装置において、超音波処理槽の上部に蓋体を設け、前記蓋体を断熱材で覆ったものである。本実施の形態によれば、超音波処理槽の上部に蓋体を設けることで、超音波処理槽内の空気と排液との温度差を少なくし、さらに蓋体を断熱材で覆うことで処理槽内の空気から蓋体を通じた熱損失も低減することで、超音波処理槽の温度を効率よく上げることができる。 According to a seventh embodiment of the present invention, in the sludge treatment apparatus according to the first embodiment, a lid is provided on the upper part of the ultrasonic treatment tank, and the lid is covered with a heat insulating material. According to the present embodiment, by providing a lid at the top of the sonication tank, the temperature difference between the air in the sonication tank and the drainage is reduced, and the lid is covered with a heat insulating material. By reducing heat loss from the air in the treatment tank through the lid, the temperature of the ultrasonic treatment tank can be increased efficiently.

本発明の第8の実施の形態は、第の実施の形態による汚泥処理装置において、第1の処理槽の堰を除く他の壁面の外壁面に熱交換手段を設けたものである。本実施の形態によれば、超音波処理槽の温度が低い場合処理槽外部の超音波発振器の排熱によって加温された暖かい空気と第1の処理槽との熱交換を効率よく行うことができ、第1の処理槽内の温度を効率よく上げることができる。 In an eighth embodiment of the present invention, in the sludge treatment apparatus according to the sixth embodiment, heat exchange means is provided on the outer wall surface of the other wall surface except the weir of the first treatment tank. According to the present embodiment, when the temperature of the ultrasonic treatment tank is low, heat exchange between the warm air heated by the exhaust heat of the ultrasonic oscillator outside the treatment tank and the first treatment tank can be performed efficiently. The temperature in the first treatment tank can be increased efficiently.

本発明の第の実施の形態は、第2または第3の実施の形態による汚泥処理装置において、旋回流分離槽および乱流沈殿槽を超音波処理槽よりも下方に配置し、本体ケース内で乱流沈殿槽および旋回流分離槽の設置スペースと超音波処理槽および超音波発振器の設置スペースとを仕切り板で区切り、超音波処理槽および超音波発振器の設置スペース内に空気の撹拌手段を設けたものである。本実施の形態によれば、超音波発振器の排熱によって加温された暖かい空気を撹拌手段によって撹拌することで超音波処理槽と接触する機会を増やし、空気の熱を超音波処理槽内の排液へ効率よく伝えることで、超音波処理槽の温度を効率よく上げることができる。 The ninth embodiment of the present invention is the sludge treatment apparatus according to the second or third embodiment, wherein the swirl flow separation tank and the turbulent precipitation tank are disposed below the ultrasonic treatment tank, The partition space separates the installation space for the turbulent sedimentation tank and swirl flow separation tank from the installation space for the ultrasonic treatment tank and the ultrasonic oscillator, and provides air agitation means in the installation space for the ultrasonic treatment tank and the ultrasonic oscillator. It is provided. According to the present embodiment, the warm air heated by the exhaust heat of the ultrasonic oscillator is agitated by the agitating means to increase the chance of contact with the ultrasonic treatment tank, and the heat of the air is increased in the ultrasonic treatment tank. By efficiently transmitting to the drainage, the temperature of the ultrasonic treatment tank can be increased efficiently.

本発明の第10の実施の形態は、第1から第3のいずれかの実施の形態による汚泥処理装置において、本体ケースに本体ケースと本体ケース設置面との空間確保手段を設けたものである。本実施の形態によれば、本体ケースと本体ケース設置面との間に空間を確保することで、本体ケースを通じた熱損失を低減することができ、本体ケース内の空気温の低下を防止することができる。 In the sludge treatment apparatus according to any one of the first to third embodiments, a tenth embodiment of the present invention is provided with space securing means for the main body case and the main body case installation surface in the main body case. . According to the present embodiment, by securing a space between the main body case and the main body case installation surface, heat loss through the main body case can be reduced, and a decrease in air temperature in the main body case is prevented. be able to.

以下、本発明による実施例の汚泥処理装置について、図面を参照して説明する。図1は本発明の一実施例による汚泥処理装置を示す構成図である。   Hereinafter, the sludge treatment apparatus of the Example by this invention is demonstrated with reference to drawings. FIG. 1 is a block diagram showing a sludge treatment apparatus according to an embodiment of the present invention.

工場や下水処理場などから排出される排液や汚泥は、図示しない排液貯留槽に貯留されている。この排液や汚泥に対して何らかの処理を施して再利用や減容を行う場合には、排液に含まれる異物を除去することが重要である。   Drainage and sludge discharged from factories and sewage treatment plants are stored in a drainage storage tank (not shown). When performing some kind of treatment on the drainage or sludge to reuse or reduce the volume, it is important to remove foreign substances contained in the drainage.

本実施例による汚泥処理装置は、本体ケース1内に、乱流沈殿槽20と旋回流分離槽30と超音波処理槽50と制御盤2とを備えている。ここで乱流沈殿槽20と旋回流分離槽30とによって異物分離装置が構成される。   The sludge treatment apparatus according to this embodiment includes a turbulent sedimentation tank 20, a swirl flow separation tank 30, an ultrasonic treatment tank 50, and a control panel 2 in the main body case 1. Here, the turbulent sedimentation tank 20 and the swirl flow separation tank 30 constitute a foreign matter separation device.

乱流沈殿槽20は、円筒状のケーシング21を持ち、複数の仕切板22で複数の空間に分けられている。仕切板22には丸い開口が設けてあり、開口の直径は上段より下段の方が大きくなっている。このため、上段から下段へ落下する異物は下段の開口を通過することができ、異物は配管Cから乱流沈殿槽20外に排出される。また、仕切板22には丸い開口に向けて下方へ向かう傾斜面を設けていることが好ましい。この傾斜面によって、各仕切板22に沈殿した異物は、開口部へ向けて滑り落ち、乱流沈殿槽20より排出される。一方、仕切板22で区切られたそれぞれの空間は、上段より下段の方が小さくなっており処理液を排出する配管Bは、最上部空間の上面付近に設けている。排液は、配管Aより最下段の空間へ流入し、被処理排液と処理に不要な排液に分離され、処理に不要な排液は、配管Cより排液貯留槽へ還流される。次に被処理排液は最下段の空間の上方に位置する第2の空間へ流入し、発生した乱流によって異物の一部が除去される。第2の空間を通過した被処理液は更に上方に位置する第3の空間(最上部空間)へと流入する。第3の空間は、他の二つの空間より大きな容積とすることで、乱流が穏やかとなっており、乱流と重力沈殿の両方の効果で異物が除去される。第3の空間を通過した被処理液は配管Bより排出される。   The turbulent sedimentation tank 20 has a cylindrical casing 21 and is divided into a plurality of spaces by a plurality of partition plates 22. The partition plate 22 is provided with a round opening, and the diameter of the opening is larger in the lower stage than in the upper stage. For this reason, the foreign substance falling from the upper stage to the lower stage can pass through the lower stage opening, and the foreign substance is discharged from the pipe C to the outside of the turbulent precipitation tank 20. Moreover, it is preferable that the partition plate 22 is provided with an inclined surface directed downward toward the round opening. Due to this inclined surface, the foreign matter settled on each partition plate 22 slides down toward the opening and is discharged from the turbulent sedimentation tank 20. On the other hand, each space divided by the partition plate 22 is smaller in the lower stage than in the upper stage, and the pipe B for discharging the processing liquid is provided near the upper surface of the uppermost space. The drainage liquid flows into the lowermost space from the pipe A and is separated into the waste liquid to be treated and the waste liquid unnecessary for the treatment, and the waste liquid unnecessary for the treatment is returned to the waste liquid storage tank through the pipe C. Next, the waste liquid to be treated flows into the second space located above the lowermost space, and part of the foreign matter is removed by the generated turbulent flow. The liquid to be processed that has passed through the second space flows into a third space (uppermost space) located further above. The third space has a larger volume than the other two spaces, so that the turbulent flow is gentle, and foreign matters are removed by the effects of both turbulent flow and gravity precipitation. The liquid to be processed that has passed through the third space is discharged from the pipe B.

旋回流分離槽30は、円筒状の胴部分31とおわん状の底部32とで構成されている。旋回流分離槽30の胴部分31には、被処理液が旋回流分離槽30に流入する配管Bと、処理液が流出する配管Dとを旋回流分離槽30内に突き出して設けている。排液が流入する配管Dは、配管Bより下方側で、底部32よりも上方側に配置されている。配管Bの流出口33はエルボが形成され、旋回流分離槽30内で胴部分31の接線方向へ排液は流出し、旋回流を発生させる構成となっている。配管Dの導入口34は旋回流分離槽30内の水面より下であり、導入口34は上側に開口しており、旋回流分離槽30の水面に浮上した浮遊性の異物、底部32に沈降した沈降性の異物、及び旋回流による慣性力で旋回流分離槽30の外周へ分離された異物を導入することなく、処理液の排出が可能となっている。また、底部32に沈降した沈降性の異物は、バルブ35を開放することで排液貯留槽へ返送することが可能となっている。ここで、旋回流分離槽30の上部には、空気抜きバルブを設け、旋回流分離槽30内へ溜まった空気を外部へ排出するように構成することが好ましい。空気抜きバルブを設けることで、旋回流分離槽30に余分な圧力がかからず、胴部分31の強度を低く抑えることができ、旋回流分離槽30のコンパクト化と低コスト化を実現できる。   The swirl flow separation tank 30 includes a cylindrical body portion 31 and a bowl-shaped bottom portion 32. A pipe B through which the liquid to be treated flows into the swirl flow separation tank 30 and a pipe D through which the process liquid flows out are provided in the trunk portion 31 of the swirl flow separation tank 30 so as to protrude into the swirl flow separation tank 30. The pipe D into which the drainage flows is disposed below the pipe B and above the bottom 32. An elbow is formed at the outlet 33 of the pipe B, and the drainage liquid flows out in the tangential direction of the body portion 31 in the swirling flow separation tank 30 to generate a swirling flow. The introduction port 34 of the pipe D is below the water surface in the swirl flow separation tank 30, and the introduction port 34 is open on the upper side, and floats on the water surface of the swirl flow separation tank 30. The treatment liquid can be discharged without introducing the settled foreign matter and the foreign matter separated into the outer periphery of the swirling flow separation tank 30 by the inertial force due to the swirling flow. Moreover, the sedimentary foreign matter settled on the bottom portion 32 can be returned to the drainage storage tank by opening the valve 35. Here, it is preferable to provide an air vent valve on the upper part of the swirl flow separation tank 30 so that the air accumulated in the swirl flow separation tank 30 is discharged to the outside. By providing the air vent valve, no extra pressure is applied to the swirling flow separation tank 30, the strength of the body portion 31 can be kept low, and the swirling flow separation tank 30 can be made compact and low in cost.

配管Dには、電動バルブ41、流量計42、及び三方弁(切換手段)43が順に設けられている。三方弁43は、電動バルブ41及び流量計42よりも下流側に配置し、三方弁43には洗浄水導入管44を設けている。三方弁43は、使用状態では旋回流分離槽30と超音波処理槽50とを連通しているが、洗浄時には流路を切り換えて洗浄水を導入することで、電動バルブ41や流量計42の洗浄を行うことができる。   The pipe D is provided with an electric valve 41, a flow meter 42, and a three-way valve (switching means) 43 in this order. The three-way valve 43 is disposed on the downstream side of the electric valve 41 and the flow meter 42, and the three-way valve 43 is provided with a washing water introduction pipe 44. The three-way valve 43 communicates with the swirling flow separation tank 30 and the ultrasonic treatment tank 50 in the use state, but at the time of cleaning, the flow path is switched and the cleaning water is introduced so that the electric valve 41 and the flow meter 42 are connected. Cleaning can be performed.

超音波処理槽50は、その内部に第1の処理槽51と第2の処理槽52A、52Bとを備え、第1の処理槽51と第2の処理槽52A、52Bとは、それぞれ堰53A、53Bによって区画され、第1の処理槽51内の排液は、この堰53A、53Bを越えて第2の処理槽52A、52Bに導かれる構成となっている。堰53A、53Bは、第1の処理槽51又は第2の処理槽52A、52Bの内壁間に、内壁全幅に設けることが好ましい。   The ultrasonic treatment tank 50 includes therein a first treatment tank 51 and second treatment tanks 52A and 52B, and the first treatment tank 51 and the second treatment tanks 52A and 52B are respectively a weir 53A. , 53B, and the drainage liquid in the first processing tank 51 is guided to the second processing tanks 52A and 52B through the weirs 53A and 53B. The weirs 53A and 53B are preferably provided across the entire inner wall width between the inner walls of the first processing tank 51 or the second processing tanks 52A and 52B.

ここで、一方の第2の処理槽52Aにおける堰53Aの上端面と、他方の第2の処理槽52Bにおける堰53Bの上端面との高さを異ならせている。このように、一方の第2の処理槽52Aにおける堰53Aの上端面と、他方の第2の処理槽52Bにおける堰53Bの上端面との高さを異ならせることで、第2の処理槽52Aが汚泥などによって詰まった場合であっても他方の第2の処理槽52Bに排水することができるので、排液の連続処理を確実に行うことができるとともに、オーバーフローを回避することができる。なお、一方の第2の処理槽52Aにおける堰53Aの上端面と、他方の第2の処理槽52Bにおける堰53Bの上端面との高さを同じ高さとしてもよい。このように同じ高さとすることで第1の処理槽から流出する排液を薄くのばすことができる。   Here, the height of the upper end surface of the weir 53A in one second processing tank 52A and the upper end surface of the weir 53B in the other second processing tank 52B are different. In this way, the height of the upper end surface of the weir 53A in the one second processing tank 52A and the upper end surface of the weir 53B in the other second processing tank 52B are made different from each other, whereby the second processing tank 52A. Even when the water is clogged with sludge or the like, it can be drained to the other second processing tank 52B, so that continuous processing of the drainage can be performed reliably and overflow can be avoided. The upper end surface of the weir 53A in one second processing tank 52A and the upper end surface of the weir 53B in the other second processing tank 52B may be the same height. In this way, the drainage flowing out from the first treatment tank can be thinned by setting the same height.

第1の処理槽51の、堰53A側の面には、超音波振動子14がその放射面が鉛直方向と平行に向くように取り付けられ、この超音波振動子14の取り付けられた面と対向する面(反射壁)に、排液の流入口54が設けられている。この流入口54は、配管Dに接続されている。一方第2の処理槽52A、52Bの下部には、排液を排出する流出口55が設けられている。この流出口55は、配管Fに接続されている。また第1の処理槽51の底面には、第1の処理槽51の底面に沈殿した排液を排出するドレン口56を設けている。排液は、超音波振動子14の取り付け面の上方の堰53Aによって、超音波振動子14の上方から、堰53Aによって一定の水位を保って溢れさせる。   The ultrasonic transducer 14 is attached to the surface of the first treatment tank 51 on the side of the weir 53A so that the radiation surface thereof is parallel to the vertical direction, and faces the surface to which the ultrasonic transducer 14 is attached. A drainage inlet 54 is provided on the surface (reflection wall). The inflow port 54 is connected to the pipe D. On the other hand, an outlet 55 for discharging the drainage is provided below the second treatment tanks 52A and 52B. The outlet 55 is connected to the pipe F. Further, a drain port 56 is provided on the bottom surface of the first processing tank 51 to discharge the drained liquid that has settled on the bottom surface of the first processing tank 51. The drainage liquid overflows from above the ultrasonic transducer 14 while maintaining a constant water level by the weir 53A above the attachment surface of the ultrasonic transducer 14.

ここで、流入口54は、超音波振動子14の高さ方向に、下部から1/3以下の位置に設けるか、または、第1の処理槽51の底面から堰53Aまでの高さの1/3以下の位置に設ける。そしてこの流入口54は、第1の処理槽51内に波長λ以下の長さの突出部を形成して取り付けることが好ましい。なお、超音波の発振周波数をf[Hz]、水中の音速をa[m/S]とした時の超音波の波長λ[m]は、λ=a/f[m]である。   Here, the inflow port 54 is provided at a position of 1/3 or less from the lower side in the height direction of the ultrasonic transducer 14, or 1 in height from the bottom surface of the first treatment tank 51 to the weir 53 </ b> A. / 3 or less. The inflow port 54 is preferably attached by forming a protrusion having a length of λ or less in the first processing tank 51. The wavelength λ [m] of the ultrasonic wave is λ = a / f [m] when the ultrasonic oscillation frequency is f [Hz] and the sound velocity in water is a [m / S].

堰53Aよりも上方位置の第2の処理槽52A、52Bには、紫外線照射手段であるUV灯58を取り付けている。   UV lamps 58 as ultraviolet irradiation means are attached to the second treatment tanks 52A and 52B located above the weir 53A.

このUV灯58は直管型又はU字管型であり、その中心軸が堰53A、53Bと平行になるように取り付けられている。   The UV lamp 58 is a straight tube type or a U-shaped tube type, and is attached so that the central axis thereof is parallel to the weirs 53A and 53B.

UV灯58を第2の処理槽52A、52Bに設けることで、排液は超音波照射が行われた後にUV灯58によって照射される。また排液へのUV照射は、堰53A、53Bを流下する際と、流出口55へ滞留した際に行われる。   By providing the UV lamp 58 in the second treatment tanks 52A and 52B, the waste liquid is irradiated by the UV lamp 58 after being irradiated with ultrasonic waves. Further, the UV irradiation to the drainage is performed when flowing down the weirs 53 </ b> A and 53 </ b> B and when staying at the outlet 55.

超音波処理槽50の上部には、蓋体60を設けている。この蓋体60は、第1の処理槽51と第2の処理槽52A、52Bとを覆うように設けられ、上部より配管Gによって洗浄水が供給され、下部より洗浄水を噴出するように構成されている。蓋体60には、複数の箱体61が形成され、これらの箱体61には複数の洗浄水噴出孔62を、箱体61の下面だけでなく側壁にも多数設けている。本実施例によれば、複数の箱体61内に洗浄水を導き、この箱体61内の洗浄水を噴出させることで、水流の均一化を図れ、超音波処理槽50内全体を確実に洗浄することができる。   A lid 60 is provided on the upper part of the ultrasonic treatment tank 50. The lid 60 is provided so as to cover the first processing tank 51 and the second processing tanks 52A and 52B, and is configured such that the cleaning water is supplied from the upper part by the pipe G and the cleaning water is ejected from the lower part. Has been. A plurality of box bodies 61 are formed in the lid body 60, and a plurality of washing water ejection holes 62 are provided in these box bodies 61 on the side walls as well as the lower surface of the box body 61. According to the present embodiment, the cleaning water is guided into the plurality of box bodies 61 and the cleaning water in the box bodies 61 is ejected, so that the water flow can be made uniform and the entire ultrasonic treatment tank 50 can be surely provided. Can be washed.

本実施例における超音波処理槽50は、旋回流分離槽30の上方に配置し、超音波処理槽50のドレン配管Eの排出口36を旋回流分離槽30の上部中心に配置している。なお、ドレン口56と排出口36とが鉛直方向に一致するように超音波処理槽50と旋回流分離槽30とを配置する。ドレン配管Eにはバルブ57が設けられている。
なお本体ケース1内には、電動バルブ41などに電源を供給する制御盤2が最上部に設けられ、前記制御盤2には超音波振動子14に高周波電源を供給する超音波発振器15を備えている。また、本体ケース1は仕切板5によって、乱流沈殿槽22および旋回流分離槽30の設置スペースと超音波処理槽50および超音波発振器15の設置スペースとに区切られている。また、超音波処理槽50および超音波発振器15の設置スペースには空気の撹拌手段として撹拌送風機16が設置されており、超音波発振器15からの排熱によって暖められた空気を超音波処理槽50と接触させて、超音波処理槽50を加温することができる。また、本体ケース1の内面にはグラスウール等の断熱材を貼付し、本体ケース1の外面は太陽熱を吸収する濃色に塗装しておくことが望ましい。なお、太陽熱を吸収する濃色は塗料の色であっても、本体ケース1の素材の色であってもよい。また、太陽熱を吸収する濃色は、黒、濃紺、濃灰、濃茶、濃緑、濃紫等が好ましい。また、本体ケース1は密閉構造でもよいし、換気口のある構造でもよい。また、本体ケース1の底面には漏水センサー3を有することが好ましい。また、本体ケース1の下部には、複数のアジャスタ4が設けられている。このアジャスタ4は、本体ケース1と本体ケース1の設置面との空間確保手段として機能し、本体ケース1内の熱が本体ケース1の設置面へ伝わることによる熱損失を防止する。
The ultrasonic treatment tank 50 in the present embodiment is disposed above the swirl flow separation tank 30, and the discharge port 36 of the drain pipe E of the ultrasonic treatment tank 50 is disposed at the upper center of the swirl flow separation tank 30. The ultrasonic treatment tank 50 and the swirl flow separation tank 30 are arranged so that the drain port 56 and the discharge port 36 are aligned in the vertical direction. The drain pipe E is provided with a valve 57.
In the main body case 1, a control panel 2 for supplying power to the electric valve 41 and the like is provided at the top, and the control panel 2 includes an ultrasonic oscillator 15 for supplying high-frequency power to the ultrasonic vibrator 14. ing. The main body case 1 is divided by the partition plate 5 into an installation space for the turbulent sedimentation tank 22 and the swirl flow separation tank 30 and an installation space for the ultrasonic treatment tank 50 and the ultrasonic oscillator 15. Further, a stirring blower 16 is installed as an air stirring means in the installation space of the ultrasonic processing tank 50 and the ultrasonic oscillator 15, and the air heated by the exhaust heat from the ultrasonic oscillator 15 is converted into the ultrasonic processing tank 50. The ultrasonic treatment tank 50 can be heated by being brought into contact with. Moreover, it is desirable to apply a heat insulating material such as glass wool on the inner surface of the main body case 1 and to paint the outer surface of the main body case 1 in a dark color that absorbs solar heat. The dark color that absorbs solar heat may be the color of the paint or the color of the material of the main body case 1. The dark color that absorbs solar heat is preferably black, dark blue, dark ash, dark brown, dark green, dark purple, or the like. Moreover, the main body case 1 may have a sealed structure or a structure with a ventilation port. Further, it is preferable to have a water leakage sensor 3 on the bottom surface of the main body case 1. A plurality of adjusters 4 are provided at the bottom of the main body case 1. The adjuster 4 functions as a means for securing a space between the main body case 1 and the installation surface of the main body case 1, and prevents heat loss due to heat in the main body case 1 being transmitted to the installation surface of the main body case 1.

上記構成によって、排液貯留槽からの排液は、配管Aを通って乱流沈殿槽20に流入し、必要な量の被処理排液のみを配管Bによって排出している。乱流沈殿槽20によって除去された異物と処理に不要な排液は配管Cによって排液貯留槽へと還流する。一般に排液貯留槽は定期的に槽内の清掃が必要であり、清掃の際に排液貯留槽内の排液はバキュームによって排出される。したがって、配管Cによって異物を排液貯留槽へ返送した場合は、定期的なバキュームによって異物を一括して処理することができ、メンテナンスに必要なコストの低減を図ることが可能となる。   With the above configuration, the drainage liquid from the drainage storage tank flows into the turbulent sedimentation tank 20 through the pipe A, and only a necessary amount of the treated wastewater is discharged through the pipe B. The foreign matter removed by the turbulent sedimentation tank 20 and the waste liquid unnecessary for processing are returned to the drainage storage tank by the pipe C. In general, the drainage storage tank needs to be periodically cleaned, and the drainage in the drainage storage tank is discharged by vacuum during cleaning. Therefore, when the foreign matter is returned to the drainage storage tank by the pipe C, the foreign matter can be collectively processed by periodic vacuum, and the cost required for maintenance can be reduced.

乱流沈殿槽20へ流入した排液の一部は、乱流沈殿槽20によって異物を除去された後、配管Bを経由して旋回流分離槽30へ流入する。そして旋回流分離槽30にて、さらに異物を除去された排液は、配管Dを経由して旋回流分離槽30より流出する。乱流沈殿槽20と旋回流分離槽30によって除去された異物と処理に不要な排液は配管Cを経由して排液貯留槽へと還流する。ここで、乱流沈殿槽20では、旋回流分離槽30へ流入する流量を、排液貯留槽へ還流する流量に対して少なくすることで、旋回流分離槽30を小さくすることができる。また、乱流沈殿槽20と旋回流分離槽30を組み合わせることで、より良好な処理液を超音波処理槽50に供給することが可能となる。   Part of the drained liquid that has flowed into the turbulent sedimentation tank 20 flows into the swirling flow separation tank 30 via the pipe B after the foreign matter has been removed by the turbulent sedimentation tank 20. Then, the waste liquid from which the foreign matters are further removed in the swirling flow separation tank 30 flows out from the swirling flow separation tank 30 via the pipe D. The foreign matter removed by the turbulent sedimentation tank 20 and the swirl flow separation tank 30 and the waste liquid unnecessary for the treatment are returned to the waste liquid storage tank via the pipe C. Here, in the turbulent sedimentation tank 20, the swirl flow separation tank 30 can be made smaller by reducing the flow rate flowing into the swirl flow separation tank 30 with respect to the flow rate returning to the drainage storage tank. Further, by combining the turbulent precipitation tank 20 and the swirl flow separation tank 30, it becomes possible to supply a better processing liquid to the ultrasonic processing tank 50.

旋回流分離槽30より流出した排液は、配管Dを経由して流入口54から第1の処理槽51に導かれる。   The drainage liquid flowing out from the swirling flow separation tank 30 is guided to the first processing tank 51 from the inlet 54 via the pipe D.

本実施例によれば、超音波処理槽50に供給された排液に対して、超音波発振器15の排熱による加温によって排液の温度を高めつつ超音波照射が行われ、超音波によって排液に混入している汚泥のフロックが分散・破砕し、汚泥粒子にUV灯58による紫外線のあたる表面積が増加する。また排液は、堰53A、53Bによって薄く伸ばされ、堰53A、53Bを越えた後も堰53A、53Bの表面を伝って薄く伸ばされながら流下する。更に流下した排液は薄く伸ばされた状態で流出口55へ向けて流れる。UV灯58は、薄く伸ばされた排液に対して紫外線があたるように取り付けられているため、濁度が大きい排液であっても全量に対して均一に紫外線を照射することができる。このように排液は均一にUVを吸収するため、汚泥細胞が十分に破壊する。   According to the present embodiment, the waste liquid supplied to the ultrasonic treatment tank 50 is irradiated with ultrasonic waves while the temperature of the waste liquid is increased by heating due to the exhaust heat of the ultrasonic oscillator 15, and the ultrasonic waves are applied. The flocs of sludge mixed in the drainage liquid are dispersed and crushed, and the surface area of the sludge particles that is irradiated with ultraviolet rays by the UV lamp 58 is increased. Further, the drained liquid is stretched thinly by the weirs 53A and 53B, and flows down while being stretched thinly along the surfaces of the weirs 53A and 53B even after passing over the weirs 53A and 53B. Further, the drained liquid flows down toward the outlet 55 in a thinly stretched state. Since the UV lamp 58 is mounted so that the ultraviolet light is applied to the drained liquid that has been stretched thinly, even if the liquid is highly turbid, the entire amount can be irradiated with the ultraviolet light. Thus, since the drainage absorbs UV uniformly, the sludge cells are sufficiently destroyed.

そして、汚泥細胞が十分に破壊され、汚泥細胞の一部が可溶化された排液は、流出口55から配管Fを経由して処理排液として装置外へ導出される。   Then, the waste liquid in which the sludge cells are sufficiently destroyed and a part of the sludge cells is solubilized is led out of the apparatus from the outlet 55 via the pipe F as a processing waste liquid.

次に電動バルブ41の制御方法について説明する。   Next, a method for controlling the electric valve 41 will be described.

本装置の定格運転時の定格流量をQ[L/min]、超音波処理槽50の容積をV[L]とすると、定格運転時においては流量計42を利用して定格流量Q[L/min]となるように電動バルブ41を微調整する。このように定格流量で常時排液を流し続けると、排液が高濃度である場合や高粘性である場合は超音波照射による脱気エアーが超音波処理槽50の水面でスカムとなり、異臭や害虫の発生原因となる。また、超音波処理槽50内の液温が不均一となり、超音波処理槽内の音速が不均一となり、超音波処理の効率が悪くなる。そこで、一定の時間間隔で電動バルブ41を開放し、急な流量変動を起こすことにより、超音波処理槽50内を撹拌し、超音波処理槽50の水面の流れを変化させ、水面のスカムを押し流したり、超音波処理槽50内の温度を一定に保つようにする。ただ、この電動バルブ41を開放する時間間隔は最小でV÷Q[min]であることが望ましい。V÷Q[min]以下の時間間隔で電動バルブ41を開放すると、超音波処理に充分な時間が確保できず、超音波処理によって汚泥細胞を充分に破壊することができない。   Assuming that the rated flow rate during rated operation of this apparatus is Q [L / min] and the volume of the ultrasonic treatment tank 50 is V [L], the rated flow rate Q [L / L] is used using the flow meter 42 during rated operation. Min] is finely adjusted so that [min]. In this way, if the drainage liquid is continuously flowed at the rated flow rate, when the drainage liquid has a high concentration or is highly viscous, the deaerated air due to ultrasonic irradiation becomes scum on the water surface of the ultrasonic treatment tank 50, and there is a bad smell or Cause pests. Moreover, the liquid temperature in the ultrasonic processing tank 50 becomes non-uniform, the speed of sound in the ultrasonic processing tank becomes non-uniform, and the efficiency of ultrasonic processing deteriorates. Therefore, by opening the electric valve 41 at regular time intervals and causing a sudden flow fluctuation, the inside of the ultrasonic treatment tank 50 is agitated, the flow of the water surface of the ultrasonic treatment tank 50 is changed, and the scum on the water surface is changed. The temperature is pushed away or the temperature in the ultrasonic treatment tank 50 is kept constant. However, it is desirable that the time interval for opening the electric valve 41 is at least V ÷ Q [min]. If the electric valve 41 is opened at a time interval of V ÷ Q [min] or less, sufficient time for ultrasonic treatment cannot be secured, and sludge cells cannot be sufficiently destroyed by ultrasonic treatment.

表1は超音波処理槽50の保温手段や加温手段が超音波処理槽内の排液の温度に与える影響を示し、図2は超音波処理槽50内の排液の温度がSS可溶化率に与える影響を示したものである。   Table 1 shows the effect of the heat retaining means and heating means of the sonication tank 50 on the temperature of the effluent in the sonication tank, and FIG. 2 shows that the temperature of the effluent in the sonication tank 50 is SS solubilized. The effect on the rate is shown.

Figure 0004543874
Figure 0004543874

表1は流量2[L/min]、超音波周波数20[kHz]、超音波出力600[W]、超音波処理槽容積35[L]の測定条件において、超音波処理槽50の保温や加温がない場合、超音波処理槽50を断熱材で覆った場合、超音波処理槽50を断熱材で覆い、かつ超音波発振器の排熱を利用した場合、の超音波処理槽50内の排液の温度を示したものである。表1に示すように、超音波処理槽内の排液の温度を最高で51℃にできることが分かる。   Table 1 shows the heat treatment and heating of the ultrasonic treatment tank 50 under the measurement conditions of flow rate 2 [L / min], ultrasonic frequency 20 [kHz], ultrasonic output 600 [W], and ultrasonic treatment tank volume 35 [L]. When there is no temperature, when the ultrasonic treatment tank 50 is covered with a heat insulating material, when the ultrasonic treatment tank 50 is covered with a heat insulating material, and the exhaust heat of the ultrasonic oscillator is used, the waste in the ultrasonic treatment tank 50 is exhausted. It shows the temperature of the liquid. As shown in Table 1, it can be seen that the temperature of the waste liquid in the ultrasonic treatment tank can be set to 51 ° C. at the maximum.

また、表には示さないが、排液の濃度や粘度が高い場合は排液は冷めにくく、濃度や粘度が低い場合と比較すると排液の温度を高く維持することができた。   Although not shown in the table, when the concentration and viscosity of the effluent were high, the effluent was difficult to cool, and the temperature of the effluent could be maintained higher than when the concentration and viscosity were low.

図2は超音波処理槽容積0.1[L]、超音波出力600[W]、超音波周波数20[kHz]の測定条件において、超音波処理槽内の排液の温度が汚泥のSS可溶化率に与える影響を示したものである。同図に示すように、排液の温度が30℃、50℃、70℃と高くなるにつれて汚泥のSS可溶化率が高くなっており、液温が70℃ではSS可溶化率が50%を超えていることが分かる。   FIG. 2 shows that the temperature of the effluent in the sonication tank is sludge SS under the measurement conditions of ultrasonic treatment tank volume 0.1 [L], ultrasonic power 600 [W], and ultrasonic frequency 20 [kHz]. This shows the effect on the solubilization rate. As shown in the figure, the SS solubilization rate of sludge increases as the temperature of the effluent increases to 30 ° C, 50 ° C, and 70 ° C, and the SS solubilization rate is 50% at the liquid temperature of 70 ° C. You can see that it is over.

本発明による汚泥処理装置は、工場や、排水処理施設などから排出される様々な排液に対して適用することができる。   The sludge treatment apparatus according to the present invention can be applied to various effluents discharged from factories, wastewater treatment facilities, and the like.

本発明の一実施例による汚泥処理装置を示す構成図The block diagram which shows the sludge processing apparatus by one Example of this invention 本発明の一実施例による超音波処理槽内の排液の温度がSS可溶化率に与える影響を示すグラフThe graph which shows the influence which the temperature of the waste_water | drain in the ultrasonic processing tank by one Example of this invention has on SS solubilization rate

符号の説明Explanation of symbols

1 本体ケース
2 制御盤
3 漏水センサー
4 アジャスタ
5 本体ケース仕切板
14 超音波振動子
15 超音波発振器
16 撹拌送風機
20 乱流沈殿槽
21 ケーシング
22 仕切板
30 旋回流分離槽
31 胴部分
32 底部
33 流出口
34 導入口
35 バルブ
36 排出口
41 電動バルブ
42 流量計
43 三方弁
44 洗浄水導入管
50 超音波処理槽
51 第1の処理槽
52A 第2の処理槽
52B 第2の処理槽
53A 堰
53B 堰
54 流入口
55 流出口
56 ドレン口
57 バルブ
58 UV灯
60 蓋体
61 箱体
62 噴出孔
A 配管
B 配管
C 配管
D 配管
E 配管
F 配管
G 配管
DESCRIPTION OF SYMBOLS 1 Main body case 2 Control panel 3 Water leak sensor 4 Adjuster 5 Main body case partition plate 14 Ultrasonic vibrator 15 Ultrasonic oscillator 16 Stirrer blower 20 Turbulent sedimentation tank 21 Casing 22 Partition plate 30 Swirling flow separation tank 31 Trunk part 32 Bottom 33 Flow Exit 34 Introduction port 35 Valve 36 Discharge port 41 Electric valve 42 Flow meter 43 Three-way valve 44 Washing water introduction pipe 50 Ultrasonic treatment tank 51 First treatment tank 52A Second treatment tank 52B Second treatment tank 53A weir 53B weir 54 Inlet 55 Outlet 56 Drain Port 57 Valve 58 UV Lamp 60 Lid 61 Box 62 Blowout Hole A Piping B Piping C Piping D Piping E Piping F Piping G Piping

Claims (10)

超音波処理槽の前段に下部から排液を導入し、導入した前記排液の一部を上部から導出するとともに他の前記排液を下部から導出する乱流沈殿槽と、前記乱流沈殿槽の上部からの前記排液を導入し、導入した前記排液を旋回させ、上部から前記排液を導出し前記超音波処理槽に導入する旋回流分離槽とを備え、前記超音波処理槽と、前記乱流沈殿槽と、前記旋回流分離槽と、超音波発振器とを、本体ケース内に配設したことを特徴とする汚泥処理装置。 A turbulent sedimentation tank that introduces drainage liquid from the lower part to the previous stage of the ultrasonic treatment tank, derives a part of the introduced drainage liquid from the upper part and derives the other drainage liquid from the lower part, and the turbulent sedimentation tank A swirl flow separation tank that introduces the drainage liquid from above, swirls the drainage liquid that is introduced, derives the drainage liquid from the top, and introduces the drainage liquid into the ultrasonic treatment tank, and the ultrasonic treatment tank; The sludge treatment apparatus, wherein the turbulent sedimentation tank, the swirl flow separation tank, and an ultrasonic oscillator are disposed in a main body case. 前記旋回流分離槽および前記乱流沈殿槽を前記超音波処理槽よりも下方に配置し、前記超音波発振器を前記超音波処理槽よりも上方に配置したことを特徴とする請求項1に記載の汚泥処理装置。 The swirl flow separation tank and the turbulent sedimentation tank are disposed below the ultrasonic treatment tank, and the ultrasonic oscillator is disposed above the ultrasonic treatment tank. Sludge treatment equipment. 前記本体ケース内で前記乱流沈殿槽および前記旋回流分離槽の設置スペースと前記超音波処理槽および前記超音波発振器の設置スペースとを仕切り板で区切ったことを特徴とする請求項2に記載の汚泥処理装置。 The installation space for the turbulent sedimentation tank and the swirl flow separation tank and the installation space for the ultrasonic treatment tank and the ultrasonic oscillator are separated by a partition plate in the main body case. Sludge treatment equipment. 前記本体ケースに断熱材を貼付したことを特徴とする請求項1から3のいずれかに記載の汚泥処理装置。 The sludge treatment apparatus according to any one of claims 1 to 3, wherein a heat insulating material is attached to the main body case. 前記本体ケース外面を太陽熱を吸収する濃色としたことを特徴とする請求項1から4のいずれかに記載の汚泥処理装置。 The sludge treatment apparatus according to any one of claims 1 to 4, wherein the outer surface of the main body case has a dark color that absorbs solar heat. 前記超音波処理槽を、堰によって第1の処理槽と第2の処理槽に区分し、前記第1の処理槽に前記排水の流入口と超音波振動子を備え、前記第2の処理槽に前記排水の流出口を備え、前記第2の処理槽を前記第1の処理槽の両側部にそれぞれ設け、前記超音波振動子を前記堰の第1処理槽側の面に配置したことを特徴とする請求項1に記載の汚泥処理装置。 The ultrasonic treatment tank is divided into a first treatment tank and a second treatment tank by a weir, and the first treatment tank includes the drainage inlet and an ultrasonic vibrator, and the second treatment tank. The drainage outlet is provided, the second treatment tank is provided on both sides of the first treatment tank, and the ultrasonic vibrator is disposed on the surface of the weir on the first treatment tank side. The sludge treatment apparatus according to claim 1, wherein the apparatus is a sludge treatment apparatus. 前記超音波処理槽の上部に蓋体を設け、前記蓋体を断熱材で覆ったことを特徴とする請求項1に記載の汚泥処理装置。 The sludge treatment apparatus according to claim 1, wherein a lid is provided on an upper portion of the ultrasonic treatment tank, and the lid is covered with a heat insulating material. 第1の処理槽の堰を除く他の壁面の外壁面に熱交換手段を設けたことを特徴とする請求項に記載の汚泥処理装置。 The sludge treatment apparatus according to claim 6 , wherein heat exchange means is provided on the outer wall surface of the other wall surface excluding the weir of the first treatment tank. 前記旋回流分離槽および前記乱流沈殿槽を前記超音波処理槽よりも下方に配置し、前記本体ケース内で前記乱流沈殿槽および前記旋回流分離槽の設置スペースと前記超音波処理槽および前記超音波発振器の設置スペースとを仕切り板で区切り、前記超音波処理槽および前記超音波発振器の設置スペース内に空気の撹拌手段を設けたことを特徴とする請求項2または3に記載の汚泥処理装置。 The swirl flow separation tank and the turbulent precipitation tank are disposed below the ultrasonic treatment tank, and the installation space for the turbulent precipitation tank and the swirl flow separation tank in the main body case, the ultrasonic treatment tank, and The sludge according to claim 2 or 3, wherein an installation space for the ultrasonic oscillator is divided by a partition plate, and air agitation means is provided in the installation space for the ultrasonic treatment tank and the ultrasonic oscillator. Processing equipment. 前記本体ケースに本体ケースと本体ケース設置面との空間確保手段を設けたことを特徴とする請求項1から3のいずれかに記載の汚泥処理装置。 The sludge treatment apparatus according to any one of claims 1 to 3, wherein a space securing means for the main body case and the main body case installation surface is provided in the main body case.
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