JP2015120145A - Waste water treatment device - Google Patents

Waste water treatment device Download PDF

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JP2015120145A
JP2015120145A JP2014215883A JP2014215883A JP2015120145A JP 2015120145 A JP2015120145 A JP 2015120145A JP 2014215883 A JP2014215883 A JP 2014215883A JP 2014215883 A JP2014215883 A JP 2014215883A JP 2015120145 A JP2015120145 A JP 2015120145A
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airtight state
upper lid
wastewater
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JP5725593B1 (en
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加藤 行平
Kohei Kato
行平 加藤
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Abstract

PROBLEM TO BE SOLVED: To provide a waste water treatment device reducing the volume of waste water, further free from the problem of the emission of deleterious materials into the air and also capable of performing the safe storage over a long period of waste water after treatment and the effective utilization of generation energy.SOLUTION: Provided is a waste water treatment device comprising: a treatment tank of treating waste water; an upper cover coupled with the treatment tank in an airtight state; a waste water pouring hole provided at the upper cover and capable of retaining an airtight state; a gelling agent pouring hole provided at the upper cover and capable of retaining an airtight state; a blast hole provided at the upper cover and capable of retaining an airtight state; and an exhaust hole provided at the upper cover and capable of retaining an airtight state, and further comprising a sealing plate capable of sealing the removed treatment tank.

Description

本発明は、一般に、放射性廃水などの廃水を処理する装置に関し、特に、廃水の容積を減じ、更に、安全に、長期間保管する装置に関する。   The present invention relates generally to an apparatus for treating wastewater such as radioactive wastewater, and more particularly to an apparatus for reducing the volume of wastewater and storing it safely and for a long period of time.

水分中に廃棄すべき不要な物質、特に放射性物質が混入している廃水を処理する際には、その水分を減少させ、その後に、密閉して保管することが有効である。   When treating unnecessary substances to be discarded in moisture, particularly waste water mixed with radioactive substances, it is effective to reduce the moisture and then store it sealed.

そのような方法の一部としては、特許文献1に記載されているように、廃水と、アクリル系重合体と多孔質土類からなるゲル化剤とを混合して、廃水をゲル化し、更に、送風手段によって水分を気化させ、体積を減少する廃水処理の技術が開示されている。   As a part of such a method, as described in Patent Document 1, waste water is mixed with a gelling agent composed of an acrylic polymer and a porous earth to gel the waste water, A wastewater treatment technique is disclosed in which moisture is vaporized by a blowing means to reduce the volume.

特許第5175378号Japanese Patent No. 5175378

しかし、この方法によると、気化した水分(水蒸気)については、特に処理方法を規定していないため、大気中に放散することも考えられ、その際に、水蒸気とともに気化した、あるいは微粉末状態となった、有害物質(放射性物質を含む)が、大気中に浮遊する可能性があるため、大気中に有害物質が放散しない追加の方策が必要となる。更に、体積が減少した廃水を処理する方法、例えば、長期間密閉して保管する方法については示されていない。 However, according to this method, there is no particular treatment method for vaporized water (water vapor), so it may be dissipated into the atmosphere. At that time, vaporized with water vapor or in a fine powder state Since hazardous substances (including radioactive substances) may become suspended in the atmosphere, additional measures are required to prevent harmful substances from being released into the atmosphere. Furthermore, there is no indication of a method for treating waste water with a reduced volume, for example a method of storing it sealed for a long time.

そこで、本発明では、廃水の体積を減少させるとともに、放射性廃水の場合に処理済みの廃水を密閉して保存することができ、更に、発生する熱エネルギーを取り出すことのできる、廃水処理装置を提供することを課題とする。   Therefore, the present invention provides a wastewater treatment apparatus that can reduce the volume of wastewater, seal and store treated wastewater in the case of radioactive wastewater, and further extract the generated thermal energy. The task is to do.

本発明は、上記課題を解決するための廃水処理装置であって、
廃水を処理する処理槽と、
処理槽と気密状態で結合する上蓋と、
上蓋に設けられ、気密状態を保つことができる廃水注入孔と、
上蓋に設けられ、気密状態を保つことができるゲル化剤投入孔と、
上蓋に設けられ、気密状態を保つことができる送風孔と、
上蓋に設けられ、気密状態を保つことができる排気孔と
を有し、処理槽において、気密状態で、廃水注入孔から注入された廃水を、ゲル化剤投入孔から投入したゲル化剤によって攪拌することなくゲル化し、更に、気密状態で、ゲル化した廃水の水分を前記送風孔から前記排気孔への送風により減少させ、更に、上蓋と処理槽とが取り外し可能に構成され、取り外した処理槽に密閉板をかぶせて密閉することを特徴とする。
The present invention is a wastewater treatment apparatus for solving the above problems,
A treatment tank for treating waste water;
An upper lid coupled with the processing tank in an airtight state;
A waste water injection hole provided in the upper lid and capable of maintaining an airtight state;
A gelling agent charging hole provided in the upper lid and capable of maintaining an airtight state;
An air hole provided in the upper lid and capable of maintaining an airtight state;
An exhaust hole provided in the upper lid and capable of maintaining an airtight state, and in a treatment tank, the wastewater injected from the wastewater injection hole in an airtight state is agitated by the gelling agent introduced from the gelling agent introduction hole. It is gelled without further reducing the moisture of the gelled wastewater by blowing air from the blow hole to the exhaust hole, and the upper lid and the treatment tank are configured to be removable, and the removed treatment It is characterized by covering the tank with a sealing plate.

これにより、気密状態に保たれた本装置において、処理槽内で、廃水注入孔から注入された廃水と、ゲル化剤投入孔から投入されたゲル化剤とにより、ゲル化廃水が形成され、送風孔からの送風により、水分が気化し、気化した水蒸気が排気孔へ排気される。その際に、水分とともに微粉末状態となった有害物質も排気孔だけに導かれるため、その後の処理を適切に行うことにより大気中への放散が防止できる。更に、処理槽を上蓋から取り外し、処理槽に密閉板をかぶせて密閉することにより、特に放射性廃水の場合に、放射性物質の飛散防止、放射能の遮蔽の効果が得られる。   Thereby, in this apparatus kept in an airtight state, gelation wastewater is formed by the wastewater injected from the wastewater injection hole and the gelling agent injected from the gelling agent injection hole in the treatment tank, Moisture is evaporated by blowing air from the blow hole, and the vaporized water vapor is exhausted to the exhaust hole. At that time, since harmful substances that are in a fine powder state together with moisture are also introduced only into the exhaust hole, it is possible to prevent emission into the air by appropriately performing the subsequent processing. Furthermore, the treatment tank is removed from the upper lid, and the treatment tank is covered with a sealing plate and sealed, so that the radioactive substance can be prevented from being scattered and the radiation can be shielded particularly in the case of radioactive wastewater.

また、本発明は、更に、廃水処理装置であって、処理槽と上蓋との間に、処理槽及び上蓋と気密状態で脱着可能に結合する中間槽を有し、中間槽と処理槽、または、上蓋と中間槽が取り外し可能に構成され、取り外した処理槽、または、処理槽と中間槽の結合体に密閉板をかぶせて密閉することを特徴とする。これにより、装置設計の自由度が増し、容量の増減、各槽の材質の選択などに適切に対応することができる。   Further, the present invention is a wastewater treatment apparatus, further comprising an intermediate tank that is detachably coupled to the treatment tank and the upper lid in an airtight state between the treatment tank and the upper lid, and the intermediate tank and the treatment tank, or The upper lid and the intermediate tank are configured to be removable, and the sealing tank is covered with a sealing plate on the removed processing tank or a combination of the processing tank and the intermediate tank. Thereby, the freedom degree of apparatus design increases and it can respond appropriately to the increase / decrease in capacity | capacitance, the selection of the material of each tank, etc.

本発明は、更に、廃水処理装置であって、密閉板に、流体通過手段を有することを特徴とする。これによって、特に、処理槽に保存される放射性物質による熱エネルギーを、通過する流体へと熱交換することにより、有効な利用ができる。   The present invention is further a wastewater treatment apparatus, wherein the sealing plate has a fluid passage means. Thereby, in particular, effective use can be made by exchanging heat energy of the radioactive substance stored in the treatment tank to the fluid passing therethrough.

本発明は、更に、廃水処理装置であって、上蓋に、グリコール類を投入する、グリコール投入孔を有することを特徴とする。これにより、ゲル化廃水の、水分再吸収の少ない固形化が実現できる。   The present invention is further a wastewater treatment apparatus characterized by having a glycol introduction hole for introducing glycols into the upper lid. Thereby, solidification with little moisture reabsorption of gelation wastewater is realizable.

本発明は、更に、廃水処理装置であって、上蓋に、有機ソーダ塩、消毒剤、香料、油吸着剤のいずれか1つ以上を投入する、添加物投入孔を有することを特徴とする。これにより、廃水の状態による適切なゲル化が実現できる。   The present invention is further a wastewater treatment apparatus, characterized in that the upper lid has an additive charging hole into which any one or more of an organic soda salt, a disinfectant, a fragrance, and an oil adsorbent are charged. Thereby, suitable gelation by the state of wastewater is realizable.

本発明の廃水処理装置によれば、ゲル化廃水の水分を減少させる過程において気化した水蒸気及び有害物質を、気密状態で排気孔からのみ排気できるから、有害物質の大気中への放散を防止することができ、更に放射性廃水の場合に処理済みの廃水を密閉して保存することができ、発生する熱エネルギーを取り出すことができる。   According to the wastewater treatment apparatus of the present invention, water vapor and harmful substances vaporized in the process of reducing the water content of the gelled wastewater can be exhausted only from the exhaust hole in an airtight state, thereby preventing the harmful substances from being released into the atmosphere. Furthermore, in the case of radioactive wastewater, the treated wastewater can be sealed and stored, and the generated thermal energy can be taken out.

本発明の一実施形態の廃水処理装置1の斜視図である。1 is a perspective view of a wastewater treatment apparatus 1 according to an embodiment of the present invention. 本発明の一実施形態の廃水処理装置の処理槽2の斜視図である。It is a perspective view of the processing tank 2 of the waste water treatment apparatus of one Embodiment of this invention. 本発明の一実施形態の廃水処理装置の中間槽3の斜視図である。It is a perspective view of the intermediate tank 3 of the waste water treatment apparatus of one Embodiment of this invention. 本発明の一実施形態の廃水処理装置の上蓋4の斜視図である。It is a perspective view of the upper cover 4 of the waste water treatment apparatus of one Embodiment of this invention. 本発明の一実施形態の廃水処理装置の上蓋4の各孔部の断面図である。It is sectional drawing of each hole of the upper cover 4 of the waste water treatment apparatus of one Embodiment of this invention. 本発明の一実施形態の廃水処理装置の模式的な断面図である。It is typical sectional drawing of the wastewater treatment apparatus of one Embodiment of this invention. 本発明の一実施形態の廃水処理装置の密閉板5を含む斜視図である。It is a perspective view containing the sealing board 5 of the wastewater treatment apparatus of one Embodiment of this invention. 本発明の一実施形態の廃水処理装置の密閉板5の平面断面図である。It is plane sectional drawing of the sealing board 5 of the wastewater treatment apparatus of one Embodiment of this invention.

添付の図面を参照しながら、本発明の実施の形態について以下に説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

図1は本発明の一実施形態の廃水処理装置1の斜視図である。廃水を処理する処理槽2、処理槽2の上方に、結合部分が気密状態で結合される中間槽3、中間槽3の上方に、結合部分が気密状態で結合される上蓋4を有する。   FIG. 1 is a perspective view of a wastewater treatment apparatus 1 according to an embodiment of the present invention. A treatment tank 2 for treating waste water, an intermediate tank 3 where the coupling portion is coupled in an airtight state, and an upper lid 4 where the coupling portion is coupled in an airtight state are disposed above the intermediate tank 3.

全体の寸法は、底面外周が、縦5m、横5m、高さは、処理槽2が0.5〜0.8m、中間槽3が5m、上蓋4が0.5m以下程度が、輸送・保管などの観点から望ましいが、この寸法に限定されるものではなく、使用条件に対応して、より大型でも、あるいはより小型であってもよい。   The overall dimensions of the outer periphery of the bottom are 5m in length, 5m in width, and the height is 0.5 to 0.8m for the treatment tank 2, 5m for the intermediate tank 3, and about 0.5m or less for the upper lid 4 for transportation and storage. However, it is not limited to this dimension, and may be larger or smaller depending on the use conditions.

図2は、本発明の一実施形態の廃水処理装置の処理槽2の斜視図である。処理槽2は、略直方体の薄肉中空容器で、上部が開放されており、上部の周囲には、中間槽3と結合するためのフランジ21が設けられており、更に、フランジ21には、ねじ締結のための穴部22が、複数設けられている。   FIG. 2 is a perspective view of the treatment tank 2 of the wastewater treatment apparatus according to the embodiment of the present invention. The processing tank 2 is a thin hollow container having a substantially rectangular parallelepiped shape, and an upper part is opened. A flange 21 for coupling to the intermediate tank 3 is provided around the upper part. A plurality of holes 22 for fastening are provided.

処理槽2の材質は、廃水のゲル化処理による腐蝕を防止する点から、ステンレス製が望ましいが、他の材質であっても防蝕処理がなされていれば、それでもよい。また、処理槽2内部は、後述する上蓋4の廃水注入孔43に対応して、仕切り壁23により4つの区画に仕切られている。なお、仕切り壁23の最下部には、図に示すように、隣の区画と連通するように切り欠きが設けられているが、切り欠きを設けず完全に独立した区画とするようにしてもよく、運用上の観点から選択すればよい。   The material of the treatment tank 2 is preferably made of stainless steel from the viewpoint of preventing the corrosion due to the gelation treatment of the wastewater, but may be any other material as long as the corrosion treatment is performed. Further, the inside of the processing tank 2 is divided into four sections by a partition wall 23 corresponding to a waste water injection hole 43 of the upper lid 4 described later. In addition, as shown in the drawing, a notch is provided at the lowermost part of the partition wall 23 so as to communicate with the adjacent compartment. Often, it should be selected from an operational point of view.

図3は、本発明の一実施形態の廃水処理装置の中間槽3の斜視図である。中間槽3は、略直方体の薄肉中空で、上下が開放されており、下部の周囲には、処理槽2との結合のためのフランジ31が設けられ、フランジ31にはねじ締結のための穴部32が、複数設けられている。同様に、上部の周囲には、上蓋4との結合のためのフランジ33が設けられ、フランジ33にもねじ締結のための穴部34が、複数設けられている。   FIG. 3 is a perspective view of the intermediate tank 3 of the wastewater treatment apparatus according to the embodiment of the present invention. The intermediate tank 3 is a substantially rectangular parallelepiped thin hollow, and is open at the top and bottom. A flange 31 for coupling with the processing tank 2 is provided around the lower part, and the flange 31 has a screw fastening hole. A plurality of portions 32 are provided. Similarly, a flange 33 for coupling with the upper lid 4 is provided around the upper portion, and the flange 33 is also provided with a plurality of holes 34 for screw fastening.

中間槽3の材質は、ステンレス製でもよいが、処理槽2ほど腐蝕についての恐れはないため、塗装した鉄板でもよい。低価格の利点がある。   The material of the intermediate tank 3 may be made of stainless steel, but may be a coated iron plate because there is no fear of corrosion as much as the processing tank 2. There is an advantage of low price.

図4は、本発明の一実施形態の廃水処理装置の上蓋4の斜視図である。上蓋4は、高さの低い略直方体の薄肉中空で、下部が開放されており、下部の周囲には、中間槽3との結合のためのフランジ41が設けられ、フランジ41にはねじ締結のための穴部42が、複数設けられている。   FIG. 4 is a perspective view of the upper lid 4 of the wastewater treatment apparatus according to the embodiment of the present invention. The upper lid 4 is a thin, hollow, generally rectangular parallelepiped with a low height, the lower part is open, and a flange 41 for connection with the intermediate tank 3 is provided around the lower part. A plurality of hole portions 42 are provided.

上蓋4の材質は、腐蝕防止の観点から、ステンレス製が望ましいが、他の材質であってもよい。   The material of the upper lid 4 is desirably made of stainless steel from the viewpoint of preventing corrosion, but may be other materials.

上蓋4の上面には、廃水注入孔43、ゲル化剤投入孔44が各4ヶ所、送風孔45、排気孔46が各2ヶ所、、更に、グリコール類投入孔47、添加剤投入孔48が各4ヶ所、それぞれが上蓋4の上面の対角線交点に対し、ほぼ対称位置に開けられている。   On the upper surface of the upper lid 4, there are four waste water injection holes 43 and four gelling agent introduction holes 44, two ventilation holes 45 and two exhaust holes 46, and further glycol introduction holes 47 and additive introduction holes 48. Each of the four locations is opened at substantially symmetrical positions with respect to the diagonal intersection of the upper surface of the upper lid 4.

図1に示すように、処理槽2と中間槽3は、双方のフランジ21、31に設けられた穴部22、32をボルトを通し、ナットで固定することで結合する。更に、気密状態を保つために、その間にゴムパッキングを挟み込む。中間槽3と上蓋4との結合も、処理槽2と中間槽3との結合と同様の方法で行われる。なお、気密状態の結合方法はこれに限定されず、公知の方法であればそれでもよい。   As shown in FIG. 1, the processing tank 2 and the intermediate tank 3 are coupled by passing holes 22 and 32 provided in both flanges 21 and 31 through bolts and fixing them with nuts. Furthermore, in order to maintain an airtight state, a rubber packing is sandwiched therebetween. The connection between the intermediate tank 3 and the upper lid 4 is also performed in the same manner as the connection between the processing tank 2 and the intermediate tank 3. Note that the airtight bonding method is not limited to this, and any known method may be used.

図5は、本発明の一実施形態の廃水処理装置の上蓋4の各孔部の断面図である。上蓋4の上面の、廃水注入孔43、ゲル化剤投入孔44、送風孔45、排気孔46、グリコール類投入孔47、添加剤投入孔48の各孔部の周囲には、4個の***が設けられ、一方、各孔部には、フランジ付きの管401が挿入される。そのフランジにも同様に4個の***が開けられ、上蓋4の内側からそれらの***を通してボルト402を突出させ、上部のナット403によって締め上げて、管401を固定するようにする。なお、気密性を保持するため、ゴムパッキング404を上蓋4と管401のフランジ部の間に挟み込む。、ここで、管401からは、図示しない廃水供給源、ゲル化剤供給源、送風源、排気処理手段、グリコール類供給源、添加剤供給源へと、直接、連結されるか、あるいは、別のホースなどを介して連結される。   FIG. 5 is a cross-sectional view of each hole of the upper lid 4 of the wastewater treatment apparatus according to the embodiment of the present invention. On the upper surface of the upper lid 4, there are four small holes around each of the waste water injection hole 43, the gelling agent charging hole 44, the air blowing hole 45, the exhaust hole 46, the glycols charging hole 47, and the additive charging hole 48. On the other hand, a flanged tube 401 is inserted into each hole. Similarly, four small holes are made in the flange, and the bolt 402 is projected from the inside of the upper lid 4 through the small holes, and is tightened by the upper nut 403 to fix the tube 401. In order to maintain airtightness, the rubber packing 404 is sandwiched between the upper lid 4 and the flange portion of the tube 401. Here, the pipe 401 is directly connected to a waste water supply source, a gelling agent supply source, an air supply source, an exhaust treatment means, a glycol supply source, an additive supply source (not shown), or separately. It is connected via a hose.

更に、これらの連結の経路あるいは供給源には、バルブ、弁、コック、栓、蓋などを設置して、使用中及び不使用時に、廃水処理装置1からの気体が漏れないよう、気密状態を保つようになっている。   Furthermore, valves, valves, cocks, stoppers, lids, etc. are installed in these connection paths or supply sources so that the gas from the wastewater treatment apparatus 1 does not leak during use and when not in use. To keep.

なお、孔部と管やホースなどとの結合方法は、この方法に限定されず、孔部にフランジ様のものを溶接で固定する、あるいは、孔部に雌ねじを切り、雄ねじの継ぎ手をねじ込むなど、種々の方法があり、どの方法によってもよい。   Note that the method of connecting the hole to the pipe or hose is not limited to this method, and a flange-like object is fixed to the hole by welding, or a female screw is cut into the hole and a male screw joint is screwed. There are various methods, and any method may be used.

ここで、廃水供給源としては、タンク、貯水槽などがあり、ゲル化剤供給源としては、公知の粒粒体供給機などがあり、送風源としては、送風機、ブロア、扇風機、除湿機などがあり、排気処理手段としては、水蒸気を水に戻す凝結器や、水中を通したのちに大気中に排気するす濾過器などがあり、グリコール類供給源や添加剤供給源としては、公知の液体供給装置や粉粒体供給装置が用いられる。   Here, as the wastewater supply source, there are a tank, a water storage tank, etc., as the gelling agent supply source, there is a known granule supply device, etc., and as the blower source, a blower, blower, fan, dehumidifier, etc. Exhaust treatment means include a condenser that returns water vapor to water, and a soot filter that exhausts water into the atmosphere after passing through water. Known glycol supply sources and additive supply sources are known. A liquid supply device or a powder and granular material supply device is used.

なお、中間槽3は、複雑な構造の上蓋4をなるべく浅く軽くし、かつ、全体の高さを確保するために設けることが好ましく、その中間槽の数は、使用される状況に応じて、1に限定されず、2以上でもよく、あるいは、省略することも可能である。その場合は、処理槽2と上蓋4とが、密閉状態で結合される。これにょると、部品点数が少なくなり、組立工数も減少できる。   In addition, it is preferable to provide the intermediate tank 3 in order to make the upper lid 4 of a complicated structure as shallow and light as possible and to ensure the overall height, and the number of the intermediate tanks depends on the situation used. It is not limited to 1 and may be 2 or more, or may be omitted. In that case, the processing tank 2 and the upper lid 4 are joined in a sealed state. As a result, the number of parts is reduced and the number of assembly steps can be reduced.

次に、本発明の一実施形態の廃水処理装置の作用について説明する。図6は、本発明の一実施形態の廃水処理装置の模式的な断面図である。ここで、廃水注入孔43、ゲル化剤投入孔44については、飛散を少なくするため、管401を上蓋4から深く挿入することが望ましく、特に、廃水注入孔43について管401を最も深く挿入することが更に望ましい。送風孔45、排気孔46については、深く挿入する必要はない。また、排気孔46の方が開口部が広めの方が、滑らかな排気のために望ましく、特に排気孔46については管401を設けなくてもよい。なお、これらの例には限定されず、使用条件により、適切な状態を選択すればよい。     Next, the operation of the wastewater treatment apparatus according to one embodiment of the present invention will be described. FIG. 6 is a schematic cross-sectional view of a wastewater treatment apparatus according to an embodiment of the present invention. Here, with respect to the waste water injection hole 43 and the gelling agent injection hole 44, it is desirable to insert the tube 401 deeply from the upper lid 4 in order to reduce scattering. It is further desirable. The blowing holes 45 and the exhaust holes 46 need not be inserted deeply. Further, it is desirable for the exhaust hole 46 to have a wider opening, for smooth exhaust, and the pipe 401 may not be provided for the exhaust hole 46 in particular. Note that the present invention is not limited to these examples, and an appropriate state may be selected depending on use conditions.

ここで、まず、図2に示す処理槽2の4区画のうちのいずれかの上方のゲル化剤投入孔44から、ゲル化剤を投入する。ゲル化剤については特許文献1に開示されている、例えばポリアクリル酸ナトリウム(架橋型が望ましい)のようなアクリル系重合体と多孔質土類から構成されるものとし、廃水中の微少物質を多孔質土類に吸着するとともに、水分をゲル化する機能を有する。   Here, first, the gelling agent is charged from the gelling agent charging hole 44 above any one of the four sections of the treatment tank 2 shown in FIG. Regarding the gelling agent, it is disclosed in Patent Document 1, for example, it is composed of an acrylic polymer such as sodium polyacrylate (preferably a crosslinked type) and a porous earth, Adsorbs to porous earth and has a function of gelling moisture.

なお、廃水の状態によっては、特許文献1に詳述するように、添加剤投入孔48から、腐敗防止のための有機ソーダ塩、殺菌のための消毒剤、防臭のための香料、油脂類が含入している場合の油吸着剤などを投入する。同時に複数の添加剤が必要であれば、添加剤投入孔48の数をふやせばよく、添加剤が不要であれば、添加剤投入孔48はなくてもよい。また、添加剤投入孔48についても、管401を挿入し、添加剤の種類などに応じて、その挿入深さを変更できるようにしてもよい。   Depending on the state of the waste water, as described in detail in Patent Document 1, organic soda salt for anti-corruption, disinfectant for sterilization, perfume for deodorization, fats and oils are added from the additive charging hole 48. Add oil adsorbent, etc. if contained. If a plurality of additives are required at the same time, the number of additive charging holes 48 may be increased. If no additive is required, the additive charging holes 48 may not be provided. Also, the additive insertion hole 48 may be inserted with a tube 401 so that the insertion depth can be changed according to the type of additive.

次に、処理槽2の、ゲル化剤を投入したのと同じ区画に、廃水注入孔43から、廃水を注入する。すると、廃水中の微少物質が多孔質土類に吸着されるとともに、廃水がゲル化剤によりゲル状になる。   Next, wastewater is injected from the wastewater injection hole 43 into the same section of the treatment tank 2 where the gelling agent is introduced. Then, a minute substance in the wastewater is adsorbed by the porous earth, and the wastewater is gelled by the gelling agent.

なお、廃水の処理は、図6に示すように、処理槽2の上端を超えない処理液面24で行われるため、中間槽3の廃水による腐蝕の恐れは少ない。   As shown in FIG. 6, the treatment of the waste water is performed on the treatment liquid surface 24 that does not exceed the upper end of the treatment tank 2, so that there is little risk of corrosion due to the waste water of the intermediate tank 3.

次に、いずれか一方あるいは両方の送風孔45から、特許文献1に詳述するような、温度が摂氏20度から60度までの間、湿度30%以下の乾燥空気を送り込む。するとゲル化された廃水から水分が気化し、空気と混合し、いずれか一方あるいは両方の排気孔46へと向かうことになる。同時に、水分と同じような条件で気化され、あるいは微粉末状態となった、有害物質についても、排気孔46へ向かうこととなる。   Next, as described in detail in Patent Document 1, dry air having a humidity of 30% or less is sent from either one or both of the air blowing holes 45 as described in detail in Patent Document 1. Then, moisture is vaporized from the gelled waste water, mixed with air, and heads for one or both of the exhaust holes 46. At the same time, harmful substances that are vaporized under the same conditions as moisture or in a fine powder state are also directed to the exhaust hole 46.

なお、排気孔46以外の孔部、処理槽2・中間槽3・上蓋4の間は、気密性が保持されており、それらの個所から気化した有害物質が漏れることはない。   In addition, airtightness is maintained between the holes other than the exhaust holes 46, and between the processing tank 2, the intermediate tank 3, and the upper lid 4, and vaporized harmful substances are not leaked from these places.

ゲル化廃水から水分が減少すると、当初のゲル化剤の状態に近くなり、廃水をゲル化することができるようになるため、再度、廃水を廃水注入孔43から注入すれば、ふたたび、廃水中の微少物質が多孔質土類に吸着されるとともに、廃水がゲル化剤によりゲル状となる。   When the water content decreases from the gelled wastewater, it becomes close to the original gelling agent state, and the wastewater can be gelled. Therefore, if the wastewater is injected again from the wastewater injection hole 43, the wastewater again Are adsorbed by the porous earth, and the waste water is gelled by the gelling agent.

その際に、必要があれば、ゲル化剤をゲル化剤投入孔44から追加してもよい。   At that time, if necessary, a gelling agent may be added from the gelling agent charging hole 44.

このようなサイクルを繰り返し、多量の廃水の中の微少物質を多孔質土類に吸着させた状態で、水分が大幅に減少させられる。 Such a cycle is repeated, and the moisture content is greatly reduced in a state where a minute substance in a large amount of waste water is adsorbed to the porous earth.

最終的に、ゲル化能力が減衰した場合には、特許文献1に開示されるように、グリコール類投入孔47より、エチレングリコールなどのグリコール類(必要に応じて触媒として苛性ソーダや苛性カリのような無機アルカリを含むこともある)を投入して、水分の減少したゲル化廃水あるいは当初のゲル化剤の状態に近いものを、水分の再吸収をしにくい状態の固形化状態にする。すなわち、化学反応により、一部または全体に、ポリアクリル酸グリコールエステル、あるいはポリアクリル酸グリコールエーテルなどの物質が生じ、固形化状態となるものである。   Finally, when the gelling ability is attenuated, as disclosed in Patent Document 1, glycols such as ethylene glycol (such as caustic soda and caustic potash as a catalyst as necessary) are introduced from the glycols introduction hole 47. In some cases, an inorganic alkali may be contained, and the gelled waste water with reduced moisture or the one close to the state of the original gelling agent is made into a solid state in which it is difficult to reabsorb moisture. That is, a substance such as polyacrylic acid glycol ester or polyacrylic acid glycol ether is generated in part or in whole by a chemical reaction, and becomes a solid state.

次に、処理槽2の4区画のうちの別の区画において、ゲル化剤投入、廃水注入、送風のサイクルを繰り返し、グリコール類を投入して固形化状態にする操作を行う。   Next, in another of the four compartments of the treatment tank 2, the gelling agent charging, waste water injection, and air blowing cycles are repeated, and glycols are charged to make a solid state.

更に、処理槽2の第3、第4の区画に対しても、同じような操作を繰り返し、全ての区画において、作業が終了したら、処理槽2と中間槽3との結合を解き、処理槽2のみを新規な処理槽、あるいは固形物を除去した処理槽と交換し、中間槽3と、再度、結合する。   Further, the same operation is repeated for the third and fourth sections of the processing tank 2 and when the operation is completed in all the sections, the coupling between the processing tank 2 and the intermediate tank 3 is released, and the processing tank Only 2 is replaced with a new processing tank or a processing tank from which solids are removed, and the intermediate tank 3 is coupled again.

その後、処理槽2については、その内部の固形物のみ、あるいは処理槽2ごとまとめて、焼却、埋立などの次の処理を行う。なお、廃水が放射性廃水である場合は、処理槽2の内部の固形物は、高い放射線量を持っている場合もあるため、専門的な処理を行う必要があるが、廃水の状態に比べ、極めて体積が小さくなっているので、その処理も比較的容易となる。   Then, about the processing tank 2, only the solid substance of the inside or the whole processing tank 2 is put together, and the next processes, such as incineration and a landfill, are performed. In addition, when the wastewater is radioactive wastewater, the solid matter inside the treatment tank 2 may have a high radiation dose, so it is necessary to perform specialized treatment, but compared to the state of wastewater, Since the volume is extremely small, the processing is relatively easy.

図7は、本発明の一実施形態の廃水処理装置の密閉板5を含む斜視図であり、処理槽2にかぶせて密閉した状態を示している。ここで、密閉板5は、略直方体の密閉板本体51とその外周のフランジ52とからなり、フランジ52には、処理槽2のフランジ21に設けられた孔部に対応する孔部が設けられており、処理槽2に密閉板5をかぶせて、対応する孔部にボルト53を貫通させ、ナット54で締結することによって、処理槽2と密閉板5は結合される。その際に、両方のフランジの間にパッキングを配して、気密状態で密閉する。このようにすれば、密閉した状態のままで、長期間、例えば、100年以上も保管しすることができる。   FIG. 7 is a perspective view including the sealing plate 5 of the wastewater treatment apparatus according to the embodiment of the present invention, and shows a state where the treatment tank 2 is covered and sealed. Here, the sealing plate 5 includes a substantially rectangular parallelepiped sealing plate main body 51 and a flange 52 on the outer periphery thereof. The flange 52 is provided with a hole corresponding to the hole provided in the flange 21 of the processing tank 2. The processing tank 2 is covered with the sealing plate 5, the bolts 53 are passed through the corresponding holes, and fastened with the nuts 54, so that the processing tank 2 and the sealing plate 5 are coupled. At that time, a packing is arranged between both flanges and hermetically sealed. If it does in this way, it can be stored for a long time, for example, 100 years or more, in the sealed state.

なお、密閉板5の材質は、放射線を遮蔽する観点から、厚みがあることが望ましく、また、放射線吸収力のある素材であれば、更に、望ましい。なお、密閉板5と処理槽2との結合方法はここで述べた方法に限定されず、公知の密閉結合方法であればどのようなものであってもよい。   The material of the sealing plate 5 is preferably thick from the viewpoint of shielding radiation, and more preferably a material having a radiation absorbing ability. In addition, the coupling | bonding method of the sealing board 5 and the processing tank 2 is not limited to the method described here, What kind of thing may be used if it is a well-known hermetic coupling method.

また、密閉板本体51は、中実の厚板状のものであってもよいが、中空の容器としてもよい。更に、その中に、流体、例えば水を通過あるいは循環させる構造としてもよい。   Further, the sealed plate body 51 may be a solid thick plate, but may be a hollow container. Furthermore, it is good also as a structure which passes or circulates fluid, for example, water, in it.

図8は、本発明の一実施形態の廃水処理装置の密閉板5の平面断面図であり、流体通過手段として、流体入口55から水などの流体を流し込み、密閉板本体51内を蛇腹のように往復する配管57の中を通過させ、流体出口56から流出させるようにする。なお、流体入口55には、図示しない流体供給装置から流体を供給させ、必要に応じて、バルブ、栓などを設けてもよい。また、流体出口56の近傍にも必要に応じて、バルブ、栓などを設けてもよく、更に、その先には、取り出した熱エネルギーを利用するための熱交換装置を設ける。熱交換装置は、周知の装置を用いればよい。更に、熱交換後の流体は、流体供給装置に戻し、循環するようにしてもよい。   FIG. 8 is a plan sectional view of the sealing plate 5 of the wastewater treatment apparatus according to the embodiment of the present invention. As a fluid passage means, a fluid such as water is poured from the fluid inlet 55 so that the inside of the sealing plate main body 51 is like a bellows. It is made to pass through the pipe 57 that reciprocates to the fluid outlet 56 and to flow out from the fluid outlet 56. The fluid inlet 55 may be supplied with a fluid from a fluid supply device (not shown), and may be provided with a valve, a plug, or the like as necessary. Further, a valve, a plug, or the like may be provided in the vicinity of the fluid outlet 56 as necessary, and further, a heat exchange device for using the extracted heat energy is provided at the tip. A known device may be used as the heat exchange device. Furthermore, the fluid after heat exchange may be returned to the fluid supply device and circulated.

このようにすれば、処理槽2において、放射性物質からの発熱がある場合に、その熱エネルギーを流体が吸収することで取り出すことができ、きわめて有用である。また、処理槽2の温度上昇を防止することもでき、更に、流体が放射線遮蔽効果を高めることも期待される。なお、流体通過手段の流体の経路については、配管57の形状に限定されるものではなく、熱エネルギーを効率的に取り出せるものであればどのような形状であってもよい。   In this way, when heat is generated from the radioactive substance in the treatment tank 2, the heat energy can be taken out by absorbing the fluid, which is extremely useful. Moreover, the temperature rise of the processing tank 2 can be prevented, and further, the fluid is expected to enhance the radiation shielding effect. The fluid path of the fluid passage means is not limited to the shape of the pipe 57, and may be any shape as long as heat energy can be taken out efficiently.

なお、密閉板本体51が下部、すなわち処理槽2側に底部を有し、閉じた直方体を形成する場合は、配管以外の部分を、空気以外の流体で充填するようにしてもよい。それによって、更に、放射線遮蔽効果や温度上昇防止効果が期待できる。   In addition, when the sealing board main body 51 has a bottom part in the lower part, ie, the process tank 2 side, and forms a closed rectangular parallelepiped, you may make it fill parts other than piping with fluids other than air. Thereby, a radiation shielding effect and a temperature rise preventing effect can be expected.

また、廃水処理装置1が上蓋4と処理槽2との間に中間槽3を有する構成の場合は、処理槽2を中間槽3から取り外し可能な構造とし、取り外した処理槽2を密閉板5によって密閉すればよい。あるいは、処理槽2と中間槽3とは結合されたまま、上蓋4を取り外し可能として、処理槽2及び中間槽3の結合体を広義の処理槽として、それを密閉板5で密閉するようにしてもよい。   Further, when the wastewater treatment apparatus 1 has an intermediate tank 3 between the upper lid 4 and the treatment tank 2, the treatment tank 2 is removable from the intermediate tank 3, and the removed treatment tank 2 is sealed with the sealing plate 5. Can be sealed. Alternatively, the upper lid 4 can be removed while the treatment tank 2 and the intermediate tank 3 are joined, and the combined body of the treatment tank 2 and the intermediate tank 3 is used as a broad treatment tank, which is sealed with the sealing plate 5. May be.

ここで、グリコール類投入孔47から、グリコール類を投入して、ゲル化廃水を固形化するものとしたが、ゲル化廃水のままの方が取扱に便利であれば、グリコール類を投入しなくてもよく、その場合はグリコール類投入孔47も不要である。   Here, the glycols are introduced from the glycol introduction hole 47 to solidify the gelled wastewater, but if the gelled wastewater is more convenient for handling, the glycols are not introduced. In that case, the glycols introduction hole 47 is also unnecessary.

これまでの説明で、処理槽2へ、まず、ゲル化剤投入孔44からゲル化剤を投入した後に、廃水注入孔43から廃水を注入することとしたが、この順序は逆でもよく、あるいは、同時であってもよい。廃水やゲル化剤の状態に応じて、適宜、選択すればよい。   In the above description, the gelling agent is first introduced into the treatment tank 2 from the gelling agent introduction hole 44 and then the wastewater is injected from the wastewater injection hole 43. However, this order may be reversed. , May be simultaneous. What is necessary is just to select suitably according to the state of waste water or a gelatinizer.

また、これまでの説明で、処理槽2を仕切り壁23によって4区画に仕切り、それぞれに対応するように、上蓋4に、廃水注入孔43、ゲル化剤投入孔44、グリコール類投入孔47,添加剤投入孔48を設けるとしたが、処理槽2の仕切り壁23による区画数は、これより多くても少なくてもよく、仕切り壁23がなくてもよい。   In the above description, the treatment tank 2 is divided into four sections by the partition wall 23, and the waste water injection hole 43, the gelling agent introduction hole 44, the glycols introduction hole 47, Although the additive charging hole 48 is provided, the number of partitions by the partition wall 23 of the treatment tank 2 may be more or less than this, and the partition wall 23 may not be provided.

また、各孔部についても、区画の数と対応しても、対応しなくてもよく、その数も、これより多くても少なくてもよい。更に、送風孔45、排気孔46についても、各2個ずつとしたが、それより多くても少なくてもよい。すなわち、処理槽2が単一の区画であって、そこに単一のまたは複数の廃水注入孔43から廃水を注入するような形態でもよい。効率的に廃水処理ができれば、各部の個数はどのような数であってもよい。   Also, each hole may or may not correspond to the number of sections, and the number may be more or less. Further, although two air holes 45 and two exhaust holes 46 are provided, the number may be more or less than that. In other words, the treatment tank 2 may be a single section, and waste water may be injected into the treatment tank 2 from a single or a plurality of waste water injection holes 43. As long as waste water treatment can be performed efficiently, the number of each part may be any number.

なお、これまでの説明で、処理槽2内部には、廃水、ゲル化剤、グリコール類などを注入あるいは投入した後で、それらを攪拌する機構については記載されていない。通常は、ポリアクリル酸ナトリウムは、水分を、急速に、かつ、表面と内部の別なく均等に吸収するので、攪拌部は必ずしも必要としないが、廃水などの量、粘度、温度、湿度などの条件によって必要となる場合には、一つまたは複数の攪拌部を設けてもよい。攪拌部としては、公知の、攪拌翼を用いたミキサーなどを用いればよい。   In the description so far, there is no description of a mechanism for stirring the waste water, the gelling agent, the glycols, or the like after the waste water, the gelling agent, the glycols, or the like are injected or put into the treatment tank 2. Normally, sodium polyacrylate absorbs moisture quickly and evenly regardless of whether it is on the surface or inside, so a stirring section is not always necessary, but the amount of waste water, viscosity, temperature, humidity, etc. If necessary depending on conditions, one or a plurality of stirring units may be provided. As the stirring unit, a known mixer using a stirring blade may be used.

1 廃水処理装置
2 処理槽
3 中間槽
4 上蓋
43 廃水注入孔
44 ゲル化剤投入孔
45 送風孔
46 排気孔
5 密閉板
51 密閉板本体
DESCRIPTION OF SYMBOLS 1 Waste water treatment apparatus 2 Processing tank 3 Intermediate tank 4 Upper cover 43 Waste water injection hole 44 Gelling agent injection hole 45 Blower hole 46 Exhaust hole 5 Sealing plate 51 Sealing plate main body

Claims (5)

廃水を処理する処理槽と、
前記処理槽と気密状態で結合する上蓋と、
前記上蓋に設けられ、気密状態を保つことができる廃水注入孔と、
前記上蓋に設けられ、気密状態を保つことができるゲル化剤投入孔と、
前記上蓋に設けられ、気密状態を保つことができる送風孔と、
前記上蓋に設けられ、気密状態を保つことができる排気孔と
を有し、前記処理槽において、気密状態で、前記廃水注入孔から注入された廃水を、前記ゲル化剤投入孔から投入したゲル化剤によって攪拌することなくゲル化し、更に、気密状態で、前記ゲル化した廃水の水分を前記送風孔から前記排気孔への送風により減少させ、更に、前記上蓋と前記処理槽とが取り外し可能に構成され、取り外した前記処理槽に密閉板をかぶせて密閉することを特徴とする廃水処理装置。
A treatment tank for treating waste water;
An upper lid coupled with the treatment tank in an airtight state;
A waste water injection hole provided in the upper lid and capable of maintaining an airtight state;
A gelling agent charging hole provided in the upper lid and capable of maintaining an airtight state;
An air hole provided in the upper lid and capable of maintaining an airtight state;
A gas which is provided in the upper lid and has an exhaust hole capable of maintaining an airtight state, and in the treatment tank, wastewater injected from the wastewater injection hole in an airtight state is charged from the gelling agent input hole Gelates without agitation with an agent, and further reduces the moisture of the gelated wastewater by blowing air from the air blowing hole to the exhaust hole in an airtight state, and the upper lid and the treatment tank can be removed. A wastewater treatment apparatus comprising: a sealing plate placed on the removed treatment tank and sealed.
廃水を処理する処理槽と、
前記処理槽と気密状態で結合する中間槽と、
前記中間槽と気密状態で結合する上蓋と、
前記上蓋に設けられ、気密状態を保つことができる廃水注入孔と、
前記上蓋に設けられ、気密状態を保つことができるゲル化剤投入孔と、
前記上蓋に設けられ、気密状態を保つことができる送風孔と、
前記上蓋に設けられ、気密状態を保つことができる排気孔と
を有し、前記処理槽において、気密状態で、前記廃水注入孔から注入された廃水を、前記ゲル化剤投入孔から投入したゲル化剤によって攪拌することなくゲル化し、更に、気密状態で、前記ゲル化した廃水の水分を前記送風孔から前記排気孔への送風により減少させ、更に、前記中間槽と前記処理槽、または、前記上蓋と前記中間槽が取り外し可能に構成され、取り外した前記処理槽、または、前記処理槽と前記中間槽の結合体に密閉板をかぶせて密閉することを特徴とする廃水処理装置。
A treatment tank for treating waste water;
An intermediate tank coupled with the treatment tank in an airtight state;
An upper lid coupled with the intermediate tank in an airtight state;
A waste water injection hole provided in the upper lid and capable of maintaining an airtight state;
A gelling agent charging hole provided in the upper lid and capable of maintaining an airtight state;
An air hole provided in the upper lid and capable of maintaining an airtight state;
A gas which is provided in the upper lid and has an exhaust hole capable of maintaining an airtight state, and in the treatment tank, wastewater injected from the wastewater injection hole in an airtight state is charged from the gelling agent input hole Gelling without stirring by an agent, and further, in an airtight state, the moisture of the gelled wastewater is reduced by blowing air from the blowing hole to the exhaust hole, and further, the intermediate tank and the processing tank, or A wastewater treatment apparatus, wherein the upper lid and the intermediate tank are configured to be detachable, and are sealed with a sealing plate placed on the removed processing tank or a combination of the processing tank and the intermediate tank.
請求項1または請求項2に記載の廃水処理装置であって、前記密閉板に、流体通過手段を有することを特徴とする廃水処理装置。 The wastewater treatment apparatus according to claim 1 or 2, wherein the sealing plate has a fluid passage means. 請求項1または請求項2に記載の廃水処理装置であって、前記上蓋に、グリコール類を投入する、グリコール投入孔を有することを特徴とする廃水処理装置。 The wastewater treatment apparatus according to claim 1 or 2, further comprising a glycol introduction hole for introducing glycols into the upper lid. 請求項1または請求項2に記載の廃水処理装置であって、前記上蓋に、有機ソーダ塩、消毒剤、香料、油吸着剤のいずれか1つ以上を投入する、添加物投入孔を有することを特徴とする廃水処理装置。
The wastewater treatment apparatus according to claim 1 or 2, wherein the upper lid has an additive charging hole into which any one or more of an organic soda salt, a disinfectant, a fragrance, and an oil adsorbent are charged. Wastewater treatment equipment characterized by.
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