JP2016067979A - Volume reduction processing method for jellyfish waste and volume reduction processing device for jellyfish waste - Google Patents

Volume reduction processing method for jellyfish waste and volume reduction processing device for jellyfish waste Download PDF

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JP2016067979A
JP2016067979A JP2014197805A JP2014197805A JP2016067979A JP 2016067979 A JP2016067979 A JP 2016067979A JP 2014197805 A JP2014197805 A JP 2014197805A JP 2014197805 A JP2014197805 A JP 2014197805A JP 2016067979 A JP2016067979 A JP 2016067979A
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JP6446220B2 (en
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隆志 坂元
Takashi Sakamoto
隆志 坂元
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Electric Power Development Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a volume reduction processing method of jellyfish waste, capable of easily performing volume reduction processing of jellyfish waste, without using a high level processing method in viewpoints of appliance and technique.SOLUTION: A volume reduction processing method of jellyfish waste comprises: a step S1 for performing aeration processing to a jellyfish waste liquid generated from jellyfish waste, thereby decomposing an organic substance included in the jellyfish waste liquid; and a step S2 for stopping the aeration processing, when it is detected that, the organic substance is decomposed from organic nitrogen (O-N) to ammonia nitrogen (NH3-N).SELECTED DRAWING: Figure 2

Description

本発明は、クラゲ等廃棄物の減容化処理方法及びクラゲ等廃棄物の減容化処理装置に関する。   The present invention relates to a volume reduction processing method for waste such as jellyfish and a volume reduction processing apparatus for waste such as jellyfish.

沿岸に設置された発電所や工場では、大量の海水を取水して冷却水として使用している。発電所では、冷却水にクラゲ等の塵芥が混入すると復水器の詰まりが生じ、発電出力が低下する事態や、発電停止とせざるを得ない事態も生ずる場合がある。そのため、発電所や工場では、冷却水の取水口に回転式除塵機を設け、クラゲ等の塵芥を海水から除去して水揚げし塵芥ピットに回収する。また、塵芥ピットにて水切りを行ったクラゲは、全量廃棄物として自治体の処分場へ移送し、焼却処分を行っている。   Power plants and factories installed on the coast take a large amount of seawater and use it as cooling water. In power plants, if dust such as jellyfish is mixed in the cooling water, the condenser may become clogged, resulting in a situation where the power generation output is reduced or the power generation must be stopped. Therefore, in power plants and factories, a rotary dust remover is installed at the intake of cooling water, and dust such as jellyfish is removed from seawater and landed and collected in the dust pit. The jellyfish drained from the garbage pit is transferred to the municipal disposal site as a whole waste for incineration.

この移送や処分には人員及び処分費を要するが、夏季のクラゲの大量発生時においては、多くの処理人員と高額の処分費が必要となるという問題があった。また、廃棄物としてクラゲを受け入れる自治体側としても、短期間にクラゲが大量に発生する事態には対応が困難な場合があった。そのため、クラゲが大量に来襲したときには、クラゲ等廃棄物を一時貯留し、減容化処理する必要があった。   This transfer and disposal requires personnel and disposal costs, but there is a problem that many processing personnel and high disposal costs are required when a large amount of jellyfish occurs in summer. In addition, the local government side that accepts jellyfish as waste sometimes has difficulty in dealing with a large amount of jellyfish in a short period of time. Therefore, when a large amount of jellyfish attacked, it was necessary to temporarily store waste such as jellyfish and reduce the volume.

ところで、クラゲは、成分の大部分(95%以上)が水分であり、水揚げした後に放置すれば数日でクラゲ成分の多くは分解し水分となる。しかしながら、そのクラゲが分解した水分、固形分及び塵芥が溶解もしくは混入している水分(以下、「クラゲ等廃液」という。)中には、高濃度の浮遊粒子状物質(SS)、生物化学的酸素要求量(BOD)、化学的酸素要求量(COD)、窒素成分(有機体窒素(O−N)、アンモニア体窒素(NH−N)、 亜硝酸体窒素(NO−N)、硝酸体窒素(NO−N))が残留することから、これらの成分の処理が必要である。 By the way, most of the components (95% or more) of jellyfish are moisture, and if they are left after landing, most of the jellyfish components decompose and become moisture in a few days. However, in the water in which the jellyfish is decomposed, the solid content, and the water in which the dust is dissolved or mixed (hereinafter referred to as “waste liquid such as jellyfish”), a high concentration of suspended particulate matter (SS), biochemical oxygen demand (BOD), chemical oxygen demand (COD), nitrogen component (organisms nitrogen (O-N), ammonia body nitrogen (NH 3 -N), nitrite body nitrogen (NO 2 -N), nitrate since the body of nitrogen (NO 3 -N)) remains, it is necessary to process these components.

ここで、上記成分の処理方法については、空気曝気処理(主に有機物の生物分解)及びこれに続いて凝集分離処理(主にSS成分の処理)することにより実用化されている例が多く、技術的・経済的に有効な方法であることが知られている。   Here, as for the processing method of the above-mentioned components, there are many examples that have been put into practical use by air aeration processing (mainly biodegradation of organic matter) and subsequent aggregation separation processing (mainly processing of SS component), It is known to be a technically and economically effective method.

また、BOD、CODの低減処理を考慮した方法としては、特許文献1が知られている。この特許文献1には、水揚げされたクラゲを破砕手段にて細片に破砕後に一旦貯蔵ホッパに貯留して、貯留中にクラゲに同搬された貝などの固形物を沈降分離して前記固形物を除去して破砕クラゲを得た後、加圧下で加熱し、その後瞬時に脱圧し膨化処理してクラゲ水を得るとともに、引続きクラゲ水に次亜塩素酸ナトリウムを添加してクラゲ水中に含有されるBOD、COD成分を酸化処理するクラゲ処理方法が開示されている(特許文献1の図1を参照)。   Patent Document 1 is known as a method that takes into account the reduction processing of BOD and COD. In this Patent Document 1, a jellyfish that has been landed is crushed into small pieces by a crushing means, temporarily stored in a storage hopper, and solids such as shellfish carried in the jellyfish during the storage are settled and separated. After removing crushed jellyfish by removing objects, heated under pressure and then depressurized and swollen instantly to obtain jellyfish water, and sodium hypochlorite is subsequently added to jellyfish water and contained in jellyfish water A jellyfish treatment method is disclosed in which the BOD and COD components are oxidized (see FIG. 1 of Patent Document 1).

特開平11−244833号公報Japanese Patent Laid-Open No. 11-244833

しかしながら、特許文献1に開示されたクラゲ処理方法では、次亜塩素酸ナトリウムを添加してクラゲ水中に含有されるBOD、COD成分を酸化処理するために、破砕クラゲを得た後、加圧下で加熱し、その後瞬時に脱圧し膨化処理しており、設備的・技術的に高度な処理が必要となるという課題があった。   However, in the jellyfish treatment method disclosed in Patent Document 1, in order to oxidize BOD and COD components contained in jellyfish water by adding sodium hypochlorite, after obtaining crushed jellyfish, under pressure After heating, the pressure was depressurized and expanded immediately, and there was a problem that advanced treatment was required in terms of equipment and technology.

本発明は、上記事情に鑑みてなされたものであって、設備的・技術的に高度な処理方法を用いることなく、クラゲ等廃棄物を簡便に減容化処理することが可能な、クラゲ等廃棄物の減容化処理方法及びクラゲ等廃棄物の減容化処理装置を提供することを課題とする。   The present invention has been made in view of the above circumstances, and is capable of easily reducing the volume of waste such as jellyfish without using an advanced treatment method in terms of equipment and technology. It is an object of the present invention to provide a waste volume reduction processing method and a waste volume reduction processing apparatus such as a jellyfish.

上記課題を解決するために、本願発明者がクラゲの曝気槽での分解処理過程を詳細に調査した結果、排水中のNの形態が、分解によって有機体窒素(O−N)からアンモニア体窒素(NH−N)へ、さらにアンモニア体窒素(NH−N)から亜硝酸体窒素(NO−N)や硝酸体窒素(NO−N)へと進んでいくことを明らかにした。また、分解によって排水中のNの形態が上記(NO−N)や(NO−N)まで進んでしまうと、排水中のNを除去するために、上記特許文献1に開示された方法や、硝化・脱窒菌等を用いるなどの設備的・技術的に高度な処理が必要となるのに対して、アンモニア体窒素(NH−N)の形態であれば簡便に減容化処理することが可能であることを見出して、本発明を完成させた。さらに、本願発明者は、有機体窒素(O−N)からアンモニア体窒素(NH−N)に分解したことを検出する方法を見出した。 In order to solve the above-mentioned problems, the inventors of the present invention investigated in detail the decomposition process in the jellyfish aeration tank. As a result, the form of N in the wastewater was changed from organic nitrogen (O-N) to ammonia nitrogen by decomposition. It has been clarified that the process proceeds to (NH 3 -N) and further from ammonia nitrogen (NH 3 -N) to nitrite nitrogen (NO 2 -N) and nitrate nitrogen (NO 3 -N). Further, the form of N in the waste water by the decomposition will proceed until the above (NO 2 -N) and (NO 3 -N), in order to remove the N in the waste water, disclosed in Patent Document 1 a method In addition, in the form of ammonia body nitrogen (NH 3 -N), the volume can be easily reduced, whereas advanced treatment is required in terms of equipment and technology such as using nitrification and denitrifying bacteria. We have found that this is possible and have completed the present invention. Furthermore, the present inventors have found a method of detecting that it has exploded from organisms nitrogen (O-N) in ammonia body nitrogen (NH 3 -N).

すなわち、本発明は、以下の構成を有する。
請求項1に記載の発明は、クラゲ等廃棄物を固液分離して廃棄する減容化処理方法であって、クラゲ等廃棄物から生じたクラゲ等廃液を、空気曝気処理することにより、クラゲ等廃液中に含まれる有機物を分解する工程と、前記有機物が有機体窒素(O−N)からアンモニア体窒素(NH−N)に分解したことを検出した際に、前記空気曝気処理を停止する工程と、を含むことを特徴とするクラゲ等廃棄物の減容化処理方法である。
That is, the present invention has the following configuration.
The invention described in claim 1 is a volume reduction treatment method for separating and disposing of wastes such as jellyfish by solid-liquid separation, wherein the jellyfish waste liquid generated from wastes such as jellyfish is subjected to air aeration treatment, thereby and decomposing the organic substances contained in equal liquid waste, when the organic material is detected to be decomposed into ammonia member nitrogen from the organism nitrogen (O-N) (NH 3 -N), stops the air aeration And a process for reducing the volume of waste such as jellyfish.

また、請求項2に記載の発明は、前記分解したことを検出する方法が、前記クラゲ等廃液のORPを計測し、前記ORPの値の正負が逆転することにより検出する方法であることを特徴とする請求項1に記載のクラゲ等廃棄物の減容化処理方法である。   The invention according to claim 2 is characterized in that the method of detecting the decomposition is a method of detecting the ORP of the waste liquid such as the jellyfish and detecting it by reversing the sign of the ORP value. The method for reducing the volume of waste such as jellyfish according to claim 1.

また、請求項3に記載の発明は、前記分解したことを検出する方法が、前記クラゲ等廃液の色相変化により検出する方法であることを特徴とする請求項1のクラゲ等廃棄物の減容化処理方法である。   The invention according to claim 3 is the volume reduction of waste such as jellyfish according to claim 1, wherein the method of detecting the decomposition is a method of detecting by a hue change of the waste liquid such as jellyfish. This is a processing method.

また、請求項4に記載の発明は、前記空気曝気処理の停止後に、水質分析を行う、第一の水質分析工程と、前記第一の水質分析工程後に、前記クラゲ等廃液中に凝集沈殿用薬剤を添加し、その後、曝気処理、撹拌処理及び静置処理を行うことにより、前記クラゲ等廃液を上澄み水と汚泥残渣に固液分離させる、凝集沈殿工程と、前記凝集沈殿工程後に、前記上澄み水に塩素剤を添加し、撹拌する、塩素処理工程と、前記塩素処理工程後に、前記上澄み水のORPの測定を行い、所定の値以上であることを確認した後、水質分析を行う、第二の水質分析工程と、前記第二の水質分析工程後に、所定の基準を満たした前記上澄み水を外部に放流する、塩素処理後排水の移送工程と、前記汚泥残渣を外部に排出する、汚泥残渣の処理工程と、を含むことを特徴とする請求項1乃至3のいずれか一項に記載のクラゲ等廃棄物の減容化方法である。   In addition, the invention according to claim 4 is a first water quality analysis step for performing water quality analysis after stopping the air aeration process, and after the first water quality analysis step, Addition of chemical, and then aeration treatment, stirring treatment and stationary treatment to separate the liquid waste such as jellyfish into supernatant water and sludge residue, coagulation precipitation step, and after the coagulation precipitation step, the supernatant Adding chlorine agent to water, stirring, chlorination step, and after the chlorination step, measure the ORP of the supernatant water, confirm that it is above a predetermined value, and then perform water quality analysis, After the second water quality analysis step and the second water quality analysis step, the supernatant water satisfying a predetermined standard is discharged to the outside, the chlorination drainage transfer step, and the sludge residue is discharged to the outside. And a residue processing step. A volume reduction process of jellyfish such waste according to any one of claims 1 to 3, wherein the door.

また、請求項5に記載の発明は、全ての工程を1つの貯留槽内で行うことを特徴とする請求項1乃至4のいずれか一項に記載のクラゲ等廃棄物の減容化処理方法である。   The invention according to claim 5 is characterized in that all the steps are performed in one storage tank, and the volume reduction processing method for waste such as jellyfish according to any one of claims 1 to 4 It is.

また、請求項6に記載の発明は、前記凝集沈殿工程後に、貯留槽内の前記クラゲ等廃液を、別の処理容器に分取して、前記塩素処理工程、前記第二の水質分析工程、及び前記塩素処理後排水の移送工程を行うことを特徴とする請求項4に記載のクラゲ等廃棄物の減容化処理方法である。   Moreover, invention of Claim 6 fractionates the waste liquids, such as the jellyfish in a storage tank after the said coagulation sedimentation process, to another processing container, The said chlorine treatment process, said 2nd water quality analysis process, 5. The method for reducing the volume of waste such as jellyfish according to claim 4, wherein a transfer step of the waste water after chlorination is performed.

また、請求項7に記載の発明は、海水取水ライン(図示略)から除去・回収したクラゲ等廃棄物を一時貯留する貯留槽と、前記貯留槽内のクラゲ等廃液を空気曝気する空気曝気装置と、前記クラゲ等廃液中の有機体窒素(O−N)がアンモニア体窒素(NH−N)まで分解したことを検出する第一の水質分析装置と、を備えるクラゲ等廃棄物の減容化処理装置である。 The invention according to claim 7 is a storage tank for temporarily storing waste such as jellyfish removed / recovered from a seawater intake line (not shown), and an air aeration apparatus for aeration of waste liquid such as jellyfish in the storage tank. And a first water quality analyzer for detecting that organic nitrogen (ON) in the waste liquid such as jellyfish has decomposed to ammonia nitrogen (NH 3 -N), volume reduction of waste such as jellyfish It is a chemical processing apparatus.

また、請求項8に記載の発明は、前記第一の水質分析装置が、ORP計測器を備える請求項7に記載のクラゲ等廃棄物の減容化処理装置である。   The invention described in claim 8 is the volume reduction processing apparatus for waste such as jellyfish according to claim 7, wherein the first water quality analyzer includes an ORP measuring instrument.

また、請求項9に記載の発明は、前記第一の水質分析装置が、色相変化検出器を備える請求項7に記載のクラゲ等廃棄物の減容化処理装置である。   The invention described in claim 9 is the volume reduction processing apparatus for waste such as jellyfish according to claim 7, wherein the first water quality analyzer includes a hue change detector.

また、請求項10に記載の発明は、前記貯留槽内を撹拌する撹拌装置と、前記貯留槽内に凝集沈殿のための薬剤を投入する第一の薬剤投入装置と、前記貯留槽内に塩素等の薬剤を投入する第二の薬剤投入装置と、前記塩素等の薬剤投入後の前記クラゲ等廃液のORPを計測し、前記ORPが所定の値以上に達したら、前記クラゲ等廃液の水質を分析する第二の水質分析装置と、前記貯留槽の外に前記クラゲ等廃液の上澄み水を移送する排水移送装置と、前記貯留槽の底部の汚泥残渣を前記貯留槽の外に排出する汚泥残渣排出装置と、を備える請求項7乃至9のいずれか一項に記載のクラゲ等廃棄物の減容化処理装置である。   The invention described in claim 10 includes a stirrer that stirs the inside of the storage tank, a first chemical input apparatus that inputs a chemical for coagulation precipitation in the storage tank, and chlorine in the storage tank. Measure the ORP of the waste liquid such as jellyfish after the addition of the chemical such as chlorine, and when the ORP reaches a predetermined value or more, the water quality of the waste liquid such as the jellyfish is measured. A second water quality analysis device to analyze, a drainage transfer device for transferring the supernatant of waste liquid such as jellyfish to the outside of the storage tank, and a sludge residue for discharging the sludge residue at the bottom of the storage tank to the outside of the storage tank It is a volume reduction processing apparatus of waste materials, such as a jellyfish, as described in any one of Claims 7 thru | or 9 provided with a discharge device.

また、請求項11に記載の発明は、前記貯留槽内を撹拌する撹拌装置と、前記貯留槽内に凝集沈殿のための薬剤を投入する第一の薬剤投入装置と、前記凝集沈殿のための薬剤投入後の撹拌、静置処理した後の前記貯留槽内の上澄み水を分取して貯留する上澄み水処理容器と、前記上澄み水処理容器に塩素等の薬剤を投入する第二の薬剤投入装置と、前記上澄み水処理容器内の前記上澄み水のORPを計測し、前記ORPが所定の値以上に達したら、前記上澄み水の水質を分析する第二の水質分析装置と、前記上澄み水処理容器の外に前記上澄み水を移送する排水移送装置と、前記貯留槽の底部の汚泥残渣を前記貯留槽の外に排出する汚泥残渣排出装置と、を備える請求項7乃至9のいずれか一項に記載のクラゲ等廃棄物の減容化処理装置である。   The invention described in claim 11 is a stirring device that stirs the inside of the storage tank, a first chemical input device that inputs a chemical for coagulation precipitation in the storage tank, and the coagulation sedimentation Stirring after the addition of the chemical, the supernatant water treatment container for separating and storing the supernatant water in the storage tank after the stationary treatment, and the second chemical introduction for introducing a chemical such as chlorine into the supernatant water treatment container An apparatus, a second water quality analyzer that measures the ORP of the supernatant water in the supernatant water treatment container and analyzes the quality of the supernatant water when the ORP reaches a predetermined value or more, and the supernatant water treatment The drainage transfer device that transfers the supernatant water to the outside of the container, and the sludge residue discharge device that discharges the sludge residue at the bottom of the storage tank to the outside of the storage tank. The volume reduction processing equipment for jellyfish .

本発明のクラゲ等廃棄物の減容化処理方法は、クラゲ等廃棄物から生じたクラゲ等廃液を空気曝気処理することにより、クラゲ等廃液中に含まれる有機物を分解する工程と、上記有機物が有機体窒素(O−N)からアンモニア体窒素(NH−N)に分解したことを検出した際に空気曝気処理を停止する工程と、を含む構成となっており、クラゲ等廃棄物を、設備的・技術的に高度な処理方法を用いることなく、簡便に減容化処理することができる。 The method for reducing the volume of waste jellyfish and the like according to the present invention includes a step of decomposing organic matter contained in the jellyfish waste liquid by subjecting the jellyfish waste liquid generated from the jellyfish waste to air aeration treatment, and And a step of stopping the air aeration process when it is detected that organic nitrogen (O—N) has been decomposed into ammonia nitrogen (NH 3 —N), and waste such as jellyfish, The volume reduction treatment can be easily performed without using an advanced treatment method in terms of equipment and technology.

本発明のクラゲ等廃棄物の減容化処理装置は、海水取水ライン(図示略)から除去・回収したクラゲ等廃棄物を一時貯留する貯留槽と、貯留槽内のクラゲ等廃液を空気曝気する空気曝気装置と、クラゲ等廃液中の有機体窒素(O−N)がアンモニア体窒素(NH−N)まで分解したことを検出する第一の水質分析装置と、を備える構成となっており、第一の水質分析装置により、クラゲ等廃棄物中に含まれる有機物が、有機体窒素(O−N)からアンモニア体窒素(NH−N)に分解したことを検出することで、クラゲ等廃棄物を、設備的・技術的に高度な処理方法を用いることなく、簡便に減容化処理することができる。 The volume reduction processing apparatus for wastes such as jellyfish according to the present invention aerizes a jellyfish waste such as jellyfish removed and recovered from a seawater intake line (not shown) and a jellyfish waste liquid in the storage tank by aeration. and air aerator has a structure comprising a first water analysis device for detecting that the organisms nitrogen jellyfish such as the effluent (O-N) was decomposed to ammonia body nitrogen (NH 3 -N), the By detecting that the organic matter contained in the waste such as jellyfish has been decomposed from organic nitrogen (ON) to ammonia nitrogen (NH 3 -N) by the first water quality analyzer, jellyfish etc. Waste can be easily reduced in volume without using an advanced treatment method in terms of equipment and technology.

本発明を適用した一実施形態であるクラゲ等廃棄物の減容化処理装置の構成を示す系統図である。It is a systematic diagram which shows the structure of the volume reduction processing apparatus of wastes, such as a jellyfish which is one Embodiment to which this invention is applied. 本発明を適用した一実施形態であるクラゲ等廃棄物の減容化処理装置による処理方法を説明するためのフローチャートである。It is a flowchart for demonstrating the processing method by the volume reduction processing apparatus of wastes, such as a jellyfish which is one Embodiment to which this invention is applied. 本発明を適用した他の実施形態であるクラゲ等廃棄物の減容化処理装置の構成を示す系統図である。It is a systematic diagram which shows the structure of the volume reduction processing apparatus of wastes, such as a jellyfish which is other embodiment to which this invention is applied.

以下、本発明に係るクラゲ等廃棄物の減容化処理装置及びクラゲ等廃棄物の減容化処理方法について、図面を用いて詳細に説明する。なお、以下の説明で用いる図面は、特徴をわかりやすくするために、便宜上特徴となる部分を拡大して示している場合があり、各構成要素の寸法比率などが実際と同じであるとは限らない。   Hereinafter, a volume reduction processing apparatus for jellyfish waste and a method for volume reduction of jellyfish waste according to the present invention will be described in detail with reference to the drawings. In addition, in the drawings used in the following description, in order to make the features easy to understand, there are cases where the portions that become the features are enlarged for the sake of convenience, and the dimensional ratios of the respective components are not always the same as the actual ones. Absent.

<クラゲ等廃棄物の減容化処理装置>
先ず、本発明を適用した一実施形態であるクラゲ等廃棄物の減容化処理装置1について説明する。図1は、本発明を適用した一実施形態であるクラゲ等廃棄物の減容化処理装置1の構成を示す系統図である。
図1に示すように、本実施形態のクラゲ等廃棄物の減容化処理装置1は、塵芥ピット2と、貯留槽3と、空気曝気装置4と、第一の水質分析装置5と、第一の薬剤投入装置6と、撹拌装置7と、第二の薬剤投入装置8と、第二の水質分析装置9と、排水移送装置10と、汚泥残渣排出装置11とを備えて、概略構成されている。
<Jellyfish and other waste volume reduction processing equipment>
First, a volume reduction processing apparatus 1 for waste such as jellyfish, which is an embodiment to which the present invention is applied, will be described. FIG. 1 is a system diagram showing the configuration of a waste volume reduction processing apparatus 1 that is an embodiment to which the present invention is applied.
As shown in FIG. 1, the volume reduction processing apparatus 1 such as a jellyfish according to the present embodiment includes a dust pit 2, a storage tank 3, an air aeration apparatus 4, a first water quality analysis apparatus 5, and a first The apparatus is roughly configured to include one drug charging device 6, a stirring device 7, a second drug charging device 8, a second water quality analyzer 9, a drainage transfer device 10, and a sludge residue discharging device 11. ing.

このクラゲ等廃棄物の減容化処理装置1は、海水取水ライン(図示略)から除去・回収したクラゲ等廃棄物を一時貯留し、後述する減容化処理方法を実行した後、処理後の排水を放流又は排水処理装置に移送し、減容化した汚泥残渣を処分場へ搬出するための装置である。   This jellyfish waste reduction treatment apparatus 1 temporarily stores jellyfish waste removed and collected from a seawater intake line (not shown), executes a volume reduction treatment method described later, It is a device for transferring wastewater to a discharge or wastewater treatment device and carrying out the reduced sludge residue to a disposal site.

塵芥ピット2は、海水取水ライン(図示略)から除去・回収したクラゲ等廃棄物を貯留するピットで、通常、海水取水ライン(図示略)の近傍に常設する。塵芥ピット2の容積は、発電所等が位置する周辺海域の状況により異なるが、年間に海水取水ライン(図示略)から回収される廃棄物の量に応じて決定する。設備費用や処理効率の点から、年間を通じたクラゲ等廃棄物の回収量の平均値程度のものを選択することが好ましい。クラゲ等廃棄物の量が増加し、塵芥ピットの容量を超える場合には、貯留槽3以降を仮設にて増設し、オーバーフロー分を処理するという方法もとりうる。   The dust pit 2 is a pit for storing waste such as jellyfish removed and collected from a seawater intake line (not shown), and is usually permanently installed in the vicinity of the seawater intake line (not shown). The volume of the dust pit 2 is determined according to the amount of waste collected from a seawater intake line (not shown) annually, although it varies depending on the surrounding sea area where the power plant is located. From the viewpoint of equipment cost and processing efficiency, it is preferable to select one having an average value of the amount of waste recovered such as jellyfish throughout the year. If the amount of waste such as jellyfish increases and exceeds the capacity of the dust pit, a method of temporarily adding the storage tank 3 or later and treating the overflow can be taken.

貯留槽3は、海水取水ライン(図示略)から塵芥ピット2に貯留したクラゲ等廃棄物を、塵芥ピット2から移送して一時貯留するための容器である。貯留槽3内で、一連の減容化処理工程が行われる。貯留槽3の材質は、特に限定されるものではないが、具体的には、例えば、鋼板やFRP等を用いることができる。これらの材質の中でも、鋼板等、成分中に鉄を含む材質を用いることが好ましい。   The storage tank 3 is a container for transferring and temporarily storing waste such as jellyfish stored in the refuse pit 2 from a seawater intake line (not shown). A series of volume reduction processing steps are performed in the storage tank 3. Although the material of the storage tank 3 is not specifically limited, Specifically, a steel plate, FRP, etc. can be used, for example. Among these materials, it is preferable to use a material containing iron in the component, such as a steel plate.

貯留槽3の容積としては、特に限定されるものではなく、排水の処理方法、設備費用や処理効率等を勘案し、任意の容積とする事が出来る。本願発明者の行った実績例では、2m3のポリ容器や20〜30m3の鋼板製容器を用いている。 The volume of the storage tank 3 is not particularly limited, and can be set to an arbitrary volume in consideration of the wastewater treatment method, facility costs, treatment efficiency, and the like. In the examples of achievements made by the present inventor, a 2 m 3 plastic container or a 20 to 30 m 3 steel plate container is used.

空気曝気装置4は、貯留槽3内のクラゲ等廃液を空気曝気するための装置であり、空気圧縮機、配管、空気噴出孔等から構成される。空気曝気装置4の空気噴出孔部位は、貯留槽3の底部又は底部付近に設けられている。   The air aeration apparatus 4 is an apparatus for aeration of waste liquid such as jellyfish in the storage tank 3, and includes an air compressor, piping, air ejection holes, and the like. The air ejection hole part of the air aeration device 4 is provided at or near the bottom of the storage tank 3.

第一の水質分析装置5は、貯留槽内のクラゲ等廃液中の有機体窒素(O−N)がアンモニア体窒素(NH−N)まで分解したことを検出し、その後、BODやCOD等の水質を分析するための装置であり、サンプリング配管、サンプリング装置等から構成される。第一の水質分析装置5は、検出のしやすさの点から、貯留槽3の近傍に設けるのが好ましい。第一の水質分析装置5は、Nの形態の変化を検出し、塩素等の薬剤を投入するタイミングを判断する。 The first water quality analyzer 5 detects that organic nitrogen (ON) in waste liquid such as jellyfish in the storage tank has decomposed to ammonia nitrogen (NH 3 -N), and then BOD, COD, etc. This is a device for analyzing the quality of water, and is composed of a sampling pipe, a sampling device and the like. The first water quality analyzer 5 is preferably provided in the vicinity of the storage tank 3 in terms of ease of detection. The first water quality analyzer 5 detects a change in the form of N, and determines the timing for introducing a chemical such as chlorine.

Nの形態変化の検出方法によっては、第一の水質分析装置5に、酸化還元電位(Oxidation−Reduction Potential;以下、単に「ORP」と記載する)計測器や色相変化検出器等を備えることができる。   Depending on the method for detecting the change in the form of N, the first water quality analyzer 5 may be provided with a redox potential (Oxidation-Reduction Potential; hereinafter simply referred to as “ORP”) measuring instrument, a hue change detector, and the like. it can.

第一の薬剤投入装置6は、凝集沈殿のための薬剤を必要に応じて貯留槽3内に投入するための装置である。薬剤投入の管理を容易にするため、通常は貯留槽3の近傍に設ける。貯留槽3内に第一の薬剤を投入することで、貯留槽3内の浮遊粒子状物質(SS)を凝集沈殿させる。   The 1st chemical | medical agent input apparatus 6 is an apparatus for inject | pouring the chemical | medical agent for aggregation precipitation into the storage tank 3 as needed. Usually, it is provided in the vicinity of the storage tank 3 in order to facilitate the administration of the medicine. By putting the first chemical into the storage tank 3, the suspended particulate matter (SS) in the storage tank 3 is agglomerated and precipitated.

撹拌装置7は、貯留槽3内を撹拌するために、撹拌用プロペラは貯留槽3の内部に設けられている。この撹拌装置7によって貯留槽3内のクラゲ等廃液を撹拌することにより、第一の薬剤を貯留槽3内のクラゲ等廃液中に分散させることができる。   The stirring device 7 has a stirring propeller provided inside the storage tank 3 in order to stir the inside of the storage tank 3. By stirring the jellyfish waste liquid in the storage tank 3 by the stirring device 7, the first chemical can be dispersed in the jellyfish waste liquid in the storage tank 3.

第二の薬剤投入装置8は、上澄み水中に含まれるN分を除去するため、例えば、塩素等の第二の薬剤を、必要に応じて貯留槽3内に投入するための装置である。また、第二の薬剤投入装置8は、薬剤投入の管理を容易にするため、通常は貯留槽3の近傍に設ける。この第二の薬剤投入装置8によって、貯留槽3内に薬剤を投入することで、上澄み水中に含まれるNH−NをNガスまで分解し、除去することができる。 The 2nd chemical | medical agent input apparatus 8 is an apparatus for injecting | throwing-in 2nd chemical | medical agents, such as chlorine, in the storage tank 3 as needed, in order to remove N content contained in supernatant water. Moreover, the 2nd chemical | medical agent injection apparatus 8 is normally provided in the vicinity of the storage tank 3, in order to make management of chemical | medical agent injection easy. By introducing the chemical into the storage tank 3 by the second chemical injection device 8, NH 3 —N contained in the supernatant water can be decomposed and removed to N 2 gas.

第二の水質分析装置9は、第二の薬剤投入後の上澄み水中のORP値を計測し、ORP値が所定の値以上に達した際に、上澄み水の水質を分析するための装置である。また、第二の水質分析装置9は、貯留槽3の近傍に設けられている。この第二の水質分析装置9によって、上澄み水の水質を分析することで、水質が放流基準や、排水処理装置への移送基準を満足していることを確認することができる。   The second water quality analyzer 9 is an apparatus for measuring the ORP value in the supernatant water after the second chemical is charged and analyzing the quality of the supernatant water when the ORP value reaches a predetermined value or more. . The second water quality analyzer 9 is provided in the vicinity of the storage tank 3. By analyzing the water quality of the supernatant water with the second water quality analyzer 9, it can be confirmed that the water quality satisfies the discharge standard and the transfer standard to the wastewater treatment apparatus.

なお、第一の水質分析装置5にORP計測器が備えられている場合は、第二の水質分析装置9を省略することができる。   In addition, when the 1st water quality analyzer 5 is equipped with the ORP measuring device, the 2nd water quality analyzer 9 can be abbreviate | omitted.

排水移送装置10は、外部へ放流又は排水処理装置へ移送するためのポンプ、配管等から構成されており、排水移送状況の管理を容易にするため、通常は貯留槽3の近傍に設ける。排水移送装置10により、所定の基準を満たした上澄み水を、排水として放流又は排水処理装置へ移送することで、上澄み水を減容化処理装置1の外部へ移送することができる。   The drainage transfer device 10 is composed of a pump, piping and the like for discharging to the outside or transferring to a wastewater treatment device, and is usually provided in the vicinity of the storage tank 3 in order to facilitate management of the wastewater transfer status. The supernatant water that satisfies a predetermined standard is discharged as waste water or transferred to a waste water treatment device by the waste water transfer device 10, so that the supernatant water can be transferred to the outside of the volume reduction treatment device 1.

汚泥残渣排出装置11は、貯留槽3内に残った汚泥残渣を排出するための配管等から構成されており、貯留槽3の下部又は底部に設けられている。汚泥残渣排出装置11により、減容化処理後に、貯留槽3内の底部に残った汚泥残渣を、貯留槽3の外に排出することができる。排出先としては、特に限定されるものではないが、具体的には、例えば、トラックやバキューム車等がある。その後、排出された汚泥残渣を外部の処分場へ移送する。   The sludge residue discharging apparatus 11 is composed of a pipe or the like for discharging the sludge residue remaining in the storage tank 3, and is provided at the bottom or bottom of the storage tank 3. The sludge residue discharging device 11 can discharge the sludge residue remaining at the bottom in the storage tank 3 to the outside of the storage tank 3 after the volume reduction treatment. The discharge destination is not particularly limited. Specifically, for example, there are a truck, a vacuum vehicle, and the like. Thereafter, the discharged sludge residue is transferred to an external disposal site.

<クラゲ等廃棄物の減容化処理方法>
次に、上述したクラゲ等廃棄物の減容化処理装置1を用いた、本実施形態のクラゲ廃棄物等の減容化処理方法を説明する。図2は、本発明を適用した一実施形態であるクラゲ等廃棄物の減容化処理装置1による処理方法を説明するためのフローチャートを示す。以下、各工程について、詳細に説明する。
<Method for volume reduction of jellyfish waste>
Next, a volume reduction processing method for jellyfish waste and the like according to this embodiment using the above-described volume reduction processing apparatus 1 for jellyfish and the like will be described. FIG. 2 is a flowchart for explaining a processing method by the volume reduction processing apparatus 1 for waste such as jellyfish, which is an embodiment to which the present invention is applied. Hereinafter, each step will be described in detail.

図2に示すように、本実施形態のクラゲ等廃棄物の減容化処理装置1を用いた、減容化処理方法は、処理の開始から順に、有機物分解工程S1と、第一の水質分析工程S2と、凝集沈殿工程S3と、塩素処理工程S4と、第二の水質分析工程S5と、塩素処理後排水の移送工程S6と、貯留槽内汚泥残渣の処理工程S7とを有する。   As shown in FIG. 2, the volume reduction processing method using the waste volume reduction processing apparatus 1 of the jellyfish and the like according to the present embodiment includes the organic matter decomposition step S1 and the first water quality analysis in order from the start of the processing. It has process S2, coagulation sedimentation process S3, chlorination process S4, 2nd water quality analysis process S5, transfer process S6 of drainage after chlorination, and process S7 of sludge residue in a storage tank.

先ず、有機物分解工程S1では、海水取水ライン(図示略)から除去・回収したクラゲ等廃棄物を貯留槽3内に搬入する。搬入したクラゲ等廃棄物から生じたクラゲ等廃液を、空気曝気処理装置4を用いて貯留槽3内で空気曝気処理することにより、クラゲ等廃液中に含まれる有機物を分解する。   First, in the organic matter decomposition step S1, waste such as jellyfish removed and collected from a seawater intake line (not shown) is carried into the storage tank 3. The jellyfish waste liquid generated from the carried jellyfish waste is subjected to an air aeration treatment in the storage tank 3 using the air aeration treatment device 4 to decompose organic substances contained in the jellyfish waste liquid.

クラゲ等廃棄物の搬入方法は、特に限定されないが、具体的には,例えば、車両による輸送、ホースや配管による輸送等がある。
空気曝気処理は、本願発明者の実績例としては、20〜30m3貯槽を用いた場合に、100L/min程度の曝気にて5日間程度で実施している。
The method for carrying in waste such as jellyfish is not particularly limited, and specific examples include transportation by vehicle and transportation by a hose or piping.
The air aeration process is carried out in about 5 days with aeration of about 100 L / min when a 20-30 m 3 storage tank is used as an example of the results of the present inventors.

第一の水質分析工程S2では、第一の水質分析装置5を用いて貯留槽3内の水質の分析を行う。この水質分析により、貯留槽3内のクラゲ等廃液中に含まれる有機物が、O−NからNH−Nに分解したことを検出した際に、空気曝気処理を停止し、水質分析を行う。水質分析の結果、水質が判断基準を満足している場合は凝集沈殿工程へ進む。一方、水質が判断基準を満足していない場合は、再度、空気曝気処理を行う。 In the first water quality analysis step S <b> 2, the water quality in the storage tank 3 is analyzed using the first water quality analyzer 5. When it is detected by this water quality analysis that organic substances contained in the waste liquid such as jellyfish in the storage tank 3 are decomposed from ON to NH 3 -N, the air aeration process is stopped and the water quality analysis is performed. As a result of water quality analysis, if the water quality satisfies the criteria, the process proceeds to the coagulation sedimentation process. On the other hand, if the water quality does not satisfy the criteria, the air aeration process is performed again.

第一の水質分析工程S2において、貯留槽3内のクラゲ等廃液中のO−NがNH−Nまで分解したことを検出する方法としては、貯留槽3内のクラゲ等廃液のORPを計測し、ORPの値の正負が逆転することにより検出する方法をとることができる。 In the first water quality analysis step S2, as a method for detecting that the ON-N in the waste liquid such as jellyfish in the storage tank 3 has decomposed to NH 3 -N, the ORP of the waste liquid such as jellyfish in the storage tank 3 is measured. In addition, it is possible to take a method of detecting by reversing the sign of the ORP value.

また、クラゲ等廃液の色相変化(例えば、黒色系から茶色系へ変化)により検出する方法をとることもできる。クラゲ等廃液の色相変化を明確にするためには、例えば鉄分を含む薬剤(例えば硫酸第一鉄)を添加することが有効である。クラゲ等廃液中に鉄分が存在する場合は、色相は黒色系から濃い茶色系、濃い茶色系から茶色系へと変化するので、クラゲ等廃液の色相が茶色系になったことを検出してO−NがNH−Nまで分解したことを検出することができる。なお、貯留槽3に鉄製容器を用いた場合は、鉄分を含む薬剤を添加することが不要となる場合がある。 Moreover, the detection method can also be taken by changing the hue of waste liquid such as jellyfish (for example, changing from black to brown). In order to clarify the hue change of the waste liquid such as jellyfish, it is effective to add a chemical containing iron (for example, ferrous sulfate). When iron is present in the jellyfish waste liquid, the hue changes from black to dark brown, and from dark brown to brown, so it is detected that the jellyfish waste liquid has turned brown. it is possible to detect that the -N was decomposed to NH 3 -N. In addition, when an iron container is used for the storage tank 3, it may be unnecessary to add a chemical containing iron.

水質の判断基準の例としては、特に限定されないが、具体的には、例えば、COD 100ppm以下(目標:50ppm以下)等がある。   Examples of water quality criteria are not particularly limited, but specifically include, for example, COD of 100 ppm or less (target: 50 ppm or less).

凝集沈殿工程S3では、第一の薬剤投入装置6を用いて貯留槽3内に凝集沈殿用薬剤を添加し、所定の曝気・撹拌処理及び静置処理を行う。凝集沈殿剤を添加することにより、クラゲ等廃液を上澄み水と汚泥残渣に固液分離することができる。   In the coagulation sedimentation step S3, the coagulation sedimentation chemical is added into the storage tank 3 using the first chemical injection device 6, and predetermined aeration / stirring treatment and stationary treatment are performed. By adding a coagulating precipitant, a waste liquid such as jellyfish can be solid-liquid separated into supernatant water and sludge residue.

薬剤の量および撹拌・静置時間は、第一の水質分析工程S2で行った水質分析結果を参考に調整する。撹拌・静置時間は、特に限定されないが、具体的には、例えば、空気曝気による攪拌の場合、攪拌を1時間、空気量を20L/min程度に減じた緩速空気曝気処理を30分実施し、一晩静置することが好ましい。   The amount of the drug and the stirring / standing time are adjusted with reference to the water quality analysis result performed in the first water quality analysis step S2. The stirring and standing time is not particularly limited. Specifically, for example, in the case of stirring by air aeration, stirring is performed for 1 hour, and the slow air aeration process with the air amount reduced to about 20 L / min is performed for 30 minutes. It is preferable to leave it overnight.

凝集沈殿用薬剤としては、特に限定されないが、具体的には、例えば、ポリ塩化アルミニウム(PAC)原液(JIS K1475−96 濃度10.0〜11.0%)、クリフロック(PA−331)溶液(脱硫排水処理Se除去装置溶解槽より分取:0.2%)、消石灰(Ca(OH))粉末(全リン(T−P)の量が多い場合にのみ使用)等を用いることができる。 Although it does not specifically limit as a chemical | medical agent for coagulation | solidification precipitation, Specifically, for example, polyaluminum chloride (PAC) stock solution (JIS K1475-96 density | concentration 10.0-11.0%), cliff lock (PA-331) solution, for example (Separation from desulfurization wastewater treatment Se removal device dissolution tank: 0.2%), using slaked lime (Ca (OH) 2 ) powder (used only when the amount of total phosphorus (TP) is large), etc. it can.

塩素処理工程S4では、固液分離が正常に行われていることを目視で貯留槽3内を確認した後、上澄み水に塩素剤を添加し、撹拌する。   In the chlorination process S4, after the inside of the storage tank 3 is visually confirmed that solid-liquid separation is normally performed, a chlorinating agent is added to the supernatant water and stirred.

塩素剤としては、特に限定されないが、具体的には、例えば、次亜塩素酸ナトリウム(有効塩素:12%以上)を使用することができる。次亜塩素酸ナトリウムの添加により、アンモニア等のガスが発生するため、添加後の容器の密閉は避ける。   Although it does not specifically limit as a chlorine agent, Specifically, a sodium hypochlorite (effective chlorine: 12% or more) can be used, for example. Since the addition of sodium hypochlorite generates ammonia and other gases, avoid sealing the container after the addition.

撹拌は、薬剤の混合及び反応の促進を目的としているため、可能な限り実施することが望ましい。しかしながら、例えば、貯留槽3内の汚泥残渣量が多い、等の、連続的な撹拌が困難な場合は、あらかじめ薬剤を容器に入れた後に、上澄み水を注入したり、反応時間を長くとる等をしたりすることで、反応が十分に行われた後に処理される様に配慮する。   Stirring is performed as much as possible because it aims at mixing the drug and promoting the reaction. However, for example, when continuous agitation is difficult, such as when the amount of sludge residue in the storage tank 3 is large, the supernatant is injected after the drug is put in the container in advance, or the reaction time is increased. To ensure that the reaction is processed after the reaction has been sufficiently performed.

撹拌条件としては、特に限定されないが、具体的には、例えば、連続撹拌を3時間程度行ったり、間欠撹拌を一晩程度行ったりすること等により行う。   Stirring conditions are not particularly limited. Specifically, for example, continuous stirring is performed for about 3 hours or intermittent stirring is performed for about one night.

第二の水質分析工程S5では、塩素処理が十分に行われた後、第二の水質分析装置9を用いて処理水のORPの測定を行い、所定の値以上であることを確認した後、水質分析を行う。ORPの所定の値としては800mV以上であることが好ましい。ORPが規定値まで上昇しない場合は、塩素を追加する。一方、ORP値が規定値まで上昇したことを確認した場合は、貯留槽3内の水質が判断基準を満足していることを確認する。なお、水質が判断基準を満足していない場合には、薬剤の追加を行う。   In the second water quality analysis step S5, after the chlorination is sufficiently performed, the ORP of the treated water is measured using the second water quality analyzer 9, and after confirming that it is a predetermined value or more, Perform water quality analysis. The predetermined value of ORP is preferably 800 mV or more. If the ORP does not rise to the specified value, add chlorine. On the other hand, when it is confirmed that the ORP value has increased to the specified value, it is confirmed that the water quality in the storage tank 3 satisfies the judgment standard. If the water quality does not satisfy the criteria, a drug is added.

水質の判断基準としては、特に限定されないが、具体的には、例えば、CODが160mg/L以下であること、T−Nが120mg/L以下であること、T−Pが16mg/L以下であること、ORPが800mV以上(目標:900mV以上)であること、色相が透明(著しい濁りなどがないこと)であること等がある。   The criteria for determining water quality are not particularly limited. Specifically, for example, COD is 160 mg / L or less, TN is 120 mg / L or less, and TP is 16 mg / L or less. In some cases, the ORP is 800 mV or more (target: 900 mV or more), the hue is transparent (no significant turbidity, etc.), and the like.

塩素処理後排水の移送工程S6では、水質が所定の基準を満たす貯留槽3内の上澄み水を、排水移送装置10によって、そのまま排水として放流又は排水処理装置(図示略)へと移送する。   In the chlorination-treated wastewater transfer step S <b> 6, the supernatant water in the storage tank 3 whose water quality satisfies a predetermined standard is directly discharged as wastewater or transferred to a wastewater treatment device (not shown) by the wastewater transfer device 10.

貯留槽内残渣の処理工程S7では、凝集沈殿工程S3により貯留槽3内に残った汚泥残渣を、汚泥残渣排出装置11によって外部に排出する。   In the processing step S7 for residues in the storage tank, the sludge residue remaining in the storage tank 3 in the coagulation sedimentation process S3 is discharged to the outside by the sludge residue discharging device 11.

以上説明したように、本実施形態のクラゲ等廃棄物の減容化処理装置1によれば、第一の水質分析装置5がORP計測器を備えることにより、貯留槽3内のクラゲ等廃液のORPを計測し、ORP値の正負が逆転することを検出することができる。これによって、クラゲ等廃液中の有機体窒素(O−N)がアンモニア体窒素(NH−N)まで分解したことを定量的な手法によって正確に検出することができる。 As described above, according to the volume reduction processing device 1 for waste such as jellyfish of the present embodiment, the first water quality analyzer 5 includes the ORP measuring instrument, so that the waste liquid such as jellyfish in the storage tank 3 can be obtained. It is possible to measure the ORP and detect that the polarity of the ORP value is reversed. Thereby, it can be accurately detected by a quantitative technique that organic nitrogen (ON) in waste liquid such as jellyfish is decomposed to ammonia nitrogen (NH 3 -N).

また、第一の水質分析装置5が、色相変化検出器を備えている場合には、貯留槽3内のクラゲ等廃液の色相変化を検出し、クラゲ等廃液中の有機体窒素(O−N)がアンモニア体窒素(NH−N)まで分解したことを簡易的な手法により容易に分析を検出することができる。 Further, when the first water quality analyzer 5 includes a hue change detector, the hue change of the waste liquid such as jellyfish in the storage tank 3 is detected, and organic nitrogen (O-N in the waste liquid such as jellyfish is detected. ) Is decomposed to ammonia nitrogen (NH 3 —N), the analysis can be easily detected by a simple technique.

さらに、本実施形態のクラゲ等廃棄物の減容化処理装置1によれば、第一の薬剤投入装置6と、撹拌装置7と、第二の薬剤投入装置8と、第二の水質分析装置9と、排水移送装置10と、汚泥残渣排出装置11とを備えているため、上澄み水を、所定の水質基準を満たすまで調整した後に、外部に排水することができる。   Furthermore, according to the volume reduction processing apparatus 1 for waste such as jellyfish of the present embodiment, the first medicine feeding device 6, the stirring device 7, the second medicine feeding device 8, and the second water quality analyzer. 9, the wastewater transfer device 10 and the sludge residue discharging device 11, the supernatant water can be drained to the outside after being adjusted until it satisfies a predetermined water quality standard.

また、本実施形態のクラゲ等廃棄物の減容化処理方法によれば、有機物が有機体窒素(O−N)からアンモニア体窒素(NH−N)に分解したことを検出する方法として、クラゲ等廃液中のORPを計測し、ORPの値の正負が逆転することにより検出する方法をとることができる。これにより、定量的な手法により正確に分解を検出することができる。 In addition, according to the method for reducing the volume of waste such as jellyfish in the present embodiment, as a method for detecting that the organic substance is decomposed from organic nitrogen (ON) to ammonia nitrogen (NH 3 -N), A method can be used in which ORP in waste liquid such as jellyfish is measured and detected by reversing the sign of the ORP value. Thereby, decomposition | disassembly can be detected correctly with a quantitative method.

また、有機物が有機体窒素(O−N)からアンモニア体窒素(NH−N)に分解したことを検出する方法として、クラゲ等廃液中の色相変化により検出する方法もとることができる。これにより、簡易的な手法により容易に分析を検出することができる。 Further, as a method for detecting that the organic substance is decomposed from organic nitrogen (O—N) to ammonia nitrogen (NH 3 —N), a method of detecting by a hue change in a waste liquid such as jellyfish can be used. Thereby, analysis can be easily detected by a simple method.

さらに、本実施形態のクラゲ等廃棄物の減容化処理方法によれば、凝集沈殿工程S3と、塩素処理工程S4と、第二の水質分析工程S5と、塩素処理後排水の移送工程S6と、汚泥残渣の処理工程S7とを含む。これにより、上澄み水を、所定の水質基準に調整した後に、放流することができる。   Furthermore, according to the volume reduction processing method for waste such as jellyfish of the present embodiment, the coagulation sedimentation step S3, the chlorination step S4, the second water quality analysis step S5, and the chlorination drainage transfer step S6, And sludge residue treatment step S7. Thereby, supernatant water can be discharged after adjusting to a predetermined water quality standard.

またさらに、本実施形態のクラゲ等廃棄物の減容化処理方法では、全ての工程を1つの貯留槽3内で行うことができる。これにより、設備が簡便になり、設備に掛かる費用を低くすることができる。   Furthermore, in the waste volume reduction processing method for jellyfish and the like according to this embodiment, all the steps can be performed in one storage tank 3. Thereby, an installation becomes simple and the expense concerning an installation can be made low.

<他の実施形態>
次に、本発明を適用した他の実施形態であるクラゲ等廃棄物の減容化処理装置について説明する。図3は、本発明を適用した一実施形態であるクラゲ等廃棄物の減容化処理装置20の構成を示す系統図である。
<Other embodiments>
Next, a volume reduction processing apparatus for waste such as jellyfish, which is another embodiment to which the present invention is applied, will be described. FIG. 3 is a system diagram showing the configuration of a waste volume reduction processing apparatus 20 that is an embodiment to which the present invention is applied.

図3に示すように、本実施形態のクラゲ等廃棄物の減容化処理装置20は、塵芥ピット2と、貯留槽3と、空気曝気装置4と、第1の水質分析装置5と、第1の薬剤投入装置6と、撹拌装置7と、第2の薬剤投入装置28と、第2の水質分析装置29と、排水移送装置10と、汚泥残渣排出装置11と、上澄み水処理容器12とを備えて、概略構成されている。すなわち、本実施形態の減容化処理装置20は、排水移送装置10と、上澄み水処理容器12と、第2の薬剤投入装置28と、第2の水質分析装置29とを備える点において、上述した減容化処理装置1と異なる構成となっている。このため、減容化処理装置1と同一の構成については同一の符号を付すとともに、説明を省略する。   As shown in FIG. 3, the volume reduction processing apparatus 20 for waste such as jellyfish according to this embodiment includes a dust pit 2, a storage tank 3, an air aeration apparatus 4, a first water quality analysis apparatus 5, 1 chemical charging device 6, stirring device 7, second chemical charging device 28, second water quality analyzer 29, drainage transfer device 10, sludge residue discharging device 11, supernatant water treatment container 12 And is generally configured. That is, the volume reduction processing device 20 of the present embodiment is the above-described in that it includes the drainage transfer device 10, the supernatant water treatment container 12, the second medicine input device 28, and the second water quality analysis device 29. The volume reduction processing apparatus 1 is different in configuration. For this reason, about the same structure as the volume reduction processing apparatus 1, while attaching | subjecting the same code | symbol, description is abbreviate | omitted.

上澄み水処理容器12では、第一の薬剤投入後、撹拌及び静置処理した後の貯留槽3内の上澄み液を分取して貯留するために、貯留槽3の周辺に設けられている。本実施形態のクラゲ等廃棄物の減容化処理装置20は、凝集沈殿処理後の排水の上澄み液を分取して貯留し、上澄み水処理容器12内に貯留した排水の塩素処理を行うものである。   The supernatant water treatment container 12 is provided in the vicinity of the storage tank 3 in order to separate and store the supernatant liquid in the storage tank 3 after the first chemical is charged and after stirring and standing treatment. The waste volume reduction processing apparatus 20 of this embodiment collects and stores the supernatant liquid of the waste water after the coagulation sedimentation treatment, and performs chlorination of the waste water stored in the supernatant water treatment container 12. It is.

上澄み水処理容器12としては、特に限定されないが、具体的には、例えば、2mポリ容器等を用いることができる。 The supernatant water treatment vessel 12 is not particularly limited, specifically, for example, can be used 2m 3 plastic container or the like.

第2の薬剤投入装置28は、上澄み水処理容器12内のクラゲ等廃液の上澄み水に、薬剤を投入するために、上澄み水処理容器12の上部に設けられている。なお、第2の薬剤投入装置28としては、上述した第2の薬剤投入装置8と同様のものを用いることができる。   The second chemical charging device 28 is provided on the upper part of the supernatant water processing container 12 in order to input the chemical into the supernatant water of the waste liquid such as jellyfish in the supernatant water processing container 12. In addition, as the 2nd chemical | medical agent injection apparatus 28, the thing similar to the 2nd chemical | medical agent injection apparatus 8 mentioned above can be used.

第2の水質分析装置29は、上澄み水処理容器12内のクラゲ等廃液の水質を分析するために、上澄み水処理容器12の上部に設けられている。なお、第2の水質分析装置29としては、上述した第2の水質分析装置9と同様のものを用いることができる。   The second water quality analyzer 29 is provided in the upper part of the supernatant water treatment container 12 in order to analyze the water quality of the waste liquid such as jellyfish in the supernatant water treatment container 12. In addition, as the 2nd water quality analyzer 29, the thing similar to the 2nd water quality analyzer 9 mentioned above can be used.

排水移送装置10は、移送基準を満たした上澄み水を、上澄み水処理容器12の外側へ排水する。   The drainage transfer device 10 drains the supernatant water that satisfies the transfer standard to the outside of the supernatant water treatment container 12.

次に、上述した本実施形態のクラゲ等廃棄物の減容化処理装置20を用いた、クラゲ等廃棄物等の減容化処理方法を説明する。
本実施形態のクラゲ等廃棄物の減容化処理装置20を用いた、クラゲ等廃棄物の減容化処理方法では、凝集沈殿工程S3後に、貯留槽3内の前記クラゲ等廃液を、上澄み水処理容器12に分取して、塩素処理工程S4、第二の水質分析工程S5、及び塩素処理後排水の移送工程S6を行う。
それ以外の工程については、減容化処理装置1を用いた減容化処理方法と同様である。
Next, a volume reduction processing method for waste such as jellyfish using the above-described volume reduction processing apparatus 20 for jellyfish and the like according to the present embodiment will be described.
In the volume reduction processing method for waste such as jellyfish using the jellyfish and other waste volume reduction processing apparatus 20 of the present embodiment, after the coagulation sedimentation step S3, the jellyfish waste liquid in the storage tank 3 is used as the supernatant water. Sorting into the processing container 12, chlorination process S4, 2nd water quality analysis process S5, and the transfer process S6 of the waste water after chlorination are performed.
Other steps are the same as those in the volume reduction processing method using the volume reduction processing apparatus 1.

以上説明したように、本実施形態のクラゲ等廃棄物の減容化処理装置20によれば、上述したクラゲ等廃棄物の減容化処理装置1と同様の効果を得ることができる。   As described above, according to the jellyfish waste reduction processing apparatus 20 of the present embodiment, the same effects as those of the jellyfish waste reduction processing apparatus 1 described above can be obtained.

また、本実施形態のクラゲ等廃棄物の減容化処理装置20によれば、上澄み水処理容器12を備えており、第2の薬剤投入装置28によって当該上澄み水処理容器12内のクラゲ等廃液の上澄み水に薬剤を投入するとともに、第2の水質分析装置29によって当該上澄み水処理容器12内のクラゲ等廃液の水質を分析することができる。そして、排水移送装置10によって、移送基準を満たした上澄み水を、上澄み水処理容器の外へ排水することができる。これにより、上澄み水と汚泥残渣を分けて処理することで、上澄み水の塩素処理の完了を待たずに、早期に汚泥残渣を排出することができる。   Further, according to the waste volume reduction processing apparatus 20 of the jellyfish of the present embodiment, the supernatant water treatment container 12 is provided, and the jellyfish waste liquid in the supernatant water treatment container 12 is provided by the second chemical charging apparatus 28. In addition, the second water quality analyzer 29 can analyze the water quality of the waste liquid such as jellyfish in the supernatant water treatment container 12. Then, the supernatant water that satisfies the transfer standard can be drained out of the supernatant water treatment container by the drainage transfer device 10. Thus, by treating the supernatant water and the sludge residue separately, the sludge residue can be discharged quickly without waiting for completion of the chlorination of the supernatant water.

また、本実施形態のクラゲ等廃棄物の減容化処理方法によれば、凝集沈殿工程S3後に、貯留槽3内の前記クラゲ等廃液を、上澄み水処理容器12に分取して、塩素処理工程S4、第二の水質分析工程S5、及び塩素処理後排水の移送工程S6を行うことにより、上澄み水と汚泥残渣を分けて処理することができる。これにより、上澄み水の塩素処理の完了を待たずに、早期に汚泥残渣を排出することができる。   Further, according to the method for reducing the volume of waste such as jellyfish according to the present embodiment, after the coagulation sedimentation step S3, the waste liquid such as jellyfish in the storage tank 3 is separated into the supernatant water treatment container 12 and chlorinated. By performing the step S4, the second water quality analysis step S5, and the chlorination drainage transfer step S6, the supernatant water and the sludge residue can be treated separately. Thereby, a sludge residue can be discharged | emitted at an early stage, without waiting for completion of chlorination of supernatant water.

なお、本発明の技術範囲は上記実施の形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。例えば、上述した実施形態の減容化処理装置1,20では、貯留槽3を1つ備える例を説明したが、これに限定されるものではない。例えば、貯留槽3を複数含み、これらを連続して運転する減容化処理装置ユニットとして用いてもよい。   The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the volume reduction processing apparatuses 1 and 20 of the above-described embodiment, an example in which one storage tank 3 is provided has been described, but the present invention is not limited to this. For example, a plurality of storage tanks 3 may be included and used as a volume reduction processing apparatus unit that operates continuously.

1、20 減容化処理装置
2 塵芥ピット
3 貯留槽
4 空気曝気装置
5 第一の水質分析装置
6 第一の薬剤投入装置
7 撹拌装置
8、28 第二の薬剤投入装置
9、29 第二の水質分析装置
10 排水移送装置
11 汚泥残渣排出装置
12 上澄み水処理容器
S1 有機物分解工程
S2 第一の水質分析工程
S3 凝集沈殿工程
S4 塩素処理工程
S5 第二の水質分析工程
S6 塩素処理後排水の移送工程
S7 貯留槽内残渣の処理工程
DESCRIPTION OF SYMBOLS 1,20 Volume reduction processing apparatus 2 Dust pit 3 Storage tank 4 Air aeration apparatus 5 1st water quality analyzer 6 1st chemical | medical agent injection apparatus 7 Stirring apparatus 8, 28 2nd chemical | medical agent injection apparatus 9, 29 2nd Water quality analyzer 10 Wastewater transfer device 11 Sludge residue discharge device 12 Supernatant water treatment vessel S1 Organic matter decomposition step S2 First water quality analysis step S3 Coagulation sedimentation step S4 Chlorine treatment step S5 Second water quality analysis step S6 Transfer of chlorinated wastewater Process S7 Residue tank treatment process

Claims (11)

クラゲ等廃棄物を固液分離して廃棄する減容化処理方法であって、
クラゲ等廃棄物から生じたクラゲ等廃液を、空気曝気処理することにより、クラゲ等廃液中に含まれる有機物を分解する工程と、
前記有機物が有機体窒素(O−N)からアンモニア体窒素(NH−N)に分解したことを検出した際に、前記空気曝気処理を停止する工程と、
を含むことを特徴とするクラゲ等廃棄物の減容化処理方法。
It is a volume reduction processing method that separates and disposes of wastes such as jellyfish,
A step of decomposing organic matter contained in the waste liquid such as jellyfish by subjecting the waste liquid such as jellyfish generated from the waste such as jellyfish to air aeration treatment;
When the organic material is detected to be decomposed into ammonia body nitrogen (NH 3 -N) from organisms nitrogen (O-N), the step of stopping said air aeration,
A method for reducing the volume of waste such as jellyfish.
前記分解したことを検出する方法が、前記クラゲ等廃液のORPを計測し、前記ORPの値の正負が逆転することにより検出する方法であることを特徴とする請求項1に記載のクラゲ等廃棄物の減容化処理方法。   2. The jellyfish waste disposal according to claim 1, wherein the method of detecting the decomposition is a method of measuring the ORP of the waste liquid such as the jellyfish and detecting by reversing the sign of the ORP value. Volume reduction processing method. 前記分解したことを検出する方法が、前記クラゲ等廃液の色相変化により検出する方法であることを特徴とする請求項1のクラゲ等廃棄物の減容化処理方法。   2. The method for reducing the volume of waste such as jellyfish according to claim 1, wherein the method of detecting the decomposition is a method of detecting by a hue change of the waste liquid such as jellyfish. 前記空気曝気処理の停止後に、水質分析を行う、第一の水質分析工程と、
前記第一の水質分析工程後に、前記クラゲ等廃液中に凝集沈殿用薬剤を添加し、その後、曝気処理、撹拌処理及び静置処理を行うことにより、前記クラゲ等廃液を上澄み水と汚泥残渣に固液分離させる、凝集沈殿工程と、
前記凝集沈殿工程後に、前記上澄み水に塩素剤を添加し、撹拌する、塩素処理工程と、
前記塩素処理工程後に、前記上澄み水のORPの測定を行い、所定の値以上であることを確認した後、水質分析を行う、第二の水質分析工程と、
前記第二の水質分析工程後に、所定の基準を満たした前記上澄み水を外部に放流する、塩素処理後排水の移送工程と、
前記汚泥残渣を外部に排出する、汚泥残渣の処理工程と、
を含むことを特徴とする請求項1乃至3のいずれか一項に記載のクラゲ等廃棄物の減容化方法。
A first water quality analysis step for performing water quality analysis after stopping the air aeration process;
After the first water quality analysis step, the jellyfish waste liquid is added to the supernatant water and sludge residue by adding an aggregating and precipitating agent to the jellyfish waste liquid, and then performing an aeration process, a stirring process and a stationary process. A coagulation-precipitation step for solid-liquid separation;
After the coagulation sedimentation step, a chlorine agent is added to the supernatant water and stirred, a chlorination step,
After the chlorination process, the ORP of the supernatant water is measured, and after confirming that it is equal to or higher than a predetermined value, a water quality analysis is performed, a second water quality analysis process,
After the second water quality analysis step, the supernatant water that satisfies a predetermined standard is discharged to the outside.
A sludge residue treatment step for discharging the sludge residue to the outside;
The volume reduction method of wastes, such as a jellyfish, as described in any one of Claims 1 thru | or 3 characterized by the above-mentioned.
全ての工程を1つの貯留槽内で行うことを特徴とする請求項1乃至4のいずれか一項に記載のクラゲ等廃棄物の減容化処理方法。   All the processes are performed in one storage tank, The volume reduction processing method of wastes, such as a jellyfish, as described in any one of Claims 1 thru | or 4 characterized by the above-mentioned. 前記凝集沈殿工程後に、貯留槽内の前記クラゲ等廃液を、別の処理容器に分取して、前記塩素処理工程、前記第二の水質分析工程、及び前記塩素処理後排水の移送工程を行うことを特徴とする請求項4に記載のクラゲ等廃棄物の減容化処理方法。   After the coagulation sedimentation step, the waste liquid such as jellyfish in the storage tank is separated into another processing container, and the chlorination step, the second water quality analysis step, and the chlorination drainage transfer step are performed. The volume reduction processing method of wastes, such as a jellyfish of Claim 4 characterized by the above-mentioned. 海水取水ラインから除去・回収したクラゲ等廃棄物を一時貯留する貯留槽と、
前記貯留槽内のクラゲ等廃液を空気曝気する空気曝気装置と、
前記クラゲ等廃液中の有機体窒素(O−N)がアンモニア体窒素(NH−N)まで分解したことを検出する第一の水質分析装置と、
を備えるクラゲ等廃棄物の減容化処理装置。
A storage tank for temporarily storing jellyfish and other waste removed and collected from the seawater intake line;
An air aeration apparatus for aeration of waste liquid such as jellyfish in the storage tank;
A first water analysis device for detecting that the organisms nitrogen of the jellyfish, such as the effluent (O-N) was decomposed to ammonia body nitrogen (NH 3 -N),
A volume reduction processing device for waste such as jellyfish.
前記第一の水質分析装置が、ORP計測器を備える請求項7に記載のクラゲ等廃棄物の減容化処理装置。   The volume reduction processing apparatus for waste such as jellyfish according to claim 7, wherein the first water quality analyzer includes an ORP measuring instrument. 前記第一の水質分析装置が、色相変化検出器を備える請求項7に記載のクラゲ等廃棄物の減容化処理装置。   The volume reduction processing apparatus for waste such as jellyfish according to claim 7, wherein the first water quality analysis apparatus includes a hue change detector. 前記貯留槽内を撹拌する撹拌装置と、
前記貯留槽内に凝集沈殿のための薬剤を投入する第一の薬剤投入装置と、
前記貯留槽内に塩素等の薬剤を投入する第二の薬剤投入装置と、
前記塩素等の薬剤投入後の前記クラゲ等廃液のORPを計測し、前記ORPが所定の値以上に達したら、前記クラゲ等廃液の水質を分析する第二の水質分析装置と、
前記貯留槽の外に前記クラゲ等廃液の上澄み水を移送する排水移送装置と、
前記貯留槽の底部の汚泥残渣を前記貯留槽の外に排出する汚泥残渣排出装置と、
を備える請求項7乃至9のいずれか一項に記載のクラゲ等廃棄物の減容化処理装置。
A stirring device for stirring the inside of the storage tank;
A first drug charging device for charging a drug for aggregation and precipitation into the storage tank;
A second drug charging device for charging a chemical such as chlorine into the storage tank;
Measuring the ORP of the waste liquid such as jellyfish after adding the chemical such as chlorine, and when the ORP reaches a predetermined value or more, a second water quality analyzer for analyzing the water quality of the waste liquid such as jellyfish;
A drainage transfer device that transfers the supernatant water of the waste liquid such as the jellyfish outside the storage tank,
A sludge residue discharging device for discharging the sludge residue at the bottom of the storage tank to the outside of the storage tank;
The volume reduction processing apparatus of wastes, such as a jellyfish as described in any one of Claims 7 thru | or 9.
前記貯留槽内を撹拌する撹拌装置と、
前記貯留槽内に凝集沈殿のための薬剤を投入する第一の薬剤投入装置と、
前記凝集沈殿のための薬剤投入後の撹拌、静置処理した後の前記貯留槽内の上澄み水を分取して貯留する上澄み水処理容器と、
前記上澄み水処理容器に塩素等の薬剤を投入する第二の薬剤投入装置と、
前記上澄み水処理容器内の前記上澄み水のORPを計測し、前記ORPが所定の値以上に達したら、前記上澄み水の水質を分析する第二の水質分析装置と、
前記上澄み水処理容器の外に前記上澄み水を移送する排水移送装置と、
前記貯留槽の底部の汚泥残渣を前記貯留槽の外に排出する汚泥残渣排出装置と、
を備える請求項7乃至9のいずれか一項に記載のクラゲ等廃棄物の減容化処理装置。
A stirring device for stirring the inside of the storage tank;
A first drug charging device for charging a drug for aggregation and precipitation into the storage tank;
Supernatant water treatment container for separating and storing the supernatant water in the storage tank after the chemicals are added for agglomeration and precipitation, and after the stationary treatment,
A second drug charging device for charging a chemical such as chlorine into the supernatant water treatment container;
Measuring the ORP of the supernatant water in the supernatant water treatment container, and when the ORP reaches a predetermined value or more, a second water quality analyzer for analyzing the quality of the supernatant water;
A drainage transfer device for transferring the supernatant water out of the supernatant water treatment container;
A sludge residue discharging device for discharging the sludge residue at the bottom of the storage tank to the outside of the storage tank;
The volume reduction processing apparatus of wastes, such as a jellyfish as described in any one of Claims 7 thru | or 9.
JP2014197805A 2014-09-29 2014-09-29 Jellyfish waste reduction method and jellyfish waste reduction device Expired - Fee Related JP6446220B2 (en)

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JPH09141294A (en) * 1995-11-21 1997-06-03 Kurita Water Ind Ltd Biological nitrogen removing method
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