JPS59132996A - Circulation of raw liquid through catalytic aeration tank - Google Patents

Abstract

PURPOSE:To perform uniform reaction, while reducing the short pass part of a raw liquid, by providing a plurality of circulatory systems each comprising a packed bed for circulating a raw liquid along a longitudinal direction only to an aeration tank and a sparger pipe for circulating a raw liquid to said packed bed, and circulating a raw liquid in series. CONSTITUTION:A sparger pipe 3 is provided in the vicinity of the lower part of a packed bed 2, to perform the circulation of a raw liquid inside the packed bed and the supply of said raw liquid to microbes adherent to the packed bed by the ejection of air through the fine openings of said sparger pipe 3. Hereon, one packed bed and one sparger pipe constitute one unit circulatory system, and there are two system of this kind adjacent to each other, one of which is the first system comprising a packed bed 2 and a sparger pipe 3 and the other of which is the second system comprising a packed bed 2' and a sparger pipe 3'. A buffle 8 is placed between said two system to circulate the raw liquid through the first and second circulatory systems in series. Hence, the short pass part of the raw liquid is reduced, the chance of reaction is made uniform at each part of the circulation, and the efficiency of reaction is enhanced.

Description

【発明の詳細な説明】 本発明は原液を縦方向のみに流す充填層例えばハニカム
チューフ型等を用いたばっ気槽に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an aeration tank using a packed bed, such as a honeycomb tube type, in which a stock solution flows only in the vertical direction.

従来この種のばっ気槽では幾つかの充填層を配置するに
してもそれを並列に使用していた。このに向う液が多く
また層内の原液濃度も均一でなく。Conventionally, in this type of aeration tank, several packed beds were arranged in parallel. There are many liquids flowing into this layer, and the concentration of the stock liquid within the layer is not uniform.

ために槽内の反応効率か余りよくない。そこで本発明で
は原液を槽内におかれた幾つかの充填層を直列に流すこ
とにより、原液は充填層をかならず通るようにして反応
効率をあげるようにした。Therefore, the reaction efficiency inside the tank is not very good. Therefore, in the present invention, the stock solution is made to flow in series through several packed beds placed in a tank, so that the stock solution always passes through the packed beds, thereby increasing the reaction efficiency.

第１図は本発明に用いるばっ気槽の平面図、第２図は第
１図のＡＡ矢視図である。図で１はばっ気槽、２．２’
は充填層、８．８’は散気管、５は原液人口、６は処理
ずみ液の出口である。散気管３は充填層２の下部近くに
おかれ、その多数の細孔よりの空気の噴出により充填層
における原液の循環と充填層に０着している微生物への
酸素の供給を明ではこの２組の糸の間にバッフル８をお
き原液が第１と第２の循環系を直列に流れるようにする
。FIG. 1 is a plan view of an aeration tank used in the present invention, and FIG. 2 is a view taken along the line AA in FIG. In the figure, 1 is an aeration tank, 2.2'
8.8' is a packed bed, 8.8' is an aeration pipe, 5 is a stock solution port, and 6 is an outlet for the treated solution. The air diffuser 3 is placed near the bottom of the packed bed 2, and by ejecting air from its many pores, it circulates the raw solution in the packed bed and supplies oxygen to the microorganisms attached to the packed bed. A baffle 8 is placed between the two sets of threads to allow the stock solution to flow in series through the first and second circulation systems.

これはバッフル８はその下部では第１の梁と第２の系と
をしゃ断し、上部ては散気管３の上方ての−・部の切欠
き８ａにのみ原液の流れを５′１−ずようにすることに
よって行われる。この原液のショートバスを少なくする
には第１の系と第２の系とで充填層と散気管との配置関
係を図のように反対にすることも必要である。This is because the baffle 8 cuts off the first beam and the second system at its lower part, and blocks the flow of the stock solution only into the notch 8a at the upper part of the air diffuser 3 at its upper part. This is done by doing so. In order to reduce the number of short baths of the stock solution, it is also necessary to reverse the arrangement of the packed bed and the diffuser tube in the first system and the second system, as shown in the figure.

このようにして本発明は原液を幾つかのＶ＾環系を直列
に流すので原液のショートバス分か少なくなり、また反
応の機会も流れの各部て均一化さね反応効率の白玉に資
しつる。In this way, the present invention allows the stock solution to flow through several V^ ring systems in series, which reduces the number of short baths for the stock solution, and also equalizes reaction opportunities in each part of the flow, contributing to a uniform reaction efficiency. Vine.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に用いるばっ気槽の平面図、第２図は第
１図のＡＡ矢視図である。 １　ばっ気槽 ２．２：充填層 ３．３１敗気管FIG. 1 is a plan view of an aeration tank used in the present invention, and FIG. 2 is a view taken along the line AA in FIG. 1 Aeration tank 2.2: Filled bed 3.31 Septic tube

Claims (1)

【特許請求の範囲】[Claims] 一つのばっ気槽に原液の流れを縦方向にのみ許す充填層
とこの充填層に原液を循環させる散気凭・よりなる単位
の循環系を数組おき、これら幾つかの循環系を下記のよ
うにして原液が直列に流ねるようにしたばっ気槽内の原
液の通流方法。すなわちこれらの系のうぢ相隣るｊ４ｉ
位のＵｆｊ　ｍ糸の間では充填層と敗気雀・をｑに反対
位置関係においてこの２糸の間にバッフルを設け、この
バッフルはド）キ１りでは上記２糸をしゃ断し、」二部
ては散気管より発生ずる空気により持ち−１−けられた
液を欣の充填物の」−に流れを許ず切欠きを設置４る。In one aeration tank, there are several sets of unit circulation systems consisting of a packed bed that allows the flow of the stock solution only in the vertical direction and a diffuser that circulates the stock solution in this packed bed, and these several circulation systems are constructed as follows. A method for flowing undiluted solution in an aeration tank so that the undiluted solution flows in series. In other words, the adjacent j4i of these systems
A baffle is provided between the two yarns in the opposite position relative to Ufj m yarns, and this baffle cuts off the two yarns at one time, and In some cases, a notch is installed to prevent the liquid from flowing into the filling of the cup, which is carried by the air generated from the aeration pipe.