JP3899227B2 - How to remove suspended material - Google Patents

How to remove suspended material Download PDF

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JP3899227B2
JP3899227B2 JP2000339687A JP2000339687A JP3899227B2 JP 3899227 B2 JP3899227 B2 JP 3899227B2 JP 2000339687 A JP2000339687 A JP 2000339687A JP 2000339687 A JP2000339687 A JP 2000339687A JP 3899227 B2 JP3899227 B2 JP 3899227B2
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Prior art keywords
water
treated
flow path
suspended
bent portion
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JP2002143831A (en
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克己 飯塚
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克己 飯塚
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Description

【0001】
【発明の属する技術分野】
本発明は、浴場施設や水族館や養殖場などで循環している水の中にあってその下層に於いて懸濁状態となっている物質の除去方法に関するものである。
【0002】
【従来の技術】
浴場施設や水族館や養殖場などの循環している水の中には、老化した動物の細胞や微生物の死骸、油状物質、空気中の塵埃及び水垢、即ち、水の中に存在しているマグネシウム、カルシウム、シリカ、アルミニウム等の非金属性物質が酸化還元作用により状態変化して析出してきた物質等の全部又は一部が混ざり合って前記循環水の下層に懸濁状態となって存在しているものである。
【0003】
しかし、このような懸濁状態となっている物質を含んでいる水を、好気性微生物による浄化処理の目的で処理槽内の接触材や濾材などに接触させると、それらの物質が、接触材や濾材等の表面に付着して、その部分には酸素の供給が充分に行われなくなり、嫌気性となって、良好な好気性微生物による処理ができないものとなってしまう。
【0004】
通常は、このような状態となった接触材や濾材は、そのままの状態で洗浄水で逆洗したり、槽内から取り出して高圧水で洗い流したり等して、付着した物質を除去しているが、処理装置を停止したり処理する手間が掛かったりと能率が悪いものとなっている。
【0005】
【発明が解決しようとする課題】
本発明は、以上のような従来例の不都合を解消し、浴場施設や水族館、あるいは養殖場等で用いられている、循環している水の下層で懸濁状態となっている物質を、濾過装置や化学薬品を用いることなく、物理的な処理によって、手間を掛けずに効率よく除去することを解決の課題とする。
【0006】
【課題を解決するための手段】
本発明の1は、下降勾配を有し、かつ下流の途中に屈曲部を有する流路を利用して懸濁物質を除去する懸濁物質の除去方法であって、
上記流路の上流部から下流に向けて被処理水を流し、該被処理水の下層に存在する懸濁物質を、上記屈曲部に於いて、該流路から流れの直進方向に弾き出して除去するとともに、懸濁物質を除去した処理済水を屈曲方向に回流させる懸濁物質の除去方法である。
【0007】
本発明の2は、本発明の1の懸濁物質の除去方法に於いて、前記流路の勾配を0.58°〜1.15°とした懸濁物質の除去方法である。
【0008】
本発明の3は、本発明の1又は2の懸濁物質の除去方法に於いて、前記屈曲部を直角に構成し、かつ該屈曲部を複数個所に設けた懸濁物質の除去方法である。
【0009】
本発明の4は、本発明の1、2又は3の懸濁物質の除去方法に於いて、前記一つの屈曲部から弾き出される懸濁物質を含む被処理水の流量を、その流路の上流から流下する被処理水の流量の2〜3%とした請求項1、2又は3の懸濁物質の除去方法である。
【0010】
【発明の実施の形態】
本発明は、浴場施設や水族館や養殖場などで循環している水の中に含まれる懸濁物質を物理的に除去する除去方法である。即ち、勾配を有する流路であって、その下流途中に屈曲部を構成した流路を利用して懸濁物質を除去する方法であり該流路の上流から下流に向けて被処理水を流し、上記被処理水の下層に存在する懸濁物質を、被処理水の一部とともに、上記屈曲部に於いて、上記流路から流れの直進方向に弾き出して除去すると同時に、懸濁物質を除去した処理済水を屈曲方向に回流させる懸濁物質の除去方法である。
【0011】
前記被処理水は、主として浴場施設や水族館、あるいは養殖場等で循環再利用している循環水であって、健康ランドや日帰りの湯等と一般に呼ばれている施設の浴槽の湯水や、水族館や養殖場等の魚その他の飼育槽の水等を対象としたものである。
【0012】
前記懸濁物質は、前述のように、老化した動物の細胞、微生物の死骸、油状物質、空気中の塵埃及び水垢、即ち、水の中に存在しているマグネシウム、カルシウム、シリカ、アルミニウム等の非金属性物質が酸化還元作用により状態変化して析出してきた物質等の全部又は一部が混ざり合って、その比重差から前記循環水の下層に懸濁状態となって存在するものである。
【0013】
前記流路は、例えば、上部開放で、断面形状がU字型、V字型、半円弧型等の樋状部材、または円筒状や角筒状のパイプ状部材等を自由に採用することができる。その材質としてはプラスチック又は金属の何れでも不都合はない。
例えば、前記流路としては、塩化ビニル製のパイプ体又はこれを長さ方向に二つ割りにして半円弧状断面の樋状のものが用いることができる。
【0014】
この流路には、0.58°〜1.15°(概ね1/100〜2/100)の勾配を付けて、その勾配の下方側には屈曲部を設ける。その屈曲部は、例えば、エルボを長さ方向に均等に二つ割にした屈曲部材を用い、これを上部開放状態で前記流路に連結して直角部を形成するものである。
そしてこの屈曲部は、被処理水に含まれる懸濁物質の除去率を高めるために複数個所に配して構成するのが適当である。
【0015】
このように構成した流路の上流部から懸濁物質を含んだ被処理水を流すと、該被処理水は、該流路中をその勾配によって流下し、下流の屈曲部に於いて、側壁に衝突し、その際に、被処理水の下層に位置する比重の大きな懸濁物質は、若干の水とともに慣性によって直進し側壁をよじ登って弾き出され、除去されることとなる。
【0016】
この時、一つの屈曲部から弾き出される懸濁物質を含む被処理水を、被処理水の流量の2〜3%体での流量とするのが良い。
ここで一つの屈曲部から弾き出される量をこれより多くすると、懸濁物質の量に比して同時に弾き出される被処理水の量が多くなり過ぎることとなり、また、屈曲部から弾き出される量をこれより少なくすると、懸濁物質を充分に弾き出すことができないものとなって、いずれの場合も処理効率が悪いものとなってしまう。
【0017】
また、弾き出された懸濁物質を多量に含む水は、いったん懸濁物質受入れ容器に受け入れて、これを堆肥や腐葉土などの上に散布すれば、肥料として利用することができる。また懸濁物質を除去した処理済水は、前記流路の中を直角方向に回流して貯留槽などに送られて再利用に供されるものである。
【0018】
【実施例】
以下、本発明の実施例を図面を参照しながら詳細に説明する。図1は、本発明の懸濁物質の除去方法に用いる装置の1実施例を示す説明図である。
【0019】
<実施例1>
先ず、被処理水を処理する装置として、図1に示すように、直径が150mmの断面半円弧状の塩化ビニル製の樋1a、1b、1cを用意し、その樋1aの勾配を0.86°(約1.5/100)に設定して第1流路Aを構成し、その第1流路Aの下端に直径が150mmのエルボを均等に二つ割にしてなる屈曲部材2aの上端を連結して第1屈曲部(直角部)を構成し、該第1屈曲部の下端に樋1bを連結し、かつその勾配を同様に0.86°に設定して第2流路Bを構成し、その第2流路Bの下端に屈曲部材2bの上端を連結して第2屈曲部(直角部)を構成し、該第2屈曲部の下端に樋1cを連結して勾配を更に同様に0.86°に設定し第3流路Cを構成した。
【0020】
更に、上記第1流路Aの上端部には被処理水を該第1流路Aに導入するための被処理水導入管4を、第1屈曲部の近傍で第1流路Aの延長方向及び第2屈曲部の近傍で第2流路Bの延長方向のそれぞれには弾き出された懸濁物質を多量に含む被処理を受け入れる懸濁物質受入れ容器5a又は5bを、第3流路Cの下端の近傍でその延長方向には処理済水を受け入れる処理済水貯留槽6を、それぞれ配置して、この実施例の懸濁物質の除去方法に用いる装置を完成させた。なお前記被処理水導入管4には流量調節バルブ3を付設した。
【0021】
この装置の第1流路Aの上端部に、被処理水導入管4より被処理水として某健康ランドの浴槽の湯を導入して、その被処理水に含まれる懸濁物質を除去することとした。また、その時に第1流路Aの上端への導入量は、第1屈曲部から弾き出される量が導入量の3%になるように流量調節バルブ3によって調節した。
【0022】
これによって被処理水は、第1流路A→第1屈曲部→第2流路B→第2屈曲部→第3流路Cと流下し、そのとき、第1屈曲部及び第2屈曲部に於いて、被処理水に含まれその下層に存在する懸濁物質は、若干の被処理水とともに、各流路の外に弾き出され、これは、第1屈曲部では懸濁物質受入れ容器5aに、第2屈曲部では懸濁物質受入れ容器5bに、それぞれ受け入れられ、更に第3流路Cから流下する処理済水は処理済水貯留槽6に受け入れられた。
【0023】
<実施例2>
前記実施例1の装置を用いて、被処理水として某水族館の魚の飼育槽の水を被処理水導入管4より第1流路Aに導入し、被処理水に含まれる懸濁物質を除去することとした。また、その時の第1流路Aへの導入量は、第1屈曲部から弾き出される量が、導入量の2%になるように流量調節バルブ3で調節した。
【0024】
これによって導入した被処理水は、第1流路A→第1屈曲部→第2流路B→第2屈曲部→第3流路Cと流下し、第1屈曲部及び第2屈曲部に於いて、被処理水に含まれその下層に存在する懸濁物質は、若干の被処理水とともに、各流路の外に弾き出され、これは第1屈曲部では懸濁物質受入れ容器5aに、第2屈曲部では懸濁物質受入れ容器5bに、それぞれ受け入れられ、更に第3流路Cから流下する処理済水は処理済水貯留槽6に受け入れられた。
【0025】
前記実施例1及び実施例2で用いた各被処理水、前記実施例1及び実施例2で処理した各処理済水をそれぞれサンプリングし、次に示す試験項目及び試験方法によってその水質を測定して本発明の効果を確認した。
【0026】
<試験項目及び試験方法>
各被処理水及び各処理済水の試験測定は、測定前に均一になるようによく振とうさせた後に行うようにした。
1.透視度
測定液を上部から導入し、下部から任意に排出できるような構造とし、底に二重十字標識板を入れた直径35mm、高さ60cmのガラス管を使用し、これに測定液を満たし、該ガラス管の上から覗いて、上記二重十字標識がはっきりと識別できる底からの高さ(cm)を計測し、測定液の透視度とする。
2.SS濃度
S69年環告64付表8に基づき測定する。測定単位ppm。
【0027】
【表1】

Figure 0003899227
【0028】
<実施例の試験結果の考察>
前記表1の実施例1及び実施例2の各測定結果から判るように、被処理水の処理後の透視度及びSS濃度の値は、いずれも処理前のそれらの値と比較してはっきりとした優位差が出ており、この実施例の懸濁物質の除去方法は優れたものであることが分かる。
【0029】
【発明の効果】
従って、本発明の1の懸濁物質の除去方法によれば、被処理水の下層で懸濁状態となっている物質を、濾過装置や化学薬品を用いることなく、勾配を設定し、かつその途中に屈曲部を配して構成した流路を通過させることだけで、手間も掛けずに容易に効率よく除去することができる。
【0030】
また、この処理を行うことよって後工程の好気性微生物処理に於いて、その処理槽の接触材や濾材等の表面に、前記懸濁状態となっている物質が付着することが無くなり、酸素の供給が充分に行われるようになって、良好な好気性微生物処理ができるようになる。
【0031】
本発明の2の懸濁物質の除去方法によれば、前記流路に適度の勾配を設定したので、被処理水は前記流路を適度な速度を保持して流下するようになり、被処理水の下層で懸濁状態となっている物質を、屈曲部で、流れの直進方向に弾き出して除去することができる。
【0032】
本発明の3の懸濁物質の除去方法によれば、前記流路には屈曲部を直角に構成し、かつ該屈曲部を複数個所に構成したので、被処理水の中に存在する懸濁状態となっている物質を取り残しなく効率よく除去することができる。
【0033】
本発明の4の懸濁物質の除去方法によれば、前記一つの屈曲部から弾き出される懸濁物質を多量に含む被処理水の流量を、上流から流下する被処理水の流量の2〜3%としたので、懸濁状態となっている物質を取り残しなく、効率よく除去し、かつ回流させる処理水の回収率を高めることができる。
【図面の簡単な説明】
【図1】一実施例の懸濁物質の除去方法に用いる装置の1例を示す説明図。
【符号の説明】
1a、1b、1c 樋
2a、2b 屈曲部材
3 流量調節バルブ
4 被処理水導入管
5a、5b 懸濁物質受入れ容器
6 処理済水貯留槽
A 第1流路
B 第2流路
C 第3流路[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for removing substances suspended in a lower layer of water circulating in a bathing facility, an aquarium, or a farm.
[0002]
[Prior art]
In the circulating water of bathing facilities, aquariums and farms, there are aging animal cells, microbial carcasses, oily substances, dust and scales in the air, that is, magnesium present in the water. Non-metallic substances such as calcium, silica, aluminum, etc. are present in a suspended state in the lower layer of the circulating water by mixing all or part of the substances, etc. that have been precipitated by the state change due to redox action. It is what.
[0003]
However, when water containing such suspended substances is brought into contact with contact materials or filter media in the treatment tank for the purpose of purification treatment by aerobic microorganisms, these substances are contacted with the contact materials. It adheres to the surface of a filter medium or the like, and oxygen is not sufficiently supplied to the part, and it becomes anaerobic and cannot be treated with good aerobic microorganisms.
[0004]
Normally, the contact material and filter medium in such a state are backwashed with washing water as they are, or removed from the tank and washed with high-pressure water to remove adhered substances. However, it is inefficient because it takes time and effort to stop the processing device or to process it.
[0005]
[Problems to be solved by the invention]
The present invention eliminates the disadvantages of the conventional example as described above, and filters substances suspended in the lower layer of circulating water used in bath facilities, aquariums, or farms. It is an object of the present invention to efficiently remove the apparatus without chemicals or chemicals by physical treatment without taking time and effort.
[0006]
[Means for Solving the Problems]
1 of the present invention is a method for removing suspended solids by using a flow path having a downward slope and having a bent portion in the middle of the downstream,
The water to be treated is flowed from the upstream portion to the downstream of the flow path, and suspended substances existing in the lower layer of the water to be treated are ejected from the flow path in the straight direction of the flow at the bent portion. In addition, this is a method for removing suspended substances in which treated water from which suspended substances have been removed is circulated in a bending direction.
[0007]
A second aspect of the present invention is the suspended solid removal method according to the first aspect of the present invention, wherein the flow path has a gradient of 0.58 ° to 1.15 °.
[0008]
A third aspect of the present invention is the suspended matter removal method according to the first or second aspect of the present invention, wherein the bent portion is formed at a right angle, and the bent portion is provided at a plurality of locations. .
[0009]
4 of the present invention is the method for removing suspended solids according to 1, 2 or 3 of the present invention, wherein the flow rate of the water to be treated containing suspended solids ejected from the one bent portion is set upstream of the flow path. The method for removing suspended solids according to claim 1, 2 or 3, wherein the flow rate is 2 to 3% of the flow rate of water to be treated.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is a removal method for physically removing suspended substances contained in water circulating in a bath facility, an aquarium, a farm, or the like. That is, it is a method of removing suspended solids using a flow channel having a gradient and having a bent portion in the middle of the downstream, and the water to be treated is flowed from the upstream to the downstream of the flow channel. The suspended matter present in the lower layer of the water to be treated is removed along with a part of the water to be treated by ejecting it from the flow path in the straight direction of the flow at the bent portion, and at the same time, removing the suspended matter. This is a method for removing suspended substances by circulating the treated water in the bending direction.
[0011]
The treated water is circulating water that is mainly recycled and reused at bathing facilities, aquariums, or aquaculture farms, and hot water in bathtubs of facilities generally called health lands and day-trip hot water, and aquariums. It is intended for fish in fish farms and other breeding tanks.
[0012]
As described above, the suspended solids are cells of aging animals, dead bodies of microorganisms, oily substances, dust and scale in the air, that is, magnesium, calcium, silica, aluminum, etc. present in water. All or a part of the non-metallic substance precipitated by the state change due to the oxidation-reduction action is mixed and exists in a suspended state in the lower layer of the circulating water due to the difference in specific gravity.
[0013]
For example, the channel is open at the top, and a cross-sectionally U-shaped, V-shaped, semicircular arc-shaped bowl-shaped member, or a cylindrical or rectangular tube-shaped pipe-shaped member can be freely employed. it can. There is no inconvenience whether the material is plastic or metal.
For example, as the flow path, a pipe body made of vinyl chloride or a bowl having a semicircular arc section obtained by dividing the pipe body in the length direction can be used.
[0014]
The channel is provided with a gradient of 0.58 ° to 1.15 ° (approximately 1/100 to 2/100), and a bent portion is provided on the lower side of the gradient. The bent portion is, for example, a bent member in which the elbow is equally divided into two in the length direction, and is connected to the flow path in an open state to form a right angle portion.
And it is appropriate to arrange the bent portions at a plurality of locations in order to increase the removal rate of suspended substances contained in the water to be treated.
[0015]
When the water to be treated containing suspended solids is caused to flow from the upstream portion of the flow path configured as described above, the water to be treated flows down in the flow path by the gradient, and the side wall is formed at the downstream bent portion. At that time, suspended solids having a large specific gravity located in the lower layer of the water to be treated go straight along with some water due to inertia and are lifted up by the side walls to be removed.
[0016]
At this time, the water to be treated containing suspended solids ejected from one bent portion is preferably set to a flow rate of 2 to 3% of the flow rate of the water to be treated.
Here, if the amount that is ejected from one bent portion is larger than this, the amount of water to be treated that is simultaneously ejected will be too large compared to the amount of suspended matter, and the amount that is ejected from the bent portion will be increased. If it is less, the suspended solids cannot be ejected sufficiently, and in any case, the processing efficiency is poor.
[0017]
In addition, the water containing a large amount of suspended matter that has been ejected can be used as a fertilizer once it is received in a suspended matter receiving container and sprayed onto compost or humus. Further, the treated water from which suspended substances have been removed circulates in the direction perpendicular to the flow path and is sent to a storage tank or the like for reuse.
[0018]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing an embodiment of an apparatus used for the suspended solid removal method of the present invention.
[0019]
<Example 1>
First, as an apparatus for treating the water to be treated, as shown in FIG. 1, vinyl chloride ridges 1a, 1b and 1c having a semicircular arc shape with a diameter of 150 mm are prepared, and the gradient of the ridge 1a is 0.86. The upper end of the bending member 2a is configured by forming a first flow path A at an angle of about 1.5 / 100 and equally dividing an elbow having a diameter of 150 mm at the lower end of the first flow path A. Are connected to each other to form a first bent portion (right angle portion), the flange 1b is connected to the lower end of the first bent portion, and the gradient thereof is similarly set to 0.86 °, so that the second flow path B is formed. The upper end of the bending member 2b is connected to the lower end of the second flow path B to form a second bent portion (right angle portion), and the flange 1c is connected to the lower end of the second bent portion to further increase the gradient. Similarly, the third flow path C was configured at 0.86 °.
[0020]
Furthermore, a treated water introduction pipe 4 for introducing treated water into the first flow path A is provided at the upper end of the first flow path A, and the first flow path A is extended in the vicinity of the first bent portion. The suspension material receiving container 5a or 5b for receiving the treatment containing a large amount of suspended material ejected in each of the direction and the extension direction of the second channel B in the vicinity of the second bent portion is provided in the third channel C. A treated water storage tank 6 for receiving treated water is arranged in the extension direction in the vicinity of the lower end of each to complete the apparatus used for the suspended matter removal method of this embodiment. The treated water introduction pipe 4 was provided with a flow rate adjusting valve 3.
[0021]
Introducing the hot water of the bathtub of Sakai Health Land as treated water from the treated water introduction pipe 4 to the upper end portion of the first flow path A of this apparatus, and removing suspended substances contained in the treated water It was. At that time, the introduction amount to the upper end of the first flow path A was adjusted by the flow rate adjusting valve 3 so that the amount ejected from the first bent portion was 3% of the introduction amount.
[0022]
Thus, the water to be treated flows down as follows: first flow path A → first bent portion → second flow path B → second bent portion → third flow path C. At that time, the first bent portion and the second bent portion In this case, the suspended substance contained in the water to be treated and present in the lower layer is flipped out of each flow path together with some treated water, and this is the suspended substance receiving container 5a at the first bent portion. In addition, the treated water flowing down from the third flow path C was received in the treated water storage tank 6 in the second bent portion, respectively, in the suspended substance receiving container 5b.
[0023]
<Example 2>
Using the apparatus of the first embodiment, the water in the fish aquarium fish breeding tank is introduced into the first flow path A from the treated water introduction pipe 4 as treated water, and the suspended matter contained in the treated water is removed. It was decided to. In addition, the introduction amount into the first flow path A at that time was adjusted by the flow rate adjusting valve 3 so that the amount ejected from the first bent portion was 2% of the introduction amount.
[0024]
The water to be treated thus introduced flows down as follows: first flow path A → first bent portion → second flow path B → second bent portion → third flow path C, and flows into the first bent portion and the second bent portion. In this case, suspended substances contained in the water to be treated and present in the lower layer thereof are ejected out of each flow path together with some water to be treated, and this is suspended in the suspended substance receiving container 5a at the first bent portion. In the second bent portion, the suspended water receiving vessel 5 b was received, and the treated water flowing down from the third flow path C was received in the treated water storage tank 6.
[0025]
Each treated water used in Example 1 and Example 2 and each treated water treated in Example 1 and Example 2 are sampled, and the water quality is measured by the following test items and test methods. Thus, the effect of the present invention was confirmed.
[0026]
<Test items and test methods>
The test measurement of each treated water and each treated water was carried out after shaking well so as to be uniform before the measurement.
1. Permeability measurement solution is introduced from the top and drained from the bottom, and a glass tube with a diameter of 35 mm and a height of 60 cm with a double cross-label plate at the bottom is used to fill the measurement solution. Look through the glass tube and measure the height (cm) from the bottom at which the double cross mark can be clearly identified to obtain the transparency of the measurement liquid.
2. Measure SS concentration based on S69 year announcement 64 Appendix 8. Unit of measurement ppm.
[0027]
[Table 1]
Figure 0003899227
[0028]
<Consideration of Test Results of Examples>
As can be seen from the measurement results of Example 1 and Example 2 in Table 1, the values of the transparency and SS concentration after treatment of the water to be treated are clearly compared with those before treatment. Thus, it can be seen that the suspension removal method of this example is excellent.
[0029]
【The invention's effect】
Therefore, according to the suspended substance removal method 1 of the present invention, the substance suspended in the lower layer of the water to be treated can be set in a gradient without using a filtration device or chemicals, and its It can be easily and efficiently removed without taking time and effort by simply passing through a flow path configured with a bent portion in the middle.
[0030]
In addition, by performing this treatment, in the post-process aerobic microorganism treatment, the suspended substance is not attached to the surface of the contact material or filter medium of the treatment tank, and oxygen The supply is sufficiently performed, and a favorable aerobic microorganism treatment can be performed.
[0031]
According to the method for removing suspended solids of the present invention, since an appropriate gradient is set in the flow path, the water to be treated flows down the flow path while maintaining an appropriate speed. The substance suspended in the lower layer of water can be removed by being ejected in the straight direction of the flow at the bent portion.
[0032]
According to the method for removing suspended solids according to the third aspect of the present invention, since the bent portion is formed at a right angle in the flow path, and the bent portion is formed at a plurality of locations, the suspension existing in the water to be treated. The material in a state can be efficiently removed without leaving behind.
[0033]
According to the method for removing suspended solids according to 4 of the present invention, the flow rate of water to be treated containing a large amount of suspended solids ejected from the one bent portion is 2 to 3 of the flow rate of water to be treated flowing down from upstream. Therefore, it is possible to efficiently remove the suspended substance and to improve the recovery rate of the treated water to be circulated.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory diagram showing an example of an apparatus used for a suspended substance removal method of one embodiment.
[Explanation of symbols]
1 a, 1 b, 1 c 樋 2 a, 2 b Bending member 3 Flow rate adjusting valve 4 Water to be treated introduction pipe 5 a, 5 b Suspended substance receiving container 6 Treated water storage tank A First flow path B Second flow path C Third flow path

Claims (4)

下降勾配を有し、かつ下流の途中に屈曲部を有する流路を利用して懸濁物質を除去する懸濁物質の除去方法であって、
上記流路の上流部から下流に向けて被処理水を流し、該被処理水の下層に存在する懸濁物質を、上記屈曲部に於いて、該流路から流れの直進方向に弾き出して除去するとともに、懸濁物質を除去した処理済水を屈曲方向に回流させる懸濁物質の除去方法。
A suspended matter removing method that removes suspended matter using a flow path having a downward slope and having a bent portion in the middle of the downstream,
The water to be treated is flowed from the upstream portion to the downstream of the flow path, and suspended substances existing in the lower layer of the water to be treated are ejected from the flow path in the straight direction of the flow at the bent portion. In addition, a suspended matter removal method in which treated water from which suspended matter is removed is circulated in a bending direction.
前記流路の勾配を0.58°〜1.15°とした請求項1の懸濁物質の除去方法。The method for removing suspended solids according to claim 1, wherein the gradient of the flow path is 0.58 ° to 1.15 °. 前記屈曲部を直角に構成し、かつ該屈曲部を複数個所に設けた請求項1又は2の懸濁物質の除去方法。The method for removing suspended solids according to claim 1 or 2, wherein the bent portions are formed at right angles, and the bent portions are provided at a plurality of locations. 前記一つの屈曲部から弾き出される懸濁物質を含む被処理水の流量を、その流路の上流から流下する被処理水の流量の2〜3%とした請求項1、2又は3の懸濁物質の除去方法。The suspension according to claim 1, 2 or 3, wherein the flow rate of the water to be treated containing suspended solids ejected from the one bent portion is 2 to 3% of the flow rate of the water to be treated flowing from the upstream of the flow path. How to remove material.
JP2000339687A 2000-11-07 2000-11-07 How to remove suspended material Expired - Fee Related JP3899227B2 (en)

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