JPS6028524B2 - water treatment equipment - Google Patents

water treatment equipment

Info

Publication number
JPS6028524B2
JPS6028524B2 JP52138805A JP13880577A JPS6028524B2 JP S6028524 B2 JPS6028524 B2 JP S6028524B2 JP 52138805 A JP52138805 A JP 52138805A JP 13880577 A JP13880577 A JP 13880577A JP S6028524 B2 JPS6028524 B2 JP S6028524B2
Authority
JP
Japan
Prior art keywords
water
treated
tank
floc
water treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP52138805A
Other languages
Japanese (ja)
Other versions
JPS5471472A (en
Inventor
徹 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Rensui Co
Original Assignee
Nippon Rensui Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Rensui Co filed Critical Nippon Rensui Co
Priority to JP52138805A priority Critical patent/JPS6028524B2/en
Publication of JPS5471472A publication Critical patent/JPS5471472A/en
Publication of JPS6028524B2 publication Critical patent/JPS6028524B2/en
Expired legal-status Critical Current

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Description

【発明の詳細な説明】 この発明は水処理装置、一層詳しくは凝集剤を混和して
水の浄化を行う水処理装置に係わる。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a water treatment device, and more particularly to a water treatment device that purifies water by mixing a coagulant therein.

懸濁固形物や重金属化合物類などを含有する原水に硫酸
アルミニウム、明ばん等の凝集剤を加え、十分灘拝し、
生成フロックを沈降分離して水を浄化する方法は従釆か
らよく知られている。しかしこの方法を実施する従来知
られている設備は、大きな床面積を必要とし、工業的に
好ましいものでなかった。本発明は所要床面積が4・さ
く、コンパクトに横成されており、且つ製作費が低廉な
水処理袋瞳を提供することを目的とし、その要旨とする
ところは彼処理水と凝集剤とを混和するための混合槽、
この混合槽からの凝集剤を混和した被処理水を緩慢に流
下させる堅形のフロック形成槽、このフロック形成槽の
下部に達した被処理水を斜め上向きに進ませ、その進行
路途中において、進行路を多数の狭路に区分し、彼処理
中に混在するフロックを重力分離させるフロックの沈降
分離装置、この沈降分離装置の上部から排出される被処
理水を下向きに流し、水中に残存するフロックを炉別す
る炉材を有する炉別装置及びこの炉別装置から排出され
る被処理水を貯える処理水貯槽を主要構成部となし、上
記フロック形成槽の下部と上記フロックの沈降分離装置
の下部とは共通しており、この共通部分にフ。
Coagulants such as aluminum sulfate and alum are added to raw water containing suspended solids and heavy metal compounds, and the mixture is stirred thoroughly.
The method of purifying water by settling and separating the produced flocs is well known from the field. However, conventionally known equipment for carrying out this method requires a large floor space and is not industrially desirable. The purpose of the present invention is to provide a water treatment bag which requires only 4 square meters of floor space, is compactly constructed, and is inexpensive to manufacture. a mixing tank for mixing
A rigid flocculation tank in which the treated water mixed with a flocculant from this mixing tank slowly flows down, and the treated water that reaches the bottom of this flocculation tank is made to advance obliquely upward, and midway along its path, A floc sedimentation separator divides the travel path into a number of narrow paths and separates the mixed flocs by gravity during treatment.The treated water discharged from the top of this sedimentation separator flows downward and remains in the water. The main components are a furnace separation device having a furnace material for separating flocs and a treated water storage tank for storing the water to be treated discharged from this furnace separation device, and the lower part of the floc formation tank and the sedimentation separation device for the flocs. It is common to the lower part, and this common part has a f.

ツク排出管が設けられており、更に上記炉別装置の機能
が低下するとき、上記処理水貯槽内の水を炉別装置に送
り炉材を逆洗する逆洗機構が設けられ、逆洗が終ったと
きは正常運転に戻るようにされてなる水処理装置に存す
る。以下本発明を添付図面の説明と併せて詳述する。第
1図は本発明装置の一例の全体略図、′第2図は本発明
装置のフロック沈降分離装置における狭路部分の一例の
斜視略図、第3図は同狭勝部分の一例の平面図である。
Furthermore, when the function of the above-mentioned furnace-specific equipment deteriorates, a backwash mechanism is provided that sends water in the treated water storage tank to the furnace-based equipment and backwashes the furnace materials. The water treatment equipment is designed to return to normal operation when the process is finished. The present invention will be described in detail below in conjunction with the description of the accompanying drawings. Figure 1 is an overall schematic diagram of an example of the apparatus of the present invention, Figure 2 is a schematic perspective view of an example of a narrow passage section in the floc sedimentation and separation apparatus of the apparatus of the present invention, and Figure 3 is a plan view of an example of the narrow passage section. be.

図中、1は被処理水の貯槽、1′は貯槽から急速混合槽
へ彼処理水を送る管、1″は弁、1…はポンプ、2は流
量計、3は急速混合槽、4は縄梓機、5はフロック形成
槽、6は邪魔板、7はフロック沈降部、8はフロック排
出管、9及び10は弁、11は上昇する被処理水を多数
の狭路に区分した狭路部分、12はフロックの沈降分離
装置、13は炉別装置、14及び15は炉材層、16は
集水管、17は導水管、17′は弁、18はラインポン
プ、19は液面検知器、20は集水管、21は導水管、
22は排水管、22′及び23は弁、24は処理水貯槽
、25は液面検知器、26は浄化された水の導出管、2
6′は弁、27及び29は凝集剤等、添加薬剤の貯槽、
28及び30はポンプである。
In the figure, 1 is a storage tank for treated water, 1' is a pipe that sends treated water from the storage tank to a rapid mixing tank, 1'' is a valve, 1... is a pump, 2 is a flow meter, 3 is a rapid mixing tank, and 4 is a 5 is a flocculation tank, 6 is a baffle plate, 7 is a floc settling section, 8 is a floc discharge pipe, 9 and 10 are valves, and 11 is a narrow path that divides the rising water to be treated into a number of narrow paths. 12 is a sedimentation separation device for flocs, 13 is a furnace separate device, 14 and 15 are furnace material layers, 16 is a water collection pipe, 17 is a water conveyance pipe, 17' is a valve, 18 is a line pump, 19 is a liquid level detector , 20 is a water collection pipe, 21 is a water conveyance pipe,
22 is a drain pipe, 22' and 23 are valves, 24 is a treated water storage tank, 25 is a liquid level detector, 26 is a purified water outlet pipe, 2
6' is a valve, 27 and 29 are storage tanks for additive chemicals such as flocculants,
28 and 30 are pumps.

この装置を運転するには、先ず被処理水の貯槽1内に貯
えられている、固形懸濁物又は重金属化合物類などの不
純物を含有する被処理水が、管1′を経て、弁1′を調
整することにより一定流量で急速混合槽3に連続して送
られる。
To operate this device, first, the water to be treated, which is stored in the storage tank 1 of the water to be treated and contains impurities such as solid suspensions or heavy metal compounds, is passed through the pipe 1' to the valve 1'. is continuously sent to the rapid mixing tank 3 at a constant flow rate.

一方凝集剤の貯槽27,29で予め調製されている凝集
剤がポンプ28,30によって一定量宛、連続して急速
混合槽3へ送られ、ここで鷹枠機4によって被処理水と
凝集剤とが激しく混合される。混合液は溢流してフロツ
ク形成槽5の上部に入り、順次下方に進む。この際、図
示するようにフロック形成槽5内に僅かに懐斜する邪魔
板6を互い違いに多数設けておくときは、水は緩慢な速
度で糟内をジクザク状に流れ、その間、凝集剤の作用に
よって水中の不純物を補集して生成するフロツクは水と
共に下方に進み、フロック沈降部7にたまる。なお上記
邪魔板の設置は、図のようにフ。ック形成槽5が額斜状
のフロック沈降分離装置12と一体的に結合し、フロッ
ク形成槽5が下方に行くに従って狭くなっているときは
、邪魔板の間隅を下方に行くに従って大きくし、彼処理
水の流速を一定にするように設計するのが好ましい。し
かしフロックの生成、成長が早いときは、殊更このよう
にする必要はない。フロック形成槽5の下部に達した被
処理水は次いでフロックの沈降分離装置12に進み、こ
の中を上昇する。
On the other hand, the flocculant prepared in advance in the flocculant storage tanks 27 and 29 is continuously sent in a fixed amount by pumps 28 and 30 to the rapid mixing tank 3, where it is mixed with the water to be treated and the flocculant by the hawk frame machine 4. are mixed vigorously. The mixed liquid overflows and enters the upper part of the floc formation tank 5, and sequentially moves downward. At this time, when a large number of slightly oblique baffle plates 6 are alternately provided in the flocculation tank 5 as shown in the figure, the water flows in a zigzag pattern inside the flocculant at a slow speed, during which time the flocculant is The flocs generated by collecting impurities in the water travel downward together with the water and accumulate in the floc settling section 7. The above baffle plate should be installed as shown in the figure. When the floc formation tank 5 is integrally combined with the oblique-shaped floc sedimentation separator 12 and the floc formation tank 5 becomes narrower as it goes downward, the corners between the baffle plates are made larger as they go downward, and It is preferable to design the flow rate of treated water to be constant. However, when the generation and growth of flocs is rapid, there is no particular need to do this. The water to be treated that has reached the lower part of the floc formation tank 5 then proceeds to the floc sedimentation separation device 12 and rises therein.

沈降分離装置12は煩斜しており、且つ水の進行途中に
おいて、第2図に示すように隔壁によって多数の狭路に
区分された狭路部分が形成されている。この狭路は第3
図に示すように六角形劇ちハニカム状であっても又は四
角形、三角形等適宜の角形をなしていてもよい。また、
平行板を多数並列設置したもの、(即ち狭路は横に細長
い角形)であってもよい。このようにすることにより、
上昇する被処理水中になお混在しているフロツクは重力
により分離、沈降し、フロック沈降部7にたまる。ここ
にたまったフロックは随時、弁9を開き排出管8から排
出される。なお、排出管8にフロツクがつまるときは弁
10を開き、水をフラッシュして閉塞を防止する。フロ
ックの沈降分離装置12は傾斜角度を60土loo程度
とするのが好ましい。
The sedimentation separator 12 is inclined, and in the course of the water's progress, a narrow passage section is formed which is divided into a large number of narrow passages by partition walls, as shown in FIG. This narrow road is the third
As shown in the figure, it may have a hexagonal honeycomb shape, or it may have an appropriate square shape such as a square or a triangle. Also,
It may be a structure in which a large number of parallel plates are arranged in parallel (that is, the narrow passage has a horizontally elongated rectangular shape). By doing this,
The flocs still mixed in the rising water to be treated are separated and settled by gravity, and accumulated in the floc settling section 7. The flocs accumulated here are discharged from the discharge pipe 8 by opening the valve 9 at any time. In addition, when the discharge pipe 8 becomes clogged with floc, the valve 10 is opened to flush out the water and prevent the blockage. It is preferable that the floc sedimentation separation device 12 has an inclination angle of approximately 60°.

またこの装置12のフロック形成槽5に接する側の壁を
図示するようにフロック形成槽5と共用するように構成
すれば、装置構造のコンパクト化、設備費の低減をはか
ることができる。フロックの沈降分離装置12の上部に
達した被処理水は溢流して炉別装置13に入る。
Furthermore, if the wall on the side of the device 12 that is in contact with the floc formation tank 5 is configured to be shared with the floc formation tank 5 as shown in the figure, the device structure can be made more compact and the equipment cost can be reduced. The water to be treated that has reached the upper part of the floc sedimentation separation device 12 overflows and enters the furnace separate device 13 .

ここに流入した被処理水は重力により下方に進むが、炉
別装置13には炉材が充填されており、炉材を通過して
いる間に被処理水になお残留している微細なフロックが
完全に除かれる。図示のものでは炉材層として14及び
15の2層が設けられているが、14を例えばアンスラ
の層、15を例えば珪砂の層とすることにより、効率的
な炉過を行なうことができる。必要ならば脱色、脱臭の
ため活性炭の層を更に付加してもよい。かくして残留フ
ロックを完全に除いた被処理水は、炉材中に埋もれてい
る集水管16及び導水管17を経て処理水貯槽24に流
入する。なおこの場合、処理水は自重により処理水貯槽
に流入し、ラインポンプ18は作動しない。炉別装置1
3は沈降分離装置12からの溢流水に対し並列して2組
以上設けてもよい。
The water to be treated flows downward due to gravity, but the furnace separate device 13 is filled with furnace material, and while it passes through the furnace material, fine flocs still remaining in the water to be treated are removed. is completely removed. In the illustrated example, two layers 14 and 15 are provided as furnace material layers, but efficient furnace filtration can be achieved by making 14 a layer of anthracite, for example, and 15 a layer of silica sand, for example. If necessary, a layer of activated carbon may be added for decolorization and deodorization. The water to be treated, from which residual flocs have been completely removed, flows into the treated water storage tank 24 through the water collection pipe 16 and water conduit pipe 17 buried in the furnace material. In this case, the treated water flows into the treated water storage tank due to its own weight, and the line pump 18 does not operate. Furnace-specific equipment 1
3 may be provided in parallel with two or more sets for the overflow water from the sedimentation separator 12.

そして複数組の炉別装置を設ける場合、溢流水を並行し
て受け入れるようにしてもよく、或し、は溢流水を交互
に受け入れるようにしてもよい。これは次に説明するよ
うに、炉別装置の機能再生を効率よく行なうことができ
て有利である。即ち上述のようにして浄化された水は処
理水貯槽に貯えられるが、炉材層14及び15の炉材は
連続通水により、その表面に微細なフロッ外こよる膜が
形成され、次第に厚さを増し、炉別機能が低下すると共
に炉過抵抗が上昇する。
When a plurality of sets of reactor units are provided, overflow water may be received in parallel, or overflow water may be received alternately. This is advantageous in that the functions of the furnace-specific equipment can be efficiently regenerated, as will be explained below. That is, the water purified as described above is stored in the treated water storage tank, but due to continuous water flow through the furnace materials of the furnace material layers 14 and 15, a fine film of floc is formed on the surface, and the thickness gradually increases. As the temperature increases, the functions of each furnace decrease and the furnace overresistance increases.

そのため時間当り一定流量で送られてくる被処理水の流
通が次第に阻害され、炉別装置13内の水面は上昇する
。その水面が液面検知器19の検知部先端に達すると、
検知器19がラインポンプ18のモーター(図示せず)
に信号を送り、ポンプ18は処理水貯槽24内の水を炉
別装置13内に送りこむ作動を開始する。かくして送り
こまれた水は炉材層15及び14の炉材を逆洗し、炉村
表面に付着している微細フロックを洗い流し、フロック
を含有する洗浄水は集水管20から導水管21を経て排
出される。この排出される水は弁22′又は23を操作
することにより排水管22から擬棄されるか又は被処理
水の貯槽1に戻され、再度浄化処理に付される。即ち導
水管21によって排出されてくる水が、重金属等につい
ての廃棄規制値を上廻るときは、そのま〉放流すること
ができないので、このようなときは被処理水の貯槽1へ
戻し再処理に付すのである。なお集水管20の排水レベ
ルをフロックの沈降分離装直12の出口溢流壁より下位
に設ければ、集水管20からの排水開始後はサイホン現
象により、袋水管20の設置位置まで排出が続く。処理
水貯槽24には液面検知器25が設けられ、この検知器
25には、先端位置の異なる3本の検知具A,B及びC
が取付けられている。
Therefore, the flow of the water to be treated, which is sent at a constant flow rate per hour, is gradually obstructed, and the water level inside the furnace unit 13 rises. When the water surface reaches the tip of the detection part of the liquid level detector 19,
The detector 19 is the motor of the line pump 18 (not shown)
The pump 18 starts pumping the water in the treated water storage tank 24 into the furnace unit 13. The water thus sent backwashes the furnace material in the furnace material layers 15 and 14, washes away fine flocs adhering to the surface of the furnace layer, and the wash water containing flocs is discharged from the water collection pipe 20 via the water guide pipe 21. be done. This discharged water is either discharged from the drain pipe 22 by operating the valve 22' or 23, or is returned to the water tank 1 to be treated and subjected to purification treatment again. In other words, when the water discharged through the water pipe 21 exceeds the disposal regulation value for heavy metals, etc., it cannot be discharged as is, so in such a case, the water to be treated is returned to the storage tank 1 for reprocessing. It is attached to. In addition, if the drainage level of the water collection pipe 20 is set below the outlet overflow wall of the floc sedimentation separation unit straight 12, after the drainage from the water collection pipe 20 starts, the discharge continues to the installation position of the bag water pipe 20 due to the siphon phenomenon. . The treated water storage tank 24 is provided with a liquid level detector 25, and this detector 25 includes three detectors A, B, and C with different tip positions.
is installed.

そしてCは定常の水処理操作が連続的に行なわれ、貯槽
25が満杯になり、更にこの貯槽から水溢流が起る場合
、これを防止するためのものであり、その位置まで水位
が上昇してくれば、定常の水処理操作を停止(即ち、ポ
ンプ1′′′,28及び30の停止)する信号を送るの
である。Bは、上記炉別装置13内の炉材の逆洗浄のた
め、貯槽24から炉別装置13へ水の逆流が行なわれ、
貯槽24内の水位が下がってくるとき、水位がBの先端
位置に達した場合、水逆流を行なっているラインポンプ
18の作動を停止する信号を送るためである。Aは、貯
槽24内の水が極度に少なくなるとき、導出管26から
の空引きを防止するため、これに付されたポンプ(図示
せず)の停止又は作業員に注意を与える警報器を作動さ
せる信号を送るためのものである。以上のようにして貯
槽24から炉別装置13への逆洗浄用水の送給は液面検
知器25によって貯槽24内の水が一定位置まで低下す
るとき停止され、定常の水処理が続けられる。
C is to prevent water from overflowing when the storage tank 25 becomes full due to continuous water treatment operations, and the water level rises to that point. If so, a signal is sent to stop routine water treatment operations (ie, stop pumps 1''', 28, and 30). In B, water flows back from the storage tank 24 to the furnace unit 13 in order to backwash the furnace material in the furnace unit 13,
This is to send a signal to stop the operation of the line pump 18, which is performing water backflow, when the water level in the storage tank 24 decreases and reaches the tip position of B. When the water in the storage tank 24 becomes extremely low, in order to prevent empty water from being drawn from the outlet pipe 26, A is equipped with an alarm that stops the pump (not shown) attached to the tank 26 or alerts the operator. This is to send a signal to activate it. As described above, the supply of backwashing water from the storage tank 24 to the furnace unit 13 is stopped when the water in the storage tank 24 drops to a certain level by the liquid level detector 25, and regular water treatment is continued.

上述のように炉別装置13を複数個設置するときは、炉
材の逆洗浄が行なわれている以外の炉別装置は定常の水
処理を続けていてもよい。浄化された水は弁26′を開
くことによって導出管26から排出される。
When a plurality of furnace units 13 are installed as described above, the furnace units other than those in which backwashing of the furnace material is being performed may continue regular water treatment. Purified water is discharged from outlet pipe 26 by opening valve 26'.

この水処理で用いられる凝集剤としては硫酸アルミニウ
ム、明ばん、ポリ塩化アルミニウム等従釆知られている
如何なるものでも使用することができる。
As the flocculant used in this water treatment, any known flocculant such as aluminum sulfate, alum, polyaluminum chloride, etc. can be used.

そして処理された水を飲料水として再使用する場合には
アンギン酸ソーダが用いられ、更に殺菌のため次亜塩素
酸ソーダを注入するのがよい。添付図ではか)る薬剤を
注入する貯槽を2組(即ち27及び29)設けた場合を
例示したが、一方を明ばんのような凝集剤、他方を母調
整のためのアルカリの添加用等、適宜組合せて使用する
ことができる。上に説明し、図面に示したものは本発明
装置の一例であり、例えば水の進行は溢流を利用し、ポ
ンプ使用台数も少なくしてある。
If the treated water is to be reused as drinking water, sodium anginate is used, and sodium hypochlorite is preferably injected for sterilization. The attached drawing shows an example of a case where two sets of storage tanks (namely 27 and 29) are provided for injecting chemicals, one for flocculant such as alum and the other for adding alkali for mother adjustment, etc. , can be used in appropriate combination. What has been described above and shown in the drawings is an example of the apparatus of the present invention, in which, for example, overflow is used to advance water, and the number of pumps used is reduced.

このようにするときはトラックの床面積におさまる規模
のものとすることもでき、必要場所へトラックで機動的
に出向き水を処理することができる。勿論、本発明装置
を工場内に設置する場合には、大型のものとし、溢流に
よることなく夫々の水移送をポンプ使用によってもよい
ことはいうまでもない。しかしか)る場合でも、所要床
面積は従来の通常の水処理装置に比べて少なくてすむ。
また凝集剤等を原水に添加して急速混合を行なう装置は
図示のような位置に限られるものでなく、フロック形成
槽5に被処理水を供給する箇所より前の箇所であれば何
処であってもよい。その他、本発明装置はその要旨を逸
脱しない範囲で各種の変更、変形例をとることができる
ものである。次に本発明装置によって水処理を行なった
場合の実施例を説明するび下記の表に示す測定値を有す
る地下水を、添付図面に示す装置により、凝集剤として
ポリ塩化アルミニウムを用い(アルミナとして5肌)、
炉別装置の線速度7肌/時(充填炉材は上層に粒径1.
4柵のアンソラ、下層に粒径0.6柵の珪砂使用)で水
処理を行なった。
In this case, the system can be constructed on a scale that fits within the floor space of a truck, allowing the truck to move flexibly to the required location and treat the water. Of course, when the apparatus of the present invention is installed in a factory, it may be large-sized and each water transfer may be carried out by pumps without overflow. However, even in this case, the floor space required is less than that of conventional conventional water treatment equipment.
Furthermore, the device for rapidly mixing raw water by adding a flocculant etc. is not limited to the location shown in the figure, but may be located anywhere before the point where the water to be treated is supplied to the flocculation tank 5. It's okay. In addition, the device of the present invention can be modified in various ways without departing from the gist thereof. Next, we will explain an example in which water treatment was carried out using the apparatus of the present invention. Groundwater having the measured values shown in the table below was treated using polyaluminum chloride as a flocculant (as alumina) using the apparatus shown in the attached drawings. skin),
The linear velocity of the furnace equipment is 7 skins/hour (the packed furnace material has a particle size of 1.5 mm in the upper layer).
Water treatment was carried out using 4-bar anthracite and 0.6-bar grain size silica sand in the lower layer.

フロックの沈降分離装置及び炉別装置の夫々の出口にお
ける処理水の各測定値を下記表に示す。
Measured values of the treated water at the respective outlets of the floc sedimentation separation device and the furnace separation device are shown in the table below.

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

第1図は本発明装置の一例の全体略図、第2図は本発明
装置のフロック沈降分離装置における狭路部分の一例の
斜視略図、第3図は同狭路部分の一例の平面図である。 図中、IL‘ま被処理水の貯槽、3は急速混合槽、5は
フロック形成槽、61は邪魔板、12はフロックの沈降
分離装置、13は炉別装置、24は処理水貯糟、27及
び29は凝集剤等、添加薬剤の狩槽である。※′図 矛2図 外3図
Fig. 1 is an overall schematic diagram of an example of the apparatus of the present invention, Fig. 2 is a schematic perspective view of an example of a narrow passage section in the floc sedimentation separation apparatus of the apparatus of the present invention, and Fig. 3 is a plan view of an example of the narrow passage section. . In the figure, IL' is a storage tank for treated water, 3 is a rapid mixing tank, 5 is a flocculation tank, 61 is a baffle plate, 12 is a sedimentation separation device for flocs, 13 is a separate furnace device, 24 is a treated water tank, 27 and 29 are containers for additive chemicals such as flocculants. ※'Picture 2 outside 3 pictures

Claims (1)

【特許請求の範囲】 1 被処理水と凝集剤とを混和するための混合槽、この
混合槽からの凝集剤を混和した被処理水を緩慢に流下さ
せる堅形のフロツク形成槽、このフロツク形成槽の下部
に達した被処理水を斜め上向きに進ませ、その進行路途
中において、進行路を多数の狭路に区分し、被処理水に
混在するフロツクを重力分離させるフロツクの沈降分離
装置、この沈降分離装置の上部から排出される被処理水
を下向きに流し、水中に残存するフロツクを濾別する濾
材を有する濾別装置及びこの濾別装置から排出される被
処理水を貯える処理水貯槽を主要構成部となし、上記フ
ロツク形成槽の下部と上記フロツクの沈降分離装置の下
部とは共通しており、この共通部分にフロツク排出管が
設けられており、更に上記濾別装置の機能が低下すると
き、上記処理水貯槽内の水を濾別装置に送り濾材を逆洗
する逆洗機構が設けられ、逆洗が終つたときは正常運転
に戻るようにされてなる水処理装置。 2 混合槽は被処理水と凝集剤とを急速に撹拌するため
の撹拌機を備えたものである特許請求の範囲第1項記載
の水処理装置。 3 フロツク形成槽内に、被処理水がジグザク状に流れ
るよう邪魔板を設け、この邪魔板はその先端を下位にし
て僅かに傾斜してなる特許請求の範囲第1項記載の水処
理装置。 4 フロツクの沈降分離装置における狭路は横断面が三
角形、四角形又は六角形をなしている特許請求の範囲第
1項記載の水処理装置。 5 フロツクの沈降分離装置から排出される被処理水は
溢流によつて濾別装置に流入するようにされている特許
請求の範囲第1項記載の水処理装置。 6 濾別装置には、濾材の機能低下によつて起る被処理
水の液面上昇を一定位置で検知する液面検知器を設け、
この検知器の作動によつて処理水貯槽内の水を濾別装置
下部へ逆送するポンプが作動するようにしてなる特許請
求の範囲第1項記載の水処理装置。 7 処理水貯槽には、槽内の水位が一定位置まで減量す
るときこれを検知する液面検知器を設け、この液面検知
器が作動するとき、処理水貯槽から濾別装置下部へ水を
逆送するポンプが停止し、定常の水処理操作が継続され
るようにしてなる特許請求の範囲第1項又は第6項記載
の水処理装置。
[Scope of Claims] 1. A mixing tank for mixing the water to be treated and a flocculant, a rigid floc-forming tank in which the water to be treated mixed with the flocculant from the mixing tank slowly flows down, and a floc-forming tank for the flocculation. A floc sedimentation separator that causes the water to be treated that has reached the bottom of the tank to proceed obliquely upward, divides the path into a number of narrow paths in the middle of the path, and separates the flocs mixed in the water to be treated by gravity; The water to be treated discharged from the upper part of this sedimentation separation device flows downward and has a filter material that filters out the flocs remaining in the water. A treated water storage tank that stores the water to be treated discharged from this filtration device. The lower part of the floc formation tank and the lower part of the floc sedimentation and separation device are common, and a floc discharge pipe is provided in this common part, and the function of the filtration device is The water treatment device is provided with a backwash mechanism that sends the water in the treated water storage tank to the filtration device and backwashes the filter medium when the water decreases, and returns to normal operation when the backwashing is finished. 2. The water treatment apparatus according to claim 1, wherein the mixing tank is equipped with a stirrer for rapidly stirring the water to be treated and the flocculant. 3. The water treatment apparatus according to claim 1, wherein a baffle plate is provided in the floc formation tank so that the water to be treated flows in a zigzag pattern, and the baffle plate is slightly inclined with its tip facing downward. 4. The water treatment device according to claim 1, wherein the narrow passage in the floc sedimentation separation device has a triangular, quadrangular, or hexagonal cross section. 5. The water treatment device according to claim 1, wherein the water to be treated discharged from the floc sedimentation separation device flows into the filtration device by overflow. 6. The filtration separation device is equipped with a liquid level detector that detects a rise in the liquid level of the water to be treated due to a decline in the function of the filter medium at a certain position,
2. The water treatment device according to claim 1, wherein the operation of the detector activates a pump that sends the water in the treated water storage tank back to the lower part of the filtration device. 7 The treated water storage tank is equipped with a liquid level detector that detects when the water level in the tank decreases to a certain level, and when this liquid level detector is activated, water is discharged from the treated water storage tank to the lower part of the filtration device. 7. The water treatment device according to claim 1, wherein the pump for reverse feeding is stopped and normal water treatment operation is continued.
JP52138805A 1977-11-18 1977-11-18 water treatment equipment Expired JPS6028524B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52138805A JPS6028524B2 (en) 1977-11-18 1977-11-18 water treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52138805A JPS6028524B2 (en) 1977-11-18 1977-11-18 water treatment equipment

Publications (2)

Publication Number Publication Date
JPS5471472A JPS5471472A (en) 1979-06-08
JPS6028524B2 true JPS6028524B2 (en) 1985-07-05

Family

ID=15230639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52138805A Expired JPS6028524B2 (en) 1977-11-18 1977-11-18 water treatment equipment

Country Status (1)

Country Link
JP (1) JPS6028524B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006043626A (en) * 2004-08-06 2006-02-16 Hara Giken Kogyo:Kk Water treatment apparatus
JP4516899B2 (en) * 2005-08-04 2010-08-04 株式会社奥村組 Turbid water treatment equipment
JP4732229B2 (en) * 2006-04-28 2011-07-27 株式会社ニクニ Liquid processing equipment
JP4866256B2 (en) * 2007-02-05 2012-02-01 金造 久保 Sedimentation tank
JP6083737B2 (en) * 2013-02-27 2017-02-22 アマナス真和株式会社 Purification device
JP6247663B2 (en) * 2015-05-26 2017-12-13 初雁興業株式会社 Firewood system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49122150A (en) * 1973-03-30 1974-11-21
JPS51105671A (en) * 1975-03-14 1976-09-18 Mitsubishi Heavy Ind Ltd OSUISHORISETSUBINIOKERU KENDAKUEKI NO SORYUKANOSHUKUSOCHI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49122150A (en) * 1973-03-30 1974-11-21
JPS51105671A (en) * 1975-03-14 1976-09-18 Mitsubishi Heavy Ind Ltd OSUISHORISETSUBINIOKERU KENDAKUEKI NO SORYUKANOSHUKUSOCHI

Also Published As

Publication number Publication date
JPS5471472A (en) 1979-06-08

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