JPH115084A - Method of purifying water and water purifier - Google Patents
Method of purifying water and water purifierInfo
- Publication number
- JPH115084A JPH115084A JP15950997A JP15950997A JPH115084A JP H115084 A JPH115084 A JP H115084A JP 15950997 A JP15950997 A JP 15950997A JP 15950997 A JP15950997 A JP 15950997A JP H115084 A JPH115084 A JP H115084A
- Authority
- JP
- Japan
- Prior art keywords
- water
- separation membrane
- membrane device
- ozone
- sand filter
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 86
- 238000000926 separation method Methods 0.000 claims abstract description 83
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000000746 purification Methods 0.000 claims description 25
- 239000004576 sand Substances 0.000 abstract description 27
- 238000011144 upstream manufacturing Methods 0.000 abstract description 15
- 239000012535 impurity Substances 0.000 abstract description 6
- 230000001954 sterilising effect Effects 0.000 abstract description 6
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 5
- 230000000704 physical effect Effects 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract 2
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 239000000126 substance Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000005708 Sodium hypochlorite Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、浄水方法および浄
水装置に関し、特に、貯水槽やプールなどの水を浄化す
る際に適用すると有効なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification method and a water purification apparatus, and is particularly effective when applied to purify water in a water storage tank or a pool.
【０００２】[0002]
【従来の技術】貯水槽などの水を浄化する従来の浄水装
置の概略構成を図２に示す。図２に示すように、貯水槽
１内の水１００は、ストレーナ３１を介してポンプ３２
で汲み上げられ、精密濾過膜（Microfiltration:ＭＦ
膜）や限外濾過膜（Ultrafiltration:ＵＦ膜）などの分
離膜３３ａや、抗菌性を付与した銀着セラミックスフィ
ルタなどの各種のフィルタ３３ｂや、活性炭３３ｃなど
を各種組み合わせた固液分離器３３を通過させられた
後、滅菌器３４から次亜塩素酸ナトリウム等を注入され
てから、浄化水として利用されている。2. Description of the Related Art FIG. 2 shows a schematic configuration of a conventional water purification device for purifying water in a water storage tank or the like. As shown in FIG. 2, water 100 in the water storage tank 1 is supplied to a pump 32 through a strainer 31.
Microfiltration: MF
Separation membrane 33a such as membrane) and ultrafiltration membrane (Ultrafiltration: UF membrane), various filters 33b such as silver-coated ceramics filter with antibacterial property, and solid-liquid separator 33 combining various types of activated carbon 33c. After passing through, sodium hypochlorite and the like are injected from the sterilizer 34 and then used as purified water.
【０００３】[0003]
【発明が解決しようとする課題】前述したような従来の
浄水装置では、固液分離器３３の分離膜３３ａやフィル
タ３３ｂなどが浄化中に目詰まりを起こしてしまうた
め、運転を一時中断して、分離膜３３ａやフィルタ３３
ｂ等のカートリッジ交換や分解洗浄またはエアや水によ
る逆洗を行わなければならず、手間が非常にかかってし
まうだけでなく、効率が悪かった。In the conventional water purifier described above, the separation membrane 33a and the filter 33b of the solid-liquid separator 33 are clogged during purification, so that the operation is temporarily stopped. , Separation membrane 33a and filter 33
The cartridge must be replaced, disassembled and cleaned, or backwashed with air or water. This not only requires a lot of trouble but also results in poor efficiency.
【０００４】具体的には、例えば、孔径が１μｍ、０．
５μｍ、０．１μｍの三重フィルタで構成された固液分
離器において、１０ヵ月間放置した学校プールの水を浄
化処理した場合、処理水量１０ｍ3 でフィルタが目詰ま
りを起こし、処理流量が初期の１／３となり、約１０時
間ほどでカートリッジ交換が必要となってしまうのであ
る。[0004] Specifically, for example, a hole diameter is 1 µm, and a hole diameter is 0.1 µm.
In a solid-liquid separator composed of triple filters of 5 μm and 0.1 μm, when the water in the school pool left for 10 months is purified, the filter becomes clogged with a treated water volume of 10 m 3 , and the treatment flow rate is reduced. That is, the cartridge needs to be replaced in about 10 hours.
【０００５】また、上述したような固液分離器３３で
は、空気等からの汚染により一般細菌が検出されること
があり、処理水を無菌状態で扱うことが困難であるた
め、水の安全性確保に多大な手間を要してしまう。[0005] In the solid-liquid separator 33 as described above, general bacteria may be detected due to contamination from air or the like, and it is difficult to treat treated water in an aseptic state. It takes a lot of time to secure.
【０００６】このようなことから、本発明は、水を効率
よく浄化しながらも水の安全性確保の容易な浄水方法お
よび浄水装置を提供することを目的とした。[0006] In view of the above, an object of the present invention is to provide a water purification method and a water purification apparatus that can easily purify water while ensuring the safety of water.
【０００７】[0007]
【課題を解決するための手段】前述した目的を達成する
ための、本発明による浄水方法は、分離膜装置内の分離
膜に水を流通させて当該水を浄化する浄水方法であっ
て、前記分離膜装置に供給する前の前記水にオゾンを混
合すると共に、前記分離膜装置内に流入した前記水の一
部を前記分離膜に通過させずに当該分離膜装置の外部へ
送出するように当該水をクロスフローさせることを特徴
とする。In order to achieve the above-mentioned object, a water purification method according to the present invention is a water purification method for purifying water by flowing water through a separation membrane in a separation membrane device. Along with mixing ozone with the water before being supplied to the separation membrane device, a part of the water flowing into the separation membrane device is sent out of the separation membrane device without passing through the separation membrane. The water is cross-flowed.
【０００８】前述した目的を達成するための、本発明に
よる浄水装置は、分離膜に水を通過させることにより当
該水を浄化する分離膜装置を備えた浄水装置であって、
前記分離膜装置に供給する前の前記水にオゾンを混合す
るオゾン混合手段と、前記分離膜装置内に流入した前記
水の一部を前記分離膜に通過させずに当該分離膜装置の
外部へ送出するクロスフロー手段とを備えてなることを
特徴とする。[0008] In order to achieve the above-mentioned object, a water purification device according to the present invention is a water purification device provided with a separation membrane device for purifying water by passing water through the separation membrane,
Ozone mixing means for mixing ozone with the water before being supplied to the separation membrane device, and to the outside of the separation membrane device without passing a part of the water flowing into the separation membrane device through the separation membrane. And a cross-flow means for sending.
【０００９】[0009]
【発明の実施の形態】本発明による浄水方法および浄水
装置の実施の形態を図１を用いて説明する。なお、図１
は、その装置の全体概略構成図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a water purification method and a water purification apparatus according to the present invention will be described with reference to FIG. FIG.
1 is an overall schematic configuration diagram of the device.
【００１０】図１に示すように、貯水槽１内には、当該
貯水槽１内の水１００をストレーナ２を介して吸い上げ
る水中ポンプ３が配設されている。水中ポンプ３は、主
に懸濁物質（約２０μｍ以上）を除去する砂濾過器５内
の上流部に配備された三方弁６の口６ａに配管４を介し
て連結されている。この三方弁６は、口６ｂが砂濾過器
５内と連通し、口６ｃが配管８を介して前記貯水槽１内
に連絡している。As shown in FIG. 1, a submersible pump 3 for sucking water 100 in the water storage tank 1 through a strainer 2 is provided in the water storage tank 1. The submersible pump 3 is connected via a pipe 4 to a port 6a of a three-way valve 6 provided mainly at an upstream portion in a sand filter 5 for removing suspended substances (about 20 μm or more). The three-way valve 6 has a port 6 b communicating with the inside of the sand filter 5, and a port 6 c communicating with the inside of the water storage tank 1 via a pipe 8.
【００１１】前記砂濾過器５内の下流部には、三方弁７
が配備されている。この三方弁７は、口７ａが当該砂濾
過器５の外側の耐オゾン性を有する渦流ポンプからなる
ブースタポンプ１５の受入口に配管１０を介して連結さ
れ、口７ｂが砂濾過器５内と連通し、口７ｃが配管９を
介して前記配管４に連結されている。A three-way valve 7 is provided downstream of the sand filter 5.
Has been deployed. The three-way valve 7 has a port 7a connected via a pipe 10 to a receiving port of a booster pump 15 formed of an ozone-resistant vortex pump outside the sand filter 5, and a port 7b connected to the inside of the sand filter 5. The port 7 c is connected to the pipe 4 via a pipe 9.
【００１２】前記配管１０の途中には、配管１１の一端
が連結されている。配管１１の途中には、オゾン発生装
置１２が連結されている。配管１１の他端は、耐オゾン
性を有する渦流ポンプからなる吸引混合ポンプ１３の吸
引口に連結されている。吸引混合ポンプ１３の送出口
は、前記配管４の前記配管９との連結部分よりも上流側
に配管１４を介して連結されている。なお、本実施の形
態では、配管１１，１４、オゾン発生装置１２、吸引混
合ポンプ１３などによりオゾン混合手段を構成してい
る。One end of a pipe 11 is connected to the middle of the pipe 10. An ozone generator 12 is connected in the middle of the pipe 11. The other end of the pipe 11 is connected to a suction port of a suction mixing pump 13 composed of an ozone-resistant vortex pump. The delivery port of the suction / mixing pump 13 is connected via a pipe 14 upstream of a connection portion of the pipe 4 with the pipe 9. In this embodiment, ozone mixing means is constituted by the pipes 11 and 14, the ozone generator 12, the suction mixing pump 13, and the like.
【００１３】前記ブースタポンプ１５の送出口は、不純
物（０．２μｍ以上）の除去を行う耐オゾン性を有する
アルミナ製の精密濾過膜などの分離膜１７ａを備えた分
離膜装置１７の上流部に配管１６を介して連結されてい
る。この分離膜装置１７の上流部には、クロスフロー手
段となる配管１８の一端が連結されている。配管１８の
他端は、前記配管４の前記配管１４との連結部分よりも
上流側に連結されている。上記分離膜装置１７の下流部
は、アルデヒド類やトリハロメタン前駆物質などの低分
子量の有機物質を吸着除去する活性炭装置２０の上流部
に配管１９を介して連結されている。活性炭装置２０の
下流部には、配管２１が連結されている。配管２１の途
中には、次亜塩素酸ナトリウム等を注入する滅菌器２２
が連結されている。The delivery port of the booster pump 15 is located upstream of a separation membrane device 17 provided with a separation membrane 17a such as an ozone-resistant microfiltration membrane made of alumina for removing impurities (0.2 μm or more). They are connected via a pipe 16. One end of a pipe 18 serving as a cross flow means is connected to an upstream portion of the separation membrane device 17. The other end of the pipe 18 is connected to an upstream side of a connection portion of the pipe 4 with the pipe 14. A downstream portion of the separation membrane device 17 is connected via a pipe 19 to an upstream portion of an activated carbon device 20 for adsorbing and removing low-molecular-weight organic substances such as aldehydes and trihalomethane precursors. A pipe 21 is connected to a downstream portion of the activated carbon device 20. A sterilizer 22 for injecting sodium hypochlorite or the like is provided in the middle of the pipe 21.
Are connected.
【００１４】このような浄水装置を用いた浄水方法を次
に説明する。まず、砂濾過器５内の三方弁６の口６ｃを
閉じるように口６ａ，６ｂを連通させると共に、三方弁
７の口７ｃを閉じるように口７ａ，７ｂを連通させてお
く。次に、貯水槽１内の水１００をストレーナ２を介し
て水中ポンプ３で吸い上げると、当該水１００は、配管
４を介して三方弁６の口６ｂから砂濾過器５の上流部内
に流入し、当該砂濾過器５内を流通して主に懸濁物質
（約２０μｍ以上）を除去されながら三方弁７の口７ｂ
から配管１０内に流入する。A water purification method using such a water purification device will be described below. First, the ports 6a and 6b are communicated so as to close the port 6c of the three-way valve 6 in the sand filter 5, and the ports 7a and 7b are communicated so as to close the port 7c of the three-way valve 7. Next, when the water 100 in the water storage tank 1 is sucked up by the submersible pump 3 through the strainer 2, the water 100 flows into the upstream part of the sand filter 5 from the port 6 b of the three-way valve 6 through the pipe 4. While flowing through the sand filter 5 to remove mainly suspended substances (about 20 μm or more) while opening the port 7 b of the three-way valve 7.
Flows into the pipe 10 from the
【００１５】配管１０内に流入した水１００の一部は、
配管１１内に流入し、オゾン発生器１２からオゾンを供
給されて吸引混合ポンプ１３で当該オゾンと混合された
後、配管１４を介して前記配管４に戻されて砂濾過器５
の上流部内に再び送給されることにより、オゾンの酸化
分解作用および殺菌作用で砂濾過器５内の有機物質の酸
化分解や殺菌等を行う。つまり、砂濾過器５をオゾン水
で殺菌等すると共に、当該殺菌等にあたって、上記砂濾
過器５で懸濁物質を除去した水１００の一部を利用する
ようにしたのである。A part of the water 100 flowing into the pipe 10 is
After flowing into the pipe 11, the ozone is supplied from the ozone generator 12 and mixed with the ozone by the suction / mixing pump 13, the ozone is returned to the pipe 4 via the pipe 14 and the sand filter 5 is returned.
Is re-supplied into the upstream portion of the sand filter 5 to perform oxidative decomposition and sterilization of the organic substance in the sand filter 5 by the oxidative decomposition and sterilization of ozone. That is, the sand filter 5 is sterilized with ozone water, and a part of the water 100 from which the suspended matter has been removed by the sand filter 5 is used for the sterilization and the like.
【００１６】一方、配管１０からブースタポンプ１５に
より配管１６を介して分離膜装置１７の上流部に送給さ
れた水１００は、当該分離膜装置１７内を流通して不純
物を除去されると共に、前記オゾンの化学的作用および
殺菌力等により、当該分離膜装置１７の目詰まりの原因
となる有機物質を酸化分解しながら分離膜１７ａの消毒
等を行う。On the other hand, the water 100 fed from the pipe 10 to the upstream portion of the separation membrane device 17 by the booster pump 15 via the pipe 16 flows through the separation membrane device 17 to remove impurities, Due to the chemical action and sterilizing power of the ozone, the separation membrane 17a is disinfected while oxidizing and decomposing an organic substance causing clogging of the separation membrane device 17.
【００１７】さらに、上記分離膜装置１７の上流部に流
入した上記水１００の一部は、当該分離膜装置１７の分
離膜１７ａを流通することなく配管１８内に流入し、当
該分離膜装置１７の外部に送出されて前記配管４内に流
入し、貯水槽１および前記配管１４からの水１００と共
に砂濾過器５内に再び送給される、すなわち、還流され
ることにより、当該分離膜装置１７内にクロスフローを
生じさせ、当該クロスフローによる水流の物理的作用で
当該分離膜装置１７の分離膜１７ａの目詰まりが除去さ
れる。つまり、オゾンを含有する水１００を分離膜装置
１７内でクロスフローさせることにより、水１００の不
純物を除去しながら分離膜装置１７内の分離膜１７ａの
目詰まり除去および殺菌等をできるようにしたのであ
る。Further, a part of the water 100 flowing into the upstream portion of the separation membrane device 17 flows into the pipe 18 without flowing through the separation membrane 17a of the separation membrane device 17, To the outside of the pipe 4 and flow into the pipe 4 and are again fed into the sand filter 5 together with the water 100 from the water storage tank 1 and the pipe 14, that is, by being refluxed, the separation membrane device A cross-flow is generated in the inside 17, and the clogging of the separation membrane 17 a of the separation membrane device 17 is removed by the physical action of the water flow due to the cross-flow. That is, by causing the water 100 containing ozone to cross-flow in the separation membrane device 17, it is possible to remove clogging and sterilize the separation membrane 17a in the separation membrane device 17 while removing impurities of the water 100. It is.
【００１８】このようにして分離膜装置１７で不純物を
除去された水１００は、配管１９を介して活性炭装置２
０内に送給されて有機物質等を吸着除去された後、配管
２１に流入し、滅菌器２２から次亜塩素酸ナトリウム等
を注入されることにより、浄化水として利用される。The water 100 from which impurities have been removed by the separation membrane device 17 in this way is supplied to the activated carbon device 2 via a pipe 19.
After being fed into the chamber 0 and adsorbing and removing organic substances and the like, it flows into the pipe 21 and is injected with sodium hypochlorite and the like from the sterilizer 22 to be used as purified water.
【００１９】以上のようにして水１００の浄化運転を所
定期間行ったら、前記三方弁６の口６ａを閉じて口６
ｂ，６ｃを連通させるように当該三方弁６を操作すると
共に、前記三方弁７の口７ａを閉じて口７ｂ，７ｃを連
通させるように当該三方弁７を操作すると、ストレーナ
２を介して水中ポンプ３で吸い上げられる貯水槽１内の
水１００が配管４を介して配管９内に流入し、三方弁７
の口７ｃから砂濾過器５の下流部内に流入し、当該砂濾
過器５内を上流部へ向かうように逆流しながら三方弁６
の口６ｂから配管８内に流入し、貯水槽１内に再び戻さ
れることにより、砂濾過器５は逆洗されて内部に蓄積さ
れてしまう不純物が外部に排出される。After the water 100 is purified for a predetermined period as described above, the port 6a of the three-way valve 6 is closed and the port 6a is closed.
When the three-way valve 6 is operated so that the b and 6c communicate with each other, and the three-way valve 7 is operated so as to close the port 7a of the three-way valve 7 and communicate the ports 7b and 7c, the underwater flows through the strainer 2. The water 100 in the water storage tank 1 sucked up by the pump 3 flows into the pipe 9 via the pipe 4, and is supplied to the three-way valve 7.
The three-way valve 6 flows into the downstream portion of the sand filter 5 from the opening 7c of the sand filter 5 and flows backward in the sand filter 5 toward the upstream portion.
Flows into the pipe 8 through the opening 6b and returns to the water storage tank 1 again, whereby the sand filter 5 is backwashed and impurities accumulated in the sand filter 5 are discharged to the outside.
【００２０】したがって、このような浄水装置によれ
ば、水１００を浄化しながら砂濾過器５の殺菌および分
離膜装置１７の目詰まり防止や殺菌等を行うことができ
るので、水１００を長時間にわたって効率よく浄化しな
がら水１００の安全性を容易に確保することができる。
このため、このような浄水装置をプール等の浄水の際に
適用すれば、プールの水に投与する殺菌用塩素系剤の使
用量を大幅に削減することができ、プールの維持管理に
かかるコストを大幅に低減することができると共に、維
持管理の省人化を図ることができる。Therefore, according to such a water purifier, it is possible to sterilize the sand filter 5 and prevent clogging and sterilization of the separation membrane device 17 while purifying the water 100. The safety of the water 100 can be easily ensured while efficiently purifying the water.
For this reason, if such a water purification device is applied to water purification in a pool or the like, the amount of chlorine-based disinfecting agents to be administered to the water in the pool can be significantly reduced, and the cost of maintaining and managing the pool can be reduced. Can be greatly reduced, and labor saving of maintenance can be achieved.
【００２１】このような浄水装置の効果を確認するた
め、約一年間放置した屋外防火水槽の水の浄化試験を行
ったところ、分離膜装置に流入させる水量当たりのオゾ
ン注入量を２ｍｇ／リットルとし、水を１ｍ3 ／ｈの流
量で処理した場合には、保健所の水質分析一般項目に適
合して飲料可能な評価の浄化水を得ることができた。ま
た、この確認試験の際、分離膜装置の分離膜を通過する
水の量が試験開始後５０時間経っても変化せず、その後
も長時間連続運転することができ、飲料可能な水質を維
持することができた。In order to confirm the effect of such a water purifier, a water purification test was performed on an outdoor fire protection tank that had been left for about one year. The ozone injection amount per water flow into the separation membrane device was 2 mg / liter. When the water was treated at a flow rate of 1 m 3 / h, it was possible to obtain purified water that was evaluated as drinkable in conformity with the general items of water quality analysis at public health centers. In addition, during this confirmation test, the amount of water passing through the separation membrane of the separation membrane device does not change even after 50 hours from the start of the test, and can be continuously operated for a long time thereafter to maintain drinkable water quality. We were able to.
【００２２】なお、本実施の形態では、吸引混合ポンプ
１３に耐オゾン性を有する渦流ポンプを適用したが、当
該吸引混合ポンプ１３に代えて、耐オゾン性を有する通
常のポンプとエジェクタとを組み合わせたものを用いる
ことも可能である。In this embodiment, an ozone-resistant vortex pump is used as the suction / mixing pump 13. However, instead of the suction / mixing pump 13, a normal ozone-resistant pump and an ejector are combined. Can be used.
【００２３】また、本実施の形態では、分離膜装置１７
の分離膜１７ａの単位面積時間当たりの通過水量を十分
に確保するため（２ｍ3 ／ｍ2 ・ｈ）にブースタポンプ
１５を使用したが、分離膜装置１７の分離膜１７ａの種
類等によって、砂濾過器５の送出口部分での残圧でも分
離膜装置１７の分離膜を通過させることができる場合に
はブースタポンプ１５を省くことも可能である。In this embodiment, the separation membrane device 17 is used.
Although the booster pump 15 was used to secure a sufficient amount of water passing through the separation membrane 17a per unit area time (2 m 3 / m 2 · h), depending on the type of the separation membrane 17a of the separation membrane device 17, If the residual pressure at the outlet of the filter 5 can be passed through the separation membrane of the separation membrane device 17, the booster pump 15 can be omitted.
【００２４】また、本実施の形態では、オゾンを混合し
た水１００を砂濾過器５に一旦送給してから分離膜装置
１７に送給するようにしたが、分離膜装置１７に直接送
給することも可能である。Further, in the present embodiment, the water 100 mixed with ozone is once supplied to the sand filter 5 and then supplied to the separation membrane device 17, but is directly supplied to the separation membrane device 17. It is also possible.
【００２５】[0025]
【発明の効果】本発明による浄水方法では、分離膜装置
内の分離膜に水を流通させて当該水を浄化する浄水方法
であって、前記分離膜装置に供給する前の前記水にオゾ
ンを混合すると共に、前記分離膜装置内に流入した前記
水の一部を前記分離膜に通過させずに当該分離膜装置の
外部へ送出するように当該水をクロスフローさせること
から、水の浄化処理を行いながら分離膜装置の分離膜を
殺菌すると共に、分離膜の目詰まりを防止することがで
きるので、水を長時間にわたって効率よく浄化しながら
水の安全性を容易に確保することができる。The water purification method according to the present invention is a water purification method for purifying water by circulating water through a separation membrane in a separation membrane device, wherein ozone is added to the water before being supplied to the separation membrane device. Mixing and cross-flowing the water so that a part of the water flowing into the separation membrane device is sent to the outside of the separation membrane device without passing through the separation membrane. The separation membrane of the separation membrane device can be sterilized while performing the separation, and clogging of the separation membrane can be prevented, so that the safety of water can be easily secured while efficiently purifying water for a long time.
【００２６】本発明による浄水装置では、分離膜に水を
通過させることにより当該水を浄化する分離膜装置を備
えた浄水装置であって、前記分離膜装置に供給する前の
前記水にオゾンを混合するオゾン混合手段と、前記分離
膜装置内に流入した前記水の一部を前記分離膜に通過さ
せずに当該分離膜装置の外部へ送出するクロスフロー手
段とを備えてなることから、水の浄化処理を行いながら
分離膜装置の分離膜を殺菌すると共に、分離膜の目詰ま
りを防止することができるので、水を長時間にわたって
効率よく浄化しながら水の安全性を容易に確保すること
ができる。In the water purification apparatus according to the present invention, there is provided a water purification apparatus provided with a separation membrane device for purifying the water by passing the water through the separation membrane, wherein ozone is added to the water before being supplied to the separation membrane device. Since it comprises ozone mixing means for mixing, and cross-flow means for sending a part of the water flowing into the separation membrane device to the outside of the separation membrane device without passing through the separation membrane, water It is possible to sterilize the separation membrane of the separation membrane device while purifying the water and prevent clogging of the separation membrane. Therefore, it is possible to easily secure water safety while efficiently purifying water for a long time. Can be.
【図１】本発明による浄水装置の実施の形態の全体概略
構成図である。FIG. 1 is an overall schematic configuration diagram of an embodiment of a water purification device according to the present invention.
【図２】従来の浄水装置の一例の全体概略構成図であ
る。FIG. 2 is an overall schematic configuration diagram of an example of a conventional water purification device.
１ 貯水槽 ２ ストレーナ ３ 水中ポンプ ４，８〜１１，１４，１６，１８，１９，２１ 配管 ５ 砂濾過器 ６，７ 三方弁 ６ａ〜６ｃ，７ａ〜７ｃ 口 １２ オゾン発生装置 １３ 吸引混合ポンプ １５ ブースタポンプ １７ 分離膜装置 ２０ 活性炭装置 ２２ 滅菌器 DESCRIPTION OF SYMBOLS 1 Water tank 2 Strainer 3 Submersible pump 4,8-11,14,16,18,19,21 Piping 5 Sand filter 6,7 Three-way valve 6a-6c, 7a-7c Port 12 Ozone generator 13 Suction mixing pump 15 Booster pump 17 Separation membrane device 20 Activated carbon device 22 Sterilizer
フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０２Ｆ 1/50 ５１０ Ｃ０２Ｆ 1/50 ５１０Ｂ ５３１ ５３１Ｒ ５４０ ５４０Ａ ５５０ ５５０Ａ ５６０ ５６０Ｅ Continued on the front page (51) Int.Cl. 6 Identification symbol FI C02F 1/50 510 C02F 1/50 510B 531 531R 540 540A 550 550A 560 560E
Claims (2)
当該水を浄化する浄水方法であって、前記分離膜装置に
供給する前の前記水にオゾンを混合すると共に、前記分
離膜装置内に流入した前記水の一部を前記分離膜に通過
させずに当該分離膜装置の外部へ送出するように当該水
をクロスフローさせることを特徴とする浄水方法。1. A water purification method for purifying water by flowing water through a separation membrane in a separation membrane device, wherein ozone is mixed into the water before being supplied to the separation membrane device, and A water purification method, wherein the water is cross-flowed so that a portion of the water flowing into the device is sent to the outside of the separation membrane device without passing through the separation membrane.
水を浄化する分離膜装置を備えた浄水装置であって、前
記分離膜装置に供給する前の前記水にオゾンを混合する
オゾン混合手段と、前記分離膜装置内に流入した前記水
の一部を前記分離膜に通過させずに当該分離膜装置の外
部へ送出するクロスフロー手段とを備えてなることを特
徴とする浄水装置。2. A water purifier having a separation membrane device for purifying water by passing water through the separation membrane, wherein the ozone mixing means mixes ozone with the water before supplying the water to the separation membrane device. And a cross-flow means for sending a part of the water flowing into the separation membrane device to the outside of the separation membrane device without passing the water through the separation membrane device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15950997A JP3564261B2 (en) | 1997-06-17 | 1997-06-17 | Water purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15950997A JP3564261B2 (en) | 1997-06-17 | 1997-06-17 | Water purification equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH115084A true JPH115084A (en) | 1999-01-12 |
| JP3564261B2 JP3564261B2 (en) | 2004-09-08 |
Family
ID=15695337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15950997A Expired - Fee Related JP3564261B2 (en) | 1997-06-17 | 1997-06-17 | Water purification equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3564261B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002188184A (en) * | 2000-12-22 | 2002-07-05 | Giken Seisakusho Co Ltd | Water treatment method for civil engineering work |
| WO2010046960A1 (en) * | 2008-10-20 | 2010-04-29 | Ikuta Kazumasa | Container type water purifying device |
| WO2015136902A1 (en) * | 2014-03-14 | 2015-09-17 | パナソニックＩｐマネジメント株式会社 | Water treatment device |
-
1997
- 1997-06-17 JP JP15950997A patent/JP3564261B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002188184A (en) * | 2000-12-22 | 2002-07-05 | Giken Seisakusho Co Ltd | Water treatment method for civil engineering work |
| WO2010046960A1 (en) * | 2008-10-20 | 2010-04-29 | Ikuta Kazumasa | Container type water purifying device |
| JPWO2010046960A1 (en) * | 2008-10-20 | 2012-03-15 | 生田 尚之 | Container type water purification system |
| WO2015136902A1 (en) * | 2014-03-14 | 2015-09-17 | パナソニックＩｐマネジメント株式会社 | Water treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3564261B2 (en) | 2004-09-08 |
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