JPH02149397A - Water treatment apparatus - Google Patents
Water treatment apparatusInfo
- Publication number
- JPH02149397A JPH02149397A JP63300024A JP30002488A JPH02149397A JP H02149397 A JPH02149397 A JP H02149397A JP 63300024 A JP63300024 A JP 63300024A JP 30002488 A JP30002488 A JP 30002488A JP H02149397 A JPH02149397 A JP H02149397A
- Authority
- JP
- Japan
- Prior art keywords
- phosphoric acid
- water
- activated carbon
- treated
- concentration
- 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 77
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 175
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 101
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 87
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000009287 sand filtration Methods 0.000 claims abstract description 10
- 238000004062 sedimentation Methods 0.000 claims abstract description 8
- 230000001112 coagulating effect Effects 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 21
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 16
- 239000002352 surface water Substances 0.000 abstract description 7
- 230000007423 decrease Effects 0.000 abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 abstract description 4
- 235000011007 phosphoric acid Nutrition 0.000 description 68
- 244000005700 microbiome Species 0.000 description 5
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- -1 ammonia ions Chemical class 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000002503 metabolic effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は上水道の浄水処理等に用いられる水処理装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a water treatment device used for water purification treatment of waterworks and the like.
（従来の技術）
近年、活性炭に微生物を付着させた生物活性炭を用いて
河川、湖沼、ダム等の表流水を浄水処理する方法が注目
されている。この水処理方法は一般に被処理水中の懸濁
物を凝集沈澱させて砂ろ過で除去した後、被処理水中に
溶存している有機物等の溶存物質をオゾンで分解・除臭
し、分解された溶存物質（例えば有機物とアンモニアイ
オン）を生物活性炭で除去するものである。(Prior Art) In recent years, a method of purifying surface water from rivers, lakes, dams, etc. using biological activated carbon in which microorganisms are attached to activated carbon has been attracting attention. This water treatment method generally involves coagulating and precipitating suspended solids in the water to be treated, removing them through sand filtration, and then decomposing and deodorizing dissolved substances such as organic matter in the water to be treated with ozone. Dissolved substances (e.g. organic matter and ammonia ions) are removed using biological activated carbon.
このような水処理方法に使用される生物活性炭は、被処
理水中に含まれる燐酸で活性炭表面に付着した微生物を
増殖しながら有機物等の溶存物質を除去するものである
が、被処理水中の燐酸濃度は季節的に大きく変動し、活
性炭表面に付着した微生物を被処理水中の燐酸で増殖さ
せることができなくなる虞れがある。これは河川、湖沼
等では春から夏にかけてプランクトンや藻などが繁殖し
、表流水中の燐を細胞内に取込んでしまい、表流水中の
燐酸濃度が春から夏にかけて減少するためである。Biological activated carbon used in such water treatment methods removes dissolved substances such as organic matter while multiplying microorganisms attached to the activated carbon surface using phosphoric acid contained in the water to be treated. The concentration varies greatly depending on the season, and there is a risk that the phosphoric acid in the water to be treated will not be able to propagate microorganisms attached to the activated carbon surface. This is because plankton and algae breed in rivers, lakes, etc. from spring to summer and take phosphorus from surface water into cells, causing the phosphoric acid concentration in surface water to decrease from spring to summer.
第４図は生物活性炭による水処理効果をＤＯＣ（溶存有
機炭素）の除去率変化で示したもので、図中の（Ｉ）は
活性炭の吸着効果によるもの、（ｎ）は活性炭による吸
着が飽和に達し微生物による体謝除去によるもの、（Ｉ
［）は被処理水中に燐酸不足が生じ微生物活性機能が低
下した状態、（ＩＶ）は被処理水中の燐酸不足が解消し
再び微生物による体謝除去が行なわれている状態をそれ
ぞれ示したものであり、（ＩＩＩ）の状態は春から夏に
かけてオルト燐酸の燐が５μｇ／ｐ以下になると現われ
やすい。Figure 4 shows the water treatment effect of biological activated carbon as a change in DOC (dissolved organic carbon) removal rate. due to metabolic removal by microorganisms, (I
[) indicates a state in which phosphoric acid deficiency has occurred in the water to be treated and the microbial activity function has decreased, and (IV) indicates a state in which the phosphoric acid deficiency in the water to be treated has been resolved and metabolic removal by microorganisms is being performed again. Condition (III) is likely to occur when the phosphorus content of orthophosphoric acid is less than 5 μg/p from spring to summer.
（発明が解決しようとする課題）
上述したように従来では生物活性炭を用いて水処理を行
なった場合、生物活性炭の除去性能が春から夏にかけて
低下し、安定した除去性能を得ることができなかった。(Problems to be Solved by the Invention) As mentioned above, when water treatment is conventionally performed using biological activated carbon, the removal performance of biological activated carbon decreases from spring to summer, making it impossible to obtain stable removal performance. Ta.
そこで、本発明は上記のような問題点に鑑みてなされた
ものであり、生物活性炭の除去性能が季節的に大きく変
動することがなく、常に安定した除去性能を得られる水
処理装置を提供することを目的とするものである。Therefore, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a water treatment device that can always obtain stable removal performance without significant seasonal fluctuations in the removal performance of biological activated carbon. The purpose is to
［発明の構成コ
（課題を解決するための手段）
上記課題を解決するために請求項１記載の本発明は、被
処理水中の懸濁物を凝集沈澱させて砂ろ過で除去した後
、被処理水中に溶存している溶存物質をオゾンで分解・
防臭し、分解された溶存物質を生物活性炭で除去する水
処理装置において、前記生物活性炭に導入される被処理
水中の燐酸濃度を測定する燐酸濃度分析計゛Ｉと、この
燐酸濃度分析計からの信号を受けて被処理水中の燐酸濃
度が所定濃度より低い場合に前記生物活性炭の前段に燐
酸溶液を注入する燐酸溶液注入装置を設けたことを特徴
とするものである。[Constitution of the Invention (Means for Solving the Problems) In order to solve the above problems, the present invention according to claim 1 provides a method of coagulating and sedimenting suspended matter in water to be treated and removing it by sand filtration. Dissolved substances dissolved in treated water are decomposed and
A water treatment device that deodorizes and removes decomposed dissolved substances using biological activated carbon includes a phosphoric acid concentration analyzer I that measures the phosphoric acid concentration in the water to be treated that is introduced into the biological activated carbon, and a phosphoric acid concentration analyzer The present invention is characterized in that a phosphoric acid solution injection device is provided that receives a signal and injects a phosphoric acid solution upstream of the biological activated carbon when the phosphoric acid concentration in the water to be treated is lower than a predetermined concentration.
また、請求項２記載の本発明は被処理水中の懸濁物を凝
集沈澱させて砂ろ過で除去した後、被処理水中に溶存し
ている溶存物質をオゾンで分解・防臭し、分解された溶
存物質を生物活性炭で除去する水処理装置において、前
記生物活性炭に導入される被処理水中の燐酸濃度を測定
する燐酸分析計と、この燐酸分析計からの信号を受けて
被処理水中の燐酸濃度が所定濃度より低い場合に前記凝
集沈澱工程の前段にオゾンを注入するオゾン注入装置を
設けたことを特徴とするものである。In addition, the present invention as set forth in claim 2 is characterized in that after the suspended matter in the water to be treated is coagulated and precipitated and removed by sand filtration, the dissolved substances dissolved in the water to be treated are decomposed and deodorized with ozone. A water treatment device that removes dissolved substances using biological activated carbon includes a phosphoric acid analyzer that measures the phosphoric acid concentration in the water to be treated that is introduced into the biological activated carbon, and a phosphoric acid analyzer that measures the phosphoric acid concentration in the water to be treated by receiving a signal from the phosphoric acid analyzer. The present invention is characterized in that an ozone injection device is provided for injecting ozone before the coagulation and precipitation step when the concentration of ozone is lower than a predetermined concentration.
（作 用）
請求項１記載の本発明においては、生物活性炭に導入さ
れる被処理水中の燐酸濃度を燐酸濃度分析計で測定し、
その測定値が所定濃度より低い場合には生物活性炭の前
段に燐酸溶液を燐酸溶液注入装置より注入することによ
り、生物活性炭に導入される被処理水中の燐酸濃度を所
定濃度以上に保つことができる。７
また、請求項２記載の本発明においては、生物活性炭に
導入される被処理水中の燐酸濃度を燐酸濃度分析計で測
定し、その測定値が所定濃度より低い場合には凝集沈澱
工程の前段にオゾンをオゾン注入装置より注入すること
により、生物活性炭に導入される被処理水中の燐酸濃度
を所定濃度以上に保つことができる。(Function) In the present invention according to claim 1, the phosphoric acid concentration in the water to be treated that is introduced into the biological activated carbon is measured with a phosphoric acid concentration analyzer,
If the measured value is lower than a predetermined concentration, the phosphoric acid concentration in the water to be treated that is introduced into the biological activated carbon can be maintained at a predetermined concentration or higher by injecting a phosphoric acid solution before the biological activated carbon using a phosphoric acid solution injection device. . 7 In addition, in the present invention as set forth in claim 2, the phosphoric acid concentration in the water to be treated introduced into the biological activated carbon is measured with a phosphoric acid concentration analyzer, and if the measured value is lower than a predetermined concentration, the phosphoric acid concentration is By injecting ozone from an ozone injection device, the phosphoric acid concentration in the water to be treated that is introduced into the biological activated carbon can be maintained at a predetermined concentration or higher.
（実施例）
以下、本発明の実施例を第１図〜第３図を参照して説明
する。(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3.
第１図は本発明の第１実施例を示すもので、図中１は被
処理水中の懸濁物を凝集沈澱させる凝集沈澱槽、２は凝
集沈澱槽１で凝集沈澱した懸濁物を除去する砂ろ過積、
３は砂ろ過積２を通過した被処理水中に溶存する有機物
等の溶存物質をオゾンで分解・防臭するオゾン処理槽、
４はオゾン処理槽３で分解された被処理水中の溶存物質
を生物活性炭で除去する生物活性炭処理槽である。また
、５は上記オゾン処理槽３にオゾンを供給するオゾン発
生器、６はオゾン処理槽３から出た被処理水中の燐酸濃
度を測定する燐酸濃度分析計で、この燐酸濃度分析計６
から出力された信号は燐酸溶液注入装置７に入力される
。この燐酸溶液注入装置７は燐酸濃度分析計６で測定さ
れた被処理水中の燐酸濃度が所定濃度より低い場合に燐
酸溶液タンク８に貯えられた燐酸溶液を注入管９を介し
てオゾン処理槽３と生物活性炭処理槽４との間のオゾン
処理水配管１０に注入するものである。Fig. 1 shows the first embodiment of the present invention, in which 1 is a coagulation-sedimentation tank for coagulating and precipitating suspended matter in the water to be treated, and 2 is a coagulation-sedimentation tank 1 for removing the coagulated and precipitated suspended matter. sand filtration product,
3 is an ozone treatment tank that uses ozone to decompose and deodorize dissolved substances such as organic matter dissolved in the water to be treated that has passed through the sand filtration chamber 2;
4 is a biological activated carbon treatment tank that uses biological activated carbon to remove dissolved substances in the water to be treated that has been decomposed in the ozone treatment tank 3. Further, 5 is an ozone generator that supplies ozone to the ozone treatment tank 3, and 6 is a phosphoric acid concentration analyzer that measures the phosphoric acid concentration in the water to be treated discharged from the ozone treatment tank 3.
The signal output from the phosphoric acid solution injection device 7 is inputted to the phosphoric acid solution injection device 7. This phosphoric acid solution injection device 7 supplies the phosphoric acid solution stored in the phosphoric acid solution tank 8 to the ozone treatment tank 3 through the injection pipe 9 when the phosphoric acid concentration in the water to be treated measured by the phosphoric acid concentration analyzer 6 is lower than a predetermined concentration. The water is injected into the ozone-treated water piping 10 between the and biological activated carbon treatment tank 4.
このように構成される水処理装置で河川、湖沼、ダム等
の表流水を浄水処理する場合は、まず被処理水を凝集沈
澱槽１に導入し、被処理水中の懸濁物を凝集沈澱させる
。次に被処理水を砂ろ過積２に導入して凝集沈澱した懸
濁物を除去した後、被処理水をオゾン処理槽３に導入す
る。そして、被処理水中の溶存物質をオゾンで分解・防
具した後、被処理水を生物活性炭処理槽４に導入し、オ
ゾンによって分解された有機物やアンモニアイオン等を
生物活性炭で除去する。ここで、オゾン処理槽３から出
た被処理水は燐酸濃度分析計６により被処理水中の燐酸
濃度が定期的に測定され、その測定値は燐酸溶液注入装
置７に入力される。燐酸溶液注入装置７では燐酸濃度分
析計６で測定された燐酸濃度が所定濃度より低い場合に
は、燐酸溶液タンク８に貯えられた燐酸溶液を注入管９
を通じてオゾン処理水配管１０内に注入し、被処理水中
の燐酸濃度を上昇させる。なお、この動作は被処理水中
の燐酸濃度が所定濃度になるまで繰返し行なわれる。When treating surface water from rivers, lakes, dams, etc. with a water treatment device configured in this manner, the water to be treated is first introduced into the coagulation and sedimentation tank 1, and suspended matter in the water to be treated is coagulated and sedimented. . Next, the water to be treated is introduced into the sand filtration chamber 2 to remove coagulated and precipitated suspended matter, and then the water to be treated is introduced into the ozone treatment tank 3. After the dissolved substances in the water to be treated are decomposed and protected by ozone, the water to be treated is introduced into the biological activated carbon treatment tank 4, and the organic substances, ammonia ions, etc. decomposed by the ozone are removed by the biological activated carbon. Here, the phosphoric acid concentration in the water to be treated discharged from the ozone treatment tank 3 is periodically measured by a phosphoric acid concentration analyzer 6, and the measured value is inputted to the phosphoric acid solution injection device 7. In the phosphoric acid solution injection device 7, when the phosphoric acid concentration measured by the phosphoric acid concentration analyzer 6 is lower than a predetermined concentration, the phosphoric acid solution stored in the phosphoric acid solution tank 8 is transferred to the injection pipe 9.
The phosphoric acid concentration in the water to be treated is increased by injecting it into the ozonated water pipe 10 through the ozone-treated water pipe 10. Note that this operation is repeated until the phosphoric acid concentration in the water to be treated reaches a predetermined concentration.
このように本実施例では、生物活性炭に導入される被処
理水中の燐酸濃度を燐酸濃度分析計６で測定し、その測
定値が所定濃度より低い場合には燐酸溶液注入装置７に
より燐酸溶液を生物活性炭の前段に注入するようにした
ので、生物活性炭に導入される被処理水中の燐酸濃度を
所定濃度以上に保つことができる。したがって、河川、
湖沼、ダム等の表流水中に含まれる燐酸が春から夏にか
けて大幅に減少しても生物活性炭の除去性能が大きく変
動することがなく、常に安定した除去性能を得ることが
できる。As described above, in this embodiment, the phosphoric acid concentration in the water to be treated introduced into the biological activated carbon is measured by the phosphoric acid concentration analyzer 6, and if the measured value is lower than a predetermined concentration, the phosphoric acid solution is injected by the phosphoric acid solution injection device 7. Since the phosphoric acid is injected before the biological activated carbon, the phosphoric acid concentration in the treated water introduced into the biological activated carbon can be maintained at a predetermined concentration or higher. Therefore, rivers,
Even if phosphoric acid contained in surface waters of lakes, dams, etc. decreases significantly from spring to summer, the removal performance of biological activated carbon does not change greatly, and stable removal performance can always be obtained.
なお、第２図は本実施例による水処理効果をＤＯＣ（溶
存有機炭素）の除去率変化で示したちので、同図に示す
ように生物活性炭に導入される被処理水中の燐酸濃度を
燐酸濃度分析計６で測定し、その測定値が所定濃度より
低い場合には燐酸溶液注入装置７に燐酸溶液を生物活性
炭の前段に注入することにより、春から夏にかけて表流
水中に含まれる燐酸が減少してもＤＯＣの除去率を約３
０〜４０％に維持することができる。In addition, since Figure 2 shows the water treatment effect of this example in terms of the change in the removal rate of DOC (dissolved organic carbon), the phosphoric acid concentration in the water to be treated introduced into the biological activated carbon can be expressed as the phosphoric acid concentration. If the measured value is lower than a predetermined concentration using the analyzer 6, the phosphoric acid solution is injected into the phosphoric acid solution injection device 7 before the biological activated carbon, thereby reducing the phosphoric acid contained in surface water from spring to summer. However, the removal rate of DOC is about 3
It can be maintained between 0 and 40%.
第３図は本発明の第２実施例を示すもので、図中１は凝
集沈澱槽、２は砂ろ過器、３はオゾン処理槽、４は生物
活性炭処理槽、５はオゾン発生器、６は燐酸濃度分析計
で、これらは第１図に示したものと同様のものである。FIG. 3 shows a second embodiment of the present invention, in which 1 is a coagulation sedimentation tank, 2 is a sand filter, 3 is an ozone treatment tank, 4 is a biological activated carbon treatment tank, 5 is an ozone generator, 6 are phosphoric acid concentration analyzers, which are similar to those shown in FIG.
また、１１は凝集沈澱槽１の前段に設けられた前オゾン
処理槽、１２は前オゾン処理槽１１にオゾンを供給する
オゾン発生器である。このオゾン発生器１２は前記燐酸
濃度分析計６からの信号を受けて被処理水中の燐酸濃度
が所定濃度より低い場合にオゾンを前オゾン処理槽１１
に供給するものである。Further, 11 is a pre-ozone treatment tank provided upstream of the coagulation-sedimentation tank 1, and 12 is an ozone generator that supplies ozone to the pre-ozone treatment tank 11. This ozone generator 12 receives a signal from the phosphoric acid concentration analyzer 6 and supplies ozone to the pre-ozone treatment tank 11 when the phosphoric acid concentration in the water to be treated is lower than a predetermined concentration.
It is intended to supply
このような構成によると、生物活性炭に導入される被処
理水中の燐酸濃度が所定濃度より低い場合にはオゾン発
生器１２から前オゾン処理槽１１にオゾンが供給され、
被処理水中に含まれる懸濁物がオゾンによって酸化され
る。これにより被処理水中に溶存性の燐酸め（増加する
ので、被処理水中の燐酸濃度を所定濃度以」二に保つこ
とができ、常に安定した除去性能を得ることができる。According to such a configuration, when the phosphoric acid concentration in the water to be treated introduced into the biological activated carbon is lower than a predetermined concentration, ozone is supplied from the ozone generator 12 to the pre-ozonation tank 11,
Suspended substances contained in the water to be treated are oxidized by ozone. This increases the amount of phosphoric acid dissolved in the water to be treated, so the phosphoric acid concentration in the water to be treated can be maintained at a predetermined concentration or higher, and stable removal performance can always be obtained.
［発明の効果］
以上説明したように本発明によれば、生物活性炭に導入
される被処理水中の燐酸濃度を所定濃度以上に保つこと
ができるので、河川、湖沼、ダム等の表流水中に含まれ
る燐酸が春から夏にかけて大幅に減少しても生物活性炭
の除去性能が大きく変動することがなく、常に安定した
除去性能を得ることができる。[Effects of the Invention] As explained above, according to the present invention, the phosphoric acid concentration in the water to be treated introduced into the biological activated carbon can be maintained at a predetermined concentration or higher. Even if the phosphoric acid content decreases significantly from spring to summer, the removal performance of biological activated carbon does not change greatly, and stable removal performance can always be obtained.
第１図は本発明の第１実施例を示す水処理装置の概略図
、第２図は同実施例の作用効果を示す図、第３図は本発
明の第２実施例を示す水処理装置の概略図、第４図は生
物活性炭による溶存有機炭素の除去効率を示す図である
。
１・・・凝集沈澱槽、２・・・砂ろ過積、３・・・オゾ
ン処理槽、４・・・生物活性炭処理槽、５・・・オゾン
発生器、６・・・燐酸濃度分析計、７・・・燐酸溶液注
入装置、８・・・燐酸溶液タンク、１１・・・前オゾン
処理槽、１２・・・オゾン発生器。
出願人代理人 弁理士 鈴江武彦Fig. 1 is a schematic diagram of a water treatment device showing a first embodiment of the present invention, Fig. 2 is a diagram showing the effects of the same embodiment, and Fig. 3 is a water treatment device showing a second embodiment of the present invention. FIG. 4 is a diagram showing the removal efficiency of dissolved organic carbon by biological activated carbon. 1... Coagulation sedimentation tank, 2... Sand filtration tank, 3... Ozone treatment tank, 4... Biological activated carbon treatment tank, 5... Ozone generator, 6... Phosphoric acid concentration analyzer, 7... Phosphoric acid solution injection device, 8... Phosphoric acid solution tank, 11... Pre-ozone treatment tank, 12... Ozone generator. Applicant's agent Patent attorney Takehiko Suzue
Claims (2)
去した後、被処理水中に溶存している溶存物質をオゾン
で分解・除臭し、分解された溶存物質を生物活性炭で除
去する水処理装置において、前記生物活性炭に導入され
る被処理水中の燐酸濃度を測定する燐酸濃度分析計と、
この燐酸濃度分析計からの信号を受けて被処理水中の燐
酸濃度が所定濃度より低い場合に前記生物活性炭の前段
に燐酸溶液を注入する燐酸溶液注入装置を設けたことを
特徴とする水処理装置。(1) After coagulating and sedimenting the suspended matter in the water to be treated and removing it by sand filtration, the dissolved substances in the water to be treated are decomposed and deodorized with ozone, and the decomposed dissolved substances are treated with biological activated carbon. A phosphoric acid concentration analyzer that measures the phosphoric acid concentration in the water to be treated introduced into the biological activated carbon in the water treatment equipment for removal;
A water treatment device characterized by being provided with a phosphoric acid solution injection device that receives a signal from the phosphoric acid concentration analyzer and injects a phosphoric acid solution into the front stage of the biological activated carbon when the phosphoric acid concentration in the water to be treated is lower than a predetermined concentration. .
去した後、被処理水中に溶存している溶存物質をオゾン
で分解・除臭し、分解された溶存物質を生物活性炭で除
去する水処理装置において、前記生物活性炭に導入され
る被処理水中の燐酸濃度を測定する燐酸分析計と、この
燐酸分析計からの信号を受けて被処理水中の燐酸濃度が
所定濃度より低い場合に前記凝集沈澱工程の前段にオゾ
ンを注入するオゾン注入装置を設けたことを特徴とする
水処理装置。(2) After coagulating and sedimenting the suspended matter in the water to be treated and removing it by sand filtration, the dissolved substances in the water to be treated are decomposed and deodorized with ozone, and the decomposed dissolved substances are treated with biological activated carbon. In the water treatment equipment for removal, a phosphoric acid analyzer is provided to measure the phosphoric acid concentration in the water to be treated introduced into the biological activated carbon, and a signal from the phosphoric acid analyzer is received when the phosphoric acid concentration in the water to be treated is lower than a predetermined concentration. A water treatment device comprising: an ozone injection device for injecting ozone before the coagulation-sedimentation step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63300024A JPH02149397A (en) | 1988-11-28 | 1988-11-28 | Water treatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63300024A JPH02149397A (en) | 1988-11-28 | 1988-11-28 | Water treatment apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02149397A true JPH02149397A (en) | 1990-06-07 |
| JPH0581318B2 JPH0581318B2 (en) | 1993-11-12 |
Family
ID=17879791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63300024A Granted JPH02149397A (en) | 1988-11-28 | 1988-11-28 | Water treatment apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02149397A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200799A (en) * | 1990-11-30 | 1992-07-21 | Kubota Corp | Water treatment method and biological activated carbon-adsorbing type basin |
| JPH04298293A (en) * | 1991-03-26 | 1992-10-22 | Kubota Corp | Water treatment |
| JPH04298294A (en) * | 1991-03-26 | 1992-10-22 | Kubota Corp | Water treatment |
| JPH0720119A (en) * | 1993-07-06 | 1995-01-24 | Hitachi Ltd | Method and system for supporting management of water purification plant |
| CN104355460A (en) * | 2014-11-26 | 2015-02-18 | 哈尔滨工业大学 | Deep treatment method for Yellow River water in Wanjiazhai Reservoir |
| JP2018158315A (en) * | 2017-03-23 | 2018-10-11 | 高砂熱学工業株式会社 | Algae separation system and algae separation method |
-
1988
- 1988-11-28 JP JP63300024A patent/JPH02149397A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200799A (en) * | 1990-11-30 | 1992-07-21 | Kubota Corp | Water treatment method and biological activated carbon-adsorbing type basin |
| JPH04298293A (en) * | 1991-03-26 | 1992-10-22 | Kubota Corp | Water treatment |
| JPH04298294A (en) * | 1991-03-26 | 1992-10-22 | Kubota Corp | Water treatment |
| JPH0720119A (en) * | 1993-07-06 | 1995-01-24 | Hitachi Ltd | Method and system for supporting management of water purification plant |
| CN104355460A (en) * | 2014-11-26 | 2015-02-18 | 哈尔滨工业大学 | Deep treatment method for Yellow River water in Wanjiazhai Reservoir |
| JP2018158315A (en) * | 2017-03-23 | 2018-10-11 | 高砂熱学工業株式会社 | Algae separation system and algae separation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0581318B2 (en) | 1993-11-12 |
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