JPH0581318B2 - - Google Patents
Info
- Publication number
- JPH0581318B2 JPH0581318B2 JP63300024A JP30002488A JPH0581318B2 JP H0581318 B2 JPH0581318 B2 JP H0581318B2 JP 63300024 A JP63300024 A JP 63300024A JP 30002488 A JP30002488 A JP 30002488A JP H0581318 B2 JPH0581318 B2 JP H0581318B2
- Authority
- JP
- Japan
- Prior art keywords
- phosphoric acid
- water
- treated
- activated carbon
- acid 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.)
- Expired - Fee Related
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 159
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 93
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 71
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 40
- 239000000243 solution Substances 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 14
- 238000004062 sedimentation Methods 0.000 claims description 7
- 238000009287 sand filtration Methods 0.000 claims description 6
- 230000001112 coagulating effect Effects 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 235000011007 phosphoric acid Nutrition 0.000 description 66
- 239000002352 surface water Substances 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 5
- 238000005345 coagulation Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004576 sand Substances 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
- 230000003247 decreasing effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000002503 metabolic 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
- 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
- Water Treatment By Sorption (AREA)
- Biological Treatment Of Waste Water (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
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)
is 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（）は活性炭の吸着効果によるもの、
（）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、（）は被処理水中に
燐酸不足が生じ微生物活性炭機能が低下した状
態、（）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、（）の状態は春から
夏にかけてオルト燐酸の燐が5μg／以下になる
と現われやすい。 Figure 4 shows the water treatment effect of biological activated carbon with DOC.
(dissolved organic carbon) removal rate change,
() in the figure is due to the adsorption effect of activated carbon,
In parentheses, adsorption by activated carbon has reached saturation and is removed by microorganisms. In parentheses, there is a lack of phosphoric acid in the water to be treated and the microbial activated carbon function has decreased. In parentheses, the lack of phosphoric acid in the water to be treated has been resolved and the activated carbon function has decreased again. Each figure shows the state in which metabolic removal is being carried out by microorganisms, and the state in parentheses tends to appear when the phosphorus content of orthophosphoric acid is less than 5 μg/g 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
処理を行なつた場合、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
ことができなかつた。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。(Problems to be Solved by the Invention) As mentioned above, when biological activated carbon is used for water treatment in the past, the removal performance of biological activated carbon decreases from spring to summer, making it impossible to obtain stable removal performance. Nakatsuta. Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a water treatment device in which the removal performance of biological activated carbon does not vary greatly seasonally and can always obtain stable removal performance. The purpose is to
［発明の構成］
（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・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
とを特徴とするものである。[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention as claimed in claim 1 provides a method of coagulating and precipitating suspended matter in water to be treated and removing the suspended matter by sand filtration. In water treatment equipment that decomposes and deodorizes dissolved substances in treated water with ozone, and removes the decomposed dissolved substances with biological activated carbon,
a phosphoric acid concentration analyzer that measures the phosphoric acid concentration in the water to be treated that is introduced into the biological activated carbon; This device is characterized in that a phosphoric acid solution injection device for injecting a phosphoric acid solution is provided at the front stage.
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・
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ものである。 In addition, the present invention as set forth in claim 2 is such 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 precipitated with ozone.
A water treatment device that deodorizes and removes decomposed 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 signal that is received 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 phosphoric acid concentration in the water to be treated 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。(Function) In the present invention as set forth in claim 1, the phosphoric acid concentration in the water to be treated introduced into the biological activated carbon is measured using a phosphoric acid concentration analyzer, and if the measured value is lower than a predetermined concentration, the phosphoric acid concentration in the water to be treated is introduced into the biological activated carbon. By injecting the phosphoric acid solution from the phosphoric acid solution injection device, 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.
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。 In addition, in the present invention according to 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
を除去する砂ろ過槽、３は砂ろ過槽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・除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. 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 tank 2; 4 is a water to be treated that has been decomposed in the ozone treatment tank 3; This is a biological activated carbon treatment tank that removes dissolved substances using biological activated carbon. 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 that comes out of the ozone treatment tank 3.
The signal output from the phosphoric acid concentration analyzer 6 is input 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 ozone-treated water is injected into the ozone-treated water piping 10 between the and the 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
槽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・除臭
した後、被処理水を生物活性炭処理槽４に導入
し、オゾンによつ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 filter tank 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 deodorized with ozone, the water to be treated is introduced into the biological activated carbon treatment tank 4, and the organic matter, ammonia ions, etc. decomposed by the ozone are removed with 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 injected into the ozonated water pipe 10 through the injection pipe 9. , increasing the phosphoric acid concentration in the water to be treated. In addition,
This operation is repeated until the phosphoric acid concentration in the water to be treated reaches a predetermined concentration.
このような本実施例では、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。したがつて、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。 In this embodiment, the phosphoric acid concentration in the water to be treated that is 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, lakes,
Even if phosphoric acid contained in surface water from 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
COC（溶存有機炭素）の除去率変化で示したもの
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
30〜40％に維持することができる。 Furthermore, Figure 2 shows the water treatment effect of this example.
It is expressed as a change in the removal rate of COC (dissolved organic carbon).As shown in the figure, 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 6, and the measured value is determined as the predetermined concentration. If the level is lower, by injecting the phosphoric acid solution into the phosphoric acid solution injection device 7 before the biological activated carbon, the DOC removal rate can be reduced even if the phosphoric acid contained in surface water decreases from spring to summer.
Can be maintained at 30-40%.
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。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、１
２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。 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. In addition, 11 is a pre-ozone treatment tank provided at the front stage of the coagulation sedimentation tank 1;
2 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-ozonation tank 11 when the phosphoric acid concentration in the water to be treated is lower than a predetermined concentration.
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
物がオゾンによつて酸化される。これにより被処
理水中に溶存性の燐酸が増加するので、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、
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, the ozone generator 12
ozone is supplied to the water to be treated, and the suspended matter contained in the water to be treated is oxidized by the ozone. This increases dissolved phosphoric acid 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.
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……砂ろ過槽、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。
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 filter tank, 3... Ozone treatment tank, 4... Biological activated carbon treatment tank, 5... Ozone generator, 6... Phosphoric acid concentration analyzer, 7... Phosphoric acid solution injection Apparatus, 8... Phosphoric acid solution tank, 11...
Front ozone treatment tank, 12... ozone generator.
Claims (1)
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・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。 ２ 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・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。[Scope of Claims] 1. 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, and the dissolved substances are decomposed. In a water treatment device that uses biological activated carbon to remove phosphoric acid, there is a phosphoric acid concentration 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 concentration analyzer that measures the phosphoric acid concentration in the water to be treated by receiving a signal from the phosphoric acid concentration analyzer. 1. A water treatment device comprising a phosphoric acid solution injection device for injecting a phosphoric acid solution upstream of the biological activated carbon when the concentration of the activated carbon is lower than a predetermined concentration. 2 After coagulating and precipitating 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 removed with biological activated carbon. The water treatment apparatus includes a phosphoric acid analyzer that measures the phosphoric acid concentration in the water to be treated introduced into the biological activated carbon, and a phosphoric acid analyzer that measures the phosphoric acid concentration in the water to be treated when the phosphoric acid concentration in the water to be treated is lower than a predetermined concentration based on a signal from the phosphoric acid analyzer. A water treatment device characterized in that an ozone injection device for injecting ozone is provided before a 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 JPH02149397A (en) | 1990-06-07 |
| JPH0581318B2 true 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) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0763714B2 (en) * | 1990-11-30 | 1995-07-12 | 株式会社クボタ | Water treatment method and biological activated carbon adsorption tank |
| JP2682750B2 (en) * | 1991-03-26 | 1997-11-26 | 株式会社クボタ | Water treatment method |
| JP2682751B2 (en) * | 1991-03-26 | 1997-11-26 | 株式会社クボタ | Water treatment method |
| JP3274541B2 (en) * | 1993-07-06 | 2002-04-15 | 株式会社日立製作所 | Water purification plant management support method and support system |
| 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 |
| JP7002852B2 (en) * | 2017-03-23 | 2022-02-04 | 高砂熱学工業株式会社 | Algae separation system, algae separation method and algae production method |
-
1988
- 1988-11-28 JP JP63300024A patent/JPH02149397A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02149397A (en) | 1990-06-07 |
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