JPH04298293A - Water treatment - Google Patents
Water treatmentInfo
- Publication number
- JPH04298293A JPH04298293A JP3060628A JP6062891A JPH04298293A JP H04298293 A JPH04298293 A JP H04298293A JP 3060628 A JP3060628 A JP 3060628A JP 6062891 A JP6062891 A JP 6062891A JP H04298293 A JPH04298293 A JP H04298293A
- Authority
- JP
- Japan
- Prior art keywords
- water
- ammonia
- treated
- microorganisms
- phosphorus
- 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 51
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000001179 sorption measurement Methods 0.000 claims abstract description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 12
- 239000011574 phosphorus Substances 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 8
- 244000005700 microbiome Species 0.000 abstract description 18
- 241000894006 Bacteria Species 0.000 abstract description 2
- 229910002651 NO3 Inorganic materials 0.000 abstract description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 230000001902 propagating effect Effects 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 239000004576 sand Substances 0.000 description 8
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 7
- 230000015271 coagulation Effects 0.000 description 5
- 238000005345 coagulation Methods 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 2
- -1 ammonia ions Chemical class 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009629 microbiological culture Methods 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 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)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、生物活性炭を用いた上
水や下水等の水処理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating water such as tap water and sewage using biological activated carbon.
【０００２】0002
【従来の技術】近年、河川や湖沼などの水源の水質が悪
化しているので、浄水処理施設などにおいてはオゾン接
触槽や生物活性炭吸着池を設けて被処理水を高度処理し
ている。上述の高度処理を伴う水処理方法は、一般的に
凝集沈殿槽において被処理水に凝集剤を投入し、被処理
水中の懸濁物質を凝集沈殿させた後に砂濾過池において
除去しており、続いてオゾン接触槽において被処理水中
に溶存するアンモニアや有機物を分解するとともに、臭
気を取り除き、分解された有機物やアンモニアイオンを
生物活性炭吸着池において物理吸着や活性炭に付着した
微生物の生物反応により除去している。BACKGROUND OF THE INVENTION In recent years, the quality of water sources such as rivers and lakes has been deteriorating, so water treatment facilities are installing ozone contact tanks and biologically activated carbon adsorption ponds to perform advanced treatment of water. In the above-mentioned water treatment method that involves advanced treatment, a flocculant is generally added to the water to be treated in a coagulation sedimentation tank, and suspended matter in the water is coagulated and precipitated, and then removed in a sand filter basin. Next, ammonia and organic substances dissolved in the water to be treated are decomposed in an ozone contact tank, and odors are removed, and the decomposed organic substances and ammonia ions are removed in a biological activated carbon adsorption pond through physical adsorption and biological reactions of microorganisms attached to the activated carbon. are doing.
【０００３】0003
【発明が解決しようとする課題】しかし、上記した従来
の構成において、被処理水の水質が、季節による変動や
凝集沈殿によって変化し、生物活性炭吸着池における微
生物の増殖に必要なアンモニアやリンが不足する。一方
被処理水中のアンモニアは秋から冬にかけて増加する。
このため、夏から秋に十分な微生物の培養が行われず、
秋季において被処理水のアンモニアを除去するための微
生物が不足するために、処理水中のアンモニア濃度が高
くなる問題があった。[Problems to be Solved by the Invention] However, in the above-mentioned conventional configuration, the quality of the water to be treated changes due to seasonal fluctuations and coagulation, and the ammonia and phosphorus necessary for the growth of microorganisms in the biological activated carbon adsorption pond deteriorate. Run short. On the other hand, ammonia in treated water increases from autumn to winter. For this reason, sufficient microbial culture is not carried out from summer to autumn,
There is a problem in that the ammonia concentration in the treated water increases because there is a shortage of microorganisms to remove ammonia from the treated water in autumn.
【０００４】本発明は上記課題を解決するもので、被処
理水の溶存物質の変動に影響されることなく一年を通じ
て常に安定してアンモニアおよび有機物の除去を行うこ
とができる水処理方法を提供することを目的とする。The present invention solves the above problems and provides a water treatment method that can consistently remove ammonia and organic substances throughout the year without being affected by fluctuations in dissolved substances in the water to be treated. The purpose is to
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明の水処理方法は、被処理水中に溶存している
溶存物質を生物活性炭吸着池で除去する水処理方法にお
いて、夏季を過ぎて気温が低下し始める時期から被処理
水にリンおよびアンモニアを徐々に増加させながら添加
する構成としたものである。[Means for Solving the Problems] In order to solve the above problems, the water treatment method of the present invention is a water treatment method in which dissolved substances dissolved in water to be treated are removed in a biological activated carbon adsorption pond. The structure is such that phosphorus and ammonia are gradually increased and added to the water to be treated from the time when the temperature starts to drop.
【０００６】[0006]
【作用】上記構成により、秋から冬にかけて被処理水中
の溶存物質であるアンモニアが増加することに先駆けて
、夏季を過ぎて気温が低下し始める時期から被処理水に
リンおよびアンモニアを徐々に増加させながら添加する
ことにより生物活性炭吸着池における微生物の増殖を促
進し、夏から秋に十分な微生物の培養を行って処理水中
のアンモニア濃度が高くなる冬季に十分な微生物を確保
する。このことにより、被処理水の溶存物質の変動に影
響されることなく一年を通じて常に安定してアンモニア
および有機物の除去を行うことができる。[Operation] With the above configuration, phosphorus and ammonia are gradually added to the water to be treated from the time when the temperature starts to drop after the summer, in advance of the increase in ammonia, a dissolved substance in the water to be treated from autumn to winter. By adding it while the ammonia concentration is increasing, the growth of microorganisms in the biological activated carbon adsorption pond is promoted, and sufficient microorganisms are cultured from summer to autumn to ensure sufficient microorganisms in winter when the ammonia concentration in the treated water is high. This makes it possible to consistently remove ammonia and organic matter throughout the year without being affected by fluctuations in dissolved substances in the water to be treated.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図１において、被処理水１を凝集沈殿槽２に供
給し、被処理水１に含まれた懸濁物質を凝集沈殿し、そ
の後に砂濾過池３において懸濁物質を除去する。そして
、砂濾過池３を透過した被処理水１をオゾン接触槽４に
供給し、オゾンによって被処理水１に溶存する有機物な
どの溶存物質を分解し、かつ脱臭する。さらに、オゾン
接触槽４を通過した被処理水１を生物活性炭吸着池５に
供給し、被処理水１中の分解された溶存物質を生物活性
炭に付着した微生物の生物化学的反応によって除去する
。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, treated water 1 is supplied to a coagulation sedimentation tank 2, suspended solids contained in the treated water 1 are coagulated and precipitated, and then the suspended solids are removed in a sand filter basin 3. Then, the water to be treated 1 that has passed through the sand filter 3 is supplied to the ozone contact tank 4, and dissolved substances such as organic substances dissolved in the water to be treated 1 are decomposed and deodorized by ozone. Further, the water to be treated 1 that has passed through the ozone contact tank 4 is supplied to the biological activated carbon adsorption pond 5, and the decomposed dissolved substances in the water to be treated 1 are removed by the biochemical reaction of microorganisms attached to the biological activated carbon.
【０００８】そして、上記工程において、凝集沈殿槽２
の前か、もしくは後か、さらには両方の何れかにおいて
被処理水１にアンモニア６を添加する。また、砂濾過池
３の前もしくは後か、オゾン接触槽４の後か、さらには
両方の何れかにおいて被処理水１にリンもしはリン酸ま
たはリン酸塩７を添加する。このアンモニア６とリンも
しはリン酸またはリン酸塩７などの薬剤は、夏季を過ぎ
て気温が低下し始める時期から徐々に増加させながら添
加する。[0008] In the above step, the coagulation sedimentation tank 2
Ammonia 6 is added to the water to be treated 1 either before or after, or even both. Further, phosphorus, phosphoric acid, or phosphate 7 is added to the water to be treated 1 either before or after the sand filter 3, after the ozone contact tank 4, or even both. The chemicals such as ammonia 6 and phosphorus or phosphoric acid or phosphate 7 are added while gradually increasing from the time when the temperature begins to drop after summer.
【０００９】以下、上記構成における作用について説明
する。図２に示すように、秋から冬にかけて被処理水１
の溶存物質であるアンモニアが増加することに先駆けて
、夏季を過ぎて気温が低下し始める時期、秋ごろの被処
理水１の水温が１５〜２０℃以下になる前の時期から被
処理水１にリンもしくはリン酸またはリン酸塩７および
アンモニア６を徐々に増加させながら添加することによ
り、被処理水１のアンモニア濃度とリンもしくはリン酸
またはリン酸塩濃度を自然状態より少し高めに維持する
。[0009] The operation of the above configuration will be explained below. As shown in Figure 2, from autumn to winter, treated water 1
Prior to the increase in ammonia, which is a dissolved substance in water, the temperature begins to drop after the summer, and before the water temperature of treated water 1 drops below 15 to 20 degrees Celsius in autumn, By adding phosphorus or phosphoric acid or phosphate 7 and ammonia 6 gradually to .
【００１０】このことにより、生物活性炭吸着池５に生
育する硝酸菌などの微生物を増殖するに必要なアンモニ
ア濃度およびリンもしくはリン酸またはリン酸塩濃度を
確保し、生物活性炭吸着池５における微生物の増殖を促
進する。そして、夏から秋に十分な微生物の培養を行っ
て被処理水１のアンモニア濃度が高くなる冬季に十分な
微生物を確保する。このことにより、被処理水１の溶存
物質の変動に影響されることなく一年を通じて常に安定
してアンモニアおよび有機物の除去を行うことができる
。[0010] This ensures the ammonia concentration and phosphorus or phosphoric acid or phosphate concentration necessary for the growth of microorganisms such as nitrate bacteria growing in the biological activated carbon adsorption pond 5, and the concentration of microorganisms in the biological activated carbon adsorption pond 5 is ensured. Promote proliferation. Then, sufficient microorganisms are cultured from summer to autumn to ensure sufficient microorganisms during winter when the ammonia concentration in the water to be treated 1 is high. As a result, ammonia and organic matter can be constantly and stably removed throughout the year without being affected by fluctuations in dissolved substances in the water to be treated 1.
【００１１】さらに、砂濾過池３における砂粒にもアン
モニアおよび有機物の除去に寄与する微生物を培養する
ことができ、砂濾過池３においてアンモニアおよび有機
物の除去を行うことにより、生物活性炭吸着池５に対す
る負荷を軽減することができる。Furthermore, microorganisms that contribute to the removal of ammonia and organic matter can be cultured in the sand grains in the sand filter basin 3, and by removing ammonia and organic matter in the sand filter basin 3, the biological activated carbon adsorption basin 5 is The load can be reduced.
【００１２】0012
【発明の効果】以上述べたように、夏季を過ぎて気温が
低下し始める時期から被処理水にリンおよびアンモニア
を徐々に増加させながら添加することにより、夏から秋
に十分な微生物の培養を行って冬季に十分な微生物を確
保することができ、被処理水の溶存物質の変動に影響さ
れることなく一年を通じて常に安定してアンモニアおよ
び有機物の除去を行うことができる。[Effects of the Invention] As described above, by gradually increasing the amount of phosphorus and ammonia added to the water to be treated from the time when the temperature begins to drop after summer, sufficient microorganisms can be cultured from summer to autumn. In this way, sufficient microorganisms can be secured during the winter, and ammonia and organic matter can be removed stably throughout the year without being affected by fluctuations in dissolved substances in the water to be treated.
【図１】本発明の一実施例を示す水処理工程のブロック
図である。FIG. 1 is a block diagram of a water treatment process showing one embodiment of the present invention.
【図２】同実施例における被処理水の水温と溶存するア
ンモニア濃度の関係を示すグラフである。FIG. 2 is a graph showing the relationship between the temperature of the water to be treated and the concentration of dissolved ammonia in the same example.
１ 被処理水 ２ 凝集沈殿槽 ３ 砂濾過池 ４ オゾン接触槽 ５ 生物活性炭吸着池 ６ アンモニア 1 Water to be treated 2 Coagulation sedimentation tank 3 Sand filter pond 4 Ozone contact tank 5 Biological activated carbon adsorption pond 6 Ammonia
Claims (1)
生物活性炭吸着池で除去する水処理方法において、夏季
を過ぎて気温が低下し始める時期から被処理水にリンお
よびアンモニアを徐々に増加させながら添加することを
特徴とする水処理方法。Claim 1: In a water treatment method that removes dissolved substances in water to be treated using a biological activated carbon adsorption pond, phosphorus and ammonia are gradually added to the water to be treated from the time when the temperature begins to drop after the summer season. A water treatment method characterized by adding water while adding water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3060628A JP2682750B2 (en) | 1991-03-26 | 1991-03-26 | Water treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3060628A JP2682750B2 (en) | 1991-03-26 | 1991-03-26 | Water treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04298293A true JPH04298293A (en) | 1992-10-22 |
| JP2682750B2 JP2682750B2 (en) | 1997-11-26 |
Family
ID=13147759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3060628A Expired - Fee Related JP2682750B2 (en) | 1991-03-26 | 1991-03-26 | Water treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2682750B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897920A (en) * | 2012-03-22 | 2013-01-30 | 中国环境科学研究院 | Application of nano-grade material in low-temperature water body ecological reparation, and low-temperature water body ecological composite nano-grade reparation method |
| CN105293844A (en) * | 2015-12-14 | 2016-02-03 | 连云港市自来水有限责任公司 | Reactor for uninterruptedly getting direct drinking water and method for getting direct drinking water |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02149397A (en) * | 1988-11-28 | 1990-06-07 | Toshiba Corp | Water treatment apparatus |
-
1991
- 1991-03-26 JP JP3060628A patent/JP2682750B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02149397A (en) * | 1988-11-28 | 1990-06-07 | Toshiba Corp | Water treatment apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897920A (en) * | 2012-03-22 | 2013-01-30 | 中国环境科学研究院 | Application of nano-grade material in low-temperature water body ecological reparation, and low-temperature water body ecological composite nano-grade reparation method |
| CN102897920B (en) * | 2012-03-22 | 2016-03-30 | 中国环境科学研究院 | The application of nano material in the restoration of the ecosystem of low temperature water body and low temperature water ecology composite Nano restorative procedure |
| CN105293844A (en) * | 2015-12-14 | 2016-02-03 | 连云港市自来水有限责任公司 | Reactor for uninterruptedly getting direct drinking water and method for getting direct drinking water |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2682750B2 (en) | 1997-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |