JPH04298294A - Water treatment - Google Patents
Water treatmentInfo
- Publication number
- JPH04298294A JPH04298294A JP3060629A JP6062991A JPH04298294A JP H04298294 A JPH04298294 A JP H04298294A JP 3060629 A JP3060629 A JP 3060629A JP 6062991 A JP6062991 A JP 6062991A JP H04298294 A JPH04298294 A JP H04298294A
- Authority
- JP
- Japan
- Prior art keywords
- carbon adsorption
- water
- ammonia
- microorganisms
- treated
- 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 54
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 68
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000001179 sorption measurement Methods 0.000 claims abstract description 35
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 31
- 244000005700 microbiome Species 0.000 claims abstract description 30
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 11
- 239000011574 phosphorus Substances 0.000 claims abstract description 11
- 238000012258 culturing Methods 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 abstract 6
- 239000000463 material Substances 0.000 abstract 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 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
- 150000003013 phosphoric acid derivatives Chemical class 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
- 239000002351 wastewater 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)
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
存物質を複数の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に、一
つの生物活性炭吸着池に流入する被処理水に適当量のリ
ンおよびアンモニアを添加して当該生物活性炭吸着池に
生育する微生物の増殖を促進し、冬季の高濃度にアンモ
ニアが溶存する被処理水に対応可能な十分の微生物を培
養し、同様にして順次他の生物活性炭吸着池における微
生物を培養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 using a plurality of biological activated carbon adsorption ponds. When the temperature starts to drop after 100 days, an appropriate amount of phosphorus and ammonia is added to the treated water flowing into one biological activated carbon adsorption pond to promote the growth of microorganisms growing in the biological activated carbon adsorption pond. The structure is such that enough microorganisms can be cultured to handle water to be treated in which ammonia is dissolved in a high concentration, and microorganisms in other biological activated carbon adsorption ponds can be similarly cultured one after another.
【０００６】[0006]
【作用】上記構成において、自然状態の微生物は被処理
水中に溶存するアンモニア濃度に応じて生育するが、被
処理水に適当量のリンおよびアンモニアを添加して被処
理水中の濃度を高めると、その濃度に応じて微生物が増
殖する。[Operation] In the above structure, microorganisms in a natural state grow according to the concentration of ammonia dissolved in the water to be treated, but if an appropriate amount of phosphorus and ammonia are added to the water to be treated to increase the concentration in the water to be treated, Microorganisms multiply depending on the concentration.
【０００７】したがって、リンおよびアンモニアの濃度
を高めた被処理水が流入する生物活性炭吸着池において
微生物を促成培養しながら、他の生物活性炭吸着池にお
いて通常の処理を行ない、各生物活性炭吸着池における
微生物の生息密度を順次に高めることにより、冬季にお
ける被処理水中のアンモニア濃度の高まりに先駆けて十
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。Therefore, while microorganisms are being cultured in a biological activated carbon adsorption pond into which treated water with increased concentrations of phosphorus and ammonia flows, normal treatment is carried out in other biological activated carbon adsorption ponds. By gradually increasing the population density of microorganisms, it is possible to secure sufficient microorganisms in advance of the increase in ammonia concentration in the water to be treated in winter, and it is possible to maintain the population for one year without being affected by fluctuations in dissolved substances in the water to be treated. Through this process, ammonia and organic matter can be removed in a stable manner.
【０００８】[0008]
【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を複数の生物活性炭吸着
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. Furthermore, the treated water 1 that has passed through the ozone contact tank 4 is supplied to a plurality of biological activated carbon adsorption ponds 5, and the decomposed dissolved substances in the treated water 1 are removed by biochemical reactions of microorganisms attached to the biological activated carbon. do.
【０００９】そして、生物活性炭吸着池５は夏場を過ぎ
て需要量が緩和されるとその能力的に余裕が生じるので
、この余裕を利用して生物活性炭吸着池５における微生
物の培養を行う。すなわち、夏季を過ぎて気温が低下し
始める時期に、一つの生物活性炭吸着池５に流入する被
処理水１にのみ適当量のアンモニア６およびリンもしは
リン酸またはリン酸塩７を添加して当該生物活性炭吸着
池５に生育する微生物の増殖を促進し、冬季の高濃度に
アンモニアが溶存する被処理水１に対応可能な十分の微
生物を培養する。この間に当該生物活性炭吸着池５から
排出される捨水８は排水池に排水され、他の生物活性炭
吸着池５においては処理水９が排出される。同様にして
順次他の生物活性炭吸着池５における微生物を培養する
。[0009]The biological activated carbon adsorption pond 5 has a surplus in its capacity when the demand eases after summer, and this surplus is utilized to culture microorganisms in the biological activated carbon adsorption pond 5. That is, when the temperature starts to drop after the summer, appropriate amounts of ammonia 6 and phosphorus or phosphoric acid or phosphates 7 are added only to the treated water 1 flowing into one biological activated carbon adsorption pond 5. The growth of microorganisms growing in the biological activated carbon adsorption pond 5 is promoted, and sufficient microorganisms are cultured to be able to handle the water to be treated 1 in which ammonia is dissolved at a high concentration in winter. During this time, the waste water 8 discharged from the biological activated carbon adsorption pond 5 is drained to a drainage pond, and the treated water 9 is discharged from the other biological activated carbon adsorption ponds 5. Microorganisms in other biological activated carbon adsorption ponds 5 are sequentially cultured in the same manner.
【００１０】以下、上記構成における作用を説明する。
自然状態の微生物は被処理水１に溶存するアンモニア濃
度に応じて生育するが、被処理水１に適当量のアンモニ
ア６およびリンもしくはリン酸またはリン酸塩７を添加
して濃度を高めると、その濃度に応じて微生物が増殖す
る。[0010] The operation of the above configuration will be explained below. Microorganisms in a natural state grow depending on the concentration of ammonia dissolved in the water to be treated 1, but if an appropriate amount of ammonia 6 and phosphorus or phosphoric acid or phosphate 7 are added to the water to be treated 1 to increase the concentration, Microorganisms multiply depending on the concentration.
【００１１】したがって、アンモニア６およびリンもし
くはリン酸またはリン酸塩７の濃度を高めた被処理水１
が流入する生物活性炭吸着池５において微生物を促成培
養しながら、他の生物活性炭吸着池５において通常の処
理を行ない、各生物活性炭吸着池５における微生物の生
息密度を順次に高めることにより、冬季における被処理
水１のアンモニア濃度の高まりに先駆けて、全ての生物
活性炭吸着池５に十分な微生物を確保することができ、
被処理水１の溶存物質の変動に影響されずに、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Therefore, treated water 1 with increased concentration of ammonia 6 and phosphorus or phosphoric acid or phosphate 7
While cultivating microorganisms in the biological activated carbon adsorption pond 5 into which the water flows, normal treatment is carried out in other biological activated carbon adsorption ponds 5, and by sequentially increasing the population density of microorganisms in each biological activated carbon adsorption pond 5, It is possible to secure sufficient microorganisms in all the biological activated carbon adsorption ponds 5 before the ammonia concentration in the treated water 1 increases,
Ammonia and organic matter can be removed consistently throughout the year without being affected by fluctuations in dissolved substances in treated water 1.
【００１２】0012
【発明の効果】以上述べたように本発明によれば、リン
およびアンモニアの濃度を高めた被処理水が流入する生
物活性炭吸着池において微生物を促成培養し、各生物活
性炭吸着池における微生物の生息密度を順次に高めるこ
とにより、冬季における被処理水中のアンモニア濃度の
高まりに先駆けて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, according to the present invention, microorganisms are cultured in biological activated carbon adsorption ponds into which treated water with increased concentrations of phosphorus and ammonia flows, and the microorganisms inhabit each biological activated carbon adsorption pond. By gradually increasing the density, it is possible to secure sufficient microorganisms in advance of the increase in ammonia concentration in the water to be treated in winter.
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.
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)
複数の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に、一つの生物
活性炭吸着池に流入する被処理水に適当量のリンおよび
アンモニアを添加して当該生物活性炭吸着池に生育する
微生物の増殖を促進し、冬季の高濃度にアンモニアが溶
存する被処理水に対応可能な十分の微生物を培養し、同
様にして順次他の生物活性炭吸着池における微生物を培
養することを特徴とする水処理方法。Claim 1: In a water treatment method in which dissolved substances dissolved in the water to be treated are removed using a plurality of biologically activated carbon adsorption ponds, when the temperature begins to drop after the summer season, water flowing into one biologically activated carbon adsorption pond Appropriate amounts of phosphorus and ammonia are added to the treated water to promote the growth of microorganisms growing in the biological activated carbon adsorption pond. A water treatment method characterized by culturing microorganisms in other biological activated carbon adsorption ponds in the same manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3060629A JP2682751B2 (en) | 1991-03-26 | 1991-03-26 | Water treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3060629A JP2682751B2 (en) | 1991-03-26 | 1991-03-26 | Water treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04298294A true JPH04298294A (en) | 1992-10-22 |
| JP2682751B2 JP2682751B2 (en) | 1997-11-26 |
Family
ID=13147788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3060629A Expired - Fee Related JP2682751B2 (en) | 1991-03-26 | 1991-03-26 | Water treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2682751B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006212484A (en) * | 2005-02-01 | 2006-08-17 | Kurita Water Ind Ltd | Pure water production method and apparatus |
| JP2017104818A (en) * | 2015-12-11 | 2017-06-15 | 水ｉｎｇ株式会社 | Operation control method of water treatment installation |
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 JP3060629A patent/JP2682751B2/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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006212484A (en) * | 2005-02-01 | 2006-08-17 | Kurita Water Ind Ltd | Pure water production method and apparatus |
| JP2017104818A (en) * | 2015-12-11 | 2017-06-15 | 水ｉｎｇ株式会社 | Operation control method of water treatment installation |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2682751B2 (en) | 1997-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |