JPH04200799A - Water treatment method and biological activated carbon-adsorbing type basin - Google Patents
Water treatment method and biological activated carbon-adsorbing type basinInfo
- Publication number
- JPH04200799A JPH04200799A JP2340777A JP34077790A JPH04200799A JP H04200799 A JPH04200799 A JP H04200799A JP 2340777 A JP2340777 A JP 2340777A JP 34077790 A JP34077790 A JP 34077790A JP H04200799 A JPH04200799 A JP H04200799A
- Authority
- JP
- Japan
- Prior art keywords
- water
- activated carbon
- treated
- ammonia
- biological activated
- 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 84
- 238000000034 method Methods 0.000 title claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 100
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 65
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 33
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 17
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 13
- 239000010452 phosphate Substances 0.000 claims abstract description 13
- 238000004062 sedimentation Methods 0.000 claims abstract description 13
- 238000001179 sorption measurement Methods 0.000 claims description 22
- 238000009287 sand filtration Methods 0.000 claims description 12
- 230000015271 coagulation Effects 0.000 claims description 11
- 238000005345 coagulation Methods 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims 2
- 238000004332 deodorization Methods 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 13
- 241000894006 Bacteria Species 0.000 abstract description 5
- 230000001932 seasonal effect Effects 0.000 abstract description 5
- 230000001580 bacterial effect Effects 0.000 abstract 3
- 238000001914 filtration Methods 0.000 abstract 2
- 230000001546 nitrifying effect Effects 0.000 abstract 2
- 238000005189 flocculation Methods 0.000 abstract 1
- 230000016615 flocculation Effects 0.000 abstract 1
- 244000005700 microbiome Species 0.000 description 17
- 239000005416 organic matter Substances 0.000 description 12
- 235000021317 phosphate Nutrition 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000001721 carbon Chemical class 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- -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
- 238000007599 discharging Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000009629 microbiological culture Methods 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005406 washing Methods 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
- Filtration Of Liquid (AREA)
- Biological Treatment Of Waste Water (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Description
【発明の詳細な説明】
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
法および生物活性炭吸着池に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for treating water such as clean water and sewage using biological activated carbon, and to a biological activated carbon adsorption pond.
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、−船釣に凝集沈殿槽にお
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
池において活性炭に付着した硝酸菌などの微生物の生物
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 the water to be treated. The above-mentioned water treatment method involving advanced treatment is as follows: - A flocculant is added to the water to be treated in a coagulation sedimentation tank during boat fishing, and suspended solids in the water are coagulated and precipitated, and then removed in a sand filter pond. ,
Next, in an ozone contact tank, ammonia and organic matter dissolved in the water to be treated are decomposed, and odors are removed.
Decomposed organic matter and ammonia ions are removed by biological reactions of microorganisms such as nitrate bacteria attached to activated carbon in a biological activated carbon adsorption pond.
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。Problems to be Solved by the Invention However, in the conventional configuration described above, the quality of the water to be treated changes due to seasonal fluctuations and coagulation and sedimentation, resulting in a lack of ammonia and phosphorus necessary for the growth of microorganisms in the biological activated carbon adsorption pond. . On the other hand, ammonia in treated water increases from autumn to winter.
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。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.
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
処理方法および生物活性炭吸着池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 and biological activated carbon adsorption pond that can consistently remove ammonia and organic matter stably throughout the year without being affected by fluctuations in dissolved substances in the water to be treated. The purpose is to provide
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
理水中の懸濁物質を凝集沈殿、もしくは凝集沈殿と砂濾
過とによって除去し、その後被処理水中に溶存している
溶存物質をオゾンで分解および脱臭し、分解された溶存
物質を生物活性炭で除去する水処理方法において、凝集
沈殿の前後のすくなくとも一箇所において被処理水にア
ンモニアを添加し、砂濾過の前とオゾン処理の後のすく
なくとも一箇所において被処理水にリン酸もしくはリン
酸塩を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 removes suspended solids in the water to be treated by coagulation sedimentation, or coagulation sedimentation and sand filtration, and then removes suspended solids from the water to be treated. In a water treatment method that decomposes and deodorizes dissolved substances with ozone and removes the decomposed dissolved substances with biological activated carbon, ammonia is added to the water to be treated at least at one point before and after coagulation and sedimentation, and sand filtration is performed. The structure is such that phosphoric acid or phosphate is added to the water to be treated at least at one point before and after the ozone treatment.
また、砂濾過の前に前段のオゾン処理を行うとともに、
前段のオゾン処理の前と砂濾過の前とオゾン処理の後の
すくなくとも一箇所において被処理水にリン酸もしくは
リン酸塩を添加する構成としたものである。In addition, we perform a preliminary ozone treatment before sand filtration, and
The structure is such that phosphoric acid or phosphate is added to the water to be treated at least once before the ozone treatment in the first stage, before the sand filtration, and after the ozone treatment.
そして、本発明の生物活性炭吸着池は、中程に活性炭層
を有し、活性炭層の上部にトラフが設けられ、活性炭層
の下方に逆洗水管と空気吐出設備を設けた構成としたも
のである。The biological activated carbon adsorption pond of the present invention has an activated carbon layer in the middle, a trough is provided above the activated carbon layer, and a backwash water pipe and air discharge equipment are provided below the activated carbon layer. be.
作用
上記した構成により、生物活性炭による処理に供される
被処理水には適当量のアンモニアとリン酸もしくはリン
酸塩が一年を通じて常に溶存することとなり、被処理水
の水質の季節変動に対して影響されることなく生物活性
炭に微生物を培養し、アンモニアおよびを接物の除去に
必要な十分な微生物の増殖が図られる。Effect: Due to the above-mentioned structure, an appropriate amount of ammonia and phosphoric acid or phosphate salts are always dissolved in the water to be treated with biological activated carbon throughout the year, and it is effective against seasonal fluctuations in the water quality of the water to be treated. Microorganisms can be cultured on biological activated carbon without being affected by the water, and sufficient microorganisms can grow to remove ammonia and contact materials.
また、砂濾過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
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、生物活性炭に対する負荷を軽減することができる。In addition, microorganisms that contribute to the removal of ammonia and organic matter can be cultured in the sand grains in sand filtration, and by removing ammonia and organic matter in sand filtration, the load on biological activated carbon can be reduced.
そして、本発明の生物活性炭吸着池によれば、生物活性
炭吸着池における水位を活性炭層の上面、 付近まで水
抜きし、その後逆洗水管から無塩素水または塩素水を洗
浄水として供給するとともに、空気を空気吐出設備から
供給し、水位がトラフの下方付近に達した時点で、空気
の供給を停止し、逆洗水のみで洗浄を続け、逆洗物をト
ラフにオーバーフローさせて外部に排出する。このこと
により、生物活性炭に付着する微生物の最適量が達成さ
れる。According to the biological activated carbon adsorption pond of the present invention, the water level in the biological activated carbon adsorption pond is drained to the upper surface of the activated carbon layer, and then chlorine-free water or chlorinated water is supplied as washing water from the backwash water pipe, and Air is supplied from the air discharge equipment, and when the water level reaches near the bottom of the trough, the air supply is stopped, cleaning is continued using only backwash water, and the backwash material is overflowed into the trough and discharged to the outside. . This achieves an optimum amount of microorganisms adhering to the bioactivated carbon.
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。第１
図において、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。EXAMPLE An example of the present invention will be described below based on the drawings. 1st
In the figure, treated water 1 is supplied to a coagulation sedimentation tank 2, suspended solids contained in the treated water 1 are coagulated and sedimented, and then the suspended solids are removed in a sand filter basin 3. The water to be treated 1 that has passed through the sand filter 3 is then supplied to the ozone contact tank 4, and dissolved substances such as organic matter dissolved in the water to be treated 1 are decomposed and deodorized by ozone. Furthermore, 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.
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にリン酸もしくはリン酸塩７を添加する。In the above step, ammonia 6 is added to the water to be treated 1 either before or after the coagulation-sedimentation tank 2, or even both. Further, phosphoric acid or phosphate 7 is added to the water to be treated 1 either before the sand filter 3, after the ozone contact tank 4, or both.
ここで、生物活性炭吸着池５について説明する。Here, the biological activated carbon adsorption pond 5 will be explained.
生物活性炭吸着池５は第２図に示すように構成されてお
り、中程に活性炭層１１が形成されるとともに、活性炭
層１１の上方には集水トラフ１２が設けられている。ま
た、活性炭層１１の下部には下部集水装置１３が設けら
れている。さらに、活性炭層ｌｌの上方において、被処
理水１の供給管１４が開口しており、活性炭層１１の下
方には逆洗水管Ｉ５とブロア１６に連通ずる空気吐出設
備１７と処理水取出管１８が連通している。The biological activated carbon adsorption pond 5 is constructed as shown in FIG. 2, in which an activated carbon layer 11 is formed in the middle, and a water collection trough 12 is provided above the activated carbon layer 11. Further, a lower water collection device 13 is provided below the activated carbon layer 11. Further, above the activated carbon layer 11, a supply pipe 14 for the water to be treated 1 is open, and below the activated carbon layer 11, an air discharge equipment 17 and a treated water take-out pipe 18 are connected to a backwash water pipe I5 and a blower 16. are communicating.
以下、上記構成における作用について説明する。Hereinafter, the effects of the above configuration will be explained.
凝集沈殿槽２の前後においてアンモニア６を被処理水１
に添加することにより、生物活性炭吸着池５において培
養する硝酸菌などの微生物を培養するに必要なアンモニ
ア濃度が確保される。また、砂濾過池３の前か、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にリン酸もしくはリン酸塩７を添加することにより
、生物活性炭吸着池５において培養する硝酸菌などの微
生物を培養するに必要なリン酸もしくはリン酸塩濃度が
確保される。したがって、生物活性炭吸着池５に供され
る被処理水１には適当量のアンモニアとリン酸もしくは
リン酸塩が一年を通じて常に溶存することとなり、被処
理水の水質の季節変動に対して影響されることなく生物
活性炭に微生物を培養し、アンモニアおよび有機物の除
去に必要な十分な微生物の増殖が図られる。Ammonia 6 is added to the treated water 1 before and after the coagulation sedimentation tank 2.
By adding the ammonia to the bioactivated carbon adsorption pond 5, the ammonia concentration necessary for culturing microorganisms such as nitrate bacteria is ensured. In addition, by adding phosphoric acid or phosphate 7 to the treated water 1 either before the sand filtration pond 3, after the ozone contact tank 4, or even both, culture in the biological activated carbon adsorption pond 5 can be carried out. The phosphoric acid or phosphate concentration necessary for culturing microorganisms such as nitrate bacteria is ensured. Therefore, an appropriate amount of ammonia and phosphoric acid or phosphate salts are always dissolved in the treated water 1 supplied to the biological activated carbon adsorption pond 5 throughout the year, which affects seasonal fluctuations in the water quality of the treated water. Microorganisms are cultured on biological activated carbon without being contaminated, and sufficient microbial growth necessary for removing ammonia and organic matter is achieved.
また、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。In addition, microorganisms that contribute to the removal of ammonia and organic matter can be cultured in the sand grains in the sand filter pond 3, and by removing ammonia and organic matter in the sand filter pond 3, the load on the biological activated carbon adsorption pond 5 is reduced. can do.
尚、秋ごろに被処理水１の水温が１５〜２０℃以下にな
る前がリン酸もしくはリン酸塩７およびアンモニア６を
添加するに適している。Note that it is suitable to add phosphoric acid or phosphate 7 and ammonia 6 before the temperature of the water to be treated 1 becomes 15 to 20° C. or lower around autumn.
また、第３図に示すように、砂濾過池３の前にオゾン接
触槽２１を設けて被処理水１の処理を行っても良く、こ
の場合にはリン酸もしくはリン酸塩７をオゾン接触槽２
１の前において被処理水１に投入しても良く、また先の
実施例のように投入しても良い。Further, as shown in FIG. 3, an ozone contact tank 21 may be provided in front of the sand filter 3 to treat the water 1 to be treated. In this case, phosphoric acid or phosphates 7 may be brought into contact with ozone. Tank 2
1 may be added to the water to be treated 1, or may be added as in the previous embodiment.
また、第４図に示すように、砂濾過池３を生物活性炭吸
着池５の後に設けても良い。Furthermore, as shown in FIG. 4, a sand filter pond 3 may be provided after the biological activated carbon adsorption pond 5.
そして、生物活性炭吸着池５の洗浄を行うときには、生
物活性炭吸着池５における水位を活性炭層１１の上面付
近まで水抜きし、その後逆洗水管Ｉ５から無塩素水又は
塩素水を洗浄水として供給するとともに、ブロア１６に
よって空気を空気吐出設備１７から供給する。そして、
水位がトラフ１２の下方２０センチ位に達した時点で、
空気の供給を停止し、逆洗水のみで洗浄を続け、逆洗物
をトラフＩ２を通して外部に排出する。When cleaning the biological activated carbon adsorption pond 5, the water level in the biological activated carbon adsorption pond 5 is drained to near the top surface of the activated carbon layer 11, and then chlorine-free water or chlorinated water is supplied as cleaning water from the backwash water pipe I5. At the same time, air is supplied from the air discharge equipment 17 by the blower 16. and,
When the water level reaches about 20 cm below trough 12,
The supply of air is stopped, cleaning is continued using only backwash water, and the backwash material is discharged to the outside through trough I2.
このことにより、生物活性炭に付着する微生物最適量の
確保と良好な活性炭洗浄ができる。This makes it possible to ensure an optimal amount of microorganisms adhering to the biological activated carbon and to perform good activated carbon cleaning.
発明の効果
以上述べたように本発明によれば、生物活性炭による処
理に供される被処理水には適当量のアンモニアとリン酸
もしくはリン酸塩が一年を通じて又は秋から冬にかけて
常に溶存することとなり、被処理水の水質の季節変動に
対して影響されることなく生物活性炭に微生物を培養し
、アンモニアおよび有機物の除去に必要な十分な微生物
の増殖を図ることができ、砂濾過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、生物活性炭に対する負荷を軽減
することができる。Effects of the Invention As described above, according to the present invention, appropriate amounts of ammonia and phosphoric acid or phosphates are always dissolved in the water to be treated with biological activated carbon throughout the year or from autumn to winter. As a result, microorganisms can be cultured on biological activated carbon without being affected by seasonal fluctuations in the quality of water to be treated, and sufficient microorganisms necessary for removing ammonia and organic matter can be grown. Microorganisms that contribute to the removal of ammonia and organic matter can also be cultured, and by removing ammonia and organic matter through sand filtration, the load on biological activated carbon can be reduced.
そして、本発明の生物活性炭吸着池によれば、逆洗物を
トラフにオーバーフローさせて外部に排出することによ
り、生物活性炭に付着する微生物の流出を抑制すること
ができる。According to the biological activated carbon adsorption pond of the present invention, by overflowing the backwashed material into the trough and discharging it to the outside, it is possible to suppress the outflow of microorganisms adhering to the biological activated carbon.
第１図は本発明の一実施例を示す水処理工程のブロック
図、第２図は同実施例における生物活性炭吸着池の断面
図、第３図は本発明の他の実施例における水処理工程の
ブロック図、第４図は本発明の他の実施例における水処
理工程のブロック図である。
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、７・・・リン酸もしくはリン
酸塩。Fig. 1 is a block diagram of a water treatment process showing one embodiment of the present invention, Fig. 2 is a sectional view of a biological activated carbon adsorption pond in the same embodiment, and Fig. 3 is a water treatment process in another embodiment of the present invention. FIG. 4 is a block diagram of a water treatment process in another embodiment of the present invention. 1... Water to be treated, 2... Coagulation sedimentation tank, 3... Sand filter basin, 4... Ozone contact tank, 5... Biological activated carbon adsorption pond, 6... Ammonia, 7... - Phosphoric acid or phosphate.
Claims (1)
殿と砂濾過とによって除去し、その後被処理水中に溶存
している溶存物質をオゾンで分解および脱臭し、分解さ
れた溶存物質を生物活性炭で除去する水処理方法におい
て、凝集沈殿の前後のすくなくとも一箇所において被処
理水にアンモニアを添加し、砂濾過の前とオゾン処理の
後のすくなくとも一箇所において被処理水にリン酸もし
くはリン酸塩を添加することを特徴とする水処理方法。 ２、砂濾過の前に前段のオゾン処理を行うとともに、前
段のオゾン処理の前と砂濾過の前とオゾン処理の後のす
くなくとも一箇所において被処理水にリン酸もしくはリ
ン酸塩を添加することを特徴とする請求項１記載の水処
理方法。 ３、中程に活性炭層を有し、活性炭層の上部にトラフが
設けられ、活性炭層の下方に逆洗水管と空気吐出設備が
設けられたことを特徴とする生物活性炭吸着池。[Claims] 1. Removal of suspended solids in the water to be treated by coagulation and sedimentation, or coagulation and sedimentation and sand filtration, and then decomposition and deodorization of the dissolved substances in the water to be treated with ozone, and decomposition. In a water treatment method that uses biological activated carbon to remove dissolved substances, ammonia is added to the treated water at least one point before and after coagulation and precipitation, and ammonia is added to the treated water at least one point before and after sand filtration and after ozone treatment. A water treatment method characterized by adding phosphoric acid or phosphate to. 2. Before sand filtration, perform ozone treatment in the first stage, and add phosphoric acid or phosphate to the water to be treated at least in one place before the first stage ozone treatment, before sand filtration, and after ozone treatment. The water treatment method according to claim 1, characterized in that: 3. A biological activated carbon adsorption pond having an activated carbon layer in the middle, a trough provided above the activated carbon layer, and a backwash water pipe and air discharge equipment provided below the activated carbon layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2340777A JPH0763714B2 (en) | 1990-11-30 | 1990-11-30 | Water treatment method and biological activated carbon adsorption tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2340777A JPH0763714B2 (en) | 1990-11-30 | 1990-11-30 | Water treatment method and biological activated carbon adsorption tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04200799A true JPH04200799A (en) | 1992-07-21 |
| JPH0763714B2 JPH0763714B2 (en) | 1995-07-12 |
Family
ID=18340202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2340777A Expired - Fee Related JPH0763714B2 (en) | 1990-11-30 | 1990-11-30 | Water treatment method and biological activated carbon adsorption tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0763714B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100367219B1 (en) * | 1999-02-09 | 2003-01-14 | 엘지건설 주식회사 | An equipment of advanced drinking water treatment for the control of micro-pollutants |
| KR100414580B1 (en) * | 2001-04-10 | 2004-01-07 | 주식회사 아이이아이 | A purification system for a waste water of livestock |
| JP2006142283A (en) * | 2004-10-19 | 2006-06-08 | Hokuei Kensetsu Kk | Water purification system |
| KR101035021B1 (en) * | 2011-01-12 | 2011-05-19 | 주식회사 디알티 | The method to clear polluted water |
| CN103951128A (en) * | 2014-05-06 | 2014-07-30 | 浙江南太湖淡水水产种业有限公司 | Ultrafiltration purification method for industrialized seedling production water of macrobrachium rosenbergii |
| CN106423110A (en) * | 2016-10-07 | 2017-02-22 | 河南工业大学 | Preparation of magnetic adsorbent efficiently removing polycyclic aromatic hydrocarbon with xanthoceras sorbifolia bunge shell being raw material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105894A (en) * | 1982-12-08 | 1984-06-19 | Maezawa Kogyo Kk | Purification of water containing organic substance and apparatus therefor |
| JPH02149397A (en) * | 1988-11-28 | 1990-06-07 | Toshiba Corp | Water treatment apparatus |
-
1990
- 1990-11-30 JP JP2340777A patent/JPH0763714B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105894A (en) * | 1982-12-08 | 1984-06-19 | Maezawa Kogyo Kk | Purification of water containing organic substance and apparatus therefor |
| JPH02149397A (en) * | 1988-11-28 | 1990-06-07 | Toshiba Corp | Water treatment apparatus |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100367219B1 (en) * | 1999-02-09 | 2003-01-14 | 엘지건설 주식회사 | An equipment of advanced drinking water treatment for the control of micro-pollutants |
| KR100414580B1 (en) * | 2001-04-10 | 2004-01-07 | 주식회사 아이이아이 | A purification system for a waste water of livestock |
| JP2006142283A (en) * | 2004-10-19 | 2006-06-08 | Hokuei Kensetsu Kk | Water purification system |
| KR101035021B1 (en) * | 2011-01-12 | 2011-05-19 | 주식회사 디알티 | The method to clear polluted water |
| CN103951128A (en) * | 2014-05-06 | 2014-07-30 | 浙江南太湖淡水水产种业有限公司 | Ultrafiltration purification method for industrialized seedling production water of macrobrachium rosenbergii |
| CN103951128B (en) * | 2014-05-06 | 2015-09-09 | 浙江南太湖淡水水产种业有限公司 | A kind of Macrobrachium rosenbergii industrial seedling rearing water quality super-filtration purifying method |
| CN106423110A (en) * | 2016-10-07 | 2017-02-22 | 河南工业大学 | Preparation of magnetic adsorbent efficiently removing polycyclic aromatic hydrocarbon with xanthoceras sorbifolia bunge shell being raw material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0763714B2 (en) | 1995-07-12 |
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