JPH0295498A - Method and apparatus for treating water - Google Patents

Method and apparatus for treating water

Info

Publication number
JPH0295498A
JPH0295498A JP63244283A JP24428388A JPH0295498A JP H0295498 A JPH0295498 A JP H0295498A JP 63244283 A JP63244283 A JP 63244283A JP 24428388 A JP24428388 A JP 24428388A JP H0295498 A JPH0295498 A JP H0295498A
Authority
JP
Japan
Prior art keywords
treatment
water
algae
microorganisms
eutrophication
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.)
Pending
Application number
JP63244283A
Other languages
Japanese (ja)
Inventor
Shintaro Furuhashi
古橋 伸太郎
Takayuki Mimuro
御室 孝之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikko Engineering Co Ltd
Original Assignee
Nikko Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nikko Engineering Co Ltd filed Critical Nikko Engineering Co Ltd
Priority to JP63244283A priority Critical patent/JPH0295498A/en
Publication of JPH0295498A publication Critical patent/JPH0295498A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Landscapes

  • Biological Treatment Of Waste Water (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE:To prevent degradation of water quality in a process for treating water to cope with eutrophication of closed water area, by performing each process described hereunder successively, namely algae removing process, treatment with anaerobic microorganisms, treatment with aerobic microorganisms, and removal of P by a chemical process. CONSTITUTION:Water is lifted with a pump 1 from a closed water area such as lakes and marshes and introduced into a first treating apparatus 3. On the surface of the first treating apparatus 3, a packing material 3a such as crushed stone coated with anaerobic microorganisms propagated thereon is arranged, where decomposition of the algae, and denitrification of the water are performed with a process almost similarly as a stage for filtration and capturing of algae. The treated water is then transported to a second treating apparatus 7, where org. matters are decomposed biologically by a contact material 7a coated with propagated aerobic microorganisms on the surface. In this stage, org. matters, N and P are absorbed as a part of the fungus body, thus N and P are removed to some extent. Remaining P is led to a precipitation tank 9 together with propagated fungus body, etc., and settled to a bottom of the precipitation tank 9 by the addition of an inorganic coagulant. On one hand, treated water from the precipitation tank 9 is returned to the original closed water area.

Description

【発明の詳細な説明】[Detailed description of the invention] 【産業上の利用分野】[Industrial application field]

本発明は、閉鎖性水域における富栄養化に伴なって発生
ずるあおこ笠のような藻類のn雷発生による諸問題(例
えば水質の悪化、腐敗による悪臭の発生、魚類生息状件
の悪化等)を解決する為の水処理方法及びその装置に関
するものである。
The present invention addresses various problems caused by the occurrence of algal blooms such as algal blooms that occur with eutrophication in closed water bodies (e.g., deterioration of water quality, generation of bad odors due to decay, deterioration of fish habitat conditions, etc.). The present invention relates to a water treatment method and an apparatus for solving the problem.

【発明の背景】[Background of the invention]

琵琶側、霞ケ浦、印幡沼等の湖沼、公園等にある池、城
周辺の濠、ボートレース場、水の出入の少ない養殖場等
の閉鎖性水域において、これに流入する汚水の栄養分(
B OD源、窒素、燐分笠)が蓄積する傾向のある場所
では、その濃度があるレベル以上に達すると藻類の異常
繁殖が起き、これによって例えば水質の悪化、腐敗によ
る悪臭の発生、魚類生息状件の悪化等の諸問題が起きて
いること周知の通りである。 尚、藻類は、主としてあおこ、あおみどろ等のらん藻類
、緑藻類であるが、はていあおい等の高等植物である場
合もある。 これらの藻類は季節的に繁殖と死滅とを繰り返し、死滅
して腐泥化し、そして腐敗分解してM積した養分を排出
し、この排出でさらに高められた養分により溢々その繁
殖度が高められる。 特に、燐を除<BOD源については藻類の炭酸同化1Y
用によって流入BOD源の池にも造られ、又、微生物の
働きにより空気中の窒素が固定N′vtされ、この微生
物の死滅腐敗により閉鎖性水域(環境)に蓄積される。 燐については、水域以外より流入する汚水あるいは投餌
等によりもたらされる以外には自然発生的には増えるこ
とはないものの、−度蓄禎された燐分は、生物体に取り
込まれた後も生物体より排出されたり、死滅腐敗により
放出される。 そして、水域に燐が持ち込まれると、微生物の同1ヒf
1E用及び固定作用により菌体が合成され、藻類の繁殖
がより一層起きる。 このことは、ビーカー内でも人工的に確認することが出
来る。 すなわち、ビーカー内に ■水道水のみを入れたもの、 ■窒素分のみを入れた水道水、 ■燐分のみを入れた水道水、 ■窒素分及び燐分の両方を入れた水)4水を用意し、こ
れらを日光にあてておくと、■及び■にばあおこは発生
しないが、■及び■にはあおこが発生ずる。
Nutrients from sewage flowing into closed bodies of water such as lakes and marshes such as the Biwa side, Kasumigaura, and Inbatanuma, ponds in parks, moats around castles, boat race tracks, and fish farms with little water access.
In areas where OD sources, nitrogen, and phosphorous (OD sources, nitrogen, and phosphorous caps) tend to accumulate, when their concentrations exceed a certain level, abnormal blooms of algae occur, resulting in, for example, deterioration of water quality, production of bad odors due to decay, and loss of fish habitat. It is well known that various problems such as deterioration of conditions are occurring. The algae are mainly cyanobacteria such as blue-green algae and blue-green algae, and green algae, but may also be higher plants such as blue-green algae. These algae repeatedly reproduce and die seasonally, die and become sapropel, and then decompose and decompose, releasing M-accumulated nutrients. It will be done. In particular, carbon dioxide assimilation by algae 1Y for BOD sources excluding phosphorus
Depending on the purpose, nitrogen is also created in ponds as inflow BOD sources, and nitrogen in the air is fixed N'vt by the action of microorganisms, and accumulated in closed bodies of water (environment) as the microorganisms die and putrefy. Regarding phosphorus, it does not increase naturally other than by sewage flowing in from other areas or by feeding, but the accumulated phosphorus does not increase naturally even after it is taken up by living organisms. It is excreted from the body or released as it dies and decomposes. When phosphorus is brought into a body of water, the same number of microorganisms
Bacterial cells are synthesized by the 1E use and fixation action, and algae proliferation occurs even more. This can also be confirmed artificially in a beaker. In other words, in a beaker, there are 4 types of water: ■Tap water only, ■Tap water containing only nitrogen, ■Tap water containing only phosphorus, and ■Water containing both nitrogen and phosphorus. If you prepare them and expose them to sunlight, blue mold will not appear on ■ and ■, but blue mold will appear on ■ and ■.

【発明の開示】[Disclosure of the invention]

従って、富栄養化が起きている閉鎖性水域において(大
は湖沼から、小は公園の池に至るまで)、水質の維持管
理、特にあJ3こ等の藻類の発生を効果的に防止り−る
/)には、婿の除去・管理をすることがポイントになる
。 そして、すでに富栄養の状態にあり、あお二等の発生を
みている湖沼等の開鎖性水域における水質改善のりには
、あおこ等の藻類やその池の濁質の除去ならびにBOD
源、窒素の除去が併Uて必用となり、これらと燐の除去
を上手に組み合せた総合的な手段が必用となる。 本発明は上記のような観点からなされたものであって、
閉鎖性水域の富栄養化に対処する水処理方法であって、
富栄養化に伴なって発生ずる藻類を除去する工程と、嫌
気性微生物による処理を施す工程と、前記藻類の除去工
程及び嫌気性微生物による処理工程の後好気性微生物に
よる処理を施す工程と、この好気性微生物による処理工
程の後化学的処理により残存する燐分を除去する工程と
を有することを特徴とする水処理方法を提供するもので
ある。 尚、上記の水処理方法において、藻類を除去する工程と
嫌気性微生物による処理を施す工程とは嫌気性微生物が
表面に繁殖した充填材の間を通過させることにより行な
われるようにすれば効率的であり、又、嫌気性及び/又
は好気性微生物が土中より補給され、処理活性が保たれ
るようにしておけば効率的である。 そして、ここて特に大事なことは、藻類の除去工程及び
嫌気性微生物による処理工程の後、好気性微生物による
処理を施すことであり、この工程が本発明の如く行なわ
れない場合には、例えば好気性微生物による処理の後嫌
気性微生物による処理を施したのでは、閉鎖性水域の水
処理が効果的に行なわれない。 又、好気性微生物による処理工程の後、化学的処理(例
えば凝集剤の添加)により残存する燐分を除去すること
も大事であり、この工程が本発明の如く行なわれない場
合には、閉鎖性水域の水処理が効果的に行なわれない。 又、本発明は、閉鎖性水域の富栄養化に対処する水処理
装置であって、富栄養化に伴なって発生する藻類を除去
する処理装置と、嫌気性微生物による処理を施す処理装
置と、好気性微生物による処理を施す処理装置と、化学
的処理により残存する燐分を除去する処理装置とを備え
たことを特徴とする水処理装置を提供するものでもある
。 尚、上記の水処理装置において、富栄養化に伴なって発
生する藻類を除去する処理装置には、藻類を含む濁水を
P通ずる濾過装置を有するようにしておくと好都合であ
る。 そして、この水処理装置は、すてにあおこ笠の藻類が発
生している湖沼、濠、池、ボー1へレース場あるいは養
殖池等のような閉鎖性水域に対して設置されるものであ
って、処理対象水はあおこ等の藻類あるいは未分解の有
機物を濾過・捕捉する為の手段、及び嫌気性微生物によ
り分解し、脱窒を行なう手段からなる第1の処理装置に
通ず。 尚、この第1の処理装置にて脱窒を行なっているが、嫌
気的脱窒を行うに必要な有機炭化水素が不足する場合に
は、必要な量の有機炭化水素(例えばメタノール笠)を
添加する。 又、第1の処理装置に供給する前段階において、必要に
応じて無機又は有機系の凝集剤を菌体の捕捉の為に添加
する。 次に、上記第1の処理装置で嫌気的分解されて出来た成
分及び取り残された窒素や燐分等を第2の処理装置(好
気性微生物による処理を施す処理袋r!1)に送り込み
、好気性微生物によりこれを処理する。 そして、好気的処理により第2の処理装置において菌体
が増殖し、これによって窒素や燐分笠が菌体の一部とし
て取り込まれ、窒素や燐分等はある程度除去されるが、
この第2の処理装置による処理水には燐を除去すること
も目的として加える′a集剤(アルミニウム系、鉄系凝
集剤)が添加され、これによって凝集沈降し、除去され
る。 このように処理された水はもとの濠、池等の閉鎖性水域
に戻されるが、養殖場等の場合には、必用に応じて適宜
な栄養剤、薬剤、餌等を加える。 第1図を用いてこれをさらに詳しく説明する。 1は閉鎖性水域2中より揚水するZ)のポンプ、3は第
1の処I!I!装置であって、この第1の処理装置i7
3にはあおこ等の藻類あるいは未分解の有機物を濾過・
捕捉する為の手段として砕石やプラスデック製の充填材
3aが配設されており、そしてこれらの砕石やプラスチ
ック製の充填材3aによる藻類等の濾過・捕捉工程とほ
ぼ同じ工程において、嫌気性微生物によりあおこ等の藻
類の分解・脱窒を行なう為に、前記砕石やプラスチック
製の充填材38表面には嫌気性微生物が繁殖させられて
いる。 4は、あおこ等の濁質を前以て除去する必要が生じた場
合、閉鎖性水域の水を濾過・濃縮する為の単層又は複層
濾過兼嫌気性処理装置であり、この?濾過兼嫌気性処理
装置で処理された処理水が第1の処理装置3に送られる
。 尚、濾過兼嫌気性処理装置4で濾過・濃縮されたあおこ
笠の濁質は、必要に応じて定期的な逆洗によって第1の
処理装置3に送られ、嫌気性微生物により処理する。 為のポンプである。 又、第1の処理袋に31には網が置がれ、この網上に土
壌が被覆されていて、土壌中の活性菌がたえず補給され
る構造となっている。 第1の処理装置3で処理された水は配管6を経て第2の
処理装置(好気的接触曝気槽、砕石やプラスチック製の
充填材といった接触材7aが配設されており、そしてこ
の接触材78表面には好気性微生物が繁殖させられてい
る好気的接触曝気槽)7へ導かれ、接触材7a表面に繁
殖した好気性微生物により有機物は生物1ヒ学的に分解
される。 この際、有機物すなわちBOD源、窒素及び燐分が菌体
の一部として取り込まれ、これによって窒素や燐はある
程度除去される。 尚、第2の処理装置7上には網が置がれ、この網上に土
壌が被覆されていて、土壌中の活性菌がたえず補給され
る構造となっている。 第2の処理装置7において増殖した菌体笠は配管8を経
て沈澱4ff 9に導かれる。この際、無機系化第2鉄
等)のタンク10内の無機凝集剤がポンプ11により添
加される。 そして、菌体と凝集剤のフロックは沈澱槽9下部に沈降
した後掲み上げられ、脱水等の処理をした後に処分する
。 沈澱槽9より出た処理済みの水は元の閉鎖性水域2にも
どされるが、開鎖性水域2に必要な水質条件に合わせて
各種の薬剤又は餌料等を加える。 12はその為の薬剤前46であり、13は添加用のポン
プである。 14は第1の処理装置3により処理を行なう為に必要な
薬剤(炭化水素)を添加するための薬剤貯槽であり、1
5はその為のポンプである。 16はブロワ−で、このブロワ−16は第2の処理装置
7に空気を送り込むものである。 又、沢過兼嫌気性処理装置4への通水の場合には、凝集
剤(無機又は存fi)を添加することもある。
Therefore, in closed water bodies where eutrophication occurs (from lakes and ponds to small ponds in parks), it is important to maintain and manage water quality, especially to effectively prevent the growth of algae. The key point is to remove and manage the son-in-law. In order to improve water quality in open water bodies such as lakes and marshes that are already in a eutrophic state and are experiencing the occurrence of blue-green algae, removal of algae such as blue-green algae and turbidity in the ponds, and BOD
It is necessary to remove nitrogen as well as nitrogen, and a comprehensive means that skillfully combines these and the removal of phosphorus is required. The present invention has been made from the above viewpoint, and
A water treatment method for combating eutrophication of closed water bodies, the method comprising:
a step of removing algae generated due to eutrophication, a step of applying treatment with anaerobic microorganisms, a step of performing treatment with aerobic microorganisms after the algae removal step and treatment step with anaerobic microorganisms, The present invention provides a water treatment method characterized by having a step of removing residual phosphorus by chemical treatment after the treatment step with aerobic microorganisms. In addition, in the above water treatment method, it is more efficient if the step of removing algae and the step of applying treatment with anaerobic microorganisms are carried out by passing the anaerobic microorganisms through the filling material that has grown on the surface. Moreover, it is efficient if anaerobic and/or aerobic microorganisms are replenished from the soil and the treatment activity is maintained. What is particularly important here is to perform treatment with aerobic microorganisms after the algae removal step and the treatment step with anaerobic microorganisms.If this step is not carried out as in the present invention, for example, Water treatment in closed water areas cannot be effectively carried out if treatment is performed using anaerobic microorganisms after treatment using aerobic microorganisms. It is also important to remove residual phosphorus by chemical treatment (for example, adding a flocculant) after the treatment step with aerobic microorganisms, and if this step is not carried out as in the present invention, the closure Water treatment of water bodies is not carried out effectively. The present invention also provides a water treatment device for dealing with eutrophication of closed water bodies, which includes a treatment device that removes algae that occurs due to eutrophication, and a treatment device that performs treatment using anaerobic microorganisms. The present invention also provides a water treatment device characterized by comprising a treatment device that performs treatment using aerobic microorganisms and a treatment device that removes residual phosphorus through chemical treatment. In addition, in the above-mentioned water treatment apparatus, it is convenient if the treatment apparatus for removing algae generated due to eutrophication is provided with a filtration apparatus for passing the turbid water containing algae through P. This water treatment equipment is installed in closed water bodies such as lakes, moats, ponds, racetracks, or aquaculture ponds where algae is occurring. The water to be treated passes through a first treatment device comprising means for filtering and capturing algae such as blue-green algae or undecomposed organic matter, and means for decomposing and denitrifying with anaerobic microorganisms. Although denitrification is performed in this first treatment device, if the organic hydrocarbons necessary for anaerobic denitrification are insufficient, the necessary amount of organic hydrocarbons (e.g., methanol cap) may be added. Added. In addition, in the step before supplying to the first processing device, an inorganic or organic flocculant is added as necessary to capture bacterial cells. Next, the components resulting from anaerobic decomposition in the first processing device and the remaining nitrogen, phosphorus, etc. are sent to the second processing device (processing bag r!1 for processing with aerobic microorganisms), This is treated with aerobic microorganisms. Then, the bacterial cells proliferate in the second treatment device through aerobic treatment, and nitrogen and phosphorus are taken in as part of the bacterial cells, and nitrogen and phosphorus are removed to some extent.
A collection agent (aluminum-based, iron-based flocculant) added for the purpose of removing phosphorus is added to the treated water by this second treatment device, which causes flocculation and sedimentation to be removed. The water treated in this way is returned to its original closed water area such as a moat or pond, but in the case of aquaculture farms, appropriate nutrients, drugs, feed, etc. are added as necessary. This will be explained in more detail using FIG. 1 is the pump of Z) that pumps water from the closed water area 2, and 3 is the first pump I! I! a device, the first processing device i7
3. Filters and removes algae such as blue-green algae or undecomposed organic matter.
A packing material 3a made of crushed stone or plastic deck is provided as a means for capturing, and anaerobic microorganisms are In order to decompose and denitrify algae such as blue-green algae, anaerobic microorganisms are grown on the surface of the crushed stone or plastic filler 38. 4 is a single-layer or multi-layer filtration and anaerobic treatment device for filtering and concentrating water in closed water bodies when it becomes necessary to remove suspended matter such as blue-green algae in advance. The treated water treated by the filtration and anaerobic treatment device is sent to the first treatment device 3. Incidentally, the suspended solids of Aokogasa filtered and concentrated in the filtration and anaerobic treatment device 4 are sent to the first treatment device 3 by periodic backwashing as necessary, and treated with anaerobic microorganisms. This is a pump for Further, a net is placed at 31 in the first treatment bag, and the soil is covered on the net, so that the active bacteria in the soil are continuously replenished. The water treated in the first treatment device 3 passes through piping 6 to the second treatment device (aerobic contact aeration tank, contact material 7a such as crushed stone or plastic filler is provided, and this contact The organic matter is led to an aerobic contact aeration tank (7) in which aerobic microorganisms are grown on the surface of the contact material 78, and the organic matter is biologically decomposed by the aerobic microorganisms that have grown on the surface of the contact material 7a. At this time, organic matter, that is, a BOD source, nitrogen and phosphorus are taken in as part of the bacterial cells, and as a result, nitrogen and phosphorus are removed to some extent. A net is placed on the second treatment device 7, and the soil is covered with the net, so that the active bacteria in the soil are continuously replenished. The bacterial cells grown in the second processing device 7 are led to the sediment 4ff 9 via a pipe 8. At this time, an inorganic flocculant (such as inorganic ferric iron) in the tank 10 is added by the pump 11. The bacterial cells and flocculant flocs are lifted up after settling to the lower part of the settling tank 9, and are disposed of after being subjected to treatments such as dehydration. The treated water discharged from the sedimentation tank 9 is returned to the original closed water area 2, but various chemicals or feeds are added to the open water area 2 according to the water quality conditions required. Reference numeral 12 is a drug preparator 46 for this purpose, and reference numeral 13 is a pump for addition. 14 is a chemical storage tank for adding chemicals (hydrocarbons) necessary for processing by the first processing device 3;
5 is a pump for that purpose. 16 is a blower, and this blower 16 sends air to the second processing device 7. Furthermore, when water is passed through the filtration and anaerobic treatment device 4, a flocculant (inorganic or organic) may be added.

【実施例】 以下において本発明の具体的実施例を示すが、本発明は
何等これに限定されるものではない。 実施例−1 第1図に示す水処理装置において、第1の処理装置3と
してプラスチック製の充填材3a表面に嫌気性微生物を
繁殖させた4001の嫌気性処理分解槽を用い、又、第
2の処理装置7としてプラスチック性の接触材7a表面
に好気性微生物を繁殖させたaooeの好気的接触曝気
槽を用い、ポンプ1で揚水し、沈澱槽9より管理池に処
理した水を戻した場合、その処理結果は次の通りである
。 尚、この場合濃縮装置4は用いていない。 又、薬剤槽14にはメタノールを用意し、水中に4 m
g/lになるようポンプ15により注入した9又、タン
ク10には硫酸バンドを用意し、6戸“実施例−2 第1図に示ず水処理装置において、;濾過濃縮兼嫌気性
処理槽4にてあおこ等をfA縮したのち、定期的(1日
1回)に逆洗を行ない、濃縮物を第1の処理装置3によ
り処理を行なった後、実施例1と同様に行ったので、そ
の処理結果を次に示す97・・第2の処理装置、7a・
・・接触材、9・・・沈澱槽、10・・・タンク、12
.14・・薬剤貯槽、16・フロワー特許出願人 日鉱
エンジニアリング株式会社代  理  人  宇   
  高       克     己
[Examples] Specific examples of the present invention will be shown below, but the present invention is not limited thereto in any way. Example 1 In the water treatment apparatus shown in FIG. An aerobic contact aeration tank with aerobic microorganisms grown on the surface of the plastic contact material 7a was used as the treatment device 7, water was pumped up with the pump 1, and the treated water was returned to the management pond from the settling tank 9. In this case, the processing results are as follows. Note that the concentrator 4 is not used in this case. In addition, methanol is prepared in the chemical tank 14, and the water is 4 m deep.
A sulfuric acid band was prepared in the tank 10, and a sulfuric acid band was injected using the pump 15 so that the concentration was 9 g/l. After fA shrinking the blue-green algae etc. in step 4, backwashing was carried out periodically (once a day), and the concentrate was processed in the first processing device 3, followed by the same procedure as in Example 1. Therefore, the processing results are shown below 97...second processing device, 7a...
... Contact material, 9 ... Sedimentation tank, 10 ... Tank, 12
.. 14. Drug storage tank, 16. Floor Patent applicant: Nikko Engineering Co., Ltd.
Katsumi Taka

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、本発明に係る水処理装置の1実施例の概略図
である。 1.5.11,13.15・・・ポンプ、2・・・閉鎖
性水域、3・・・第1の処理装置、3a・・充填材、4
・・・濾過濃縮兼嫌気性処理槽、6.8・・・配管。
FIG. 1 is a schematic diagram of one embodiment of a water treatment apparatus according to the present invention. 1.5.11, 13.15...Pump, 2...Closed water area, 3...First treatment device, 3a...Filling material, 4
...filtration concentration and anaerobic treatment tank, 6.8...piping.

Claims (5)

【特許請求の範囲】[Claims] (1)閉鎖性水域の富栄養化に対処する水処理方法であ
って、富栄養化に伴なって発生する藻類を除去する工程
と、嫌気性微生物による処理を施す工程と、前記藻類の
除去工程及び嫌気性微生物による処理工程の後好気性微
生物による処理を施す工程と、この好気性微生物による
処理工程の後化学的処理により残存する燐分を除去する
工程とを有することを特徴とする水処理方法。
(1) A water treatment method for dealing with eutrophication of closed water bodies, which includes a step of removing algae that occurs due to eutrophication, a step of applying treatment with anaerobic microorganisms, and a step of removing the algae. and a step of treating with an aerobic microorganism after the treatment step with an anaerobic microorganism, and a step of removing residual phosphorus by chemical treatment after the treatment step with the aerobic microorganism. Processing method.
(2)特許請求の範囲第1項記載の水処理方法において
、藻類を除去する工程と嫌気性微生物による処理を施す
工程とが、嫌気性微生物が表面に繁殖した充填材の間を
通過させることにより行なわれるもの。
(2) In the water treatment method described in claim 1, the step of removing algae and the step of applying treatment with anaerobic microorganisms include passing between fillers on which anaerobic microorganisms have grown. What is done by
(3)特許請求の範囲第1項記載の水処理方法において
、嫌気性及び/又は好気性微生物が土中より補給され、
処理活性が保たれるもの。
(3) In the water treatment method according to claim 1, anaerobic and/or aerobic microorganisms are replenished from the soil,
Something that maintains processing activity.
(4)閉鎖性水域の富栄養化に対処する水処理装置であ
って、富栄養化に伴なって発生する藻類を除去する処理
装置と、嫌気性微生物による処理を施す処理装置と、好
気性微生物による処理を施す処理装置と、化学的処理に
より残存する燐分を除去する処理装置とを備えたことを
特徴とする水処理装置。
(4) Water treatment equipment for dealing with eutrophication of closed water bodies, which includes a treatment equipment that removes algae that occurs due to eutrophication, a treatment equipment that performs treatment using anaerobic microorganisms, and an aerobic treatment equipment that handles eutrophication of closed water bodies. A water treatment device comprising a treatment device that performs treatment using microorganisms and a treatment device that removes residual phosphorus through chemical treatment.
(5)特許請求の範囲第4項記載の水処理装置において
、富栄養化に伴なって発生する藻類を除去する除去装置
には、藻類を含む濁水をろ過するろ過装置を有するもの
(5) In the water treatment device according to claim 4, the removal device for removing algae generated due to eutrophication includes a filtration device for filtering turbid water containing algae.
JP63244283A 1988-09-30 1988-09-30 Method and apparatus for treating water Pending JPH0295498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63244283A JPH0295498A (en) 1988-09-30 1988-09-30 Method and apparatus for treating water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63244283A JPH0295498A (en) 1988-09-30 1988-09-30 Method and apparatus for treating water

Publications (1)

Publication Number Publication Date
JPH0295498A true JPH0295498A (en) 1990-04-06

Family

ID=17116441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63244283A Pending JPH0295498A (en) 1988-09-30 1988-09-30 Method and apparatus for treating water

Country Status (1)

Country Link
JP (1) JPH0295498A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667688A (en) * 1991-12-23 1997-09-16 T. Kruger Systems As Process for the purification of polluted water
US5896167A (en) * 1994-10-21 1999-04-20 Toyota Jidosha Kabushiki Kaisha Apparatus for photographing moving body
KR20010016337A (en) * 2000-12-04 2001-03-05 이석진 Wastewater purification treatment system
JP2002370097A (en) * 2001-06-13 2002-12-24 Nippon Steel Chem Co Ltd Nitrate nitrogen treatment apparatus and treatment method using the same
JP2008000745A (en) * 2006-05-25 2008-01-10 Kato Construction Co Ltd Method for purifying water
JP2016107169A (en) * 2014-12-02 2016-06-20 株式会社メセナ Self-propelled type water purification apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617689A (en) * 1979-07-25 1981-02-19 Tadashi Niimi Method and apparatus for purification of contaminated water of lake and marsh, closed system sea area, treating pond and the like
JPS5827696A (en) * 1981-08-11 1983-02-18 Ebara Infilco Co Ltd Removal of nitrogen and phosphorus in waste water
JPS59123597A (en) * 1982-12-29 1984-07-17 Kurita Water Ind Ltd Dephosphorizing method
JPS6274498A (en) * 1985-09-27 1987-04-06 Mitsubishi Heavy Ind Ltd Treatment of organic sewage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617689A (en) * 1979-07-25 1981-02-19 Tadashi Niimi Method and apparatus for purification of contaminated water of lake and marsh, closed system sea area, treating pond and the like
JPS5827696A (en) * 1981-08-11 1983-02-18 Ebara Infilco Co Ltd Removal of nitrogen and phosphorus in waste water
JPS59123597A (en) * 1982-12-29 1984-07-17 Kurita Water Ind Ltd Dephosphorizing method
JPS6274498A (en) * 1985-09-27 1987-04-06 Mitsubishi Heavy Ind Ltd Treatment of organic sewage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667688A (en) * 1991-12-23 1997-09-16 T. Kruger Systems As Process for the purification of polluted water
US5896167A (en) * 1994-10-21 1999-04-20 Toyota Jidosha Kabushiki Kaisha Apparatus for photographing moving body
KR20010016337A (en) * 2000-12-04 2001-03-05 이석진 Wastewater purification treatment system
JP2002370097A (en) * 2001-06-13 2002-12-24 Nippon Steel Chem Co Ltd Nitrate nitrogen treatment apparatus and treatment method using the same
JP2008000745A (en) * 2006-05-25 2008-01-10 Kato Construction Co Ltd Method for purifying water
JP2016107169A (en) * 2014-12-02 2016-06-20 株式会社メセナ Self-propelled type water purification apparatus

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