JPH0295498A - Method and apparatus for treating water - Google Patents
Method and apparatus for treating waterInfo
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000011282 treatment Methods 0.000 claims abstract description 73
- 244000005700 microbiome Species 0.000 claims abstract description 39
- 241000195493 Cryptophyta Species 0.000 claims abstract description 27
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 20
- 238000012851 eutrophication Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 18
- 239000011574 phosphorus Substances 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 10
- 239000004575 stone Substances 0.000 abstract description 4
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract 3
- 230000000644 propagated effect Effects 0.000 abstract 3
- 241000233866 Fungi Species 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000001311 chemical methods and process Methods 0.000 abstract 1
- 239000000701 coagulant Substances 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 241000192700 Cyanobacteria Species 0.000 description 11
- 230000001580 bacterial effect Effects 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000005416 organic matter Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000002233 Penicillium roqueforti Nutrition 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- 235000019645 odor Nutrition 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 241000195628 Chlorophyta Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002356 single layer Substances 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
- 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
Description
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.
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 ■.
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
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)
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.
、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
、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.
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.
、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.
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)
| 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)
| 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 |
-
1988
- 1988-09-30 JP JP63244283A patent/JPH0295498A/en active Pending
Patent Citations (4)
| 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)
| 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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