JP3160840B2 - Wastewater treatment method - Google Patents
Wastewater treatment methodInfo
- Publication number
- JP3160840B2 JP3160840B2 JP11383997A JP11383997A JP3160840B2 JP 3160840 B2 JP3160840 B2 JP 3160840B2 JP 11383997 A JP11383997 A JP 11383997A JP 11383997 A JP11383997 A JP 11383997A JP 3160840 B2 JP3160840 B2 JP 3160840B2
- Authority
- JP
- Japan
- Prior art keywords
- wastewater
- chlorine
- water
- treated water
- treatment
- 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.)
- Expired - Fee Related
Links
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Removal Of Specific Substances (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば食料品製造
工場、肥料製造工場、化学工場等の工場から排出される
工場廃水や、し尿処理場、下水処理場等に集められる生
活廃水等、各種廃水の処理方法に関するものである。The present invention relates to various types of wastewater, such as industrial wastewater discharged from factories such as food production plants, fertilizer production plants, and chemical factories, and domestic wastewater collected in human waste treatment plants and sewage treatment plants. The present invention relates to a method for treating wastewater.
【０００２】[0002]
【従来の技術】例えば、食料品工場、肥料製造工場、化
学工場等の各種工場では、工場から排出される工業廃水
を無害化するための浄化施設が設けられている。又、し
尿処理場や下水処理場は、集められたし尿や下水等の生
活廃水を清澄で安全なものとして放流するための浄化施
設である。これらの浄化施設における廃水の一般的な浄
化方法としては、先ず、一次処理として、土砂、その他
の固形物、粗大な浮遊物、懸濁物、油脂等の分離・除去
等が行われ、その後、二次処理として、活性汚泥法や、
散水ろ床法等といった浄化処理が行われる。例えば、図
２に示すものは、二次処理として活性汚泥法を利用した
従来の廃水処理のプロセスであり、廃水は、先ず調整槽
において、浮遊物、懸濁物、油脂等が除去された後、浄
化槽（ばっ気槽）に導かれ、通気攪拌（エアレーショ
ン）しながら活性汚泥と接触し、廃水中の有機物は活性
汚泥により吸着、酸化される。次に、この活性汚泥と廃
水との混合液は沈殿槽に導かれ、ここで活性汚泥と処理
水とに分離され、処理水はシャワリングルームなどにお
いて塩素や次亜塩素酸ソーダ等を用いた消毒により滅菌
された後、放流され、一方、活性汚泥の一部は返送汚泥
として処理槽（ばっ気槽）に戻され、その他は余剰汚泥
として排出、処理される。又、放流水に、より高度な水
質が要求される場合には、前記二次処理としての活性汚
泥法や散水ろ床法といった浄化処理の後、生物学的に窒
素硝化、脱窒素反応を行わせる方法や嫌気性・好気性条
件を組み合わせて生物学的なリン除去を行うといった高
級処理が行われる場合もある。2. Description of the Related Art For example, various factories such as a foodstuff factory, a fertilizer manufacturing factory, and a chemical factory are provided with a purification facility for detoxifying industrial wastewater discharged from the factory. The human waste treatment plant and the sewage treatment plant are purification facilities for discharging collected wastewater such as human waste and sewage as clear and safe. As a general purification method of wastewater in these purification facilities, first, as a primary treatment, separation and removal of earth and sand, other solid matter, coarse suspended matter, suspended matter, oils and fats, and the like are performed. As secondary treatment, activated sludge method,
Purification processing such as a trickling filter method is performed. For example, what is shown in FIG. 2 is a conventional wastewater treatment process using an activated sludge method as a secondary treatment. The wastewater is first removed from suspended matter, suspended matter, oils and fats in a regulating tank. Then, the wastewater is guided to a septic tank (aeration tank), and comes into contact with activated sludge while being aerated and aerated, whereby organic matter in wastewater is adsorbed and oxidized by the activated sludge. Next, the liquid mixture of the activated sludge and the wastewater is guided to a settling tank, where it is separated into activated sludge and treated water, and the treated water is chlorine or sodium hypochlorite in a showering room or the like. After being sterilized by disinfection, it is discharged. On the other hand, a part of the activated sludge is returned to a treatment tank (aeration tank) as returned sludge, and the other is discharged and treated as surplus sludge. In the case where higher water quality is required for the effluent, after the purification treatment such as the activated sludge method or the trickling filter method as the secondary treatment, biological nitrogen nitration and denitrification are performed. In some cases, high-grade treatment such as biological phosphorus removal is performed by a combination of a method of anaerobic and aerobic conditions.
【０００３】これら各種工場の浄化施設における廃水処
理や、し尿処理場、下水処理場等における廃水処理は、
いずれも、廃水を環境に無害な状態にして放流するため
に行われるのであるが、廃水浄化の際に浄化施設自体か
ら発生する臭気や汚泥等により二次公害を惹起しかねな
い問題をはらんでいる。又、廃水中の病菌等による悪弊
は、大変危険なものであるため、上記のような処理施設
では、処理水を放流する前に、上記したように塩素、あ
るいは次亜塩素酸ソーダ等を用いて塩素消毒を行って滅
菌した後、放流している。この塩素消毒による放流水か
らの病原性菌の排除は、法に基づくものであり、大いな
る効果がある。しかし、この塩素消毒された処理水が放
流される水域では、処理水中の残存塩素成分により微生
物の活性不全が発生し、微生物による臭気除去や汚泥消
滅の阻害要因ともなっている。このような放流される廃
水処理水中の残留塩素成分による微生物の活性不全によ
る臭気や汚泥の発生は、下水処理場等における排水の放
流開口部にはよく見かける光景である。[0003] Wastewater treatment in purification facilities of these various factories, and wastewater treatment in human waste treatment plants, sewage treatment plants, etc.
Both are performed to discharge wastewater in a state that is harmless to the environment.However, there is no problem that odor or sludge generated from the purification facility itself during wastewater purification may cause secondary pollution. In. In addition, since the evil caused by the disease and the like in the wastewater is very dangerous, in the treatment facility as described above, before discharging the treated water, use chlorine or sodium hypochlorite as described above. After chlorination and sterilization, they are released. This elimination of pathogenic bacteria from the effluent by chlorination is based on the law and has a great effect. However, in the water area where this chlorinated treated water is discharged, residual chlorine components in the treated water cause microbial activity failure, which is a factor inhibiting odor removal and sludge disappearance by the microorganism. The generation of odors and sludge due to the insufficiency of microorganisms due to residual chlorine components in the discharged wastewater treatment water is a sight often seen in drainage discharge openings in sewage treatment plants and the like.
【０００４】[0004]
【発明が解決しようとする課題】そこで、本発明では、
上記のような各種工場における廃水処理施設や、し尿処
理場、下水処理場などから放流される廃水処理水におけ
る臭気除去や汚泥消滅の阻害要因である残留塩素成分を
除去し、処理水が放流される水域における臭気や汚泥の
発生を抑制しうる廃水の処理方法を提供せんとするもの
である。Therefore, in the present invention,
Waste water treatment facilities in various factories such as the above, night soil treatment plants, removing residual chlorine components that are obstructive factors to sludge extinction in wastewater treated water discharged from sewage treatment plants, etc., and treated water is discharged It is an object of the present invention to provide a wastewater treatment method capable of suppressing generation of odor and sludge in a water area.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めに、請求項１に係る廃水の処理方法は、工場廃水、生
活廃水等の廃水を浄化処理した後の処理水を、塩素消毒
して放流するに際し、前記廃水の原水、浄化処理工程中
の廃水、又は消毒後の処理水に、塩素を除去しうる微生
物類及び酵素類から選ばれる少なくとも１種を塩素除去
剤として添加し、この塩素除去剤添加後の処理水を放流
するとともに、放流水の一部を前記廃水の原水又は廃水
を浄化する処理槽に返送することを特徴とする。又、請
求項２に係る廃水の浄化方法は、請求項１記載の方法に
おいて、前記塩素除去剤として、パイナップル果汁から
抽出したパイナップル酵素を利用してなることを特徴と
する。更に、請求項３に係る廃水の浄化方法は、請求項
１記載の方法において、前記塩素除去剤として、パイナ
ップル果汁から抽出したパイナップル酵素を主成分と
し、基剤として電子的に活性化した水を使った機能水を
用いてなることを特徴とする。そして、請求項４に係る
廃水の処理方法は、請求項３記載の方法において、前記
機能水に、窒素・リン・硫黄・金属化合物等を分解する
有用微生物群を含有させてなることを特徴とする。According to a first aspect of the present invention, there is provided a method of treating wastewater, comprising the steps of chlorinating treated water after purifying wastewater such as factory wastewater and domestic wastewater. At the time of discharge, at least one selected from microorganisms and enzymes capable of removing chlorine is added to the raw water of the wastewater, the wastewater in the purification treatment step, or the treated water after disinfection as a chlorine removing agent, The method is characterized in that the treated water after the addition of the chlorine removing agent is discharged, and a part of the discharged water is returned to a treatment tank for purifying the raw water or the wastewater. The method for purifying wastewater according to claim 2 is characterized in that, in the method according to claim 1, pineapple enzyme extracted from pineapple juice is used as the chlorine removing agent. Furthermore, the method for purifying wastewater according to claim 3 is the method according to claim 1, wherein the chlorine-removing agent contains pineapple enzyme extracted from pineapple juice as a main component, and electronically activated water as a base. It is characterized by using the used functional water. The method for treating wastewater according to claim 4 is characterized in that, in the method according to claim 3, the functional water contains a group of useful microorganisms that decompose nitrogen, phosphorus, sulfur, metal compounds, and the like. I do.
【０００６】[0006]
【作用】上記のような本発明に係る廃水の処理方法で
は、廃水の原水、浄化処理工程中の廃水、又は、浄化処
理し、塩素消毒された後の処理水に、上記のような塩素
除去剤を添加することで、処理水中から塩素分が除去さ
れ、処理水が放流される水域では、塩素により臭気除去
や汚泥消滅が阻害されることがなく、臭気や汚泥の発生
が抑制され、小魚等の魚類の生存が可能となる。更に、
この塩素除去剤を添加して放流される処理水には、前記
塩素除去剤として添加される微生物類や酵素類が残存し
ている。そこで、本発明では、この放流後の塩素除去剤
が残存している処理水を、再び処理すべき廃水の原水、
又は、廃水が処理される処理槽へ返送することで、浄化
処理、塩素消毒後の処理水に添加する塩素除去剤の添加
量を低減でき、放流される処理水における臭気除去や汚
泥消滅作用もより効果的に発揮される。According to the method for treating wastewater according to the present invention as described above, the raw water of the wastewater, the wastewater in the purification treatment process, or the treated water after the purification treatment and the chlorination is subjected to the above-described chlorine removal. Chlorine is removed from the treated water by adding the agent, and in the water area where the treated water is discharged, the odor removal and sludge disappearance are not hindered by chlorine, and the generation of odor and sludge is suppressed, Fish and other fish can survive. Furthermore,
Microorganisms and enzymes added as the chlorine removing agent remain in the treated water discharged after the addition of the chlorine removing agent. Therefore, in the present invention, the treated water in which the chlorine removing agent remains after the discharge is treated as raw water of wastewater to be treated again,
Or, by returning the wastewater to the treatment tank where the wastewater is treated, the amount of the chlorine remover added to the treated water after the purification treatment and the chlorination can be reduced, and the odor removal and the sludge elimination effect in the treated water discharged are also reduced. It is more effective.
【０００７】[0007]
【発明の実施の形態】以下、添付図面に基づいて本発明
に係る廃水の処理方法について更に詳細に説明するが、
これらは単なる例示であって、本発明はこれらに限定さ
れるものではない。図１は、本発明に係る廃水の処理方
法の１例を示す、二次処理として活性汚泥法を利用した
廃水処理のプロセスである。廃水は、先ず調整槽におい
て、浮遊物、懸濁物、油脂等を除去したのち、浄化槽
（ばっ気槽）に導かれ、通気攪拌しながら活性汚泥と接
触し、廃水中の有機物が活性汚泥により吸着、酸化され
る。次に、活性汚泥と廃水との混合液は、沈殿槽に導か
れ、ここで活性汚泥と処理水とに分離される。分離され
た活性汚泥の一部は返送汚泥として処理槽（ばっ気槽）
に戻され、その他は余剰汚泥として排出、処理される。
ここまでは従来の廃水処理方法と同様である。そして、
従来の処理方法では、活性汚泥と分離された処理水は、
シャワリングルームなどで塩素や次亜塩素酸ソーダ等に
より塩素消毒された後、そのまま放流されるのである
が、本発明では、前記塩素消毒された後の処理水を、更
に脱塩素槽に導き、この脱塩素槽において、塩素を除去
しうる微生物及び酵素から選ばれる少なくとも１種の塩
素除去剤を添加する。尚、この塩素除去剤の添加は、処
理水を脱塩素槽に導くことなく、塩素除去剤を処理水に
添加してもよい。その後、この塩素除去剤を添加した処
理水は、その一部は、図中破線で示すように、前記調整
槽に導入される廃水の原水、又は調整槽へ直接、又は浄
化槽（ばっ気槽）、沈殿槽等の処理槽に返送し、その他
の処理水はそのまま放流する。尚、上記では、塩素除去
剤の添加は、塩素消毒後の処理水に対して行ったが、廃
水の原液、あるいは浄化処理工程中の廃水に対して塩素
除去剤を添加するようにしてもよい。このように廃水の
原液、浄化処理工程における廃水に塩素除去剤を添加し
た場合であっても、処理水に対する塩素消毒の効果はい
ささかも影響されることはなく、滅菌効果の低減は見ら
れない。その一方で、放流後の処理水中における塩素分
は低減させることができるという、以遠効果というべき
作用を奏する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a wastewater treatment method according to the present invention will be described in more detail with reference to the accompanying drawings.
These are merely examples, and the present invention is not limited to these. FIG. 1 shows an example of a wastewater treatment method according to the present invention, which is a wastewater treatment process using an activated sludge method as a secondary treatment. The wastewater is first removed from suspended matter, suspended matter, oils and fats in a regulating tank, then guided to a purification tank (aeration tank), and brought into contact with the activated sludge with aeration and agitation. Adsorbed and oxidized. Next, the liquid mixture of activated sludge and wastewater is led to a settling tank, where it is separated into activated sludge and treated water. Part of the separated activated sludge is treated as return sludge in a treatment tank (aeration tank).
The other is discharged and treated as excess sludge.
Up to this point, it is the same as the conventional wastewater treatment method. And
In the conventional treatment method, the treated water separated from the activated sludge is:
After being disinfected with chlorine or sodium hypochlorite in a showering room or the like, it is discharged as it is.In the present invention, the treated water after being disinfected with chlorine is further guided to a dechlorination tank, In this dechlorination tank, at least one chlorine remover selected from microorganisms and enzymes capable of removing chlorine is added. The chlorine remover may be added to the treated water without introducing the treated water to the dechlorination tank. Thereafter, as shown by the broken line in the figure, part of the treated water to which the chlorine removing agent has been added is directly supplied to the raw water of wastewater introduced into the regulating tank, or to the regulating tank, or to a purification tank (aeration tank). , And returned to a treatment tank such as a sedimentation tank, and the other treated water is discharged as it is. In the above description, the chlorine remover is added to the treated water after the chlorine disinfection. However, the chlorine remover may be added to the undiluted liquid of the wastewater or to the wastewater in the purification process. . Thus, even when the chlorine removing agent is added to the undiluted solution of the wastewater and the wastewater in the purification treatment process, the effect of the chlorine disinfection on the treated water is not affected at all, and the sterilization effect is not reduced. . On the other hand, there is an effect that can be said to be a far more effect that the chlorine content in the treated water after release can be reduced.
【０００８】上記のような本発明に係る廃水の処理方法
によれば、活性汚泥法、散水ろ床法等の通常の浄化処理
を行った後、塩素消毒して放流される処理水に対して、
塩素除去剤を添加した後、放流するようにしたことによ
り、放流された処理水は、微生物による臭気除去や汚泥
消滅の阻害要因となる残留塩素成分が少ない無害で清澄
な水として放流され、この処理水が放流される水域で
は、微生物により臭気や汚泥の発生が抑制され、小魚が
生存しうるような、従来のように処理水の放流開口部に
おける臭気の発生もなく、又、魚等も生存可能な環境を
実現しうのである。According to the method for treating wastewater according to the present invention as described above, after performing a normal purification treatment such as an activated sludge method or a trickling filter method, the treated water discharged after chlorination is disinfected. ,
After the chlorine remover is added, the treated water discharged is released as harmless and clear water with a low residual chlorine component, which is a factor that hinders odor removal and sludge extinction by microorganisms. In the water area where treated water is discharged, the generation of odors and sludge is suppressed by microorganisms, and there is no odor at the treated water discharge opening as in the past, as small fish can survive. Can create a viable environment.
【０００９】塩素除去剤としては、例えば、パイナップ
ル酵素を用いることができる。このパイナップル酵素と
は、パイナップル果汁から抽出されるものであり、パイ
ナップル果汁を搾出し、酵素が活性状態のまま濃縮もし
くは乾燥させた液状または粉状のものであり、主成分
は、下記のような多種類の酵素である。なお、括弧内は
作用対象物である。アルコールデハイドロゲナーゼ（ア
ルコール）、ラクテートデハイドロゲナーゼ（乳糖）、
グルコース６リン酸デハイドロゲナーゼ（糖質）、アル
デヒドデハイドロゲナーゼ（アルデヒド）、Ｌ・アスパ
ルテイト・ベーターセミアルデヒド・ＮＡＤＰオキシド
レクターゼ（アルデヒド）、グルタミン酸デハイドロゲ
ナーゼ（アミノ酸）、アスパラギン酸セミアルデヒド・
デハイドロゲナーゼ（アミノ酸）、ＮＡＤＰＨ2 チクト
クロームＣ・リアクターゼ（ＮＡＤＰ）、グルタチオン
・デハイドロゲナーゼ（グルタチオン）、トレハローズ
リン酸シンテターゼ（糖質）、ポリフォスヘエードキナ
ーゼ（ＡＰＴ）、エタノールアミンフォスヘエードサイ
チジル・トライスフェラーゼ（ＣＴＰ）、トレハローズ
フォスファターゼ（糖質）、メタルチオ・フォスフォ・
グリセレート・フォスファターゼ（グリセリン）、クヌ
マラーゼ（イヌリン）、β−マンノシターゼ（糖質）、
ウリジン・ヌクレオシターゼ（アミノ酸）、シトシン・
ジアミナーゼ（シトシン）、メチルシステインシンテタ
ーゼ（アミノ酸）、アスパラギン酸シンテターゼ（ＡＰ
Ｔ）、コハク酸デハイドロゲナーゼ（コメク酸）、アコ
ニチン酸ハイドロラーゼ（クエン酸）、フマレイトハイ
ドロラーゼ（マロン酸）、マレイトデハイドロゲナーゼ
（マロン酸）、クエン酸シンテターゼ（アセチルＣｏｕ
Ａ）、イソクエン酸デハイドロゲナーゼ（クエン酸）、
ＬＳＮＡＤＰオキシダクターゼ（クエン酸）、モノアミ
ンオキシダクターゼ（アミン）、ヒスタミナーゼ（アミ
ン）、ピルビン酸デカルボキシラーゼ（オキソ酸）、Ａ
ＴＰアーゼ（ＡＴＰ）、ヌクレオチドピロフォスファタ
ーゼ（核酸）、エンドポリフォスファターゼ（ＡＴ
Ｐ）、ＡＴＰフォスフォハイドロラーゼ（ＡＴＰ）、オ
ロチジン５リン酸デカルボキシラーゼ（オロチジン）及
びその他の酵素。As the chlorine removing agent, for example, pineapple enzyme can be used. The pineapple enzyme is extracted from pineapple juice, squeezes out pineapple juice, and is a liquid or powdery substance that is concentrated or dried while the enzyme is in an active state. There are many kinds of enzymes. The object in parentheses is the operation target. Alcohol dehydrogenase (alcohol), lactate dehydrogenase (lactose),
Glucose 6-phosphate dehydrogenase (carbohydrate), aldehyde dehydrogenase (aldehyde), L-aspartate / beta-semialdehyde / NADP oxidolectase (aldehyde), glutamate dehydrogenase (amino acid), aspartic acid Semialdehyde ・
Dehydrogenase (amino acid), NADPH 2 cytochrome C-reactase (NADP), glutathione dehydrogenase (glutathione), trehalose phosphate synthetase (carbohydrate), polyphosphate hepatase (APT), ethanolamine Phosphate cytidyl trispherase (CTP), trehalose phosphatase (sugar), metalthiophospho
Glycerate phosphatase (glycerin), counumase (inulin), β-mannosidase (sugar),
Uridine nucleosidase (amino acid), cytosine
Diaminase (cytosine), methylcysteine synthetase (amino acid), aspartate synthetase (AP
T), succinate dehydrogenase (comecic acid), aconitate hydrolase (citrate), fumarate hydrolase (malonate), maleate dehydrogenase (malonate), citrate synthetase (acetyl Cou)
A), isocitrate dehydrogenase (citrate),
LSNADP oxidase (citrate), monoamine oxidase (amine), histaminese (amine), pyruvate decarboxylase (oxo acid), A
TPase (ATP), nucleotide pyrophosphatase (nucleic acid), endopolyphosphatase (AT
P), ATP phosphohydrolase (ATP), orotidine pentaphosphate decarboxylase (orotidine) and other enzymes.
【００１０】更に、上記のパイナップル酵素を主成分と
し、基剤として電子的に活性化した水を使った機能水を
用いることで、処理水中の塩素を除去するだけでなく、
有機物分解能をより強化することができる。この活性化
された水とは、放射光物質と指向性の高いパルス状電子
により電子的に活性化した水である。このパイナップル
酵素を主成分とする機能水を用いるた場合には、水中微
生物を活性することにより、放流水域の有機物分解が促
進され、堆積汚泥が減少し、又、悪臭の原因であるメタ
ンガス、硫化水素など、有毒ガスの分解を促進するとと
もに、新たな悪臭ガスの発生を抑制する。又、パイナッ
プル酵素は、化学薬品ではなく、１００％天然成分であ
るため、生物環境に悪影響を与えるおそれは全くない。
又、この機能水には、窒素・リン・硫黄・金属化合物分
解菌等の有用微生物群を含有させるとより好ましい。こ
のような機能水を用いることで、脱水素・脱酸素・脱塩
素・脱炭酸・脱アミノ酸等の作用を持った上記のような
高分子有機化合物分解酵素が、汚水、汚泥等の中に含ま
れる、糖質、タンパク質、脂肪、合成樹脂成分、有毒金
属化合物等を小分子化合物や無機化合物に漸次分解し、
放流水をより確実に浄化することができるとともに、こ
の放流水を廃水の原水、浄化処理工程中の廃水等へ返送
した場合の廃水の浄化効率をより向上させることができ
る。Furthermore, by using functional water containing the above-mentioned pineapple enzyme as a main component and electronically activated water as a base, not only chlorine in the treated water can be removed, but also
Organic matter resolution can be further enhanced. The activated water is water that has been electronically activated by a synchrotron radiation substance and pulsed electrons having high directivity. When the functional water containing pineapple enzyme as a main component is used, the decomposition of organic matter in the discharge water area is promoted by activating the underwater microorganisms, the sedimentation sludge is reduced, and methane gas and sulfide, which cause odor, are caused. It promotes the decomposition of toxic gases such as hydrogen and suppresses the generation of new odorous gases. In addition, pineapple enzyme is not a chemical but a 100% natural component, and therefore has no possibility of adversely affecting the biological environment.
It is more preferable that the functional water contains useful microorganisms such as nitrogen, phosphorus, sulfur and metal compound decomposing bacteria. By using such functional water, the above-mentioned high-molecular-weight-organic-compound-degrading enzyme having an action of dehydrogenation, deoxygenation, dechlorination, decarboxylation, deamino acid, etc. is contained in sewage, sludge, etc. Gradually decompose sugars, proteins, fats, synthetic resin components, toxic metal compounds, etc. into small molecule compounds and inorganic compounds,
The effluent can be more reliably purified, and the effluent purification efficiency can be further improved when the effluent is returned to the raw wastewater, the wastewater in the purification process, or the like.
【００１１】更に、処理水には、上記のような塩素除去
剤に加えて、硫化水素等の悪臭成分を除去しうる無臭化
微生物等を添加することもできる。この無臭化微生物と
しては、例えば、硫化水素、メルカプタン類を対象とす
るロドコッカスＢ２６１株や硫化水素を対象とするなど
を挙げることができる。Further, in the treated water, in addition to the above-described chlorine removing agent, a deodorizing microorganism capable of removing malodorous components such as hydrogen sulfide can be added. Examples of the deodorized microorganism include Rhodococcus B261 strain targeting hydrogen sulfide and mercaptans, and targeting hydrogen sulfide.
【００１２】尚、上記では、活性汚泥法を利用した処理
方法について説明したが、本発明はこれに限定されるも
のではなく、活性汚泥法の代わりに、公知の他の処理
法、例えば、散水ろ床法、メタン発酵法等を利用するこ
ともでき、更に、前記のような処理法に、生物学的に窒
素硝化、脱窒素反応を行わせる方法や嫌気性・好気性条
件を組み合わせて生物学的なリン除去を行うといった、
より高級な処理を組み合わせることもできる。In the above, the treatment method using the activated sludge method has been described. However, the present invention is not limited to this. Instead of the activated sludge method, other known treatment methods, such as water spraying, may be used. A filter bed method, a methane fermentation method, or the like can be used.Furthermore, the treatment method described above can be combined with a biological nitrogen nitrification or denitrification reaction, or a combination of anaerobic and aerobic conditions. Such as performing chemical phosphorus removal.
More sophisticated processing can be combined.
【００１３】[0013]
【発明の効果】上記のように本発明によれば、食料品製
造工場、肥料製造工場、化学工場等の工場における工場
廃水処理設備、下水処理場、し尿処理場等における生活
廃水処理設備における廃水処理に際して、処理後、塩素
消毒して放流される処理水中の臭気除去、汚泥消滅の阻
害要因である塩素成分を除去することで、処理水が放流
される水域における臭気、汚泥の発生を抑制しうるとと
もに、塩素除去剤を含む処理水を、処理される廃水の原
水や処理槽へ返送することで、塩素除去剤の全体使用量
を低減し、かつ浄化処理をより効率的に行うことができ
る。As described above, according to the present invention, wastewater treatment equipment in factories such as foodstuff manufacturing plants, fertilizer production plants, and chemical factories, wastewater treatment facilities in domestic wastewater treatment facilities in sewage treatment plants, human waste treatment plants, and the like. At the time of treatment, after treatment, chlorine is disinfected and discharged, and the odor removal in the treated water discharged, and the chlorine component which is a hindrance factor of sludge elimination are removed, thereby suppressing the generation of odor and sludge in the water area where the treated water is discharged. In addition, by returning the treated water containing the chlorine remover to the raw water or the treatment tank of the wastewater to be treated, the total amount of the chlorine remover used can be reduced, and the purification treatment can be performed more efficiently. .
【図１】 本発明に係る廃水の処理方法の一例を示す活
性汚泥法を利用した処理プロセスの説明図である。FIG. 1 is an explanatory diagram of a treatment process using an activated sludge method showing an example of a wastewater treatment method according to the present invention.
【図２】 従来の活性汚泥法を利用した廃水の処理プロ
セスの説明図である。FIG. 2 is an explanatory diagram of a wastewater treatment process using a conventional activated sludge method.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ０２Ｆ 1/50 ５６０ Ｃ０２Ｆ 1/50 ５６０Ｈ ５６０Ｚ 1/58 1/58 Ｌ 1/76 ＺＡＢ 1/76 ＺＡＢＡ 3/34 3/34 Ｚ (56)参考文献 特開 平８−173948（ＪＰ，Ａ) 特開 平６−285181（ＪＰ，Ａ) 特開 昭62−239982（ＪＰ，Ａ) 特開 昭51−76849（ＪＰ，Ａ) 特開 昭51−13155（ＪＰ，Ａ) 特開 平８−57497（ＪＰ，Ａ) 特開 平８−215696（ＪＰ，Ａ) 特開 平８−187077（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C02F 1/00 C02F 1/50 C02F 1/58 C02F 1/76 C02F 3/34 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification code FI C02F 1/50 560 C02F 1/50 560H 560Z 1/58 1/58 L 1/76 ZAB 1/76 ZABA 3/34 3/34 Z (56) References JP-A-8-173948 (JP, A) JP-A-6-285181 (JP, A) JP-A-62-293982 (JP, A) JP-A-51-76849 (JP, A) JP-A-51-13155 (JP, A) JP-A-8-57497 (JP, A) JP-A-8-215696 (JP, A) JP-A-8-187077 (JP, A) (58) (Int.Cl. 7 , DB name) C02F 1/00 C02F 1/50 C02F 1/58 C02F 1/76 C02F 3/34
Claims (4)
した後の処理水を、塩素消毒して放流するに際し、前記
廃水の原水、浄化処理工程中の廃水、又は消毒後の処理
水に、塩素を除去しうる微生物類及び酵素類から選ばれ
る少なくとも１種を塩素除去剤として添加し、この塩素
除去剤添加後の処理水を放水するとともに、放流水の一
部を前記廃水の原水又は廃水を浄化する処理槽に返送す
ることを特徴とする廃水の処理方法。Claims 1. When purifying treated water after purifying wastewater such as industrial wastewater and domestic wastewater, the chlorine is disinfected and discharged, and the treated water is treated as raw water of the wastewater, wastewater in a purification treatment process, or treated water after disinfection. , At least one selected from microorganisms and enzymes capable of removing chlorine is added as a chlorine remover, and the treated water after the addition of the chlorine remover is discharged, and a part of the discharge water is treated as the raw wastewater or A method for treating wastewater, comprising returning the wastewater to a treatment tank for purifying the wastewater.
汁から抽出したパイナップル酵素を利用してなることを
特徴とする請求項１記載の廃水の処理方法。2. The method for treating wastewater according to claim 1, wherein a pineapple enzyme extracted from pineapple juice is used as the chlorine removing agent.
汁から抽出したパイナップル酵素を主成分とし、基剤と
して、電子的に活性化した水を使った機能水を用いてな
ることを特徴とする請求項１記載の廃水の処理方法。3. The method according to claim 1, wherein the chlorine-removing agent comprises pineapple enzyme extracted from pineapple juice as a main component and functional water using electronically activated water as a base. The method for treating wastewater according to claim 1.
化合物等を分解する有用微生物群を含有させてなること
を特徴とする請求項３記載の廃水の処理方法。4. The method for treating wastewater according to claim 3, wherein said functional water contains useful microorganisms that decompose nitrogen, phosphorus, sulfur, metal compounds and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11383997A JP3160840B2 (en) | 1997-05-01 | 1997-05-01 | Wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11383997A JP3160840B2 (en) | 1997-05-01 | 1997-05-01 | Wastewater treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10305273A JPH10305273A (en) | 1998-11-17 |
| JP3160840B2 true JP3160840B2 (en) | 2001-04-25 |
Family
ID=14622352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11383997A Expired - Fee Related JP3160840B2 (en) | 1997-05-01 | 1997-05-01 | Wastewater treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3160840B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180037315A (en) | 2015-02-25 | 2018-04-11 | 와이케이케이 가부시끼가이샤 | Slider for slide fastener |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4690273B2 (en) * | 2006-09-05 | 2011-06-01 | 株式会社御池鐵工所 | Drying equipment |
| JP2009226280A (en) * | 2008-03-21 | 2009-10-08 | Tadayoshi Yoshida | Method for purificating circulating water and circulation system |
| JP5302228B2 (en) * | 2009-01-29 | 2013-10-02 | 修一 汐見 | Waste water purification treatment method and waste water purification treatment method |
| JP5238946B1 (en) * | 2012-03-05 | 2013-07-17 | 株式会社セイネン | Biological treatment agent |
-
1997
- 1997-05-01 JP JP11383997A patent/JP3160840B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180037315A (en) | 2015-02-25 | 2018-04-11 | 와이케이케이 가부시끼가이샤 | Slider for slide fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10305273A (en) | 1998-11-17 |
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