JPH0240296A - Apparatus and method for treating waste water - Google Patents
Apparatus and method for treating waste waterInfo
- Publication number
- JPH0240296A JPH0240296A JP63191696A JP19169688A JPH0240296A JP H0240296 A JPH0240296 A JP H0240296A JP 63191696 A JP63191696 A JP 63191696A JP 19169688 A JP19169688 A JP 19169688A JP H0240296 A JPH0240296 A JP H0240296A
- Authority
- JP
- Japan
- Prior art keywords
- activated sludge
- wastewater
- treatment
- vessel
- aeration
- 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
- 239000002351 wastewater Substances 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title abstract description 12
- 239000010802 sludge Substances 0.000 claims abstract description 60
- 238000005273 aeration Methods 0.000 claims abstract description 48
- 238000004065 wastewater treatment Methods 0.000 claims description 21
- 239000005416 organic matter Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 239000007788 liquid Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 241000218691 Cupressaceae Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000013527 bean curd Nutrition 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002344 surface layer 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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、廃水処理装置及び廃水処理方法に関し、詳し
くは、有機物を多量に含む高濃度廃水を効率良く処理す
ることのできる廃水処理装置及び廃水処理方法に関する
ものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a wastewater treatment device and a wastewater treatment method, and more specifically, to a wastewater treatment device and a wastewater treatment method that can efficiently treat highly concentrated wastewater containing a large amount of organic matter. It relates to a wastewater treatment method.
回分活性汚泥処理法は、廃水中の有機物、窒素。 The batch activated sludge treatment method removes organic matter and nitrogen from wastewater.
リン等を除去して、即ち廃水のＴＯＣ，ＢＯＤ。Removal of phosphorus, etc., ie TOC, BOD of wastewater.
ＣＯＤ等を除去して廃水の浄化を行う方法として、従来
の曝気槽による活性汚泥処理に代わり近年多く用いられ
るようになってきている。特に特公昭５５−２４５９７
号公報の回分式活性汚泥処理における曝気方法等に示さ
れる、いわゆる制限曝気法による廃水処理は、バルキン
グを防止して効率の良い廃水浄化を行えることが各種報
告されている。As a method for purifying wastewater by removing COD and the like, it has come to be widely used in recent years in place of the conventional activated sludge treatment using an aeration tank. In particular, special public service No. 55-24597
Various reports have been made that wastewater treatment using the so-called limited aeration method, as shown in the aeration method for batch activated sludge treatment in the above publication, can prevent bulking and efficiently purify wastewater.
しかしながら、この回分活性汚泥処理法は、ＢＯＤ、Ｃ
ＯＤ等の濃度が２．０００ｐ１）Ｉｍ程度の廃水につい
ては効率の良い浄化処理が行えるものの、この濃度以上
のＢＯＤ、ＣＯＤ等を含有した廃水（高濃度廃水）につ
いては処理能力を越えることが多く、浄化水の水質低下
を生じる虞があった。However, this batch activated sludge treatment method
Although efficient purification treatment is possible for wastewater with a concentration of OD, etc. of around 2.000 p1) Im, the treatment capacity is often exceeded for wastewater containing BOD, COD, etc. exceeding this concentration (high concentration wastewater). , there was a risk that the quality of purified water would deteriorate.
そこで本発明は、ＢＯＤ、ＣＯＤ等を高濃度に含む廃水
の浄化を効率良く行うことのできる廃水処理装置、及び
高濃度廃水と低濃度廃水とを排出するような場合におけ
る廃水処理方法を提供することを目的とする。Therefore, the present invention provides a wastewater treatment device that can efficiently purify wastewater containing high concentrations of BOD, COD, etc., and a wastewater treatment method for discharging high concentration wastewater and low concentration wastewater. The purpose is to
（課題を解決するための手段）
上記した目的を達成するために本発明は、有機物を含む
廃水の回分活性汚泥処理を行う回分活性汚泥処理槽の前
段に、廃水を曝気処理して活性汚泥処理を行う曝気槽を
設けたことを特徴とする廃水処理装置、及び前記廃水処
理装置を用いて、有機物を多量に含む高濃度廃水は、そ
の一部又は全量を前記曝気槽で活性汚泥処理を行った後
に前記回分活性汚泥処理槽に導入して回分活性汚泥処理
を行い、一方有機物を少量に含む低濃度廃水は、曝気槽
に導入することなく直接回分活性汚泥処理槽に導入して
回分活性汚泥処理を行うことを特徴とする廃水処理方法
を提供するものである。(Means for Solving the Problems) In order to achieve the above object, the present invention provides an activated sludge treatment system in which wastewater is subjected to aeration treatment before a batch activated sludge treatment tank that performs batch activated sludge treatment of wastewater containing organic matter. A wastewater treatment device characterized in that it is equipped with an aeration tank that performs After that, the wastewater is introduced into the batch activated sludge treatment tank to perform batch activated sludge treatment, while the low concentration wastewater containing a small amount of organic matter is directly introduced into the batch activated sludge treatment tank without being introduced into the aeration tank to perform batch activated sludge treatment. The present invention provides a wastewater treatment method characterized by carrying out treatment.
従って、有機物を多量に含む廃水を、曝気槽で活性汚泥
処理して廃水中のＢＯＤ、ＣＯＤ等の成分をある程度ま
で除去した後に回分活性汚泥処理槽に導入するため、回
分活性汚泥処ｙＪ！檜の処理能力を越えることが無く、
必要な浄化を効率良く行うことができる。また本発明の
廃水処理方法によれば、高濃度廃水の一部又は全量を曝
気槽に導入して活性汚泥処理して低濃度とするので、高
濃度廃水を水等で希釈する必要がない。また低濃度廃水
は、そのまま回分活性汚泥処理槽に導入するので曝気槽
の負荷を低減できる。Therefore, wastewater containing a large amount of organic matter is treated with activated sludge in an aeration tank to remove components such as BOD and COD in the wastewater to a certain extent before being introduced into a batch activated sludge treatment tank. Without exceeding the processing capacity of cypress,
Necessary purification can be performed efficiently. Furthermore, according to the wastewater treatment method of the present invention, part or all of the high concentration wastewater is introduced into the aeration tank and treated with activated sludge to reduce the concentration, so there is no need to dilute the high concentration wastewater with water or the like. Furthermore, since the low concentration wastewater is directly introduced into the batch activated sludge treatment tank, the load on the aeration tank can be reduced.
以下、本発明を図に示す実施例装置に基づいてさらに詳
細に説明する。EMBODIMENT OF THE INVENTION Hereinafter, the present invention will be explained in more detail based on an embodiment shown in the drawings.
本発明による廃水処理装置１は、回分活性汚泥処理槽２
と、その前段に設けられる曝気槽３とで構成されるもの
で、以下廃水の流れに従って、この廃水処理装置１を説
明する。The wastewater treatment device 1 according to the present invention includes a batch activated sludge treatment tank 2
The wastewater treatment apparatus 1 is composed of a wastewater treatment apparatus 1 and an aeration tank 3 provided in the preceding stage.The wastewater treatment apparatus 1 will be explained below according to the flow of wastewater.
まず高濃度にＢＯＤ、ＣＯＤを含む廃水は、原水ビット
４からポンプ５により導出して、配管６゜弁７を経て曝
気ＷＩ３に導入する。曝気１３内に導入した廃水は、曝
気槽３の底部に設けた気液混合装置８により空気と混合
して活性汚泥処理を行う。First, wastewater containing high concentrations of BOD and COD is drawn out from the raw water bit 4 by a pump 5, and introduced into the aeration WI3 through a 6° pipe valve 7. The wastewater introduced into the aeration tank 3 is mixed with air by a gas-liquid mixing device 8 provided at the bottom of the aeration tank 3 to perform activated sludge treatment.
この気液混合装置８は、循環ポンプ９及びブロワ１０を
備えており、槽内の廃水を循環ポンプ９で循環させると
ともに、該循環ポンプ９の吐出口９ａ近傍に負圧部を形
成してブロワ１０から送風される空気を吸込むもので、
一般的な送風のみによる曝気に比べて空気を微細化させ
て廃水中に分散させることができ、廃水の循環効率や溶
存酸素の富化効率が優れている。This gas-liquid mixing device 8 is equipped with a circulation pump 9 and a blower 10, and the circulation pump 9 circulates the wastewater in the tank, and a negative pressure section is formed near the discharge port 9a of the circulation pump 9, and the blower It sucks the air blown from 10,
Compared to aeration using only general air blowing, the air can be made finer and dispersed in the wastewater, resulting in superior wastewater circulation efficiency and dissolved oxygen enrichment efficiency.
曝気槽３で所定時間曝気して活性汚泥処理を行った廃水
は、所定ＦＲ間静止させて汚泥を沈降させる。汚泥と分
離した曝気処理水（曝気槽上澄み液）は、排出口１１か
ら導出してポンプ１２により回分活性汚泥処理槽２に導
入する。The wastewater that has been subjected to activated sludge treatment by aeration in the aeration tank 3 for a predetermined period of time is allowed to stand still for a predetermined FR to allow the sludge to settle. The aerated water separated from the sludge (aeration tank supernatant liquid) is led out from the discharge port 11 and introduced into the batch activated sludge treatment tank 2 by the pump 12.
回分活性汚泥処理槽２では、制限曝気法により処理が行
われる。即ち、曝気槽３から導入した処理水は、回分活
性汚泥処理槽２で所定時間静置して嫌気状態で処理し、
次いでブロワ１３から送給する空気により曝気して好気
状態で処理する。In the batch activated sludge treatment tank 2, treatment is performed by a limited aeration method. That is, the treated water introduced from the aeration tank 3 is left standing in the batch activated sludge treatment tank 2 for a predetermined period of time to be treated in an anaerobic state.
Next, it is aerated with air sent from the blower 13 and processed in an aerobic state.
この回分活性汚泥処理槽２の中央部には、下部の空気吹
出口１／Ｉに対応してドラフトチューブ１５が設けられ
ている。曝気処理時に空気吹出口１４から上昇する気泡
は、このドラフトデユープ１５内を処理水と共に上昇し
、ドラフトチューブ１５の内方に処理水の上昇流を形成
するため、ドラフトチューブ１５の外周側に処理水の下
降流が形成される。これにより、槽内に処理水の循環流
が形成されて曝気空気との十分な接触が行われる。A draft tube 15 is provided in the center of the batch activated sludge treatment tank 2 in correspondence with the lower air outlet 1/I. Bubbles rising from the air outlet 14 during aeration treatment rise together with the treated water inside the draft duplex 15 and form an upward flow of the treated water inside the draft tube 15. A descending flow is formed. This creates a circulating flow of treated water in the tank and sufficient contact with the aeration air.
またドラフトチューブ１５を多孔質セラミックで形成し
て、その表層部に好気性微生物、内部に嫌気性微生物を
吸着固定化することにより、さらに効率良く浄化処理を
行うことができる。Further, by forming the draft tube 15 from porous ceramic and adsorbing and immobilizing aerobic microorganisms on the surface layer and anaerobic microorganisms inside, purification processing can be performed more efficiently.
処理模の浄化水は、汚泥を沈降分離させた後に排水口１
６から排出する。また曝気槽３及び回分活性汚泥処理槽
２内の過剰の汚泥は、曝気槽３のυＦ出口１１及び回分
活性汚泥処理槽２の抜堰り口１７から弁１８．１８を経
る管路１９により抜取られる。The treated water is sent to drain port 1 after the sludge has been sedimented and separated.
Discharge from 6. Excess sludge in the aeration tank 3 and the batch activated sludge treatment tank 2 is extracted from the υF outlet 11 of the aeration tank 3 and the extraction weir opening 17 of the batch activated sludge treatment tank 2 through a pipe 19 passing through valves 18 and 18. It will be done.
また低濃度廃水は、曝気槽３に導入することなく、原水
ビット４から管路２０により直接回分活性汚泥処理槽２
に導入して浄化処理を行うことができる。In addition, low concentration wastewater is directly transferred from the raw water bit 4 to the batch activated sludge treatment tank 2 through the pipe 20 without being introduced into the aeration tank 3.
can be introduced into the water for purification treatment.
尚、両槽２，３における活性汚泥の浄化作用については
、従来のこの種の装置と略同様であるため、詳細な説明
を省略する。また装置各部の構成は、処理量や廃水中の
成分、あるいは各構成部品の配置状態等により適宜最適
なものとすることができる。さらに、本発明における廃
水の高濃度とは、回分活性汚泥処理槽の処理能力より高
い濃度を表すもので、−膜内には、例えばＢＯＤの場合
は４０００ ｐｐｍ程度以上のものをいう。Note that the activated sludge purifying action in both tanks 2 and 3 is substantially the same as that of a conventional device of this type, so a detailed explanation will be omitted. Further, the configuration of each part of the apparatus can be appropriately optimized depending on the throughput, the components in the wastewater, the arrangement of each component, etc. Furthermore, the high concentration of wastewater in the present invention refers to a concentration higher than the processing capacity of the batch activated sludge treatment tank, and in the membrane, for example, in the case of BOD, it refers to about 4000 ppm or more.
次に本発明の廃水処理方法について説明する。Next, the wastewater treatment method of the present invention will be explained.
本発明の方法は、例えば各種の食品工場等で、午前中に
は原料の処理による高１度廃水を排出し、午後には処理
槽の洗浄等による低濃度廃水を排出するような場合に好
適なものである。以下この例に基づいて説明を行う。The method of the present invention is suitable, for example, in various food factories, etc., where high concentration wastewater from processing raw materials is discharged in the morning, and low concentration wastewater from cleaning treatment tanks etc. is discharged in the afternoon. It is something. A description will be given below based on this example.
まず午前中に排出した高濃度廃水は、その一部または全
量を原水ビット４から曝気槽３に導入して、上ｊホのご
とく曝気処理による活性汚泥処理を行う。曝気［３に導
入する高濃度廃水の量は、原水ビット４に残る高濃度廃
水が午後から排出される低濃度廃水により、回分活性汚
泥処理槽２で十分に処理可能な濃度に希釈できる間以下
とすれば良い。また曝気槽３における活性汚泥処理も、
後段の回分活性汚泥処理槽２で処理可能な濃度まで行え
ば十分である。First, a part or all of the highly concentrated wastewater discharged in the morning is introduced into the aeration tank 3 from the raw water bit 4, and activated sludge treatment is performed by aeration as described in j-e above. The amount of high-concentration wastewater introduced into aeration [3] is as long as the high-concentration wastewater remaining in the raw water bit 4 can be diluted to a concentration that can be sufficiently treated in the batch activated sludge treatment tank 2 by the low-concentration wastewater discharged in the afternoon. It's fine if you do this. In addition, the activated sludge treatment in the aeration tank 3
It is sufficient to reach a concentration that can be treated in the subsequent batch activated sludge treatment tank 2.
そして曝気槽３で処理した処理水と午後から排出する低
濃度廃水は、共に回分活性汚泥処理槽２に導入し、上述
のごとく制限曝気法により処理し、浄化して排出する。The treated water treated in the aeration tank 3 and the low concentration wastewater discharged in the afternoon are both introduced into the batch activated sludge treatment tank 2, treated by the limited aeration method as described above, purified and discharged.
このように、高濃度廃水を曝気槽３で処理して低濃度と
することにより、高濃度廃水を水等で希釈して低濃度と
する必要がないため、廃水総値が増すことがなく、小型
の回分活性汚泥処理槽２で十分な浄化処理を行うことが
できる。また低濃度廃水は、そのまま回分活性汚泥処理
槽２に導入するので、曝気槽の負荷を低減でき、小型の
もので十分な処理を行うことができる。従って、設備費
用も安価であり、運転コストも低順である。In this way, by treating high-concentration wastewater in the aeration tank 3 to reduce the concentration, there is no need to dilute the high-concentration wastewater with water or the like to reduce the concentration, so the total value of wastewater does not increase. Sufficient purification treatment can be performed with the small-sized batch activated sludge treatment tank 2. Furthermore, since the low concentration wastewater is directly introduced into the batch activated sludge treatment tank 2, the load on the aeration tank can be reduced, and a small-sized tank can perform sufficient treatment. Therefore, equipment costs are low, and operating costs are also low.
ＳＯＤ濃度８，８００η／ｆｌ、ＣＯＤ濃度５゜１７０
１１ｇ／Ｎの豆腐煮汁圧搾廃水３０１の内、２（ｌを曝
気槽に導入して８時間曝気処理を行ったところ、ＢＯＤ
１１度、が１４１０１Ｑ／ｆＪ 、 ＣｏＤｉｉｌ度が
１．０８０■／ｆＪとなった。この処理水と、ＢＯＤ濃
度５００η／ρ、ｃｏｏｓ度３８０り７ｇの豆［雑廃水
１５乃を共に回分活性汚泥処理槽に導入した。そして８
時間嫌気処理を行った後に１０時間曝気して好気処理を
行い、次いで３時間静冒して汚泥を沈降させた。排出さ
れる上澄み液のＢＯＤＵ［は１７ｔｎｑ／ｊ 、０００
ｍ度は３４＊／９であった。SOD concentration 8,800η/fl, COD concentration 5°170
Of the 11 g/N tofu boiling juice compression wastewater 301, 2 (l) was introduced into the aeration tank and aerated for 8 hours, resulting in BOD
11 degrees, was 14101Q/fJ, and CoDiil degree was 1.080■/fJ. This treated water and 7 g of beans (miscellaneous waste water) with a BOD concentration of 500 η/ρ and a coos degree of 380 were introduced into a batch activated sludge treatment tank. and 8
After performing anaerobic treatment for 1 hour, aerobic treatment was performed by aeration for 10 hours, and then left to stand for 3 hours to settle the sludge. The BODU of the supernatant liquid to be discharged is 17 tnq/j, 000
The m degree was 34*/9.
一方高濃度廃水をそのまま回分活性汚泥処理槽に導入し
て同様の処理を行ったところ、処理後の上澄み液のＢＯ
ＤＩ１１度は４７０Ｑ／Ｄ 、ＣＯＤ濃度は３６０■／
ｇであった。On the other hand, when high-concentration wastewater was directly introduced into a batch activated sludge treatment tank and subjected to the same treatment, the BO of the supernatant liquid after treatment was
DI11 degree is 470Q/D, COD concentration is 360■/
It was g.
尚、上記実験例では代表成分としてＢＯＤ、ＣＯＤを挙
げたが、他の成分についても同様の除去効果を得ること
ができた。In the above experimental example, BOD and COD were cited as representative components, but similar removal effects could be obtained for other components as well.
〔発明の効果］
本発明の装置は以上説明したように、回分活性汚泥処理
槽の前段に曝気槽を配設したので、高濃度廃水をあらか
じめ曝気槽で処理することにより、回分活性汚泥処理槽
の能力に児合った濃度とすることができ、回分活性汚泥
処理槽での除去処理を十分に行うことができる。[Effects of the Invention] As explained above, since the apparatus of the present invention has an aeration tank installed before the batch activated sludge treatment tank, high concentration wastewater can be treated in advance in the aeration tank. The concentration can be set to match the capacity of the sludge, and the removal treatment in the batch activated sludge treatment tank can be carried out sufficiently.
また本発明の方法によれば、高濃度廃水を水で希釈する
等の工程を必要とせずに低１度とすることができ、廃水
の総量が増加することがないため、小型の回分活性汚泥
処理槽で浄化処理することができる。また高濃度廃水の
一部又は全量を曝気槽で処理するので、低濃度廃水を含
めた全廃水を曝気処理するのに比べて小さな曝気槽で行
うことができる。従って、高濃度廃水と低濃度廃水を共
に排出するような工場等の廃水処理を容易に、かつ低コ
ストで行うことができる。Furthermore, according to the method of the present invention, high concentration wastewater can be reduced to a low temperature without the need for processes such as diluting it with water, and the total amount of wastewater does not increase. It can be purified in a treatment tank. Furthermore, since a part or all of the high concentration wastewater is treated in the aeration tank, the aeration treatment can be carried out in a smaller aeration tank compared to aeration treatment of all wastewater including low concentration wastewater. Therefore, wastewater treatment of factories and the like that discharge both high-concentration wastewater and low-concentration wastewater can be carried out easily and at low cost.
図は本発明の廃水処理装置の一実施例を示す説引回であ
る。
１・・・廃水処理装置 ２・・・回分活性汚泥処理槽
３・・・曝気ＦＭ ４・・・原水ビット ８・・・
気液混合装置 ９・・・循環ポンプ １４・・・空
気吹出口１５・・・ドラフトチューブThe figure is an explanatory diagram showing one embodiment of the wastewater treatment apparatus of the present invention. 1... Wastewater treatment equipment 2... Batch activated sludge treatment tank 3... Aeration FM 4... Raw water bit 8...
Gas-liquid mixing device 9...Circulation pump 14...Air outlet 15...Draft tube
Claims (1)
性汚泥処理槽の前段に、廃水を曝気処理して活性汚泥処
理を行う曝気槽を設けたことを特徴とする廃水処理装置
。 ２、請求項１記載の廃水処理装置において、有機物を多
量に含む高濃度廃水は、その一部又は全量を前記曝気槽
で活性汚泥処理を行った後に前記回分活性汚泥処理槽に
導入して回分活性汚泥処理を行い、一方有機物を少量に
含む低濃度廃水は、曝気槽に導入することなく直接回分
活性汚泥処理槽に導入して回分活性汚泥処理を行うこと
を特徴とする廃水処理方法。[Claims] 1. Wastewater characterized in that an aeration tank for aerating wastewater and performing activated sludge treatment is provided upstream of a batch activated sludge treatment tank for performing batch activated sludge treatment of wastewater containing organic matter. Processing equipment. 2. In the wastewater treatment apparatus according to claim 1, a part or all of the highly concentrated wastewater containing a large amount of organic matter is subjected to activated sludge treatment in the aeration tank, and then introduced into the batch activated sludge treatment tank for batch treatment. A wastewater treatment method characterized in that activated sludge treatment is performed, while low concentration wastewater containing a small amount of organic matter is directly introduced into a batch activated sludge treatment tank without being introduced into an aeration tank to perform batch activated sludge treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63191696A JPH0240296A (en) | 1988-07-30 | 1988-07-30 | Apparatus and method for treating waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63191696A JPH0240296A (en) | 1988-07-30 | 1988-07-30 | Apparatus and method for treating waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0240296A true JPH0240296A (en) | 1990-02-09 |
Family
ID=16278949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63191696A Pending JPH0240296A (en) | 1988-07-30 | 1988-07-30 | Apparatus and method for treating waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0240296A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008024445A2 (en) * | 2006-08-23 | 2008-02-28 | Siemens Water Technologies Corp. | Sequencing batch reactor with continuous membrane filtration and solids reduction |
| US8840783B2 (en) | 2007-05-29 | 2014-09-23 | Evoqua Water Technologies Llc | Water treatment membrane cleaning with pulsed airlift pump |
| US8858796B2 (en) | 2005-08-22 | 2014-10-14 | Evoqua Water Technologies Llc | Assembly for water filtration using a tube manifold to minimise backwash |
| US8956464B2 (en) | 2009-06-11 | 2015-02-17 | Evoqua Water Technologies Llc | Method of cleaning membranes |
| US9022224B2 (en) | 2010-09-24 | 2015-05-05 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
| US9023206B2 (en) | 2008-07-24 | 2015-05-05 | Evoqua Water Technologies Llc | Frame system for membrane filtration modules |
| US9533261B2 (en) | 2012-06-28 | 2017-01-03 | Evoqua Water Technologies Llc | Potting method |
| US9604166B2 (en) | 2011-09-30 | 2017-03-28 | Evoqua Water Technologies Llc | Manifold arrangement |
| US9675938B2 (en) | 2005-04-29 | 2017-06-13 | Evoqua Water Technologies Llc | Chemical clean for membrane filter |
| US9764289B2 (en) | 2012-09-26 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane securement device |
| US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
| US9815027B2 (en) | 2012-09-27 | 2017-11-14 | Evoqua Water Technologies Llc | Gas scouring apparatus for immersed membranes |
| US9914097B2 (en) | 2010-04-30 | 2018-03-13 | Evoqua Water Technologies Llc | Fluid flow distribution device |
| US9925499B2 (en) | 2011-09-30 | 2018-03-27 | Evoqua Water Technologies Llc | Isolation valve with seal for end cap of a filtration system |
| US9962865B2 (en) | 2012-09-26 | 2018-05-08 | Evoqua Water Technologies Llc | Membrane potting methods |
| US10322375B2 (en) | 2015-07-14 | 2019-06-18 | Evoqua Water Technologies Llc | Aeration device for filtration system |
| US10427102B2 (en) | 2013-10-02 | 2019-10-01 | Evoqua Water Technologies Llc | Method and device for repairing a membrane filtration module |
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|---|---|---|---|---|
| JPS5426062A (en) * | 1977-07-29 | 1979-02-27 | Matsushita Electric Works Ltd | Apparatus for purifying and treating sanitary sewage |
| JPS634900A (en) * | 1986-06-26 | 1988-01-09 | Ebara Res Co Ltd | Batch-operated activated sludge treatment of organic waste water |
-
1988
- 1988-07-30 JP JP63191696A patent/JPH0240296A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426062A (en) * | 1977-07-29 | 1979-02-27 | Matsushita Electric Works Ltd | Apparatus for purifying and treating sanitary sewage |
| JPS634900A (en) * | 1986-06-26 | 1988-01-09 | Ebara Res Co Ltd | Batch-operated activated sludge treatment of organic waste water |
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|---|---|---|---|---|
| US9675938B2 (en) | 2005-04-29 | 2017-06-13 | Evoqua Water Technologies Llc | Chemical clean for membrane filter |
| US8858796B2 (en) | 2005-08-22 | 2014-10-14 | Evoqua Water Technologies Llc | Assembly for water filtration using a tube manifold to minimise backwash |
| US8894858B1 (en) | 2005-08-22 | 2014-11-25 | Evoqua Water Technologies Llc | Method and assembly for water filtration using a tube manifold to minimize backwash |
| WO2008024445A3 (en) * | 2006-08-23 | 2008-04-10 | Siemens Water Tech Corp | Sequencing batch reactor with continuous membrane filtration and solids reduction |
| WO2008024445A2 (en) * | 2006-08-23 | 2008-02-28 | Siemens Water Technologies Corp. | Sequencing batch reactor with continuous membrane filtration and solids reduction |
| US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
| US10507431B2 (en) | 2007-05-29 | 2019-12-17 | Evoqua Water Technologies Llc | Membrane cleaning with pulsed airlift pump |
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| US9925499B2 (en) | 2011-09-30 | 2018-03-27 | Evoqua Water Technologies Llc | Isolation valve with seal for end cap of a filtration system |
| US10391432B2 (en) | 2011-09-30 | 2019-08-27 | Evoqua Water Technologies Llc | Manifold arrangement |
| US11065569B2 (en) | 2011-09-30 | 2021-07-20 | Rohm And Haas Electronic Materials Singapore Pte. Ltd. | Manifold arrangement |
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| US9764289B2 (en) | 2012-09-26 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane securement device |
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| US10427102B2 (en) | 2013-10-02 | 2019-10-01 | Evoqua Water Technologies Llc | Method and device for repairing a membrane filtration module |
| US11173453B2 (en) | 2013-10-02 | 2021-11-16 | Rohm And Haas Electronic Materials Singapores | Method and device for repairing a membrane filtration module |
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