JPS6316096A - Treatment of organic waste water - Google Patents
Treatment of organic waste waterInfo
- Publication number
- JPS6316096A JPS6316096A JP61160619A JP16061986A JPS6316096A JP S6316096 A JPS6316096 A JP S6316096A JP 61160619 A JP61160619 A JP 61160619A JP 16061986 A JP16061986 A JP 16061986A JP S6316096 A JPS6316096 A JP S6316096A
- Authority
- JP
- Japan
- Prior art keywords
- activated sludge
- activated carbon
- slurry
- granular
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 5
- 239000010815 organic waste Substances 0.000 title abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000010802 sludge Substances 0.000 claims abstract description 64
- 239000012528 membrane Substances 0.000 claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 238000005273 aeration Methods 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 23
- 239000002351 wastewater Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 239000011268 mixed slurry Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010800 human waste Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000000725 suspension 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
- Activated Sludge Processes (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、し尿なとの有機性廃水を浄化する新規なプロ
セスに関するものである。とくに高濃度有機性汚水の処
理に好適なプロセスを提供するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a novel process for purifying organic wastewater including human waste. In particular, it provides a process suitable for treating highly concentrated organic wastewater.
［従来の技術］
従来活性汚泥法の曝気槽に粉末活性炭を添加して、有機
性廃水を生物、物理化学的に処理する方法が公知である
。（粉末活性炭添加活性汚泥法と呼ばれている）
しかし、この方法は、粉末活性炭と活性汚泥との分級が
極めて困難であるため粉末活性炭は使い捨てせざるを）
ｑず、ランニングコストが高いという問題点があった。[Prior Art] A method of biologically and physicochemically treating organic wastewater by adding powdered activated carbon to an aeration tank of a conventional activated sludge method is known. (This method is called the powdered activated carbon added activated sludge method.) However, in this method, it is extremely difficult to separate the powdered activated carbon from the activated sludge, so the powdered activated carbon must be discarded.)
First, there was the problem of high running costs.
（粉末活性炭は余剰活性汚泥と共に系外に排出されてし
まうので）
一方、最近活性汚泥法において活性汚泥を沈降分離する
ことなく、直接ＵＦ膜で固液分離する方法が中水道およ
びし尿処理の分野で実用化されている。(Because the powdered activated carbon is discharged out of the system along with the excess activated sludge.) On the other hand, in the activated sludge method, a method in which solid-liquid separation is performed directly using a UF membrane without sedimentation separation of activated sludge has recently been introduced in the field of gray water and human waste treatment. It has been put into practical use.
しかしＵＦ膜で、ＳＳのほかにコロイド状、高分子性の
ＣＯＤ、色度の一部も捕捉分離されるため、処理系内に
難生物分解性のＣＯＤ、色度成分が蓄積するという問題
点が認められる。However, in addition to SS, the UF membrane also captures and separates colloidal and polymeric COD and a portion of the chromaticity, resulting in the problem that non-biodegradable COD and chromaticity components accumulate in the treatment system. is recognized.
゛［発明が解決しようとする問題点］
■ 粉末活性炭の使い捨てを不要にし、ランニングコス
トの大幅な節減を図る。また活性炭の生物再生効果を高
める。゛ [Problems to be solved by the invention] ■ Eliminate the need to dispose of powdered activated carbon and significantly reduce running costs. It also enhances the biological regeneration effect of activated carbon.
■ 活性汚泥→膜分離プロセスにおける難生物分解性成
分の処理系内の蓄積を未然に防ぐ。■ Prevents the accumulation of non-biodegradable components in the treatment system during the activated sludge → membrane separation process.
以上の問題を解決すべく新プロセスを確立することを課
題としている。The task is to establish a new process to solve the above problems.
［問題点を解決するための手段］
本発明は、有機性廃水を活性汚泥処理したのち：核工程
から流出する活性汚泥スラリーを粒状活性炭の共存下で
曝気攪拌槽に供給して滞留せしめ、しかるのち、活性汚
泥スラリーと粒状活性炭を分級して、該活性汚泥スラリ
ーをＵＦもしくはＲＯ膜によって固液分離し、分離され
た活性汚泥を前記活性汚泥処理槽にリサイクルすること
を特徴とする有機性廃水の処理方法である。[Means for Solving the Problems] The present invention provides activated sludge treatment of organic wastewater, and then supplies the activated sludge slurry flowing out from the nuclear process to an aeration stirring tank in the coexistence of granular activated carbon and makes it stagnate. Afterwards, the activated sludge slurry and granular activated carbon are classified, the activated sludge slurry is subjected to solid-liquid separation using a UF or RO membrane, and the separated activated sludge is recycled to the activated sludge treatment tank. This is the processing method.
次に本発明を図面を参照しながら、ざらに詳しく説明す
る。第１図は本発明の一実施態様のフローシートである
。Next, the present invention will be briefly described in detail with reference to the drawings. FIG. 1 is a flow sheet of one embodiment of the present invention.
し尿なとの有機性汚水１は、活性汚泥曝気槽２（活性汚
泥処理槽ともいう）において生物処理されてＢＯＤなど
が除去される。 次いで活性汚泥曝気槽２から流出する
活性汚泥スラリー３は、粒状活性炭（粉末活性炭は使用
しない）が流動しつつある曝気攪拌槽４に流入し、活性
汚泥スラリー中の難生物分解性の溶解性ＣＯＤ、色度成
分が粒状活性炭に吸着除去される。Organic sewage 1 including human waste is subjected to biological treatment in an activated sludge aeration tank 2 (also referred to as an activated sludge treatment tank) to remove BOD and the like. Next, the activated sludge slurry 3 flowing out from the activated sludge aeration tank 2 flows into the aeration stirring tank 4 in which granular activated carbon (powdered activated carbon is not used) is flowing, and the soluble COD, which is difficult to biodegradable, in the activated sludge slurry is removed. , the chromaticity components are adsorbed and removed by the granular activated carbon.
従来の粉末活性炭添加活性汚泥法では、有機性廃水が直
接、粉末活性炭が懸濁した活性汚泥スラリーと接触して
生物分解および吸着によって浄化されるのに対し、本発
明はあらかじめ活性汚泥処理して易生物分解性の汚濁成
分を除去したのち、粒状活性炭と活性汚泥スラリーを接
触させながら曝気処理することが重要であり、この点も
粉末活性炭添加活性汚泥法と本発明との大きな相違点で
ある。In the conventional activated sludge method with powdered activated carbon added, organic wastewater is directly contacted with activated sludge slurry in which powdered activated carbon is suspended and purified through biodegradation and adsorption, whereas the present invention uses activated sludge treatment in advance. After removing easily biodegradable pollutants, it is important to carry out aeration treatment while bringing the granular activated carbon into contact with the activated sludge slurry, and this point is also a major difference between the activated sludge method with powdered activated carbon and the present invention. .
しかして、粒状活性炭と活性汚泥との混合スラリー５は
、傾斜スクリーン６に供給され、粒状活性炭がスクリー
ン６上に残り活性汚泥がスクリーン下８に分級され、粒
状活性炭７は、曝気攪拌槽４にリサイクルされる。Thus, the mixed slurry 5 of granular activated carbon and activated sludge is supplied to the inclined screen 6, the granular activated carbon remains on the screen 6 and the activated sludge is classified under the screen 8, and the granular activated carbon 7 is transferred to the aeration stirring tank 4. Recycled.
一方、活性汚泥スラリー８は、ＵＦ膜もしくはＲＯ膜に
よる膜分離工程９に導入されて固液分離され、清澄な透
過処理水１０と濃縮汚泥１１となる。On the other hand, the activated sludge slurry 8 is introduced into a membrane separation step 9 using a UF membrane or an RO membrane and subjected to solid-liquid separation, resulting in clear permeated water 10 and concentrated sludge 11.
濃縮汚泥１１は活性汚泥処理槽２に返送され一部余剰汚
泥１２として汚泥脱水工程１３に送られる。The concentrated sludge 11 is returned to the activated sludge treatment tank 2, and a portion thereof is sent to the sludge dewatering step 13 as surplus sludge 12.
本発明において使用する粒状活性炭の粒径は、活性汚泥
との分級が容易になるように０．２履以上のものを使用
するのが適している。また粒状活性炭の粒径の上限は２
〜３ＩｒＩＩ１１が適しており、それ以上の粒径のもの
は曝気攪拌槽４での流動が困難になり沈積しやすくなる
ので、さけたほうがよい。The particle size of the granular activated carbon used in the present invention is preferably 0.2 mm or more so that it can be easily classified from activated sludge. Also, the upper limit of the particle size of granular activated carbon is 2
~3IrII11 is suitable, and particles with a larger particle size are difficult to flow in the aeration stirring tank 4 and tend to settle, so it is better to avoid them.
なお、図示例ではスクリーンによる分級を示したが、粒
状活性炭と活性汚泥の沈降速度の相違を利用して、沈降
法によって分級を行なってもよい。Although the illustrated example shows classification using a screen, classification may also be performed by a sedimentation method, taking advantage of the difference in sedimentation speed between granular activated carbon and activated sludge.
しかして、膜分離工程９においては活性汚泥ＳＳが完全
に捕捉分離されると同時にＵＦ膜の場合はコロイド状お
よび溶解性ＣＯＤ、色度成分の一部も膜に捕捉されて除
去され、活性汚泥処理槽２にリサイクルされる。Therefore, in the membrane separation step 9, the activated sludge SS is completely captured and separated, and at the same time, in the case of the UF membrane, colloidal and soluble COD and a part of the chromaticity components are also captured and removed by the membrane, and the activated sludge SS is completely captured and separated. It is recycled to the treatment tank 2.
またＲＯ膜を使用すると色度はほぼ完全に捕捉され、Ｃ
ＯＤ成分も８０％以上が膜に捕捉される。Also, when using an RO membrane, chromaticity is almost completely captured, and C
More than 80% of the OD components are also captured by the membrane.
ＲＯ膜としてはα 、Ｎａ イオンなとの脱塩率の高
い膜よりＮａα排除率８０％以下のルーズＲＯ膜が好ま
しい。こうして活性汚泥処理槽２にリサイクルされた難
生物分解性のＣＯＤ、色度成分は、次いで粒状活性炭の
曝気攪拌槽４に流入してゆき粒状活性炭に吸着される。As the RO membrane, a loose RO membrane with a Naα rejection rate of 80% or less is preferable to a membrane with a high salt removal rate for α and Na ions. The non-biodegradable COD and chromatic components thus recycled to the activated sludge treatment tank 2 then flow into the granular activated carbon aeration stirring tank 4 and are adsorbed by the granular activated carbon.
粒状活性炭に吸着されたＣＯＤ、色度成分は、系内に無
限大の時間維持されるので徐々に生物分解を受けて粒状
活性炭は生物再生される。Since the COD and chromaticity components adsorbed on the granular activated carbon are maintained in the system for an infinite time, they are gradually biodegraded and the granular activated carbon is bioregenerated.
［実施例］
第１図に示したプロセスにより、し尿を無希釈で処理し
た。生物処理工程２としては生物学的硝化脱窒素話性汚
泥法を採用した。[Example] Human waste was treated without dilution by the process shown in FIG. As biological treatment step 2, biological nitrification and denitrification talking sludge method was adopted.
すなわち、第１脱窒素槽、硝化槽、第２脱窒素槽に後続
して粒状活性炭曝気槽（第１図の４）を設けた。That is, a granular activated carbon aeration tank (4 in FIG. 1) was provided following the first denitrification tank, nitrification tank, and second denitrification tank.
生物処理工程の運転条件としては、
ＭＬＳＳ １５０００ｆｆｉｆｆ／、ｅ、滞留日数１
０日として、粒状活性炭曝気槽４の滞、留日数は１．５
日とし、粒状活性炭（粒径０．４〜０．６Ｍの球状を使
用）の懸濁濃度は曝気攪拌槽４の容積■とすると０．２
Ｖ％とした。The operating conditions for the biological treatment process are: MLSS 15000ffiff/, e, retention days 1
Assuming 0 days, the number of retention days in the granular activated carbon aeration tank 4 is 1.5.
The suspension concentration of granular activated carbon (spherical particles with a particle size of 0.4 to 0.6M is used) is 0.2 when the volume of the aeration stirring tank 4 is
It was set as V%.
粒状活性炭と活性汚泥スラリーとの分級には目開き０．
３８の６０’傾斜ウエツジスクリーン（自動目づまり洗
浄機つき〉を採用した。活性炭が分級除去された活性汚
泥スラリーは分画分子量３００００のチューブラ型のＬ
ＪＦ膜によって濾過分離し、濃縮スラリーは第１脱窒素
槽にリサイクルした。For classification of granular activated carbon and activated sludge slurry, mesh opening is 0.
A 60' inclined wedge screen (equipped with an automatic clogging cleaning machine) was adopted.The activated sludge slurry from which activated carbon has been classified and removed is a tubular type L with a molecular weight cut off of 30,000.
It was filtered and separated using a JF membrane, and the concentrated slurry was recycled to the first denitrification tank.
次表に運転経過時間と、ＵＦ膜透過処理水の水質を示す
。The following table shows the elapsed operating time and the quality of the UF membrane permeated water.
［発明の効果］
■ 活性炭を使い捨てする必要がないので、粉末活性炭
添加活性汚泥法よりも大幅にランニングコストが安くな
る。[Effects of the invention] ■ Since there is no need to dispose of activated carbon, running costs are significantly lower than the activated sludge method using powdered activated carbon.
■ 有機性廃水をあらかじめ活性汚泥処理して、易生物
分解性の物質を除去したのち、活性汚泥スラリーの共存
下で粒状活性炭と接触させるようにしたので活性炭への
吸着負荷量が低くなり、生物再生効果が高まる。■ Organic wastewater is treated with activated sludge in advance to remove easily biodegradable substances, and then brought into contact with granular activated carbon in the coexistence of activated sludge slurry, reducing the adsorption load on the activated carbon and reducing the amount of biodegradable substances. The regeneration effect is enhanced.
■ ＵＦ膜もしくはＲＯ膜で分離された難生物分解性の
ＣＯＯ，色度成分は再び粒状活性炭の曝気攪拌槽にりｔ
−イクルされて、吸着除去され、一部は生物分解を受け
る結果ＬＩＦ膜分離工程に流入する溶解性高分子量物質
の濃度が少なくなり、ＵＦ膜又はＲＯ膜の７ラツクスを
高く維持できる。■ The non-biodegradable COO and chromaticity components separated by the UF membrane or RO membrane are returned to the granular activated carbon aeration stirring tank.
- The concentration of soluble high molecular weight substances flowing into the LIF membrane separation process is reduced as a result of being absorbed and removed by adsorption, and some of them undergo biodegradation, and the 7 lux of the UF membrane or RO membrane can be maintained at a high level.
第１図は本発明の一実ｍ態様のフローシートである。
１・・・・・・有機性廃水（し尿など）、２・・・・・
・活性汚泥曝気槽（活性汚泥処理槽）、３・・・・・・
活性汚泥スラリー、４・・・・・・曝気攪拌槽、５・・
・・・・粒状活性炭と活性汚泥との混合スラリー、６・
・・・・・スクリーン、７・・・・・・粒状活性炭、８
・・・・・・活性汚泥スラリー、９・・・・・・膜分離
工程、１０・・・・・・透過処理水、１１・・・・・・
濃縮汚泥、１２・・・・・・余剰汚泥、１３・・・・・
・汚泥脱水工程。FIG. 1 is a flow sheet of one embodiment of the present invention. 1...Organic wastewater (human waste, etc.), 2...
・Activated sludge aeration tank (activated sludge treatment tank), 3...
Activated sludge slurry, 4...Aeration stirring tank, 5...
...Mixed slurry of granular activated carbon and activated sludge, 6.
... Screen, 7 ... Granular activated carbon, 8
...Activated sludge slurry, 9 ... Membrane separation process, 10 ... Permeation treated water, 11 ...
Thickened sludge, 12... Surplus sludge, 13...
・Sludge dewatering process.
Claims (1)
出する活性汚泥スラリーを粒状活性炭の共存下で曝気攪
拌槽に供給して滞留せしめ、しかるのち、活性汚泥スラ
リーと粒状活性炭を分級して、該活性汚泥スラリーをＵ
ＦもしくはＲＯ膜によって固液分離し、分離された活性
汚泥を前記活性汚泥処理槽にリサイクルすることを特徴
とする有機性廃水の処理方法。 ２、前記粒状活性炭の粒径が０．２ｍｍ〜３．００ｍｍ
である特許請求の範囲第１項記載の有機性廃水の処理方
法。 ３、前記粒状活性炭と活性汚泥スラリーとの分級手段が
スクリーン分離である特許請求の範囲第１項記載の有機
性廃水の処理方法。[Claims] 1. After organic wastewater is treated with activated sludge, the activated sludge slurry flowing out from the process is supplied to an aeration stirring tank in the coexistence of granular activated carbon and retained therein, and then the activated sludge slurry and Granular activated carbon is classified and the activated sludge slurry is
A method for treating organic wastewater, which comprises performing solid-liquid separation using an F or RO membrane, and recycling the separated activated sludge to the activated sludge treatment tank. 2. The particle size of the granular activated carbon is 0.2 mm to 3.00 mm.
A method for treating organic wastewater according to claim 1. 3. The method for treating organic wastewater according to claim 1, wherein the means for classifying the granular activated carbon and the activated sludge slurry is screen separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61160619A JPS6316096A (en) | 1986-07-08 | 1986-07-08 | Treatment of organic waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61160619A JPS6316096A (en) | 1986-07-08 | 1986-07-08 | Treatment of organic waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6316096A true JPS6316096A (en) | 1988-01-23 |
| JPH0469000B2 JPH0469000B2 (en) | 1992-11-04 |
Family
ID=15718848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61160619A Granted JPS6316096A (en) | 1986-07-08 | 1986-07-08 | Treatment of organic waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316096A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2234928A1 (en) * | 2007-12-19 | 2010-10-06 | Saudi Arabian Oil Company | Suspended media granular activated carbon membrane biological reactor system and process |
| JP2011189288A (en) * | 2010-03-15 | 2011-09-29 | Toshiba Corp | Phosphorus recovery device |
| US8440074B2 (en) | 2009-07-08 | 2013-05-14 | Saudi Arabian Oil Company | Wastewater treatment system including irradiation of primary solids |
| US8551341B2 (en) | 2009-06-15 | 2013-10-08 | Saudi Arabian Oil Company | Suspended media membrane biological reactor system including suspension system and multiple biological reactor zones |
| US8557111B2 (en) | 2009-07-08 | 2013-10-15 | Saudi Arabian Oil Company | Low concentration wastewater treatment system |
| CN104496011A (en) * | 2014-11-25 | 2015-04-08 | 东华大学 | Preparation method of rare earth-active carbon biologically catalyzed and oxidized sludge |
-
1986
- 1986-07-08 JP JP61160619A patent/JPS6316096A/en active Granted
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011507682A (en) * | 2007-12-19 | 2011-03-10 | サウジ アラビアン オイル カンパニー | Suspended solvent granular activated carbon membrane bioreactor system and process |
| US7972512B2 (en) | 2007-12-19 | 2011-07-05 | Saudi Arabian Oil Company | Suspended media granular activated carbon membrane biological reactor system and process |
| EP2234928A1 (en) * | 2007-12-19 | 2010-10-06 | Saudi Arabian Oil Company | Suspended media granular activated carbon membrane biological reactor system and process |
| EP2234928A4 (en) * | 2007-12-19 | 2013-09-25 | Saudi Arabian Oil Co | Suspended media granular activated carbon membrane biological reactor system and process |
| US8551341B2 (en) | 2009-06-15 | 2013-10-08 | Saudi Arabian Oil Company | Suspended media membrane biological reactor system including suspension system and multiple biological reactor zones |
| US9290399B2 (en) | 2009-07-08 | 2016-03-22 | Saudi Arabian Oil Company | Wastewater treatment process including irradiation of primary solids |
| US8440074B2 (en) | 2009-07-08 | 2013-05-14 | Saudi Arabian Oil Company | Wastewater treatment system including irradiation of primary solids |
| US8557111B2 (en) | 2009-07-08 | 2013-10-15 | Saudi Arabian Oil Company | Low concentration wastewater treatment system |
| US8721889B2 (en) | 2009-07-08 | 2014-05-13 | Saudi Arabian Oil Company | Wastewater treatment process including irradiation of primary solids |
| US9340441B2 (en) | 2009-07-08 | 2016-05-17 | Saudi Arabian Oil Company | Wastewater treatment system including irradiation of primary solids |
| US9073764B2 (en) | 2009-07-08 | 2015-07-07 | Saudi Arabian Oil Company | Low concentration wastewater treatment system and process |
| JP2011189288A (en) * | 2010-03-15 | 2011-09-29 | Toshiba Corp | Phosphorus recovery device |
| CN104496011A (en) * | 2014-11-25 | 2015-04-08 | 东华大学 | Preparation method of rare earth-active carbon biologically catalyzed and oxidized sludge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0469000B2 (en) | 1992-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2008115310A (en) | METHOD AND INSTALLATION FOR CLEANING WATER | |
| JPS6316096A (en) | Treatment of organic waste water | |
| EP1375439A1 (en) | Liquid treatment method and apparatus | |
| JPH09248572A (en) | Membrane filter and method thereof | |
| JP3794736B2 (en) | Treatment method of wastewater containing high concentration phosphorus and ammonia nitrogen | |
| JPH10137780A (en) | Method of reducing weight of organic sludge | |
| JP4467897B2 (en) | Phosphorus-containing organic sewage treatment equipment | |
| JP2002316192A (en) | Method and apparatus for treating organic foul water | |
| JPS62286591A (en) | Treatment of organic waste water | |
| JPH0729115B2 (en) | Treatment method for human waste | |
| JP2939156B2 (en) | Sewage treatment equipment | |
| JPS61185400A (en) | Apparatus for treating excretion sewage | |
| JP3449855B2 (en) | Biological phosphorus removal method and apparatus for organic wastewater | |
| JPH06170398A (en) | Treatment of sludge containing blast furnace water slag in activated sludge treatment | |
| JPH0649197B2 (en) | Organic wastewater treatment method | |
| JP2912960B2 (en) | Pretreatment of sewage | |
| JP3231179B2 (en) | Sewage treatment method | |
| JP3270155B2 (en) | Sewage treatment method and treatment device | |
| JP2003117551A (en) | Method and device for treating dioxins-containing waste water | |
| JP3327979B2 (en) | Septic tank sludge treatment method and equipment | |
| RU1773878C (en) | Method of purifying underground water of iron | |
| JP3731796B2 (en) | Method and apparatus for treating water containing organic matter | |
| RU1835389C (en) | Technique of water purification | |
| JPS596984A (en) | Treatment of waste water with activated sludge | |
| JPH0729117B2 (en) | Treatment method for human waste |