JPH01224096A - Treatment of organic waste water - Google Patents
Treatment of organic waste waterInfo
- Publication number
- JPH01224096A JPH01224096A JP5137588A JP5137588A JPH01224096A JP H01224096 A JPH01224096 A JP H01224096A JP 5137588 A JP5137588 A JP 5137588A JP 5137588 A JP5137588 A JP 5137588A JP H01224096 A JPH01224096 A JP H01224096A
- Authority
- JP
- Japan
- Prior art keywords
- water
- tank
- iron ions
- anaerobic treatment
- treated
- 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 claims abstract description 39
- 239000010815 organic waste Substances 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 239000002351 wastewater Substances 0.000 claims abstract description 21
- 229910052742 iron Inorganic materials 0.000 claims abstract description 18
- -1 iron ions Chemical class 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 19
- 238000003672 processing method Methods 0.000 claims 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052717 sulfur Inorganic materials 0.000 abstract description 10
- 239000011593 sulfur Substances 0.000 abstract description 10
- 238000007664 blowing Methods 0.000 abstract description 4
- 238000005273 aeration Methods 0.000 description 14
- 239000005416 organic matter Substances 0.000 description 6
- 230000000813 microbial effect Effects 0.000 description 5
- 229910021577 Iron(II) chloride Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 4
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は有機性廃水を嫌気性処理と生物濾過の組合せ
により処理する有機性廃水の処理方法、特に最終処理水
の濁りを防止する処理方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention provides a method for treating organic wastewater by a combination of anaerobic treatment and biological filtration, particularly a treatment method for preventing turbidity of the final treated water. It is related to.
有機性廃水の処理方法として、流動床式またはスラッジ
ブランケット式等の嫌気性処理法が行われている。流動
床式嫌気性処理法は、嫌気性微生物膜を付着させた粒状
担体を反応槽内に充填し、この充填層を展開して流動床
を形成した状態で廃水と接触させ、嫌気性処理を行う方
法である。スラッジブランケット式嫌気処理法は上記流
動床の代りに嫌気性微生物のスラッジブランケットと原
水を接触させて嫌気性処理を行うものである。As a method for treating organic wastewater, anaerobic treatment methods such as a fluidized bed method or a sludge blanket method are used. In the fluidized bed anaerobic treatment method, a reaction tank is filled with granular carriers to which an anaerobic microbial membrane is attached, and this packed bed is expanded to form a fluidized bed that is brought into contact with wastewater to perform anaerobic treatment. This is the way to do it. The sludge blanket type anaerobic treatment method performs anaerobic treatment by bringing raw water into contact with a sludge blanket of anaerobic microorganisms instead of using the fluidized bed.
このような処理方法では、有機物を放流可能な程度に処
理できないので、後処理として好気性生物濾過を行う方
法が提案されている。好気性生物濾過法は、好気性微生
物膜を付着させた粒状濾材を濾過槽内に充填して波層を
形成し、この濾層に原水を好気状態で通水して有機物お
よび懸濁物を除去する方法である。Since such treatment methods cannot treat organic matter to the extent that it can be discharged, a method of performing aerobic biological filtration as a post-treatment has been proposed. In the aerobic biological filtration method, a granular filter medium with an aerobic microbial membrane attached is filled in a filter tank to form a wave layer, and raw water is passed through this filter layer in an aerobic state to remove organic matter and suspended matter. This is a method to remove.
ところが有機性廃水を嫌気性処理すると、廃水中に含ま
れる硫酸根、亜硫酸根、含硫タンパク等の分解、還元に
より還元イオウ（Ｈ３−または５２−）が生成する。こ
のため後段で生物濾過法による処理を行うと、上記還元
イオウは一部コロイド状のイオウに酸化され、処理水を
白濁させるという問題が生じる。このようなコロイド状
のイオウを除去するために、生物濾過器の入口に塩化鉄
（ｎ）を添加した場合は、硫化鉄の生成により処理水が
黒色に着色し、または黒色の濁りが析出し、先に述べた
白色の濁りと同様、生物濾過器では除去できない。However, when organic wastewater is treated anaerobically, reduced sulfur (H3- or 52-) is produced by decomposition and reduction of sulfate radicals, sulfite radicals, sulfur-containing proteins, etc. contained in the wastewater. For this reason, when the biological filtration method is used at a later stage, a portion of the reduced sulfur is oxidized to colloidal sulfur, causing the problem that the treated water becomes cloudy. If iron chloride (n) is added to the inlet of a biological filter to remove colloidal sulfur, the treated water will be colored black or a black turbidity will precipitate due to the production of iron sulfide. , Similar to the white turbidity mentioned above, it cannot be removed with a biological filter.
このような点を解決するために、有機性廃水を嫌気性処
理して得られる流出水中に残留する還元イオウを無害化
する方法として、減圧脱硫、空気酸化などが知られてい
る〔「水質汚濁研究ＪＶｏ１．１０゜Ｎα１１． ｐｐ
２４−２７（１９８７）］。しかしながら減減圧値は１
１□Ｓガスの処理が必要となり、空気酸化では大量の空
気が必要であるという問題点があった。In order to solve this problem, vacuum desulfurization, air oxidation, etc. are known as methods for detoxifying the reduced sulfur that remains in the effluent obtained by anaerobic treatment of organic wastewater. Research JVo1.10゜Nα11.pp
24-27 (1987)]. However, the decompression value is 1
1□S gas needs to be treated, and air oxidation has the problem of requiring a large amount of air.
この発明の目的は、上記問題点を解決するため、簡単な
装置と操作により、還元イオウを無害化し、最終処理水
の濁りを防止することができる有機性廃水の処理方法を
提案することである。The purpose of this invention is to propose a method for treating organic wastewater that can render reduced sulfur harmless and prevent turbidity of the final treated water using a simple device and operation in order to solve the above problems. .
この発明は、有機性廃水を嫌気性処理し、その流出水を
好気性生物濾過する方法において、嫌気性処理後の流出
水を鉄イオンの存在下に曝気したのち、好気性生物濾過
槽で処理することを特徴とする有機性廃水の処理方法で
ある。This invention is a method of anaerobically treating organic wastewater and aerobic biological filtration of the effluent, in which the effluent after anaerobic treatment is aerated in the presence of iron ions, and then treated in an aerobic biological filtration tank. This is a method for treating organic wastewater, which is characterized by:
本発明では好気性生物濾過槽の逆洗排水を、嫌気性処理
後の流出水とともに、鉄イオンの存在下に曝気するのが
好ましい。In the present invention, it is preferable to aerate the backwash wastewater from the aerobic biological filtration tank together with the effluent water after anaerobic treatment in the presence of iron ions.
以下、本発明を図面により説明する。第１回は本発明の
実施態様を示す系統図である。Hereinafter, the present invention will be explained with reference to the drawings. The first part is a system diagram showing an embodiment of the present invention.
本発明の有機性廃水の処理方法は、原水１をまず嫌気性
処理槽２において嫌気性処理する。嫌気性処理槽２は流
動床式嫌気性処理槽であり、嫌気性微生物膜を付着させ
た粒状担体を反応槽内に充填し、この充填層を展開して
流動床を形成した状態で原水と接触させ、嫌気性処理を
行うようになっている。粒状担体としては砂、活性炭、
アンスラサイト、プラスチック粒子など、任意のものが
使用できる。このような粒状担体に嫌気性微生物を付着
させるためには、担体粒子を充填した反応槽に原水を供
給して嫌気性処理を行うことにより、嫌気性微生物が担
体表面に付着して繁殖し、生物膜が形成される。流動床
を形成するためには、原水を槽底から供給して下向流で
流すことにより、充填層が展開して流動床が形成される
が、機械的手段によって粒子を流動化させてもよい。上
記のような流動床式の代りにスラッジブランケット式の
嫌気性処理槽でもよい。このような嫌気性処理により、
原水中の有機物は分解され、嫌気性処理水３が得られる
。In the organic wastewater treatment method of the present invention, raw water 1 is first subjected to anaerobic treatment in an anaerobic treatment tank 2 . The anaerobic treatment tank 2 is a fluidized bed type anaerobic treatment tank, in which a granular carrier to which an anaerobic microbial film is attached is filled in the reaction tank, and this packed bed is developed to form a fluidized bed, which is then mixed with raw water. They are brought into contact with each other and subjected to anaerobic treatment. Granular carriers include sand, activated carbon,
Any material can be used, such as anthracite, plastic particles, etc. In order to attach anaerobic microorganisms to such a granular carrier, raw water is supplied to a reaction tank filled with carrier particles and subjected to anaerobic treatment, so that the anaerobic microorganisms adhere to the carrier surface and multiply. A biofilm is formed. To form a fluidized bed, raw water is supplied from the bottom of the tank and allowed to flow downward, causing the packed bed to expand and form a fluidized bed. However, even if particles are fluidized by mechanical means, good. A sludge blanket type anaerobic treatment tank may be used instead of the fluidized bed type described above. Through such anaerobic treatment,
Organic matter in the raw water is decomposed and anaerobically treated water 3 is obtained.
次に嫌気性処理水３に鉄イオン４を加えて予備曝気槽５
に導入し、空気６を吹込んで予備曝気を行う。鉄イオン
は酸化触媒であり、２価の鉄イオンでも３価の鉄イオン
でもよい、、２価の鉄イオンの場合は曝気により酸化さ
れて３価の鉄イオンになる。これらの鉄イオンは塩化鉄
（ＩＩ）、塩化鉄（ｍ）、硫酸鉄（ＩＩ）、硫酸鉄（ｍ
）などの形で添加することができる。予備曝気槽５で曝
気を行うことにより、嫌気性処理液中の還元イオウが酸
化され、亜硫酸または硫酸塩として安定化する。曝気時
（ｉｉは０．５〜２時間程度でよい。Next, iron ions 4 are added to the anaerobic treated water 3 and the preliminary aeration tank 5 is heated.
, and perform preliminary aeration by blowing in air 6. Iron ions are oxidation catalysts, and may be divalent iron ions or trivalent iron ions. In the case of divalent iron ions, they are oxidized by aeration to become trivalent iron ions. These iron ions include iron(II) chloride, iron(m) chloride, iron(II) sulfate, and iron(m) sulfate.
) can be added in the form of By performing aeration in the preliminary aeration tank 5, reduced sulfur in the anaerobic treatment liquid is oxidized and stabilized as sulfite or sulfate. During aeration (ii may be about 0.5 to 2 hours).
次に予備曝気処理水７を生物濾過槽８に導入し、空気９
を吹込んで好気性に維持しながら好気性生物濾過を行う
。好気性生物濾過は、好気性微生物膜を付着させた粒状
濾材を濾過槽内に充填して種層を形成し、この波層に原
水を好気状態で通水して有機物および懸濁物を除去する
方法である。粒状濾材は嫌気性処理の粒状担体と同様の
ものが使用でき、微生物膜を付着させる方法も好気的に
行うほかは前記と同様である。生物濾過方法は予備曝気
処理水を上向流で通水する方法が一般に行われているが
、下向流でもよい。この場合波層は流動化させないで通
水することにより、懸濁物および有機物が除去される。Next, the preliminary aeration treated water 7 is introduced into the biological filtration tank 8, and the air 9
Aerobic biological filtration is performed while maintaining aerobic conditions by blowing in Aerobic biological filtration involves filling a filtration tank with granular filter media to which aerobic microbial membranes are attached to form a seed layer, and passing raw water through this wave layer in an aerobic state to remove organic matter and suspended matter. This is a method of removing it. The granular filter medium can be the same as the granular carrier for anaerobic treatment, and the method for attaching the microbial film is the same as described above, except that it is carried out aerobically. In the biological filtration method, the pre-aerated water is generally passed through in an upward flow, but a downward flow may also be used. In this case, suspended matter and organic matter are removed by passing water through the wave layer without fluidizing it.
濾過水は処理水１０として放流される。The filtered water is discharged as treated water 10.
生物濾過槽８は濾過の継続により、種層が目詰まりする
ので、定期的に上面流で波層を展開させて逆洗を行う。Since the biological filtration tank 8 becomes clogged with the seed layer due to continued filtration, backwashing is performed by periodically developing a wave layer using an upper surface flow.
このとき排出される逆洗排水１１の一部を予備曝気槽５
に導入して予備曝気を行うと。A part of the backwash wastewater 11 discharged at this time is transferred to the preliminary aeration tank 5.
If you introduce it to the room and perform preliminary aeration.
子細曝気の効率が良くなる。すなわち逆洗排水ｌｌ中に
は、好気性微生物が含まれており、これを嫌気性処理水
３とともに曝気すると、Ｈ５−１Ｓ２−等の還元イオウ
の酸化効率がよいため、触媒としての鉄量を低減できる
。The efficiency of fine aeration is improved. In other words, the backwash wastewater 11 contains aerobic microorganisms, and when these are aerated together with the anaerobic treated water 3, the oxidation efficiency of reduced sulfur such as H5-1S2- is high, so the amount of iron as a catalyst can be reduced. Can be reduced.
以下、本発明の実施例および比較例について説明する。 Examples and comparative examples of the present invention will be described below.
比較例１
コーンスターチ製造工程から排出される有機性廃水を嫌
気処理した処理水について、高次処理として生物濾過処
理を実施した。結果を表１に示す。Comparative Example 1 A biological filtration treatment was performed as a higher level treatment on treated water obtained by anaerobically treating organic wastewater discharged from a corn starch manufacturing process. The results are shown in Table 1.
生物濾過において、有機物の除去は良好であったが、処
理水に乳白色の微測が生成し、外観を著しく損ねた。In biological filtration, the removal of organic matter was good, but a milky white speck was formed in the treated water, which significantly impaired the appearance.
比較例２
凝集による除濁を意図して、生物濾過装置の人口に塩化
鉄ＣＩりを１０ｍｇ／Ｑ（Ｆｅとして）添加した。Comparative Example 2 In order to remove turbidity by coagulation, 10 mg/Q (as Fe) of iron chloride CI was added to the population of the biological filtration device.
Ｓ２−とＦｅ’＋の反応により黒色の濁りが生成し、こ
の濁りは生物濾過では完全に除去できなかった。A black turbidity was generated by the reaction between S2- and Fe'+, and this turbidity could not be completely removed by biological filtration.
極微細な黒色物質が処理水中に残留した。塩化鉄（ＩＩ
）を添加した効果は認められなかった。A very fine black substance remained in the treated water. Iron chloride(II)
) was not found to have any effect.
実施例１
生物濾過の前段に、予備曝気槽を設置しく滞留時間１時
間）、ここへ塩化鉄（ＩＩ）を１０ｍｇ／Ｑ（Ｆｅとし
て）添加した。その結果生物濾過水には、白濁、黒濁の
いずれも生じず、処理水の外観は大幅に改善され、透視
度は６〜１０度となった。Example 1 A preliminary aeration tank was installed before biological filtration (retention time: 1 hour), and 10 mg/Q (as Fe) of iron (II) chloride was added thereto. As a result, neither white nor black turbidity occurred in the biologically filtered water, and the appearance of the treated water was significantly improved, with a transparency of 6 to 10 degrees.
実施例２
塩化鉄（ＩＩ）の添加量を５ｍｇ／Ｑ（Ｆｅとして）と
したところ、生物濾過水の透視度は４〜５度に低下した
。生物濾過槽は１日に１回逆洗したが、この逆洗排水の
一部を前述の予備曝気槽へ返送したところ、Ｆｅ ５
ｍｇＩＱの添加量でも透視度８〜１０度の処理水が得ら
れた。Example 2 When the amount of iron (II) chloride added was set to 5 mg/Q (as Fe), the visibility of biological filtrate water decreased to 4 to 5 degrees. The biological filtration tank was backwashed once a day, but when a portion of this backwash wastewater was returned to the preliminary aeration tank mentioned above, Fe 5
Even with the addition amount of mgIQ, treated water with a transparency of 8 to 10 degrees was obtained.
比較例３
前述の予備曝気槽への塩化鉄（ＩＩ）の添加および逆洗
水の返送を中止したところ、生物濾過水に白濁が生じ、
外観は悪化し、透視度は２〜３度となった。Comparative Example 3 When the addition of iron (II) chloride to the preliminary aeration tank and the return of backwash water were discontinued, white turbidity occurred in the biologically filtered water.
The appearance deteriorated, and the visibility became 2 to 3 degrees.
本発明によれば、嫌気性処理後の流出水を鉄イオンの存
在下に曝気したのち、好気性生物濾過槽で処理するよう
にしたので、簡単な装置と操作により還元イオウを無害
化でき、最終処理水の濁りを防［ヒすることができる。According to the present invention, the effluent after anaerobic treatment is aerated in the presence of iron ions and then treated in an aerobic biological filtration tank, so reduced sulfur can be rendered harmless with simple equipment and operation. It is possible to prevent turbidity of the final treated water.
また好気性生物濾過槽の逆洗排水を、嫌気性処理後の流
出水とともに、鉄イオンの存在下に曝気することにより
、曝気処理の効率がよくなり、鉄塩の添加量を少なくす
ることができる。Furthermore, by aerating the backwash wastewater from the aerobic biological filtration tank together with the effluent after anaerobic treatment in the presence of iron ions, the efficiency of aeration treatment can be improved and the amount of iron salts added can be reduced. can.
第１図は本発明の実施態様を示す系統図である。 代理人 弁理士 柳 原 成 FIG. 1 is a system diagram showing an embodiment of the present invention. Agent: Patent attorney Sei Yanagi Hara
Claims (2)
生物濾過する方法において、嫌気性処理後の流出水を鉄
イオンの存在下に曝気したのち、好気性生物濾過槽で処
理することを特徴とする有機性廃水の処理方法。(1) In a method of anaerobically treating organic wastewater and aerobic biological filtration of the effluent, the effluent after anaerobic treatment is aerated in the presence of iron ions, and then treated in an aerobic biological filtration tank. A method for treating organic wastewater characterized by the following.
理後の流出水とともに、鉄イオンの存在下に曝気するこ
とを特徴とする請求項第１項記載の有機性廃水の処理方
法。(2) The organic wastewater according to claim 1, characterized in that a part of the backwash wastewater from the aerobic biological filter tank is aerated in the presence of iron ions together with the anaerobically treated runoff water. Processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63051375A JP2643243B2 (en) | 1988-03-04 | 1988-03-04 | Organic wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63051375A JP2643243B2 (en) | 1988-03-04 | 1988-03-04 | Organic wastewater treatment method |
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| Publication Number | Publication Date |
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| JPH01224096A true JPH01224096A (en) | 1989-09-07 |
| JP2643243B2 JP2643243B2 (en) | 1997-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP63051375A Expired - Lifetime JP2643243B2 (en) | 1988-03-04 | 1988-03-04 | Organic wastewater treatment method |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964021A (en) * | 2011-09-01 | 2013-03-13 | 中国石油化工股份有限公司 | Method for processing organic waste water |
| CN104609658A (en) * | 2015-01-14 | 2015-05-13 | 同济大学 | Method for processing reverse osmosis concentrated water by catalyzed internal electrolysis and modified biological aerated filter |
| CN105621758A (en) * | 2016-01-05 | 2016-06-01 | 同济大学 | Method for treating heavy metal wastewater by catalytic internal electrolysis coupling ferrite method |
| CN106587523A (en) * | 2016-12-30 | 2017-04-26 | 四川师范大学 | Method for treating production wastewater of total acetone, butanol and ethanol solvents |
| CN106587519A (en) * | 2016-12-30 | 2017-04-26 | 四川师范大学 | Treatment method of organic synthetic pharmacy wastewater |
| CN106587522A (en) * | 2016-12-30 | 2017-04-26 | 四川师范大学 | Treating method for acetone-butanol-ethanol-solvent-produced wastewater |
| CN106630445A (en) * | 2016-12-30 | 2017-05-10 | 四川师范大学 | Treatment method of acetone-butanol-ethanol total solvent production wastewater |
| CN106630462A (en) * | 2016-12-30 | 2017-05-10 | 四川师范大学 | Treatment method of ABE production wastewater |
| CN106630446A (en) * | 2016-12-30 | 2017-05-10 | 四川师范大学 | Treatment method of acetone-butanol-ethanol solvent (ABE) production wastewater |
| CN106630435A (en) * | 2016-12-30 | 2017-05-10 | 四川师范大学 | Propyl and butyl total solvent production wastewater treatment method |
| CN106673352A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Treatment method of wastewater produced from C-D total solvent production |
| CN106673326A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Method of treating wastewat4er from acetone-butanol total solvent production |
| CN106673353A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Method for treating wastewater produced in production of acetone, butanol and ethyl alcohol |
| CN106673343A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Treatment method of production wastewater of acetone-butanol-ethanol total solvent |
| CN106673342A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Treatment method of wastewater produced during acetone, butanol and ethanol solvent production |
| CN106673354A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Method for treating wastewater produced in production of acetone, butanol and ethyl alcohol |
| CN106698836A (en) * | 2016-12-30 | 2017-05-24 | 四川师范大学 | Treatment method of wastewater from production of acetone, butanol and ethanol |
| CN106698829A (en) * | 2016-12-30 | 2017-05-24 | 四川师范大学 | Acetone-butanol-ethanol total solvent production wastewater treatment method |
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| CN106746258A (en) * | 2016-12-30 | 2017-05-31 | 四川师范大学 | Propyl-butyl total solvent produces the processing method of waste water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57136996A (en) * | 1981-02-19 | 1982-08-24 | Kurita Water Ind Ltd | Treatment of waste water |
| JPS58183993A (en) * | 1982-04-23 | 1983-10-27 | Sumitomo Jukikai Envirotec Kk | Treatment of waste water containing sulfurous acid |
-
1988
- 1988-03-04 JP JP63051375A patent/JP2643243B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57136996A (en) * | 1981-02-19 | 1982-08-24 | Kurita Water Ind Ltd | Treatment of waste water |
| JPS58183993A (en) * | 1982-04-23 | 1983-10-27 | Sumitomo Jukikai Envirotec Kk | Treatment of waste water containing sulfurous acid |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964021A (en) * | 2011-09-01 | 2013-03-13 | 中国石油化工股份有限公司 | Method for processing organic waste water |
| CN104609658A (en) * | 2015-01-14 | 2015-05-13 | 同济大学 | Method for processing reverse osmosis concentrated water by catalyzed internal electrolysis and modified biological aerated filter |
| CN105621758A (en) * | 2016-01-05 | 2016-06-01 | 同济大学 | Method for treating heavy metal wastewater by catalytic internal electrolysis coupling ferrite method |
| CN106587523A (en) * | 2016-12-30 | 2017-04-26 | 四川师范大学 | Method for treating production wastewater of total acetone, butanol and ethanol solvents |
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| CN106587522A (en) * | 2016-12-30 | 2017-04-26 | 四川师范大学 | Treating method for acetone-butanol-ethanol-solvent-produced wastewater |
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| CN106630446A (en) * | 2016-12-30 | 2017-05-10 | 四川师范大学 | Treatment method of acetone-butanol-ethanol solvent (ABE) production wastewater |
| CN106630435A (en) * | 2016-12-30 | 2017-05-10 | 四川师范大学 | Propyl and butyl total solvent production wastewater treatment method |
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| CN106673326A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Method of treating wastewat4er from acetone-butanol total solvent production |
| CN106673353A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Method for treating wastewater produced in production of acetone, butanol and ethyl alcohol |
| CN106673343A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Treatment method of production wastewater of acetone-butanol-ethanol total solvent |
| CN106673342A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Treatment method of wastewater produced during acetone, butanol and ethanol solvent production |
| CN106673354A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Method for treating wastewater produced in production of acetone, butanol and ethyl alcohol |
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| CN106746258A (en) * | 2016-12-30 | 2017-05-31 | 四川师范大学 | Propyl-butyl total solvent produces the processing method of waste water |
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| JP2643243B2 (en) | 1997-08-20 |
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