JPS63258690A - Treatment of organic sewage - Google Patents
Treatment of organic sewageInfo
- Publication number
- JPS63258690A JPS63258690A JP62093691A JP9369187A JPS63258690A JP S63258690 A JPS63258690 A JP S63258690A JP 62093691 A JP62093691 A JP 62093691A JP 9369187 A JP9369187 A JP 9369187A JP S63258690 A JPS63258690 A JP S63258690A
- Authority
- JP
- Japan
- Prior art keywords
- equipment
- treated
- treatment
- water
- subsequently
- 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
- 238000011282 treatment Methods 0.000 title claims abstract description 40
- 239000010865 sewage Substances 0.000 title abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 229910001424 calcium ion Inorganic materials 0.000 claims abstract description 7
- 238000000909 electrodialysis Methods 0.000 claims description 11
- 239000010802 sludge Substances 0.000 claims description 10
- 239000002351 wastewater Substances 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- 239000011575 calcium Substances 0.000 abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 238000001914 filtration Methods 0.000 abstract description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000004062 sedimentation Methods 0.000 abstract description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract description 4
- 229910052791 calcium Inorganic materials 0.000 abstract description 4
- 239000001110 calcium chloride Substances 0.000 abstract description 4
- 229910001628 calcium chloride Inorganic materials 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract description 4
- 235000017550 sodium carbonate Nutrition 0.000 abstract description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 3
- 235000011148 calcium chloride Nutrition 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005868 electrolysis reaction Methods 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- 230000003750 conditioning effect Effects 0.000 abstract description 2
- 238000010907 mechanical stirring Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract description 2
- 239000006228 supernatant Substances 0.000 abstract description 2
- 238000011033 desalting Methods 0.000 abstract 1
- 238000005189 flocculation Methods 0.000 abstract 1
- 230000016615 flocculation Effects 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000005345 coagulation Methods 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 238000009287 sand filtration Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000003206 sterilizing agent Substances 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 101100459438 Caenorhabditis elegans nac-1 gene Proteins 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 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
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000008717 functional decline Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、一般廃棄物最終処分場の浸出汚水あるいは一
般産業廃水などのカルシウムイオンおよび塩素イオンを
含有した有機性汚水の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 method for treating organic sewage containing calcium ions and chloride ions, such as leachate sewage from a final disposal site for general waste or general industrial wastewater.
従来の技術
現在、一般廃棄物処理の主流は、焼却処理であり、最終
処分としては埋立処分が行なわれている。BACKGROUND ART Currently, the mainstream of general waste treatment is incineration, and the final disposal method is landfill.
この埋立地から浸出する汚水は、水質汚濁防止のため浄
化処理が義務付けられている。Sewage that leaks from this landfill must be purified to prevent water pollution.
従来から、上記の埋立地の浸出汚水の処理は、一般都市
下水などの処理とほぼ同一の工程で行なわれている。す
なわち、原水は調整槽を経て接触酸化槽あるいは回転円
板槽などの生物処理設備で生物処理され、次いで凝集沈
澱処理設備で凝集剤が添加されて汚泥が沈降し、固液分
離された後、処理水は砂濾過および活性炭処理して放流
され、汚泥は汚泥処理設備へ送られて処理される。Conventionally, the treatment of leachate sewage from the above-mentioned landfill sites has been carried out in almost the same process as the treatment of general city sewage and the like. That is, the raw water passes through a conditioning tank and is subjected to biological treatment in biological treatment equipment such as a contact oxidation tank or a rotating disk tank, and then a flocculant is added to the coagulation sedimentation treatment equipment to settle the sludge, and after solid-liquid separation, The treated water is sand filtered and treated with activated carbon before being discharged, and the sludge is sent to a sludge treatment facility for treatment.
発明が解決しようとする問題点
上記のごとく一般廃棄物の最終処分として埋立処分され
ているが、近年その埋立処分されるものの内容が変化し
、そのため埋立地からの浸出汚水の水質特性が変わり、
それにともなって汚水処理において新たな対応がせまら
れている。Problems to be Solved by the Invention As mentioned above, general waste is disposed of in landfills as a final disposal method, but in recent years the contents of the landfill have changed, and as a result, the water quality characteristics of leached sewage from landfills have changed.
In line with this, new measures are needed in sewage treatment.
その一つとして、最近焼却炉排ガス中に含まれる塩化水
素（ＨＣＩ）の量が増加し、そのＨＣＩ除去のため生石
灰（Ｃａｂ）を用いた乾式のＨＣＩ除去装置が広く使用
されており、埋立処分される焼却灰中に反応生成物であ
る塩化カルシウム（ＣａＣ１２）が多量に含まれ、それ
にともなって雨水などにＣａＣｌ２が溶出して、埋立地
からの浸出汚水中のカルシウムイオン（Ｃａ＋＋）およ
び塩素イオン（Ｃ，ｌ−）の濃度が高くなってきた（
Ｃａ ＋ ＋ ：〜８０００ｐＰ■。One example of this is the recent increase in the amount of hydrogen chloride (HCI) contained in incinerator exhaust gas, and dry HCI removal equipment using quicklime (Cab) has been widely used to remove HCI, leading to landfill disposal. A large amount of calcium chloride (CaC12), which is a reaction product, is contained in the incinerated ash, and as a result, CaCl2 is eluted into rainwater, etc., and calcium ions (Ca++) and chloride ions are contained in the wastewater leached from the landfill. The concentration of (C, l-) has increased (
Ca + +: ~8000 pP■.
Ｃｌ−： 〜１６０００ｐｐｍ）。そのためＣａ”＋が
汚水中の炭酸根あるいは硫酸根と反応して不溶性の塩と
なって、配管やポンプのスケーリングを起こし、あるい
は生物処理において回転円板の表面にスケールとして付
着して生物処理機能障害を生じ、さらにＣ１−も放流水
中に多量の塩化物として含まれることになって塩害を惹
起する、などの多くの問題が生じている。しかしながら
、従来これらのＣａ”。Cl-: ~16000 ppm). Therefore, Ca''+ reacts with carbonate or sulfate groups in wastewater and becomes insoluble salts, causing scaling of piping and pumps, or adhering as scale to the surface of rotating disks in biological treatment, causing biological treatment to fail. However, in the past, these Ca''
Ｃ１−を積極的に除去することは行なわれていなかった
・
本発明は、上記の問題点を解決するもので、埋立地浸出
汚水のようにＣａ”＋およびＣ１−を高濃度に含む有機
性汚水中のＣａ”、Ｃ１−を、経済的にかつ安定に除去
することができる有機性汚水の処理方法を提供すること
を目的とするものである。Active removal of C1- has not been carried out. The present invention solves the above problems, and aims to remove organic waste containing a high concentration of Ca"+ and C1-, such as wastewater leached from a landfill. The object of the present invention is to provide a method for treating organic wastewater that can economically and stably remove Ca'' and C1- from wastewater.
問題点を解決するための手段
上記の問題点を解決するため本発明の有機性汚水の処理
方法は、カルシウムイオンと塩素イオンを含有する有機
性汚水の処理において、カルシウムイオンを水不溶性塩
として除去した後、生物処理し、汚泥を分離、濾過し、
次いで電気透析により脱塩処理することを特徴とするも
のである。Means for Solving the Problems In order to solve the above problems, the organic wastewater treatment method of the present invention removes calcium ions as water-insoluble salts in the treatment of organic wastewater containing calcium ions and chloride ions. After that, biological treatment is performed, the sludge is separated and filtered,
It is characterized in that it is then subjected to desalination treatment by electrodialysis.
作用
上記構成により、Ｃａ”＋および０１″を多量に含有す
る有機性汚水に炭酸ナトリウムその他Ｃａ”と反応して
水不溶性塩を生成する水溶性の炭酸塩、硫酸塩、燐酸塩
などを添加して、Ｃａ”＋を水不溶性の塩として沈降除
去した後、生物処理し、次いで汚泥を分離して清澄濾過
後、電気透析してＣ１−を塩化物として除去することに
より、生物処理前にＣａ”＋が除去されてポンプ、配管
や生物処理における装置類へのスケーリングが防止され
て障害を起こすことがなく、また生物処理、汚泥分離、
濾過を行なって、Ｃａ”、ＢＯＤ、ＳＳ等が十分減少し
た状態で電気透析されるので、何等の支障なく処理され
、 Ｃａ”＋を１１００ｐｐ以下、ＣＦを４００ＰＰ園
以下として放流することができる。Effect With the above structure, water-soluble carbonates, sulfates, phosphates, etc. that react with sodium carbonate and other Ca" to produce water-insoluble salts are added to organic wastewater containing a large amount of Ca"+ and 01". After precipitating and removing Ca''+ as water-insoluble salts, biological treatment is performed, and then the sludge is separated and clarified through filtration, followed by electrodialysis to remove C1- as chloride. "+" is removed to prevent scaling to pumps, piping, and equipment in biological treatment so that it does not cause any damage, and also to prevent damage to biological treatment, sludge separation,
After filtration, electrodialysis is carried out in a state where Ca'', BOD, SS, etc. are sufficiently reduced, so that it can be treated without any problems and can be discharged with Ca''+ of 1100 pp or less and CF of 400 PP or less.
実施例
埋立地浸出汚水を第１図の工程図に従って処理する。ま
ず原水を調整槽１で空気遮断の状態で機械撹拌を行なっ
て均一化した後、カルシウム除去設備２へ送液して室温
で炭酸ナトリウム（Ｎａ２ＣＯ，）をＣａ”＋の当量以
上添加し、ＰＨ７〜１０で撹拌して反応させ、次にＣａ
Ｃｌ２とＮ ａ ａ ＣＯ３との反応で生成した炭酸カ
ルシウム（Ｃａ ＣＯ３）を沈澱させて固液分離する。EXAMPLE Landfill leachate sewage is treated according to the process diagram shown in FIG. First, the raw water is homogenized by mechanical stirring in the condition of air exclusion in the adjustment tank 1, and then sent to the calcium removal equipment 2, where sodium carbonate (Na2CO, ) is added in an amount equal to or more than the equivalent of Ca''+ at room temperature, and the pH is adjusted to 7. ~ 10 to react by stirring, then Ca
Calcium carbonate (Ca CO3) produced by the reaction between Cl2 and Na CO3 is precipitated and separated into solid and liquid.
なおこの場合ＣａＣＯ，粒子の沈降を促進するため塩化
第２鉄、硫酸ばん土などの無機凝集剤、高分子凝集剤等
を併用することが好ましい。また、Ｎａ、Ｇｏ、に代え
て他の水溶性の炭酸塩、硫酸塩、燐酸塩などを添加して
もよい。In this case, it is preferable to use an inorganic flocculant such as ferric chloride or sulfuric acid, a polymer flocculant, etc. in order to promote the sedimentation of CaCO and particles. Further, other water-soluble carbonates, sulfates, phosphates, etc. may be added in place of Na and Go.
前記カルシウム除去設備２を経た処理水は、生物処理設
備３へ送られ生物処理されて、ＢＯＤ成分が分解される
。生物処理方式としては従来公知の活性汚泥法、接触酸
化法、回転板法などの種々の方式を採用しうる。生物処
理後は凝集沈澱設備４で汚泥を凝集沈澱分離し、上澄液
を砂濾過・活性炭処理設備５へ送液して濾過および活性
炭処理する０次に処理水を凝集清澄濾過設備６で、さら
に塩化第２鉄などの凝集剤を加えて凝集沈澱させた後、
アンスラサイト、珪砂等の粒径１ｍ以下の粒子からなる
濾材を用いて清澄濾過を行なってＣａｃｏ、、ｓｓなど
の微細な粒子も除去して、次工程の電気透析設備６へ送
液する。電気透析設備７において、ＣＦは塩化物ＮａＣ
１の濃厚溶液として分離され、処理水は放流される。上
記のＮａＣ１濃厚溶液は、例えば電解膜ｉＷ８へ供給さ
れ、電気分解して次亜塩素酸ナトリウム（Ｎ ａ Ｃｌ
○）を生成させ、これを前記の放流される処理水の滅菌
剤として用いる。なお前記ＮａＣｌ０に代えて水酸化ナ
トリウム（ＮａＯＨ）を生成させてもよい。The treated water that has passed through the calcium removal equipment 2 is sent to the biological treatment equipment 3 where it is biologically treated and the BOD components are decomposed. As the biological treatment method, various conventional methods such as the activated sludge method, the catalytic oxidation method, and the rotating plate method can be employed. After the biological treatment, the sludge is separated by coagulation and sedimentation in the coagulation and sedimentation equipment 4, and the supernatant liquid is sent to the sand filtration/activated carbon treatment equipment 5 to be filtered and treated with activated carbon.Then, the treated water is sent to the coagulation and clarifying filtration equipment 6, Furthermore, after adding a flocculant such as ferric chloride to coagulate and precipitate,
Clarification filtration is performed using a filter medium made of particles with a particle size of 1 m or less, such as anthracite and silica sand, to remove fine particles such as Caco, ss, etc., and the liquid is sent to the electrodialysis equipment 6 for the next step. In the electrodialysis equipment 7, CF is chloride NaC
1 as a concentrated solution, and the treated water is discharged. The above NaCl concentrated solution is supplied to the electrolytic membrane iW8, for example, and electrolyzed to form sodium hypochlorite (N a Cl
○) is produced and used as a sterilizing agent for the above-mentioned discharged treated water. Note that sodium hydroxide (NaOH) may be generated instead of NaCl0.
上記の一連の処理により、原水のＣａ” ： ８０００
ＰＰ■、ＣＦ： １６０００ｐｐｍを、放流水でＣａ”
： １１００ｐｐ以下、Ｃ１−： ４００ｐｐｍ以下
に低下さることができる。Through the above series of treatments, the raw water Ca”: 8000
PP■, CF: 16,000ppm in effluent water
: 1100 ppm or less, C1-: Can be reduced to 400 ppm or less.
そして、生物処理設備３における生物処理の前段階でＣ
ａ”＋が１１００ｐｐ以下に減少されているので、ポン
プ、配管や生物処理装置などへＣａ ＣＯ３がスケール
になって付着することが防止されて処理機能障害を発生
することがなく、また電気透析設備７へ送られる処理水
が、Ｃａ←、ＢＯＤ、ＳＳ成分などが除去されているの
で、電気透析設備７において、スケーリング、詰まり１
機能低下などの障害を起こすことがない、また分離した
ＮａＣ１１ｌｌ縮水は、電解設備８により電気分解処理
してＮａＣｌ０を生成させて放流水の滅菌剤として有効
に利用することができる。Then, in the pre-stage of biological treatment in biological treatment facility 3, C.
Since a”+ has been reduced to 1100pp or less, CaCO3 is prevented from adhering to pumps, piping, biological treatment equipment, etc. as scale, and treatment function failures do not occur, and electrodialysis equipment Since Ca←, BOD, SS components, etc. have been removed from the treated water sent to the electrodialysis equipment 7, scaling, clogging, etc.
The separated NaCl11ll condensed water, which does not cause problems such as functional decline, can be electrolyzed in the electrolysis equipment 8 to generate NaCl0, which can be effectively used as a sterilizing agent for effluent water.
発明の効果
本発明により、埋立地からの浸出汚水、一般産業廃水の
うちのＣａ”＋およびＣＦを多量に含有する有機性汚水
を、アルカリ金属炭酸塩などのＣａ”＋と反応して水不
溶性カルシウム塩を生成しうる物質の添加によるＣａ”
の水不溶性塩としての沈澱除去、生物処理によるＢＯＤ
成分の分解。Effects of the Invention According to the present invention, leachate sewage from landfills and organic sewage containing large amounts of Ca''+ and CF from general industrial wastewater are made water-insoluble by reacting with Ca''+ such as alkali metal carbonates. Ca” by adding substances that can generate calcium salts
Precipitation removal as water-insoluble salts, BOD by biological treatment
Decomposition of components.
汚泥分離、濾過によるＳＳ成分の除去および電気透析に
よるＣＦの除去の各処理を行なうことにより、Ｃａ”＋
を１００ｐＰＩＩｌ以下、ＣＦを４００ｐｐ＋ｍ以下と
して塩害を発生することなく河川へ放流させることがで
き、かつ上記処理において、生物処理前にＣａ＋＋が除
去されてポンプ、配管や生物処理におけるスケーリング
が防止されて機能障害を起こすことがなく、またさらに
生物処理および清澄濾過してＣａ”、ＢＯＤ、ＳＳ成分
等が十分減少した状態で電気透析されるので装置へのス
ケーリング、詰まり、機能低下などの障害を発生するこ
となく、極めて効率よく処理することができる。By performing sludge separation, removal of SS components by filtration, and removal of CF by electrodialysis, Ca"+
100pPIIl or less and CF less than 400pp+m, which can be discharged into rivers without causing salt damage, and in the above treatment, Ca++ is removed before biological treatment to prevent scaling in pumps, piping, and biological treatment. Since electrodialysis is performed in a state where Ca'', BOD, SS components, etc. are sufficiently reduced through biological treatment and clarifying filtration, problems such as scaling, clogging, and functional deterioration of the equipment do not occur. It can be processed extremely efficiently.
第１図は本発明の一実施例の工程図である。
１・・・調整槽、２・・・カルシウム除去設備、３・・
・生物処理設備、４・・・凝集沈澱設備、訃・・砂濾過
・活性炭設備、６・・・凝集清澄濾過設備、７・・・電
気透析設備、８・・・電解設備。FIG. 1 is a process diagram of an embodiment of the present invention. 1...Adjustment tank, 2...Calcium removal equipment, 3...
- Biological treatment equipment, 4... Coagulation sedimentation equipment, Grain... Sand filtration/activated carbon equipment, 6... Coagulation clarifying filtration equipment, 7... Electrodialysis equipment, 8... Electrolysis equipment.
Claims (1)
水の処理において、カルシウムイオンを水不溶性塩とし
て除去した後、生物処理し、汚泥を分離、濾過し、次い
で電気透析により脱塩処理することを特徴とする有機性
汚水の処理方法。1. In the treatment of organic wastewater containing calcium ions and chloride ions, the calcium ions are removed as water-insoluble salts, followed by biological treatment, the sludge is separated and filtered, and then desalinated by electrodialysis. A method for treating organic wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62093691A JPH0741243B2 (en) | 1987-04-15 | 1987-04-15 | Organic wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62093691A JPH0741243B2 (en) | 1987-04-15 | 1987-04-15 | Organic wastewater treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63258690A true JPS63258690A (en) | 1988-10-26 |
| JPH0741243B2 JPH0741243B2 (en) | 1995-05-10 |
Family
ID=14089429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62093691A Expired - Lifetime JPH0741243B2 (en) | 1987-04-15 | 1987-04-15 | Organic wastewater treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0741243B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012130891A (en) * | 2010-12-24 | 2012-07-12 | Swing Corp | Method and apparatus for treating organic waste water |
| JP2012217943A (en) * | 2011-04-11 | 2012-11-12 | Takasago Thermal Eng Co Ltd | Method for desalting and system for desalting |
| CN102910785A (en) * | 2012-11-01 | 2013-02-06 | 广西大学 | Treatment method and device for high-concentration organic wastewater |
| WO2013099304A1 (en) * | 2011-12-28 | 2013-07-04 | 三菱重工メカトロシステムズ株式会社 | Wastewater treatment device |
| CN103288244A (en) * | 2013-06-26 | 2013-09-11 | 瓮福（集团）有限责任公司 | High-hardness water purification treatment recycling process |
| JP2014014738A (en) * | 2012-07-06 | 2014-01-30 | Swing Corp | Method and apparatus for treating organic wastewater |
| CN105967408A (en) * | 2016-07-14 | 2016-09-28 | 河南能源化工集团研究院有限公司 | Industrial wastewater treatment process of copper-based hydrogenation catalyst |
| JP2017114705A (en) * | 2015-12-22 | 2017-06-29 | 学校法人福岡大学 | Method for producing sodium hypochlorite, and sodium hypochlorite production device |
-
1987
- 1987-04-15 JP JP62093691A patent/JPH0741243B2/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012130891A (en) * | 2010-12-24 | 2012-07-12 | Swing Corp | Method and apparatus for treating organic waste water |
| JP2012217943A (en) * | 2011-04-11 | 2012-11-12 | Takasago Thermal Eng Co Ltd | Method for desalting and system for desalting |
| WO2013099304A1 (en) * | 2011-12-28 | 2013-07-04 | 三菱重工メカトロシステムズ株式会社 | Wastewater treatment device |
| JP2013138977A (en) * | 2011-12-28 | 2013-07-18 | Mitsubishi Heavy Industries Mechatronics Systems Ltd | Waste water treatment device |
| CN103930380A (en) * | 2011-12-28 | 2014-07-16 | 三菱重工机电系统株式会社 | Wastewater treatment device |
| US9868656B2 (en) | 2011-12-28 | 2018-01-16 | Mitsubishi Heavy Industries Mechatronics Systems | Wastewater treatment device |
| JP2014014738A (en) * | 2012-07-06 | 2014-01-30 | Swing Corp | Method and apparatus for treating organic wastewater |
| CN102910785A (en) * | 2012-11-01 | 2013-02-06 | 广西大学 | Treatment method and device for high-concentration organic wastewater |
| CN103288244A (en) * | 2013-06-26 | 2013-09-11 | 瓮福（集团）有限责任公司 | High-hardness water purification treatment recycling process |
| JP2017114705A (en) * | 2015-12-22 | 2017-06-29 | 学校法人福岡大学 | Method for producing sodium hypochlorite, and sodium hypochlorite production device |
| CN105967408A (en) * | 2016-07-14 | 2016-09-28 | 河南能源化工集团研究院有限公司 | Industrial wastewater treatment process of copper-based hydrogenation catalyst |
| CN105967408B (en) * | 2016-07-14 | 2019-07-26 | 河南能源化工集团研究总院有限公司 | One kind plus hydrogen copper-based catalysts technique for treating industrial wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0741243B2 (en) | 1995-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3883445B2 (en) | Sewage treatment equipment | |
| US5266210A (en) | Process for removing heavy metals from water | |
| JP3909793B2 (en) | Method and apparatus for treating organic wastewater containing high-concentration salts | |
| US9242878B2 (en) | Heavy metal removal from waste streams | |
| CN105502782A (en) | Technology for recovering water resources and salt from coking wastewater in coal chemical industry | |
| WO2007052618A1 (en) | Method for removing metals from waste water and apparatus for removing metals from waste water | |
| JP4880656B2 (en) | Water treatment apparatus and water treatment method | |
| JP2004141799A (en) | Silica-containing waste water treatment method | |
| US3635817A (en) | Waste water treatment process | |
| JPS63258690A (en) | Treatment of organic sewage | |
| JP3918657B2 (en) | Method and apparatus for purifying contaminated soil | |
| JP3377091B2 (en) | Method and apparatus for treating leachate at landfill site | |
| JP2006218354A (en) | Method for treating fluorine-containing waste water | |
| JPH0824872A (en) | Treatment of organic contaminated water containing phosphoer | |
| KR0149156B1 (en) | Apparatus and method for the treatment of grind waste water | |
| JPH0366036B2 (en) | ||
| JP3734338B2 (en) | Ion exchange resin recycling waste liquid treatment method | |
| CN114516689A (en) | Calcium carbide method polyvinyl chloride mercury-containing wastewater treatment and recycling method and application device thereof | |
| JP3496773B2 (en) | Advanced treatment method and apparatus for organic wastewater | |
| Wang et al. | Total waste recycle system for water purification plant using alum as primary coagulant | |
| JPS63258692A (en) | Treatment of organic sewage | |
| JPH0433518B2 (en) | ||
| JP2004074009A (en) | Stabilization treatment method of incineration ash waste | |
| JP3392298B2 (en) | Wastewater treatment method | |
| JP3003746B2 (en) | Leachate membrane separation method |