JPH02238210A - Disposal method for sand separated from human waste and septic-tank sludge - Google Patents
Disposal method for sand separated from human waste and septic-tank sludgeInfo
- Publication number
- JPH02238210A JPH02238210A JP5504289A JP5504289A JPH02238210A JP H02238210 A JPH02238210 A JP H02238210A JP 5504289 A JP5504289 A JP 5504289A JP 5504289 A JP5504289 A JP 5504289A JP H02238210 A JPH02238210 A JP H02238210A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- sand
- human waste
- tank
- biological treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 47
- 239000004576 sand Substances 0.000 title claims abstract description 41
- 239000010800 human waste Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 abstract description 6
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 abstract description 6
- 230000003311 flocculating effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明はし尿や、浄化槽汚泥を生物処理装置で処理す
る際に、その前段階でし尿や、浄化槽汚泥中から分離、
除去した砂を処分する方法に関する。[Detailed Description of the Invention] <Industrial Application Field> This invention is a method for separating human waste and septic tank sludge from human waste and septic tank sludge in a preliminary step when treating the human waste and septic tank sludge with a biological treatment device.
Concerning how to dispose of removed sand.
〈従来の技術〉
除渣し尿や、浄化槽汚泥は投入槽に投入し、該投入槽の
底に設けた沈砂ピットで自然沈降により砂を分離したの
ち夾雑物除去装置、例えばロータリースクリーンで紙，
布、プラスチックフイルムなどの夾雑物を除いて貯溜槽
に貯え、貯溜槽から生物処理装置に供給して生物処理す
る。尚、し尿や、浄化槽汚泥に混入している砂は投入槽
の沈砂ピットだけでは充分に分離、除去することかでき
ないときは，夾雑物除去装置と貯溜槽の間にサイクロン
や遠心分ｒａＩａを設けたり、貯溜槽にサイクロンを途
中に備えた循還管を付設し、沈砂ピットで分離、除去で
きなかった砂をこれ等で更に分離、除去することもある
。<Conventional technology> The filtered human waste and septic tank sludge are put into a charging tank, and after the sand is separated by natural sedimentation in a sand settling pit provided at the bottom of the charging tank, paper, paper, etc.
Contaminants such as cloth and plastic films are removed and stored in a storage tank, and the material is supplied from the storage tank to a biological treatment device for biological treatment. In addition, if human waste or sand mixed in the septic tank sludge cannot be sufficiently separated and removed by the sand settling pit in the input tank, a cyclone or centrifugal RAIa should be installed between the foreign matter removal device and the storage tank. Alternatively, a circulation pipe with a cyclone in the middle may be attached to the storage tank to further separate and remove sand that could not be separated and removed in the sand settling pit.
いずれにしても、沈砂ピット等により生物処理装置に供
給する前の前段階でし尿や、浄化槽汚泥中から分離、除
去する砂は、例えば４５ｋＪ２／日のし尿処理場では１
週間に０．５ ｒｎ’に達し、従来は手作業で洗浄し、
水を切ってから処理灰として場外に搬出している。In any case, the sand that is separated and removed from human waste and septic tank sludge in the pre-stage before being supplied to the biological treatment equipment through a sand settling pit, etc.
reaches 0.5 rn' per week, traditionally cleaned by hand,
After draining the water, it is transported off-site as treated ash.
一方、生物処理装置では処理に伴い余剰汚泥、引抜き消
化汚泥が発生するので、これは砂とは別個に焼却処分し
、灰として場外に搬出する。On the other hand, in biological treatment equipment, excess sludge and extracted sludge are generated during the treatment, so this is incinerated separately from the sand and transported outside the site as ash.
く発明が解決しようとする課題〉
前段階で分離、除去した砂にはし尿や、浄化槽汚泥が付
着しているので、これを手作業で洗浄したり、焼却処分
、うめたて処分するために取扱うことは衛生面や、維持
管理の面から好ましくない。Problems to be Solved by the Invention Since the sand separated and removed in the previous step has human waste and septic tank sludge attached to it, it is difficult to manually clean it, incinerate it, or bury it for disposal. Handling it is not recommended from the standpoint of hygiene and maintenance.
又、埋立て処分した場合は寄生虫や、大腸菌等が死減し
ないため、し尿処理場の構内であるとはいえ、好ましく
ない。Furthermore, if the waste is disposed of in a landfill, parasites, E. coli, etc. will not be killed, so it is not preferable even though it is located within the premises of a human waste treatment plant.
〈課題を解決するための手段〉
そこて木発明は生物処理すべきし尿や、浄化槽汚泥から
分離した砂を、該し尿や、浄化槽汚泥を生物処理又は化
学処理することにより発生する汚泥と混合して焼却処分
することを特徴とする．〈実 施 例〉
図示の実施例において、１は除渣し尿や、浄化槽汚泥が
投入される投入槽で、その底には投入物が流れる方向に
沈砂ピット２、仮受けビット３が設けてあり、投入物中
に混入する砂は自然沈降で沈砂ピット２に堆積する．沈
砂ピット２に堆積した砂は真空ポンプやブロワーなとの
吸引装置４で砂タンク５に吸出す。<Means for Solving the Problem> Therefore, the present invention mixes the human waste to be biologically treated and the sand separated from the septic tank sludge with the sludge generated by biologically or chemically treating the human waste and the septic tank sludge. It is characterized by being incinerated. <Example of implementation> In the illustrated example, reference numeral 1 denotes a charging tank into which removed human waste and septic tank sludge are charged, and a settling pit 2 and a temporary receiving bit 3 are provided at the bottom in the direction in which the input materials flow. The sand mixed in the input material is deposited in sand pit 2 by natural settling. The sand accumulated in the sand settling pit 2 is sucked out into a sand tank 5 by a suction device 4 such as a vacuum pump or a blower.
投入物は仮受けビット３からポンプロータリースクリー
ンなどの夾雑物除去装置６に供給され、こ＼で混入して
いる紙、布、プラスチックフイルムなどを除去されて貯
溜槽７に流下し、貯溜槽からポンプで生物処理装置８に
供給され、生物処理を受ける。The input material is supplied from the temporary receiving bit 3 to a contaminant removal device 6 such as a pump rotary screen, where paper, cloth, plastic film, etc. mixed in are removed and flowed into the storage tank 7, where it is removed from the storage tank. It is supplied to the biological treatment device 8 by a pump and undergoes biological treatment.
前述したように投入槽の沈砂ピット２でし尿や、浄化槽
汚泥に混入している砂を充分に分離除去できないときは
、必要に応じ夾雑物除去装置５と貯溜槽６の間にサイク
ロンや遠心脱水機を設けたり、或は貯溜槽６に循環ボン
ブによる循環管を付設け、循環管の途中にサイクロンを
設け、沈砂ビット２で分離、除去できなかった砂をこれ
らで更に分離、除去してもよい。As mentioned above, if it is not possible to sufficiently separate and remove human waste or sand mixed in the septic tank sludge in the sand settling pit 2 of the input tank, a cyclone or centrifugal dehydrator is installed between the foreign matter removal device 5 and the storage tank 6 as necessary. Alternatively, by installing a circulation pipe using a circulation bomb in the storage tank 6 and installing a cyclone in the middle of the circulation pipe, the sand that cannot be separated and removed by the sand settling bit 2 can be further separated and removed. good.
こうして、沈砂ピット２などにより生物処理装置８に供
給する前の段階でし尿や，浄化槽汚泥から分離除去した
液状又は水切り状態の砂は、管路１ロを経て生物処理装
置８が運転に伴って排出する余剰汚泥、引抜き消化汚泥
や生物処理後の凝集処理装置（図示せず）のような化学
処理によって発生する凝集汚泥とともに汚泥槽１０に供
給して混合する。このため汚泥槽１０にはボンブによる
循還管路１１を付設し、槽内に供給された砂と汚泥を循
環管路１１を経て循環させる間に充分に混合できるよう
にして置くことが好ましい。In this way, the liquid or drained sand that has been separated and removed from human waste and septic tank sludge before being supplied to the biological treatment device 8 through the sand settling pit 2 etc. is transferred to the biological treatment device 8 through the pipe 1ro as the biological treatment device 8 operates. The sludge is supplied to the sludge tank 10 and mixed together with the excess sludge to be discharged, the extracted and digested sludge, and the flocculated sludge generated by chemical treatment such as a flocculation treatment device (not shown) after biological treatment. For this reason, it is preferable that the sludge tank 10 is provided with a circulation line 11 using a bomb so that the sand and sludge supplied into the tank can be sufficiently mixed while being circulated through the circulation line 11.
汚泥槽１０で混合した砂と汚泥の混合物はポンプで凝集
槽ｌ２に供給し、槽内に添加される高分子凝集剤ｌ３、
及び硫酸バンド１４と混合してフロック化し、そのフロ
ックをベルトプレス型脱水機や、遠心分ｌｉｌＩｆ＆な
どの脱水装置１５に通して脱水し、砂を含む脱水ケーキ
はコンベア１６で焼却炉１７に搬送して焼却処分し、そ
の灰はし尿処理場の外に搬出して処分する。The mixture of sand and sludge mixed in the sludge tank 10 is supplied to the flocculating tank l2 by a pump, and a polymer flocculant l3 is added to the tank,
and sulfuric acid band 14 to form flocs, the flocs are dehydrated by passing through a dehydrator 15 such as a belt press type dehydrator or a centrifugal lilIf&, and the dehydrated cake containing sand is conveyed to an incinerator 17 by a conveyor 16. The ash will be incinerated and the ash will be transported outside the human waste treatment plant and disposed of.
又、脱水装置１５から排出する液分は排水槽１８に流下
させ、こ＼から再び生物処理装置８に供給して処理を行
う。In addition, the liquid discharged from the dehydrator 15 is allowed to flow down into a drainage tank 18, from which it is again supplied to the biological treatment device 8 for treatment.
〈発明の効果》
砂は非常に水切り性が高いのに対し、生物処理装置から
排出する余剰汚泥、引抜き消化汚泥及び凝集処理装置か
ら排出される凝集汚泥は難脱水性で、焼却しにくい。本
発明はし尿や、浄化槽汚泥を生物処理装置で処理する前
の段階て分離除去した砂を、該生物処理装置又は凝集処
理装置から排出される汚泥と混合し、汚泥を焼却し易く
改質するため容易に焼却処分できる。<Effects of the Invention> While sand has very high drainage properties, excess sludge discharged from biological treatment equipment, drawn-digested sludge, and flocculated sludge discharged from coagulation treatment equipment are difficult to dewater and are difficult to incinerate. The present invention mixes the sand that has been separated and removed from human waste and septic tank sludge before it is treated with a biological treatment device with the sludge discharged from the biological treatment device or flocculation treatment device, thereby reforming the sludge to make it easier to incinerate. Therefore, it can be easily disposed of by incineration.
そして、砂は密閉形の配管やコンベアで搬送できるため
悪臭を周囲に拡散したり、人の肌に触れる非衛生さが無
くなる。又、砂は焼却により完全殺菌される。Furthermore, since the sand can be transported using closed pipes or conveyors, there is no need for it to spread bad odors or come into contact with people's skin. Additionally, sand is completely sterilized by incineration.
こうして、砂はし尿処理場の構内で埋立て処分する必要
がなくなり、焼却して灰として衛生的に処分することが
できる。In this way, the sand does not need to be disposed of in a landfill within the premises of the human waste treatment plant, but can be incinerated and hygienically disposed of as ash.
図面は本発明の一実施例のフローシ一トで、図中、１は
投入槽，２は沈砂ピット、８は生物処理装置、９は砂と
、生物処理装鐙からの汚泥を混合する汚泥槽、１７は焼
却炉を示す。The drawing is a flowchart of one embodiment of the present invention, in which 1 is a charging tank, 2 is a sand pit, 8 is a biological treatment device, and 9 is a sludge tank for mixing sand and sludge from the biological treatment stirrup. , 17 indicates an incinerator.
Claims (1)
槽汚泥を生物処理又は化学処理することにより発生する
汚泥と混合して焼却処分することを特徴とするし尿や、
浄化槽汚泥から分離した砂の処分方法。Human waste, which is characterized in that the sand separated from human waste and septic tank sludge is mixed with sludge generated by biological or chemical treatment of human waste and septic tank sludge and then incinerated;
How to dispose of sand separated from septic tank sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5504289A JPH02238210A (en) | 1989-03-09 | 1989-03-09 | Disposal method for sand separated from human waste and septic-tank sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5504289A JPH02238210A (en) | 1989-03-09 | 1989-03-09 | Disposal method for sand separated from human waste and septic-tank sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02238210A true JPH02238210A (en) | 1990-09-20 |
Family
ID=12987610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5504289A Pending JPH02238210A (en) | 1989-03-09 | 1989-03-09 | Disposal method for sand separated from human waste and septic-tank sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02238210A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007229655A (en) * | 2006-03-02 | 2007-09-13 | Kuritaz Co Ltd | Night soil sludge dehydrating apparatus |
| JP2020151636A (en) * | 2019-03-19 | 2020-09-24 | メタウォーター株式会社 | Method for incinerating dewatered sludge |
-
1989
- 1989-03-09 JP JP5504289A patent/JPH02238210A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007229655A (en) * | 2006-03-02 | 2007-09-13 | Kuritaz Co Ltd | Night soil sludge dehydrating apparatus |
| JP2020151636A (en) * | 2019-03-19 | 2020-09-24 | メタウォーター株式会社 | Method for incinerating dewatered sludge |
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