JPH0523670A - Pretreatment of night soil - Google Patents
Pretreatment of night soilInfo
- Publication number
- JPH0523670A JPH0523670A JP3180078A JP18007891A JPH0523670A JP H0523670 A JPH0523670 A JP H0523670A JP 3180078 A JP3180078 A JP 3180078A JP 18007891 A JP18007891 A JP 18007891A JP H0523670 A JPH0523670 A JP H0523670A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- human
- night soil
- human waste
- pretreatment
- 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
- 239000002689 soil Substances 0.000 title abstract description 6
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims description 21
- 239000010800 human waste Substances 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 210000002700 urine Anatomy 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 abstract description 17
- 239000010802 sludge Substances 0.000 description 9
- 239000000706 filtrate Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、系内に限外濾過膜を用
いた濾過工程を有するし尿処理方法において、濾過工程
の前にし尿を処理するし尿の前処理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating human waste having a filtration step using an ultrafiltration membrane in a system, and a method for treating human urine before the filtration step.
【０００２】[0002]
【従来の技術】従来のし尿処理方法は、例えば図４に示
すように複数の工程を有している。図２において、受入
槽１ではし尿を一旦貯留して次工程のし渣除去装置２に
定量供給する。し渣除去装置２では受入槽１から供給さ
れるし尿からし渣を除去し、除去したし渣は乾燥焼却設
備３に送り、し尿は中継槽４を経て繊維分除去装置５に
供給する。繊維分除去装置５ではし尿中の繊維分を除去
し、除去した繊維分は乾燥焼却設備３に送り、し尿は貯
留槽６を経て反応槽７に供給する。反応槽７ではし尿を
生物反応によって脱窒処理し、処理水は限外濾過膜装置
８に供給する。限外濾過膜装置８では処理水を限外濾過
膜によって濾過し、濾液は高度処理設備９に供給し、濃
縮汚泥は返送汚泥として反応槽７に返送するとともに、
余剰汚泥として脱水機１０に供給する。脱水機１０では
余剰汚泥を脱水し、脱水ケーキは乾燥焼却設備３に供給
し、脱離水は反応槽７に供給する。高度処理設備９で
は、濾液を活性炭およびオゾンによって異臭味や微量有
機物質を除去する。2. Description of the Related Art A conventional method for treating human waste has a plurality of steps, for example, as shown in FIG. In FIG. 2, human waste is temporarily stored in the receiving tank 1 and is quantitatively supplied to the human waste removal device 2 in the next step. The screen residue removing device 2 removes screen residue from the human waste supplied from the receiving tank 1, sends the removed screen residue to the dry incineration facility 3, and supplies the human waste through the relay tank 4 to the fiber content removing device 5. The fiber content removing device 5 removes the fiber content from the night urine, the removed fiber content is sent to the dry incineration facility 3, and the night soil is supplied to the reaction tank 7 through the storage tank 6. In the reaction tank 7, human waste is denitrified by a biological reaction, and the treated water is supplied to the ultrafiltration membrane device 8. In the ultrafiltration membrane device 8, the treated water is filtered by the ultrafiltration membrane, the filtrate is supplied to the advanced treatment equipment 9, and the concentrated sludge is returned to the reaction tank 7 as return sludge,
It is supplied to the dehydrator 10 as excess sludge. The dehydrator 10 dehydrates the excess sludge, supplies the dehydrated cake to the dry incineration facility 3, and supplies the desorbed water to the reaction tank 7. In the advanced treatment equipment 9, the offensive odor and trace organic substances are removed from the filtrate by activated carbon and ozone.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記した従来
の構成においては、限外濾過膜装置における目詰まりを
抑制するために、前工程としてし渣除去装置と繊維分除
去装置を設け、し尿中のし渣と繊維分を別途に除去して
おり、中継槽を含めて設備が大型化・複雑化する問題が
あった。However, in the above-mentioned conventional configuration, in order to suppress clogging in the ultrafiltration membrane device, a screen residue removing device and a fiber content removing device are provided as a pre-process, and Since the screen residue and the fiber content were removed separately, there was a problem that the equipment including the relay tank became large and complicated.
【０００４】本発明は上記課題を解決するもので、設備
の簡略化を図ることができるし尿の前処理方法を提供す
ることを目的とする。The present invention solves the above problems, and an object of the present invention is to provide a method for pretreatment of urine which can simplify the equipment.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明のし尿の前処理方法は、限外濾過工程を含む
処理系でし尿を浄化するし尿処理方法において、限外濾
過工程に至までの前工程として、処理槽内に浸漬された
濾過ユニットの濾過材を通してし尿を濾過し、し尿中の
し渣および繊維分を除去する構成としたものである。In order to solve the above problems, the method for pretreatment of human sewage according to the present invention is a method for treating human sewage by a treatment system including an ultrafiltration step. As a preparatory step up to the present, it is configured such that the human waste is filtered through a filter material of the filtration unit immersed in the treatment tank to remove the residue and the fiber content in the human waste.
【０００６】また、濾過ユニットを振動させて濾材面に
付着するケーキ槽を剥離除去する構成としたものであ
る。Further, the filter unit is vibrated to separate and remove the cake tank adhering to the surface of the filter medium.
【０００７】[0007]
【作用】上記構成により、限外濾過工程における限外濾
過膜の目詰まりの原因となる繊維分を前工程の濾過ユニ
ットの濾材によって除去し、しかもし渣を同一装置によ
って同時に除去するので設備の簡略化が図られる。With the above structure, the fiber component that causes the clogging of the ultrafiltration membrane in the ultrafiltration step is removed by the filter material of the filtration unit in the previous step, and the residue is removed by the same device at the same time. Simplification is achieved.
【０００８】[0008]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図１〜図３において、し尿は受入槽２１に供給
して一旦貯留した後に、濾過装置２２に定量供給する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 to 3, human waste is supplied to the receiving tank 21 and once stored therein, and then quantitatively supplied to the filtering device 22.
【０００９】この濾過装置２２はし尿を貯留する処理槽
２３と処理槽２３に浸漬した濾過ユニット２４を有し、
濾過ユニット２４は濾材２５として４０〜８０メッシュ
の金網を用いている。金網のメッシュは粗過ぎると繊維
分を除去することができず、細か過ぎると後の生物反応
処理工程において支障がでる。また、濾過ユニット２４
は駆動軸２６を介して振動発生機２７に連結しており、
濾過ユニット２４の内部に一端を連通して濾液管２８を
設けている。The filtration device 22 has a treatment tank 23 for storing human waste and a filtration unit 24 immersed in the treatment tank 23.
The filter unit 24 uses a wire mesh of 40 to 80 mesh as the filter material 25. If the mesh of the wire mesh is too coarse, the fiber component cannot be removed, and if it is too fine, it interferes with the subsequent biological reaction treatment step. In addition, the filtration unit 24
Is connected to a vibration generator 27 via a drive shaft 26,
A filtrate pipe 28 is provided with one end communicating with the inside of the filtration unit 24.
【００１０】そして、濾過装置２２においては、振動発
生機２７により駆動軸２６を介して濾過ユニット２４を
振動させながら処理槽２３の内部に貯留したし尿を濾過
ユニット２４の濾材２５を通して濾過し、濾液を濾液管
２８を通して貯留槽２９に供給し、濾材２５によって除
去したし渣および繊維分を濃縮汚泥とともに脱水機３０
に供給する。In the filtration device 22, the vibration generator 27 vibrates the filtration unit 24 via the drive shaft 26 to filter the human waste stored in the treatment tank 23 through the filter medium 25 of the filtration unit 24 to obtain a filtrate. Is supplied to a storage tank 29 through a filtrate pipe 28, and the residues and fibers removed by the filter medium 25 are put together with concentrated sludge in a dehydrator 30.
Supply to.
【００１１】そして、反応槽３１は硝化槽および脱窒槽
や曝気槽等で構成され、貯留槽２９から供給する濾液中
の有機物を生物反応により分解し、窒素を除去する。ま
た、反応槽３１で処理した処理水を限外濾過膜装置３２
に供給し、限外濾過膜を通して処理水を固液分離する。
さらに、限外濾過膜を透過した濾液を高度処理設備３３
に供給し、活性炭およびオゾンによって異臭味や微量有
機物質を除去する。The reaction tank 31 is composed of a nitrification tank, a denitrification tank, an aeration tank, etc., and decomposes organic substances in the filtrate supplied from the storage tank 29 by a biological reaction to remove nitrogen. Further, the treated water treated in the reaction tank 31 is treated with the ultrafiltration membrane device 32.
And the treated water is subjected to solid-liquid separation through an ultrafiltration membrane.
Furthermore, the filtrate that has passed through the ultrafiltration membrane is treated with advanced treatment equipment 33.
To remove off-flavors and trace organic substances by activated carbon and ozone.
【００１２】そして、限外濾過膜装置３２の濃縮汚泥を
反応槽３１に返送するとともに、余剰汚泥を脱水機３０
に供給する。脱水機３０においては、濾過装置２２から
供給する汚泥と限外濾過膜装置３２から供給する汚泥を
脱水し、脱水ケーキを乾燥焼却設備３４に供給するとと
もに、脱離水を反応槽３１に供給する。また、乾燥焼却
設備３４においては脱水ケーキを焼却もしくは溶融処理
する。Then, the concentrated sludge of the ultrafiltration membrane device 32 is returned to the reaction tank 31, and the excess sludge is removed by the dehydrator 30.
Supply to. In the dehydrator 30, the sludge supplied from the filtration device 22 and the sludge supplied from the ultrafiltration membrane device 32 are dehydrated, the dehydrated cake is supplied to the dry incineration facility 34, and the desorbed water is supplied to the reaction tank 31. In the dry incineration facility 34, the dehydrated cake is incinerated or melted.
【００１３】したがって、本実施例によれば、限外濾過
膜装置３２における限外濾過膜の目詰まりの原因となる
繊維分を、前工程の濾過装置２２においてし渣とともに
同時に除去するので、従来のように、し渣除去装置と繊
維分除去装置を別途に設けてし渣と繊維分を別々に除去
する構成に較べて設備の簡略化を図ることができる。Therefore, according to the present embodiment, the fiber component causing the clogging of the ultrafiltration membrane in the ultrafiltration membrane device 32 is simultaneously removed together with the residue in the filtration device 22 in the previous step. As described above, the equipment can be simplified as compared with the configuration in which the residue removal device and the fiber content removal device are separately provided to remove the residue and the fiber content separately.
【００１４】[0014]
【発明の効果】以上述べたように、限外濾過工程の前工
程としてし尿中の繊維分をし渣と一緒に除去することに
より、限外濾過工程における限外濾過膜の目詰まりを防
止するとともに、設備の簡略化を図ることができる。Industrial Applicability As described above, the clogging of the ultrafiltration membrane in the ultrafiltration step is prevented by removing the fiber content in the human urine together with the residue as a step prior to the ultrafiltration step. At the same time, the equipment can be simplified.
【図１】本発明の一実施例を示すし尿の前処理方法の流
れを示すブロック図である。FIG. 1 is a block diagram showing a flow of a pretreatment method for human urine according to an embodiment of the present invention.
【図２】同実施例における濾過装置の全体断面図であ
る。FIG. 2 is an overall cross-sectional view of a filtering device according to the same embodiment.
【図３】同実施例における濾過ユニットの全体断面図で
ある。FIG. 3 is an overall sectional view of a filtration unit according to the same embodiment.
【図４】従来のし尿処理方法の流れを示すブロック図で
ある。FIG. 4 is a block diagram showing a flow of a conventional human waste treatment method.
２２ 濾過装置 ２４ 濾過ユニット ２５ 濾材 ３１ 反応槽 ３２ 限外濾過膜装置 22 Filtration device 24 Filtration unit 25 filter media 31 Reaction tank 32 ultrafiltration membrane device
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０２Ｆ 9/00 Ａ 6647−4Ｄ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location C02F 9/00 A 6647-4D
Claims (2)
するし尿処理方法において、限外濾過工程に至までの前
工程として、処理槽内に浸漬された濾過ユニットの濾過
材を通してし尿を濾過し、し尿中のし渣および繊維分を
除去することを特徴とするし尿の前処理方法。1. A method for treating human sewage for purifying human urine by a treatment system including an ultrafiltration step, wherein the human urine is passed through a filter material of a filtration unit immersed in a treatment tank as a pre-step up to the ultrafiltration step. A pretreatment method for human waste, which comprises filtering to remove human waste and fiber components in human waste.
するケーキ槽を剥離除去することを特徴とする請求項１
記載のし尿の前処理方法。2. The cake tank adhering to the surface of the filter medium is peeled off by vibrating the filtration unit.
The method for pretreatment of human waste as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3180078A JPH0523670A (en) | 1991-07-22 | 1991-07-22 | Pretreatment of night soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3180078A JPH0523670A (en) | 1991-07-22 | 1991-07-22 | Pretreatment of night soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0523670A true JPH0523670A (en) | 1993-02-02 |
Family
ID=16077075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3180078A Pending JPH0523670A (en) | 1991-07-22 | 1991-07-22 | Pretreatment of night soil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2684280A1 (en) | 2011-03-09 | 2014-01-15 | Stridsberg Innovation Ab | Cooled magnet motor |
-
1991
- 1991-07-22 JP JP3180078A patent/JPH0523670A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2684280A1 (en) | 2011-03-09 | 2014-01-15 | Stridsberg Innovation Ab | Cooled magnet motor |
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