JPS5889992A - Treatment for night soil - Google Patents
Treatment for night soilInfo
- Publication number
- JPS5889992A JPS5889992A JP56188768A JP18876881A JPS5889992A JP S5889992 A JPS5889992 A JP S5889992A JP 56188768 A JP56188768 A JP 56188768A JP 18876881 A JP18876881 A JP 18876881A JP S5889992 A JPS5889992 A JP S5889992A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- secondary treatment
- tank
- liquid
- 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.)
- Granted
Links
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】
この−193Fi住し尿の無11!I釈処瑞毫:おける
発泡を低減さセるし尿処1171法&: SSする0従
米の生し尿の処理7+法ね、前処理として生じ尿をドラ
ムスクリーン等を通過さセた後、好気性消化法、活性汚
泥法等により、10〜20倍希釈1行い処理している。[Detailed description of the invention] This -193Fi human waste no 11! 1171 method of treating raw human waste to reduce foaming in the tank &: 7+ method for treating raw human waste in SS, after passing the generated urine through a drum screen etc. as a pre-treatment, aerobic treatment is performed. One 10- to 20-fold dilution is performed using the digestion method, activated sludge method, etc.
ところで、近年の水資源の浪費防止、水質総量規制の寮
施力どから、し尿処理ブロセヌにおける希釈水の節約が
111gとカリ、近年では無希釈処理は必須技術と力っ
てきている。By the way, in recent years, due to the prevention of wasteful water resources and the implementation of dormitory regulations to regulate the total amount of water, the dilution water saved in human waste treatment Brosene is 111g, and in recent years, non-dilution treatment has become an essential technology.
しかし力から、希釈水を減少さゼると、脱色、固液分離
の困離性という問題の他4=、ばつ気槽ての発泡が著し
くカリ外観な損ねるという欠講がある。この欠講を解決
手段とし″′C経費のかかる消泡剤を使用しているのが
現状である。However, if the dilution water is reduced due to force, there are problems such as decolorization and difficulty in solid-liquid separation, as well as foaming in the aeration tank, which seriously impairs the appearance of the potash. Currently, the solution to this problem of absenteeism is to use expensive antifoaming agents.
この発明は、上紀欠虐を解決するに際し1発泡基質であ
るコロ1ド成分の除去ということに5!l@し、前処理
RWIで住し尿と2次処理汚泥とを混合攪拌し、コロイ
ド成分を除去して、発泡管低減さ(九し尿処理方法t*
供することを目的とする。This invention solves the problem of the upper age group by eliminating the 1st component of the foaming matrix. The human waste and secondary treatment sludge are mixed and stirred in the pre-treatment RWI, the colloid components are removed, and the foam tube is reduced (9 human waste treatment method t*
The purpose is to provide
以1、この発明の一実施例について図Noを参照して説
明する。Hereinafter, one embodiment of the present invention will be described with reference to Figure No.
この発明の一実施例の工程には、生し尿と2次処理汚泥
とを混合攪拌しコロイドの吸着を朽がわゼる混合攪拌槽
1と、この混合攪拌槽1かもの混合液の固液分離を朽い
、コロ1ド成分を沈殿させる分離槽2と、この分離槽2
の沈殿汚泥の濃縮を行う汚泥濃縮槽3と、上記分離槽2
の上層部の上澄液を処理する2次処理部4と、この2次
処理部4からの2次処理液の沈殿を行う沈殿槽5とが配
置さ1ている。The process of an embodiment of the present invention includes a mixing tank 1 for mixing and stirring raw human waste and secondary treatment sludge to improve adsorption of colloids, and a solid-liquid mixture of this mixing tank 1. Separation tank 2 that rots the separation and precipitates the coro 1 component, and this separation tank 2
a sludge thickening tank 3 for concentrating the settled sludge; and the separation tank 2.
A secondary treatment section 4 for treating the supernatant liquid of the upper layer, and a settling tank 5 for precipitating the secondary treatment liquid from the secondary treatment section 4 are arranged.
次1:この発明の動作(二ついて説明する。Next 1: Operation of this invention (I will explain it in two parts.
処理さするべ自し尿は後述する沈殿槽5から返送さrた
2次処理沈殿汚泥(引抜汚泥)と−緒に混合攪拌槽1に
導入さ1、混合攪拌ijて、発泡基質であるコロイド成
分を汚泥(二吸着さぜる。(コロ1ド成分吸着工程)
ここでコロイド成分を効果的ζ二吸着させるためにし尿
の混合攪拌槽1の滞留時間は30分〜、2時間相度とす
る0
そして、上記混合攪拌槽1の混合液は分離槽24:4人
さ1、一部分離さ1て、上層部と、コロイド成分を吸着
した汚泥等の沈殿物を含む1層部とに分−さnる(コロ
1ド成分沈殿工程)0この上層部と下層部の分析価1表
に示すと以)のようである。The raw human waste to be treated is introduced into a mixing agitation tank 1 together with secondary treatment settled sludge (drawn sludge) returned from a settling tank 5, which will be described later. The sludge is mixed with adsorption (colloid component adsorption step). In order to effectively adsorb the colloid components, the residence time of the human waste in the mixing stirring tank 1 is set to 30 minutes to 2 hours. 0 The mixed liquid in the mixing and stirring tank 1 is partially separated in a separation tank 24:4 and divided into an upper layer and a layer containing precipitates such as sludge that have adsorbed colloidal components. (Color 1 component precipitation step) The analytical values of the upper and lower layers are shown in Table 1 below.
ここで、分離槽2の固液分離効果をエリ効果的に行う丸
めには、メタン発酵が起こり、カス発生による攪拌かは
じ1らない範囲で力るぺ〈長い滞留時間が必要であり%
2〜5日程度がよい0筐九コロイド成分等の沈殿を効率
よく行うため(=、必要に応じて沈降助剤として汚泥焼
却灰を投入してもよい。Here, in order to effectively achieve the solid-liquid separation effect of the separation tank 2, methane fermentation occurs, and a long residence time is required, resulting in methane fermentation and agitation due to generation of scum.
In order to efficiently precipitate colloidal components, etc., it is recommended to take about 2 to 5 days (if necessary, sludge incineration ash may be added as a sedimentation aid).
さらに、分離槽2の上層部の2次処理流出儒に壁6を設
け、、スカムの流出や混合し尿の短絡流、各自上りによ
るSSの流出を防ぐ。Further, a wall 6 is provided in the upper part of the separation tank 2 at the secondary treatment outlet to prevent outflow of scum, short-circuit flow of mixed human waste, and outflow of SS due to upflow.
次に分離槽2の1層m&:沈殿し九コロイド成分を吸着
し九沈殿汚泥は汚泥濃藉槽3に送らnる〇この汚#!I
IJII槽3tf分離槽2の安全弁的機能をも有し、滞
留時間として約12時間稈度含有し、沈殿汚泥を分離液
と、コロイド成分を吸着し九余剰汚泥とC=分離する(
汚泥濃縮工程)。ヤしχ上紀分−mは上記混合攪拌槽1
へ返送さ1、余剰汚泥は外部へ排出さjる。Next, the first layer of separation tank 2 m&: precipitates and adsorbs 9 colloidal components, and the 9 precipitated sludge is sent to sludge thickening tank 3. I
It also has the safety valve function of the IJII tank 3tf separation tank 2, and the residence time is approximately 12 hours.The culm content is contained, and the settled sludge is separated from the separated liquid and the colloidal components are adsorbed and the 9 surplus sludge is separated.
sludge thickening process). The palm χ is the mixing tank 1 above.
1, and excess sludge is discharged outside.
他方、分離槽2の上層部の上澄液ね2次処理の虎めにぼ
り気処理を主とする2次処理部4へ送らnる(2次第理
工S)。On the other hand, the supernatant liquid in the upper layer of the separation tank 2 is sent to the secondary processing section 4, which mainly performs secondary treatment of toramenobori air treatment (Secondary Riko S).
この2次処理部4への供給の際、上述のように発泡の庫
内基質であるし尿中のコロイド成分は上記吸着工程から
沈殿工1!を経る間にほとんど除去さnているので、無
希釈処理であつ′C%発泡は着しく低減する。しかも、
し尿中のSS等も上記一連の工程を経る間に除去される
大めに、被処理有機物量が減少し、コロイド成分のBO
Dへの移行が非常H少なくなるので、2次処°理部4で
の汚泥生成量も低減さする。さらにSS*入量、汚泥生
成量が減少さするので2次処理s4で接触酸化も可能と
なる〇そして最後に2次処理部4からの2次処理液はさ
らに沈殿槽5へ供給さ1、この沈殿槽5で固液分離さn
て、2次処理沈殿物の一部Fi2次処理汚泥(引抜汚泥
)として上記混合攪拌槽1へ返送(2次処理汚泥返送工
程)さ1、該沈殿物の残りは、2次処理部4へ返送さj
る。他力、上澄液は処理水として放流さする。When being supplied to the secondary treatment section 4, the colloidal components in the night soil, which is the internal substrate for foaming, are removed from the precipitation process 1 through the adsorption process as described above. Since most of the carbon dioxide is removed during the process, it is a non-dilution process and the C% foaming is significantly reduced. Moreover,
SS in human waste is also removed during the above series of steps, and the amount of organic matter to be treated is reduced, and the colloidal component BO
Since the amount of sludge transferred to D is extremely small, the amount of sludge produced in the secondary treatment section 4 is also reduced. Furthermore, since the SS* input amount and the sludge production amount are reduced, catalytic oxidation is also possible in the secondary treatment s4.Finally, the secondary treatment liquid from the secondary treatment section 4 is further supplied to the settling tank 51, Solid-liquid separation is carried out in this settling tank 5.
Then, a part of the secondary treatment sediment is returned to the mixing and stirring tank 1 as Fi secondary treatment sludge (drawn sludge) (secondary treatment sludge return process) 1, and the rest of the sediment is sent to the secondary treatment section 4. Sent back
Ru. Otherwise, the supernatant liquid is discharged as treated water.
以上の1うにこの発明のし尿処理方法に工jば、処理に
おい工発泡を低減し、しかも汚泥生成量を賜減少で礁る
等の極めて優jた効果である0As mentioned above, if the sea urchin sewage treatment method of the present invention is modified, it has extremely excellent effects such as reducing treatment odor and foaming, and reducing the amount of sludge produced.
図はこの発明方法の一貢轄例t−示すフローシートを示
す。
1・・・混合攪拌槽、2・・・分離槽、3・・・汚泥濃
縮槽、4・・・2次処理部、5・・・沈殿槽。The figure shows a flow sheet illustrating one example of the method of the invention. 1... Mixing stirring tank, 2... Separation tank, 3... Sludge thickening tank, 4... Secondary treatment section, 5... Sedimentation tank.
Claims (1)
i!を混合゛攪拌し、#2次処理汚泥砿ニジ尿中のコロ
1ド成分を吸着さ(るコロ1ド成分吸着工程と、このコ
ロ1ド成分歌着工機からの混合*を固箪分離し、上記コ
ロ1F成分を沈殿さ(るコロイド成分沈殿工程と、この
コロイド成分沈殿工程からの沈殿物を――する汚泥[1
工根と、上記コロ1ド成分沈殿工程での上澄Imを2次
処理する2次処通工穢と、この2次処理工程で処理さま
た2次処msを固箪分離し、沈殿した2次処理汚泥の一
部管上記コロ1ド成分吸着工程へ返送する2次処理汚泥
返送工程とを備ええし尿処理方法。Level 1 human waste to be treated and secondary treatment sewage I described below
i! The COLO 1 component adsorption step involves mixing and stirring the #2 secondary treatment sludge, adsorbing the COLO 1 component in the urine, and solidly separating the COLO 1 component from the mixing machine*. , a colloidal component precipitation step in which the Collo 1F component is precipitated, and a sludge [1] in which the precipitate from this colloidal component precipitation step is
The supernatant Im from the coro 1 component precipitation step was subjected to secondary treatment. A method for treating human waste comprising a secondary treatment sludge return step in which a portion of the secondary treatment sludge is returned to the colloid component adsorption step.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56188768A JPS5889992A (en) | 1981-11-25 | 1981-11-25 | Treatment for night soil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56188768A JPS5889992A (en) | 1981-11-25 | 1981-11-25 | Treatment for night soil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5889992A true JPS5889992A (en) | 1983-05-28 |
JPS6115760B2 JPS6115760B2 (en) | 1986-04-25 |
Family
ID=16229433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56188768A Granted JPS5889992A (en) | 1981-11-25 | 1981-11-25 | Treatment for night soil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5889992A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6372394A (en) * | 1986-05-29 | 1988-04-02 | Tsurumi Mfg Co Ltd | Method and apparatus for treating sewage |
EP2148516A1 (en) | 2001-07-27 | 2010-01-27 | Hitachi Ltd. | Video display device and color temperature correction method for the same |
JP2016172237A (en) * | 2015-03-17 | 2016-09-29 | 水ing株式会社 | Apparatus and method for treating water |
JP2016172236A (en) * | 2015-03-17 | 2016-09-29 | 水ing株式会社 | Apparatus and method for treating water |
-
1981
- 1981-11-25 JP JP56188768A patent/JPS5889992A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6372394A (en) * | 1986-05-29 | 1988-04-02 | Tsurumi Mfg Co Ltd | Method and apparatus for treating sewage |
EP2148516A1 (en) | 2001-07-27 | 2010-01-27 | Hitachi Ltd. | Video display device and color temperature correction method for the same |
JP2016172237A (en) * | 2015-03-17 | 2016-09-29 | 水ing株式会社 | Apparatus and method for treating water |
JP2016172236A (en) * | 2015-03-17 | 2016-09-29 | 水ing株式会社 | Apparatus and method for treating water |
Also Published As
Publication number | Publication date |
---|---|
JPS6115760B2 (en) | 1986-04-25 |
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