JP2925617B2 - Sewage treatment equipment - Google Patents
Sewage treatment equipmentInfo
- Publication number
- JP2925617B2 JP2925617B2 JP1343647A JP34364789A JP2925617B2 JP 2925617 B2 JP2925617 B2 JP 2925617B2 JP 1343647 A JP1343647 A JP 1343647A JP 34364789 A JP34364789 A JP 34364789A JP 2925617 B2 JP2925617 B2 JP 2925617B2
- Authority
- JP
- Japan
- Prior art keywords
- sewage
- contact
- contact material
- treatment
- carriage
- 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.)
- Expired - Lifetime
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
- Biological Treatment Of Waste Water (AREA)
Description
【発明の詳細な説明】 《産業上の利用分野》 この発明は、接触材を用いた汚水の生物学的処理装置
に関する。DETAILED DESCRIPTION OF THE INVENTION << Industrial application field >> The present invention relates to a biological treatment apparatus for wastewater using a contact material.
《従来の技術》 接触材を汚水に浸漬し、接触材の表面に付着生息する
微生物によって汚れを分解するようにした汚水処理装置
が従来使われている。<< Conventional Technology >> A sewage treatment apparatus in which a contact material is immersed in sewage to decompose dirt by microorganisms attached and inhabiting the surface of the contact material has been conventionally used.
このような装置では、汚水と接触材の接触が充分に行
なわれることが重要である。このため、処理槽の底に設
けたエアレーションデヒューザから連続的に空気を吹き
出して、汚水をかきまわし、汚水と接触材の接触を促進
するようにした装置がある。（空気は、酸素を微生物に
供給して好気性処理する働きもある。）しかし、このよ
うに汚水をかきまわしても、大型のプラントでは接触効
率の改善に限度がある。また、エアレーションエネルギ
ーを多く消費することも見逃せない。In such an apparatus, it is important that the contact between the wastewater and the contact material is sufficiently performed. For this reason, there is an apparatus that continuously blows air from an aeration diffuser provided at the bottom of a treatment tank to stir sewage and promote contact between sewage and a contact material. (Air also has the function of supplying oxygen to microorganisms to perform aerobic treatment.) However, even with such stirring of sewage, the improvement of contact efficiency is limited in large plants. In addition, it cannot be overlooked that a large amount of aeration energy is consumed.
そこで、接触材を円板状に形成して同心状に何枚か並
べ、これを汚水に浸けなからゆっくり回転させるように
したものである。しかし、このものでは、装置が大型に
なり、また、接触面積が大きく取れないという問題があ
る。。Therefore, the contact material is formed in a disk shape and several concentrically arranged, and the contact material is slowly rotated without being immersed in the sewage. However, this method has a problem that the device becomes large and a large contact area cannot be obtained. .
また、いずれの装置でも、接触材表面を覆う生物膜が
肥厚化して接触材が目詰りを起こし、汚水の流路を塞い
で処理能力の低下を招くという問題がある。このため、
逆流洗浄装置を設備し、これで過剰な生物膜を定期的に
落とすようにしていた。In addition, in any of the apparatuses, there is a problem that the biofilm covering the surface of the contact material is thickened, the contact material is clogged, the flow path of the sewage is blocked, and the treatment capacity is reduced. For this reason,
A backwash was provided to periodically remove excess biofilm.
《発明が解決しようとする課題》 この発明は、接触材を用いた汚水処理装置において、
接触材と汚水の接触効率を高め、しかも、生物膜の肥厚
化による接触材の目詰りを防止することを目的とする。<< Problems to be solved by the invention >> This invention relates to a sewage treatment apparatus using a contact material,
An object of the present invention is to increase the contact efficiency between the contact material and wastewater and prevent the contact material from being clogged due to thickening of the biofilm.
《課題を解決するための手段》 この発明は、汚水を受け入れる処理槽と、該処理槽の
側部に水平に敷設されたレールと、該レールに載った台
車と、該台車の下部に取り付けられた支持部材と、該汚
水槽の中の汚水に浸るように該支持体に取り付けられた
接触材と、該台車を往復動させる駆動手段からなる汚水
処理装置を提供する。<< Means for Solving the Problems >> The present invention relates to a treatment tank for receiving sewage, a rail horizontally laid on a side of the treatment tank, a truck mounted on the rail, and a lower part of the truck. A sewage treatment apparatus comprising a supporting member, a contact member attached to the support so as to be immersed in sewage in the sewage tank, and a driving means for reciprocating the carriage.
接触材としては、紐状、帯状、ハニコーム状、板状な
ど、各種のものが使える。板状接触材を使う場合は、台
車の移動方向に平行に並べることも、直角に並べること
も可能である。直角に並べる場合は、水平または垂直軸
まわりに回動自在なよう取り付ける。Various materials such as a string, a band, a honeycomb, and a plate can be used as the contact material. When a plate-like contact material is used, it can be arranged in parallel to the moving direction of the cart or at right angles. If they are arranged at right angles, they are mounted so that they can rotate about a horizontal or vertical axis.
台車の往復動の速度は、あまり小さすぎては効果がな
いし、速すぎると、接触材に付着している生物膜が必要
以上に剥離して逆効果になる。適当な範囲としては、往
復動の平均線速度が毎秒１〜80cm、ストロークが0.1〜4
m、周期が１〜80秒の数値を上げることができる。最適
値は処理槽の形状や接触材の種類などによって変わって
くる。If the speed of the reciprocating movement of the carriage is too small, there is no effect, and if it is too fast, the biofilm adhering to the contact material is unnecessarily peeled off, resulting in an adverse effect. Suitable ranges include an average linear velocity of reciprocation of 1 to 80 cm / sec and a stroke of 0.1 to 4
m, the number of cycles can be increased from 1 to 80 seconds. The optimum value depends on the shape of the processing tank and the type of the contact material.
この装置では、エアレーションは必ずしも必要ない。
したがって、嫌気性処理を行なうことができる。エアア
レーションを行なって好気性消化を行なうことももちろ
ん可能である。In this device, aeration is not necessarily required.
Therefore, anaerobic treatment can be performed. It is of course possible to perform aerobic digestion by performing air aeration.
《作用》 駆動装置で台車を往復動させると、処理槽内の汚水に
浸漬している接触材が往復動する。これにより、接触材
と汚水の均一な接触が確保され、処理効率が向上する。<< Operation >> When the bogie is reciprocated by the driving device, the contact material immersed in the sewage in the treatment tank reciprocates. As a result, uniform contact between the contact material and the wastewater is ensured, and the treatment efficiency is improved.
台車の往復動の速さは、接触材に付着している生物膜
が適度の厚みを保つように調節する。台車を普段はゆっ
くり動かしておいて、接触体表面の生物膜が肥厚化した
ときにスピードを速めて過剰な生物膜を接触材から剥離
させるようにしてもよい。The speed of the reciprocating movement of the cart is adjusted so that the biofilm adhered to the contact material maintains an appropriate thickness. The trolley may be normally moved slowly, and when the biofilm on the surface of the contact body is thickened, the speed may be increased to peel off the excess biofilm from the contact material.
《実施例》 第１図において、符号Ｔは細長い形の処理槽であり、
内部は３つに仕切られている。汚水は第１、第２、第３
の処理槽T1,T2,T3の順序で処理される。<< Embodiment >> In FIG. 1, the symbol T is an elongated processing tank.
The inside is divided into three. Sewage is first, second, third
Are processed in the order of the processing tanks T1, T2, T3.
処理槽Ｔの両側にはレール１が敷設されており、処理
槽Ｔを跨ぐ格好でレールの上に台車２が乗っている。台
車２の下部には、各処理槽Ｔごとに、立体枠である支持
部材３が取り付けられている。第２図、第３図に示すよ
うにこの支持枠３に、帯状の接触材４が何本も上下方向
に張られている。この帯状接触材は、平たい芯の両側に
細い合成繊維をループ状に植毛したものである。Rails 1 are laid on both sides of the processing tank T, and a trolley 2 is mounted on the rail so as to straddle the processing tank T. A support member 3 as a three-dimensional frame is attached to a lower portion of the carriage 2 for each processing tank T. As shown in FIGS. 2 and 3, a number of strip-shaped contact members 4 are stretched in the vertical direction on the support frame 3. This band-shaped contact material is obtained by planting thin synthetic fibers in a loop on both sides of a flat core.
台車２を往復動させるための駆動手段５は、電動機６
と、これによってベルト駆動されるディスククランク軸
７と、ディスククランク軸から延びる連接棒８からな
り、連接棒の先が台車２にピン９でつながれている。電
動機６でディスククランク軸７を回転駆動すると、連接
棒８、したがって台車２がレール上を往復運動する。The driving means 5 for reciprocating the carriage 2 includes an electric motor 6
, A disk crankshaft 7 driven by the belt and a connecting rod 8 extending from the disk crankshaft. The tip of the connecting rod is connected to the carriage 2 with a pin 9. When the motor 6 drives the disk crankshaft 7 to rotate, the connecting rod 8 and therefore the truck 2 reciprocate on the rail.
台車の往復動に伴い、接触材４が水平に往復動し、汚
水と均一に接触する。With the reciprocating movement of the cart, the contact member 4 reciprocates horizontally and makes uniform contact with the wastewater.
この装置は好気的処理を行なうため、第３図に示すよ
うに、処理槽の底にデヒューザ10を設け、これから空気
をあわ状に吹き出すようになっている。In order to perform aerobic treatment, this apparatus is provided with a diffuser 10 at the bottom of the treatment tank, as shown in FIG. 3, from which air is blown in a bubble shape.
次いで、この装置を用いて行なった処理実験について
説明する。Next, a processing experiment performed using this apparatus will be described.
３つの処理槽T1,T2,T3はそれぞれ、長さ2.66m、幅1
m、深さ1m（水深0.8m）の大きさであり、これに毎時0.3
tの汚水を供給した（滞留時間は約８時間）。Each of the three treatment tanks T1, T2, T3 has a length of 2.66m and a width of 1
m, depth 1m (water depth 0.8m), 0.3
t of sewage was supplied (residence time about 8 hours).
処理対象は下水流入汚水であり、流入時の水温は19〜
24℃であった。The target of treatment is sewage inflow sewage.
24 ° C.
台車２の往復動は、周期６秒、ストローク20cm、平均
線速度 毎秒6.7cmであった。The reciprocating motion of the bogie 2 had a cycle of 6 seconds, a stroke of 20 cm, and an average linear velocity of 6.7 cm per second.
吹き込み空気量は、３槽合計で毎分２〜３リットルで
あった。The amount of blown air was 2 to 3 liters per minute in a total of three tanks.
このような条件の下で得られた処理水のBOD（生物科
学的酸素要求量）は２〜6mg/リットルであった。The BOD (biological oxygen demand) of the treated water obtained under such conditions was 2 to 6 mg / liter.
一方、比較のため、同種の汚水を活性汚泥法で処理し
たところ、BODが４〜8mg/リットルであった。このとき
の滞留時間は12時間であった。On the other hand, for comparison, when the same type of wastewater was treated by the activated sludge method, the BOD was 4 to 8 mg / liter. The residence time at this time was 12 hours.
このように、本発明による装置では、滞留時間が活性
汚泥法の３分の２であるにも拘らず、活性汚泥法より優
れたBOD値を示した。Thus, the apparatus according to the present invention exhibited a BOD value superior to the activated sludge method, despite the residence time being two-thirds that of the activated sludge method.
第４図は、接触材に板状のものを用い、接触材14を台
車２の移動方向に平行に並べて支持部材３に取り付けた
ものである。FIG. 4 shows a case where a plate-shaped contact member is used, and the contact members 14 are arranged in parallel to the moving direction of the carriage 2 and attached to the support member 3.
第５図も板状の接触材24を用いたものであるが、この
場合は、接触材24は台車２の移動方向と直角になってお
り、支持部材３に回動自在に取り付けられている。した
がって、台車２が往復動すると、接触板24は図に鎖線で
示すように、前後に傾斜しながら移動する。FIG. 5 also uses a plate-like contact member 24. In this case, the contact member 24 is perpendicular to the moving direction of the carriage 2, and is rotatably attached to the support member 3. . Therefore, when the carriage 2 reciprocates, the contact plate 24 moves while tilting back and forth as shown by a chain line in the figure.
《発明の効果》 この発明の汚水処理装置は、以上説明したように、接
触材を汚水の中で前後に揺動するようにしたものであ
り、接触材と汚水の接触効率が向上し、高い処理能力が
得られる。しかも、台車の往復動の速度を調節すること
により、接触材の表面の生物類が肥厚化して目詰りする
のを防ぐことができ、従来の装置につきものであった逆
流洗浄装置が不要になる。<< Effect of the Invention >> As described above, the sewage treatment apparatus of the present invention is configured such that the contact material swings back and forth in the sewage, and the contact efficiency between the contact material and the sewage is improved. Processing capacity is obtained. In addition, by adjusting the speed of the reciprocating movement of the bogie, it is possible to prevent the organisms on the surface of the contact material from being thickened and clogging, thereby eliminating the need for a backwashing device which is a conventional device. .
また、この装置では、汚水をかきまわすためのエアレ
ーションは必要ではなく、レールの上の台車をゆっくり
としたスピードで前後に動かすだけであるから、エネル
ギーの消費量がたいへん少ないという効果もある。In addition, this device does not require aeration for stirring sewage, but only moves the carriage on the rails back and forth at a slow speed, so that there is an effect that energy consumption is very small.
第１図は汚水処理装置の全体説明図、第２図は処理槽の
縦断面図、第３図は処理槽の横断面図、第４図は他の実
施例を示す処理槽の平面図、第５図はさらに別の実施例
を示す処理槽の縦断面図である。 Ｔ……処理槽、１……レール、２……台車、３……支持
部材、4,14,24……接触材、５……駆動手段1 is an overall explanatory view of a sewage treatment apparatus, FIG. 2 is a longitudinal sectional view of a treatment tank, FIG. 3 is a transverse sectional view of the treatment tank, FIG. 4 is a plan view of a treatment tank showing another embodiment, FIG. 5 is a vertical sectional view of a processing tank showing still another embodiment. T: treatment tank, 1 ... rail, 2 ... trolley, 3 ... support member, 4, 14, 24 ... contact material, 5 ... driving means
Claims (1)
槽の側部に水平に敷設されたレール（１）と、該レール
に載った台車（２）と、該台車の下部に取り付けられた
支持体部材（３）と、該汚水槽の中の汚水に浸るように
該支持体に取り付けられた接触材（4,14,24）と、該台
車を往復動させる駆動手段（５）からなる汚水処理装
置。1. A treatment tank (T) for receiving sewage, a rail (1) laid horizontally on a side of the treatment tank, a truck (2) mounted on the rail, and a lower part of the truck. The support member (3) provided, a contact member (4, 14, 24) attached to the support so as to be immersed in the sewage in the sewage tank, and a driving means (5) for reciprocating the carriage. Wastewater treatment equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1343647A JP2925617B2 (en) | 1989-12-27 | 1989-12-27 | Sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1343647A JP2925617B2 (en) | 1989-12-27 | 1989-12-27 | Sewage treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03202198A JPH03202198A (en) | 1991-09-03 |
| JP2925617B2 true JP2925617B2 (en) | 1999-07-28 |
Family
ID=18363150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1343647A Expired - Lifetime JP2925617B2 (en) | 1989-12-27 | 1989-12-27 | Sewage treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2925617B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100511864B1 (en) * | 2002-08-16 | 2005-09-02 | 주식회사 삼경기술용역단 | Humus holder |
| JP4925652B2 (en) * | 2005-11-29 | 2012-05-09 | みつる 高崎 | River water treatment methods |
-
1989
- 1989-12-27 JP JP1343647A patent/JP2925617B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03202198A (en) | 1991-09-03 |
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