KR20010077955A - Solid-liquid separation apparatus in the liquid-waste treating apparatus - Google Patents

Solid-liquid separation apparatus in the liquid-waste treating apparatus Download PDF

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Publication number
KR20010077955A
KR20010077955A KR1020010000007A KR20010000007A KR20010077955A KR 20010077955 A KR20010077955 A KR 20010077955A KR 1020010000007 A KR1020010000007 A KR 1020010000007A KR 20010000007 A KR20010000007 A KR 20010000007A KR 20010077955 A KR20010077955 A KR 20010077955A
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South Korea
Prior art keywords
sedimentation basin
upflow
sedimentation
trough
solid
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KR1020010000007A
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Korean (ko)
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사케모토요시지
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후카이 쿠니히로
주식회사 유니텍스코리아
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Publication of KR20010077955A publication Critical patent/KR20010077955A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Sewage (AREA)

Abstract

PURPOSE: A solid-liquid separation apparatus of wastewater treatment equipment is provided, which can operate effectively a settling tank by changing the water loads of upstream and downstream parts of the settling tank by a flow control device and can reduce the water loads of the upflow inclined plates of a settling device. CONSTITUTION: The system comprises the followings: (i) a settling tank (1) that is partitioned by a partition wall (3); (ii) an upstream water collecting through (5) prepared at the upstream part (A), at the base of which a sludge hopper (8) is prepared for removing supernatant; (iii) a downstream water collecting trough (6) set at the downstream part (B), in which a settling device (4) of upflow inclined plates are installed; and (iv) a flow control device (10) set at the downstream water collecting part (B).

Description

폐수 처리장치에 있어서의 고액 분리장치{SOLID-LIQUID SEPARATION APPARATUS IN THE LIQUID-WASTE TREATING APPARATUS}Solid-liquid separation device in wastewater treatment equipment {SOLID-LIQUID SEPARATION APPARATUS IN THE LIQUID-WASTE TREATING APPARATUS}

본 발명은 폐수 처리장치에 있어서의 고액(固液 : solid-liquid) 분리장치에 관한 것이다.The present invention relates to a solid-liquid separation device in a wastewater treatment device.

종래의 기술을 도2에 나타낸다. 종래의 기술에 있어서, 집수 트로프는 후단부에만 설치되었고, 전단부에는 설치되지 않았다. 즉 침전지(1)의 전단부에 상등수(침강장치 등에 의하여 폐수 중에 오니 등이 밑바닥으로 침전된 후에 위쪽부분에 위치하는 처리수 즉 고액이 분리된 처리수를 말한다. 이하 '상등수'라고 총칭한다)를 취출(取出)하기 위한 집수 트로프는 구비되지 않았다. 따라서 침전지(1) 유입수는 상향류식 경사판 등의 침강장치(4)를 통과하여 후단 집수 트로프(6)로 유입된다.The prior art is shown in FIG. In the prior art, the collecting trough was installed only at the rear end and not at the front end. That is, the upper part of the sedimentation basin 1 is the supernatant water (the sewage sludge etc. is deposited in the waste water by the sedimentation device, etc.) No water collecting trough for taking out was provided. Therefore, the inflow of the sedimentation basin 1 flows through the settling device 4 such as an upflow inclined plate and flows into the rear stage collecting trough 6.

종래의 기술에서는, 2분할된 침전지(1)의 전단부에서 상등수를 취수하지 않는다. 따라서 침전지(1)의 전단부에 상등수의 취출용(取出用) 전단 집수 트로프(5)는 구비되지 않는다. 이 때문에 침전지(1) 유입수의 전량이 상향류식 경사판 등의 침강장치(4)를 통과하므로 침전지(1)의 전단을 유효하게 이용할 수 없다.In the prior art, the supernatant is not taken in at the front end of the two-divided sedimentation basin 1. Therefore, the shear collection trough 5 for taking out the supernatant water is not provided at the front end of the settling basin 1. For this reason, since the whole amount of inflow of the sedimentation basin 1 passes through the settling apparatus 4, such as an upflow type slope plate, the front end of the sedimentation basin 1 cannot be utilized effectively.

특히 기존에 설치된 침전지(1)에 상향류식 경사판 등의 침강장치(4)를 설치하면 침전지(1) 유입수는 침전지(1)의 전단에 전단 집수 트로프(5)가 구비되어 있지 않으므로 전량이 상향류식 경사판 등의 침강장치(4)를 통과하여 후단 집수 트로프(6)로 유입된다. 따라서 상향류식 경사판 등의 침강장치(4)의 통과용량은 처리수의 전량을 통과시킬 수 있는 용량이 필요하게 되므로 상향류식 경사판 등의 침강장치(4)의 설치량을 감소시킬 수 없었다.In particular, if a sedimentation device (4) such as an upflow inclined plate is installed in the existing sedimentation basin (1), the inflow of the sedimentation basin (1) is not provided with the shear collection trough (5) at the front of the sedimentation basin (1), so It passes through the settling apparatus 4, such as an inclination board, and flows into the rear | middle collection trough 6. Therefore, the passing capacity of the sedimentation apparatus 4, such as an upflow inclination plate, needs to be able to pass the whole amount of treated water, and therefore the installation amount of the settling apparatus 4, such as an upflow inclination plate, cannot be reduced.

도1은 본 발명의 실시형태에 있어서 침전지(沈澱池)(1)의 단면도이다.1 is a cross-sectional view of a sedimentation basin 1 in the embodiment of the present invention.

도2는 종래의 기술에 있어서 침전지(1)의 단면도이다.2 is a cross-sectional view of the sedimentation basin 1 in the prior art.

도3은 전단 집수 트로프(前段 集水 trough)(5)를 잠수시키는 방식으로 설치하는 경우의 침전지(1)의 단면도이다.FIG. 3 is a cross-sectional view of the sedimentation basin 1 when the shear catching trough 5 is installed in a submerged manner.

도4는 전단 집수 트로프(5)의 평면적 배치를 후단 집수 트로프(後段 集水 trough)(6)의 뒤쪽에 설치하는 경우의 실시예로서 침전지(1)의 평면도를 나타낸다.FIG. 4 shows a plan view of the sedimentation basin 1 as an embodiment in the case where the planar arrangement of the front collecting trough 5 is installed behind the rear collecting trough 6.

도5는 전단 집수 트로프(5)의 출구를 후단 집수 트로프(6)에 직접 접속하여 설치하는 경우의 실시예로서 침전지(1)의 평면도를 나타낸다.FIG. 5 shows a plan view of the sedimentation basin 1 as an example in the case where the outlet of the front collecting trough 5 is directly connected to the rear collecting trough 6.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 : 침전지(沈澱池) 2 : 정류벽(整流壁)1: sedimentation basin 2: rectification wall

3 : 간막이 벽3: partition wall

4 : 상향류식(上向流式) 경사판 등의 침강장치(沈降裝置)4: Sedimentation apparatus, such as an upward flow inclined plate

5 : 전단 집수 트로프(前段 集水 trough)5: shear collection trough

6 : 후단 집수 트로프(後段 集水 trough)6: Back end trough

7 : 오니 수거기(汚泥 收去機) 8 : 오니 호퍼(hopper)7: sludge collector 8: sludge hopper

9 : 오니 수거기 스토퍼(stopper) 10 : 유량(流量) 제어장치9: sludge collector stopper 10: flow control device

11 : 스컴 스키머(scum skimmer)11: scum skimmer

본 발명은, 상향류식 경사판 등의 침강장치(4)를 설치하는 후단, 2분할되는 침전지(2)의 전단에는 전단 집수 트로프(5)를 설치한다.According to the present invention, a shear collection trough 5 is provided at the rear end of the sedimentation basin 2, which is divided into two stages, in which a sedimentation apparatus 4 such as an upflow inclined plate is provided.

다음에 본 발명의 실시형태에 대해서 설명한다.Next, embodiment of this invention is described.

(실시예1)Example 1

본 발명을 실시한 경우의 상태를 도1에 나타낸다. 도1은 침전지(1)의 단면을 나타낸다.The state at the time of implementing this invention is shown in FIG. 1 shows a cross section of the settling basin 1.

도1에 의거하여 발명의 상세한 내용을 설명한다.The details of the invention will be described with reference to FIG.

본 고액 분리장치는 침전지(1), 정류벽(2), 간막이 벽(3), 상향류식(上向流式) 경사판 등의 침강장치(4), 전단 집수 트로프(5), 후단 집수 트로프(6), 오니 수거기(7), 오니 호퍼(8), 오니 수거기 스토퍼(9), 유량 제어장치(10), 스컴 스키머(11)로 구성된다.The solid-liquid separator is a sedimentation basin (1), a rectifying wall (2), a partition wall (3), a settling device (4) such as an upflow inclined plate, a shear collecting trough (5), and a rear collecting trough ( 6), a sludge collector 7, a sludge hopper 8, a sludge collector stopper 9, a flow control device 10, and a scum skimmer 11.

도1에 나타내는 바와 같이, 침전지(1)의 길이L는 폐수의 흐름방향에 대해 간막이 벽(3)에 의하여 전단의 A부분과 후단의 B부분으로 2분할되어 있다. 전단인 A부분에는, A부분에서 처리되는 상등수를 취수(取水)하기 위한 전단 집수 트로프(5)가 설치되어 있다. 전단 집수 트로프(5)는 스컴 스키머(11)의 뒷부분에 설치되는 것이 바람직하다. 후단인 B부분에는, 상향류식 경사판 등의 침강장치(4)에 의하여 상등수를 취수하기 위한 후단 집수 트로프(6)가 설치되어 있다. 또한 전단 집수 트로프(5)와 후단 집수 트로프(6)의 출구 쪽에는 밸브, 보(洑), 수위차(水位差) 등을 사용하는 유량 제어장치(10)를 설치하여 전단부와 후단부의 처리량을 변경할 수 있도록 되어 있다.As shown in Fig. 1, the length L of the sedimentation basin 1 is divided into two parts, the A portion at the front end and the B portion at the rear end, by the partition wall 3 in the flow direction of the wastewater. In the A portion, which is the front end, a shear collection trough 5 for intake of the supernatant water treated in the A portion is provided. The shear catching trough 5 is preferably installed at the rear of the scum skimmer 11. A rear stage collecting trough 6 for collecting the supernatant water is provided in part B, which is the rear stage, by means of a settling device 4 such as an upflow inclined plate. In addition, at the outlet side of the front collecting trough 5 and the rear collecting trough 6, a flow rate control device 10 using a valve, a beam, a water level difference, or the like is provided, so that the throughput of the front end portion and the rear end portion is provided. You can change it.

침전지(1)의 내부에는 오니 수거기(7)가 설치되어 있다. 이 오니 수거기(7)에는, 오니 수거기(7)가 이상동작을 할 때에 상향류식 경사판 등의 침강장치(4)를 파손하지 않도록 오니 수거기(7)의 상승을 방지하는 오니 수거기 스토퍼(9)가 양쪽 또는 가운데에 설치되어 있다. 오니 수거기 스토퍼(9)는 오니 수거기(7)의 스크레이퍼(scraper)의 양쪽 끝부분을 누름으로써 스토퍼가 동작하는 것이다. 따라서 오니 수거기 스토퍼(9)의 길이는 오니 수거기(7)의 스크레버에 장착된 피치의 1피치 이상으로 한다.The sludge collector 7 is provided in the sedimentation basin 1. The sludge collector 7 is a sludge collector stopper which prevents the sludge collector 7 from being raised so as not to damage the sedimentation apparatus 4 such as an upflow inclined plate when the sludge collector 7 is abnormally operated. (9) is provided at both sides or the center. The sludge collector stopper 9 operates the stopper by pressing both ends of a scraper of the sludge collector 7. Therefore, the length of the sludge collector stopper 9 is set to 1 pitch or more of the pitch mounted on the scrubber of the sludge collector 7.

폐수는 정류벽(2)을 거쳐서 침전지(1)로 유입된다. 상등수는 전단 집수 트로프(5)와 후단 집수 트로프(6)로 유출된다. 주된 침전물은 침전지(1)의 전단 A부분에서 침전된다. 그 후에 나머지 침전물은 B부분에 설치되는 상향류식 경사판 등의 침강장치(4)에 의하여 침전된다. 침전지(1)의 바닥부분에 침전되는 오니는 오니 수거기(7)에 의하여 오니 호퍼(8)로 모아져 침전지(1) 밖으로 배출된다.Wastewater enters the settling basin 1 via the rectifying wall 2. The supernatant flows out into the front collecting trough 5 and the rear collecting trough 6. The main sediment is precipitated at the shear A part of the sedimentation basin (1). After that, the remaining precipitate is precipitated by a settling device 4 such as an upflow inclined plate installed in the B portion. The sludge settled at the bottom of the settling basin 1 is collected by the sludge collector 7 into the sludge hopper 8 and discharged out of the settling basin 1.

이때At this time

Q : 침전지(1) 유입수량Q: Inflow of sedimentation basin (1)

Q1: 전단 집수 트로프(5)에서 상등수의 유출량Q 1 : Outflow of supernatant from shear catch trough (5)

Q2: 후단 집수 트로프(6)에서 상등수의 유출량Q 2 : Outflow of supernatant from the rear stage collecting trough (6)

S1: 침전지(1) A부분의 침전지 표면적S 1 : Sedimentation basin (1) Sedimentation basin surface area of Part A

S2: 침전지(1) B부분의 상향류식 경사판 등의 침강장치(4) 유효 침전면적S 2 : Sedimentation basin (1) Sedimentation device (4) Effective sedimentation area, such as the upflow type slope plate of B part

으로 하면If

Q ＝ Q1＋ Q2,Q = Q 1 + Q 2 ,

Q1/ S1＝ Q2/ S2 Q 1 / S 1 = Q 2 / S 2

로 되는 바와 같이 B부분의 상향류식 경사판 등의 침강장치(4)의 유효 침전면적을 결정하면 침전지(1)는 전단, 후단 모두 균일한 부하로 운전된다. 또한 Q1, Q2를 변경함으로써 침전지(1)의 전단과 후단의 부하를 변경할 수 있다.When the effective sedimentation area of the sedimentation device 4, such as the upflow type inclined plate of the portion B, is determined as described above, the sedimentation basin 1 is operated with a uniform load in both the front end and the rear end. In addition, by changing Q 1 and Q 2 , the load at the front and rear ends of the sedimentation basin 1 can be changed.

(실시예2)Example 2

전단 집수 트로프(5)를 잠수시키는 방식으로 설치하는 경우의 실시예를 도3에 나타낸다.3 shows an embodiment in which the shear catching trough 5 is installed in a submerged manner.

도3은 침전지(1)의 단면을 나타낸다.3 shows a cross section of the sedimentation basin 1.

(실시예3)Example 3

평면적으로 전단 집수 트로프(5)를 상향류식 경사판 등의 침강장치(4)의 후단에 배치하는 경우의 예를 도4에 나타낸다. 도4는 침전지(1)의 평면도를 나타낸다.An example in the case where the front-end collecting trough 5 is arranged at the rear end of the settling device 4 such as an upflow inclined plate in plan view is shown in FIG. 4 shows a plan view of the sedimentation basin 1.

이 경우에 침전지(1)의 전단에서 상등수는 간막이 벽(3)의 측면 또는 상향류식 경사판 등의 침강장치(4) 하부의 어느 한쪽 또는 양쪽 부분을 통과하여 전단 집수 트로프(5)에 취수되게 된다.In this case, the supernatant water at the front end of the sedimentation basin 1 passes through one or both parts of the side wall of the partition wall 3 or the lower part of the sedimentation device 4 such as an upflow inclined plate to be taken into the shear collecting trough 5. .

(실시예4)Example 4

전단 집수 트로프(5)의 출구를 후단 집수 트로프(6)에 직접 접속하여 설치하는 경우의 실시예를 도5에 나타낸다.5 shows an embodiment in which the outlet of the front collecting trough 5 is directly connected to the rear collecting trough 6 and provided.

도5는 침전지(1)의 평면도를 나타낸다.5 shows a plan view of the sedimentation basin 1.

전단의 침전부에 설치하는 전단 집수 트로프(5)에서 상등수를 제거한다. 그 후에 나머지 수량(水量)이 후단의 침전지(1)에 설치되는 상향류식 경사판 등의 침강장치(4)로 유입되므로 상향류식 경사판 등의 침강장치(4)의 수량 부하를 작게 할 수 있다. 또한 유량 제어장치(10)에 의하여 침전지(1)의 전단과 후단의 부하를 변경할 수 있으므로 침전지(1)를 효율적으로 운전할 수 있다.The supernatant is removed from the shear catching trough (5) provided in the settling section of the shear. After that, the remaining amount of water flows into the settling device 4 such as an upflow type inclined plate provided in the sedimentation basin 1 at the rear end, so that the water load of the settling device 4 such as the upflow type inclined plate can be reduced. In addition, since the load of the front and rear ends of the sedimentation basin 1 can be changed by the flow rate control device 10, the sedimentation basin 1 can be efficiently operated.

오니 수거기 스토퍼(9)에 의해 상향류식 경사판 등의 침강장치(4)의 파손방지도 할 수 있다.The sludge collector stopper 9 can also prevent damage to the settling device 4 such as an upflow inclined plate.

Claims (3)

상향류식(上向流式) 경사판 등의 침강장치(沈降裝置)가 설치되는 침전지(1)를 간막이 벽(3)에 의하여 2분할하고, 흐름 방향의 전단 분할부에 전단 집수 트로프(前段 集水 trough)(5)를 설치하는 것을 특징으로 하는 폐수 처리장치에 있어서의 고액(固液) 분리장치.The sedimentation basin 1, in which a sedimentation device such as an upflow inclined plate, is installed, is divided into two by means of a partition wall 3, and a shear collection trough is formed at the shear division in the flow direction. A solid-liquid separator in a wastewater treatment apparatus, characterized by providing a trough (5). 상향류식 경사판 등의 침강장치가 설치되는 침전지(1)의 전단 집수 트로프(5)와 후단(後段) 집수 트로프(6)의 출구쪽에 유량(流量) 제어장치(10)를 부가하여 설치하는 것을 특징으로 하는 폐수 처리장치에 있어서의 고액 분리장치.It is characterized in that a flow rate control device (10) is added and installed at the outlet side of the front end collecting trough (5) and the rear end collecting trough (6) of the sedimentation basin (1), on which a sedimentation device such as an upflow slope plate is installed. Solid-liquid separator in a wastewater treatment apparatus. 상향류식 경사판 등의 침강장치가 설치되는 침전지(1)의 오니 수거기(汚泥 收去機)(7)에 오니 수거기 스토퍼(stopper)(9)를 설치하는 것을 특징으로 하는 폐수 처리장치에 있어서의 고액 분리장치.In the wastewater treatment apparatus characterized in that the sludge collector stopper (9) is provided in the sludge collector (7) of the sedimentation basin (1) in which a sedimentation device such as an upflow slope plate is installed. Solid-liquid separator.
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