US828515A - Clearing-vat for sewage. - Google Patents

Clearing-vat for sewage. Download PDF

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US828515A
US828515A US28985205A US1905289852A US828515A US 828515 A US828515 A US 828515A US 28985205 A US28985205 A US 28985205A US 1905289852 A US1905289852 A US 1905289852A US 828515 A US828515 A US 828515A
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vat
sewage
clearing
velocity
plates
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US28985205A
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Bruno Schmidt
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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
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments

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  • Tu NO'RRIS PETERSCQ. wAsuma'roN. o. c.
  • the present invention has reference to improvements in clearing-vats for sewage, and relates more especially to that class of clarifiers in which the sewage flows in longitudinal direction through the vat and is freed of its heavier suspended substances by the latter dropping down to the bottom.
  • the highest efficiency is obtained when the velocity with which the sewage passes through is relatively low.
  • the object of the invention is to reduce the velocity of the flow oi the sewage to obtain the best results in cases where the dimensions of the clearing-tank for certain reasons cannot be made as large as the given flow would require.
  • Figure 1 represents a longitudinal vertical sec-v tion through my improved clearing-vat on line A B of Fig. 2.
  • Fig. 2 is a plan View.
  • each deflector-plate d is curved downward, and thelower edge of each plate extends a little lower than that of the next higher plate, forming between them downwardly-curved sluiceways e, which break up the inflowing water into wide thin bands, one above the other.
  • the water finally flows over the edges 9 into the troughs f and is conducted away through pipe 0.
  • PAUL E SCHILLING, PAUL ARRAS.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Biological Treatment Of Waste Water (AREA)

Description

N0- 828,515. V PATENTE D AUG. 14, 1906..
I B. SCHMIDT. I
CLEARING VAT FOR SEWAGE.
APPLICATION FILED DEGJ, 1905.
Tu: NO'RRIS PETERSCQ. wAsuma'roN. o. c.
UNITED STATES PATENT OFFICE.
CLEARING-VAT FOR SEWAGE.
Specification of Letters Patent.
Patented Aug. 14, 1906.
Application filed December 1, 1905. Serial No. 289,852.
To all whom it may concern:
Be it known that I, BRUNO SCHMIDT, a subject of the German Emperor, residing at Dresden, Germany, have invented certain new and useful Improvements in Clearing- Vats for Sewage, of which the following is a specification.
The present invention has reference to improvements in clearing-vats for sewage, and relates more especially to that class of clarifiers in which the sewage flows in longitudinal direction through the vat and is freed of its heavier suspended substances by the latter dropping down to the bottom. The highest efficiency is obtained when the velocity with which the sewage passes through is relatively low.
The object of the invention is to reduce the velocity of the flow oi the sewage to obtain the best results in cases where the dimensions of the clearing-tank for certain reasons cannot be made as large as the given flow would require.
In order to make the invention more readily understood, I have illustrated it on the accompanying sheet of drawings, Figure 1 of which represents a longitudinal vertical sec-v tion through my improved clearing-vat on line A B of Fig. 2. Fig. 2 is a plan View.
In the tank a, into which the sewage or other liquid to be clarified enters through the inlet-pipe b, there is provided in front of the mouth of pipe I; a series of superposed defiecting-plates d, extending clear across the width of the vat. The number of these plates varies according to the velocity of the inrushing sewage. The higher the velocity the greater the number of plates used. Each deflector-plate d is curved downward, and thelower edge of each plate extends a little lower than that of the next higher plate, forming between them downwardly-curved sluiceways e, which break up the inflowing water into wide thin bands, one above the other. The resistance which the water meets in the plates (1 and in the vat efiectively reduces its velocity and improves thereby the precipitation of the suspended substances. The water finally flows over the edges 9 into the troughs f and is conducted away through pipe 0.
What I claim is In a clearing-vat for sewage or the like, the combination of the vat proper, inlet and outlet openings, and a plurality of downwardlycurved deflector-plates infront of the inletopening, extending across the entire width of the vat and each plate extending below somewhat lower than the next higher one, for the purpose of breaking up the liquid into a number of wide, thin bands entering the vat proper at different depths, and thereby reducing the velocity of the entering liquid, substantially as set forth.
In testimony whereof I afiix my signature in presence of two witnesses.
BRUNO SCHMIDT.
Witnesses:
PAUL E. SCHILLING, PAUL ARRAS.
US28985205A 1905-12-01 1905-12-01 Clearing-vat for sewage. Expired - Lifetime US828515A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416867A (en) * 1943-09-06 1947-03-04 Carroll H Coberly Combined sewage settling and digesting tank having an inclined apron discharging into the tank, an effluent channel, and an inverted v-shaped baffle extending across the tank between the apron and the channel
US2428756A (en) * 1944-04-14 1947-10-07 Chain Belt Co Sedimentation chamber for separating solids from liquids having flow distributing means therein
US2638177A (en) * 1949-06-03 1953-05-12 J A Zurn Mfg Company Separating device
US3246451A (en) * 1965-03-22 1966-04-19 Nat Tank Co Liquid distribution system
US3628667A (en) * 1969-09-23 1971-12-21 Buckau Wolf Maschf R Decantation apparatus
US4056477A (en) * 1976-06-21 1977-11-01 Riga, Inc. Separating apparatus for clarifying liquid
US4366058A (en) * 1981-06-02 1982-12-28 Donaldson Company, Inc. High efficiency settling system
US6224773B1 (en) * 1999-10-08 2001-05-01 The Advent Corporation Wastewater treatment system with enhanced directional flow
US20120160751A1 (en) * 2010-12-24 2012-06-28 Korea Institute Of Geoscience And Mineral Resources(Kigam) Oxidation pond including neutralizing agent for treating acid mine drainage

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416867A (en) * 1943-09-06 1947-03-04 Carroll H Coberly Combined sewage settling and digesting tank having an inclined apron discharging into the tank, an effluent channel, and an inverted v-shaped baffle extending across the tank between the apron and the channel
US2428756A (en) * 1944-04-14 1947-10-07 Chain Belt Co Sedimentation chamber for separating solids from liquids having flow distributing means therein
US2638177A (en) * 1949-06-03 1953-05-12 J A Zurn Mfg Company Separating device
US3246451A (en) * 1965-03-22 1966-04-19 Nat Tank Co Liquid distribution system
US3628667A (en) * 1969-09-23 1971-12-21 Buckau Wolf Maschf R Decantation apparatus
US4056477A (en) * 1976-06-21 1977-11-01 Riga, Inc. Separating apparatus for clarifying liquid
US4366058A (en) * 1981-06-02 1982-12-28 Donaldson Company, Inc. High efficiency settling system
US6224773B1 (en) * 1999-10-08 2001-05-01 The Advent Corporation Wastewater treatment system with enhanced directional flow
US20120160751A1 (en) * 2010-12-24 2012-06-28 Korea Institute Of Geoscience And Mineral Resources(Kigam) Oxidation pond including neutralizing agent for treating acid mine drainage

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