US1281816A - Air-diffusing apparatus. - Google Patents
Air-diffusing apparatus. Download PDFInfo
- Publication number
- US1281816A US1281816A US16809417A US16809417A US1281816A US 1281816 A US1281816 A US 1281816A US 16809417 A US16809417 A US 16809417A US 16809417 A US16809417 A US 16809417A US 1281816 A US1281816 A US 1281816A
- Authority
- US
- United States
- Prior art keywords
- blocks
- air
- diffusing
- recess
- chamber
- 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
- 239000007788 liquid Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2312—Diffusers
- B01F23/23125—Diffusers characterised by the way in which they are assembled or mounted; Fabricating the parts of the diffusers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2312—Diffusers
- B01F23/23123—Diffusers consisting of rigid porous or perforated material
Definitions
- My invention relates to new and useful improvements in apparatus for introducing relatively fine bubbles of gas into a body of sewage or other liquid, and a particular application of the invention is found in connection with the activated sludge process of treating sewage.
- a most efficient medium for diffusing air bubbles of a'sufliciently minute nature comprises a slab or slabs ofwood cut transversely of the grain, whereby transverse minute passages for the air are defined by the fibers of the wood.
- Sewage treating operations require a relatively large difiusing surface, and I have found that the use of a plurality of rather small slabs is preferable.
- Figure 1 is a vertical sectional view I through a diffusing bed constructed in accordance with my invention.
- Fig. 2 is a plan view of the diffusing bed, with the blocks at one end thereof removed to show the bottom of the container.
- 5 designates a block of concrete or other material forming Patented Got. 15, 1918.
- a distributing chamber is defined between the blocks and the bottom of the opening, and for supplythe bottom of the chamber 6 are curved to correspond to the curvature .of said bottom and of the top face of the block 5, and consequently the blocks 7 disposed in the opening assume an arcuate contour.
- the blocks 7 are fitted withinthe chamber 6 and are so proportioned with re- ,spect thereto as to snugly'close the mouth of the chamber. Water is then poured over said blocks, which conse'ouentlv' swell and thus exert a considerable pressure against each other and against the side edges of the chamber which serves to provide an effectual air tight seal for thedistributing chamber heretofore mentioned.
- the entire expanse of the bed may be utilized for diffusing operations.
- Air pressure strains on the bed are. effectually resisted by the arcuate' arrangement'of the blocks, whereby the blocks are mutually braced, and water pressure strain on these blocks is resisted by their seating engagement on the ribs 6, which are relatively numerous.
- a liquid container having means for aerating the liquids therein, said means comprising a member having a recess provided with a concave bottom, a plurality of difiusing blocks disposed edge to edge and posidisposed in said recess in the membenthe curvature of said arch conforming, to the curvature of the bottom of said-recess,--
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Description
C H. NORDELL.
AIR DIFFUSING APPARATUS.
APPLICATION FILED MAYIZ. 191].
1,28 1,1 6, Patented Oct. 15, 1918.
.AIR-DIFFUSING APPARATUS.
" irnn sraras cAnL H. NORDELL, or MILWAUKEE, WISCONSIN.
Specification of Letters Patent.
Application filed Kay 12, 1917. Serial No. 168,094.
To all whom it may concern:
, Be it known that I, CARL H. NORDELL, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Air-Diffusing Apparatus; and I do hereby declare that the following is a full, clear, and exact description thereof. I
My invention relates to new and useful improvements in apparatus for introducing relatively fine bubbles of gas into a body of sewage or other liquid, and a particular application of the invention is found in connection with the activated sludge process of treating sewage.
As set out in Patent No. 1208821 granted to me December 19th, 1916, I have found that a most efficient medium for diffusing air bubbles of a'sufliciently minute nature comprises a slab or slabs ofwood cut transversely of the grain, whereby transverse minute passages for the air are defined by the fibers of the wood.
Sewage treating operations require a relatively large difiusing surface, and I have found that the use of a plurality of rather small slabs is preferable.
It is therefore, primarily my object to provide an eflicient means for securing the slabs of wood in place, and it is more particularly an object to provide an arrangement whereby the blocks may be all disposed in abutting relation to procure a complete expanse of diffusing surface and wherein the blocks are efiiciently braced to prevent their possible breakage or displacement due to the various pressures encounteredin operation.
With the above and other objects and advantages in view, the invention resides more particularly in the novel combination, formation and arrangement of parts hereinafter described and pointed out in the appended claims.
In the drawingsz' Figure 1 is a vertical sectional view I through a diffusing bed constructed in accordance with my invention. Fig. 2 is a plan view of the diffusing bed, with the blocks at one end thereof removed to show the bottom of the container.
Referring now more particularly to the accompanying drawings, 5 designates a block of concrete or other material forming Patented Got. 15, 1918.
the bottom of a tank A and having its top face longitudinally concaved and inset inwardly of its edges to form an air distributing chamber 6, the side walls of which are adapted to be abuttingly engaged by the adjacent edges of a plurality of diffusing blocks '7 disposedtherein, the blocks being held in the mouth portion of the chamber and spaced from the bottom thereof by series of transverse ribs 6at the sides of the bottom of the opening. Thus a distributing chamber is defined between the blocks and the bottom of the opening, and for supplythe bottom of the chamber 6 are curved to correspond to the curvature .of said bottom and of the top face of the block 5, and consequently the blocks 7 disposed in the opening assume an arcuate contour. In assembling the bed, the blocks 7 are fitted withinthe chamber 6 and are so proportioned with re- ,spect thereto as to snugly'close the mouth of the chamber. Water is then poured over said blocks, which conse'ouentlv' swell and thus exert a considerable pressure against each other and against the side edges of the chamber which serves to provide an effectual air tight seal for thedistributing chamber heretofore mentioned. I
By this arrangement the entire expanse of the bed may be utilized for diffusing operations. Air pressure strains on the bed are. effectually resisted by the arcuate' arrangement'of the blocks, whereby the blocks are mutually braced, and water pressure strain on these blocks is resisted by their seating engagement on the ribs 6, which are relatively numerous.
positioned to form an arch, said blocks being disposed in said recess in the member, the curvature of said arch conforming to the curvature of the bottom of 'said recess, curved spacing ribs disposed between the plurality of blocks and the bottom of said'recess, and means for admitting air be tween the blocks and the bottom of said recess.
2.- A liquid container having means for aerating the liquids therein, said means comprising a member having a recess provided with a concave bottom, a plurality of difiusing blocks disposed edge to edge and posidisposed in said recess in the membenthe curvature of said arch conforming, to the curvature of the bottom of said-recess,--
means for spacing the blocksfrom said botvtioned to form an arch, said bIocI isbeing 15 tom of the recess, and means for admitting 20 air between the blocks and the bottom of the recess.
In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee,
in the county of Milwaukee and State of. 25
Wisconsin.
' CARL H. NORDELL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16809417A US1281816A (en) | 1917-05-12 | 1917-05-12 | Air-diffusing apparatus. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16809417A US1281816A (en) | 1917-05-12 | 1917-05-12 | Air-diffusing apparatus. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1281816A true US1281816A (en) | 1918-10-15 |
Family
ID=3349406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16809417A Expired - Lifetime US1281816A (en) | 1917-05-12 | 1917-05-12 | Air-diffusing apparatus. |
Country Status (1)
Country | Link |
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US (1) | US1281816A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2601225A (en) * | 1949-07-28 | 1952-06-24 | Sandor Florence Margaret Anne | Device for use in washing the hair |
US2659582A (en) * | 1950-11-10 | 1953-11-17 | Sandor Florence Margaret Anne | Foam forming device |
WO2003089121A1 (en) * | 2002-04-16 | 2003-10-30 | Mathis Teri H | Water aerator apparatus |
US20060273477A1 (en) * | 2005-04-25 | 2006-12-07 | Watt Ronald D | Wood air diffuser for use in saltwater aquarium foam fractionators |
US20120086137A1 (en) * | 2010-10-06 | 2012-04-12 | Ryu Sang-Ryul | Method and apparatus for generating nano-bubbles in liquid |
-
1917
- 1917-05-12 US US16809417A patent/US1281816A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2601225A (en) * | 1949-07-28 | 1952-06-24 | Sandor Florence Margaret Anne | Device for use in washing the hair |
US2659582A (en) * | 1950-11-10 | 1953-11-17 | Sandor Florence Margaret Anne | Foam forming device |
WO2003089121A1 (en) * | 2002-04-16 | 2003-10-30 | Mathis Teri H | Water aerator apparatus |
US6712341B1 (en) * | 2002-04-16 | 2004-03-30 | Teri H. Mathis | Water aerator apparatus |
US20060273477A1 (en) * | 2005-04-25 | 2006-12-07 | Watt Ronald D | Wood air diffuser for use in saltwater aquarium foam fractionators |
US7472895B2 (en) * | 2005-04-25 | 2009-01-06 | Watt Ronald D | Wood air diffuser for use in saltwater aquarium foam fractionators |
US20120086137A1 (en) * | 2010-10-06 | 2012-04-12 | Ryu Sang-Ryul | Method and apparatus for generating nano-bubbles in liquid |
US8794604B2 (en) * | 2010-10-06 | 2014-08-05 | Gk Oxy Co., Ltd. | Method and apparatus for generating nano-bubbles in liquid |
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