Specifications

The Patent Office Journal 17/12/2010
4618
(12) PATENT APPLICATION PUBLICATION (21) Application No.366/CAL/2001 A
(19) INDIA
(22) Date of filing of Application :02/07/2001 (43) Publication Date : 17/12/2010
(54) Title of the invention : A METHOD AND A DEVICE FOR TREATING LIQUIDS
(51) International classification
:C02F 3/22,
3/12
(31) Priority Document No :0002871-2
(32) Priority Date :11/08/2000
(33) Name of priority country :Sweden
(86) International Application No
Filing Date
:NA
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number
Filing Date
:NA
:NA
(62) Divisional to Application Number
Filing Date
:NA
:NA
(71)Name of Applicant :
1)ITT MANUFACTURING ENTERPRISES INC.
Address of Applicant :1105 MARKET STREET, SUITE
1217, WILMINGTON, DE U.S.A.
(72)Name of Inventor :
1)ARBEUS ULF
(57) Abstract :
The invention concerns a method and a device for treating liquids, such as wastewater. According to the invention the liquid is
transported by help of a pump (10) from the lower area of a tank (1) through a vertically directed pipe (3) up to a 180 degree bend (5)
located above the water surface and where air is sucked in through openings in the bend. The air-liquid mixture is then guided through
a second pipe (6) having its outlet (7) close to the tank bottom (2). In this area the flow is once more linked 180 degrees and is directed
through a third pipe (8) ending close to the water surface. Thanks to the linking through the pipe (8), a decrease of the static head is
obtained against which the pump (10) operates.
No. of Pages : 7 No. of Claims : 5