US 11,654,379 B2
Granular media for backwashable particle filter and free phase oil coalescer
Hal Alper, Flowery Branch, GA (US)
Assigned to MYCELX TECHNOLOGIES CORPORATION, Duluth, GA (US)
Appl. No. 15/774,846
Filed by MYCELX TECHNOLOGIES CORPORATION, Duluth, GA (US)
PCT Filed Oct. 19, 2017, PCT No. PCT/US2017/057312
§ 371(c)(1), (2) Date May 9, 2018,
PCT Pub. No. WO2018/075728, PCT Pub. Date Apr. 26, 2018.
Claims priority of provisional application 62/410,623, filed on Oct. 20, 2016.
Prior Publication US 2019/0232195 A1, Aug. 1, 2019
Int. Cl. B01D 15/00 (2006.01); B01D 17/04 (2006.01); C02F 1/40 (2023.01); B03D 1/02 (2006.01); B03D 1/14 (2006.01); C02F 1/00 (2023.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 20/32 (2006.01); B01J 20/34 (2006.01); C02F 1/28 (2023.01); C02F 101/32 (2006.01)
CPC B01D 15/00 (2013.01) [B01D 17/04 (2013.01); B01D 17/045 (2013.01); B01J 20/26 (2013.01); B01J 20/28004 (2013.01); B01J 20/2808 (2013.01); B01J 20/28071 (2013.01); B01J 20/28083 (2013.01); B01J 20/3231 (2013.01); B01J 20/3293 (2013.01); B01J 20/3425 (2013.01); B01J 20/3475 (2013.01); B03D 1/02 (2013.01); B03D 1/14 (2013.01); C02F 1/001 (2013.01); C02F 1/004 (2013.01); C02F 1/288 (2013.01); C02F 1/40 (2013.01); C02F 1/281 (2013.01); C02F 1/285 (2013.01); C02F 2101/32 (2013.01); C02F 2303/16 (2013.01)] 31 Claims
 
1. A method of removing oil and particulates from contaminated water, the method comprising the steps of:
a) flowing water containing contaminants comprising suspended oil droplets and/or particulates through a filter bed comprising a microporous granular media, the microporous granular media comprising a microporous granular substrate having a standard MyCelx Hardness (HM) of greater than or about 7.5 and an average pore size from about 0.2 nm to about 30 nm,
wherein at least a portion of the microporous granular media is at least partially coated or infused with an absorption composition comprising a homogeneous thermal reaction product of an oil component selected from the group consisting of glycerides, fatty acids, fatty acid esters, alkenes and alkynes, and a methacrylate or acrylate polymer component, and
wherein the microporous granular media comprises spinel, natural or synthetic zeolite beryl, topaz, or cubic zirconia;
b) coalescing at least a portion of the oil droplets during flow and retaining the portion of the oil droplets in the filter bed and/or retaining at least a portion of the particulates in the filter bed;
c) terminating the flow of the water after the portion of the oil droplets and/or particulates have been retained in the filter bed; and
d) turbulently backwashing the filter bed with a backwash liquid to release the contaminants, and separating the contaminants from the filter bed.