US 12,145,874 B1
Water aeration and treatment method
Cevat Yaman, Dammam (SA); and Omer Aga, Dammam (SA)
Assigned to Imam Abdulrahman Bin Faisal University, Dammam (SA)
Filed by Imam Abdulrahman Bin Faisal University, Dammam (SA)
Filed on Jul. 24, 2024, as Appl. No. 18/782,080.
Application 18/782,080 is a continuation of application No. 18/601,115, filed on Mar. 11, 2024, granted, now 12,091,341.
Application 18/601,115 is a continuation of application No. 18/362,345, filed on Jul. 31, 2023, granted, now 11,981,591, issued on May 14, 2024.
Application 18/362,345 is a continuation of application No. 17/831,913, filed on Jun. 3, 2022, granted, now 11,767,243, issued on Sep. 26, 2023.
Application 17/831,913 is a continuation of application No. 17/153,968, filed on Jan. 21, 2021, granted, now 11,396,464, issued on Jul. 26, 2022.
Application 17/153,968 is a continuation of application No. 16/567,348, filed on Sep. 11, 2019, granted, now 10,961,139, issued on Mar. 30, 2021.
Int. Cl. C02F 3/04 (2023.01); C02F 1/40 (2023.01); C02F 3/10 (2023.01); C02F 3/28 (2023.01); C02F 3/30 (2023.01); C02F 3/00 (2023.01)
CPC C02F 3/04 (2013.01) [C02F 1/40 (2013.01); C02F 3/101 (2013.01); C02F 3/103 (2013.01); C02F 3/104 (2013.01); C02F 3/288 (2013.01); C02F 3/30 (2013.01); C02F 2003/001 (2013.01); C02F 3/301 (2013.01); C02F 3/302 (2013.01); C02F 2301/046 (2013.01); Y02W 10/10 (2015.05); Y02W 10/37 (2015.05)] 3 Claims
OG exemplary drawing
 
1. A water aeration and treatment method, comprising:
retaining contaminated water comprising carbonaceous and nitrogenous compounds in a tank to settle solids present in the contaminated water and allowing oil and grease to rise to the surface of the contaminated water;
skimming the oil and grease from the surface of the contaminated water; and
aerating the contaminated water to form a pre-treated water;
passing the pre-treated water through a water treatment system to obtain an effluent having a reduced content of the carbonaceous and nitrogenous compounds relative to the contaminated water;
wherein the water treatment system comprises:
a waste water treatment structure,
a discharge tank downstream and in fluid communication with the waste water treatment structure;
wherein the waste water treatment structure comprises
a first geotextile fabric layer;
a second geotextile fabric layer;
a third geotextile fabric layer;
a first filler layer comprising plastic particles, arranged between the first and second geotextile fabric layers; and
a second filler layer comprising plastic particles, arranged between the second and third geotextile fabric layers, and
an aeration tank under the first second and third fabric layers and the first and second filler layers, wherein the aeration tank includes a bubbler and/or a sparger configured to oxygenate the pre-treated water,
wherein the first, second, and/or third geotextile fabric layer comprises at least 75 wt. %, relative to total fabric layer weight, of a nonwoven fabric comprising at least 75 wt. %, relative to total nonwoven fabric weight, of polypropylene or polyethylene terephthalate,
wherein the aeration tank, geotextile fabric layers and the filler layers are vertically stacked within a housing, and
wherein the waste water treatment structure is configured such that contaminated water proceeds sequentially through the aeration tank, the first geotextile fabric layer, the first filler layer, the second geotextile fabric layer, the second filler layer, and the third geotextile fabric layer.