公开(公告)号：US11851346B2

公开(公告)日：2023-12-26

申请号：US17252693

申请日：2019-07-03

Applicant: TROJAN TECHNOLOGIES GROUP ULC

Inventor： Ali Safarzadeh-Amiri ,  Zachary Bryan Scott ,  John Ray Walton

IPC: C01G49/12 ,  C01G49/10 ,  C02F1/52 ,  C02F101/10

CPC classification number: C01G49/10 ,  C01G49/12 ,  C02F1/5245 ,  C02F2101/101 ,  C02F2303/02

Abstract: An embodiment provides A method for making a non-hazardous iron product for treating wastewater, including: adding sodium bisulfite to a solution comprising iron, creating an aqueous solution; adding an amount of sodium hydroxide to the aqueous solution to increase the pH of the aqueous solution to between 2-2.5; determining an amount of sodium bicarbonate and adding the identified amount of sodium bicarbonate to the aqueous solution, wherein the sodium bicarbonate adjusts the pH of the aqueous solution to a desired pH; and providing a buffer to the aqueous solution to generate a slurry. Other embodiments are described and claimed.

公开(公告)号：US20210114895A1

公开(公告)日：2021-04-22

申请号：US17252693

申请日：2019-07-03

Applicant: TROJAN TECHNOLOGIES GROUP ULC

Inventor： Ali Safarzadeh-Amiri ,  Zachary Bryan Scott ,  John Ray Walton

IPC: C01G49/10 ,  C02F1/52 ,  C01G49/12

Abstract: An embodiment provides A method for making a non-hazardous iron product for treating wastewater, including: adding sodium bisulfite to a solution comprising iron, creating an aqueous solution; adding an amount of sodium hydroxide to the aqueous solution to increase the pH of the aqueous solution to between 2-2.5; determining an amount of sodium bicarbonate and adding the identified amount of sodium bicarbonate to the aqueous solution, wherein the sodium bicarbonate adjusts the pH of the aqueous solution to a desired pH; and providing a buffer to the aqueous solution to generate a slurry. Other embodiments are described and claimed.