公开(公告)号：US11535539B2

公开(公告)日：2022-12-27

申请号：US16344856

申请日：2017-11-17

Applicant: Kemira Oyj

Inventor： James Currie Allen ,  Tafadzwa Mariga

IPC: C02F1/72 ,  C02F1/00 ,  C02F11/06 ,  C02F101/10 ,  C02F103/34

Abstract: A method for treating a wastewater or a wastewater sludge includes adding performic acid to the wastewater and/or the waster sludge as an odor controlling agent and/or corrosion controlling agent.

公开(公告)号：US11420887B2

公开(公告)日：2022-08-23

申请号：US15533519

申请日：2015-12-10

Applicant: KEMIRA OYJ

Inventor： Roderick Abinet ,  Greg Land ,  David Soper ,  Tafadzwa Mariga

IPC: C02F1/52

Abstract: Provided for example is a system and method for real-time monitoring or controlling wastewater or sludge dewatering or thickening processes. The system and method can also enable operators to remotely monitor their own system off-site.

公开(公告)号：US20200048118A1

公开(公告)日：2020-02-13

申请号：US16344856

申请日：2017-11-17

Applicant: Kemira Oyj

Inventor： James Currie Allen ,  Tafadzwa Mariga

IPC: C02F1/72 ,  C02F1/00 ,  C02F11/06

Abstract: The present invention provides a method for treating wastewater or wastewater sludge, in which method percarboxylic acid is used as an odor controlling agent and/or corrosion controlling agent.