公开(公告)号：US11407668B1

公开(公告)日：2022-08-09

申请号：US15427574

申请日：2017-02-08

Applicant: Ecolab USA Inc.

Inventor： David B. Mitchell ,  Petia Todorova Tontcheva

IPC: C02F11/12 ,  C02F11/121 ,  C02F1/24 ,  C02F1/52 ,  C02F11/14

Abstract: A method for treating wastewater or sludge includes treating a sludge having a first viscosity of from about 3,000 cP to about 15,000 cP by shearing the sludge to obtain a treated sludge having a second viscosity of less than 3,000 cP, where the second viscosity persists for a period of time. The sludge may be thickened by dewatering. A chemical agent may be added to the thickened sludge during, before, or after shearing. The treated sludge may further be pumped, transported, or otherwise handled.