Patent ID: 11884870
Assignee: AGRANA BETEILIGUNGS-AKTIENGESELLSCHAFT
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  A  F  Y | IPC A  C  F

Claim 16:
17. A process fluid for reducing microorganisms within a geothermal borehole, comprising:
water having a hardness of at most 20° dH (German hardness),
an environmentally compatible biostabiliser added to the water to form the process fluid,
the environmentally compatible biostabiliser adapted for use in the process fluid to reduce microorganisms within the geothermal borehole, the biostabiliser comprising at least one organic acid, or alcohol thereof, wherein the at least one organic acid is selected from the group consisting of hop acids; and the process fluid has a hardness of at most 20° dH (German Hardness).