公开(公告)号：US20240024821A1

公开(公告)日：2024-01-25

申请号：US18257355

申请日：2021-12-20

Applicant: GRUNDFOS HOLDING A/S

Inventor： Dominik Marek DOMINIAK ,  Loreen Ople VILLACORTE ,  Victor Augusto YANGALI-QUINTANILLA ,  Sébastien D'ANTONIO ,  Simon HANSEN ,  Jan Carøe AARESTRUP

IPC: B01D61/12 ,  B01D65/02

CPC classification number: B01D61/12 ,  B01D65/02 ,  B01D2313/903 ,  B01D2313/18 ,  B01D2313/243 ,  B01D2315/10

Abstract: A control method uses in a membrane filter system operated in iterative filtration cycles, the cycles including a production period and a following flushing. A setting of a crossflow on the entrance side (4) of a membrane (2) in the production period is controlled such that the energy consumption (E) per filtration cycle reaches an optimum. A corresponding membrane filter system is provided.

公开(公告)号：US20220194826A1

公开(公告)日：2022-06-23

申请号：US17552442

申请日：2021-12-16

Applicant: Grundfos Holding A/S

Inventor： Sébastien D'ANTONIO ,  Victor Augusto Yangali QUINTANILLA ,  Joachim Back KAAS ,  Kristian Lydersen RINDOM

IPC: C02F1/50

Abstract: A method and apparatus are provided for dosing biocide into fluid. A biofilm sensor configured to measure an amount of biofilm on the biofilm sensor is used. A method identifies, if present, in a data set representing measurement over time by the biofilm sensor a minimum and an inflection point and, if identified. According to some embodiments, dosing of biocide is determined to be effectuated when an inflection point has been identified occurring time wise after an identified minimum.