公开(公告)号：US20170368485A1

公开(公告)日：2017-12-28

申请号：US15540206

申请日：2015-12-29

Applicant: Grundfos Holding A/S

Inventor： Tom Jæger ,  Dominik Marek Dominiak ,  Christian Schou ,  Marcel Gausmann

IPC: B01D37/02 ,  C02F3/12 ,  C02F1/00 ,  C02F11/12 ,  C02F3/28

CPC classification number: B01D37/02 ,  C02F1/001 ,  C02F3/12 ,  C02F3/121 ,  C02F3/1221 ,  C02F3/286 ,  C02F11/04 ,  C02F11/121 ,  C02F2101/30 ,  C02F2209/03 ,  C02F2303/20 ,  Y02E50/343 ,  Y02W10/15

Abstract: The present invention relates to a water treatment system comprising a pre-filtering device receiving water, such as waste water, to be treated and providing a filtrate, and a biological treatment device being fluidic connectable to or in fluidic connection with the pre-filtering device for receiving the filtrate from the pre-filtering device. The biological treatment device is adapted to perform a biological treatment of the filtrate and to provide sludge solids. The pre-filtering device is a cake filtration device having a filtration cake wherein the filtration cake is being provided by deposition of solids from the sludge formed in the biological treatment device. A water treatment process employing the system and a method of forming a filter cake are also described.

公开(公告)号：US11557190B2

公开(公告)日：2023-01-17

申请号：US17054438

申请日：2019-05-02

Applicant: GRUNDFOS HOLDING A/S

Inventor： Christian Schou ,  Ole Hejn Pjengaard ,  Carsten Skovmose Kallesøe

IPC: G08B21/00 ,  G08B21/18 ,  E03F5/22

Abstract: An alarm management module (13) is for a wastewater pumping station that includes at least one pump (9a, 9b) arranged for pumping wastewater out of a wastewater pit (1). The alarm management module (13) is configured to process at least one level variable (h) indicative of a filling level of the wastewater pit (1) and at least one capacity variable (p %, P %, C %) indicative of a pumping capacity of the wastewater pumping station. The alarm management module (13) is configured to trigger an intervention alarm only if all of the following conditions are met: a) the at least one level variable (h) is at or above a predetermined alarm level threshold (hm), b) the at least one level variable (h) is increasing, and c) the at least one capacity variable (p %, P %, C %) is below a capacity threshold.

公开(公告)号：US12135033B2

公开(公告)日：2024-11-05

申请号：US17054419

申请日：2019-05-02

Applicant: GRUNDFOS HOLDING A/S

Inventor： Christian Schou ,  Christian Robert Dahl Jacobsen ,  Carsten Skovmose Kallesøe

IPC: F04D15/00 ,  F04D13/06 ,  F04D13/12

Abstract: A monitoring module (13) identifies an operating scenario in a wastewater pumping station, with at least one pump (9a, 9b) arranged for pumping wastewater out of a wastewater pit (1) into a pipe (11). The monitoring module (13) is configured to process at least one load-dependent pump variable indicative of how the at least one pump (9a, 9b) operates and at least one model-based pipe parameter indicative of how the wastewater flows through the pipe (11) and/or the at least one pump (9a, 9b). The monitoring module is configured to identify an operating scenario in the wastewater pumping station by selecting an operating scenario from a group of predefined operating scenarios dependent on at least one first criterion that is based on the at least one load-dependent pump variable and at least one second criterion that is based on the at least one model-based pipe parameter.