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1. 发明公开

EP4387933A1 METHOD AND SYSTEM FOR DETERMINING LIQUID LEVELS IN SAND FILTERS AND EFFECTIVE AIR SCOURING DURING BACKWASH 审中-实审
公开(公告)号：EP4387933A1
公开(公告)日：2024-06-26
申请号：EP22765693.1
申请日：2022-08-19
申请人： Saudi Arabian Oil Company
发明人： BASURRAH, Mashhour, Abdullah
IPC分类号： C02F1/00 , G05D9/12 , B01D24/00 , B01D24/14 , B01D24/46
CPC分类号： C02F1/001 , G05D9/12 , C02F2209/00520130101 , C02F2209/4220130101 , B01D24/14 , B01D24/4631 , B01D24/008 , C02F2303/1620130101

2. 发明公开

EP4214162A1 PROCÉDÉ DE TRAITEMENT D'UNE EAU AVEC RENOUVELLEMENT DE L'ADSORBANT À UN ÂGE INTERMÉDIAIRE CIBLÉ 审中-实审
公开(公告)号：EP4214162A1
公开(公告)日：2023-07-26
申请号：EP21777534.5
申请日：2021-09-16
申请人： SUEZ International
发明人： BAUDIN, Isabelle , DANEL, Olivier , JOVANOVIC, Bastien
IPC分类号： C02F1/28 , B01D24/46 , C02F1/42 , C02F103/00 , C02F103/06

3. 发明授权

EP3795228B1 FILTRATION DEVICE 有权
公开(公告)号：EP3795228B1
公开(公告)日：2023-07-05
申请号：EP19802637.9
申请日：2019-05-13
发明人： SAITO, Yasuhiro
IPC分类号： B01D29/66 , B01D24/00 , B01D24/46 , B01D24/14

4. 发明授权

EP3552679B1 HORIZONTAL-FLOW SAND FILTRATION BASIN AND WATER TREATMENT PROCESS THEREOF 有权转让
公开(公告)号：EP3552679B1
公开(公告)日：2023-06-07
申请号：EP17878216.5
申请日：2017-11-23
发明人： ZHANG, Jiansan
IPC分类号： B01D24/10 , B01D24/46 , C02F3/02 , C02F3/34

6. 发明公开

EP4059899A1 AN ARRANGEMENT AND A METHOD OF PRE-FILTRATING A NATURAL WATER TRANSFERRING WATER PUMP 无效
公开(公告)号：EP4059899A1
公开(公告)日：2022-09-21
申请号：EP22020115.6
申请日：2022-03-18
申请人： Turun Seudun Vesiliike Oy
发明人： Aaltonen, Mikko
IPC分类号： C02F1/00 , B01D24/02 , B01D24/46 , E03B3/04 , E03B5/00 , C02F103/00
摘要： An arrangement and a method of pre-filtrating a natural water transferring water pump (36, 36 '), which arrangement comprises a first vessel (12) immersed in a natural water source (10), having a watertight bottom (14) and a watertight side wall surface (16) and a bed (22) of granular filtration material arranged in the lower portion (20) of the first vessel, preferably a sand bed, a second vessel (24) watertight relative to the natural water source, having a roof (26) and a side wall surface (30), the second vessel being in water flow connection with the lower portion of the first vessel (12), a water pump (36, 36 ') for passing filtered water from the first vessel (12) via said water flow connection to the second vessel (24) and further from the second vessel along a water pipe (40) to water use (38, 38'), a countercurrent flushing arrangement of the bed of filtration material, comprising a flushing fluid supply pipe (48), the first end of which having means for generating flushing fluid pulses (42, 62, 52), and the second end of which being fluid flow connection with the first vessel (12), and means (46) for distributing the pulses of flushing fluid to the lower portion of the bed of filtration material, wherein the upper portion (18) of the first vessel is in a by the hydrostatic pressure of the natural water source driven water flow communication with the natural water source (10).

7. 发明公开

EP3964484A1 METHOD OF PURIFYING NATURAL WATER AND WASTEWATER 审中-实审转让
公开(公告)号：EP3964484A1
公开(公告)日：2022-03-09
申请号：EP19926847.5
申请日：2019-07-31
申请人： Dyclar GmbH
发明人： BALAEV, Igor Semenovich
IPC分类号： C02F9/04 , C02F1/52 , C02F1/72 , C02F1/50 , B01D24/46 , B01D24/18
摘要： The invention is classified as a physicochemical method of natural and waste water treatment and can be used in the energy engineering, chemical, petrochemical, food and other industries, especially in treatment of process, domestic, precipitation, mining, oilfield, quarry water and the water of tailing pounds.
The purpose of the invention is to improve the treatment of natural and waste water, to increase the capacity of a moving bed pressure filter and also to ensure high efficiency of the cleaning of the moving bed.
The technical result is the expansion of the range of application of the moving bed pressure filter ensuring high efficiency of treatment of both low-contaminated natural water and highly contaminated waste water.
This result is obtained due to the use of additional stages of chemical treatment during water treatment (oxidizing agent, demulsifier, powder sorbent), the use of various types of a pressure flocculation reactor, grains for a single and double moving bed, which have different grain composition and density, the performance of four-stage cleaning of the moving bed, the use of a dual-flow moving bed pressure filter, as well as due to the use of the additional pressure flocculation reactor followed by the removal of severe contamination with the use of a pressurized hydrocyclone.

8. 发明公开

EP3868454A3 APPARATUS AND METHOD FOR SECURING UNDERDRAIN FILTER BLOCK 审中-公开
公开(公告)号：EP3868454A3
公开(公告)日：2021-11-03
申请号：EP21162570.2
申请日：2011-01-18
申请人： Xylem Water Solutions Zelienople LLC
发明人： BERKEBILE, Dean, T. , BRUCE, Daniel, E , BALL, Christopher, J.
IPC分类号： B01D24/22 , B01D24/46 , B01D24/24 , E03F1/00
摘要： An underdrain filter block for use in draining and backwashing a filtering media in a filter bed includes a top wall, a pair of side walls extending from the top wall, a bottom wall extending between the pair of side walls, and a transverse wall extending from one of the pair of side walls to the other of the pair of side walls. The top wall, the pair of side walls, and the bottom wall define an upper portion and a lower portion. The lower portion includes a grout chamber positioned between the bottom wall and the transverse wall and at least one of the bottom wall and said side walls contains an opening.

9. 发明授权

EP3717094B1 DISPOSITIF IMMERGE DE FILTRATION POUR PISCINE 有权转让
公开(公告)号：EP3717094B1
公开(公告)日：2021-11-03
申请号：EP18827207.4
申请日：2018-11-29
发明人： DESJOYAUX, Jean-Louis , DEJEY, Marc , BONNEFOY, Serge
IPC分类号： B01D24/10 , B01D24/14 , B01D24/46 , E04H4/12

10. 发明授权

EP3316983B1 APPARATUS AND METHOD FOR PURIFICATION OF A FLUID BY MEANS OF A FILTER BED 失效
公开(公告)号：EP3316983B1
公开(公告)日：2021-09-22
申请号：EP16751027.0
申请日：2016-07-01
发明人： FABER, Jelle , VAN DER HEIDEN, Pieter , ROZENDAL, René Alexander
IPC分类号： B01D24/26 , B01D24/46

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