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公开(公告)号：US20230135433A1
公开(公告)日：2023-05-04
申请号：US17915555
申请日：2021-03-30
申请人： Santiago PACHECO-RUIZ , Fernando GAN-SAGASTUME , Jeronimus Gerardus Maria VAN DER LUBBE , Thomas WELANDER , Ana Lucia FERREIRA , Veolia Water Solutions & Technologies Support
发明人： Santiago Pacheco-Ruiz , Fernando Morgan-Sagastume , Jeronimus Gerardus Maria van der Lubbe , Thomas Welander , Ana Lucia Ferreira
IPC分类号： C02F3/28
摘要： The present invention relates to a system or process for anaerobically treating wastewater. The system employs a pre-treatment unit that includes an MBBR having biomass supported on biofilm carriers. The biomass hydrolyzes or leads to a level of hydrolysis of particulate matter and acidifies the wastewater. In the process, the biomass yields relatively high acid production rates while employing a relatively short hydraulic retention time.
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2.发明申请公开(公告)号：US20220364202A1
公开(公告)日：2022-11-17
申请号：US17762446
申请日：2020-08-31
发明人： Kurt Blohm , Jérôme Leparc , Isabelle Lemaitre
摘要： A system and process for concentrating a lithium stream is disclosed. The lithium stream is directed to a reverse osmosis unit which produces a concentrate containing lithium compounds. The RO concentrate is directed through two pressure retarded osmosis (PRO) modules connected in series. The two PRO modules further concentrate the RO concentrate and at the same time yield a diluted brine that is effective to drive an energy recovery device. The RO concentrate leaving the PRO modules is directed to an osmotically assisted reverse osmosis (OARO) module which also further concentrates the RO concentrate.
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公开(公告)号：US20220348480A1
公开(公告)日：2022-11-03
申请号：US17620897
申请日：2020-07-13
发明人： Bastien Riviere , Vincent Georgeaud
摘要： Method for treating water to reduce the dissolved silica content thereof, the method being characterised in that it comprises at least one step of adsorbing the dissolved silica, the step consisting in passing the water through a reactor housing an adsorbent granular material consisting of grains of iron hydroxide (III) and/or iron oxyhydroxide (III) and at least one step of regenerating the adsorbing power of the granular material, the step consisting in bringing the granular material into contact with a base and at least one chloride.
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公开(公告)号：US20220295764A1
公开(公告)日：2022-09-22
申请号：US17836354
申请日：2022-06-09
发明人： Bent Urup
摘要： The present invention is directed to a first farming plant including a central tank and one or more surrounding tanks, where the central tank is used for water treatment and the one or more surrounding tanks are used for the farming of fish. The fish farming plan may also include one or more flow applicators, whereby the flow rate of the water in the surrounding tanks are individually independent of the water exchange rate. The fish farming plant may include several movable permeable section walls in each of the surrounding tanks dividing each surrounding tank into tank sections. Each surrounding tank is equipped with one or more outlets and one or two inlets, and a substantially horizontal/laminar flow structure of the water in each one of the surrounding tanks is provided.
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公开(公告)号：US20220289608A1
公开(公告)日：2022-09-15
申请号：US17639369
申请日：2020-08-21
发明人： Jeffrey M. Pocisk
摘要： The present invention relates to a method of treating frac water containing barium, magnesium, scale-inhibiting compounds and suspending solids and reducing the effectiveness of the scale-inhibiting compounds that tend to prevent barium and magnesium from precipitating.
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公开(公告)号：US20220267175A1
公开(公告)日：2022-08-25
申请号：US17625132
申请日：2020-06-26
摘要： The present invention entails a method of treating an ion exchange regenerant stream containing selenate and removing the selenate from the regenerant stream through an oxidation-reduction process where selenate is reduced to selenite and the selenite is adsorbed onto an adsorbent which, in one embodiment, comprises iron oxide or iron oxyhydroxide. In particular, the method includes catalytically reducing the selenate to selenite in a selenate reduction reactor by reacting iron powder with the selenate in the presence of a nickel powder, which functions as a catalyst, to form selenite which is then adsorbed onto the iron oxide or iron oxyhydroxide.
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公开(公告)号：US20220259086A1
公开(公告)日：2022-08-18
申请号：US17618022
申请日：2020-06-11
摘要： Method for making surface water drinkable, which method is aimed at reducing the suspended matter content, turbidity, organic matter content and colour of the water, and is characterised in that it comprises: ●a step of nanofiltering the water (2) through at least one nanofiltration membrane (2) which has a breakdown capacity between 800 Da and 2000 Da, preferably between 800 and 1000 Da, the nanofiltration step leading to the acquisition of a permeate (7) and a concentrate (5), ●wherein the nanofiltration step is carried out with a conversion rate greater than 95%, ●the method being carried out without any step of adding an anti-scaling agent or any step of remineralising the permeate.
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公开(公告)号：US20220234915A1
公开(公告)日：2022-07-28
申请号：US17613743
申请日：2020-05-25
发明人： Claire Ventresque
IPC分类号： C02F1/44
摘要： Installation for the pressurised filtration of liquid with a view to producing drinking water, comprising at least one membrane-based drinking-water production unit (MPU), each MPU comprising: a plurality of filtration blocks each containing a bundle of pressure tubes mounted in parallel, each pressure tube accommodating at least two membrane-based filtration modules with spiral membranes or hollow-fibre membranes mounted in series, means (20) for feeding the liquid that is to be filtered, means for removing the filtered liquid, and means (30) for removing the concentrate, characterised in that the membranes of the filtration modules are of at least two different types selected from the group consisting of reverse-osmosis membranes and low-pressure reverse-osmosis membranes (4-6), on the one hand, and nanofiltration membranes (1-3) on the other hand, and in that at least one MPU comprises means (21-26) making it possible to alter the order in which the blocks of pressure tubes that it groups together are supplied with fluid. The method consists in supplying the filtration blocks of at least one MPU in a first order of supply in which the tubes containing nanofiltration membranes are at the head of the MPU and then in supplying the pressure tubes in a second order of supply in which the pressure tubes containing reverse-osmosis membranes or low-pressure reverse-osmosis membranes are at the head of the MPU.
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公开(公告)号：US20220194831A1
公开(公告)日：2022-06-23
申请号：US17598973
申请日：2020-03-27
发明人： Argun O. Erdogan
IPC分类号： C02F3/12 , C02F3/08 , C02F1/00 , C02F11/126 , C02F11/125
摘要： The present invention relates to an efficient and cost effective wastewater treatment process that aims to reduce the concentration of soluble and colloidal and particular organic material upstream of a biological treatment process. In particular, the wastewater treatment process described includes a pre-treatment process that relies on biosorption and filtration to reduce the concentration of soluble and insoluble organic matter.
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10.发明申请公开(公告)号：US20220168673A1
公开(公告)日：2022-06-02
申请号：US17673036
申请日：2022-02-16
摘要： A rotary disc filter having a backwash system that includes a series of feed pipes that project into and between successive filter discs that are mounted on a rotatable drum. Connected to an outer terminal end portion of the feed pipes is a series of nozzle holders. Each nozzle holder includes a main conduit, a series of branch conduits that project outwardly from the main conduit, and a connector for connecting the nozzle holder to a respective feed pipe. A series of detachable nozzles are secured to the outer terminal ends of the branch conduits.
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