B01D21/265

Device for the fractionation of a fluid containing particles and for the extraction of a volume of interest

A device for fractionation of a fluid containing particles and extraction of a particle-lean volume and a particle-rich volume, including: a cylindrical reservoir including an inlet orifice to supply the reservoir with fluid in a pumping direction from first to second ends of the reservoir; a fractionation body extending along a central axis of the reservoir, an upstream end positioned in vertical alignment above the inlet orifice, a cross section of the fractionation body reducing sharply at its downstream end; the fractionation body defining, with the reservoir, a first passage opening at the downstream end onto a recirculation zone with a geometric singularity; and an extraction mechanism downstream of the fractionation body to separate and extract the lean and rich volumes, including a partition delimiting an extraction volume configured, as fluid circulates in the pumping direction, to receive the particle-lean phase formed in the recirculation zone.

Systems and apparatus for removal of harmful algae blooms (HAB) and transparent exopolymer particles (TEP)

A mobile HEB and TEP mitigation device includes a mobile body capable of movement within or upon a body of water. Located within the mobile body is a hydrodynamic separation system which includes a water inlet, a hydrodynamic separation unit and a collection tank. The hydrodynamic separation unit includes two outputs, one for a clean stream output line containing clean water and arranged to re-circulate the clean water, and another for a concentrate stream output line, the concentrate stream output line configured to place concentrated water containing potentially harmful bio-organic materials into the collection tank. Also included on the mobile body is a power source and an engine/steering unit, wherein the steering portion of the engine/steering unit provides a capacity to move the mobile body in an intended direction. The mitigation device may also be used as an embedded part of an on-shore arrangement.

SYSTEMS AND METHODS FOR PARTICLE FOCUSING IN MICROCHANNELS
20170080425 · 2017-03-23 ·

Various systems, methods, and devices are provided for focusing particles suspended within a moving fluid into one or more localized stream lines. The system can include a substrate and at least one channel provided on the substrate having an inlet and an outlet. The system can further include a fluid moving along the channel in a laminar flow having suspended particles and a pumping element driving the laminar flow of the fluid. The fluid, the channel, and the pumping element can be configured to cause inertial forces to act on the particles and to focus the particles into one or more stream lines.

VORTICAL CROSS-FLOW FILTRATION SYSTEM

Systems and methods involving filtration are disclosed. A filtration device includes a first opening, a second opening, and a vortical filter, the vortical filter comprising a rib. The rib may be configured to generate vortices to keep the filtered particles in suspension and to provide a flow path extending from the first opening to the second opening. The filtration device may filter particle from the fluid by cross-flow filtration along the flow path across a filter media surrounding at least a portion of the circumference of the vortical filter. The filtration device may be effective at filters greater than 90% of microplastics mass when post-filtered to 10 microns when measured using the method of either of Example 1 or Example 2. The filtration device may be effective at filtering particles from the fluid at high flow speeds, such as flow speeds greater than 50 cm/sec or greater than 100 cm/sec.

PROCESS FOR THE SEPARATION OF SMOKE

The current invention relates to a process for the separation of a heterogeneous solid-gas mixture comprising a solid carbon fraction and a gas fraction, said process operating at a high temperature Top and in a low oxygen environment, said process comprising the step of: providing a liquid metal, said liquid metal having a gas-liquid interface; and directing said solid-gas mixture at the gas-liquid interface of said liquid metal.

Vortical cross-flow filtration system

Systems and methods involving filtration are disclosed. A filtration device includes a first opening, a second opening, and a vortical filter, the vortical filter comprising a rib. The rib may be configured to generate vortices to keep the filtered particles in suspension and to provide a flow path extending from the first opening to the second opening. The filtration device may filter particle from the fluid by cross-flow filtration along the flow path across a filter media surrounding at least a portion of the circumference of the vortical filter. The filtration device may be effective at filters greater than 90% of microplastics by mass when post-filtered to 10 microns when measured using the method of either of Example 1 or Example 2. The filtration device may be effective at filtering particles from the fluid at high flow speeds, such as flow speeds greater than 50 cm/sec or greater than 100 cm/sec.

Method for separation of particles suspended in a fluid
12403414 · 2025-09-02 · ·

A system and method are provided for producing from a first fluid having particles of a substance suspended or dissolved therein with a first concentration of the substance, a second fluid having a second concentration of the substance lower than the first concentration and a separated-fluid product, in which concentration of the substance is greater than that in the first fluid. The system comprises a pre-treatment module for processing the first fluid to produce aggregates from the substance and at least one separation duct in fluid communication with an outlet of the pre-treatment module, the duct having at least one bay portion having such design as to cause aggregates to accumulate along a pre-determined wall of the bay portion, thereby facilitating separation between the second fluid and the separated-fluid product.

Continuous trichome separation
12465877 · 2025-11-11 · ·

Disclosed is an apparatus and method used to isolate organic acid forms of cannabinoids from a source biomass. This includes the use of a continuous, flow driven, biomass agitation unit, referred to herein as the Continuous Trichome Separator (CTS) Unit. Biomass is fed into the CTS Unit, where trichomes are shaken off of the biomass, and a mixture of trichomes and fluid continue for further processing. The trichomes are melted and then separated using chromatographic separation techniques. Thereafter the organic acids are dehydrated and become isolate compounds.

Hydrodynamic separator with optimal microchannel length

A hydrodynamic separator is configured to separate a liquid having dispersed particles. The separator has a substrate and a liquid channel defined by the substrate, where the liquid channel is configured to receive a liquid having a Reynolds number (Re) within the channel. The liquid channel has an inlet and an outlet and is curved to define an inner radius (R.sub.C). The liquid channel has a liquid channel length (L.sub.D) along the curve and a rectangular cross-section along the length of the curve, where the rectangular cross-section has a height, a width (w), and a hydraulic diameter (D.sub.H). The liquid channel length (L.sub.D) is greater than or equal to a linear focusing length (L.sub.f), and L f = 1598.8 R c w 2 Re D H 3 + 6 . 4 ,
where a is the particle diameter. The liquid channel length (L.sub.D) is greater than or equal to a linear focusing length (Lf), and L f = 1 5 6 . 2 R c Re ( w D H ) 2 + 24.3 .
In various embodiments the liquid channel length (L.sub.D) is greater than or equal to a linear focusing length (L.sub.f), and L f = Re w 2 8 D H <

HYDRODYNAMIC SEPARATOR WITH OPTIMAL MICROCHANNEL LENGTH
20260115629 · 2026-04-30 ·

A hydrodynamic separator is configured to separate a liquid having dispersed particles. The separator has a substrate and a liquid channel defined by the substrate, where the liquid channel is configured to receive a liquid having a Reynolds number (Re) within the channel. The liquid channel has an inlet and an outlet and is curved to define an inner radius (R.sub.C). The liquid channel has a liquid channel length (L.sub.D) along the curve and a rectangular cross-section along the length of the curve, where the rectangular cross-section has a height, a width (w), and a hydraulic diameter (D.sub.H). The liquid channel length (L.sub.D) is greater than or equal to a linear focusing length (L.sub.f), and

[00001] L f = 1 5 9 8 . 8 R c aw 2 ReD H 3 + 6 . 4 ,

where is the particle diameter. The liquid channel length (L.sub.D) is greater than or equal to a linear focusing length (Lf), and

[00002] L f = 1 5 6 . 2 R c Re ( w D H ) 2 + 24.3 .

In various embodiments the liquid channel length (L.sub.D) is greater than or equal to a linear focusing length (L.sub.f), and

[00003] L f = Rew 2 8 D H + 2 4 . 3 .