A method and system for buoyant separation of a target constituent of a sample, the method comprising: at a process chamber, combining a volume of substrates having a first density with the sample, thereby producing a population of target-bound complexes comprising the target constituent bound to at least a portion of the volume of substrates; within the process chamber, physically separating the population of target-bound complexes from the sample based upon interaction between the volume of substrates and an applied force; aggregating the population of target-bound complexes at a collection region of the process chamber; extracting the population of target-bound complexes from the process chamber; and processing the target constituent from the population of target-bound complexes for further analysis.

The system and method for processing flowback fluid include a plurality of wellheads producing flowback fluid flows, a plurality of first stage separators corresponding to at least one wellhead of an installation with multiple wellheads and multiple flowback fluid flows, a plurality of metering devices corresponding to each first stage separator, and a second stage separator in fluid connection with the metering devices and the first stage separators. The second stage separator includes a solids separator to further control the storage volumes of the first and second stage separators and retention time in the second stage separator by removing solids.

A stormwater filter comprising: a vessel having an inlet and an outlet; and a screen disposed within the vessel and arranged to divide at least part of the vessel into an upper section and a lower section. The stormwater filter further comprises: a flow splitter positioned adjacent the inlet of the vessel and/or a substantially vertical screen disposed adjacent the outlet in the upper section of the vessel. The flow splitter comprises an inclined leading edge and first and second deflecting surfaces extending from the leading edge. The first and second deflecting surfaces are angled relative to one another so as to direct incoming flow laterally away from an axis between the inlet and the outlet. The vertical screen comprises first and second screen portions which are angled relative to one another. The first and second screen portions are each hingedly connected to the vessel and are detachably coupled to one another at their distal ends.

A solar powered sediment capture system is disclosed for collecting sediment at environment sites such as lakes and rivers. A mechanical pump directs water from a containment basin to an upper tank and an antistatic pressure tank, both which are elevated. Gravity flow from the upper tank generates vacuum to establish a syphon for drawing a flowable sediment slurry from an environmental borrow site to a filter. Effluent from the filter passes down to the containment basin, which has water level at a lower elevation than that of the borrow site. Anti-static and driller conduits permit gravity flow from the anti-static tank to suspend the sediment and to maintain the slurry at the syphon inlet in a flowable state.

A cyclonic inlet diverter for initiating the separation of a multi-phase inlet fluid flow comprises an enclosed tubular body mounted crosswise within a larger separator vessel. The inlet diverter includes a splitter plate positioned within a center portion of the tubular body and configured to split the inlet flow into a first stream and a second stream, and a swirl plate positioned on each side of the splitter plate with angled surfaces configured to increase the cyclonic motion of the first and second streams within the tubular body. The inlet diverter further includes elongate apertures formed through bottom sidewall portions of the tubular body on each side of the splitter plate, an axial aperture formed through opposing end caps of the tubular body, and at least one radial aperture formed through lateral sidewall portions of the tubular body proximate each opposing end cap.

Provided is a sand setting circulating device for wave-current tank test tailings. A sand collection device is arranged at a front end of a tail gate of a tank body for performing primary collection on a bed-load sand body with a large particle size; a sand-water separating device is arranged at a tail end of the tank body for performing sand-water separation on tail water subjected to energy dissipation so as to perform secondary collection on a suspended load sand body with a small particle size, the sand-water separating device comprising a collection barrel and a sand suction device mounted in the collection barrel; a water outlet is formed in an upper part of the collection barrel, and separated clear water flows into a clear water reservoir through a water return pipe for cyclic utilization; and a computer is arranged for intelligent control.

A turbulating apparatus for a drywell includes a frusto-conical sidewall having an upstream inlet and an opposed downstream outlet. The sidewall has an inner surface on which a plurality of vanes are fixed and extend helically between the inlet and outlet. The apparatus hangs from a top of the drywell and turbulates water to prevent the aggregation of debris inside the drywell.

A separator unit includes a tank defining an internal volume and having an inlet and an outlet. An insert separates the tank into an upper chamber and a lower chamber. The insert includes a weir at an upper side to define an intake area for receiving an influent liquid, a first opening in the intake area for delivering liquid down into the lower chamber and a second opening on an opposite side of the weir for delivering liquid from the lower chamber back up into the upper chamber. The separator may include one or more of the first opening being of arcuate shape, a perforated shroud extending downward from the insert within the lower chamber and/or an upflow pipe extending downward from the second opening into the lower chamber, a bottom of the upflow pipe covered, and a slot opening in a sidewall of the upflow pipe.

A separator unit includes a tank defining an internal volume and having an inlet and an outlet. An insert separates the tank into an upper chamber and a lower chamber. The insert includes a weir at an upper side to define an intake area for receiving an influent liquid, a first opening in the intake area for delivering liquid down into the lower chamber and a second opening on an opposite side of the weir for delivering liquid from the lower chamber back up into the upper chamber. The separator may include one or more of the first opening being of arcuate shape, a perforated shroud extending downward from the insert within the lower chamber and/or an upflow pipe extending downward from the second opening into the lower chamber, a bottom of the upflow pipe covered, and a slot opening in a sidewall of the upflow pipe.

In a preparative separation-purification system for passing a solution containing a target component through a trap column to capture the target component in the column, and for subsequently passing an eluting solvent through the column to elute the captured component and collect it in a container, a dilution passage is merged with a collection passage for sending an eluate from the outlet end of the trap column to the collection container, and a diluting liquid is intermittently introduced through the dilution passage into the collection passage. The diluting liquid lowers the concentration of the target component in the eluate and impedes the deposition of the target component. Thus, clogging of the passage due to the deposition of the target component eluted from the trap column is effectively prevented.