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In civil engineering (specifically hydraulic engineering), a hydrodynamic separator (HDS), also called a swirl separator, is a stormwater management device that uses cyclonic separation to control water pollution. They are designed as flow-through structures with a settling or separation unit to remove sediment and other pollutants.
Oil–water separator; Organisms used in water purification; Parallel plate oil–water separator; Photobioreactor; Reed bed; Regenerative thermal oxidizer; Retention basin; Reverse osmosis; Rotating biological contactor; Sand filter; Screen filter; Sedimentation (water treatment) Septic tank; Septic tank conversion [2] Sequencing batch reactor ...
Ecohydraulics is an interdisciplinary science studying the hydrodynamic factors that affect the survival and reproduction of aquatic organisms and the activities of aquatic organisms that affect hydraulics and water quality. Considerations include habitat maintenance or development, habitat-flow interactions, and organism responses.
The separation process is purely physical and both fractions (permeate and retentate) can be obtained as useful products. Cold separation using membrane technology is widely used in the food technology, biotechnology and pharmaceutical industries. Furthermore, using membranes enables separations to take place that would be impossible using ...
Cyclonic separation is a method of removing particulates from an air, gas or liquid stream, without the use of filters, through vortex separation. When removing particulate matter from liquid, a hydrocyclone is used; while from gas, a gas cyclone is used.
Sand separation and classification Hydrocyclones used for sand separation and classification and as a separator of sand from water or sludge [1] Oil-water separation: Separation of oil and water in, among other things, the offshore industry; Dewatering: Concentration of slurry and dewater sludge for disposal [2] [3]
Dissolved air flotation (DAF) is a water treatment process that clarifies wastewaters (or other waters) by the removal of suspended matter such as oil or solids. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank basin. The released air forms ...
Two early examples of scientifically designed bioswales for large scale applications are found in the western US. In 1996, for Willamette River Park in Portland, Oregon , a total of 2330 lineal feet of bioswale was designed and installed to capture and prevent pollutant runoff from entering the Willamette River .