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Pulmonary aspiration is the entry of solid or liquid material such as pharyngeal secretions, food, drink, or stomach contents from the oropharynx or gastrointestinal tract, into the trachea and lungs. [1] When pulmonary aspiration occurs during eating and drinking, the aspirated material is often colloquially referred to as "going down the ...
Production flaring (image centre) at a rural crude oil extraction site in North Dakota. A night image from space that captures the widespread practice of routine flaring across southeast Texas. The broad arc of scattered lights extending up and left from the lower centre is defined by hundreds of gas flares from rural oil wells in the Eagle ...
Industrial Extraction is the process by which harmful air contaminants are removed from the work place for the protection of employees and the environment. [1]In the UK, the Health and Safety Executive has implemented COSHH regulations to ensure all industrial workplaces protect the health of their employees via effective Local Exhaust Ventilation (LEV). [2]
Inert gas pipe on an oil tanker An inert gas is a gas that does not readily undergo chemical reactions with other chemical substances and therefore does not readily form chemical compounds . Though inert gases have a variety of applications, they are generally used to prevent unwanted chemical reactions with the oxygen ( oxidation ) and ...
Animated sequence of how a bore evacuator works. A bore evacuator. A bore evacuator or fume extractor is a device which removes lingering gases and airborne residues from the barrel of an armored fighting vehicle's gun after firing, particularly in tanks and self-propelled guns.
Soil vapor extraction (SVE) is a physical treatment process for in situ remediation of volatile contaminants in vadose zone (unsaturated) soils (EPA, 2012). SVE (also referred to as in situ soil venting or vacuum extraction) is based on mass transfer of contaminant from the solid (sorbed) and liquid (aqueous or non-aqueous) phases into the gas phase, with subsequent collection of the gas phase ...
The two liquids (typically an aqueous phase (heavy) and an organic phase (light)) enter the annular mixing zone where a liquid-liquid dispersion is formed and extraction occurs as solutes (e.g. dissolved metal ions) are transferred from one phase into the other. Inside the rotor, the liquids will be separated into a heavy (blue) and a light ...
C + 2 H 2 SO 4 → CO 2 + 2 SO 2 + 2 H 2 O S + 2 H 2 SO 4 → 3 SO 2 + 2 H 2 O. Catalysts like selenium, Hg 2 SO 4 or CuSO 4 are often added to make the digestion go faster. Na 2 SO 4 or K 2 SO 4 is also added to increase the boiling point of H 2 SO 4. Digestion is complete when the liquor clarifies with the release of fumes. [3] A distillation ...