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BOD test bottles at the laboratory of a wastewater treatment plant. Biochemical oxygen demand (also known as BOD or biological oxygen demand) is an analytical parameter representing the amount of dissolved oxygen (DO) consumed by aerobic bacteria growing on the organic material present in a water sample at a specific temperature over a specific time period.
BOD Bottle BOD test bottles at the laboratory of a wastewater treatment plant. BOD Bottle or an incubation bottle is a main apparatus used for the Biological Oxygen Demand (BOD) test. During the five-day BOD or BOD5 test process, the BOD bottle is used for incubating diluted samples under the 20 °C or 68 °F of temperature.
Founded in 1980 and based in Rome, Italy, COSMED started manufacturing portable spirometers and pulmonary function testing equipment. In the nineties, the company introduced new systems for gas exchange measurements and patented the first portable system with telemetric data transmission for the measurement of metabolic parameters during field-testing.
The Sarco pod (also known as Pegasos, and sometimes referred to as a "suicide pod" [1]) is a euthanasia device or machine consisting of a 3D-printed detachable capsule mounted on a stand that contains a canister of liquid nitrogen to die by suicide through inert gas asphyxiation. "Sarco" is short for "sarcophagus".
The reactions take place by the joint participation of several microorganisms living within the pond. The organic matter is measured as biochemical oxygen demand (BOD). BOD values in the pond effluent are lower than in the influent, reflecting the removal of organic matter. This pond biome uses organic matter from the wastewater as food.
A body broker (also non-transplant tissue banks) is a firm or an individual that buys and sells cadavers or human body parts. Whereas the market for organ transplantation is heavily regulated in the United States, the use of cadaver parts for research, training, and other uses is not.
Anaerobic digestion is widely used as a source of renewable energy. The process produces a biogas, consisting of methane, carbon dioxide, and traces of other 'contaminant' gases. [1] This biogas can be used directly as fuel, in combined heat and power gas engines [9] or upgraded to natural gas-quality biomethane.
Pod and cabin designs utilize enclosures with doors to enter or exit the tank, whereas pool designs are built from circular fiberglass and lack an enclosure to reduce the risk of claustrophobia. The pool design is housed in a room that is soundproof and lightproof, with tightly controlled ambient air temperature and humidity.