One official describes the river as a " sewage drain " with biochemical oxygen demand ( BOD ) values ranging from 14 to 28 mg / l and high coliform content.
32.
Oxygen is bubbled through the mixture of wastewater and activated sludge to reduce the organic matter ( measured as biochemical oxygen demand ( BOD ) and chemical oxygen demand ( COD ) ).
33.
To determine five-day biochemical oxygen demand ( BOD 5 ), several dilutions of a sample are analyzed for dissolved oxygen before and after a five-day incubation period at 20 �C in the dark.
34.
The amount of oxygen required to completely oxidize the organic compounds to carbon dioxide and water through generations of microbial growth, death, decay, and cannibalism is total biochemical oxygen demand ( total BOD ).
35.
The researchers attributed Frame's high biochemical oxygen demand and " peculiar chemical characteristics " to not only the proximity of downtown but the city's use of the lake as a dump for plowed snow.
36.
In 2007 the Arakawa River tied with six other rivers for having the best quality river water in country based on biochemical oxygen demand tests conducted by the Ministry of Land, Infrastructure, Transport and Tourism.
37.
Measurements of water quality at the Landfill Road site during the years covered by the DEQ report showed high concentrations of phosphates, ammonia and nitrates, fecal coliform bacteria, and suspended solids, and a high biochemical oxygen demand.
38.
The company also manufactures a BOD ( Biochemical Oxygen Demand ) bottle that is popular in the international market, as well as glass scintillation vials and a wide variety of glass and plastic rigid containers and closures.
39.
A reduction in deep-water circulation will eventually lead to a serious decrease in deep-water oxygen concentrations due to biochemical oxygen demand associated with the decay of organic matter that sinks into the deep-sea as a result of export production from surface waters.
40.
The Royal Commission on Sewage Disposal published its eighth report in 1912 that set what became the international standard for sewage discharge into rivers; the'20 : 30 standard', which allowed 20 mg Biochemical oxygen demand and 30 mg suspended solid per litre.
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