BIOCHEMICAL METHODS OF ANALYSIS, BIOCHEMICALS, BIOCHEMISTRY, EFFLUENTS(SEWAGE), MILLS, OXYGEN DEMAND, PAPER, PAPER PULP, PAPER TECHNOLOGY, TESTEQUIPMENT, TESTING, TRADE EFFLUENTS
适用范围
1.1
This method determines the oxygen-depleting capacity of effluent or water. It
is indirectly a measure of the organic concentration, but since only part of
the organic material is oxidized biochemically, it does not measure total
organic concentration. 1.2
This BOD method is based on a five-day period of oxidation at 20°C including
the immediate oxygen demand. 1.3
This method applies to all types of waters and wastewaters providing there is
nothing to inhibit or prevent oxidation by the micro-organisms. BOD results
depend on having a viable seed culture of micro-organism acclimatized to
metabolize the sample. Failure to provide this seed culture will adversely
affect the results even if all other items of procedure have been closely
followed.