Definitions related to biodegradation testing

DEFINITIONS RELATED TO BIODEGRADATION TESTING Activated sludge (ISO 14851) [Pg.113]

Biomass produced in the aerobic treatment of waste water by the growth of bacteria and other microorganisms in the presence of dissolved oxygen. [Pg.113]

Vermiculite colonized by an active microbial population during a preliminary growth phase. Biochemical oxygen demand (BOD) (ISO 14851) [Pg.113]

The mass concentration of the dissolved oxygen consumed under specified conditions the aerobic biological oxidation of a chemical compound or organic matter in water, expressed as milligrams of oxygen uptake per milligram or gram of test compound. [Pg.113]

measured in days, from the end of the lag phase of a test until about 90% of the maximum level of biodegradation has been reached. [Pg.113]

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