Glossary
BOD5
Biochemical Oxygen Demand (measured in a five-day bottle test at 200C for the oxidation of organic material in a wastewater by aerobic bacteria). BOD5 is used in expressions of waste quantity (e.g, gBOD5), waste concentration (e.g., gBOD5/m3), and waste lending rate (e.g., gBOD5/m3/day; gBOD5/m2/day).
Ammonia-N
Nitrogen occurring in the form of NH4+ and NH3 in a wastewater.
PAR
Photosynthetic Apparent Radiation - light in the wavelength band absorbed by plant photosynthetic pigments (measured as photon flux density).
DO
Dissolved Oxygen - the concentration of oxygen dissolved in water, expressed as mg/L or g/m3 (numerically the same)
AWM
"Agricultural Waste Manual". NZ Agriculture Engineering Institute, Project Report No 32, 1984.
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