TABLE OF CONTENTS Pages Symposium 1 - the National Sea ...

Table 2. Water quality analyses were conducted according to standardized procedures from
the steady state sampling conducted for all experiments.
Parameter Analysis Procedure
Total Ammonia Nitrogen – (TAN) Distillation and Nesslerization- colorimetric
Nitrite Diazotization Method-colorimetric
Nitrate Mullin and Riley Reduction Method
Oxygen Winkler with Azide Modification Method
PH Orion Model 701A Digital Meter and Probe
Alkalinity Sulfuric acid Titration (Potentiometric and
colorimetric methods)
Biochemical Oxygen Demand
(5-Day)
Winkler and Azide modification/thiosulfate titration
Total Suspended Solids Vacuum filtration/drying oven 103-105 o C
Turbidity Turner Designs Nephelometer
Note: All procedures for Standard Methods (APHA, 1996)
Results
Volumetric Nitrification Rate
The actual nitrification performance was estimated by calculating the volumetric nitrification
capacity (VTR, in units of grams TAN converted per cubic meter of beads per day). This was
determined by measuring the influent TAN concentration (TANI in mg-N/L), the effluent
TAN concentration (TANE in mg-N/L) and the flow rate through the filter (Q in liters per
minute) and applying them into Equation 1:
1.440 ( TANI
- TANE)
Q
VTR =
(V)
where V is the volume of beads in the filter (meters 3 ), and 1.440 represents a conversion
factor correcting for the differences in units of various terms.
5
(1)