De Nitrification
De Nitrification
De Nitrification
1 ANOXIC TANK
As Per Metclaff & Eddy
Waste water Characteristices
COD 350.00 mg/Lt
BOD 250.00 mg/Lt
TDS 100.00 mg/Lt
TSS 375.00 mg/Lt
pH 5.5 - 9.0 As Per Guide Lines
Rb COD 80.00
NOX 28.30
TP 6.00
Alkalinity 140 as CACO3
Dixolved Oxyzen 0.20 mg/l
Design Conditions
Influent Flow rate 900.00 cum/day
Temperature 15.00
MLSS 4500.00 g/cum
MLVSS 3000.00 g/cum
Aerobic SRT 12.50
Aeration basin volume
Mixing Energy 10.00 kw/cum
RAS ratio 0.60
Ra 255.00 kg/h
Xb 2049.59 g/cum
t 0.104 d
7.81 Cum
13.33 Percent
Oxygen requiered
2.66 kg/h
Volume 7.81
Power 0.08 KW
Depth 2.50 m
Width 3.20 m
Length 2.50 m
Mixing power for Anoxic Zone 3 watt/m2 -8 watt/m2 ( Metclaf& Eddy, Fifth Edition , Vol , pg=
(proposed mixing intensity at Anoxic zone for complete mixing)
The selection of mixer shall also refering to the thrust which refering to the geometry of the tank.