Table 3 Assumed characteristics of molasses’ vinasse from Metahara Ethanol production plant, Ethiopia [16]
From: Cultivation of microalgae for biofuel production: coupling with sugarcane-processing factories
Parameter | Value |
|---|---|
pH | 4.10–5.00 |
Temperature (°C) | 80–100 |
BOD (mg O2/L) | 25,000 |
COD (mg O2/L) | 65,000 (range 50,000–150,000) |
Total solids (mg/L) | 81,500 |
Free solids (mg/L) | 60,000 |
Fixed solids (mg/L) | 21,500 |
TN (mg N/L) | 1000 (450–1610) |
TP (mg P2O5/L) | 150 (100–290) |
Potassium (mg K2O/L) | 3740–7830 |
Calcium (mg CaO/L) | 450–5180 |
Magnesium (mg MgO/L) | 420–1520 |
Sulphate (mg SO4/L) | 6400 |
Carbon (mg C/L) | 11200–22,900 |
C/N ratio (mass ratio) | 16–16.27 |
Organic material (mg/L) | 63,400 |
Reducing substances (mg/L) | 9500 |
Total vinasse flow rate (m3/day)a | 396 |