Table 3 Metal to P mass ratio in studied wastes
From: Phosphorus in waste sources in Southern Vietnam: potential for recovery
Mass ratio (mg mg-1) | Waste | |||||
|---|---|---|---|---|---|---|
Pig manure | Catfish sediment | Cattle manure | Sludge of DWWTP | Bio-sludge of RWWTP | Che-sludge of RWWTP | |
Fe to P | 1.01 | 8.27 | 0.24 | 0.9 | 0.17 | 0.55 |
Al to P | 0 | 0.18 | 0 | 0.57 | 0.29 | 0.88 |
Ca to P | 4.97 | 1.48 | 4.41 | 1.48 | 1.16 | 1.6 |