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www.vuna.ch
Treatment processes to recover nutrients from urine
Bastian Etter – Project Coordinator VUNA
Macro-Nutrients
Nitrogen Calcium
Phosphorus Magnesium
Potassium Sulphur
NutrientsWater
99%N Ca
Mg
S
P
KH2O
Urine
5
Macro-Nutrients
Nitrogen Calcium Iron Molybdenum
Phosphorus Magnesium Manganese Zinc
Potassium Sulphur Boron Copper
Micro-NutrientsNutrientsWater
99%N FeCa Mo
Mg Zn
S Cu
P Mn
K BH2O
Urine
6
Macro-Nutrients
Nitrogen Calcium Iron MolybdenumBulk organics
Sodium chloride
Phosphorus Magnesium Manganese Zinc
Potassium Sulphur Boron Copper
Micro-NutrientsNutrientsWater
99%Other Substances
N FeCa Mo
Mg Zn
S Cu
P Mn
K BH2O
CC
C
SALT
Urine
7
Macro-Nutrients
Nitrogen Calcium Iron MolybdenumBulk organics Micro-pollutants
Sodium chloride Pathogens
Phosphorus Magnesium Manganese Zinc
Potassium Sulphur Boron Copper
Micro-NutrientsNutrientsWater
99%Other Substances
N FeCa Mo
Mg Zn
S Cu
P Mn
K BH2O
CC
C
SALT
Urine
8
Macro-Nutrients
Nitrogen Calcium Iron MolybdenumBulk organics Micro-pollutants
Sodium chloride Pathogens
Phosphorus Magnesium Manganese Zinc
Potassium Sulphur Boron Copper
Micro-NutrientsNutrientsWater Other Substances
N FeCa Mo
Mg Zn
S Cu
P Mn
K BH2O
CC
C
SALT
Urine
9
Treatment processes to recover nutrients from urine
Struvite Precipitation
Nitrification & Distillation
Electrolysis10
Macro-Nutrients
Nitrogen Calcium Iron MolybdenumBulk organics Micro-pollutants
Sodium chloride Pathogens
Phosphorus Magnesium Manganese Zinc
Potassium Sulphur Boron Copper
Micro-NutrientsNutrientsWater Other Substances
N FeCa Mo
Mg Zn
S Cu
P Mn
K BH2O
CC
C
SALT
Struvite 12
Macro-Nutrients
Nitrogen Calcium Iron MolybdenumBulk organics Micro-pollutants
Sodium chloride Pathogens
Phosphorus Magnesium Manganese Zinc
Potassium Sulphur Boron Copper
Micro-NutrientsNutrientsWater Other Substances
N FeCa Mo
Mg Zn
S Cu
P Mn
K BH2O
CC
C
SALT
Struvite Effluent 13
Macro-Nutrients
Nitrogen Calcium Iron MolybdenumBulk organics Micro-pollutants
Sodium chloride Pathogens
Phosphorus Magnesium Manganese Zinc
Potassium Sulphur Boron Copper
Micro-NutrientsNutrientsWater Other Substances
N FeCa Mo
Mg Zn
S Cu
P Mn
K BH2O
CC
C
SALT
Nitrification/Distillation 15
Macro-Nutrients
Nitrogen Calcium Iron MolybdenumBulk organics Micro-pollutants
Sodium chloride Pathogens
Phosphorus Magnesium Manganese Zinc
Potassium Sulphur Boron Copper
Micro-NutrientsNutrientsWater Other Substances
N FeCa Mo
Mg Zn
S Cu
P Mn
K BH2O
CC
C
SALT
Nitrification/DistillationDistilled Water 16
Macro-Nutrients
Nitrogen Calcium Iron MolybdenumBulk organics Micro-pollutants
Sodium chloride Pathogens
Phosphorus Magnesium Manganese Zinc
Potassium Sulphur Boron Copper
Micro-NutrientsNutrientsWater Other Substances
N FeCa Mo
Mg Zn
S Cu
P Mn
K BH2O
CC
C
SALT
Electrolysis 18
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