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Treatment processes to recover nutrients from urine

Bastian Etter – Project Coordinator VUNA

Urine

2

Water

99%

H2O

Urine

3

Macro-Nutrients

Nitrogen

Phosphorus

Potassium

NutrientsWater

99%N

P

KH2O

Urine

4

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

11

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

14

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

17

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

Nutrients

Energy

Complexity

Safety

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