The nutrient and water use associated with one person

Wastewater plant
Urine
Faeces
Grey water
before

purification

after

purification

Volume (l*pers-1*day-1)
1,12
0,15
199
397
396
N (g*pers-1*day-1)
11,0
1,5
1,0
13,5
10,2
P (g*pers-1*day-1)
1,0
0,5
0,6
2,1
0,1
Volume (l*pers-1*year-1)
409
56
65 386
145 023 
144 658 
N (kg*pers-1*year-1)
4,0
0,6
0,4
4,9
(25%) 3,7
P (kg*pers-1*year-1)
0,4
0,2
0,2
0,8
0,1
N-conc (mg/l)
9 810 
9 811 
5,0
34,0
(25%) 25,6
P-conc.,(mg/l)
892 
3 270 
3,0
5,3
0,4
N/P-ratio
11
3
2
6
72
Notes
Primary

sterile

Possible pathogen content. High dry mass.
Low concen-tration of pollutants
Input of water from other sources
Risk for viral pathogens and nitrogen pollution