Wastewater, Volumes and Composition
Analysis parameters
Symbol
Unit 3 l
Wastewater type
Concentrated
Moderate
Diluted
Very diluted
Total nitrogen
CTN
gN/m 3
80
50
30
20
Ammonia nitrogen I)
SNH4
gN/m 3
50
30
18
12
Nitrite nitrogen
SNm
gN/m 3
0.1
0.1
0.1
0.1
Nitrate nitrogen
SN03
gN/m 3
0.5
0.5
0.5
0.5
Organic nitrogen
Co.g.N
gN/m 3
30
20
12
8
Kjeldahl nitrogen 2 )
CTKN
gN/m 3
80
50
30
20
Total phosphorous
Crr
gP/m 3
23 (14) 4 )
16 (10)
10 (6)
6 (4)
Orthophosphate
SP04
gP/m 3
14 (10)
10 (7)
6 (4)
4
(3)
Polyphosphate
Sp-P
gP/m 3
5 (0)
3 (0)
2 (0)
1
(0)
Organic phosphate
Corg.P
gP/m 3
4 (4)
3 (3)
2 (2)
1 (1)
I) Nlh+NH!
2) org.N + Nih + NHl
3) g/m 3 = mg/1 =ppm
4) figures in parenthesis for catchment areas where detergent without phosphate is used
Table 1.8
Typical content of nutrients in domestic wastewater. Based on /17/, /25/, /26/.
Analysis parameter
Symbol Unit 1 l
Wastewater type
Concentrated
Moderate
Diluted
Very diluted
Aluminium
CAI
mgAl/m 3
1000
650
400
250
Arsenic
CAs
mgAs/m 3
5
3
2
1
Cadmium
Ccd
mgCd/m 3
4
2
2
1
Chromium
Ccr
mgCr/m 3
40
25
15
10
Cobalt
Ceo
mgCo/m 3
2
1
1
0.5
Copper
Ccu
mgCu/m 3
100
70
40
30
Iron
CFe
mgFe/m 3
1500
1000
600
400
Lead
CPb
mgPb/m 3
80
65
30
25
Manganese
CMn
mgMn/m 3
150
100
60
40
Mercury
CHg
mgHg/m 3
3
2
1
1
Nickel
CNi
mgNi/m 3
40
25
15
10
Silver
CAg
mgAg/m 3
10
7
4
3
Zinc
CZn
mg'Zn/m 3
300
200
130
80
I) mg/m 3 = ~Lg/1 = ppb
Table 1.9
Typical content of metals in domestic wastewater, data for example from /17 I.
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