314
G. Söderlund
TABLE 4
Discharges from urban storm-water run-off,
treated effluent and storm-water overflow. Kg/ha in 600 hours.
35p/ha
50p/ha
100p/ha
Parameter
SW
SWO
WW
SW
SWO
WW
SW
SWO WW
TSS
BOD
Ptot
Ntot
173
14
0.04
1.4
9.6
9.6
0.5
1.7
7
7
0.4
9
220
13
0.1
1.8
14
14
0.8
2.4
9
9
0.5
12
620
43
0.2
3.5
27
27
1.5
4.8
19
19
1
25
Coli35°
3.7Ί0
11 1.8·10
10 1.8·10
12
9.2Ί0
1 1 5 1 0
1 0
510
1 2
Coli44°
l J - l O ^ l . ^ l O ^ l . ^ l O
1 2
4.2-10
11 4 Ί 0
1 0
4 Ί 0
1 2
SW = Storm-water Run-off
WW = Treated Sanitary Wastewater
SWO = Storm-water Overflow (calculated to be 1% of the years flow of sanitary wastewater)