127
6. Demande biochimique en oxygène (DCO)
ECH1 ECH2 ECH3 ECH4 ECH5 ECH6 ECH7 ECH8
Amont
(mg/l)
201
283
189
213
210
250
217
221
(g/t)
32.16
65.09
15.12
29.82
33.6
52.5
17.36
26.52
Aval foin
(mg/l)
193
187
182
180
171
185
191
193
(g/t)
30.88
43.01
14.56
25.2
27.36
38.85
15.28
23.16
Aval
anthracite
(mg/l)
120
123
153
120
121
139
141
151
(g/t)
19.2
28.29
12.24
16.8
19.36
29.19
11.28
18.12
Rendement d’élimination (%)
ECH1 ECH2 ECH3 ECH4 ECH5 ECH6 ECH7 ECH8
Aval foin
3.98 33.92 3.71
15.5 18.57
26
11.98 12.67
Aval
anthracite
40.3 56.54 19.05 43.66 42.38 44.4 35.02 31.67
7. Hydrocarbures (HC)
Rendement d’élimination (%)
ECH1 ECH2 ECH3 ECH4 ECH5 ECH6 ECH7 ECH8
Aval foin
48.69 54.73 55.53 44.86 42.1 36.83 51.06 38.93
Aval
anthracite
81.44 78.19 77.61 70.43 63.2 67.68 77.02 78.59
ECH1 ECH2 ECH3 ECH4 ECH5 ECH6 ECH7 ECH8
Amont
(mg/l) 28.12
33.33
29.75
32.19
21.089
28.86
26.54 20.73
(g/t)
4.49
7.66
2.38
4.506
3.374
6.06
2.12
2.48
Aval foin
(mg/l) 14.43
15.09
13.23
17.75
12.21
18.23
12.99 12.66
(g/t)
2.30
3.47
1.058
2.48
1.95
3.82
1.039
1.51
Aval
anthracite
(mg/l) 5.22
7.27
6.66
9.52
7.76
9.33
6.1
4.439
(g/t)
0.83
1.67
0.53
1.33
1.24
1.96
0.48
0.53