Evaluation of Bioassays and Wastewater Quality ... - Oekotoxzentrum
Evaluation of Bioassays and Wastewater Quality ... - Oekotoxzentrum
Evaluation of Bioassays and Wastewater Quality ... - Oekotoxzentrum
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Table 17: Pseudokirchneriella subcapitata growth inhibition without nutrient addition after 3 d: EC50 [%] (95% confidence interval in brackets) <strong>and</strong> change<br />
index (CI) for the respective treatment steps.<br />
EN Entrée STEP, SB Sortie biologie, LF Lit fluidisé, OZ Sortie O3, CAG Sortie charbon actif granulé, SF Sortie filtre à sable, PAC-UF Sortie charbon actif en<br />
poudre - Ultrafiltration. n.t. not toxic, n.m. not measured. If e.g. only the influent sample was toxic, a surrogate EC50 <strong>of</strong> 110% (as the “real” value is >100%)<br />
was used for the not toxic samples in order to be able to calculate a change index.<br />
Date<br />
Ozone<br />
dosage<br />
-1<br />
(gO3 gDOC )<br />
PAC conc.<br />
(mg PAC/L<br />
wastewater)<br />
EN<br />
SB (1 st MC)<br />
LF (2 nd - 4 th MC)<br />
Effect<br />
Biology<br />
Swiss Centre for Applied Ecotoxicology, Eawag/EPFL · Überl<strong>and</strong>strasse 133 · CH-8600 Dübendorf www.oekotoxzentrum.ch<br />
OZ<br />
Effect<br />
OZ<br />
CAG (1 st , 2 nd MC)<br />
SF (3 rd ,4 th MC<br />
Effect<br />
OZ + SF<br />
20.-27.07.09 0.5 No PAC 84 85.4 1.02 79.3 0.93 77.7 0.91 n.m. -<br />
(71.8-142) (81-92.3) (75.2-83.8) (74.5-81.4)<br />
30.10.-05.11.09 0.7 10 (Norit) 73.9 57.6 0.78 57.8 1.00 63.9 1.11 53.7 0.93<br />
(61.2-81.5) (54.3-60) (54.6-60.2) (61.8-65.9) (51.7-55.4)<br />
10.-17.03.10 0.8 12 (Sorbopor) 72.47 79.96 1.10 77.63 0.97 78.43 0.98 72.19 0.90<br />
(65.0-75.9) (79.0-80.9) (73.9-79.5) (76.8-79.9) (70.8-73.6)<br />
26.05.-02.06.10 0.11 20 (Sorbopor) 82.62 91.5 1.11 86.77 0.95 81.6345 0.89 69.87 0.76<br />
(62.6->125) (87.3-163) (80.8-96.1) (74.1-84.6) (64.6-74.0)<br />
PAC-UF<br />
Effect<br />
PAC-UF<br />
Table 18: Pseudokirchneriella subcapitata growth inhibition with nutrient addition after 3 d: EC20 [%] (95% confidence interval in brackets) <strong>and</strong> change index<br />
(CI) for the respective treatment steps.<br />
EN Entrée STEP, SB Sortie biologie, LF Lit fluidisé, OZ Sortie O3, CAG Sortie charbon actif granulé, SF Sortie filtre à sable, PAC-UF Sortie charbon actif en<br />
poudre - Ultrafiltration. n.t. not toxic, n.m. not measured. If e.g. only the influent sample was toxic, a surrogate EC20 <strong>of</strong> 110% (as the “real” value is >100%) was<br />
used for the not toxic samples in order to be able to calculate a change index.<br />
Date<br />
Ozone<br />
dosage<br />
-1<br />
(gO3 gDOC )<br />
PAC conc.<br />
(mg PAC/L<br />
wastewater)<br />
EN<br />
SB (1 st MC)<br />
LF (2 nd - 4 th MC)<br />
Effect<br />
Biology<br />
OZ<br />
Effect<br />
OZ<br />
CAG (1 st , 2 nd<br />
MC)<br />
SF (3 rd ,4 th MC<br />
Effect<br />
OZ + SF<br />
20.-27.07.09 0.5 No PAC 76.7 n.t. 1.43 n.t. - 89.5 0.81 n.m. -<br />
(71.2-83.7) (85.9-115)<br />
30.10.-05.11.09 0.7 10 (Norit) 52.7 71.7 1.36 n.t. 1.53 n.t. 1.53 100 1.39<br />
(26.3-59.3) (61-83)<br />
10.-17.03.10 0.8 12 (Sorbopor) 48.06<br />
(18.9-60.4)<br />
n.t. 2.29 n.t. - n.t. - n.t. -<br />
26.05.-02.06.10 0.11 20 (Sorbopor) 62.98 n.t. 1.75 n.t. - 87.93 0.80 n.t. -<br />
(47.5-76.7) (66.5->125)<br />
PAC-UF<br />
Effect<br />
PAC-UF<br />
57
Change language