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Table 2

Efficiency of the helophyte mat as a function of the hydraulic load per unit area

Hydraulic load per unit area [L m2 d1]COD
BOD5
TN
TP
Concentrationa [mg L1]
Efficiencyb [%]Concentration [mg L1]
Efficiency [%]Concentration [mg L1]
Efficiency %Concentration [mg L1]
Efficiency [%]
InflowOutflowInflowOutflowInflowOutflowInflowOutflow
10 (n = 6) 635.2 69.1 93.5 393.3 10.6 98.9 16.7 1.2 96.2 1.2 0.4 77.6 
15 (n = 9) 1,115 61.3 94.7 407.7 5.9 98.2 16.3 1.1 95.2 2.6 0.3 88.0 
Hydraulic load per unit area [L m2 d1]COD
BOD5
TN
TP
Concentrationa [mg L1]
Efficiencyb [%]Concentration [mg L1]
Efficiency [%]Concentration [mg L1]
Efficiency %Concentration [mg L1]
Efficiency [%]
InflowOutflowInflowOutflowInflowOutflowInflowOutflow
10 (n = 6) 635.2 69.1 93.5 393.3 10.6 98.9 16.7 1.2 96.2 1.2 0.4 77.6 
15 (n = 9) 1,115 61.3 94.7 407.7 5.9 98.2 16.3 1.1 95.2 2.6 0.3 88.0 

aAverage.

bAverage efficiency, calculated on the basis of the loading rate [g m−2].

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