Variable

Parameters

SS

BOD5

COD

$N-N{H}_4^{+}$

$P-P{O}_4^{3-}$

FC

Matériau filtrant (FV1a, FV1b, FV1c) (flint, granite, flint + river gravel)

S

S

S

S

S

Depth of Filter Media (FV2a, FV2b) (70 cm, 90 cm off sand)

Plant Species

S

S

S

S

S