In this regard, this study represents a significant advance in the field of municipal wastewater treatment by CW, since it is focused on the use of tropical ornamental plants and alternative filter materials in a large-scale CW. It should be noted that this study is based on previous research...
This is not necessarily the case in oak barrels, where sample extracts can be derived by treating barrels with boiling water as a general quality control test (sealing integrity test). Even in this case, however, determination by chromatography or electrochemical biosensors (according to the ...