| abstract |
A wastewater treatment system and method utilising emergent aquatic plants wherein the plants (48, 68, 26) are planted in a porous substrate (41, 72, 28) enclosed by a water impervious boundary (44, 74, 80). The roots of the plants extend into the substratum to form a root zone. An inlet means (50, 76, 82) is arranged such that wastewater enters the system below the rootzone and flows upwardly through the substratum. The wastewater is removed by outlet means (60, 86) located adjacent the rootzone. |