| 摘要 |
<p>A root zone plant for the purification of contaminated water comprises a mass 3 of a growth culture medium such as soil planted with marsh plants 4. Contaminated water is supplied to the soil 3 through a shingle 5 at one end of the plant and purified water is discharged at the other end through a further shingle filling 6 and a drain pipe 7. The soil is positioned in an upwardly open movable container 1,2 whereby the plant need only be placed in its position of use once the marsh plants have grown to the required size. <IMAGE></p> |
