| 摘要 |
A contamination barrier comprises a blanket having at least one biofilm layer 1 (upper layer) attached to a support layer 3 (reinforcing layer). Preferably, the bioflim layer is attached to or into the support layer by stitching 4. The biofilm layer may comprise vermiculite, zeolite, sand, fertiliser, glucose, sucrose, lime, or an organic material such as coir. The biofilm layer is intended to allow a biofilm to grow, which is able to degrade contaminants as they pass with groundwater through soil. A netting layer may be interposed between the bioflim layer and the support layer. A further layer 2 (lower layer) may be included, which may contain carbon, activated carbon, glucose, or sucrose. |
