| 摘要 |
<p>A biofilter has a plurality of filter elements each of which has a filter medium of fragmented plastic, preferably waste plastic. The fragmented plastic has an inherent curvature to maintain adjacent surfaces of the fragment plastic in spaced relationship. The filter elements are arranged in filter modules in series with the effluent flow with the longitudinal axes of filter elements of adjacent filter modules disposed orthogonally.</p> |
