| 摘要 |
A catch basin has a catch basin insert containing a water-soluble water treatment additive. The insert is made from a porous shell, which is segmented into individual pouches. Each pouch has an opening that can be opened and closed repeatedly to re-fill the water treatment additive. Adjacent pouches are separated by a strip of insert material to permit cutting the insert to a desired length. The water-soluble water treatment additive can be chitosan. Water treated with the additive is flocculated and removed in a filter.
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