Using a proprietary matrix encapsulation technique, active ingredients are incorporated into a matrix made from a biodegradable polymer. Pesticides, biocides, corrosion inhibitors, enzymes, and bacteria are just some of the examples of the kinds of actives that can be encapsulated. Then the polymer is formed into tablets of various shapes and sizes. Each tablet can deliver its active ingredients into the environment over a predetermined time frame, with precisely controlled dosages to ensure the desired treatment effects. At the end of the treatment period the matrix is completely and safely degraded.