To make phosphoric acid for fertilizer and a few other uses, phosphate rock is dissolved in sulfuric acid. In fertilizer, phosphorus is important for plants to grow strong roots and for crops to be productive. What is phosphogypsum and why is there so much of it? The Republican-dominated Florida Legislature had approved the measure by a wide margin. HB 1191 compels the Florida Transportation Department to conduct "demonstration projects using phosphogypsum in road construction aggregate material to determine its feasibility as a paving material," as it studies using phosphogypsum in roads.įlorida's transportation agency now has less than a year to complete a study and make a recommendation the bill sets a deadline of April 1, 2024.īennett criticized the plan, saying that under the new law, radioactive waste would be dumped in roadways "under the guise of a so-called feasibility study that won't address serious health and safety concerns."ĭeSantis signed the bill into law several days after formally receiving it.
In recent years industrial byproducts and reclaimed materials also have been used as aggregates, according to the Federal Highway Administration. The new law looks to clear the way for phosphogypsum to be used as a pavement aggregate alongside crushed stone, gravel, sand and other materials.
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