Alum pellets

   
   

Compositions including pellets of alum, a smectite mineral material, and optionally sodium or calcium carbonate, that can be delivered to a phosphate impoundment located at or near the bottom of a body of water. The pellets of alum, smectite mineral material and optionally sodium or calcium carbonate are dropped in a body of water, and the alum is released over time, as the pellet descends to the bottom of the body of water.

Составы включая лепешки квасцов, материала smectite минерального, и опционно карбоната натрия или кальция, которые можно поставить к impoundment фосфата размещали на или почти дне водного массива. Лепешки квасцов, материала smectite минеральных и опционно натрия или карбоната кальция упадены в водный массив, и квасцы выпущены над временем, по мере того как лепешка спускает к дну водного массива.

 
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