| 摘要 |
<p>Treating bird droppings to obtain a stable, homogeneous, deodorised, purified, product, free from ammonia, with a high fertiliser value, useful in agriculture, comprises mixing the bird droppings with calcium oxide (CaO) and/or calcium magnesium oxide (CaOMgO) or a mixture of these, in variable proportions, in a closed container. The resulting product has particles of less than 2 mm with a tolerance of 5%.</p> |
