| 摘要 |
A fertiliser and mineralisation product for adding to an ecological cycle is based on by-product and waste materials such as biofuel ash, biosludge, natural fertiliser or abattoir waste; and fly ash (generated by burning biofuel) with the cadmium content reduced by at least 70 % so that the cadmium content in the product is less than 2 (1.5) ppm. - The preparation of this product is also claimed. In the preparation, the cadmium is removed from the fly ash by heating using burning wood or bark charcoal. |
