| 摘要 |
The present application refer to a soil or soil improving product and a method of producing it. The soil or soil improving product consists of sludge from sewage treatment plants and ash from coal firing or trash burning. In order to produce the product the sludge and the ash are first mixed, e.g. by means of a wheel-mounted loader or a mixing screw. Subsequently, the mixture is allowed to rest and mature during several weeks in order to have the sludge absorbed by the ash. Finally, the mixture is treated in a special soil mill in order to obtain an optimal homogeneous product. |
