Resumen
Fertilizer composed of cement between 25 and 75% by weight and organic matter between 25 and 75% by weight. The fertilizer is composed of cement of addition or common cement (cement of low resistance) and organic matter, coming from sewage sludge from wastewater treatment plants, sludge from treatment plants for drinking water, organic waste from urban solid waste treatment plants, organic waste from livestock, organic waste from agriculture, compost or peat. The fertilizer may contain additives between 0.01 and 10% by weight: fly ash combustión from thermal power plants, solid combustión ash from thermal power plants, blast furnace slag, steel slag, slaked lime, quarry waste, waste from crushing plants and waste from asphalt agglomerate manufacturing plants. (Machine-translation by Google Translate, not legally binding)