Chemical amelioration of nepheline sands using sewage sludge from a regional wastewater treatment plant
The studies on the use of municipal wastewater sludge as an unconventional chemical ameliorant with a fertilizing effect were carried out on ore dressing waste ("tailings") of the apatite-nepheline plant ANOF-2 KF JSC "Apatit" with a predominance of nepheline sands in their composition.The tailings dump is included in the list of objects of Gels ac