THE MANUFACTURING PROCESS OF LANDFILL COVER SOIL FROM WASTEWATER SLUDGE UTILIZING CARBONIZED RICE HUSKS

摘要

PURPOSE: A method for manufacturing covering soil based on sewage sludge using carbonized chaff is provided to reduce ammonical bad odor generated from a mixing and curing process with respect to sewage sludge and a solidifying material. CONSTITUTION: A method for manufacturing covering soil based on sewage sludge using carbonized chaff includes the following: 10 to 20 parts by weight of carbonized chaff powder is mixed with sewage sludge as a first additive. 5 to 10 parts by weight of phosphatic gypsum is further added as a second additive. 5 to 10 parts by weight of unslaked lime is further added as a third additive. 7 to 10 parts by weight of phosphoric acid is further added as a fourth additive. Mixing and curing processes are followed.