CLEANING MATERIAL AND METHOD OF CLEANING WATER CONTAINING NITRATE-NITROGEN

摘要

PROBLEM TO BE SOLVED: To provide a cleaning material and a method of cleaning water containing nitrate-nitrogen which allows sulfur denitrification to proceed from the initial stage and can adequately clean water containing nitrate-nitrogen.SOLUTION: The cleaning material as a cleaning material for water containing nitrate-nitrogen contains dolomite and sulfur, wherein the amount of magnesium is more than 6.6 mass% and 8.8 mass% or less. The method of cleaning water containing nitrate-nitrogen using the cleaning material is also provided.