Nitrate-containing nitrogen-treated material containing denitrifying bacteria and method for producing the same

摘要

PPROBLEM TO BE SOLVED: To provide a nitrate nitrogen treatment material excellent in a denitrification capacity which exhibits the denitrification capacity without installing a process for culturing and carrying denitrifying bacteria including autotrophic sulfur oxidizing denitrifying bacteria, and can cope with a temporary change in environment, such as water quality and flow rate. PSOLUTION: In the nitrate nitrogen treatment material used for denitrifying nitrate nitrogen in water by biological treatment using the denitrifying bacteria and made by integrating carbonate powder and sulfur powder with a binder, the denitrifying bacteria is made to exist therein beforehand. It is favorable to use sludge generated from sulfur denitrification treatment using the nitrate nitrogen treatment material as a denitrifying bacteria-containing material. PCOPYRIGHT: (C)2006,JPO&NCIPI