MICROORGANISM STUCK CARRIER AND WASTE WATER TREATMENT METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a microorganism stuck carrier which is capable of sufficiently holding microorganisms for a long period of time and a waste water treatment method using the same. SOLUTION: The microorganism stuck carrier is obtained by a method including a process step of obtaining a product consisting of a nitrogenized carbonaceous material by heating the carbonaceous material in the presence of ammonia or an ammonium salt and a process step of sticking microorganisms to this product. According to this method, the product of the first process step has a cationic property and therefore the anionic microorganism can be sufficiently held by the electrical attraction thereof. Since the product is chemically stable, the elution of a cationic group from the product does not occur and the cationic group exists on a fresh surface in spite of the wear and annihilation of the outside surface of the product. The holding of the microorganisms for the long period of time is therefore made possible.