DEVICE FOR SUPPLYING NITRIFICATION BACTERIA IN BIOLOGICAL ACTIVATED CARBON TREATMENT TOWER

• Main Authors: TSUKURA HIROSHI, TSUKITARI KEIICHI
• Format: Patent
• Language: English
• Published: 09.07.1993
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PURPOSE:To provide the device which enables early starting of a biological activated carbon treatment tower utilized for purifying treatment of water and also performs excellent treatment in removal performance of trace organic substance or the like and removal performance of ammoniac nitrogen. CONSTITUTION:A biological activated carbon treatment tower 2 packed with a granular activated carbon 3 is provided. Separately a nitrification bacterial culture tank 4 is provided. Moreover a mechanism for supplying oxygen to nitrification bacteria 6 in the tank and an agitating mechanism are equipped in the nitrification bacteria culture tank 4. Furthermore a device for supplying nitrification bacteria is equipped with both a return system 11 for feeding one part of granular activated carbon 3 to the culture tank 4 from the treatment tower 2 and a supply system 12 for feeding granular activated carbon 3 deposited with cultured nitrification bacteria 6 to the treatment tower 2 from the culture tank 4.