APPARATUS FOR ANAEROBICALLY TREATING UPWARD FLOW

• Main Authors: KUMAGAI KIYOMI, SATO MATSUKICHI, AKEGA HARUKI, NIWA HIRONORI
• Format: Patent
• Language: English
• Published: 09.02.1990
• 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 eliminate a dead space of a flow of raw water and to increase the rate of effective utilization of microorganisms by making the bottom of an anaerobic reaction vessel rugged and arranging raw water inflow holes at the valley parts of the rugged bottom CONSTITUTION:Blocks 10 having a triangular cross-section are arranged on both sides of each raw water inflow pipe 4 laid on the bottom. of an anaerobic reaction vessel 1 along the longitudinal direction of the pipe 4. Raw water flowing in the vessel 1 is guided upward along the slopes of the blocks 10. The angle of inclination of the slopes is regulated to 20-60 deg.. Plural raw water inflow holes have been pierced in the pipe 4 at regular intervals in the longitudinal direction so as to cover 0.5-1.0m area per one hole. By this constitution, the formation of a dead space in a sludge bed at the lower part of the vessel 1 is prevented, anaerobic microorganisms are allowed to work in the entire bed and the rate of effective utilization of the microorganisms is increased.