Apparatus for treating waste water

Patent · Tue Aug 30 00:00:00 EDT 1977

OSTI ID:6758345

Yokota, I

An apparatus is disclosed for treating waste water such as sewage in which at least one bundle of a number of straight tubes is submerged in waste water to be treated, said bundle being particularly provided with a plurality of crossing passages extending across the bundle which passages are arranged intermittently along the bundle with certain intervals therebetween so that no Poiseuille flow is substantially formed in each of the tubes. The waste water is flowed through the bundle of straight tubes in a direction along the bundle. In the bundle of straight tubes, organic substances in the waste water are removed due to decomposition caused by microorganisms which adhere to the inner surface of each tube. Owing to the presence of the crossing passages, removal of the organic substances proceeds effectively and promptly due to uniform flow distribution across the bundle, a disturbance of flow given to the water, propagation of various kinds of microorganisms and the like.

• Assignee: Ishigaki Kiko Co., Ltd.
• Patent Number(s): US 4045344
• OSTI ID: 6758345
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420900* -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
ANAEROBIC DIGESTION
BIOCONVERSION
CHEMICAL REACTIONS
DESIGN
DIGESTION
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
LIQUID WASTES
MANAGEMENT
MICROORGANISMS
OPERATION
ORGANIC WASTES
OXIDATION
OXYGEN COMPOUNDS
PROCESSING
SEWAGE
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PROCESSING PLANTS
WASTE WATER
WASTES
WATER