Application of ionizing radiation to the treatment of waste waters and sewage sludge

Journal Article · Thu Feb 01 04:00:00 EST 1973 · Mizu Shori Gijutsu, v. 14, no. 2, pp. 197-204

OSTI ID:4335996

Matsumura, T

In the treatment of waste water and sewage sludge by ionizing radiation, opinion is varied as to its competitiveness with conventional methods. Past studies in this connection are reviewed. If polluting matter in sewage is irradiated and is changed to that of easy biological dissociation, it can lead to decrease of BOD or COD. To a;taln the effective dissociation at low dosage, large G value is necessary. lrradiation works in cooperation with the effect of chlorine or heat sterilization; sterilization of harmful germs in solid matter is also possible. Settling of sewage sludge is occasionally enhanced by irradiation. Concerning economic aspects the investment in facilities decreases with increasing capacity; however, operating cost is not much changed. For a plant of capacity 5 x 10/sup 4/ gallons per day, the construction cost and operating cost per 10/sup 3/ gallons are 0.55 and 0.3 dollar respectively. (JA)

• Research Organization: Radiation Center of Osaka Prefecture, Sakai, Japan
• NSA Number: NSA-29-029125
• OSTI ID: 4335996
• Journal Information: Mizu Shori Gijutsu, v. 14, no. 2, pp. 197-204, Journal Name: Mizu Shori Gijutsu, v. 14, no. 2, pp. 197-204; ISSN MYSGA
• Country of Publication: Japan
• Language: Japanese

Related Subjects

*LIQUID WASTES-- RADIOLYSIS
*WASTE PROCESSING-- LIQUID WASTES
COST
ECONOMICS
FILTRATION
G VALUE
GAMMA RADIATION
IRRADIATION
N40300* --Chemistry--Radiation Chemistry
N47323 --Isotope & Radiation Source Technology--Radiation Sources--Industrial Uses--Other Industrial Processing
NONRADIOACTIVE WASTES
OXYGEN
RADIATION DOSES
SEDIMENTATION
STERILIZATION
WATER