Water Science and Technology Vol 41 No 3 pp 129–135 © IWA Publishing 2000
Fact-finding survey of actual garbage discharged from dormitory and its biological anaerobic-aerobic treatment
T. Imai*, M. Ukita**, M. Sekine***, M. Fukagawa**** and H. Hakanishi*****
*Yamaguchi University, Tokiwadai, Ube 755-8611, Japan
**Yamaguchi University, Tokiwadai, Ube 755-8611, Japan
***Yamaguchi University, Tokiwadai, Ube 755-8611, Japan
****Ube National College of Technology, Tokiwadai, Ube 755-8555, Japan
*****Yamaguchi University, Tokiwadai, Ube 755-8611, Japan
ABSTRACT
The objective of this study is to find a possibility of complete treatment
of garbage and resource recovery (production of methane from available
utility of carbon resource in garbage) by biological treatment process. As
the first step, a fact-finding survey of actual garbage discharged from the
dormitory of the Ube National College of Technology (equivalent to 300
population) was carried out. Second, the combined biological
anaerobic-aerobic treatment, i.e. combination of upflow anaerobic sludge
blanket (UASB) process and aerobic membrane bioreactor (AMB) process, was
applied to the garbage treatment. The applicability and efficiency of this
system were investigated in this study. The survey results showed that the
composition and quantity of garbage from a student dormitory changed
slightly during a week due to the change of the menu, however, they remained
almost unchanged during the entire experimental period. The experimental
results showed high biodegradability of the garbage, and demonstrated its
suitability for methane production. The soluble nitrogen removal was
high: over 97%. No excess sludge was wasted from the system. A high
treatment efficiency of simultaneous organic carbon and nitrogen was
obtained. The possibility of complete treatment of garbage with this process
has been positively demonstrated by this study.
Full article (PDF Format)
PAY-PER-VIEW: Buy this article for £20.00 (IWA MEMBER PRICE: £15.00)
|
