TY  - SER
AU  - Bamayi,Wladimir Askinin
AU  - Vigneswaran,S.
AU  - Chongrak Polprasert,
AU  - Fude,I.
ED  - ASEAN-USADA,
TI  - Design criteria development of rotating biological contactor and anaerobic (upflow) filter system for sewage treatment
T2  - Thesis
PY  - 1983///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Water
KW  - Purification
KW  - Filtration
KW  - Filters and filtration
N1  - A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering; Thesis (M.Eng.) - Asian Institute of Technology
N2  - The study is performed to find a suitable low cost system for the treat-  ment of domestic sewage. The possibility of using anaerobic filter, rotating  biological disk and their combination was studied.  From the anaerobic filter performance at varying hydraulic loading rates  (1.41, 1.764, 2.45 m3/m2.d), it was found that beyond a hydraulic loading rate  of 1.764 m3/m2.d, the COD removal efficiency was not satisfactory. The filter  depth of 120 cm (2-2.5 cm broken stone) was necessary to achieve a reasonable  COD removal.  The RBC performance at different hydraulic loading rates (0.03, 0.06 and  0.12 m3/m2·d) indicated that the removal efficiency lies in a range of 72 to  82%.  The detailed capital and operational and maintenance cost calculation  also favour the RBC compared to the AF and the combination of RBC and AF.
ER  -