TY  - SER
AU  - Seo,G.T.
AU  - Chongrak Polprasert,
AU  - Samorn Muttamara,
AU  - Shin,Hang Sik
ED  - Government of Japan,
TI  - Interactions between dispersed growth and attached growth in activated sludge reactor
T2  - Thesis
PY  - 1986///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Sewage
KW  - Purification
KW  - Activated sludge process
N1  - A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development; Thesis (M.Eng.) - Asian Institute of Technology, 1986
N2  - Laboratory scale experiments were conducted to investigate  the interactions between the attached and dispersed growth  microbial behaviors in activated sludge reactors with sludge  recycle. At a 10 d SRT, the performance of the attached growth  activated sludge process(AGASP) with various amounts of contact  media, such as 5%, 10%, and 20% of reactor volume, was  investigated by comparing its effectiveness to the conventional  one at various organic loadings of 0.81, 1.44, 2.01, and 3.18  kgCOD/m3. d.  AGASP showed more effectiveness than the conventional unit  (at 99% of significance level by the t-test). Oxygenation  parameters, a & b in AGASP, were also obtained in the range of  0.3-0.5 for a and 0.004-0.054 for b, respectively. The kinetic  coefficients k , K., Y, and Kd. for AGASP were found using the  LAWRENCE and McCARTY's models and appeared to be in the range of  1-2 d-1, 20-50 mg/l, 0.4-0.8, and 0.14-0.22 d-1, respectively.  Computer simulation of the performance of AGASP was also  {u2022}  conducted using system dynamics simulation model(Attached-Dispersed growth Microbial Interaction Model, ADMIM). Even though  this model showed simple results with a little sensitivity,  better simulation of the performance of AGASP can be expected by  considering other important parameters of the system
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B19639
ER  -