| Author | Yu, Dongmei |
| Call Number | AIT Thesis no. EV-87-4 |
| Subject(s) | Sewage--Purification--Flocculation
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The SIROFLOC Process for removing turbidity and color colloids
from a raw water by their adsorption onto very fine magnetite
particles was developed by CSIRO of Australia. The applicability of
SIROFLOC Process to waters Chao Phrya River of Thailand in removing
turbidity and co lor had been considered on a laboratory scale in an
ea lier study. The kinetic properties of the process we re studied in
this research. A simple mathematical model of the adsorption process,
which agrees well with the experimental data has been worked out,
which can be used to optimize the process design.
Several samples were jar-tested using a modified experimental
procedure to investigate the kinetics of turbidity removal of Chao
Phaya River water . The optimum conditions such as pH level, dosage of
magnetite and dosage of polyelectrolyte were found for the kinetic
study.
The most interesting feature of the results is the very rapid
initial rate of adsorption followed by a s low tailing off over a
period of several minutes. The kinetic model, which include s three
constants, agreed well with the curve of ad sorption process suggested
by the kinetic data. One constant, K2 can be given a fixed value of
0.4 min-1, which l eaves only two constants which is to be fitted with
all the adsorption data. The results of this analysis lent
considerable support to the validity of t he proposed model as, not
only an excellent fit was obtained to t he experimental data, but also
the variation of Kl and Cm under experimental conditions correlate
closely with the adsorption mechanism. |
| Year | 1987 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | I, Fude |
| Examination Committee(s) | Shin, H. S. ;Hanaki, K. ;Dixon, D. R. ;Fish, E. J. ; Wang, R. R.
|
| Scholarship Donor(s) | KEIDANREN, Japan |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1987 |