| Author | Narin Madeesuksatid |
| Call Number | AIT Thesis no. EV-94-17 |
| Subject(s) | Water--Purification--Filtration
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of
Engineering, School of Environment, Resources & Development |
| Publisher | Asian Institute of Technology |
| Abstract | In order to improve water filtration , which is one of the most important part of water
treatment process, this study attempts to seek for an alternative filter to substitute the
conventional sand filter. A dual media, comprise polypropylene and polystyrene, was used. The
study was carried out in two scales. In the laboratory scale the optimum parameters were
determined these parameters are the velocity of water through the media, the ratio of media
composition, and the turbidity of the influent water. The pilot scale was, then, carried out at the
actual water treatment plant. Water from the river was feeded in without sedimentation process.
The comparisons were made between the dual media and the sand media. The result show that
there is no difference of the water quality between the two media, but the headloss of the dual
media is less than that of the sand media. The dual media also has its advantage that in
backwashing process intermixing of the media does not occur while this phenomena occur in the
sand filter. |
| Year | 1994 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Visvanathan, C.
|
| Examination Committee(s) | Samorn Muttamara ;Stoll, Uwe
|
| Scholarship Donor(s) | Queen Sirikit |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1994 |