| Author | Chang, Ching-lung |
| Call Number | AIT Thesis no. EV-89-15 |
| Subject(s) | Hazardous wastes
|
| Note | A thesis submitted in partial fulfillment of the requirements of
the degree of master of engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. EV-89-15 |
| Abstract | A ceme n t-silica based technique wa s us ed for waste
stabilization. Ordinary Portland Cement < OPC), Portland Rice Husk
As h Cement CPRHAC) are used as ce mentitious binders in this
experi me nt. Synthetic wastes containing Cr, Cu and Hg are prepared
in laboratory.
Heavy Metal Bonding Mechanisms are
points to explain the leaching behavior.
types between metal and binders result
trends: Cr leachability wa s higher in PRHAC
and Hg leachability were higher in OPC
experi ment.
found to be the key
The diff ere nt bonding
in diff ere nt leaching
than in OPC, while Cu
than in PRHAC in this
Cu and Hg bonding with binders is a kind of pore trapping or
pores s urfaces adsorption, so their leachability we r e affected
b y alkalinity, the h igh er alkalinity, the mor e leachability.
Comparing OPC - based method and PRHAC - bas e d method in this
study, it was found out that OPC was better immobilizer for Cr,
while PRHAC was better immobilizer for Cu a nd Hg . |
| Year | 1989 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. EV-89-15 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | Ahn, Kyu-Hong
; |
| Examination Committee(s) | Verink, Johan ;Krienqsak Udomsinrot ; |
| Scholarship Donor(s) | ROC Government; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1989 |