| Author | Somtip Danteravanich |
| Call Number | AIT Thesis no. EV-89-9 |
| Subject(s) | Refuse and refuse disposal--Thailand--Bangkok
|
| Note | A Thesis submitted in partial fulfillment of the requirements
for the degree of Master of Science, School of Environment, Resources Development |
| Publisher | Asian Institute of Technology |
| Abstract | A study of pilot scale composting of municipal solid
waste with forced aeration was undertaken with 4 sets of
experiments, four piles for each set. The experimental piles
were carried out with an initial C:N ratio in the range of
20-25, 25-30, 30-35 and more than 35%. The aerobic condition
of each set was provided with continuous aeration, 10 h.
aeration and 2 h. stop aeration, and 8 11. aeration and 4 h.
stop aeration. Each pile was fitted with the same seeding
and controlled moisture in the range of 50-60%. The chemical
characteristics of compost extract was analysed to observe
the progress of the composting reaction. The results
obtained indicated that the variation of the chemical
characteristics such as TOC content and weight ratio of
TOC/Org- N from the compost extract were good parameters to
assess the municipal solid waste composting reaction.
The soluble organic breakdown reaction in the co1npost
pile occurred in the first few days of the thermophilic
phase. This reaction was found to be limited by the soluble
substrate concentration with respect to TOC. An average
value of this TOC concentration was found to be 8.87 1ng/g
(dry weight) of the solid sample.
The different mode of aeration had also showed Lo
influence the composting reac1 ion rate. The compost pile
with 8 h. aeration and 4 h. stop aeration almost gave tl1e
shortest composting period with respect to TOC stabilization.
While with continuous aeration, it gave a longer composing
Lime to stabilize . Under the same mode of aeration, the
compost pile with 25- 30 initial C:N ratio gave a faster
composting reaction . |
| Year | 1989 |
| 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) | Samorn Muttamara |
| Examination Committee(s) | Chongrak Polprasert ;Ahn, Kyu-Hong
|
| Scholarship Donor(s) | Canadian International Development
Agency (CIDA), Government of Canada |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1989 |