| Author | Saneth Vathna |
| Call Number | AIT Thesis no. EV-99-34 |
| Subject(s) | Sewage--Purification--Cyanide removal
|
| Note | A thesis submitted in partials fulfillment of the requirements for the degree of Master of
Science , School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | Batch experimental investigation was carried out by using a laboratory scale UASB reactor
and operated continuously at ambient temperature. The reactor was inoculated with sludge
(VSS concentration of about 23,000 mg/L) from a previous UASB reactor, which treated
wastewater containing cyanide and stored for about four months. Synthetic wastewater was
used as raw wastewater with organic loading (OLR) in a range of 3-19 kg COD/mr3
.d and a
cyanide concentration in a range of 0-7 mg/L. The reactor was operated with upflow velocity
in a range of 0.1-0.16 m/hr. The startup phase of the reactor was lasted for 42 days. The
reactor was found to be feasible alternative for the treatment of wastewater containing CN concentration up to 7 mg/l (cyanide loading rate of 0.017 kg-CN-/m? .d) without affecting the
COD removal. The cyanide removal efficiency was higher than 75-80 % at operation
parameters of upflow velocity of 0.16 m/hr, OLR of about 5.5 kg-CO Dim? .d and recirculation
ratio of about 10: 1. |
| Year | 1999 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | Annachhatre, Ajit P.; |
| Examination Committee(s) | Nguyen T. Kim Oanh ;Preeda Parkpian; |
| Scholarship Donor(s) | Swedish International Development Cooperation Agency (SIDA); |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1999 |