Assessment of atmospheric impact of POPs emission from the cement industry : a case study of Siamcity Cement Company, Thailand | |
| Author | Artid Prakitcharoensuk |
| Call Number | AIT Thesis no.EV-08-2 |
| Subject(s) | Siamcity Cement Company Cement industries--Environmental aspects--Thailand |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Environmental Engineering and Management |
| Publisher | Asian Institute of Technology |
| Abstract | In this study, the stack and ambient air samples taken from a cement kiln at Siam City Cement Company in Thailand in 2007 emission were analyzed for 25 Polychlorinated Biphenyls (PCBs) including 12 dioxin-like PCBs and 13 common PCBs, as well as 8 chlorobenzenes (CBs). The analyzed samples include 7 ambient air and 5 stack gas samples. The samples were taken to characterize the emission for both co-fueling hazardous wastes and no co-fueling conditions. Samples were collected isokinetically by an Auto5 sampler and analyzed by GC-ECD. It was found that total majority of PCBs and CBs was found in gas phase, about of 70 - 80 % and 100% respectively. PCB concentrations in the ambient and stack concentrations were 116±115 ng/m³ and 110±81 ug/m³, respectively. The TEQ value was ND - 6.71 pgTEQ/Nm³ in ambient and ND - 1.47 ngTEQ/Nm³ in stack gas samples. Some ambient air and stack gas samples were found to meet Japanese ambient air standard (0.6 pgTEQ/Nm³) and European emission standard (0.1 ng TEQ/Nm³). CB concentration in ambient air and stack samples were 120±13 9 ng/m³ and 760±446 ug/m³ respectively. All CB levels in ambient air did not exceed OSHA workplace (350 mg/m³) and ACGIH standards (45 mg/m³). Some correlation between PCB and CB in stack gas was found which support the hypothesis that 1,3 di-chlorbenzene, Pentachlorobenzene, and Hexachlorobenzene could be the major precursor of total PCB. Besides, PCB and CB concentrations in stack were not found to correspond to amount of plastic waste co-processed (R²=0.28) which contain the chloride content of the waste. The Industrial Sources Complex Short Term model (ISCST3) was applied to study the effects of the kiln emission on the surrounding area. One year meteorological data was used with the purpose to access the potential impact of the kiln emission. Simulated the pollutant plume followed the wind direction to the East. The highest PCB concentration was found in the East of the domain, i.e. about 0.052 pgTEQ/Nm³ as 24-hr average and 0.005 pgTEQ/Nm³ as annual average |
| Year | 2008 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| 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) | Nguyen, Thi Kim Oanh; |
| Examination Committee(s) | Chongrak Polprasert;Karstensen, Kare Helge; |
| Scholarship Donor(s) | RTG Fellowship; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2008 |