Removal of trichloroethylene from drinking water by membrane gas stripping | |
| Author | Than Myint |
| Call Number | AIT Thesis no.EV-97-30 |
| Subject(s) | Drinking water--Purification Membranes (Technology) |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science |
| Publisher | Asian Institute of Technology |
| Abstract | In this study, the Volatile Organic Chemicals (VOCs) from the groundwater to produce drinking water were treated by using new membrane (MHF) with hollow-fiber module. Due to the time limitation, groundwater sample could not be collected. Thus TCE was chosen as a pollutant and dissolved into the distilled water with amount found in natural groundwater ranging from 100µg/l to 500µg/l. The effect of different air and water flow rates on mass transfer coefficient was studied. 1, 1, 1-Trichloroethane was used only in the study of selectivity of the MHF membrane. The effect of concentration was studied with the low concentration (44.2 mg/m3) and high concentration (430 mg/m3) of trichloroethylene and results showed that high concentration gave the high removal efficiency and mass transfer coefficient. It was found that water flow rate affected the mass transfer coefficient and removal efficiency of the membrane in both air-stripping and vacuum separation techniques. However, mass transfer coefficient was not much change with increasing air flow rate. According to the mass transfer coefficient, it can be said that vacuum separation is ten times more effective than air-stripping technique. |
| Year | 1997 |
| 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 and Management (EV) |
| Chairperson(s) | Takizawa, Satoshi; |
| Examination Committee(s) | Ishibashi, Yoshinobu ;Annachhatre, Ajit P.; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1997 |