出版社：Thai Society of Higher Eduction Institutes on Environment
摘要：Odor nuisance is considered as one of the major environmental problems which deteriorate thequality of life. In this study, the emissions and spatial distributions of acetaldehyde which is the majorchemical released from the wastewater treatment of tapioca starch factory is evaluated. Emissionrate of acetaldehyde was evaluated by direct measurement through the chamber experiment. Resultswere further used as input data to evaluate the extent and magnitude of spatial distribution ofacetaldehyde in the vicinity of the factory. Short-term peak concentrations (over 3 min) derivedfrom one-hour modeled concentrations were also used to assess the odor perception. Quantitativeanalysis of the existing status of the problem under the business as usual of the factory (openedlagoon)was compared with the modified covered-lagoon. Results clearly indicated the success ofthis measure toward the reduction of the extent and magnitude of odor problem.
