| Summary: | 碩士 === 國立高雄師範大學 === 環境教育研究所 === 99 === Pig breeding is one of the major farming industries in Taiwan. However, the associated environmental issues are problematic. These issues include wastewater, greenhouse gases emission, odor, and flies pollution. Because of its odor pollution, pig farm is not always welcome in the communities. Microbial agents are commonly used to reduce odor in a swine farm, however, the evaluation of its efficacy is unknown. In this study, we use one of the commercial microbial agents to evaluate the effects on NH4 and H2S reduction of wastewater in a swine farm. We also investigate the possibility of microbial agent storage (by either refrigriating or freezing) for prolong use of such agent in swine farm in a small scale. Our results showed that the microbial agent in our experiment is capable of reducing NH4 and H2S concentration but does not reach statistical difference between test group and control group. We also found the microbial agent, after batch production, can be stored by refrigriation (4℃) or frozen (-10℃) for future use by adjusting the concentrate ratio and the culture temperature. During our experiment, the enumeration of maggot was prohibited in our test group, which deserves more research to validate its efficacy.
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