원문정보
초록
영어
Microalgae provide great potential for the production of biodiesel which is renewable energy resource. However, it is mandatory to reduce the operating cost of microalgal cultivation for realizing mass producting of microalgae-based biofuel. This problem is conjugated with cost-efficient media sources supplying sufficient nutrients for cell growth and supporting lipid accumulation with high density. Application of livestock wastewater (LSWW) to cultivation is one of the promising approaches to reach the goal. But initial microbial contamination in LSWW is main bottleneck for the realization of algae cultivation using LSWW. Furthermore, it is possible to cause block light penetration due to high turbidity of LSWW. In this study, optimum dilution ratio was found for maintaining enough amount of nutrient for microalgae and suitable light penetration simultaneously. Moreover, the potential of anti-microbial polymer (pDMAMS) was evaluated in function reducing the initial microbial contamination of LSWW as a pretreatment prior to cultivation. During microalgal cultivation, water treatment effect was also measured. With appropriate dilution and polymer contact, it is possible to utilize LSWW as medium economically.