Earticle

초록

영어

Commercial production of microalgal biomass requires several processes for recovery of biomass after large-scale cultivation.
Harvesting of biomass requires a few solid-liquid separation steps.
Since the broth of microalgae culture was generally dilute, it was needed to remove large volume of water from the broth. Hence, the downstream recovery process of microalgal biomass can be more expensive than the large scale cultivation process. In most cases, many harvest methods were used and claimed to contribute 20-30% to the total cost of biomass production. Microalgal biomass can be harvested by centrifugation, filtration or in some cases, sedimentation. In this study, we used state-of-the-art membrane filtration method (forward osmosis) for removal of water from cultivated broth of microalgae.
Osmosis is a natural equilibrium process, therefore water passes from broth of microalgae culture to outside by diffusion until the salt concentration on both sides of the membrane are equal. If we used microalgal biomass as a raw material to produce biodiesel, moisture in the biomass would influence the economics of products. Because general dehydration method, thermal drying was more expensive than mechanical dewatering, filtration method was used prior to thermal drying.

키워드

저자

• Jongwon KANG [ Honam Petrochemical Corp. Daejeon, 305-726. ]
• Gyung Bo KANG [ Honam Petrochemical Corp. Daejeon, 305-726. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576