The Effect of Mixed Wastewaters on the Biomass Production and Biochemical Content of Microalgae

Sanghyun Park, Yongtae Ahn, Young-Tae Park, Min-Kyu Ji and Jaeyoung Choi
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Sanghyun Park: Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology, Seoul 02792, Korea
Yongtae Ahn: Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology, Seoul 02792, Korea
Young-Tae Park: Natural Products Research Institute, Korea Institute of Science and Technology, Seoul 02792, Korea
Min-Kyu Ji: Environmental Assessment Group, Korea Environment Institute, Sejong 30147, Korea
Jaeyoung Choi: Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology, Seoul 02792, Korea

Energies, 2019, vol. 12, issue 18, 1-13

Abstract: The effect of ammonia and iron concentration in Bold Basal Medium and mixed wastewater (including pretreated piggery wastewater and acid mine drainage) on biomass production and biochemical content (lipid and ß-carotene) of microalgae ( Uronema sp. KGE 3) was investigated. Addition of iron to the Bold Basal Medium enhanced the growth, lipid, and ß-carotene of Uronema sp. KGE 3. The highest dry cell weight, lipid content, and lipid productivity of KGE 3 were 0.551 g L −1 , 46% and 0.249 g L −1 d −1 , respectively, at 15 mg L −1 of Fe. The highest ß-carotene was obtained at 30 mg L −1 of Fe. The biomass production of KGE 3 was ranged between 0.18 to 0.37 g L −1 . The microalgal growth was significantly improved by addition of acid mine drainage to pretreated piggery wastewater by membrane. The highest dry cell weight of 0.51 g L −1 was obtained at 1:9 of pretreated piggery wastewater by membrane and acid mine drainage for KGE 3. The removal efficiencies of total nitrogen and total phosphate was ranged from 20 to 100%. The highest lipid and ß-carotene content was found to be 1:9. Application of this system to wastewater treatment plant could provide cost effective technology for the microalgae-based industries and biofuel production field, and also provide the recycling way for pretreated piggery wastewater and acid mine drainage.

Keywords: microalgae; acid mine drainage; microalgae culture; lipid; ß-carotene (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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