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

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.

Phycoremediation of Landfill Leachate with Desmodesmus subspicatus: A Pre-Treatment for Reverse Osmosis

“…The authors reported an effective removal of TAN (36-100%); however, microalgal growth was higher in the leachate with the lowest TAN concentration. These results correlate with those achieved by Park et al [48]. In their study, the effect of TAN and Fe concentration in mixed wastewater on biomass production and biochemical content of microalgae was investigated.…”

Microalgae Biomass as Biofuel and the Green Applications

“…In addition, the study by Park et al [17] also determined the effects of mixed wastewater consist of pretreated piggery wastewater and acid mine drainage on the microalgae Uronema sp. KGE 3 biomass productivity and biochemical content.…”

Dyeing and printing Natural Fibers with Algae-Based Colorants

“…It is defined by mononuclear cells, grouped into branched or unbranched filaments. The cell size does not exceed 10 µm (Park et al 2019). The chloroplast, representing the photosynthetic apparatus contains one or two pyrenoids, important for the atmospheric carbon concentration mechanism, found in many algae but not in the majority of terrestrial plants (Michetti et al 2010).…”