Potential of Human Urine as a Nutrient Medium for the Biomass Production of Microalga Scenedesmus sp

  • Abebe Muluye Addis Ababa Science and Technology University
  • Berhanu Sali Addis Ababa Science and Technology University
  • Blien Bahta Addis Ababa Science and Technology University
  • Birtukan Melese Addis Ababa Science and Technology University
  • Bethel Girma Addis Ababa Science and Technology University
  • Misrak Kebede Addis Ababa Science and Technology University
  • Muluken kebede Addis Ababa Science and Technology University
  • Arumuganainar Suresh, PhD Addis Ababa Science and Technology University
Keywords: Autotrophs, Biomass, Human urine, Microalgae, Nutrients, Scenedesmus
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Microalgae have value-added chemicals, but their biomass production is costly due to the expensive nutrient chemicals. Meantime human urine (HU) is considered wastewater and has basic nutrients for autotrophsThis study tested the potentials of being cheaply available in HU as a nutrient source for the biomass production of microalga Scenedesmus sp. HU was collected, sterilized, and made different dilutions. Microalga of Scenedesmus sp., was isolated from the urine contaminated site, purified, inoculated into the HU medium, and incubated under Sunlight for 7 days at 25 °C. The maximum growth was observed in 15 % HU as 0.795 OD670nm with 0.57 g/L biomass production with a significant difference (p<0.01). The productivity of 81 mg/L/day was reached. The concentrated urine of more than 20 % was not supporting the growth of microalga. This study concluded that human urine can be used as a nutrient medium for microalgae growth at certain dilution.


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14 September, 2021
How to Cite
Muluye, A., Sali, B., Bahta, B., Melese, B., Girma, B., Kebede, M., kebede, M., & Suresh, A. (2021). Potential of Human Urine as a Nutrient Medium for the Biomass Production of Microalga Scenedesmus sp. East African Journal of Agriculture and Biotechnology, 3(1), 35-41. https://doi.org/10.37284/eajab.3.1.409