Cultivation of Spirulina sp with various nutrients through the carbon trapping method

The use of fossil fuels produces CO2 emissions which are classified as GHG triggering the phenomenon of global warming. This study aims to determine the effect of nutrition on Spirulina cultivation using the Carbon Trapping method. There were 9 treatments with nutritional variations including Urea c...

Full description

Saved in:
Bibliographic Details
Main Authors: Widayat, Hadiyanto, Wahyudi, Philia, John, Rahayu, Hesti, Rahmania, Yusi Luluk
Format: Conference Proceeding
Language:English
Subjects:
Biomass
Carbon
Carbon dioxide
Cultivation
Nutrients
Optical density
Trapping
Ureas
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The use of fossil fuels produces CO2 emissions which are classified as GHG triggering the phenomenon of global warming. This study aims to determine the effect of nutrition on Spirulina cultivation using the Carbon Trapping method. There were 9 treatments with nutritional variations including Urea concentration, NaNO3, NaCl concentration, and initial pH. The data obtained in this study include data on Optical Density (OD), biomass, pH, and conductivity. The research stages include the process of carbon trapping, cultivation, and harvesting. The carbon trapping system has the advantage that there is no excessive accumulation of CO2 gas so it can maintain optimum pH conditions. Optimum pH and salinity can increase the growth of Spirulina sp microalgae, so it is not easy to experience the death phase. On the last day of measurement, the largest OD value of 0.57 was obtained using 80 mg/L urea treatment. The smallest OD value of 0.3 was shown in the treatment using an initial pH of 10. The addition of 80 mg/L urea was also able to increase the biomass up to 0.502 gram/L. The more urea added, the more the value of the cultivated biomass. The conductivity increased drastically on the 4th and 7th day. On Day 4, the increase in the conductivity of the medium occurred at a pH variation of 28.4 mS and a variation of the addition of NaCl with a conductivity of 26.6 mS. On Day 7, the highest conductivity of the medium occurred at the addition of 25.3 mS of NaNO3. The lowest pH of the spirulina medium was 8.4 and the highest was 10.2. The most drastic decrease occurred in the initial pH variation of 10 on the first day after planting, which reached a pH 9.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0181641