CD Skripsi
Pemanfaatan Limbah Cair Biogas Dari Pabrik Kelapa Sawit Untuk Produksi Chlorella Sp. Pada Ruang Terbuka
The biogass liquid waste originated from palm oil industry contains high
nutrient and it can be used for growing microalgae such as Chlorella sp. To understand
the effectiveness of the waste as a medium to grow Chlorella sp., a study was conducted
from September – October 2016. The culture was conducted in the outdoor scale.
There were 4 treatments applied, namely P0 (0% waste), P1 (15% waste), P2 (20%
waste), and P3 (25% waste). Parameters measured were the abundance and the biomass
of Chlorella sp., nitrate and phosphate content, pH, TDS, and temperature. Results
shown that the best growth of Chlorella sp. was in the P1, the abundance was 7,252,800
cells/ml and the biomass was 3.51 gr/L. The growth of Chlorella sp. was able to
reduce the nitrate and phosphate concentration, from 11.1 to 1.51 mg/l (nitrate) and
from 0.617 to 0.033 mg/l (phosphate) respectively. This fact indicates that the nutrient
have been used for growing the microalgae. Based on data obtained, it can be concluded
that the palm oil liquid waste can be used as nutrient source for Chlorella sp.
Key words : palm oil industry liquid waste, nutrient, microalgae, Chlorella sp.
1) Student of the Faculty of Fisheries and Marine Science, University of Riau
2) Lecture of the Faculty of Fisheries and Marine Science, University of Riau
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