Wahyunto A. Nugroho, M. Bagus Hermanto, Mustofa Lutfi, Muhammad Fakhri
The objective of this research is to observe the phosphorus elimination from tofu industrial wastewater. Chlorella vulgaris as autotrophic microalgae was applied in raceway pond type bioreactor. The reactor volume was 120L, 17m of path length with 10 days of hydraulic retention time. The light source is mainly from the sun during the day without specifically any light added at night. The observed parameters in this study were BOD, phosphorus and ammonium removal, and microalgae growth with its initial density set to be 5,00,000 cells per mL of wastewater. A higher growth rate of microalgae was shown during the batch treatment than the continuous one. The average achievement for the phosphorus, ammonium and BOD removal were 58.6%, 84% and 83 % respectively.
Department of Agricultural Engineering, Brawijaya University, Jalan Veteran 1, Malang, East Java, 65145, Indonesia; Department of Aquaculture, Brawijaya University, Jalan Veteran 1, Malang, East Java, 65145, Indonesia
