From: Supplementing wastewater with NPK fertilizer as a cheap source of nutrients in cultivating live food (Chlorella vulgaris)
Growth medium
Growth medium cost (US$/L)
BBM
0.14679
AWW
0
AWW + 0.1 NPK
0.0001
AWW + 0.5 NPK
0.0005
AWW + 1.0 NPK
0.001