| 초록 |
Organic fertilizer which is derived from food waste or biomass contains high values of nutrients which make it a promising source can support microalgae growth. However, many fertilizer types including dark color, it significantly obstructs to photosynthesis of microalgae. Recently, advanced oxdation processes (AOP) have received considerable attention due to it is possible to degrade color from liquid compounds. The decolorisation of PAL-1 fertilizer was investigated using UV radiation in the presence of H2O2, besides, growth of microalga, Chlorella vulgaris, in AOP-treated or original fertilizer also was compared. The results showed that excess of H2O2 could reduce decolorisation by scavenging the ·OH. The decrease of nitrate during process is insignificantly. Finally, better performance for all of investigating parameters as microalgae growth rate (contains optical density, dry cell weight) and lipid content was obtained by AOP-treated fertilizer. |
