Microalgal Growth and Nutrient Removal Efficiency in Non-Sterilised Primary Domestic Wastewater

Microalgae biomass can produce high quantities of biochemicals that be used in various applications such as biodiesel, biogas, and aquaculture feed. The potential sterilizing wastewater for microalgae-based treatment on a lab scale is well introduced. However, the operation cost large-scale microalgae cultivation plants if using sterilising growth medium. present study aimed to evaluate Scenedesmus sp., Chlorococcum aquaticum, Ankistrodesmus augustus, Haematococcus pluvialis non-sterilised domestic their pollutant removal wastewater. were cultivated different concentrations wastewater, collected from primary plant national sewerage company Malaysia. Each species’ capacity pollutants assessed. results showed cell density, maximum productivity, concentration H. pluvialis, C. aquaticum 100% significantly higher than standard Higher was obtained (815 g/L 775.83 mg/L); nevertheless, sp. yielded highest specific rate (0.798 d−1) productivity (99.33 mg/L/day). also achieved better efficiency total nitrogen (TN), phosphorus (TP), ammonia (N-NH4) with more 90%. All tested species successfully remove nitrogen, ammonium, reach limits set by Department Environment, This demonstrated grow while simultaneously removing effectively.