Inoculum of indigenous microalgae/activated sludge for optimal treatment of municipal wastewaters and biochemical composition of residual biomass for potential applications

Utilization of Native Chlorella Strain in Laboratory-Scale Raceway Reactor for Synthetic Wastewater Treatment: A Study in Batch and Continuous Modes with Multi-Substrate Modeling

“…Consequently, the demand for nitrogen is greater than that for phosphorous, which, under optimal conditions, can accumulate up to 1 % of the dry weight [37]. Furthermore, a lower half saturation constant indicates that the microorganism can achieve a high growth rate even when nutrient concentrations are low; this trait, particularly evident for glucose and phosphate in this algae, provides a competitive advantage for this particular microorganism, which was isolated from active sludges of a municipal sewage treatment plant [28]. This adaptation likely helped it compete effectively with other organisms in its environment.…”

“…Microalgae Chlorella sp. CW2, previously isolated and characterized [28], was grown in a synthetic wastewater with the composition indicated in Table 1:…”

“…These bacteria, in fact, can utilize the organic compounds released by the microalgae into the medium and are supported by the oxygen produced by the algae. This approach was already employed with success before [28,40].…”

“…In this work, we propose an approach to study and predict the wastewater treatment by microalgae, using an autochthonous microalgal strain, present in the Mediterranean sea, that was previously isolated and characterized [28]. This approach is simple and involves obtaining of kinetic parameters from batch cultivation within Erlenmeyer flasks and applying them in an original approach for a multisubstrate model with the aim of addressing the main pollutants contained in the wastewater considered.…”

Exploration of Microalgae-Activated Sludge Growth Performance in Lab-Scale Photobioreactors under Outdoor Environmental Conditions for Wastewater Biotreatment

“…In particular, the bio-flocculation of microalgae and the subsequent self-settling recovery, among other benefits derived from the synergistic interaction, has attracted serious attention [4,[7][8][9]. In previous studies, the best experimental outcomes regarding removal potential have been reported largely for MAS inoculum ratios of 1:3 [10][11][12], 3:1 [13], 1:5, and 1:2 [14,15], using both high-rate algae pond (HRAP) and photobioreactors (PBRs). The MAS inoculum ratio has been shown to significantly influence pollution removal efficiency in co-culture systems [16].…”