Investigation of the Fate and Dynamics of Extracellular Polymeric Substances (EPS) during Sludge-Based Photogranulation under Hydrostatic Conditions.

Oxygenic photogranules have received increasing interest due to their ability to treat wastewater without aeration and recover wastewater's chemical energy and solar energy. It has been reported that these photogranules can be produced under both hydrostatic and hydrodynamic conditions, and enrichment of filamentous cyanobacteria is required for this photogranulation to occur. Despite the critical role extracellular polymeric substances (EPS) play in granulation, EPS in photogranulation is yet virtually unknown.

Kinetics of nutrient removal and expression of extracellular polymeric substances of the microalgae, Chlorella sp. and Micractinium sp., in wastewater treatment.

Two species of green algae, Chlorella sp. and Micractinium sp., were cultivated in primary effluent wastewater and high-strength wastewater (a mixture of anaerobic digestion centrate and primary effluent) to study nutrient removal and EPS (extracellular polymeric substances) expression during their growth.