title: Removal of ammonium and phosphorus ions from synthetic wastewater by the microalgae Chlorella vulgaris coimmobilized in alginate beads with the microalgae growth-promoting bacterium Azospirillum brasilense.
abstract: Coimmobilization of the freshwater microalga Chlorella vulgaris in alginate beads with the microalgae growth-promoting bacterium Azospirillum brasilense under semi-continuous synthetic wastewater culture conditions significantly increased the removal of ammonium and soluble phosphorus ions compared to immobilization of the microalgae alone. In continuous or batch cultures removal of these ions followed a similar trend but was less efficient than in semi-continuous culture. It is proposed that coimmobilization of a microalgae with microalgae growth-promoting bacteria can serve as a tool in devising novel wastewater treatments.
authors.affiliation: Environmental Biology Center for Biological Research of the Northwest (CIB), La Paz, BCS, Mexico. bashan@cibnor.mx
authors.forename: Luz E
authors.initials: LE
authors.lastname: de-Bashan
authors.forename: Manuel
authors.initials: M
authors.lastname: Moreno
authors.forename: Juan-Pablo
authors.initials: JP
authors.lastname: Hernandez
authors.forename: Yoav
authors.initials: Y
authors.lastname: Bashan
mesh_terms: D000464:Alginates / Q000378:metabolism*; D015806:Azospirillum brasilense / Q000254:growth & development / Q000378:metabolism*; D002708:Chlorella / Q000254:growth & development / Q000378:metabolism*; D020723:Glucuronic Acid; D006603:Hexuronic Acids; D010758:Phosphorus / Q000378:metabolism*; D000644:Quaternary Ammonium Compounds / Q000378:metabolism*; D013997:Time Factors; D014871:Water Microbiology; D018508:Water Purification / Q000379:methods*
chemical_list: D000464:Alginates; D006603:Hexuronic Acids; D000644:Quaternary Ammonium Compounds; D010758:Phosphorus; D020723:Glucuronic Acid