The combined effect of bacteria and Chlorella vulgaris on the treatment of municipal wastewaters
Journal
Bioresource Technology
Journal Volume
146
Pages
562-568
Date Issued
2013
Author(s)
Abstract
Impacts of Chlorella vulgaris with or without co-existing bacteria on the removal of nitrogen, phosphorus and organic matter from wastewaters were studied by comparing the wastewater treatment effects between an algae-bacteria consortium and a stand-alone algae system. In the algae-bacteria system, C.vulgaris played a dominant role in the removal of nitrogen and phosphorus, while bacteria removed most of the organic matter from the wastewater. When treating unsterilized wastewater, bacteria were found to inhibit the growth of algae at >231. mg/L dissolved organic carbon (DOC). Using the algae-bacteria consortium resulted in the removal of 97% NH4+, 98% phosphorus and 26% DOC at a total nitrogen (TN) level of 29-174. mg/L. The reaction rate constant (k) values in sterilized and unsterilized wastewaters were 2.17 and 1.92. mg NH4+-N/(mg algal cell -d), respectively. © 2013 Elsevier Ltd.
Subjects
Ammonia removal; Bacteria; Chlorella vulgaris; Kinetic modeling; Municipal wastewaters
Other Subjects
Algae; Bacteria; Biogeochemistry; Biological materials; Nitrogen; Nitrogen removal; Organic compounds; Phosphorus; Rate constants; Wastewater treatment; Ammonia removal; Chlorella vulgaris; Combined effect; Dissolved organic carbon; Kinetic modeling; Municipal wastewaters; Nitrogen and phosphorus; Total nitrogen; Chemicals removal (water treatment); deoxycorticosterone; nitrogen; organic carbon; organic matter; phosphorus; bacterium; biotechnology; coexistence; dissolved organic carbon; green alga; growth rate; numerical model; phosphorus; reaction kinetics; reaction rate; sewage treatment; algal growth; article; bacterial growth; bacterial kinetics; bacterium; biochemical oxygen demand; cell density; Chlorella vulgaris; instrument sterilization; microalga; microbial consortium; nonhuman; priority journal; waste water management; water pollutant; algae; Chlorella vulgaris; Ammonia removal; Bacteria; Chlorella vulgaris; dissolved organic carbon; DOC; Kinetic modeling; microalgae and a bacterium; MPGB; Municipal wastewaters; PBRs; photobioreactors; TN; total nitrogen; total phosphorous; TP; Bacteria; Biological Oxygen Demand Analysis; Carbon; Chlorella vulgaris; Cities; Kinetics; Microbial Consortia; Nitrogen; Phosphorus; Regression Analysis; Temperature; Time Factors; Waste Disposal, Fluid; Waste Water; Water Pollutants, Chemical; Water Purification
Type
journal article