The combined effect of bacteria and Chlorella vulgaris on the treatment of municipal wastewaters

P. J. He, B. Mao, F. L-, L. M. Shao, D. J. Lee, J. S. Chang

Research output: Contribution to journalArticlepeer-review

74 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)562-568
Number of pages7
JournalBioresource technology
Volume146
DOIs
Publication statusPublished - 2013 Oct

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Fingerprint

Dive into the research topics of 'The combined effect of bacteria and Chlorella vulgaris on the treatment of municipal wastewaters'. Together they form a unique fingerprint.

Cite this