The functions of Spirulina powder on the enhanced anaerobic degradation
of quinoline and indole
Abstract
Large amount of algae has been significantly increased due to
eutrophication of water bodies. However, algae is rich in bio-active
compounds, such as vitamins, proteins, polysaccharides, unsaturated
fatty acids, nucleic acids, minerals and pigments. In the study,
spirulina was proved to be an novel and appropriate co-metabolic
substance in enhancing the anaerobic degradation of quinoline and
indole. When the dosage of Spirulina powder was 1.0 mg/L, reactor showed
the highest degradation efficiency, with ratios of 99.77% and 99.57%,
respectively. Further, the addition of Spirulina powder led to the
increase of MLSS, MLVSS, proteins, and polysaccharides concentration of
sludge. Finally, the addition of Spirulina powder resulted in the
decrease of Acinetobacter and the enrichment of Aminicenantes,
Levilinea, and Longilinea. The reactor with Spirulina powder had richer
and more diverse archaea community.