期刊
BIOTECHNOLOGY LETTERS
卷 36, 期 9, 页码 1773-1781出版社
SPRINGER
DOI: 10.1007/s10529-014-1557-7
关键词
Chlorella; Cyanide; Microcosm; Photosynthesis; Photocatalytic pretreatment; Phenol; Pseudomonas; Salicylate; Thiocyanate
资金
- Cairo University
The effect of inorganic pollutants on the treatment of organic pollutants using algal/bacterial microcosm was investigated in a continuous photobioreactor. The microcosm was composed of Chlorella vulgaris MM1 and Pseudomonas MT1 and was able to efficiently treat artificial waste-water contaminated with 6.4 salicylate and 2.2 mM phenol at a hydraulic retention time of 4 days. No negative effect was recorded when the waste-water was supplemented with 1.6 mM thiocyanate; however, the treatment efficiency severely deteriorated when the system was challenged with 0.74 mM cyanide. Addition of 2 g NaHCO3 l(-1) did not improve the efficiency of the treatment. Toxicity of the pollutants to the alga was cyanide > thiocyanate > phenol > salicylate. The high toxicity of the waste-water was eliminated either by a 25-fold dilution or by photocatalytic pre-treatment which allowed the subsequent efficient biological treatment.
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