期刊
ENVIRONMENTAL TECHNOLOGY
卷 37, 期 7, 页码 893-898出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09593330.2015.1089944
关键词
Bioremediation; water treatment; organic pollutants; Chlorella vulgaris; biosorption
资金
- Swedish innovation agency VINNOVA [2014-007179]
- Partnership Alnarp, SLU Alnarp, Sweden [775]
The effect of the microalgae Chlorella vulgaris on a wide range of different pesticides in water was studied. Treatments included short-term exposure (1 h) to living and dead microalgal biomass and long-term exposure (4 days) to actively growing microalgae. The initial pesticide concentration was 63.5 +/- 3.9 mu g L-1. There was no significant overall reduction of pesticides after short-term exposure. A significant reduction of the total amount of pesticides was achieved after the long-term exposure to growing microalgae (final concentration 29.7 +/- 1.0 mu g L-1) compared with the long-term control (37.0 +/- 1.2 mu g L-1). The concentrations of 10 pesticides out of 38 tested were significantly lowered in the long-term algal treatment. A high impact of abiotic factors such as sunlight and aeration for pesticide reduction was observed when the initial control (63.5 +/- 3.9 mu g L-1) and the long-term control (37.0 +/- 1.2 mu g L-1) were compared. The results suggest that water treatment using microalgae, natural inhabitants of polluted surface waters, could be further explored not only for removal of inorganic nutrients but also for removal of organic pollutants in water.
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