Decolorisation of piggery wastewater to stimulate the production of Arthrospira platensis

被引:34
作者
Depraetere, Orily [1 ]
Foubert, Imogen [1 ]
Muylaert, Koenraad [1 ]
机构
[1] KU Leuven Kulak, Lab Aquat Biol, B-8500 Kortrijk, Belgium
关键词
Color removal; Piggery wastewater; Spirulina; Phosphate recovery; Microalgae; DISSOLVED ORGANIC-MATTER; SPIRULINA ARTHROSPIRA; NUTRIENT REMOVAL; FLOCCULATION; EFFLUENT; GROWTH; ALGAE;
D O I
10.1016/j.biortech.2013.08.165
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The aim of this study was to evaluate the potential of color removal methods for enhancing the growth rate and biomass yield of Arthrospira produced using piggery wastewater as a nutrient source. Color could be removed from the piggery wastewater by means of oxidation (H2O2-UV) or by means of positively charged flocculants (e.g., ferric chloride, magnesium hydroxide), biopolymers (chitosan, cationic starch) or adsorbents (hydrotalcite). Some methods remove not only color but also phosphate (e.g., hydrotalcite) while other do not affect phosphate concentrations (e.g., chitosan). Color removal using chitosan resulted in a doubling of initial growth rate and a 50% increase in final biomass yield of Arthrospira produced on piggery wastewater. Color removal using hydrotalcite resulted in a low biomass yield of Arthrospira due to phosphate limitation. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:366 / 372
页数:7
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