期刊
BIORESOURCE TECHNOLOGY
卷 144, 期 -, 页码 445-451出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.06.065
关键词
Microalgae; Biomass production; Growth model; Scenedesmus sp LX1
资金
- National Natural Science Fund of China [51138006]
- International Science & Technology Cooperation Program of China [2010DFA92090]
Microalgal growth is the key to the coupled system of wastewater treatment and microalgal biomass production. In this study, Monod model, Droop model and Steele model were incorporated to obtain an integrated growth model describing the combined effects of nitrogen, phosphorus and light intensity on the growth rate of Scenedesmus sp. LX1. The model parameters were obtained via fitting experimental data to these classical models. Furthermore, the biomass production of Scenedesmus sp. LX1 in open pond under nutrient level of secondary effluent was analyzed based on the integrated model, predicting a maximal microalgal biomass production rate about 20 g m(-2) d(-1). In order to optimize the biomass production of open pond the microalgal biomass concentration, light intensity on the surface of open pond, total depth of culture medium and hydraulic retention time should be 500 g m(-3), 16,000 lx, 0.2 m and 5.2 d in the conditions of this study, respectively. (C) 2013 Elsevier Ltd. All rights reserved.
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