期刊
CHEMICAL ENGINEERING JOURNAL
卷 287, 期 -, 页码 466-473出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.11.062
关键词
Microalgae; Algal biofuel; Wastewater treatment; Biofilm reactor; Suspended system; Harvest of algae
资金
- United States Department of Agriculture [HAW05024-H]
This review analyzes various algal biofilm reactors used for integrated wastewater treatment and biofuel production to overcome the current challenges for algal biofuel production. Various reactor configurations, support materials and operation strategies of algal biofilm reactors are discussed and compared with conventional suspended culture systems in terms of algal biomass productivity, nutrient removal, biomass harvest and biofuel production. The rotating biofilm reactor among various types of biofilm reactors was found to be a promising option to provide high biomass productivity and efficient utilization of nutrients in wastewater. Some materials such as stainless steel, nylon and natural fibers among various materials were found to be highly effective for supporting microalgal biofilm. To date mainly municipal wastewater has been integrated with algal bioreactors while only a few agricultural wastewater have been used for algal bioreactors due to inhibition of algal growth with high ammonium concentrations in animal manure and poor light delivery with high turbidity of animal manure. Overall, the algal biofilm reactors integrated with wastewater would have great potential for high productivity of algal biomass and efficient wastewater treatment if various conditions are optimized. (C) 2015 Elsevier B.V. All rights reserved.
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