Biorefining and Carbon Cycling Program, Department of Biological and Agricultural Engineering, The University of Georgia, Athens, GA 30602, USA.
Bioresour Technol. 2010 Sep;101(17):6751-60. doi: 10.1016/j.biortech.2010.03.094. Epub 2010 May 4.
Improved wastewater management with beneficial utilization will result in enhanced sustainability and enormous cost savings in industries. Algae cultivation systems viz. raceway ponds, vertical tank reactors (VTR) and polybags were evaluated for mass production of algal consortium using carpet industry (CI) untreated wastewater. Overall areal biomass productivity of polybags (21.1 g m(-2)d(-1)) was the best followed by VTR (8.1 g m(-2)d(-1)) and raceways (5.9 g m(-2)d(-1)). An estimated biomass productivity of 51 and 77 tons ha(-1)year(-1) can be achieved using 20 and 30 L capacity polybags, respectively with triple row arrangement. Biomass obtained from algal consortium was rich in proteins (approximately 53.8%) and low in carbohydrates (approximately 15.7%) and lipids (approximately 5.3%). Consortium cultivated in polybags has the potential to produce 12,128 m(3) of biomethane ha(-1)year(-1). To be economically viable, the capital expenditure for polybag reactors needs to be reduced to $10 m(-2) for bioenergy/biofuel production.
采用有益利用方式改进废水管理，将提高工业的可持续性并节省大量成本。利用地毯行业（CI）未经处理的废水，评估了养殖系统（如：养殖槽、垂直罐式反应器和塑料袋）来大规模生产藻类共生体。塑料袋的总表面积生物量生产率（21.1 g m(-2)d(-1)）最高，其次是 VTR（8.1 g m(-2)d(-1)）和养殖槽（5.9 g m(-2)d(-1)）。采用 20 升和 30 升容量的塑料袋，分别以三排排列，估计每公顷每年可实现 51 吨和 77 吨的生物量生产率。从藻类共生体中获得的生物质富含蛋白质（约 53.8%），碳水化合物（约 15.7%）和脂肪（约 5.3%）含量低。在塑料袋中培养的共生体具有生产 12128 m(3) 每公顷每年生物甲烷的潜力。为了在经济上可行，用于生物能源/生物燃料生产的塑料袋反应器的资本支出需要降低到每平方米 10 美元。
