强化生物质生产与厌氧牛粪废水生物修复相结合
Enhanced Biomass Production Combined with Anaerobic Cattle Wastewater Bioremediation.
作者信息
de Souza Denise Salvador, Valadão Romulo Cardoso, de Souza Edlene Ribeiro Prudêncio, Barbosa Maria Ivone Martins Jacintho, de Mendonça Henrique Vieira
机构信息
Institute of Technology/Engineering Department, Federal Rural University of Rio de Janeiro, Seropédica Campus, 23890-000, Seropédica, Rio de Janeiro, RJ Brazil.
Institute of Technology/Food Technology Department, Federal Rural University of Rio de Janeiro, Seropédica Campus, 23890-000, Seropédica, Rio de Janeiro, RJ Brazil.
出版信息
Bioenergy Res. 2022;15(1):412-425. doi: 10.1007/s12155-021-10258-4. Epub 2021 Feb 28.
UNLABELLED
Microalgae biomasses offer important benefits regarding macromolecules that serve as promising raw materials for sustainable production. In the present study, the microalgae DHR 20 was cultivated in horizontal photobioreactors (HPBR), with and without temperature control, in batch mode (6 to 7 days), with anaerobically digested cattle wastewater (ACWW) as substrate. High dry biomass concentrations were observed (6.3-7.15 g L). Volumetric protein, carbohydrate, and lipid productivities were 0.299, 0.135, and 0.108 g L day, respectively. Promising lipid productivities per area were estimated between 22.257 and 39.446 L ha year. High CO bio-fixation rates were recorded (875.6-1051 mg L day), indicating the relevant potential of the studied microalgae to mitigate atmospheric pollution. Carbon concentrations in biomass ranged between 41.8 and 43.6%. ACWW bioremediation was satisfactory, with BOD and COD removal efficiencies of 72.2-82.6% and 63.3-73.6%. Maximum values of 100, 95.5, 92.4, 80, 98, and 94% were achieved concerning the removal of NH , NO , P, SO , Zn, and Cu, respectively. Total and thermotolerant coliform removals reached 99-99.7% and 99.7-99.9%. This microalgae-mediated process is, thus, promising for ACWW bioremediation and valuation, producing a microalgae biomass rich in macromolecules that can be used to obtain friendly bio-based products and bioenergy.
SUPPLEMENTARY INFORMATION
The online version contains supplementary material available at 10.1007/s12155-021-10258-4.
未标注
微藻生物质在作为可持续生产有前景原材料的大分子方面具有重要益处。在本研究中，微藻DHR 20在水平光生物反应器（HPBR）中培养，有温度控制和无温度控制，以分批模式（6至7天），以厌氧消化的牛废水（ACWW）为底物。观察到高干生物量浓度（6.3 - 7.15 g/L）。体积蛋白质、碳水化合物和脂质生产率分别为0.299、0.135和0.108 g/L·天。估计每面积有前景的脂质生产率在22.257至39.446 L/公顷·年之间。记录到高的CO₂生物固定率（875.6 - 1051 mg/L·天），表明所研究微藻在减轻大气污染方面的相关潜力。生物质中的碳浓度在41.8%至43.6%之间。ACWW生物修复效果令人满意，BOD和COD去除效率分别为72.2 - 82.6%和63.3 - 73.6%。关于NH₃、NO₃⁻、P、SO₄²⁻、Zn和Cu的去除分别达到了100%、95.5%、92.4%、80%、98%和94%的最大值。总大肠菌群和耐热大肠菌群的去除率分别达到99 - 99.7%和99.7 - 99.9%。因此，这种微藻介导的过程对于ACWW生物修复和增值很有前景，产生富含大分子的微藻生物质，可用于获得友好的生物基产品和生物能源。
补充信息
在线版本包含可在10.1007/s12155 - 021 - 10258 - 4获取的补充材料。
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