LBA-Laboratory of Biology of Algae, Dept. of Biology, University of Rome "Tor Vergata", via Cracovia 1, 00133, Rome, Italy.
Laboratory of Environmental Engineering, Dept. Civil Engineering and Computer Science Engineering, University of Rome "Tor Vergata", via del Politecnico, 00133, Rome, Italy.
Plant Physiol Biochem. 2018 Apr;125:45-51. doi: 10.1016/j.plaphy.2018.01.032. Epub 2018 Jan 31.
This work focused on the potential of Desmodesmus sp. to be employed for wastewater bioremediation and biodiesel production. The green microalga was grown in a culture medium with a phosphorus (P) content of 4.55 mg L simulating an industrial effluent; it was also exposed to a bimetal solution of copper (Cu) and nickel (Ni) for 2 days. P removal was between 94 and 100%. After 2 days of exposure to metals, 94% of Cu and 85% of Ni were removed by Desmodesmus sp. Adsorption tests showed that the green microalga was able to remove up to 90% of Cu and 43% of Ni in less than 30 min. The presence of metals decreased the lipid yield, but biodiesel quality from the biomass obtained from metal exposed samples was higher than that grown without metals. This result revealed that this technology could offer a new alternative solution to environmental pollution and carbon-neutral fuel generation.
本研究聚焦于利用杜氏藻（Desmodesmus sp.）进行废水生物修复和生物柴油生产的潜力。该绿色微藻在含有 4.55mg/L 磷（P）的培养基中生长，模拟工业废水；同时，将其暴露于铜（Cu）和镍（Ni）的双金属溶液中 2 天。P 的去除率在 94%至 100%之间。暴露于金属 2 天后，94%的 Cu 和 85%的 Ni 被杜氏藻去除。吸附实验表明，绿色微藻在不到 30 分钟内即可去除高达 90%的 Cu 和 43%的 Ni。金属的存在降低了脂质产量，但从暴露于金属的生物量中提取的生物柴油质量高于未暴露于金属的生物量。这一结果表明，该技术可能为环境污染和碳中和燃料的产生提供新的解决方案。
