环境条件下用二形四足鼠生物处理富营养化泻湖水：一种可持续的脂质生产替代品

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

International Journal of Environmental Science and Technology Pub Date : 2024-11-12 DOI:10.1007/s13762-024-06184-5

S. G. P. Bravo, M. R. C. Chávez, L. A. Vázquez, N. V. G. Rivas

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引用次数: 0

摘要

在当前的环境问题中，保护淡水质量对生物至关重要，因此有必要对富营养化水体进行处理。在自然辐射和温度条件下，用dimorphtetradesmus dimorphus对El Conejo、Altamira和Tamaulipas泻湖水体进行生物处理，40 d的生物量为0.028±0.009 g/Ld， N-NO3−1去除率为74.24±27.99%，化学需氧量为43.37±20.75%。重力沉降产率为74.60±5.99%。扫描电镜观察到的生物量为球形，直径为10µm，脂质产量为3.71±1.79 mg/L/day。傅里叶变换红外光谱分析脂质发现酯，脂肪酸和磷脂的存在。相比之下，气相色谱法显示亚油酸，油酸和棕榈脂肪酸的存在相对较高的比例。

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Biological treatment of eutrophicated lagoon water with Tetradesmus dimorphus under ambient conditions: a sustainable alternative for lipid production

Among current environmental problems, preserving freshwater quality is vital for living beings, making it necessary to treat eutrophicated water bodies. Biological treatment of water from the lagoon El Conejo, Altamira, and Tamaulipas with Tetradesmus dimorphus resulted in 0.028 ± 0.009 g/Ld biomass, 74.24 ± 27.99% N-NO₃⁻¹ removal and 43.37 ± 20.75% of Chemical Oxygen Demand under natural conditions of radiation and temperature during 40 days of cultivation. Under gravity, sedimentation reached a yield of 74.60 ± 5.99%. The biomass observed by Scanning Electron Microscopy was spherical and 10 µm in diameter, and it also presented a lipid productivity of 3.71 ± 1.79 mg/L/day. Fourier Transform Infrared Spectroscopy analysis of lipids revealed the presence of esters, fatty acids, and phospholipids. In contrast, gas chromatography revealed the presence of linoleic, oleic, and palmitic fatty acids in relatively high proportions.

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来源期刊

International Journal of Environmental Science and Technology 环境科学-环境科学

CiteScore

5.60

自引率

6.50%

发文量

806

审稿时长

10.8 months

期刊介绍： International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management. A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made. The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.