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期刊论文 16

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微藻 2

厌氧消化 1

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A novel sequence batch membrane carbonation photobioreactor developed for microalgae cultivation

Caiyun Hou, Sen Qiao, Yue Yang, Jiti Zhou

《环境科学与工程前沿（英文）》 2019年 第13卷 第6期 doi: 10.1007/s11783-019-1176-6

摘要： • A novel SBM-C-PBR was constructed for microalgae cultivation. • Membrane fouling was greatly mitigated by membrane carbonation. • NH4+ and P removal rates were around 80% in SBM-C-PBR. • Biomass was completely retained by membrane. In this study, a novel sequence batch membrane carbonation photobioreactor was developed for microalgae cultivation. Herein, membrane module was endowed functions as microalgae retention and CO2 carbonation. The results in the batch experiments expressed that the relatively optimal pore size of membranes was 30 nm, photosynthetically active radiation was 36 W/m2 and the CO2 concentration was 10% (v/v). In long-term cultivation, the microalgal concentration separately accumulated up to 1179.0 mg/L and 1296.4 mg/L in two periods. The concentrations of chlorophyll a, chlorophyll b and carotenoids were increased about 23.2, 14.9 and 6.3 mg/L respectively in period I; meanwhile, the accumulation was about 25.0, 14.5, 6.6 mg/L respectively in the period II. Furthermore, the pH was kept about 5.5–7.5 due to intermittent carbonation mode, which was suitable for the growth of microalgae. Transmembrane pressure (TMP) was only increased by 0.19 and 0.16 bar in the end of periods I and II, respectively. The pure flux recovered to 75%–80% of the original value by only hydraulic cleaning. Scanning electron microscope images also illustrated that carbonation through membrane module could mitigate fouling levels greatly.

关键词： Membrane carbonation     SBM-C-PBR     Cultivate microalgae     Membrane fouling    

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Application of heterogeneous catalysis to biodiesel synthesis using microalgae oil

《环境科学与工程前沿（英文）》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1343-9

摘要：

• Microalgae oil application for biodiesel synthesis is discussed.

关键词： Biodiesel     Heterogeneous catalysis     Transesterification     Microalgae oil    

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Allelopathic inhibition on red tide microalgae by five macroalgal extracts

AN Zhen, WANG Zhenyu, LI Fengmin, TIAN Zhijia, HU Hongying

《环境科学与工程前沿（英文）》 2008年 第2卷 第3期   页码 297-305 doi: 10.1007/s11783-008-0055-3

摘要： This study aims to identify effective antialgal allelochemicals from marine macroalgae that inhibit the growth of red tide microalgae. Practically, new algicidal agents were developed to control red tide. The growth inhibitory effects of 5 marine macroalgae , , , , and on were evaluated by adding crude seawater extracts of macroalgal dry tissue into the culture medium containing . The half-effective concentrations at 120 h (EC) of the seawater extracts were 0.6, 0.9, 1.0, 1.0, and 4.7 g/L for the five macroalgae above, respectively. , and showed strong allelopathic effect on the growth of . There have been no previous reports with regard to the allelopathic effects of the former two macroalgae so far. The possible allelochemicals of 21 compounds of the were detected using Gas chromatography-mass spectrometry (GC-MS) analysis. Unsaturated fatty acids, acrylic acid (CHO), and linolenic acid (CHO) were the most likely allelochemicals in .

关键词： containing     linolenic     inhibitory     microalgae     Practically    

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Microalgae

Sanath KONDAVEETI,Kwang Soon CHOI,Ramesh KAKARLA,Booki MIN

《环境科学与工程前沿（英文）》 2014年 第8卷 第5期   页码 784-791 doi: 10.1007/s11783-013-0590-4

摘要： Renewable algae biomass, was used as substrate for generating electricity in two chamber microbial fuel cells (MFCs). From polarization test, maximum power density with pretreated algal biomass was 102 mW·m (951 mW·m ) at current generation of 276 mA·m . The individual electrode potential as a function of current generation suggested that anodic oxidation process of algae substrate had limitation for high current generation in MFC. Total chemical oxygen demand (TCOD) reduction of 74% was obtained when initial TCOD concentration was 534 mg·L for 150 h of operation. The main organic compounds of algae oriented biomass were lactate and acetate, which were mainly used for electricity generation. Other by-products such as propionate and butyrate were formed at a negligible amount. Electrochemical Impedance Spectroscopy (EIS) analysis pinpointed the charge transfer resistance (112 ?) of anode electrode, and the exchange current density of anode electrode was 1214 nA·cm .

关键词： microbial fuel cell (MFC)     algae     bioelectricity     substrate     volatile fatty acid     biomass     COD removal efficiency    

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Microalgae cultivation and culture medium recycling by a two-stage cultivation system

Xinfeng Wang, Lu Lin, Haifeng Lu, Zhidan Liu, Na Duan, Taili Dong, Hua Xiao, Baoming Li, Pei Xu

《环境科学与工程前沿（英文）》 2018年 第12卷 第6期 doi: 10.1007/s11783-018-1078-z

摘要：

A two-stage system was designed for microalgae cultivation and nutrients removal.

Two species of microalgae were cultivated for biomass production.

UF costed less than centrifuge for harvesting microalgae at small scale.

100% NH4+ of the wastewater was removed and met discharge requirement.

关键词： Microalgae harvest     Ultrafiltration     Poultry wastewater     Nutrient removal     Two stage cultivation    

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Comparison of growth and lipid accumulation properties of two oleaginous microalgae under different nutrient

Qiao ZHANG,Yu HONG

《环境科学与工程前沿（英文）》 2014年 第8卷 第5期   页码 703-709 doi: 10.1007/s11783-014-0649-x

摘要： This study compared the growth and lipid accumulation properties of two oleaginous microalgae, namely, sp. LX1 and sp. HQ, under different nutrient conditions. Both algal species obtained the highest biomass, lipid content and lipid yield under low-nutrient conditions (mBG11 medium). The biomass, lipid content and lipid yield of sp. LX1 were 0.42 g·L , 22.5% and 93.8 mg·L , respectively. These values were relatively higher than those of sp. HQ (0.30 g·L , 17.1% and 51.3 mg·L , respectively). These algae were then cultivated in an SE medium that contained more nutrients; as a result, the biomass and lipid yield of sp. LX1 reduced more significantly than those of sp. HQ. Opposite results were observed in lipid and triacylglycerols (TAGs) contents. The cell sizes of both algal species under low-nutrient conditions were larger than those under high-nutrient conditions. sp. HQ cells did not aggregate, but sp. LX1 cells flocculated easily, particularly under low-nutrient conditions. In summary, low-nutrient conditions favour the growth and lipid production of both algae, but sp. LX1 outperforms sp. HQ.

关键词： Scenedesmus sp. LX1     Chlorella sp. HQ     growth rate     algal biomass     lipid accumulation     triacylglycerols (TAGs)    

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Highly efficient and selective removal of phosphate from wastewater of sea cucumber aquaculture for microalgae

《环境科学与工程前沿（英文）》 2023年 第17卷 第10期 doi: 10.1007/s11783-023-1720-2

摘要：

● A new adsorption-membrane separation strategy is used for phosphate removal.

关键词： Adsorption-membrane     Low-concentration phosphate     Zr-modified-bentonite     Recycle     Microalgal culture    

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Simultaneous harvesting and cell disruption of microalgae using ozone bubbles: optimization and characterization

Wan N. A. Kadir, Man K. Lam, Yoshimitsu Uemura, Jun W. Lim, Peck L. Kiew, Steven Lim, Siti S. Rosli, Chung Y. Wong, Pau L. Show, Keat T. Lee

《化学科学与工程前沿（英文）》 2021年 第15卷 第5期   页码 1257-1268 doi: 10.1007/s11705-020-2015-9

摘要： In the present study, ozone was introduced as an alternative approach to harvest and disrupt microalgae cells ( ) simultaneously for biodiesel production. At the optimum ozonation conditions (6.14 g·h ozone concentration, 30 min ozonation time, 1 L·min of ozone flowrate at medium pH of 10 and temperature of 30 °C), the sedimentation efficiency of microalgae cells increased significantly from 12.56% to 68.62%. It was observed that the microalgae cells aggregated to form flocs after pre-treated with ozone due to the increment of surface charge from –20 to –6.59 mV. Besides, ozone had successfully disrupted the microalgae cells and resulted in efficient lipid extraction, which was 1.9 times higher than the control sample. The extracted microalgae lipid was mainly consisted of methyl palmitate (C16:0), methyl oleate (C18:1) and methyl linolenate (C18:3), making it suitable for biodiesel production. Finally, utilization of recycled culture media after ozonation pre-treatment showed robust growth of microalgae, in which the biomass yield was maintained in the range of 0.796 to 0.879 g·h for 5 cycles of cultivation.

关键词： microalgae     biodiesel     ozonation     pre-treatment     lipid    

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Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

《化学科学与工程前沿（英文）》 2022年 第16卷 第6期   页码 985-995 doi: 10.1007/s11705-021-2126-y

摘要： The high contents of nitrogen-containing organic compounds in biocrude obtained from hydrothermal liquefaction of microalgae are one of the most concerned issues on the applications and environment. In the project, Chlorella sp. and Spirulina sp. were selected as raw materials to investigate the influence of different reaction conditions (i.e., reaction temperature, residence time, solid loading rate) on the distribution of nitrogen in the oil phase and aqueous phase. Three main forms of nitrogen-containing organic compounds including nitrogen-heterocyclic compounds, amide, and amine were detected in biocrudes. The contents of nitrogen-heterocyclic compounds decreased with temperature while amide kept increasing. The effect of residence time on the components of nitrogen-containing organic compounds was similar with that of temperature. However, the influence of solid loading rate was insignificant. Moreover, it was also found that the differences of amino acids in the protein components in the two microalgae might affect the nitrogen distribution in products. For example, nitrogen in basic amino acids of Spirulina sp. preferred to go into the aqueous phase comparing with the nitrogen in neutral amino acids of Chlorella sp. In summary, a brief reaction map was proposed to describe the nitrogen pathway during microalgae hydrothermal liquefaction.

关键词： microalgae     hydrothermal liquefaction     biocrude     nitrogen distribution    

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Hormesis-like growth and photosynthetic physiology of marine diatom Bohlin exposed to polystyrene microplastics

《环境科学与工程前沿（英文）》 2022年 第16卷 第1期   页码 2-2 doi: 10.1007/s11783-021-1436-0

摘要：

• Polystyrene microplastic caused hormesis-like effects in Phaeodactylum tricornutum.

关键词： Microplastics     Marine microalgae     Phaeodactylum tricornutum Bohlin     Growth     Photosynthetic pigments     Chlorophyll fluorescence parameters    

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用于生物医学的基于微藻的生物杂化材料的设计和开发 Review

张忠阳,  陈雨萌, Lasse Hyldgaard Klausen, Sebastian Amland Skaanvik, 王丹, 陈建峰, 董明东

《工程（英文）》 2023年 第24卷 第5期   页码 102-113 doi: 10.1016/j.eng.2022.09.016

摘要：

微藻是一种体积微小的真核生物，可通过叶绿素a 的光合作用将二氧化碳转化为多种生物活性物质。在过去的10 年中，有关活体微藻和由其他生物相容性成分组成的生物杂化材料在解决许多医学难题，如肿瘤治疗、组织重建和药物输送方面显示出巨大的潜力。固定在常规生物材料中的微藻可以长时间维持其光合活性，从而在局部提供氧气，同时也可作为调节细胞活性的生物相容性界面材料。微藻的运动性还激发了生物杂化机器人的发展，其中药物分子可通过非共价键吸附结合至微藻表面，并通过精确控制其运动轨迹将药物输送到目标区域。此外，微藻的自发荧光、趋光性和生物质生产特性可以被整合到具有多种功能的新型生物杂化材料的设计中；通过基因工程改造的微藻可以赋予生物杂化材料新的特性，如特异性细胞靶向能力和从藻类细胞中局部释放重组蛋白。这些技术有望促进微藻基生物杂化材料（MBBM）在多个生物医学领域的临床应用。本文总结了MBBM的制造、生理学和运动能力；然后，回顾了MBBM近年来在生物医学领域的典型应用报道；最后，对MBBM的挑战和未来前景进行了讨论。

关键词： 生物界面     微藻     生物杂化材料     微型机器人    

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Selection and characterization of eight freshwater green algae strains for synchronous water purification and lipid production

Jingjing ZHAN,Qiao ZHANG,Momei QIN,Yu HONG

《环境科学与工程前沿（英文）》 2016年 第10卷 第3期   页码 548-558 doi: 10.1007/s11783-016-0831-4

摘要： The objective of this study is to select and characterize the candidate for synchronous water purification and lipid production from eight freshwater microalgae strains ( sp. HQ, , , , , , , sp. LX1). The strains sp. HQ, . , and . showed superiority in biomass accumulation, while the top biomass producers did not correspond to the top lipid producers. achieved higher lipid content (66.1%), and sp. HQ and ranked down in sequence, with lipid content above 30%. Considering nutrient removal ability (total nitrogen (TN): 52.97%; total phosphorus (TP): 84.81%), the newly isolated microalga sp. HQ was the possible candidate for water purification coupled with lipid production. To further investigate the lipid producing and nutrient removal mechanism of candidate microalga, the ultra structural changes especially the lipid droplets under different water qualities (different TN and TP concentrations) were characterized. The results elucidate the nutrient-deficiency (TN: 3.0 mg·L ; TP: 0.3 mg·L ) condition was in favor of forming lipid bodies in sp. HQ at the sub-cellular level, while the biomass production was inhibited due to the decrease in chloroplast number which could further suppress the nutrient removal effect. Finally, a two-phase cultivation process (a nutrient replete phase to produce biomass followed by a nutrient deplete phase to enhance lipid content) was conducted in a photo-bioreactor for sp. HQ to serve for algae-based synchronous biodiesel production and wastewater purification.

关键词： freshwater microalgae     biomass production     lipid accumulation     nutrient removal    

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Research progress in removal of trace carbon dioxide from closed spaces

ZHANG Yatao, FAN Lihai, ZHANG Lin, CHEN Huanlin

《化学科学与工程前沿（英文）》 2007年 第1卷 第3期   页码 310-316 doi: 10.1007/s11705-007-0057-x

摘要： In this paper, the removal of trace carbon dioxide from closed spaces through membrane process and biotransformation are introduced in detail. These methods include the microalgae photobioreactor, membrane microalgae photobioreactor, supported liquid membrane, membrane gas-liquid contactor, hydrogel membrane, and enzyme membrane bioreactor. The advantages and disadvantages of these methods are compared. It is found that higher CO removal efficiency can be obtained in biotransformation and membrane process. However, a large volume and high energy consumption are needed in biotransformation, while the low permeability and stability must be solved in the membrane process.

关键词： removal efficiency     consumption     removal     CO removal     membrane microalgae    

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Dewatering of Scenedesmus Obliquus Cultivation Substrate with Microfiltration: Potential and Challenges for Water Reuse and Effective Harvesting

Marco Malaguti,Lorenzo Craveri,Francesco Ricceri,Vincenzo Riggio,Mariachiara Zanetti,Alberto Tiraferri,

《工程（英文）》 doi: 10.1016/j.eng.2023.07.010

摘要： In the microalgae harvesting process, which includes a step for dewatering the algal suspension, directly reusing extracted water in situ would decrease the freshwater footprint of cultivation systems. Among various algae harvesting techniques, membrane-based filtration has shown numerous advantages. This study evaluated the reuse of permeate streams derived from Scenedesmus obliquus (S. obliquus) biomass filtration under bench-scale and pilot-scale conditions. In particular, this study identified a series of challenges and mechanisms that influence the water reuse potential and the robustness of the membrane harvesting system. In a preliminary phase of this investigation, the health status of the initial biomass was found to have important implications for the harvesting performance and quality of the permeate stream to be reused; healthy biomass ensured better dewatering performance (i.e., higher water fluxes) and higher quality of the permeate water streams. A series of bench-scale filtration experiments with different combinations of cross-flow velocity and pressure values were performed to identify the operative conditions that would minimize energy requirements while maximizing water productivity. The optimal conditions, 2.2 m·s−1 and 1.4 bar (1 bar = 105 Pa), respectively, were then applied to drive pilot-scale microfiltration tests to reuse the collected permeate as a new cultivation medium for S. obliquus growth in a pilot-scale photo-bioreactor. The investigation revealed key differences between the behavior of the membrane systems at the two scales (bench and pilot). It indicated the potential for beneficial reuse of the permeate stream as the pilot-scale experiments ensured high harvesting performance and growth rates of biomass in permeate water that were highly similar to those recorded in the ideal cultivation medium. Finally, different nutrient reintegration protocols were investigated, revealing that both macro- and micronutrient levels are critical for the success of the reuse approach.

关键词： Scenedesmus obliquus     Microfiltration     Permeate reuse     Harvesting     Microalgae     Pilot-scale    

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Attached cultivation of

Victor M. Deantes-Espinosa, Tian-Yuan Zhang, Xiao-Xiong Wang, Yinhu Wu, Guo-Hua Dao, Hong-Ying Hu

《环境科学与工程前沿（英文）》 2019年 第13卷 第4期 doi: 10.1007/s11783-019-1141-4

摘要：

Attachment of Scenedesmus sp. LX1 was tested on certain materials.

A criterion for selection of materials was used to choose seven materials.

The amount of S. sp. LX1 attached on polyurethane foam was 51.74 mg/L.

Materials’ surface influenced the attachment of microalgae.

Hydrophilic and hydrophobic properties also affected the attachment of S. sp. LX1.

关键词： Attached cultivation     Microalgae     Material properties     Polyurethane     Scenedesmus    

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标题 作者 时间 类型 操作

A novel sequence batch membrane carbonation photobioreactor developed for microalgae cultivation

Caiyun Hou, Sen Qiao, Yue Yang, Jiti Zhou

期刊论文

Application of heterogeneous catalysis to biodiesel synthesis using microalgae oil

期刊论文

Allelopathic inhibition on red tide microalgae by five macroalgal extracts

AN Zhen, WANG Zhenyu, LI Fengmin, TIAN Zhijia, HU Hongying

期刊论文

Microalgae

Sanath KONDAVEETI,Kwang Soon CHOI,Ramesh KAKARLA,Booki MIN

期刊论文

Microalgae cultivation and culture medium recycling by a two-stage cultivation system

Xinfeng Wang, Lu Lin, Haifeng Lu, Zhidan Liu, Na Duan, Taili Dong, Hua Xiao, Baoming Li, Pei Xu

期刊论文

Comparison of growth and lipid accumulation properties of two oleaginous microalgae under different nutrient

Qiao ZHANG,Yu HONG

期刊论文

Highly efficient and selective removal of phosphate from wastewater of sea cucumber aquaculture for microalgae

期刊论文

Simultaneous harvesting and cell disruption of microalgae using ozone bubbles: optimization and characterization

Wan N. A. Kadir, Man K. Lam, Yoshimitsu Uemura, Jun W. Lim, Peck L. Kiew, Steven Lim, Siti S. Rosli, Chung Y. Wong, Pau L. Show, Keat T. Lee

期刊论文

Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

期刊论文

Hormesis-like growth and photosynthetic physiology of marine diatom Bohlin exposed to polystyrene microplastics

期刊论文

用于生物医学的基于微藻的生物杂化材料的设计和开发

张忠阳,  陈雨萌, Lasse Hyldgaard Klausen, Sebastian Amland Skaanvik, 王丹, 陈建峰, 董明东

期刊论文

Selection and characterization of eight freshwater green algae strains for synchronous water purification and lipid production

Jingjing ZHAN,Qiao ZHANG,Momei QIN,Yu HONG

期刊论文

Research progress in removal of trace carbon dioxide from closed spaces

ZHANG Yatao, FAN Lihai, ZHANG Lin, CHEN Huanlin

期刊论文

Dewatering of Scenedesmus Obliquus Cultivation Substrate with Microfiltration: Potential and Challenges for Water Reuse and Effective Harvesting

Marco Malaguti,Lorenzo Craveri,Francesco Ricceri,Vincenzo Riggio,Mariachiara Zanetti,Alberto Tiraferri,

期刊论文

Attached cultivation of

Victor M. Deantes-Espinosa, Tian-Yuan Zhang, Xiao-Xiong Wang, Yinhu Wu, Guo-Hua Dao, Hong-Ying Hu

期刊论文