• rapid flocculation-sedimentation of microalgae with

    Rapid flocculation-sedimentation of microalgae with

    The harvesting efficiency of microalgae via natural sedimentation and flocculation-sedimentation (Hal, AlCl 3, and MHal as flocculant, respectively) was depicted in Fig. 1.In the case of natural sedimentation, microalgae showed a slow settling velocity, corresponding to a low harvesting efficiency, approximately with a 40% harvesting efficiency for 15 min of natural sedimentation ().

  • harvesting of microalgae by flocculation

    Harvesting of Microalgae by Flocculation

    Flotation of microalgae Cell recovery 50–90%, can be more rapid than sedimentation, possibility to combine with gaseous transfer. Algal species specific, high capital and operational cost, flocculants usually required. 3–6 Flocculation + sedimentation of microalgal flocs Cell recovery over 90%, wide range of flocculants available

  • (pdf) harvesting of microalgae by flocculation

    (PDF) Harvesting of Microalgae by Flocculation

    types with rapid efficient. cell harvesting, reliable. High capital and operational. costs, energy intensive 12–22. Filtration of microalgae. Cell recovery 70–90%, wide variety of filter and

  • "rapid flocculation-sedimentation of microalgae with

    "Rapid flocculation-sedimentation of microalgae with

    Microalgae is a promising feedstock of biofuel for alternating fossil fuels. The major challenge of microalgal biofuels for commercial applications is in designing an efficient harvesting method with high economic feasibility. In this study, a rapid flocculation-sedimentation harvesting method induced by organosilane-functionalized halloysite flocculant was achieved for Scenedesmus dimorphus

  • fermentation free full-text harvesting of microalgae

    Fermentation Free Full-Text Harvesting of Microalgae

    Cell recovery 50–90%, can be more rapid than sedimentation, possibility to combine with gaseous transfer. Algal species specific, high capital and operational cost, flocculants usually required. 3–6: Flocculation + sedimentation of microalgal flocs: Cell recovery over 90%, wide range of flocculants available, variable price, can be low-cost.

  • rapid flocculation-sedimentation of microalgae with

    Rapid flocculation-sedimentation of microalgae with

    Rapid flocculation-sedimentation of microalgae with organosilane-functionalized halloysite: 作者: Tan, Daoyong; Zhang, Haiyang; Sun, Shiyong; Dong, Faqin; Sun, Hongjuan; Li, Bowen: 摘要: Microalgae is a promising feedstock of biofuel for alternating fossil fuels. The major challenge of microalgal biofuels for commercial applications is in

  • microalgae chlorella vulgaris biomass harvesting

    Microalgae Chlorella vulgaris biomass harvesting

    2018-06-28· Microalgae utilize water, CO 2 and sunlight to produce biomass that can be harnessed for the production of products from food to fuels [6, 7]. Microalgae grow very fast, almost 20 times faster in comparison with oily plants such as rapeseed and corn, which typically contain no more than 5% oil of

  • (pdf) harvesting microalgae by flocculation–sedimentation

    (PDF) Harvesting microalgae by flocculation–sedimentation

    Harvesting microalgae by flocculation–sedimentation. Article (PDF Available) in Algal Research 13:271-283 · January 2016 with 753 Reads How we measure 'reads' A 'read' is counted each time

  • freshwater microalgae harvested via flocculation induced

    Freshwater microalgae harvested via flocculation induced

    2013-07-09· Recent studies have demonstrated that microalga has been widely regarded as one of the most promising raw materials of biofuels. However, lack of an economical, efficient and convenient method to harvest microalgae is a bottleneck to boost their full-scale application. Many methods of harvesting microalgae, including mechanical, electrical, biological and chemical based, have been

  • sedimentation of algae flocculated using naturally

    Sedimentation of algae flocculated using naturally

    The ions Mg 2 +, Ca 2 +, and CO 3 2 − were evaluated for their ability to flocculate and settle algae. The results in Table 1 indicate that successful flocculation and rapid sedimentation only occurred in the presence of Mg 2 + at elevated pH, resulting in a 100-fold rate increase for over 90% of the cells relative to unflocculated sedimentation. Ca 2 + by itself did not yield rapid

  • harvesting of microalgae by means of flocculation

    Harvesting of Microalgae by Means of Flocculation

    Xu L, Guo C, Wang F et al (2011) A simple and rapid harvesting method for microalgae by in situ magnetic separation. Bioresour Technol 102:10047–10051 Google Scholar Xu Y, Purton S, Baganz F (2012) Chitosan flocculation to aid the harvesting of the microalga Chlorella sorokiniana .

  • screening of commercial natural and synthetic cationic

    Screening of commercial natural and synthetic cationic

    2015-07-01· Microalgae (including the cyanobacteria) are established commercial sources of high-value chemicals such as β-carotene, astaxanthin, docosahexaenoic acid, eicosahexaenoic acid, phycobilin pigments and algal extracts for use in cosmetics. Microalgae are also increasingly playing a role in cosmaceuticals, nutraceuticals and functional foods.

  • cas 中国科学院藻类生物学重点实验室

    CAS 中国科学院藻类生物学重点实验室

    Rapid flocculation-sedimentation of microalgae with organosilane-functionalized halloysite 2019-09-06 Microcystin-LR Degradation and Gene Regulation of

  • microalgae flocculation essay 10709 words

    Microalgae Flocculation Essay 10709 Words

    2013-08-20· Comparisons were also made on samples with same genus isolated from geographically diversified areas (i.e. high altitude (>4000 m) and mid hill (>1000 m)), and effect of seasonal variation (with respect to temperature) on similar species of microalgae. Euglena sp., Chlorella vulgaris, and Scenedesmus sp. with growth rate of 0.401 day-1, 0.377 day-1, and 0.342 day-1 and lipid content

  • an assessment of inexpensive methods for recovery

    An assessment of inexpensive methods for recovery

    This study focused on harvesting of microalgae biomass from the culture broth by flocculation sedimentation and recovery of oils from the harvested biomass using solvent-based extraction. Flocculation sedimentation was explored for several marine and freshwater microalgae including Choricystis minor (freshwater), Neochloris sp.

  • harvesting microalgae using activated sludge can decrease

    Harvesting microalgae using activated sludge can decrease

    Third generation biofuels such as microalgae have the advantages that they can be produced all year round, do not competefood productionas they can be grown on non43 arable land-,have rapid growth . 44. rates and the biochemical composition can be manipulated by varying cultivation conditions and strains [1,3]. The cultivation of microalgae

  • cn104371928a microalgae flocculation collection

    CN104371928A Microalgae flocculation collection

    The present invention relates to microalgae collection, and in particular relates to a microalgae flocculation collection method. Specifically, under stirring condition, a flocculant is added into an algae liquid in magnetic stirring until the final concentration of the flocculant in the algae liquid is 10-100mg / L, then stirring is continued in the same stirring speed until a floccule is

  • microalgal biofuels: a brief introduction john r.

    MICROALGAL BIOFUELS: A BRIEF INTRODUCTION John R.

    MICROALGAL BIOFUELS: A BRIEF INTRODUCTION John R. Benemann ([email protected]). July, 2009 Summary. The cultivation of microalgae for biofuels in general, and oil production in particular, is not a near-term commercial prospect. Aside from some niche, but significant, applications in waste-water treatment, this technology still requires considerable, long-term R&D. This is due in part to the

  • combinatorial life cycle assessment to inform process

    Combinatorial Life Cycle Assessment to Inform Process

    The use of algae as a feedstock for biodiesel production is a rapidly growing industry, in the United States and globally. A life cycle assessment (LCA) is presented that compares various methods, either proposed or under development, for algal biodiesel to inform the most promising pathways for sustainable full-scale production. For this analysis, the system is divided into five distinct

  • coagulation-flocculation sswm find tools

    Coagulation-Flocculation SSWM Find tools

    Coagulation-flocculation is a chemical water treatment technique typically applied prior to sedimentation and filtration (e.g. rapid sand filtration) to enhance the ability of a treatment process to remove particles. Coagulation is a process used to neutralise charges and form a gelatinous mass to trap (or bridge) particles thus forming a mass large enough to settle or be trapped in the filter.

  • iranica journal of energy & environment a novel and rapid

    Iranica Journal of Energy & Environment A Novel and Rapid

    Coagulation-flocculation–sedimentation experiments Coagulation-flocculation–sedimentation experiments were carried out by jar test using 250 mL of glass beaker, after 14 days of cultivation of microalgae in BG11 medium, when culture reached to its stationary phase. The beaker were filled with 50 mL of microalgal

  • 中国科学院水生生物研究所机构知识库(ihb openir): 检索

    中国科学院水生生物研究所机构知识库(IHB OpenIR): 检索

    Microalgae harvesting Flocculation-sedimentation Organosilane-functionalized halloysite Lipid extraction : Metabolic plasticity of the starchless mutant of Chlorella sorokiniana and mechanisms underlying its enhanced lipid production revealed by comparative metabolomics analysis 期刊论文

  • coagulation and flocculation

    COAGULATION AND FLOCCULATION

    Coagulation and Flocculation Process Fundamentals 1 Coagulation and Flocculation . Groundwater and surface water contain both dissolved and suspended particles. Coagulation and flocculation are used to separate the suspended solids portion from the water. Suspended particles vary in source, charge, particle size, shape, and density. Correct

  • 中国科学院水生生物研究所机构知识库(ihb openir): rapid

    中国科学院水生生物研究所机构知识库(IHB OpenIR): Rapid

    Microalgae is a promising feedstock of biofuel for alternating fossil fuels. The major challenge of microalgal biofuels for commercial applications is in designing an efficient harvesting method with high economic feasibility. In this study, a rapid flocculation-sedimentation harvesting method induced by organosilane-functionalized halloysite

  • deptartment of materials science engineering faculty

    Deptartment of Materials Science Engineering Faculty

    Rapid flocculation-sedimentation of microalgae with organosilane-functionalized halloysite, Daoyong Tan, Haiyang Zhang, Shiyong Sun, Faqin Dong, Hongjuan Sun, and Bowen Li Link Influence of surface etching and oxidation on the morphological growth of Al 2 O 3 by ALD,Mikhail Trought, Isobel Wentworth, Chathura de Alwis, Timothy Leftwich, and Kahryn Perrine

  • two-stage cultivation of nannochloropsis oculata for lipid

    Two-stage cultivation of Nannochloropsis oculata for lipid

    2017-02-01· Read "Two-stage cultivation of Nannochloropsis oculata for lipid production using reversible alkaline flocculation, Bioresource Technology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • international journal of environmental sciences & natural

    International Journal of Environmental Sciences & Natural

    Harvesting of microalgae biomass using cost efficient method is a major challenge for obtaining value added products at larger scale. Although the use of centrifugation, filtration, and electrocoagulaton methods are feasible for high harvesting efficiencies, their energy requirements and cost remained worrisome for biomass harvesting. This review presents the flocculation methods involving pH

  • optimum extraction of algae-oil from microalgae using

    Optimum Extraction of Algae-oil from Microalgae using

    Abstract- The production of microalgae biodiesel is one solution to solve the energy problem in the future, especially in the transportation sector.Some advantages of the development of the production of biodiesel from microalgae is high productivity, food security friendly and global warming problem-solving .

  • (pdf) effect of different flocculants on the flocculation

    (PDF) Effect of different flocculants on the flocculation

    Effect of different flocculants on the flocculation performance of microalgae, Chaetoceros calcitrans, cells. Afr J Biotechnol 8:5971-5978

  • halloysite clay nanotubes for controlled release

    Halloysite Clay Nanotubes for Controlled Release

    Halloysite Clay Nanotubes for Controlled Release of Protective Agents. Halloysite is an economically viable clay material that can be mined from deposits as a raw mineral and is chemically similar to kaolin.

  • a comprehensive review on harvesting of microalgae

    A comprehensive review on harvesting of microalgae

    2018-08-01· Read "A comprehensive review on harvesting of microalgae for biodiesel Key challenges and future directions, Renewable and Sustainable Energy Reviews" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • frontiers harvest of the oleaginous microalgae

    Frontiers Harvest of the Oleaginous Microalgae

    Harvest and dewatering poses a significant economical burden for industrial algae biomass production. To mitigate these effects, energy efficient techniques for these process steps have to be developed. Flocculation of the microalgae Scenedesmus obtusiusculus in salt based medium was induced by pH-shift and alternatively by addition of two biological flocculants, chitosan, and the commercial

  • extractive-transesterification of microalgae arthrospira

    Extractive-transesterification of Microalgae Arthrospira

    Microalgae are fast-growth micro-photosynthetic organism which can be cultivated in any medium conditions and functionalized as carbon capture. To produce biodiesel from microalgae, extractive-transesterification is promoted to extract and convert algal oil into biodiesel in a single step process, simplifying process and lowering energy

  • an assessment of inexpensive methods for recovery

    An assessment of inexpensive methods for recovery

    This study focused on harvesting of microalgae biomass from the culture broth by flocculation sedimentation and recovery of oils from the harvested biomass using solvent-based extraction. Flocculation sedimentation was explored for several marine and freshwater microalgae including Choricystis minor (freshwater), Neochloris sp.

  • effective cultivation of microalgae for biofuel production

    Effective cultivation of microalgae for biofuel production

    Background. In recent years, mass production of microalgae has been extensively exploited for applications in the industry of food, aquaculture, and bioenergy, and especially for biodiesel production [1, 2].However, there is still a large margin to improve economic yield for large-scale biofuel production [3, 4], since fossil fuel is still much cheaper and serves as the dominant energy source

  • high ph-induced flocculation sedimentation of algae

    High PH-Induced Flocculation Sedimentation of Algae

    High PH-Induced Flocculation Sedimentation of Algae Free download as PDF File (.pdf), Text File (.txt) or read online for free. Research paper concerning flocculation of algae

  • jp2011212624a method for flocculation separation

    JP2011212624A Method for flocculation separation

    An object of the present invention is to provide a method for efficiently aggregating and separating algae dispersed in a liquid. According to the present invention, an alkaline inorganic flocculant is added to a liquid having a pH of 2.0 to 4.0 in which algae are dispersed, and then a cationic polymer flocculant is added. A method for aggregating and separating the algae dispersed in the

  • high ph-induced flocculation of marine chlorella sp.

    High pH-induced flocculation of marine Chlorella sp.

    J Appl Phycol. DOI 10.1007/s10811-015-0576-7. 1ST INTERNATIONAL COASTAL BIOLOGY CONGRESS, YANTAI, CHINA. High pH-induced flocculation of marine Chlorella sp. for biofuel production

  • 中国科学院机构知识库网格系统: 检索

    中国科学院机构知识库网格系统: 检索

    cas ir grid以发展机构知识能力和知识管理能力为目标,快速实现对本机构知识资产的收集、长期保存、合理传播利用,积极建设对知识内容进行捕获、转化、传播、利用和审计的能力,逐步建设包括知识内容分析、关系分析和能力审计在内的知识服务能力,开展综合知识管理。

  • coagulation-flocculation sswm

    Coagulation-Flocculation SSWM

    Coagulation-flocculation is a chemical water treatment technique typically applied prior to sedimentation and filtration (e.g. rapid sand filtration) to enhance the ability of a treatment process to remove particles. Coagulation is a process used to neutralise charges and form a gelatinous mass to trap (or bridge) particles thus forming a mass large enough to settle or be trapped in the filter.

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