• flocculation of microalgae using cationic starch

    Flocculation of microalgae using cationic starch

    2009-11-27· Due to their small size and low concentration in the culture medium, cost-efficient harvesting of microalgae is a major challenge. We evaluated the potential of cationic starch as a flocculant for harvesting microalgae using jar test experiments. Cationic starch was an efficient flocculant for freshwater (Parachlorella, Scenedesmus) but not for marine microalgae

  • (pdf) flocculation of microalgae using cationic starch

    (PDF) Flocculation of microalgae using cationic starch

    For flocculation of Parachlorella using Greenfloc 120, the cationic starch to algal biomass ratio required to flocculate 80% of algal biomass was 0.1. For Scenedesmus, a lower dose was required

  • efficient flocculation of microalgae for biomass

    Efficient flocculation of microalgae for biomass

    This research evaluates the flocculation efficacy of cationic starch using a culture of Scenedesmus dimorphus.S.dimorphus is a species of microalgae particular to a genus that is common to many freshwater ecosystems .This genera has been identified in several studies as suitable for biomass production because of its rapid growth and high lipid production,,,,,.

  • efficient flocculation of microalgae for biomass

    Efficient Flocculation of Microalgae for Biomass

    Efficient Flocculation of Microalgae for Biomass Production Using Cationic Starch Article in Algal Research 5(1):133–139 · July 2014 with 183 Reads How we measure 'reads'

  • flocculation of microalgae using cationic starch, journal

    Flocculation of microalgae using cationic starch, Journal

    2009-11-27· Read "Flocculation of microalgae using cationic starch, Journal of Applied Phycology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • flocculation of microalgae using cationic starch

    Flocculation of microalgae using cationic starch

    80°C for 20 min before use. Flocculation experiments Flocculation of microalgae after addition of cationic starch was evaluated using jar tests (Cohen 1957; Hudson and Wagner 1981). The algal suspensions were divided into replicate 100 mL beakers. The initial algal biomass concentration in the beakers was estimated from the optical

  • harvesting of microalgae by bio-flocculation

    Harvesting of microalgae by bio-flocculation

    2010-09-28· In this paper, bio-flocculation of a non-flocculating microalga with another autoflocculating microalga has been evaluated as a promising alternative effective method for harvesting of microalgae. The presented bio-flocculation method enables the harvesting of microalgae without addition of chemical flocculants and allows for re-use of the

  • flocculation of microalgae using cationic starch core

    Flocculation of microalgae using cationic starch CORE

    Abstract. Due to their small size and low concentration in the culture medium, cost-efficient harvesting of microalgae is a major challenge. We evaluated the potential of cationic starch as a flocculant for harvesting microalgae using jar test experiments.

  • microalgae flocculation: impact of flocculant type, algae

    Microalgae flocculation: Impact of flocculant type, algae

    Flocculation of three microalgae species was studied. • Modified starches produced more concentrated flocs than aluminum sulfate did. • At greater cell concentrations more cells were flocculated per mg of flocculant. • Cationic starch with high DS was more efficient than that with low DS.

  • effective harvesting of the microalgae chlorella

    Effective harvesting of the microalgae Chlorella

    Highest flocculation efficiency without addition of Greenfloc 120 was obtained at pH 10, while in the presence of flocculant, the efficiency increased for all the tested pH values, with a maximum of 98% for pH 7.7 and 10. Cationic starch confirmed to be as an easy to use, efficient and cost-effective flocculant for harvesting of microalgae

  • efficient flocculation of microalgae for biomass

    Efficient flocculation of microalgae for biomass

    Scenedesmus, biobased products, biomass production, developmental stages, dewatering, feedstocks, flocculation, freshwater, fuels, microalgae, starch Abstract: In order to make algal biomass a suitable feedstock for fuel and bioproducts, a practical means of dewatering and concentrating the algal cells must be devised. An effective algal

  • freshwater microalgae harvested via flocculation

    Freshwater microalgae harvested via flocculation

    Mechanisms of flocculation Role of metal ions in flocculation process. Earlier studies [25, 26, 30] reported that multivalent metal ions such as Mg 2+ and Ca 2+ played an important role in flocculating microalgae by pH increase.It was found that such metal ions in the growth medium were hydrolyzed to form positive precipitates, which coagulated negative microalgal cells by sweeping

  • effective harvesting of the microalgae chlorella

    Effective harvesting of the microalgae Chlorella

    Highest flocculation efficiency without addition of Greenfloc 120 was obtained at pH 10, while in the presence of flocculant, the efficiency increased for all the tested pH values, with a maximum of 98% for pH 7.7 and 10. Cationic starch confirmed to be as an easy to use, efficient and cost-effective flocculant for harvesting of microalgae

  • flocculation of microalgae using cationic starch core

    Flocculation of microalgae using cationic starch CORE

    Abstract. Due to their small size and low concentration in the culture medium, cost-efficient harvesting of microalgae is a major challenge. We evaluated the potential of cationic starch as a flocculant for harvesting microalgae using jar test experiments.

  • microalgae chlorella vulgaris biomass harvesting

    Microalgae Chlorella vulgaris biomass harvesting

    2018-06-28· Flocculation method developed by using chitosan as a natural flocculant is a worthy microalgal harvesting method for microalgae-based biofuel production. There is hope that chitosan can be reasonably and technically realistically applied in a

  • flocculation as a low-cost method for harvesting

    Flocculation as a low-cost method for harvesting

    Microalgae are a promising new source of biomass for production of food, feed, fuel, or chemicals, but the cost and energy demand of large-scale production is still too high. An efficient low-cost method for harvesting microalgae is essential for large-scale and low-cost production of microalgal biomass. In this paper, we give an overview of different approaches for achieving flocculation of

  • nanocellulose size regulates microalgal flocculation

    Nanocellulose size regulates microalgal flocculation

    2016-10-31· Hydrocarbon contents of microalgae was measured using GC-MS. Microalgae flocculated on CNF was examined to have lipids of long carbon chain (above 21 carbon contents) more than free microalgae

  • co 2 controlled flocculation of microalgae using ph

    CO 2 controlled flocculation of microalgae using pH

    CO 2 controlled flocculation of microalgae using pH responsive cellulose nanocrystals†. Samuel Eyley‡ a, Dries Vandamme‡ b, Sanjaya Lama b, Guy Van den Mooter c, Koenraad Muylaert * b and Wim Thielemans * a a Renewable Materials and Nanotechnology Research Group, KU Leuven Campus Kortrijk, Etienne Sabbelaan 53 box 7659, 8500 Kortrijk, Belgium.

  • reversible flocculation of microalgae using magnesium

    Reversible Flocculation of Microalgae using Magnesium

    Flocculation of microalgae is a promising low-cost strategy to harvest microalgae for bulk biomass production. However, residual flocculants can interfere in further downstream processes or influence biomass quality. In this study, a new concept is demonstrated based on reversible magnesium hydroxide flocculation, using Chlorella vulgaris and Phaeodactylum tricornutum as, respectively, a

  • synthesis and characterization of starch-based cationic

    Synthesis and Characterization of Starch-based Cationic

    Synthesis and Characterization of Starch-based Cationic Flocculants for Harvesting Microalgae A THESIS SUBMITTED TO THE FACULTY OF THE GRADUATE SCHOOL OF THE UNIVERSITY OF MINNESOTA BY Liang Li IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE Advisor: Roger Ruan August, 2012

  • flocculation as a low-cost method for harvesting

    Flocculation as a low-cost method for harvesting

    Microalgae are a promising new source of biomass for production of food, feed, fuel, or chemicals, but the cost and energy demand of large-scale production is still too high. An efficient low-cost method for harvesting microalgae is essential for large-scale and low-cost production of microalgal biomass. In this paper, we give an overview of different approaches for achieving flocculation of

  • synthesis and characterization of starch-based cationic

    Synthesis and characterization of starch-based cationic

    The harvest efficiency was affected by DS of the cationic starch, flocculant dosage, pH, and flocculation time. The cationic starch based flocculant performed better than CPAM in all conditions. Pilot scale cationic starch production and harvest tests were conducted. The results agreed well with those obtained from the lab scale experiments

  • nanocellulose size regulates microalgal flocculation

    Nanocellulose size regulates microalgal flocculation

    2016-10-31· CNF flocculates microalgae. Flocculation was the typical interaction between CNF and microalgae. When poured into microalgae culture, CNF aggregated the microalgae

  • harvesting microalgae with different sources of starch

    Harvesting Microalgae with Different Sources of Starch

    Harvesting Microalgae with Different Sources of Starch-Based Cationic Flocculants. [Chengrong Peng, Shuangshuang Li, Jiaoli Zheng, Shun Huang, Dunhai Li] PMID 27457760 . Abstract In this study, starches obtained from wheat, potato, and corn were used to synthesize cationic starches (CS), and the flocculation efficiency of these materials was tested with Chlorella pyrenoidosa and Botryococcus

  • high effective harvesting of microalgae chlorella

    High effective harvesting of microalgae Chlorella

    microalgae Chlorella prothotecoides via flocculation with cationic starch. Poster session presented at International Conference on Algal Biorefinery, Kharagpur, India. Microalgal harvesting step accounts up to 30 % of the total cost of biomass production. The aim of the study was to investigate the effect of an organic polymeric flocculant, Greenfloc 120, to flocculate microalgal species

  • flocculation characteristics of microalgae using

    Flocculation Characteristics of Microalgae Using

    Flocculation Characteristics of Microalgae Using Chemical Flocculants microalgae;Chlorella;Dunaliella;biodiesel;flocculation;harvest; The aim of the study was to optimize harvesting method for concentrating microalgae from microalgae mass culture. It is well known that the mass density of microalgae is usually very low and these are small size (5-20 ${\mu}m$) in the

  • studies on technology of csf flocculation for microalgae

    Studies on technology of CSF flocculation for microalgae

    To harvest microalgae in a high concentration and efficiency way limits the scale development of microalgae industry, so researching an efficient, environmentally friendly and economical technology on microalgae harvesting is of great significance for microalgae harvesting areas.

  • harvesting microalgae with different sources of starch

    Harvesting Microalgae with Different Sources of Starch

    The various CS functioned similarly in this study, and the desired harmless flocculation efficiency was obtained at low dosages, with CS to microalgal biomass ratios of approximately 89 and 119 mg g-1 for C. pyrenoidosa and B. braunii, respectively. Impressive harmless harvesting efficiencies were obtained at lower dosages with respect to

  • flocculation of algae using chitosan semantic scholar

    Flocculation of algae using chitosan Semantic Scholar

    Flocculation of three freshwater algae, Spirulina,Oscillatoria and Chlorella, and onebrackish alga, Synechocystis, using chitosan was studiedinthe pH range 4 to 9, and chlorophyll-a concentrations inthe range 80 to 800 mg m−3, which produces aturbidity of 10

  • harvesting microalgal biomass grown in anaerobic sewage

    Harvesting Microalgal Biomass grown in Anaerobic Sewage

    ABSTRACT. Harvesting is a critical step in microalgal biomass production process for many reasons. Among the existing techniques available for harvesting and dewatering microalgal biomass, recovery from aqueous medium by coagulation-flocculation has been the most economically viable process, althoughit is highly dependent on pH.

  • harvesting of microalgae by flocculation mdpi

    Harvesting of Microalgae by Flocculation MDPI

    Typical strategies currently applied for harvesting microalgae include centrifugation, filtration, various forms of flocculation (e.g., chemical using inorganic and organic agents, alkaline flocculation, bio-flocculation using microorganisms, electro-coagulation), sedimentation, and flotation.

  • effect of processing parameters on flocculation

    Effect of Processing Parameters on Flocculation

    2013-10-25· Abstract. The flocculation process is commonly used to separate suspended solids from water. The microalgae strain, Picochlorum oklahomensis (PO), was investigated for its flocculation characteristics. Efficiencies of biopolymer addition, pH adjustment and electroflocculation for biomass recovery from the culture medium were examined.

  • synthesis and characterization of starch-based cationic

    Synthesis and characterization of starch-based cationic

    The harvest efficiency was affected by DS of the cationic starch, flocculant dosage, pH, and flocculation time. The cationic starch based flocculant performed better than CPAM in all conditions. Pilot scale cationic starch production and harvest tests were conducted. The results agreed well with those obtained from the lab scale experiments

  • harvesting microalgae with different sources of starch

    Harvesting Microalgae with Different Sources of Starch

    The various CS functioned similarly in this study, and the desired harmless flocculation efficiency was obtained at low dosages, with CS to microalgal biomass ratios of approximately 89 and 119 mg g-1 for C. pyrenoidosa and B. braunii, respectively. Impressive harmless harvesting efficiencies were obtained at lower dosages with respect to

  • screening of commercial natural and synthetic cationic

    Screening of commercial natural and synthetic cationic

    2015-07-01· Flocculation of microalgae is a promising technique to reduce the costs and energy required for harvesting microalgae. Harvesting marine microalgae requires suitable flocculants to induce the flocculation under marine conditions. This study demonstrates that cationic polymeric flocculants can be used to harvest marine microalgae. Different

  • studies on technology of csf flocculation for microalgae

    Studies on technology of CSF flocculation for microalgae

    To harvest microalgae in a high concentration and efficiency way limits the scale development of microalgae industry, so researching an efficient, environmentally friendly and economical technology on microalgae harvesting is of great significance for microalgae harvesting areas.

  • efficient flocculation of hairwork wastewater using starch

    Efficient flocculation of hairwork wastewater using starch

    Flocculation using starch-based flocculants: An China is a major textile manufacturer in the world; as a result, large quantities of dyeing effluents are generated every year in the country. Textile dyeing effluents are distinguished by Dual functionality of a graft starch flocculant:

  • flocculation of algae using chitosan semantic scholar

    Flocculation of algae using chitosan Semantic Scholar

    Flocculation of three freshwater algae, Spirulina,Oscillatoria and Chlorella, and onebrackish alga, Synechocystis, using chitosan was studiedinthe pH range 4 to 9, and chlorophyll-a concentrations inthe range 80 to 800 mg m−3, which produces aturbidity of 10 to 100 nephelometric turbidity units (NTU) in water. Chitosanreduced the algal content effectively by flocculation and settling.

  • 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

  • flocculation using starch-based flocculants: an efficient

    Flocculation using starch-based flocculants: An efficient

    2018-01-23· Efficient flocculation of hairwork wastewater using In recent decades, the demand for wigs has promoted the rapid development of hairwork industry. However, hairwork industry consumes a mass of water and generates large volume of hairwork effluents. Dual functionality of a graft starch

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