Magnetic separation technique for the isolation of sclerotia of Sclerotium cepivorum from iron-rich soil particles

2000 ◽  
Vol 32 (1) ◽  
pp. 135-137 ◽  
Author(s):  
G.E Harper ◽  
A Stewart
Keyword(s):  
Magnetic Separation ◽  
Separation Technique ◽  
Soil Particles ◽  
Sclerotium Cepivorum

scholarly journals Performance and adsorption mechanism of a magnetic calcium silicate hydrate composite for phosphate removal and recovery

2018 ◽  
Vol 2017 (2) ◽  
pp. 578-591 ◽  
Author(s):  
Lihong Peng ◽  
Hongliang Dai ◽  
Yifeng Wu ◽  
Zheqin Dai ◽  
Xiang Li ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Magnetic Separation ◽  
Adsorption Kinetics ◽  
Calcium Silicate ◽  
Calcium Silicate Hydrate ◽  
Phosphate Removal ◽  
Separation Technique ◽  
Phosphate Adsorption ◽  
X Ray ◽  
Removal And Recovery

Abstract A novel magnetic calcium silicate hydrate composite (Fe3O4@CSH) was proposed for phosphorus (P) removal and recovery from a synthetic phosphate solution, facilitated by a magnetic separation technique. The Fe3O4@CSH material was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), powder Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), zeta-potential and magnetic curves. The chemical composition and structure of Fe3O4@CSH and the successful surface loading of hydroxyl functional groups were confirmed. Phosphate adsorption kinetics, isotherm, and thermodynamic experiments showed that adsorption reaches equilibrium at 24 h, with a maximum adsorption capacity of 55.84 mg P/g under optimized experimental conditions. Adsorption kinetics fitted well to the pseudo second-order model, and equilibrium data fit the Freundlich isotherm model. Thermodynamic analysis provided a positive value for ΔH° (129.84 KJ/mol) and confirmed that phosphate adsorption on these materials is endothermic. The P-laden Fe3O4@CSH materials could be rapidly separated from aqueous solution by a magnetic separation technique within 1 min. A removal rate of more than 60% was still obtained after eight adsorption/desorption cycles, demonstrating the excellent reusability of the particles. The results demonstrated that the Fe3O4@CSH materials had high P-adsorption efficiency and were reusable.

Ceramic Tl-oxide based superconductors reinvestigated by magnetic separation technique and SQUID measurements

2011 ◽  
Vol 13 (10) ◽  
pp. 1879-1884 ◽  
Author(s):  
K.M. Mogare ◽  
I. Landau ◽  
N. Guérin ◽  
B. Trusch ◽  
M. Wagner ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Separation Technique

scholarly journals A Method of Measuring Phagocytic Capacity of Human Monocytes Using a Magnetic Separation Technique

1992 ◽  
Vol 28 (4) ◽  
pp. 464-471
Author(s):  
Yasushi TOMII ◽  
Takuji SHIMOMURA ◽  
Soutarou SADAHIRO ◽  
Eiji OKADA ◽  
Haruyuki MINAMITANI
Keyword(s):  
Magnetic Separation ◽  
Separation Technique ◽  
Human Monocytes ◽  
Phagocytic Capacity

Cobalt ferrite nanoparticles (CoFe2O4 MNPs) as catalyst and support: magnetically recoverable nanocatalysts in organic synthesis

2018 ◽  
Vol 7 (1) ◽  
pp. 43-68 ◽  
Author(s):  
Mosstafa Kazemi ◽  
Massoud Ghobadi ◽  
Ali Mirzaie
Keyword(s):  
Magnetic Separation ◽  
Organic Synthesis ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Organic Reactions ◽  
Separation Technique ◽  
Rapid Separation ◽  
Cobalt Ferrite Nanoparticles ◽  
Highly Efficient ◽  
Catalysis Research

AbstractRecovery and reusability of catalysts is an important aspect in modern catalysis research especially in organic synthesis. Compared to the conventional separation, magnetic separation has emerged as a robust, highly efficient, easy and rapid separation technique for products and catalysts. Cobalt ferrite nanoparticles are a well-known material, recognized as CoFe2O4MNPs, and can be used as both catalyst and a versatile support for functionalization of metals, organocatalysts. In recent times, catalysis research has clearly experienced a renaissance in the area of utility of cobalt ferrite (CoFe2O4MNPs) nanocatalysts based on their ability for recovery and reusability; the activity of these CoFe2O4MNPs was investigated in a category of organic reactions. In this review, the fabrication, characterization, and application of cobalt ferrite (CoFe2O4MNPs) nanocatalysts (CF-MNPs) in organic reactions have well summarized.

Waste water purification by magnetic separation technique using HTS bulk magnet system

2009 ◽  
Vol 469 (15-20) ◽  
pp. 1849-1852 ◽  
Author(s):  
T. Oka ◽  
H. Kanayama ◽  
K. Tanaka ◽  
S. Fukui ◽  
J. Ogawa ◽  
...  
Keyword(s):  
Waste Water ◽  
Magnetic Separation ◽  
Water Purification ◽  
Separation Technique ◽  
Magnet System ◽  
Hts Bulk ◽  
Bulk Magnet

scholarly journals The Magnetic Beneficiation of Coal

1985 ◽  
Vol 2 (1) ◽  
pp. 1-48
Author(s):  
S. E. Male
Keyword(s):  
Magnetic Separation ◽  
Separation Technique ◽  
Particle Sizes ◽  
Coal Processing ◽  
Power Station ◽  
Wide Range ◽  
Pulverized Fuel ◽  
Process Material

The magnetic demineralization of coal can produce a fuel containing lower leveIs of sulphur and ash forming minerals. The ability of the magnetic separation technique to process material over a wide range of particle sizes (I-1000 µm) and to operate on either liquid or gaseous feed enables a number of possible coal processing applications. These range from dry desulphurization of power station pulverized fuel to the cleaning of solvent refined coals. This article reviews work on the development of magnetic separation as applied to coal processing.

Sclerotium cepivorum. [Descriptions of Fungi and Bacteria].

1976 ◽  
Author(s):  
J. E. M. Mordue
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Agricultural Practices ◽  
Domestic Animals ◽  
White Rot ◽  
Soil Particles ◽  
Sclerotium Cepivorum ◽  
Belamcanda Chinensis

Abstract A description is provided for Sclerotium cepivorum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On onion, chives, garlic, leek, shallot, Allium canadense, A. fistulosum, A. vineale and other species of Allium. Has been recorded on Zephyranthes, Belamcanda chinensis (probably saphrophytic on the latter; 50, 1846) and on linseed, clover, cabbage and tomato by inoculation (49, 720). DISEASE: White rot of onions and their allies. GEOGRAPHICAL DISTRIBUTION: Africa (Egypt, Libya, Rhodesia, S. Africa); Asia (India, Japan, Pakistan); Australasia (Australia, New Zealand); Europe (Azores, Bulgaria, Cyprus, Czechoslovakia, Denmark, Finland, France, Germany, UK, Italy, Netherlands, Norway, Romania, Spain, Sweden, Switzerland, USSR, Yugoslavia); North America (Canada, USA); South America (Argentina, Bolivia, Brazil, Colombia, Peru, Uruguay). (CMI Map 331, ed. 2, 1968). TRANSMISSION: Soil-borne. Inoculum remains viable and capable of reinfecting crops for at least 8 yr (17, 717), and there is a limited amount of saprophytic growth in soil (33, 134; 36, 567). Also dispersed on diseased seedlings and sets and by agricultural practices which disseminate soil particles and refuse from diseased crops; can survive passage through domestic animals (22, 422; 54, 3585).

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