scholarly journals High-Gradient Magnetic Separator (HGMS) combined with adsorption for nitrate removal from aqueous solution

2019 ◽  
Vol 212 ◽  
pp. 650-659 ◽  
Author(s):  
Z. Kheshti ◽  
K. Azodi Ghajar ◽  
Ali Altaee ◽  
M.R. Kheshti
Keyword(s):  
Aqueous Solution ◽  
Nitrate Removal ◽  
Magnetic Separator ◽  
High Gradient

A High-Gradient Magnetic Separation System for Separating Magnetic Nanobeads from Aqueous Solution

2012 ◽  
Vol 505 ◽  
pp. 39-43
Author(s):  
Xiao Fei Yan ◽  
Jian Han Lin ◽  
Rong Hui Wang ◽  
Mao Hua Wang ◽  
Dong An ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Magnetic Separation ◽  
Flow Rate ◽  
Separation System ◽  
Magnetic Separator ◽  
High Gradient Magnetic Separation ◽  
High Gradient ◽  
Separation Time ◽  
Electronic Timer ◽  
Magnetic Nanobeads

Magnetic separation is an emerging and promising technology in biological sample preparation. In this paper, a high-intensity and high-gradient magnetic separation system was developed to separate magnetic nanobeads from aqueous solution. This system mainly consisted of a magnetic separator, a micropump and an electronic timer. The magnetic separator was designed by placing two columns of permanent magnets in an aluminum holder. Two magnets in each column were laid out in repelling mode and a hole between the two columns was used to accommodate a 1.5 ml tube. Working with the electronic timer, the micropump was employed to remove waste solution at a certain rate after magnetic nanobeads captured onto the sides of the tube wall. The experiments for separation of magnetic nanobeads with diameters of 150 nm and 50 nm using the developed magnetic separation system were conducted to optimize the key parameters of the system including nanobeads concentration, separation time and flow rate. The separation efficiencies of magnetic nanobeads increased as the nanobeads concentration and the separation time increased, whereas decreased when the flow rate was increased. Experimental results proved that the proposed magnetic separation system was able to separate magnetic nanobeads (diameters of 150 nm and 50 nm) with separation efficiencies of 99% and 90% in 30 min and 150 min respectively.

Simultaneous oxidation and reduction treatments of polluted water by a bio-electro reactor

1996 ◽  
Vol 34 (9) ◽  
pp. 101-108 ◽  
Author(s):  
M. Kuroda ◽  
T. Watanabe ◽  
Y. Umedu
Keyword(s):  
Aqueous Solution ◽  
Organic Matter ◽  
Electric Current ◽  
Removal Efficiency ◽  
Concentration Ratio ◽  
Nitrate Removal ◽  
Hydrogen Gas ◽  
Polluted Water ◽  
Simultaneous Oxidation ◽  
Denitrifying Microorganisms

Application of a bio-electro reactor for treatment of various kinds of polluted water was investigated experimentally. Aqueous solution of nitrate, ammonium and/or organic matter were used as synthetic polluted water. Denitrification of the nitrate polluted water without organic matter proceeded effectively by utilizing hydrogen gas produced by electrolysis of water in the reactor. The bio-electro reactor was also available for the treatment of nitrate polluted water containing organic matter when the C/N concentration ratio was up to 1.0 under the condition of 100 mA of applied electric current. The nitrate removal efficiency from nitrate polluted water containing acetate at C/N=1.0 was more than 90% at 5 hours of HRT and 80% even at 2.8 h HRT. For the treatment of ammonium polluted water, nitrification and denitrification proceeded simultaneously in a bio-electro reactor where nitrifying and denitrifying microorganisms were immobilized on the electrodes. The results obtained in this study suggested that the bio-electro reactor system was capable to application for oxidation and reduction treatments of the nitrate and ammonium polluted water.

scholarly journals Development of A Continuous Chamber High-Gradient Magnetic Separator With A Strong Field

2002 ◽  
Vol 11 (1-2) ◽  
pp. 93-105
Author(s):  
V. I. Karmazin ◽  
V. V. Karmazin ◽  
V. A. Bardovskiy ◽  
O. V. Zamytskiy
Keyword(s):  
Strong Field ◽  
Magnetic Separator ◽  
High Gradient

High-$T_{\rm c}$ Superconducting High Gradient Magnetic Separator Using Solid Nitrogen Cooling System for Purification of CMP Wastewater

2013 ◽  
Vol 23 (3) ◽  
pp. 3700505-3700505 ◽  
Author(s):  
Jung-Bin Song ◽  
Kwang Lok Kim ◽  
Donggyu Yang ◽  
Young-Gyun Kim ◽  
Jongseok Lee ◽  
...  
Keyword(s):  
Cooling System ◽  
Magnetic Separator ◽  
High Gradient ◽  
Solid Nitrogen

Nitrate removal from aqueous solution by way of adsorption on modified sheep wool

2021 ◽  
pp. 1-8
Author(s):  
Mária Porubská ◽  
Marcel Cvik ◽  
Klaudia Jomová ◽  
Zuzana Branišová ◽  
Jana Braniša
Keyword(s):  
Aqueous Solution ◽  
Nitrate Removal ◽  
Sheep Wool

Model of particle accumulation on matrices in transverse field pulsating high gradient magnetic separator

2020 ◽  
Vol 146 ◽  
pp. 106105 ◽  
Author(s):  
Zhicheng Hu ◽  
Jun Zhang ◽  
Jianguo Liu ◽  
Yuhe Tang ◽  
Xiayu Zheng
Keyword(s):  
Transverse Field ◽  
Magnetic Separator ◽  
High Gradient ◽  
Particle Accumulation
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