scholarly journals Magnetic Field Usage Supported Filtration Through Different Filter Materials

Water ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1584 ◽  
Author(s):  
Ewa Szatyłowicz ◽  
Iwona Skoczko
Keyword(s):  
Magnetic Field ◽  
Aqueous Solutions ◽  
Water Purification ◽  
Activated Alumina ◽  
Filtration Process ◽  
Manganese Removal ◽  
Filter Materials ◽  
The Subject ◽  
Manganese Compounds ◽  
Iron And Manganese

Currently, methods of water purification and aqueous solutions leading to effective reduction of introduced chemical compounds into water purification systems have become the subject of research. Physical methods have become an alternative, because by subjecting water and aqueous solutions to UV (ultraviolet) radiation or magnetic fields (MF), either ultrasonic or electric, it is possible to influence the change of structure, which results in changes in the properties of water and aqueous solutions. This paper attempts to verify the influence of a weak magnetic field on the removal of iron and manganese compounds in the filtration process on gravel of 1–2 mm granulation, sand of 0.4–0.8 mm granulation, activated alumina and activated carbon. The conducted research proved that MF has a significant influence on the effectiveness of iron and manganese removal from water in the case of alumina, while in the filtration process through other filter materials the effect of MF was small.

scholarly journals Magnetic Field Usage for the Removal of Iron by Filtration-Assisted Different Filter Materials

Proceedings ◽  
2019 ◽  
Vol 16 (1) ◽  
pp. 6
Author(s):  
Ewa Szatylowicz ◽  
Iwona Skoczko
Keyword(s):  
Magnetic Field ◽  
Grain Size ◽  
Quartz Sand ◽  
Iron Removal ◽  
Activated Alumina ◽  
Iron Compounds ◽  
Filtration Process ◽  
Filter Materials ◽  
The Magnetic Field

The conducted research concerned the effect of a magnetic field (MF) on the removal of iron compounds. The tested process was filtration through a quartz sand bed with a grain size of 0.4–0.8 mm. Another examined material was activated alumina. The obtained results proved that the MF had a significant impact on the efficiency of iron removal from a water filtrated trough than activated alumina. It was proven that the effect of the magnetic field on the filtration process using other filtration materials, was insignificant.

scholarly journals Properties of catalyst for iron and manganese oxidation in filter materials

2018 ◽  
Vol 59 ◽  
pp. 00014 ◽  
Author(s):  
Joanna Jeż-Walkowiak ◽  
Malgorzata Komorowska-Kaufman ◽  
Zbysław Dymaczewski ◽  
Marek M. Sozański ◽  
Przemysław Zakrzewski
Keyword(s):  
Chemical Composition ◽  
Silica Sand ◽  
Natural Material ◽  
Filter Media ◽  
Manganese Oxidation ◽  
Manganese Removal ◽  
Filter Materials ◽  
Microstructure Parameters ◽  
Filtration Material ◽  
Iron And Manganese

The aim of this work is to determine the properties of contact layers of grain of different type of filter media in term of their suitability for catalytical manganese oxidation and auto-activation for manganese removal from groundwater. The following oxidative filtration materials were investigated: auto-activated silica sand taken from full-scale filters (oxide coated filter media), Pyrolox – manganese ore – natural material and Hydrolit – artificially activated material. As a reference two natural not chemically active materials were tested: clean silica sand and clean chalcedonite. The investigation resulted in chemical composition and microstructure parameters of catalyst contact layers of grains. The modern analytical methods were used: EDAX, Raman spectroscopy, mercury and helium porozymetry. The data indicated that catalyst from autoacivated filtration material has better chemical composition and porosity parameters in comparison to tested catalytic filtration materials, making it more suitable for adsorption and catalytic manganese oxidation.

Purification of groundwater contaminated with iron and manganese by effective cost filter materials for households in rural areas

2018 ◽  
Vol 32 (19) ◽  
pp. 1840079
Author(s):  
Le Thi Xuan Thuy ◽  
Le Thi Suong ◽  
Nguyen Thi Sao Mai ◽  
Ho Hong Quyen ◽  
Mikito Yasuzawa
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Rural Areas ◽  
Treatment Process ◽  
Simple Structure ◽  
Filtration Process ◽  
Filter Materials ◽  
Sea Sand ◽  
Effective Cost ◽  
Iron And Manganese

This research investigated the feasibility of effective cost filter materials for groundwater purification in the small and medium scale households in Vietnamese rural areas. The trial models could treat 30 L of groundwater with aeration flow 5 L/min for 15 min. After 24 h of sedimentation, the water was filtered through layers of gravel (h = 11 cm), sea sand (h = 11 cm), activated carbon (h = 15 cm), manganese sand (h = 12 cm), sea sand (h = 11 cm) and gravel (h = 11 cm). After treatment process, the concentration of Fe and Mn ions of the output trial models was lower than the Vietnamese standard for drinking water. The model has a simple structure and easy assembly for washing the filter materials which continued to be used for the next filtration process. These models provide in rural areas, where it promising solutions for supplying drinking water to households is difficult to get clean ground water.

scholarly journals Simultaneous removal of fluoride, manganese and iron by manganese oxide supported activated alumina: characterization and optimization via response surface methodology

2021 ◽  
Author(s):  
Kun You ◽  
Yujia Gao ◽  
Weiyi Qian ◽  
Jinxiang Fu ◽  
Juliang Wang ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Ph Value ◽  
Inorganic Ions ◽  
Impregnation Method ◽  
Activated Alumina ◽  
X Ray Diffraction ◽  
Manganese Removal ◽  
Better Than ◽  
Iron And Manganese

Abstract Fluoride, iron and manganese simultaneous exceedance of standard can be observed in groundwater in northeastern China. This work aims to apply a highly efficient method combining adsorption and oxidation for the synchronous removal of the inorganic ions. An innovative adsorbent (manganese-supported activated alumina) was synthesized by the impregnation method and showed a significant adsorption capacity better than that of fresh activated alumina. The characterization (scanning electron microscope; Brunauer, Emmett and Teller; X-ray diffraction and fourier transform infrared spectroscopy) results verified the successful introduction of MnOOH and MnO2, and the improvement of surface microstructure enhanced the removal ability. The effect of single factors, such as pH value, reaction time or dosage on the removal performance has been verified. The maximum removal efficiencies of fluoride, iron and manganese were optimized via Response surface methodology considering the independent factors in the range of MO@AA dosage (5–9 g/L), pH (4–6) and contact time (4–12 h). Noted that compared with control, MO@AA exhibited 59.4% of improved fluoride performance. At pH of 5.79, contacting time of 12 h and 8.21 g/L of MO@AA, fluoride, iron and manganese removal were found to be 91, 100 and 23%, respectively. Herein, MO@AA was distinguished good applicability for the treatment of fluoride, iron and manganese containing groundwater.

Study on Fluoride, Iron and Manganese Removal from Aqueous Solutions by a Novel Composite Adsorbent

2013 ◽  
Vol 821-822 ◽  
pp. 1085-1092
Author(s):  
Chi Zhu ◽  
Shui Wang ◽  
Kai Ming Hu ◽  
Wei Xia Wang ◽  
An Juan Cai ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
The Novel ◽  
Solution Ph ◽  
Composite Adsorbent ◽  
Langmuir Adsorption ◽  
First Order ◽  
Manganese Removal ◽  
Adsorption Capacities ◽  
Endothermic Process ◽  
Iron And Manganese

Batch test had been carried out to determine the potential and the effectiveness of the novel composite adsorbent in removal of fluoride, iron and manganese from aqueous solution. It was found that the composite adsorbent could effectively not only remove Fe (II) and Mn (II) also fluoride from water, the maximum adsorption capacities for F-, Fe (II) and Mn (II) were 4.09mg·g-1 4.00mg·g-1 and 3.50mg·g-1 respectively. Kinetics data obtained for the adsorption process fitted the Lagergren First-order equation. The Langmuir adsorption isotherm was found to fit the experimental data derived from F- (R2= 0.9992), Fe (II) (R2=0.9858) and Mn (II) (R2=0.9876) removal. Both Fe (II) and Mn (II) removal increased with increase in solution pH, but F- removal remained relatively stable in pH 4.0~9.0. The process of adsorption of F-, Fe (II) and Mn (II) from aqueous solutions by the composite adsorbent was an endothermic process. The above results indicated the composite adsorbent can be possibly applied in F-, Fe (II) and Mn (II) removal from drinking water.

Materials for Electron Beam Information Storage

1969 ◽  
Vol 27 ◽  
pp. 152-153 ◽  
Author(s):  
D. E. Speliotis
Keyword(s):  
Magnetic Field ◽  
Electron Beam ◽  
Recent Literature ◽  
Electron Beams ◽  
Information Storage ◽  
The Subject ◽  
The Magnetic Field

The interaction of electron beams with a large variety of materials for information storage has been the subject of numerous proposals and studies in the recent literature. The materials range from photographic to thermoplastic and magnetic, and the interactions with the electron beam for writing and reading the information utilize the energy, or the current, or even the magnetic field associated with the electron beam.

Concerning the mechanism of the influence of a magnetic field of aqueous solutions of salts

1969 ◽  
Vol 98 (5) ◽  
pp. 195-199 ◽  
Author(s):  
O.I. Martynova ◽  
B.T. Gusev ◽  
E.A. Leont'ev
Keyword(s):  
Magnetic Field ◽  
Aqueous Solutions
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