Efficient sorption of Pb(ii) from an aqueous solution using a poly(aniline-co-3-aminobenzoic acid)-based magnetic core–shell nanocomposite

2016 ◽  
Vol 40 (3) ◽  
pp. 2521-2529 ◽  
Author(s):  
Ehsan Nazarzadeh Zare ◽  
Moslem Mansour Lakouraj ◽  
Atefeh Ramezani
Keyword(s):  
Aqueous Solution ◽  
Water Treatment ◽  
Magnetic Core ◽  
Magnetic Nanocomposite ◽  
Core Shell ◽  
Aminobenzoic Acid ◽  
Treatment Processes ◽  
Poly Aniline

We propose that the PA3ABA@Fe3O4 core–shell magnetic nanocomposite is an appropriate candidate for water treatment processes.

A multifunctional magnetic core–shell fibrous silica sensing probe for highly sensitive detection and removal of Zn2+ from aqueous solution

2015 ◽  
Vol 3 (18) ◽  
pp. 4713-4722 ◽  
Author(s):  
Zebin Sun ◽  
Haizhen Li ◽  
Dan Guo ◽  
Jian Sun ◽  
Guijia Cui ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Magnetic Core ◽  
Sensitive Detection ◽  
Core Shell ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

A multifunctional core-shell magnetic fibrous silica sensing probe AQ-Fe3O4@SiO2@KCC-1 was prepared for the detection, adsorption and removal of Zn2+ in aqueous solution.

Fabrication of magnetic core–shell nanocomposites with superior performance for water treatment

2013 ◽  
Vol 1 (5) ◽  
pp. 1694-1700 ◽  
Author(s):  
Shengtao Xing ◽  
Dongyuan Zhao ◽  
Wenjuan Yang ◽  
Zichuan Ma ◽  
Yinsu Wu ◽  
...  
Keyword(s):  
Water Treatment ◽  
Magnetic Core ◽  
Superior Performance ◽  
Core Shell

Development of a magnetic core-shell Fe3O4@TA@UiO-66 microsphere for removal of arsenic(III) and antimony(III) from aqueous solution

2019 ◽  
Vol 378 ◽  
pp. 120721 ◽  
Author(s):  
Pengfei Qi ◽  
Rong Luo ◽  
Thomas Pichler ◽  
Jianqiang Zeng ◽  
Yan Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Magnetic Core ◽  
Core Shell ◽  
Removal Of Arsenic

Multifunctional Fe3O4@SiO2nanoparticles for selective detection and removal of Hg2+ion in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (15) ◽  
pp. 11000-11008 ◽  
Author(s):  
Zebin Sun ◽  
Dan Guo ◽  
Haizhen Li ◽  
Li Zhang ◽  
Bo Yang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Media ◽  
Magnetic Core ◽  
Core Shell ◽  
Selective Detection

A multifunctional magnetic core–shell Fe3O4@SiO2nanoparticle decorated with rhodamine-based receptor has been successfully synthesized, aiming to detect and remove Hg2+from aqueous media.

Water Treatment Considerations–Aquatic Humus

1983 ◽  
Vol 15 (S2) ◽  
pp. 95-101 ◽  
Author(s):  
E T Gjessing
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Humic Substances ◽  
Health Effects ◽  
Surface Waters ◽  
Cold Climate ◽  
Treatment Processes ◽  
Aquatic Humus ◽  
Treatment Considerations

For several reasons the surface waters in cold climate areas are coloured due to humic substances. There are two major objections against humus in drinking water, the first is concerned with aesthetical and practical problems and the second is due to indirect negative health effects. There are essentially three different methods in use today for the removal or reduction of humus colour in water: (1) Addition of chemicals with the intention of reducing the “solubility”, (2) Addition of chemicals in order to bleach or mineralize the humus, and (3) Filtration with the intention of removal of coloured particles and some of the “soluble” colour. The treatment processes are discussed.

Practical Guide to Determine the Impact of Radon and Other Radionuclides on Water Treatment Processes

1992 ◽  
Vol 26 (5-6) ◽  
pp. 1255-1264
Author(s):  
K. L. Martins
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Environmental Protection Agency ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Packed Tower ◽  
Treatment Processes ◽  
Radioactivity Exposure ◽  
The Impact ◽  
Percent Removal

During treatment of groundwater, radon is often coincidentally removed by processes typically used to remove volatile organic compounds (VOCs)-for example, processes such as liquid-phase granular activated carbon (LGAC) adsorption and air stripping with vapor-phase carbon (VGAC). The removal of radon from drinking water is a positive benefit for the water user; however, the accumulation of radon on activated carbon may cause radiologic hazards for the water treatment plant operators and the spent carbon may be considered a low-level radioactive waste. To date, most literature on radon removal by water treatment processes was based on bench- or residential-scale systems. This paper addresses the impact of radon on municipal and industrial-scale applications. Available data have been used todevelop graphical methods of estimating the radioactivity exposure rates to facility operators and determine the fate of spent carbon. This paper will allow the reader to determine the potential for impact of radon on the system design and operation as follows.Estimate the percent removal of radon from water by LGAC adsorbers and packed tower air strippers. Also, a method to estimate the percent removal of radon by VGAC used for air stripper off-gas will be provided.Estimate if your local radon levels are such that the safety guidelines, suggested by USEPA (United States Environmental Protection Agency), of 25 mR/yr (0.1 mR/day) for radioactivity exposure may or may not be exceeded.Estimate the disposal requirements of the waste carbon for LGAC systems and VGAC for air stripper “Off-Gas” systems. Options for dealing with high radon levels are presented.

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