ChemInform Abstract: Sulfur-Containing Pyridylazulenes: Synthesis and Chromogenic Behaviors for Heavy Metal Ions.

ChemInform ◽  
2013 ◽  
Vol 44 (3) ◽  
pp. no-no
Author(s):  
Shigeharu Wakabayashi ◽  
Rina Yamaoka ◽  
Emi Matsumoto ◽  
Mitsue Nishiguchi ◽  
Miki Ishiura ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Sulfur Containing

Sulfur-Containing Pyridylazulenes: Synthesis and Chromogenic Behaviors for Heavy Metal Ions

Heterocycles ◽  
2012 ◽  
Vol 85 (9) ◽  
pp. 2251 ◽  
Author(s):  
Shigeharu Wakabayashi ◽  
Emi Matsumoto ◽  
Mitsue Nishiguchi ◽  
Rina Yamaoka ◽  
Miki Ishiura ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Sulfur Containing

Granulated sulfur-containing sorbents for recovery of heavy metal ions from aqueous solutions

2008 ◽  
Vol 81 (5) ◽  
pp. 886-888 ◽  
Author(s):  
T. A. Zaporozhskikh ◽  
Ya. K. Tret’yakova ◽  
V. A. Grabel’nykh ◽  
N. V. Russavskaya ◽  
V. Yu. Vshivtsev ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Sulfur Containing

APPLICATION OF SULFUR-CONTAINING CHELATES COMPLEXES WITH PROTEINS FOR HIGH-SENSITIVE DETECTION OF HEAVY METALS

2020 ◽  
pp. 313-314
Author(s):  
A. Berlina ◽  
A. Zherdev ◽  
B. Dzantiev
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Ions ◽  
Gold Nanoparticle ◽  
Heavy Metal Ions ◽  
Sensitive Detection ◽  
Mercury Ions ◽  
Protein Conjugates ◽  
Mercaptosuccinic Acid ◽  
Sulfur Containing

The usage of sulfur-containing chelate - protein conjugates in a non-competitive flow membrane analysis of heavy metal ions has been characterized. It was shown that these reagents in combination with oligonucleotide - gold nanoparticle conjugates provide the detection of 5 ng/ml and 100 ng/ml of mercury ions in water in the case of glutathione and mercaptosuccinic acid, respectively.

Prospects for the Production and Application of New Zeolite-Like Sorption Materials for Waste Water Treatment in Railway Enterprises

2020 ◽  
Vol 24 (6) ◽  
pp. 4-9
Author(s):  
М.V. Obuzdina ◽  
E.A. Rush
Keyword(s):  
Heavy Metal ◽  
Wastewater Treatment ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Raw Materials ◽  
Waste Water Treatment ◽  
Polymer Network ◽  
Waste Products ◽  
Main Component ◽  
Sulfur Containing

The article presents the results of researches of zeolite modification in order to create sorbents for wastewater treatment from heavy metal ions. Zeolitive tuffs of deposit of the Zabaikalye Territory are considered as raw materials. It is proposed to modify zeolites with highly organosilicon compounds hexamethyldisilazane [(CH3)3Si]2NH and tetraethoxysilane (С2H5O)4Si, which leads to hydrophobization of the surface and an increase in adsorption capacity. A method for modifying the structure of natural zeolite with a sulfur-containing polymer obtained from waste products of epichlorohydrin, the main component of which is 1,2,3-trichloropropane, is described in more detail. A sulfur-containing polymer network is formed by using sulfur dissolution at room temperature in the monoethanolamine – hydrazine hydrate system and condensation with 1,2,3-trichloropropane. The result of applying a sulfur-containing polymer network is not only hydrophobization of the zeolite surface, but also the appearance of sulfur atoms in its composition, which increases the selectivity to heavy metal ions. Based on the obtained experimental data, the method of improvement the existing technologies for wastewater treatment at enterprises (railway transport) by introducing a deep post-treatment into the sorption unit scheme is proposed.

scholarly journals New sorption materials based on modification of natural zeolites in metal wastewater treatment processes

2019 ◽  
Vol 140 ◽  
pp. 08001
Author(s):  
Marina Obuzdina ◽  
Elena Rush
Keyword(s):  
Heavy Metal ◽  
Wastewater Treatment ◽  
Metal Ions ◽  
Natural Zeolite ◽  
Heavy Metal Ions ◽  
Natural Zeolites ◽  
Treatment Processes ◽  
High Sorption ◽  
Main Component ◽  
Sulfur Containing

This study considers the problem of wastewater treatment from heavy metal ions and possible ways to solve it, for example, by modifications of natural zeolites from the deposits of Transbaikalia region. We offer a method of modifying the structure of natural zeolite with a sulfur-containing polymer derived from epichlorohydrin waste, the main component of the 1.2,3trichloropropane. The sulfur-containing polymer mesh is formed by the use of the dissolution of sulfur at room temperature in the system of mono-ethanolamine-hydrazine hydrate and condensation with 1.2,3-trichlorpropane. The result of applying a sulfur-containing polymer mesh lies not only in the hydrophobization of the zeolite surface, but also in the appearance of sulfur atoms in its composition, which contributes to an increase in the selectivity with respect to heavy metal ions. We demonstrate the possibility of using new sorption materials in deep wastewater treatment processes of galvanic production. As a load for the adsorbent filter, we propose to use a three-layer filtering material with a load of natural zeolite of various modifications. It has been proven that such chemical modification of zeolite allows to obtain sorbents with an increased surface area and transitional pores that have a high sorption activity in relation to heavy metal ions.

Bioadsorption of Multiple Heavy Metal Ions by Rhizophora Apiculate sp. and Elaesis Guineensis sp.

2017 ◽  
Vol 14 (1) ◽  
pp. 15
Author(s):  
M.B. Nicodemus Ujih ◽  
Mohammad Isa Mohamadin ◽  
Milla-Armila Asli ◽  
Bebe Norlita Mohammed
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Removal Efficiency ◽  
Heavy Metal Ions ◽  
Agricultural Waste ◽  
Living Organism ◽  
Heavy Metal Concentration ◽  
Industrial Area ◽  
Electrochemical Treatment ◽  
Chemical Oxidation

Heavy metal ions contamination has become more serious which is caused by the releasing of toxic water from industrial area and landfill that are very harmful to all living organism especially human and can even cause death if contaminated in small amount of heavy metal concentration. Currently, peoples are using classic method namely electrochemical treatment, chemical oxidation/reduction, chemical precipitation and reverse osmosis to eliminate the metal ions from toxic water. Unfortunately, these methods are costly and not environmentally friendly as compared to bioadsorption method, where agricultural waste is used as biosorbent to remove heavy metals. Two types of agricultural waste used in this research namely oil palm mesocarp fiber (Elaesis guineensis sp.) (OPMF) and mangrove bark (Rhizophora apiculate sp.) (MB) biomass. Through chemical treatment, the removal efficiency was found to improve. The removal efficiency is examined based on four specification namely dosage, of biosorbent to adsorb four types of metals ion explicitly nickel, lead, copper, and chromium. The research has found that the removal efficiency of MB was lower than OPMF; whereas, the multiple metals ions removal efficiency decreased in the order of Pb2+ > Cu2+ > Ni2+ > Cr2+.

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