scholarly journals Analysis of the efficiency of industrial water purification from heavy metals with a carbon-containing sorbent

2021 ◽  
Vol 937 (4) ◽  
pp. 042055
Author(s):  
Elena Tzurikova ◽  
Alla Smolyanichenko ◽  
Anatoly Bondarenko
Keyword(s):  
Experimental Data ◽  
Heavy Metals ◽  
Activated Carbon ◽  
Industrial Wastewater ◽  
Industrial Water ◽  
Sorbent Surface ◽  
X Ray ◽  
Research Material ◽  
Mining Enterprise ◽  
Sorption Method

Abstract The article presents the results of determining the efficiency of removing heavy metals from industrial wastewater by the sorption method using the “charge”, which is a waste of a coal mining enterprise, as well as activated carbon. Also, in addition to experimental data, the research material contains photographic materials of the sorbent surface and the result of its X-ray spectroscopy.

scholarly journals Adsorption of Heavy Metals from Industrial Wastewater using Nanoparticles from Agro Wastes

2021 ◽  
Author(s):  
Lekan Taofeek Popoola ◽  
Alhaji Shehu Grema
Keyword(s):  
Heavy Metals ◽  
Activated Carbon ◽  
Industrial Wastewater ◽  
Activated Carbons ◽  
Textural Properties ◽  
Isotherm Models ◽  
Heavy Metals Removal ◽  
Adsorption Mechanisms ◽  
Body Tissues ◽  
Metals Removal

Effluents from essential industries have been characterized with heavy metals which are non-biodegradable in nature and also detrimental to health when accumulated in body tissues over long exposure. Adsorption was proved as the best efficient process amongst others to remove these heavy metals from industrial wastewater due to its excellent features. Activated carbons from nanoparticles of agricultural wastes such as pods, shells, husks, peels, shafts and many prepared via calcination process at high temperature can be used as active adsorbent for the industrial wastewater treatment involving heavy metals removal. This chapter discusses heavy metals in industrial wastewater effluents and potential agro wastes from which nanoparticles of activated carbon for industrial wastewater purification could be generated. The transformation of agro wastes nanoparticles into activated carbons via calcination and their applications for heavy metals removal from industrial wastewater via adsorption were examined. Various characterization techniques to study the effects of calcination on structural, morphological and textural properties of activated carbon prepared from agro waste nanoparticles were also discussed. Various isotherm, kinetics, mechanistic and thermodynamics models to investigate the adsorptive nature of the process were presented. Error functions and algorithms for both the linear and non-linear isotherm models regression to affirm their fitness for prediction were presented. Lastly, proposed adsorption mechanisms of heavy metals removal from industrial wastewater using activated carbons from nanoparticles of agro wastes were presented.

Advances in Preparation of Activated Carbon from Sugarcane Bagasse and Using it to Treatment of Wastewater Research

2014 ◽  
Vol 1010-1012 ◽  
pp. 15-19
Author(s):  
Yan Min Qin ◽  
Mei Na Liang ◽  
Dun Qiu Wang
Keyword(s):  
Heavy Metals ◽  
Activated Carbon ◽  
Organic Pollutants ◽  
Sugarcane Bagasse ◽  
Industrial Wastewater ◽  
Research Progress ◽  
Future Research ◽  
Preparation Methods ◽  
Existing Problems

This paper discusses the utilization situation and existing problems of sugarcane bagasse, and briefly the research progress of preparation of activated carbon from sugarcane bagasse (ACSB). It reviews the application of activated carbon prepared from sugarcane bagasse, such as, industrial wastewater decolorizing, removal of organic pollutants and heavy metals in wastewater in the domestic and overseas in recent years. Points out the shortage of preparation methods, the existing problems and puts forwards some questions need to be solved in future research. Moreover, the prospect of application and the trends in future research of activated carbon from sugarcane bagasse are proposed.

Removal of Certain Heavy Metals from Brewery Wastewater Using Date Palm Seeds Activated Carbon

2018 ◽  
Vol 34 (1) ◽  
pp. 233-238 ◽  
Author(s):  
Theresa Ukamaka Nwakonobi ◽  
Samuel Baba Onoja ◽  
Hope Ogbaje
Keyword(s):  
Heavy Metals ◽  
Activated Carbon ◽  
Contact Time ◽  
Industrial Wastewater ◽  
Date Palm ◽  
World Health ◽  
Brewery Wastewater ◽  
Sorption Data ◽  
Adequate Treatment ◽  
Maximum Limit

Abstract. In Nigeria, most of the brewery industries discharge their wastewater directly into the water body without adequate treatment. Wastewater from the brewery processes contains some heavy metals which in this study, attempts were made to reduce their concentration using activated carbon. Batch studies were carried out using date palm seeds activated carbon in the removal of lead (Pb), chromium (Cr), and cadmium (Cd) ion from industrial wastewater under conditions such as contact time and adsorbent dosage. Pb and Cr concentration in the wastewater were brought within World Health Organization (WHO) maximum limit of 0.01 and 0.05 mg/L for water, respectively, at 60 min of contact time across all the considered adsorbent doses of 10×103, 20×103, 30×103, and 40×103 mg/L while Cd concentration was brought within the WHO maximum limit of 0.003 mg/L at 80 min of contact time using 30×103 mg/L of the adsorbent. The sorption data fitted well into Langmuir isotherm which was very suitable for describing the sorption equilibrium with high regression values (>0.98). This study showed that date palm seeds activated carbon is suitable for the adsorption of Pb, Cr, and Cd, and as such could be used as a cost effective adsorbent in the treatment of brewery and other industrial wastewater. Keywords: Activated carbon, Adsorbent dose, Adsorption, Brewery wastewater, Contact time, Date palm seeds, Heavy metals.

Sorption Method of Zinc (Zn2+) Removal from Galvanic Wastewater of a Machine-Building Plant

2018 ◽  
Vol 931 ◽  
pp. 966-969 ◽  
Author(s):  
Guillaume Kouassi Bru ◽  
Petr V. Klimov ◽  
Alla S. Smolyanichenko
Keyword(s):  
Experimental Data ◽  
Industrial Wastewater ◽  
Machine Building ◽  
Cleaning Efficiency ◽  
Cleaning Method ◽  
Sorption Purification ◽  
Sorption Method ◽  
The Republic ◽  
Building Plant ◽  
Machine Building Plant

This article contains studies, during which the removal of zinc from industrial wastewater of the OOO Rostselmash machine-building plant (Rostov-on-Don) was carried out, using a sorption cleaning method, based on the use of an anacard nut shell grown in the Republic of Côte d'Ivoire. According to the experimental data, the cleaning efficiency was 94%, which confirms the ability of the anacard nutshell to carry out sorption purification of industrial wastewater.

scholarly journals Synthesis and Characterization of Iron Oxide Nanoparticles and Applications in the Removal of Heavy Metals from Industrial Wastewater

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Zuolian Cheng ◽  
Annie Lai Kuan Tan ◽  
Yong Tao ◽  
Dan Shan ◽  
Kok Eng Ting ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Industrial Wastewater ◽  
Maghemite Nanoparticles ◽  
X Ray Diffraction ◽  
Toxic Heavy Metals ◽  
Solution Ph ◽  
X Ray ◽  
Adsorption Data ◽  
Removal Of Heavy Metals

This study investigated the applicability of maghemite (γ-Fe2O3) nanoparticles for the selective removal of toxic heavy metals from electroplating wastewater. The maghemite nanoparticles of 60 nm were synthesized using a coprecipitation method and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDX). Batch experiments were carried out for the removal of Pb2+ions from aqueous solutions by maghemite nanoparticles. The effects of contact time, initial concentration of Pb2+ions, solution pH, and salinity on the amount of Pb2+removed were investigated. The adsorption process was found to be highly pH dependent, which made the nanoparticles selectively adsorb this metal from wastewater. The adsorption of Pb2+reached equilibrium rapidly within 15 min and the adsorption data were well fitted with the Langmuir isotherm.

Evidence for ordered Fe3Ni

1987 ◽  
Vol 45 ◽  
pp. 216-217
Author(s):  
K.B. Reuter ◽  
D.B. Williams ◽  
J.I. Goldstein
Keyword(s):  
Experimental Data ◽  
Martensitic Transformation ◽  
Electron Diffraction ◽  
Room Temperature ◽  
Direct Evidence ◽  
Transformation Product ◽  
Iron Meteorites ◽  
X Ray ◽  
Ni Content ◽  
Temperature Transformation

In the Fe-Ni system, although ordered FeNi and ordered Ni3Fe are experimentally well established, direct evidence for ordered Fe3Ni is unconvincing. Little experimental data for Fe3Ni exists because diffusion is sluggish at temperatures below 400°C and because alloys containing less than 29 wt% Ni undergo a martensitic transformation at room temperature. Fe-Ni phases in iron meteorites were examined in this study because iron meteorites have cooled at slow rates of about 10°C/106 years, allowing phase transformations below 400°C to occur. One low temperature transformation product, called clear taenite 2 (CT2), was of particular interest because it contains less than 30 wtZ Ni and is not martensitic. Because CT2 is only a few microns in size, the structure and Ni content were determined through electron diffraction and x-ray microanalysis. A Philips EM400T operated at 120 kV, equipped with a Tracor Northern 2000 multichannel analyzer, was used.

Determination of some heavy metals (Fe, Cu, Zn and Pb) in blood by total reflection X-ray fluorescence

2003 ◽  
Vol 107 ◽  
pp. 203-206 ◽  
Author(s):  
M. Bounakhla ◽  
A. Doukkali ◽  
K. Lalaoui ◽  
H. Aguenaou ◽  
N. Mokhtar ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Total Reflection ◽  
X Ray
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