scholarly journals Biosorption of Chromium (VI) and Calculations of Langmuir’s and Freundlichs Isotherms

2018 ◽  
Vol 60 (2) ◽  
pp. 90-95
Author(s):  
Muhammad Tahir Butt ◽  
Zara Amjad ◽  
Rauf Ahmad Khan
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Aqueous Solution ◽  
Heavy Metal ◽  
Toxic Metals ◽  
Low Cost ◽  
Cost Effective ◽  
Environmental Applications ◽  
Chromium Vi ◽  
Yeast Biomass ◽  
Process Cost

In the present study yeast biomass has been successfully used as biosorbent for removal of Crfrom aqueous solution. Yeasts of Saccharomyces cerevisiae are effective biosorbents for heavy metal ionsand it can be bought in large quantity at low cost. S. cerevisiae can remove toxic metals from aqueoussolutions to various levels. This low-cost biosorbent will make the process cost-effective and competitiveparticularly for environmental applications in detoxifying effluents. Langmuir’s and Freundlichs isothermswere also plotted to observe the maximum biosorption of heavy metal chromium (VI).

An Overview of Fruit Waste as Sustainable Adsorbent for Heavy Metal Removal

2013 ◽  
Vol 389 ◽  
pp. 29-35 ◽  
Author(s):  
Norzila Othman ◽  
S. Mohd-Asharuddin ◽  
M.F.H. Azizul-Rahman
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Removal ◽  
Low Cost ◽  
Heavy Metal Removal ◽  
Cost Effective ◽  
Good Efficiency ◽  
Recovery Method ◽  
High Metal Content ◽  
Fruit Waste

Biosorption is an environmental friendly method for metal removal as it can be used as a cost effective and efficient technique for heavy metal removal. A lot of biomass can be choosed as biosorbent such as waste material from food processing and agriculture.ent. This paper will review the potential used of local fruit rind as biosorbent for heavy metal removal in wastewater. Heavy metals have been in various industries and resulted to a toxic condition in aquatic ecosystem. Therefore, various techniques have been employed for the treatment of metal-bearing industrial wastewaters including biological treatment through biosorption. Biosorption offers the advantages of low cost, good efficiency and production of sludge with high metal content is possible to avoid by the existence of metal recovery method from metal loaded biosorbent. The successful application of local fruit waste in treating wastewater containing heavy metals requires a deeper understanding of how biosorbent material proceeds.

scholarly journals Insights into the Recent Use of Modified Adsorbents in Removing Heavy Metal Ions from Aqueous Solution

2021 ◽  
Vol 12 (2) ◽  
pp. 1884-1898
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Metal Ion ◽  
Heavy Metal Ions ◽  
Metal Removal ◽  
Low Cost ◽  
Ion Concentration ◽  
Future Research ◽  
Batch Tests

Natural water gets contaminated with heavy metal ions because of industrial effluents' discharge into the aquatic environment. As these heavy metal ions cause various health hazards, they should be removed from the aqueous solution. Heavy metal ion concentration in the aqueous solution is very less, so conventional metal removal and recovery processes cannot be applied here. The adsorption method is a great alternative to all these processes as it is a cost-effective and easy method. The use of natural, low-cost materials as adsorbents is eco-friendly also. However, metal uptake capacity of low-cost materials is very less. So, modification is required for low-cost materials to increase their efficiency. In the present review, different modification procedures adopted by different researchers have been discussed. Different low-cost materials used are sawdust, fruit and vegetable wastes, soil, minerals, etc. The modifying agents are heat, acids, bases, and other chemicals. Nevertheless, most of the studies are limited to batch tests only. Future research should be carried out on the extension of batch tests to column study for the large-scale treatment of contaminated water, and the cost of modification procedures and their impact on the environment should also be assessed.

scholarly journals Surface modification of biomaterials based on cocoa shell with improved nitrate and Cr(vi) removal

RSC Advances ◽  
2020 ◽  
Vol 10 (34) ◽  
pp. 20009-20019
Author(s):  
P. Nkuigue Fotsing ◽  
E. Djoufac Woumfo ◽  
S. Mezghich ◽  
M. Mignot ◽  
N. Mofaddel ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Surface Modification ◽  
Hexavalent Chromium ◽  
Low Cost ◽  
Efficient Removal ◽  
Cocoa Shell

The present work addresses the development of simple, low-cost and eco-friendly cocoa-shell-based materials for efficient removal of heavy metal hexavalent chromium (Cr(vi)), and toxic nitrate (NO3−) from aqueous solution.

scholarly journals Removal of chromium(vi) from polluted wastewater by chemical modification of silica gel with 4-acetyl-3-hydroxyaniline

RSC Advances ◽  
2019 ◽  
Vol 9 (64) ◽  
pp. 37403-37414 ◽  
Author(s):  
Ali Bilgiç ◽  
Aysel Çimen
Keyword(s):  
Heavy Metal ◽  
Wastewater Treatment ◽  
Chemical Modification ◽  
Silica Gel ◽  
Metal Removal ◽  
Low Cost ◽  
Heavy Metal Removal ◽  
Chromium Vi ◽  
Polluted Wastewater ◽  
Wastewater Treatment Systems

Use of a newly synthesized Si-CPTS-AHAP adsorbent in the removal of Cr(vi) ions in wastewater treatment systems may potentially lead to low cost and highly efficient heavy metal removal.

Low-cost synthesis of metal oxide nanoparticles and their application in adsorption of commercial dye and heavy metal ion in aqueous solution

2013 ◽  
Vol 246 ◽  
pp. 125-136 ◽  
Author(s):  
K. Yogesh Kumar ◽  
H.B. Muralidhara ◽  
Y. Arthoba Nayaka ◽  
J. Balasubramanyam ◽  
H. Hanumanthappa
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Oxide ◽  
Metal Ion ◽  
Low Cost ◽  
Metal Oxide Nanoparticles ◽  
Heavy Metal Ion ◽  
Oxide Nanoparticles
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