Denitrification and removal of heavy metals from waste water by immobilized microorganisms

1981 ◽  
Vol 6 (1) ◽  
pp. 3-13 ◽  
Author(s):  
R. P. Tengerdy ◽  
J. E. Johnson ◽  
J. Holló ◽  
J. Tóth
2016 ◽  
Vol 4 (12) ◽  
pp. 441-449
Author(s):  
Ali Mcheik ◽  
◽  
Wassef ElKhatib ◽  
Akram Hijazi ◽  
Kamal Hariri ◽  
...  

2010 ◽  
Vol 5 (2) ◽  
pp. 299-304 ◽  
Author(s):  
S. Murugavelh ◽  
D. Vinothkumar

2021 ◽  
Vol 1913 (1) ◽  
pp. 012088
Author(s):  
Aruna M Sudame ◽  
Manjusha Ugale ◽  
Ekta R Raut ◽  
Bharat Kapgate

2019 ◽  
pp. 152808371987127 ◽  
Author(s):  
Subhankar Maity ◽  
Ashish Dubey ◽  
Supriyo Chakraborty

With the development of industrialization and human activities, discharge of waste water containing heavy metals in the environment is increasing day by day. It causes serious threats to the human civilization and the flora and fauna in this earth. Conducting polymers like polypyrrole and polyaniline can be used for treating wastewater due to their inherent ion absorption properties. This article has been focused on the development of polypyrrole coated bio-composites and their potential about the removal of heavy metals from industrial wastewater. Adsorption process can be successfully employed to remove heavy metals from the wastewater by the treatment of water with polypyrrole-coated composites. It was reported in literature that the polypyrrole and polyaniline-coated adsorbents had good adsorption capacities for Mg, Fe, Cu, Cd, Pb, Zn, and Ni. Polypyrrole-coated saw dust, rice husk, chitin, and cellulosic materials could be able to remove Cr, Fe, Cu, and Zn from wastewater. This method would be a replacement for costly conventional methods of removing heavy metal ions from wastewater. It is expected that this method would be an alternative for waste water treatment which will benefit the industries in future.


2018 ◽  
Vol 144 ◽  
pp. 02021 ◽  
Author(s):  
Prathiksha P. Prabhu ◽  
Balakrishna Prabhu

The pollution of water due to various toxic components especially heavy metals are causing an adverse effect on the flora and fauna and also have a potential effect on the human well-being. Due to this there is an immediate requirement to find various techniques for the removal of lethal toxins in wastewater. Amongst all of the existing methods, adsorption is one of the most effective and efficient technique for the elimination of contaminants such as heavy metals from wastewater. The increasing number of research publications on adsorption of heavy metals using modified bentonite leads to the fact that there has been a surging importance in the production of a variety of economical adsorbents for water treatment. Outcome from the latest advances in using bentonites and modified bentonite shows the adaptable nature of the clay and its environment friendly nature. The present review shows the removal of heavy metals using modified bentonite. The main purpose of this review is to describe the flexible way of natural bentonite and modified bentonite and its ability to absorb array of inorganic pollutants, which are present in the waste water. It is apparent from the review that modified bentonite have displayed high removal potential for certain kind of inorganic contaminants from wastewater.


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