Removal of Heavy Metal Ions by using Calcium Carbonate Extracted from Starfish Treated by Protease and Amylase

2011 ◽  
Vol 2 (2) ◽  
pp. 75-82 ◽  
Author(s):  
Kyong-Soo Hong ◽  
Hak Myoung Lee ◽  
Jong Seong Bae ◽  
Myoung Gyu Ha ◽  
Jong Sung Jin ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Calcium Carbonate ◽  
Metal Ions ◽  
Heavy Metal Ions

Preparation of vaterite calcium carbonate granules from discarded oyster shells as an adsorbent for heavy metal ions removal

Chemosphere ◽  
2020 ◽  
Vol 254 ◽  
pp. 126903 ◽  
Author(s):  
Pei-Ying Lin ◽  
Hao-Ming Wu ◽  
Shu-Ling Hsieh ◽  
Jun-Sian Li ◽  
Chengdi Dong ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Calcium Carbonate ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Heavy Metal Ions Removal ◽  
Metal Ions Removal

scholarly journals Adsorption of divalent heavy metal ions on calcium carbonate (calcite)

2004 ◽  
Vol 53 (2) ◽  
pp. 101-107 ◽  
Author(s):  
Hitomi KOBAYASHI ◽  
Keiichi SATOH ◽  
Kiyoshi SAWADA
Keyword(s):  
Heavy Metal ◽  
Calcium Carbonate ◽  
Metal Ions ◽  
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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