Heavy metal removal from sludge with organic chelators: Comparative study of N, N-bis(carboxymethyl) glutamic acid and citric acid

2016 ◽  
Vol 166 ◽  
pp. 341-347 ◽  
Author(s):  
Fidèle Suanon ◽  
Qian Sun ◽  
Biaou Dimon ◽  
Daouda Mama ◽  
Chang-Ping Yu
Keyword(s):  
Heavy Metal ◽  
Citric Acid ◽  
Comparative Study ◽  
Glutamic Acid ◽  
Metal Removal ◽  
Heavy Metal Removal

A review on progress of heavy metal removal using biosorbents of poly-γ-glutamic acid

2016 ◽  
Author(s):  
Rui-Min MU ◽  
Zhe ZHANG ◽  
Min-Xiang WANG ◽  
Dong LIU ◽  
Jin-He WANG ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Glutamic Acid ◽  
Metal Removal ◽  
Heavy Metal Removal

scholarly journals The Effect of Crosslinker and Pore Generated on Selective Adsorbent (Cu2+) based on Grafting of Acrylic Acid onto Cassava Starch

2015 ◽  
Vol 9 (7) ◽  
pp. 37
Author(s):  
Judy R. B. Witono ◽  
Henrietta Henrietta ◽  
Y. I. P Arry Miryanti
Keyword(s):  
Heavy Metal ◽  
Citric Acid ◽  
Acrylic Acid ◽  
Water Absorption ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Cassava Starch ◽  
Metal Adsorption ◽  
Acid Modification ◽  
Release Process

The technology development in many industries nowadays, such as electronic industry produces heavy metal wastes which may pollute our environment. The use of adsorbent as a heavy metal removal from soil and water is one of the efficient process which can be considered to be used. In addition the release of the adsorbate becomes an important way as well because usually those heavy metals still have a high value. The objective of this research is to develop adsorbent based on cassava starch. So, the release process will become easier and will not produce another waste. The adsorbent was produced through the grafting of acrylic acid onto cassava starch by using Fenton initiator. To construct a stable 3-D network, the crosslinker (CL) N,N’- methylenebisacrylamide was added. The variable observed were the amount of CL added (0.5%; 1.5%; 2.5% and 3.5%) and the treatment of generating more pores on starch copolymer. The treatments on starch copolymer observed were single freezing, second freezing, and citric acid modification and carbonization methods. Analysis performed on the adsorbent was % add-on, water absorption and metal adsorption (especially Cu2+ ion) capacity. The result showed that the used of 2.5% CL produced the highest add-on (47.66 %), the highest water absorption capacity and the highest metal adsorption capacity (0.29g Cu2+/g adsorbent) The citric acid modification also produced the highest pores on the adsorbent.

Heavy metal removal from sewage sludge under citric acid and electroosmotic leaching processes

2020 ◽  
Vol 242 ◽  
pp. 116822 ◽  
Author(s):  
Degang Ma ◽  
Meizhong Su ◽  
Jingjing Qian ◽  
Qian Wang ◽  
Fanyi Meng ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Citric Acid ◽  
Sewage Sludge ◽  
Metal Removal ◽  
Heavy Metal Removal

Comparative study on heavy metal removal from industrial effluents by various separation methods

2011 ◽  
Vol 35 (1-3) ◽  
pp. 242-246 ◽  
Author(s):  
Dóra Németh ◽  
Jalel Labidi ◽  
László Gubicza ◽  
Katalin Bélafi-Bakó
Keyword(s):  
Heavy Metal ◽  
Comparative Study ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Industrial Effluents
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