Effects of substrate types on the transformation of heavy metal speciation and bioavailability in an anaerobic digestion system

2021 ◽  
Vol 101 ◽  
pp. 361-372
Author(s):  
Xiarong Zheng ◽  
Kuanhuai Wu ◽  
Pengju Sun ◽  
Siyu Zhouyang ◽  
Yuanpeng Wang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Anaerobic Digestion ◽  
Metal Speciation ◽  
Heavy Metal Speciation ◽  
Substrate Types

Comparison of Heavy Metal Speciation of Sludge During Mesophilic and Thermophilic Anaerobic Digestion

2019 ◽  
Vol 11 (6) ◽  
pp. 2651-2660 ◽  
Author(s):  
Tianfeng Wang ◽  
Ziyu Tang ◽  
Yandong Guo ◽  
Xinyun Zhang ◽  
Qiyong Yang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Anaerobic Digestion ◽  
Metal Speciation ◽  
Heavy Metal Speciation ◽  
Thermophilic Anaerobic Digestion

HEAVY METAL SPECIATION IN BOTTOM SEDIMENTS OF THE VYSHNEVOLOTSKY RESERVOIR

2018 ◽  
pp. 46-54
Author(s):  
O. A. Lipatnikova
Keyword(s):  
Heavy Metal ◽  
Organic Matter ◽  
Bottom Sediments ◽  
Metal Speciation ◽  
Organic Matter Content ◽  
Water Reservoir ◽  
Matter Content ◽  
Heavy Metal Speciation ◽  
Mobile Forms ◽  
Manganese Hydroxides

The study of heavy metal speciation in bottom sediments of the Vyshnevolotsky water reservoir is presented in this paper. Sequential selective procedure was used to determine the heavy metal speciation in bottom sediments and thermodynamic calculation — to determine ones in interstitial water. It has been shown that Mn are mainly presented in exchangeable and carbonate forms; for Fe, Zn, Pb и Co the forms are related to iron and manganese hydroxides is played an important role; and Cu and Ni are mainly associated with organic matter. In interstitial waters the main forms of heavy metal speciation are free ions for Zn, Ni, Co and Cd, carbonate complexes for Pb, fulvate complexes for Cu. Effects of particle size and organic matter content in sediments on distribution of mobile and potentially mobile forms of toxic elements have been revealed.

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