Amelioration of Bauxite Residues by Sequential Slurry Carbonation

2021 ◽  
Vol 10 (1) ◽  
pp. 20190240
Author(s):  
Ganaraj Kuntikana ◽  
Sayeeda Syed ◽  
Devendra Narain Singh ◽  
Sagar S. Pandit ◽  
Nageswar Kapuri
Keyword(s):  
Bauxite Residues

Reducing Potential Leaching of Phosphorus, Heavy Metals, and Fecal Coliform From Animal Wastes Using Bauxite Residues

2010 ◽  
Vol 214 (1-4) ◽  
pp. 241-252 ◽  
Author(s):  
Jim J. Wang ◽  
Hailin Zhang ◽  
Jackie L. Schroder ◽  
Theophilus K. Udeigwe ◽  
Zengqiang Zhang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Fecal Coliform ◽  
Animal Wastes ◽  
Reducing Potential ◽  
Bauxite Residues

Effects of binding materials on microaggregate size distribution in bauxite residues

2016 ◽  
Vol 23 (23) ◽  
pp. 23867-23875 ◽  
Author(s):  
Feng Zhu ◽  
Nan Huang ◽  
Shengguo Xue ◽  
William Hartley ◽  
Yiwei Li ◽  
...  
Keyword(s):  
Size Distribution ◽  
Bauxite Residues

scholarly journals Microbial Diversity in Engineered Haloalkaline Environments Shaped by Shared Geochemical Drivers Observed in Natural Analogues

2015 ◽  
Vol 81 (15) ◽  
pp. 5026-5036 ◽  
Author(s):  
Talitha C. Santini ◽  
Lesley A. Warren ◽  
Kathryn E. Kendra
Keyword(s):  
Community Structure ◽  
Microbial Diversity ◽  
Fungal Community ◽  
Soda Lakes ◽  
Bauxite Residue ◽  
Environmental Parameters ◽  
Total Alkalinity ◽  
Content Type ◽  
Natural Analogues ◽  
Bauxite Residues

ABSTRACTMicrobial communities in engineered terrestrial haloalkaline environments have been poorly characterized relative to their natural counterparts and are geologically recent in formation, offering opportunities to explore microbial diversity and assembly in dynamic, geochemically comparable contexts. In this study, the microbial community structure and geochemical characteristics of three geographically dispersed bauxite residue environments along a remediation gradient were assessed and subsequently compared with other engineered and natural haloalkaline systems. In bauxite residues, bacterial communities were similar at the phylum level (dominated byProteobacteriaandFirmicutes) to those found in soda lakes, oil sands tailings, and nuclear wastes; however, they differed at lower taxonomic levels, with only 23% of operational taxonomic units (OTUs) shared with other haloalkaline environments. Although being less diverse than natural analogues, bauxite residue harbored substantial novel bacterial taxa, with 90% of OTUs nonmatchable to cultured representative sequences. Fungal communities were dominated byAscomycotaandBasidiomycota, consistent with previous studies of hypersaline environments, and also harbored substantial novel (73% of OTUs) taxa. In bauxite residues, community structure was clearly linked to geochemical and physical environmental parameters, with 84% of variation in bacterial and 73% of variation in fungal community structures explained by environmental parameters. The major driver of bacterial community structure (salinity) was consistent across natural and engineered environments; however, drivers differed for fungal community structure between natural (pH) and engineered (total alkalinity) environments. This study demonstrates that both engineered and natural terrestrial haloalkaline environments host substantial repositories of microbial diversity, which are strongly shaped by geochemical drivers.

Effectiveness of Bauxite Residues in Immobilizing Contaminants in Manure-Amended Soils

Soil Science ◽  
2009 ◽  
Vol 174 (12) ◽  
pp. 676-686 ◽  
Author(s):  
Theophilus K. Udeigwe ◽  
Jim J. Wang ◽  
Hailin Zhang
Keyword(s):  
Amended Soils ◽  
Bauxite Residues

Multi-functional honeycomb ceramic materials produced from bauxite residues

2014 ◽  
Vol 59 ◽  
pp. 333-338 ◽  
Author(s):  
Shaoxin Yang ◽  
Yihe Zhang ◽  
Jiemei Yu ◽  
Taizhong Huang ◽  
Qi Tang ◽  
...  
Keyword(s):  
Ceramic Materials ◽  
Honeycomb Ceramic ◽  
Bauxite Residues

Indicators of soil formation in restored bauxite residues

2013 ◽  
Vol 58 ◽  
pp. 63-68 ◽  
Author(s):  
R. Courtney ◽  
T. Harrington ◽  
K.A. Byrne
Keyword(s):  
Soil Formation ◽  
Bauxite Residues

Reductive Smelting of Greek Bauxite Residues for Iron Production

2011 ◽  
pp. 113-117 ◽  
Author(s):  
A. Xenidis ◽  
C. Zografidis ◽  
I. Kotsis ◽  
D. Boufounos
Keyword(s):  
Iron Production ◽  
Bauxite Residues
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