Recent Advances in Phytoremediation of Toxic Metals from Contaminated Sites: A Road Map to a Safer Environment

2019 ◽  
pp. 77-112
Author(s):  
Mukesh Kumar Awasthi ◽  
Di Guo ◽  
Sanjeev Kumar Awasthi ◽  
Quan Wang ◽  
Hongyu Chen ◽  
...  
Keyword(s):  
Toxic Metals ◽  
Contaminated Sites ◽  
Road Map ◽  
Recent Advances

Bacterial Remediation of Chromium From Industrial Sludge

2021 ◽  
pp. 97-125
Author(s):  
Dipankar Roy ◽  
Arup Kumar Mitra
Keyword(s):  
Heavy Metals ◽  
Bacillus Cereus ◽  
Toxic Metals ◽  
Growth Pattern ◽  
Contaminated Sites ◽  
Total Chromium ◽  
Industrial Sludge ◽  
Gram Negative ◽  
Living Organisms ◽  
Chromium Uptake

Chromium-like heavy toxic metals seriously influence the metabolism of living organisms and cause permanent threatening of health. Microorganisms can help to detoxify those hazardous heavy metals in the environment by the process of bioremediation. Two bacterial genera were isolated from industrial sludge designated P1 and P2. From the 16srRNA study, it is revealed that P1 is Bacillus cereus and P2 is Enterobacter sp. They are deposited in NCMR and NCBI and received the accession no. MCC 3868 for P1 and MCC 3788 for P2. P1 is gram positive, motile, and P2 is gram negative, motile. Eighteen antibiotics have been taken for antibiotic assay; P1 is resistant to 12; P2 is resistant to 8 antibiotics. For growth pattern analysis in chromium, three parameters have been selected, and they are temperature, pH, and biomass. In LD50 and above parameters, total chromium uptake by those bacteria in stressed conditions have been recorded. The two bacteria are not antagonistic to each other so they are used to bioremediate chromium from their contaminated sites and also treated as consortium.

Recent Advances in Phytoremediation of Soil Contaminated by Industrial Waste: A Road Map to a Safer Environment

2019 ◽  
pp. 207-221 ◽  
Author(s):  
Cassiano A. R. Bernardino ◽  
Claudio F. Mahler ◽  
Paula Alvarenga ◽  
Paula M. L. Castro ◽  
Eduardo Ferreira da Silva ◽  
...  
Keyword(s):  
Industrial Waste ◽  
Road Map ◽  
Recent Advances

An overview of the recent advances in functionalization biomass adsorbents for toxic metals removal

2020 ◽  
Vol 38 ◽  
pp. 100308
Author(s):  
Wanqi Zhang ◽  
Huaqiong Duo ◽  
Shujing Li ◽  
Yuhong An ◽  
Zhangjing Chen ◽  
...  
Keyword(s):  
Toxic Metals ◽  
Recent Advances ◽  
Metals Removal

New Technologies for Toxic Metals Removal from Contaminated Sites

2010 ◽  
Vol 4 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Jean-F. Blais ◽  
Nathalie Meunier ◽  
Guy Mercier
Keyword(s):  
Toxic Metals ◽  
New Technologies ◽  
Contaminated Sites ◽  
Metals Removal

scholarly journals Oyster Shell Powder, Zeolite and Red Mud as Binders for Immobilising Toxic Metals in Fine Granular Contaminated Soils (from Industrial Zones in South Korea)

2021 ◽  
Vol 18 (5) ◽  
pp. 2530
Author(s):  
Cecilia Torres-Quiroz ◽  
Janith Dissanayake ◽  
Junboum Park
Keyword(s):  
Toxic Metals ◽  
Red Mud ◽  
Contaminated Soils ◽  
Low Cost ◽  
Oyster Shell ◽  
Artificial Soil ◽  
Contaminated Sites ◽  
Metal Mine ◽  
Oyster Shell Powder ◽  
Shell Powder

Low-cost absorbent materials have elicited the attention of researchers as binders for the stabilisation/solidification technique. As, there is a no comprehensive study, the authors of this paper investigated the performance of Oyster shell powder (OS), zeolite (Z), and red mud (RM) in stabilising heavy metals in three types of heavy metal-contaminated soils by using toxicity characteristic leaching procedure (TCLP). Samples were collected from surroundings of an abandoned metal mine site and from military service zone. Furthermore, a Pb-contaminated soil was artificially prepared to evaluate each binder (100× regulatory level for Pb). OS bound approximately 82% of Pb and 78% of Cu in real cases scenario. While Z was highly effective in stabilizing Pb in highly polluted artificial soil (>50% of Pb) at lower dosages than OS and RM, it was not effective in stabilising those metals in the soils obtained from the contaminated sites. RM did not perform consistently stabilising toxic metals in soils from contaminated sites, but it demonstrated a remarkable Pb-immobilisation under dosages over than 5% in the artificial soil. Further, authors observed that OS removal efficiency reached up to 94% after 10 days. The results suggest that OS is the best low-cost adsorbent material to stabilize soils contaminated with toxic metals considered in the study.

scholarly journals The Genomes of All Angiosperms: A Call for a Coordinated Global Census

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
David W. Galbraith ◽  
Jeffrey L. Bennetzen ◽  
Elizabeth A. Kellogg ◽  
J. Chris Pires ◽  
Pamela S. Soltis
Keyword(s):  
Genomic Data ◽  
White Paper ◽  
Flowering Plants ◽  
Timely Manner ◽  
Road Map ◽  
Recent Advances ◽  
Near Term ◽  
Complete Genomic

Recent advances in biological instrumentation and associated experimental technologies now permit an unprecedented efficiency and scale for the acquisition of genomic data, at ever-decreasing costs. Further advances, with accompanying decreases in cost, are expected in the very near term. It now becomes appropriate to discuss the best uses of these technologies in the context of the angiosperms. This white paper proposes a complete genomic census of the approximately 500,000 species of flowering plants, outlines the goals of this census and their value, and provides a road map towards achieving these goals in a timely manner.

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