Heavy-Metal Remediation by a Fungus as a Means of Production of Lead and Cadmium Carbonate Crystals

Langmuir ◽  
2005 ◽  
Vol 21 (16) ◽  
pp. 7220-7224 ◽  
Author(s):  
Ambarish Sanyal ◽  
Debabrata Rautaray ◽  
Vipul Bansal ◽  
Absar Ahmad ◽  
Murali Sastry
Keyword(s):  
Heavy Metal ◽  
Cadmium Carbonate ◽  
Lead And Cadmium ◽  
Heavy Metal Remediation ◽  
Means Of Production

scholarly journals Relationship between heavy metal exposure and type 2 diabetes: a large-scale retrospective cohort study using occupational health examinations

BMJ Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. e039541
Author(s):  
Jun Ho Ji ◽  
Mi Hyeon Jin ◽  
Jung-Hun Kang ◽  
Soon Il Lee ◽  
Suee Lee ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Type 2 Diabetes ◽  
Heavy Metal ◽  
Cohort Study ◽  
Retrospective Cohort ◽  
Metal Exposure ◽  
Heavy Metal Exposure ◽  
Lead And Cadmium

ObjectivesTo investigate the associations between heavy metal exposure and serum ferritin levels, physical measurements and type 2 diabetes mellitus (DM).DesignA retrospective cohort study.SettingChangwon, the location of this study, is a Korean representative industrial city. Data were obtained from medical check-ups between 2002 and 2018.ParticipantsA total of 34 814 male subjects were included. Of them, 1035 subjects with lead exposure, 200 subjects with cadmium exposure and the 33 579 remaining were assigned to cohort A, cohort B and the control cohort, respectively. Data including personal history of alcohol and smoking, age, height, weight, the follow-up duration, haemoglobin A1c (HbA1c), fasting blood sugar (FBS), ferritin levels, and lead and cadmium levels within 1 year after exposure were collected.Primary outcome measureIn subjects without diabetes, changes in FBS and HbA1c were analysed through repeated tests at intervals of 1 year or longer after the occupational exposure to heavy metals.ResultsIn Cohort A, DM was diagnosed in 33 subjects. There was a significant difference in lead concentrations between the subjects diagnosed with DM and those without DM during the follow-up period (3.94±2.92 mg/dL vs 2.81±2.03 mg/dL, p=0.002). Simple exposure to heavy metals (lead and cadmium) was not associated with DM in Cox regression models (lead exposure (HR) 1.01, 95% CI: 0.58 to 1.77, p 0.971; cadmium exposure HR 1.48, 95% CI: 0.61 to 3.55, p=0.385). Annual changes in FBS according to lead concentration at the beginning of exposure showed a positive correlation (r=0.072, p=0.032).ConclusionOur findings demonstrated that simple occupational exposure to heavy metals lead and cadmium was not associated with the incidence of DM. However, lead concentrations at the beginning of the exposure might be an indicator of DM and glucose elevations.

Heavy Metal Remediation Using Functionalized Mesoporous Silicas with Controlled Macrostructure

Langmuir ◽  
2001 ◽  
Vol 17 (2) ◽  
pp. 528-533 ◽  
Author(s):  
Robert I. Nooney ◽  
Mohan Kalyanaraman ◽  
Gordon Kennedy ◽  
Edward J. Maginn
Keyword(s):  
Heavy Metal ◽  
Mesoporous Silicas ◽  
Heavy Metal Remediation

scholarly journals A Review on in vitro and in vivo Bioremediation Potential of Environmental and Probiotic Species of Bacillus and other Probiotic Microorganisms for Two Heavy Metals, Cadmium and Nickel

2019 ◽  
Vol 16 (1) ◽  
pp. 01-13 ◽  
Author(s):  
Pragya Goyal ◽  
Pranoti Belapurkar ◽  
Anand Kar
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Industrial Effluents ◽  
Eukaryotic Cell ◽  
Genus Bacillus ◽  
Form Of Life ◽  
Heavy Metal Remediation ◽  
Remediation Strategies

Microbial assisted remediation is the ray of hope in the current scenario of tremendous heavy metal pollution. The indiscriminate release of heavy metal laden industrial effluents in the water bodies and soil is now manifesting itself in the form of life threatening health hazards to humans. The conventional heavy metal remediation strategies are not only expensive but are ineffective in low metal concentrations. Microbial assisted remediation of heavy metals has come forward as the cheap and easy alternative. Amongst the various bacterial genera actively involved in bioremediation of cadmium and nickel in the environment, genus Bacillus has shown remarkable ability in this respect owing to its various biochemical and genetic pathways. It can perform bioremediation using multiple mechanisms including biosorption and bioaccumulation. This genus has also been able to reduce toxicity caused by cadmium and nickel in eukaryotic cell lines and in mice, a property also found in probiotic genera like Lactobacillus and Bifidobacterium. This paper reviews the role of environmentally present and known probiotic species of genus Bacillus along with different probiotic genera for their various mechanisms involved for remediation of cadmium and nickel.

scholarly journals Deciphering lead and cadmium stripping peaks for porous antimony deposited electrodes

2016 ◽  
Vol 34 (2) ◽  
pp. 233-241 ◽  
Author(s):  
Aqeel Ahmad Taimoor
Keyword(s):  
Heavy Metal ◽  
Photoelectron Spectroscopy ◽  
Metal Ion ◽  
Porous Electrodes ◽  
Electrochemical Sensing ◽  
Ex Situ ◽  
Electrochemical Tests ◽  
Diffusion Limitations ◽  
Lead And Cadmium ◽  
Cadmium And Lead

AbstractCadmium and lead are generally taken as model heavy metal ions in water to scale the detection limit of various electrode sensors, using electrochemical sensing techniques. These ions interact with the electrochemically deposited antimony electrodes depending on the diffusion limitations. The phenomenon acts differently for the in-situ and ex-situ deposition as well as for porous and non-porous electrodes. A method has been adopted in this study to discourage the stripping and deposition of the working ions (antimony) to understand the principle of heavy metal ion detection. X-ray photoelectron spectroscopy (XPS) technique was used to establish the interaction between the working and dissolved ions. In addition to the distinct peaks for each analyte, researchers also observed a shoulder peak. A possible reason for the presence of this peak was provided. Different electrochemical tests were performed to ascertain the theory on the basis of the experimental observations.

Single cyanobacteria@silica porous microcapsules via a sol–gel layer by layer for heavy-metal remediation

2018 ◽  
Vol 89 (1) ◽  
pp. 244-254 ◽  
Author(s):  
Cyrille Delneuville ◽  
Emeric P. Danloy ◽  
Li Wang ◽  
Bao-Lian Su
Keyword(s):  
Heavy Metal ◽  
Sol Gel ◽  
Layer By Layer ◽  
Heavy Metal Remediation ◽  
Gel Layer

Evaluation of acute toxicity of zinc, lead and cadmium to zooplanktonic community in upper Berach river system, Rajasthan, India

2012 ◽  
Vol 2 (1) ◽  
pp. 20-26
Author(s):  
Nadim Chishty ◽  
Anil Tripathi ◽  
Madhusudan Sharma
Keyword(s):  
Heavy Metal ◽  
Acute Toxicity ◽  
Fresh Water ◽  
River Basin ◽  
Laboratory Experiments ◽  
River System ◽  
Daphnia Lumholtzi ◽  
Lead And Cadmium ◽  
Sensitivity Pattern ◽  
Static Bioassay

Current study investigated through static bioassay, the acute toxicity of Zinc,Lead and Cadmium to fresh water zooplankters in the upper Berach riversystem which is a part of Gangetic river system. The river basin stretchesfrom Madar tank to Sarjana tank with a total length of 46 Km, including ninewater bodies i.e. Bada madar tank (73‹36f0ffE and 24‹38f0hN ), Chhotamadar tank, Fateh sagar lake, Udaisagar lake, Up]stream pond (Bichhdi]I),Down]stream pond(Bichhdi]II), Gadwa, Daroli and Sarjana tank (73‹ 57f10hEand 24‹14f30h N). Whole zooplanktonic communities were exposed to different heavy metal stresses. Exposed zooplanktonic community included nine planktonic forms i.e. Heliodiaptomus viduus, Mesocyclops hyalinus, Heterocypris, Daphnia lumholtzi, Moina, Brachionus, Monostyla, Filinia. Cadmium was found to be most toxic and Zinc was least toxic to zooplankton. Ostracods and Cyclops were resistant forms and rotifers were sensitive forms in relation to metallic exposure. Sensitivity pattern observed during laboratory experiments was found to be in accordance with biodiversity variation of zooplankton in different ponds of Berach river system.

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