Heavy metals and arsenic
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Ebook "Water treatment technologies for the removal of high-toxicity pollutants" process requires interdisciplinary approach; it is critically important to stimulate interactions between medical doctors, chemists, physicist, materials scientists, engineers and policy makers, which are already experienced in their specific areas. It is also our ethical obligation to preserve existing water resources and existing eco systems enhancing their biodiversity.
338p giangdongdinh 28-05-2024 1 1 Download
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This paper aims to evaluate the spatiotemporal distribution of six heavy metals (arsenic - As, cadmium - Cd, mercury - Hg, lead - Pb, zinc - Zn, and iron - Fe) in water and sediment environment and assess the pollution status of the heavy metals based on individual metals and overall metal contamination levels as well as a multiple metals index for the monitoring and sustainable management of estuarine environment of Ba Ria-Vung Tau Province.
16p dianmotminh02 03-05-2024 2 1 Download
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Ebook "Detoxification of heavy metals" include: sources of heavy metals contaminants in soils; plant species that can grow on contaminated soils; the phytoremediation of contaminated soils; tolerance, accumulation and detoxification mechanisms of zinc, copper, arsenic, cadmium and vanadium in plants; the critical role of sulfur metabolism in heavy metal tolerance;...
468p tachieuhoa 28-01-2024 7 2 Download
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The pollution of heavy metals in ore mining areas is severe at present in Vietnam as well as in the world. Assessing the level and risk of contamination of arsenic (As) in the soil in the ore mining area is essential for environmental management.
9p viironman 02-06-2023 5 2 Download
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Clean water for drinking and cooking has been a serious issue in rural areas of Vietnam, which is mainly due to high-cost treatment of the available water sources in such areas. In order to reduce the treatment cost, iron impregnated ceramic granules (IICGs) was synthesized using a mixture of locally available montmorillonite and crushed rice husk (with the rice husk size < 0.2 mm, IICGs size 0.2 mm – 0.45 mm).
7p vidoctorstrange 06-05-2023 2 1 Download
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The study aimed to evaluate the concentration of heavy metals in the soil of industrial zones in An Giang province. Soil samples were collected at Binh Hoa and Binh Long industrial parks with 20 monitoring positions in the topsoil. The heavy metals including Copper (Cu), Zinc (Zn), Lead (Pb), Cadmium (Cd) and Arsenic (As) were analyzed by atomic absorption spectroscopy.
10p viwmotors 13-12-2022 3 2 Download
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Haliaeetus albicilla is a top raptor that can be used as a model for contaminants transfer in trophic chain. In this study we studied the accumulation of three contaminants on feathers from breeding individuals of white-tailed sea-eagle collected between 2012 and 2018 in the Danube Delta Biosphere Reserve and its surroundings. The concentrations of two heavy metals (chromium, cadmium) and one metalloid (arsenic) were determined by inductively coupled mass spectrometry. Chromium concentrations ranged from 0.32 to 1.33 mg/kg for juveniles and between 0.68 to 2.
7p dolomite36 30-12-2021 4 0 Download
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Vital factor towards increased plant growth was the amount of IAA secreted by the organism (i.e. 2.65 mg IAA/100 ml of the culture filtrate) which is reasonably high in comparison to earlier reports available. Furthermore, PSB has also demonstrated bioremediation potential against harmful heavy metals such as copper, lead, nickel and arsenic by tolerating upto 25 mM indicating it’s prospective in remediating heavy metal contaminated agricultural fields.
7p mudbound 10-12-2021 7 1 Download
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This study, tAs is the only element that needs to be further investigated from the relatively high concentration in agricultural soil samples. There were seven out of eight rice samples which had the As level exceeded the Codex standard for polished rice, the inorganic Arsenic (iAs) is also needed to be analyzed for further conclusion.
13p nguaconbaynhay10 18-01-2021 15 2 Download
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The aim of this study is to investigate the adsorption capacity of the adsorbent modified from Ban Cuon iron ore sludge in both batches and fixed-bed column experiments.
13p nguyentanloc09 17-10-2020 20 0 Download
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The present study was undertaken to assess the damage caused by heavy metals, arsenic and chromium in slaughtered buffaloes. The assessment of adverse effects of these heavy metals in tissues (Liver, kidney, pancreas, and ovary) and blood have been determined by the expression of metallothionein, antioxidants and biochemical parameters. Tissue and blood samples were collected from buffaloes (n=50) from local abattoir to assess the level of arsenic and chromium.
14p nguaconbaynhay7 15-08-2020 8 2 Download
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This study aims to understand the concentrations of selected heavy metals including arsenic, iron, manganese, cadmium and mercury in groundwater used for domestic purposes in Dak Nong Province of Viet Nam. A total number of 572 groundwater samples including 61 duplicates were collected during October, 2018 – April, 2019. The collected samples were measured onsite for pH and preserved with 2 % HNO3 until pH < 2 before being analyzed in the laboratory for heavy metals by inductively coupled plasma mass spectrometry.
8p angicungduoc5 13-06-2020 9 0 Download
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The aim of this study was to determine the levels of cadmium (Cd), chromium (Cr), lead (Pb), arsenic (As) and selenium (Se) in (1) fresh tea leaves, (2) processed (black) tea leaves and (3) soils from tea plantations originating from Bangladesh.
13p vijiraiya2711 27-05-2020 28 1 Download
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The present study was carried out to envisage the impact of heavy metal i.e. arsenic on the gut bacterial population of epigeic earthworm species, E. eugeniae. For this purpose, three different doses (1.04, 2.09 and 3.13% w/v) of sodium arsenate (Na2HAsO47H2O) were used to treat adult earthworms.
5p quenchua4 06-04-2020 15 1 Download
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Simultaneous removal of some heavy metals and arsenic from aqueous solutions by phragmites australis
In this study, Phragmites australis (common reed) was transplanted into solutions added with different concentrations of Mn, Zn, Cd, Pb, and As for 30 days in the laboratory (10 days of incubation and repeated three times without changing the plant) to assess the removal of these metals and its accumulation in the plant. The results showed that high removal efficiency was achieved by growing P.australis.
6p cumeo3000 01-08-2018 29 1 Download
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There is a commonly held myth in our society that anything that is “natural” is good, wholesome, and healthful, whereas anything that is “synthetic” is bad, toxic, and harmful. The mere mention of the word chemical is enough to strike terror into the heart of any food faddist. This attitude is, at best, naïve and, at worst, dangerous.
354p phoebe75 01-02-2013 71 13 Download