Dataset Information

Cuprous Oxide- or Copper-Coated Jute Stick Pieces at an Air-Water Interface for Prevention of Aerial Contamination in Potable Water.

ABSTRACT: Cuprous oxide and copper have been synthesized via the solvothermal process using basic copper carbonate as the source of copper. Pure Cu2O or Cu could be afforded by simply varying the solvent while keeping the temperature and time constant. In this study, copper-based materials were coated on jute stick pieces (JSP) in situ. Cu2O-coated JSP (Cu2O-JSP) and Cu-coated JSP (Cu-JSP) were characterized by powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM). Cu2O-JSP and Cu-JSP were found to be active against Escherichia coli NCIM 2931 (Gram-negative bacteria) and Staphylococcus aureus (Gram-positive bacteria). The antibacterial nature of the material and the buoyant nature of Cu2O-JSP and Cu-JSP were exploited to develop beaded necklace-like strands that could be floated on potable water to effectively prevent aerial contamination. Leaching of copper from both Cu2O-JSP and Cu-JSP into water was found to be below the permissible limit for copper in drinking water.

SUBMITTER: Rai R

PROVIDER: S-EPMC6941366 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Cuprous Oxide- or Copper-Coated Jute Stick Pieces at an Air-Water Interface for Prevention of Aerial Contamination in Potable Water.

Rai Randhir R Gummadi Sathyanarayana N SN Chand Dillip Kumar DK

ACS omega 20191217 27

Cuprous oxide and copper have been synthesized via the solvothermal process using basic copper carbonate as the source of copper. Pure Cu2O or Cu could be afforded by simply varying the solvent while keeping the temperature and time constant. In this study, copper-based materials were coated on jute stick pieces (JSP) in situ. Cu2O-coated JSP (Cu2O-JSP) and Cu-coated JSP (Cu-JSP) were characterized by powder X-ray diffraction (PXRD) and scanning electron microsco ...[more]

PMID: 31909334

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Project description:Continuous decline in potable water sources has raised serious concerns over human health. Developing countries are the most affected in this regard due to a lack of proper hygiene maintenance. Sikkim, an Eastern Himalayan state with mountains as the predominant topological features, harbors several perennial natural springs. Spring water is the primary source of potable water for the population in four districts of the state viz. East, West, North and South. Recent outbreaks of water-borne diseases and the relative lack of scientific studies on its potential correlation with the water quality of the area have educed this study. Physicochemical parameters of springs, community reservoirs, and household water were analyzed by ICP-MS and multi probe meter. Using the membrane filtration method, the microbial quality of the water samples during different seasons was assessed, primarily evaluating the presence of fecal indicators viz. Escherichia coli, total coliform and Enterococcus. The seasonal risk category of the water sources was also determined. Most of the physicochemical parameters of the spring water were within the permissible limits of WHO standards. However, water from four districts was recorded with traces of toxic heavy metals like mercury (0.001-0.007 mg/l), lead (0.001-0.007 mg/l), and selenium (0.526-0.644 mg/l), which are above the permissible limits of WHO. All the spring water samples were categorized as Mg-HC O 3 - type and can be predicted as shallow fresh ground water based on the piper analysis. Microbial confirmatory testing indicated severe fecal contamination of water sources with high counts of total coliform (TC), Escherichia coli (EC) and Enterococcus (EN). The highest level of TC was recorded from West Sikkim (37.26 cfu/100 ml) and the lowest in North Sikkim (22.13 cfu/100 ml). The highest level of contamination of E. coli and Enterococcus was found in East Sikkim (EC = 8.7 cfu/100 ml; EN = 2.08 cfu/100 ml) followed by South Sikkim (EC = 8.4 cfu/100 ml; EN = 2.05 cfu/100 ml). There was a significant positive correlation between the contamination levels of the spring water and the community reservoir tank. As far as the seasonal variation is concerned, the rainy season showed the most contamination with coliform correlating with a high incidence of different water-borne diseases (East = 86%; West = 100%; South = 100%; North = 80%).

Dataset Information

Cuprous Oxide- or Copper-Coated Jute Stick Pieces at an Air-Water Interface for Prevention of Aerial Contamination in Potable Water.

Publications

Cuprous Oxide- or Copper-Coated Jute Stick Pieces at an Air-Water Interface for Prevention of Aerial Contamination in Potable Water.

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