drinking water from surface water Articles
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Genotoxicity testing of samples generated during UV/H2O2 treatment of surface water for the production of drinking water using the Ames test
in vitro and the Comet assay and the SCE testin vivo UV/H2O2 treatment can be part of the process converting surface water to drinking water, but would pose a potential problem when resulting in genotoxicity. This study investigates the genotoxicity of samples collected from the water treatment plant Andijk, applying UV/H2O2 treatment with an electrical energy dose of 0.54 kWh/m3 and a H2O2 dose of 6 mg/l. Genotoxicity was tested in vitro using ...
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Enhancing climate adaptation capacity for drinking water treatment facilities
Conventional water treatment processes (e.g., coagulation, flocculation, sedimentation, and filtration) are widely used for producing drinking water from surface water sources. Transient, gradual, or abrupt changes in source water quality that could compromise treatment effectiveness can be triggered by climate and related meteorological events, accidental or intentional contamination, ...
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Risk assessment of haloacetic acids in the water supply of Tehran, Iran
Disinfection by-products are compounds occurring in drinking water as a result of reactions between disinfectants and impurities in raw water, and their occurrence has been a public health concern for the last four decades. Haloacetic acids (HAAs) are one of the major by-products of chlorination. The concentration and variation of HAAs was monitored in 540 samples taken from tap water in six ...
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Integrated Water Resources Management for meso-scale ungauged river basins in Russia
In the last 5 years Russia developed Schemes of Integrated Use and Protection of Water Objects (SKIOVO) aiming at remediating and maintaining water resources quality. The main limitation of the schemes is seen in their large spatial scale, which is determined by the available environmental monitoring data. The meso-scale catchments are usually ungauged, which does not allow monitoring and ...
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Drinking Water Treatment Process
Most drinking water comes from a surface water source, such as a lake or river, or a groundwater source, such as a well or spring. This water requires treatment before it can be safely consumed; the level to which the water is treated depends on the source of the water and also on federal regulations. In the United States, for example, the Safe Drinking Water Act was created by the Environmental ...
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Drinking Surface Water Pilot - Case Study
Bowen Island Municipality’s Cove Bay Water System (CBWS) treats surface water from Grafton Lake to drinking water. Historically, the lake water was treated with hypochlorite addition however this treatment is insufficient to meet the Canadian Drinking Water Quality Guidelines (CDWQG) for several parameters including protozoa, turbidity, manganese and colour. ...
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Removal of taste and odour from potable water by ozone and Powdered Activated Carbon (PAC)
The paper presents experimental evidence that selection and addition of an appropriate type of Powdered Activated Carbon (PAC) and alternatively or in combination ozonation of the water can be very effective in removal of both geosmin and 2-MIB from surface waters intended for supplying potable water. According to the experimental results, it was shown that the adsorptive capacity of the carbon ...
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The MIEX® Technology for Municipal Wastewater Treatment
The MIEX® Technology is designed for the removal of dissolved organic carbon (DOC). Until recently, the commercial application of the MIEX® Technology has been limited the treatment of potable water from surface or ground water bodies. The MIEX® Process is now being evaluated for application in municipal wastewater applications. An example of this is the use of the MIEX® Process for the ...
By Ixom
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Confirmation of the correlation between membrane fouling in microfiltration and biopolymer concentrations in various Japanese surface waters
A variety of surface waters used for drinking water sources were collected from different parts of Japan to investigate a correlation between the concentration of hydrophilic biopolymer (e.g. proteins and polysaccharides) in the feed water and membrane fouling in microfiltration. Hollow-fiber membranes made from polyvinylidene fluoride with a nominal pore size of 0.1 μm were used in the ...
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Regulatory Aspects of Direct Potable Reuse in California
Introduction California's water supplies are derived from a variety of sources, including local and imported surface water, groundwater, desalinated seawater, and recycled water. Water resources are becoming limited due to population increases, droughts, and reductions in imported water allocations. Furthermore, global climate change may exacerbate the problem in the future. Water recycling for ...
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Principal water contaminants that affect the productivity of your industrial organization
Many industrial plants get their process water from the same places that municipalities get their drinking water: fresh surface water & fresh groundwater sources. Though water from these sources may need additional treatment before they are potable, this is not strictly necessary if used as industrial process water. However, certain naturally occurring minerals can harm process equipment. ...
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Heterotrophic monitoring at a drinking water treatment plant by matrix-assisted laser desorption/ionization–time of flight (MALDI-TOF) mass spectrometry after different drinking water treatments
The aim of this work was to assess the suitability of matrix-assisted laser desorption/ionization–time of flight mass spectrometry (MALDI-TOF MS) for routine heterotrophic monitoring in a drinking water treatment plant. Water samples were collected from raw surface water and after different treatments during two campaigns over a 1-year period. Heterotrophic bacteria were studied and isolates ...
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Recent operational experiences of FILMTEC™ NF270 membrane in Europe
Nanofiltration (NF) is an attractive technology for potable and industrial water treatment because NF operates between ultrafiltration (UF) and reverse osmosis (RO) membranes. NF is designed to remove a high percentage of organic contaminants (humic acids, pesticides, color bodies) while passing a medium to high percentage of salt. Compared to UF membranes, the NF product water quality is ...
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Feasibility assessment of surface water disinfection by ultrafiltration
Ultrafiltration (UF) has been presented as an alternative to chemical disinfection to obtain safe drinking water, for its ability to remove microbiological contamination. Hollow-fiber UF membranes are designed as an effective barrier to microorganisms, for their high manufacturing integrity and for the ‘potting’ method adopted to seal fibers to the feeding/extraction manifold. ...
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