Arsenic contamination of ground and pond water and water purification system using pond water in Bangladesh

Yokota, Hiroshi; Tanabe, Kimiko; Sezaki, Mitsuhiro; Akiyoshi, Yasuhiro; Miyata, Tetsuo; Kawahara, K.; Tsushima, Sachie; Hironaka, Hiromi; Takafuji, H; Rahman, Mohammad Mahmudur; Shojaei, Ahmad; Sayed, M.H. Salim Ullah; Faruquee, MH

doi:10.1016/s0013-7952(00)00112-5

Cited by 49 publications

(26 citation statements)

References 2 publications

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“…However, the total iron content was high and ranged from 1.004 to 1.761 mg L −1 . Water samples were also analyzed for total arsenic content considering the observation of Yokota et al (2001) for the surface water of Samta, Bangladesh, and it was below the detectable limit.…”

Section: Trace Metalsmentioning

confidence: 99%

Stagnant surface water bodies (SSWBs) as an alternative water resource for the Chittagong metropolitan area of Bangladesh: physicochemical characterization in terms of water quality indices

Rahman

Islam

Hossain

et al. 2010

Environ Monit Assess

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1The concern over ensuing fresh water scarcity has forced the developing countries to delve 2 for alternative water resources. In this study we examined the potential of stagnant surface 3 water bodies (SSWBs) as alternative fresh water resources in the densely populated 4Chittagong metropolitan area (CMPA) of Bangladesh -where there is an acute shortage of 5 urban fresh water supply. Water samples, collected at one month intervals for a period of one 6 year from 12 stations distributed over the whole metropolis. Samples were analyzed for pH, 7water temperature (WTemp), turbidity, electrical conductivity (EC), total dissolved solids, 8 total solids, total hardness, dissolved oxygen (DO), chloride, orthophosphates, ammonia, total 9 coliforms (TC) and trace metal (Cd, Cr, Cu, Pb, As and Fe) concentrations. Based on these 10 parameters different types of water quality indices (WQIs) were deduced. WQIs showed most 11 of CMPA-SSWBs as good or medium quality water bodies while none were categorized as 12 bad. Moreover, it was observed that the minimal water quality index (WQI m ), computed 13 using five parameters: WTemp, pH, DO, EC and turbidity gave reliable estimate of water 14 quality. The WQI m gave similar results in 72% of the cases compared with other WQIs which 15 were based on larger set of parameters. Based on our finding, we suggest the wider use 16 WQI m in developing countries for assessing health of SSWBs as it will minimize the 17 analytical cost to overcome the budget constraints involved in this kind of evaluations. It was 18 observed that except turbidity and TC content, all other quality parameters fluctuated within 19 the limit of World Health Organization suggested standards for drinking water. From our 20 findings we concluded that if the turbidity and TC content of water from SSWBs in CMPA 21 are taken care of, they will become good candidates as alternative water resources all round 22 the year. 23Keywords: surface water; water chemistry; water quality index; Chittagong; Urban water 24 supply 25 -3 -

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Section: Trace Metalsmentioning

confidence: 99%

Stagnant surface water bodies (SSWBs) as an alternative water resource for the Chittagong metropolitan area of Bangladesh: physicochemical characterization in terms of water quality indices

Rahman

Islam

Hossain

et al. 2010

Environ Monit Assess

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“…In contrast to precipitation/coprecipitation, which may produce large volumes of sludge that are difficult to dewater (Deliyanni et al, 2003a, 155), sorption and ion-exchange columns usually produce relatively little waste and can often be regenerated. Sorption and ion-exchange technologies also require less technical training and can be applied to small-scale operations, including small villages and even individual household wells (US Environmental Protection Agency (US EPA), 2002a, 1.1; Yokota et al, 2001;Singh, 2007). On the other hand, organic materials and silica (SiO 2 ) may foul the systems (US EPA, 2002b, 27).…”

Section: Applications and Limitations Of Sorption And Ion-exchange Tementioning

confidence: 99%

“…The contaminated aquifer can only be isolated as much as possible from its surroundings and alternative sources of drinking water must be found. Although some surface waters may be readily treated to replace arsenic-contaminated groundwaters (Yokota et al, 2001), many of the surface waters in rural areas are too contaminated with chemicals and dangerous microorganisms for inexpensive treatment technologies (Alaerts and Khouri, 2004;Adeel, 2002, 70). Other suitable alternatives might include bottled water, pipelines, or uncontaminated aquifers.…”

Section: Treatment Technologies For Arsenic In Water 721 Introductionmentioning

confidence: 99%

Waste Treatment and Remediation Technologies for Arsenic

Henke

2009

Arsenic

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“…26 In addition, there are also concerns for bacterial contamination on numerous paper products, for example, filter paper in water and air purifying systems, and wrapping paper used in the food industry. 27,28 Filter papers are commonly covered by a thick layer of bacterial biofilm and need frequent replacement. Microbial contamination is one of the major reasons causing food spoilage during food storage, especially when the foods are packaged and stored for a long period of time.…”

Section: Introductionmentioning

confidence: 99%

Inhibition of various gram-positive and gram-negative bacteria growth on selenium nanoparticle coated paper towels

Wang¹,

Larese-Casanova²,

Webster³

2015

IJN

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There are wide spread bacterial contamination issues on various paper products, such as paper towels hanging in sink splash zones or those used to clean surfaces, filter papers used in water and air purifying systems, and wrappings used in the food industry; such contamination may lead to the potential spread of bacteria and consequent severe health concerns. In this study, selenium nanoparticles were coated on normal paper towel surfaces through a quick precipitation method, introducing antibacterial properties to the paper towels in a healthy way. Their effectiveness at preventing biofilm formation was tested in bacterial assays involving Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli , and Staphylococcus epidermidis . The results showed significant and continuous bacteria inhibition with about a 90% reduction from 24 to 72 hours for gram-positive bacteria including S. aureus and S. epidermidis . The selenium coated paper towels also showed significant inhibition of gram-negative bacteria like P. aeruginosa and E. coli growth at about 57% and 84%, respectively, after 72 hours of treatment. Therefore, this study established a promising selenium-based antibacterial strategy to prevent bacterial growth on paper products, which may lead to the avoidance of bacteria spreading and consequent severe health concerns.

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Arsenic contamination of ground and pond water and water purification system using pond water in Bangladesh

Cited by 49 publications

References 2 publications

Stagnant surface water bodies (SSWBs) as an alternative water resource for the Chittagong metropolitan area of Bangladesh: physicochemical characterization in terms of water quality indices

Stagnant surface water bodies (SSWBs) as an alternative water resource for the Chittagong metropolitan area of Bangladesh: physicochemical characterization in terms of water quality indices

Waste Treatment and Remediation Technologies for Arsenic

Inhibition of various gram-positive and gram-negative bacteria growth on selenium nanoparticle coated paper towels

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