Removal of iron and manganese using biological roughing up flow filtration technology

Pacini, Virginia; Ingallinella, Ana María; Sanguinetti, Graciela

doi:10.1016/j.watres.2005.08.027

Cited by 153 publications

(93 citation statements)

References 10 publications

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“…These bacteria are prevalent in the environment such as in groundwater, swamps, ponds and wells (Pacini et al 2005). It is possible that iron-oxidizing bacteria were more abundant in groundwater than the surface water in this study and thus increased iron removal in BSFs fed well water.…”

Section: Iron and Manganesementioning

confidence: 83%

A critical evaluation of two point-of-use water treatment technologies: can they provide water that meets WHO drinking water guidelines?

Murphy

McBean

Farahbakhsh

2010

Journal of Water and Health

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Point-of-use (POU) technologies have been proposed as solutions for meeting the Millennium Development Goal (MDG) for safe water. They reduce the risk of contamination between the water source and the home, by providing treatment at the household level. This study examined two POU technologies commonly used around the world: BioSand and ceramic filters. While the health benefits in terms of diarrhoeal disease reduction have been fairly well documented for both technologies, little research has focused on the ability of these technologies to treat other contaminants that pose health concerns, including the potential for formation of contaminants as a result of POU treatment. These technologies have not been rigorously tested to see if they meet World Health Organization (WHO) drinking water guidelines. A study was developed to evaluate POU BioSand and ceramic filters in terms of microbiological and chemical quality of the treated water. The following parameters were monitored on filters in rural Cambodia over a sixmonth period: iron, manganese, fluoride, nitrate, nitrite and Escherichia coli. The results revealed that these technologies are not capable of consistently meeting all of the WHO drinking water guidelines for these parameters.

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Section: Iron and Manganesementioning

confidence: 83%

A critical evaluation of two point-of-use water treatment technologies: can they provide water that meets WHO drinking water guidelines?

Murphy

McBean

Farahbakhsh

2010

Journal of Water and Health

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“…Apart from silica sand being employed in the removal of turbidity and bacteria, reports from previous researches have also shown that there has been significant reduction in total phosphorous, Chemical Oxygen Demand (COD) and total nitrogen from contaminated waters (Lwesya and Li, 2010). The removal of iron and magnesium have also been reported by Gottinger et al (2011) and Pacini et al (2005).…”

Section: Introductionmentioning

confidence: 60%

Performance of Sand Channel as Pre-Treatment for Anaerobic Landfill Bioreactor Leachate and Biogas Generation

Olisa¹,

Sapari²,

Malakahmad³

et al. 2015

J. of Environmental Science and Technology

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The performance of a laboratory scale landfill bioreactor with two compartments (simulated landfill reactor and a sand channel) was investigated in this study. Solid waste components similar to the typical Malaysian waste were collected from the cafeterias in University Teknologi PETRONAS (UTP), Perak, Malaysia and used to generate leachate in the simulated landfill bioreactor. Leachate produced were slowly and systematically introduced into the bottom sand channel where methanogenesis rapidly occurred thereby resulting in a better stabilized system than the simulated landfill reactor. After 20 months of anaerobic incubation of both reactors, it was observed that the Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD 5 ) concentrations were lower in the sand channel while the pH values were higher than the simulated landfill reactor. Reduction in COD and BOD 5 in the sand channel were 88 and 90%, respectively. The pH of the simulated landfill reactor remained acidic at 6.2 while the pH of the sand channel was 7.9. Ammonia-nitrogen (NH 3 -N) concentration was also observed to be lower in the sand channel at 1435 mg LG 1 as against 1509 mg LG 1 in the simulated landfill bioreactor. The constituent methane gas percentage in the simulated landfill reactor and sand channel were 25 and 58%, respectively. The obtained result clearly indicates that the attachment of a sand channel to landfills can be applied for the degradation and reduction of organic pollutants in leachate while methane gas recovered is enhanced.

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“…Similar results have been obtained using slow sand filters installed downstream of coarse filters with aeration. Such an installation gave a final concentration of iron in the range of 0.03-0.04 mg·dm -3 [PACINI et al 2005]. The efficacy of silica carbonate rock in removing iron from water is comparable to that of active carbon, which can be used to obtain an iron removal efficiency of up to 95% [EL-SHERIF et al 2013].…”

Section: Ironmentioning

confidence: 99%

The use of carbonate-silica rock (opoka) to remove iron, manganese and indicator bacteria from groundwater

Marzec

Pieńko

Gizińska-Górna

et al. 2017

Journal of Water and Land Development

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A. 2017. The use of carbonate-silica rock (opoka) to remove iron, manganese and indicator bacteria from groundwater. Journal of Water and Land Development. No. 34 p. 197-204. DOI: 10.1515/jwld-2017-0054. AbstractThe study investigated the efficiency of removal of iron, manganese and indicator bacteria from potable groundwater by using carbonate-silica rock (opoka). The tests were performed in a laboratory in three filter columns supplied with water containing increased concentrations of iron and manganese. Two of the columns were filled with carbonate-silica rock with particle sizes of 2-5 mm; retention time for water in the columns was set at 1 h and 2 h. A third column was filled with 1-2 mm rock particles, with hydraulic retention time set at 1 h. High removal efficiencies were determined for iron, manganese and coliform bacteria and low removal efficiencies for psychro-and mesophilic bacteria. An increase in the alkalinity of the investigated water was also observed.

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Removal of iron and manganese using biological roughing up flow filtration technology

Cited by 153 publications

References 10 publications

A critical evaluation of two point-of-use water treatment technologies: can they provide water that meets WHO drinking water guidelines?

A critical evaluation of two point-of-use water treatment technologies: can they provide water that meets WHO drinking water guidelines?

Performance of Sand Channel as Pre-Treatment for Anaerobic Landfill Bioreactor Leachate and Biogas Generation

The use of carbonate-silica rock (opoka) to remove iron, manganese and indicator bacteria from groundwater

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