Comparison of physicochemical iron removal mechanisms in filters

  title={Comparison of physicochemical iron removal mechanisms in filters},
  author={Saroj K. Sharma and Joost W.N.M. Kappelhof and Martijn Groenendijk and Jan C. Schippers},
  journal={Journal of Water Supply Research and Technology-aqua},
Water supply companies are continually seeking means to improve the process efficiency of iron removal from groundwater in order to minimize the deposition of iron in distribution networks, backwash water use, and volume of the sludge produced. It is expected that the process efficiency can be optimized with a better understanding of the different mechanisms involved in the iron removal process and their optimal utilization. In order to investigate the options to improve the performance of an… 
Decision support system for optimisation of iron removal from groundwater
Floc filtration and adsorptive filtration are the two main physicochemical mechanisms of iron removal in filters. Under the commonly applied treatment conditions in iron removal plants, the floc
Ammonia, iron and manganese removal from potable water using trickling filters
Pilot scale trickling filters were constructed and tested in order to study biological removal of ammonia, iron and manganese from potable water. The effect of the size of the support material on
Biological iron removal from groundwater: a review
Iron is generally removed from groundwater by the process of aeration or chemical oxidation followed by rapid sand filtration. Different mechanisms (physicochemical and biological) may contribute to
Iron removal at groundwater pumping station Harderbroek
Iron is the primary source for discolouration problems in the drinking water distribution system. The removal of iron from groundwater is a common treatment step in the production of drinking water.
Bench-scale evaluation of drinking water treatment parameters on iron particles and water quality.
A comprehensive study revealed that phosphate and chlorine produced iron suspension with reduced color and turbidity, made ζ-potential more negative, reduced the average particle size, and increased iron suspension stability, and suggested that iron colloid suspension color and turbulence in chlorinated drinking water systems could be lower than non-chlorinated systems.
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Abstract A pilot-scale trickling filter was constructed and tested for iron removal from potable water. Iron removal was found to be caused by both biological and physico-chemical iron oxidation. The
Development of a novel groundwater iron removal system using adsorptive Fe(II) process
Abstract Potential of Ferric Hydroxide[Fe(OH)3] flocs to be used as a media for the adsorptive removal of Fe(II) in water was explored in detail. It was found that this removal mechanism created new
Removal of ammonium, iron and manganese from potable water in biofiltration units: a review
Ammonium, and trace metals such as iron and manganese are common inorganic pollutants present in waters. Several surface and groundwaters contain natural or increased concentrations of these


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The purification process and techniques of the slow sand filtration method for treatment of groundwater was studied on the basis of pilot plant and full scale tests and studies of waterworks, to
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Iron (Fe) and manganese (Mn), in reduced and ionized forms, are present in groundwater, in the anoxic hypolimnion of lakes and impoundments in a state of eutrophication, and in rivers polluted by
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Nearly one fifth of all water used in the world is obtained from groundwater. The protection of water has become a high priority goal. During the last decades pollution of water has become more and
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Iron is a highly objectionable constituent in water supplies for either domestic or industrial use. According to the World Health Organization (Who) International Standards for Drinking Water,1 the
Adsorptive filtration using coated sand: a new approach for treatment of metal-bearing wastes
Sand coated with iron hydroxide was compared with uncoated sand as an adsorbent filter media for treating metal bearing wastes. The oxide-coated sand outperformed uncoated sand in removing paniculate
Iron and Manganese in Water Supplies
allowable limits of iron and manganese combined in finished waters, is set by the US Public Health Service at 0.3 ppm. This is a reasonably conservative figure, however, and except for certain
Water treatment processes : simple options
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Abstract The oxygenation of Fe2+ ions in neutral solutions is accelerated by the reaction product, Fe(III) hydroxide, and by the addition of Fe(III) hydroxide. The reaction proceeds along two paths;