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Sustainable Reuse of Groundwater Treatment Iron Sludge for Organic Matter Removal from River Neris Water

Author

Listed:
  • Ramunė Albrektienė

    (Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Sauletekio ave. 11, 10223 Vilnius, Lithuania)

  • Karolis Karaliūnas

    (“Infes technologijos”, UAB, Verkių str. 34b, 08223 Vilnius, Lithuania)

  • Kristina Bazienė

    (Department of Mechanics and Materials Engineering, Vilnius Gediminas Technical University, Sauletekio ave. 11, 10223 Vilnius, Lithuania)

Abstract

The most important advances in sustainability in the water industry are focused on the reuse of water treatment sludge. The Antaviliai Water Supply Plant, which is located in Lithuania, treats groundwater by removing iron and manganese from it. This technology does not produce water waste, as the iron sludge is used for recycling. In this study, iron sludge received from groundwater treatment is used to remove natural organic matter from river Neris water, which can be used as drinking water. Twelve doses (from 1 to 6 g/L and from 0.1 g/L to 0.9 g/L) of iron sludge powder, with acid and without it, were used. The most effective removal of organic compounds (55.51%) and reduction in water colour (53.12%) were observed when 0.3 g of iron sludge powder and 8 ml of 0.95% H 2 SO 4 solution were added to the tested water. It was found that the use of a conventional coagulant (Al 2 (SO 4 ) 3 *17H 2 O), with and without iron sludge powder, decreased the concentration of organic compounds and water colour from 2.8 to 28.2% compared with the use of a pure coagulant (Al 2 (SO 4 ) 3 *17H 2 O) alone..

Suggested Citation

  • Ramunė Albrektienė & Karolis Karaliūnas & Kristina Bazienė, 2019. "Sustainable Reuse of Groundwater Treatment Iron Sludge for Organic Matter Removal from River Neris Water," Sustainability, MDPI, vol. 11(3), pages 1-15, January.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:3:p:639-:d:200866
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    References listed on IDEAS

    as
    1. Louis Akainya Ackah & Rajesh Guru & Meisam Peiravi & Manoj Mohanty & Xingmao Ma & Sanjeev Kumar & Jia Liu, 2018. "Characterization of Southern Illinois Water Treatment Residues for Sustainable Applications," Sustainability, MDPI, vol. 10(5), pages 1-14, April.
    2. Silvana Canzano & Sante Capasso & Michele Di Natale & Alessandro Erto & Pasquale Iovino & Dino Musmarra, 2014. "Remediation of Groundwater Polluted by Aromatic Compounds by Means of Adsorption," Sustainability, MDPI, vol. 6(8), pages 1-16, July.
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