Estimation of Filter Bed Efficiency at Biotechnologically Intensified Process of Water Deferrization and Demanganation on Rapid Filters

Oleksandr V. Kravchenko, Olena S. Panchenko

Abstract


Background. The results of investigations of various types of filter beds (zeolite, quartz sand, keramzit, activated carbon), which are used as beds for rapid filters at biotechnological intensification for ground water defferization and demanganation, are presented.

Objective. The aim of the paper is to evaluate the effectiveness of different types of filtering materials at biotechnological intensification of processes of water defferization and demanganation on rapid filters, both in terms of microorganism fixation and biomass accumulation in the filter loading, and from the point of view of the possible depth of iron and manganese compound removal.

Methods. The research was carried out on the model installation of filters with different types of loading (single and multilayer), artificially populated with microorganisms of the cultures of Leptothrix and Sphaerotillus. The investigated water was characterized by high level of iron and manganese. After the set biomass rise time, the number of microorganisms per unit volume of filter loading was determined, and the defferization and demanganation effectiveness was evaluated.

Results. The obtained results showed a high ability of activated carbon to accumulate the biomass of bacteria during the filtration (4500 CFU/cm3), but the defferization and demanganation percentage was low (65 % and 60 %, respecti­vely). When water was filtered through other research materials, less biomass accumulation was observed, as well as the overall efficiency of the treatment process. For sand-zeolite-coal loading, the removal efficiency was up to 90 % for iron, and for manganese – up to 71 %.

Conclusions. The obtained results showed the prospects of using three-layer sand-zeolite-coal loading and the need to determine the optimal technological parameters.


Keywords


Zeolite; Biotechnological intensification; Activated carbon; Deferrization; Demanganation

References


W.W.J.M. de Vet et al., “Biological iron oxidation by Gallionella spp. in drinking water production under fully aerated conditions”, Water Res., vol. 45, no. 17, pp. 5389–5398, 2011. doi: 10.1016/j.watres.2011.07.028

G.A. Dubinina et al., “Modelling and optimization of processes for removal of dissolved heavy-metal compounds from drinking water by microbiological methods”, Water Resour., vol. 39, no. 4, pp. 398–404, 2012. doi: 10.1134/s0097807812030037

S. Qin et al., “Fe (II) and Mn (II) removal from drilled well water: a case study from a biological treatment unit in Harbin”, Desalination, vol. 245, no. 1-3, pp. 183–193, 2009. doi: 10.1016/j.desal.2008.04.048

A. Farkas et al., “Microbial activity in drinking water-associated biofilms”, Cent. Eur. J. Biol., vol. 8, no. 2, pp. 201–214, 2013. doi: 10.2478/s11535-013-0126-0

Y. Tarasevich et al., “Simplified model of deferrization and demanganization of water on clinoptilolite filter loading”, Himiya i Tekhnologiya Vody, vol. 32, no. 5, pp. 98–109, 2013 (in Russian).

O. Drozhzhin, “The role of iron bacteria in the iron and manganese transformation in groundwater and their use for puri­fi­cation of drinking water”, Ph.D thesis, Voronezh State University, Voronezh, Russia, 2001 (in Russian).

G. Shayiachmetova et al., “The role of iron bacteria in water demanganation of Patrakoskyi intake of Krasnokamskiy region RB”, Bashkirskiy Khimichyeskyy Zhurnal, vol. 14, no. 2, pp. 126–130, 2007 (in Russian).

O.V. Kravchenko, “Development of methods for identification of microbial cultures that are able to oxidize iron and manganese compounds in natural waters”, Problemy Vodopostachannya, Vodovidvedennya ta Hidravliky, no. 24, pp. 140–145, 2014 (in Ukrainian).

O.V. Kravchenko, “The role of microorganisms in the removal of high concentrations of iron on filters with zeolite loading”, Visnyk NUVHP. Tekhnichni Nauky, vol. 1, no. 69, pp. 58–65, 2015 (in Ukrainian).


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DOI: https://doi.org/10.20535/1810-0546.2017.6.111985

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