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Removal of Cr, Mn and Co from textile wastewater by horizontal rotating tubular bioreactor (CROSBI ID 189109)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Zeiner, Michaela ; Rezić, Tonči ; Šantek, Božidar ; Režić, Iva ; Hann, Stephan ; Stingeder, Gerhard Removal of Cr, Mn and Co from textile wastewater by horizontal rotating tubular bioreactor // Environmental science & technology, 46 (2012), 19; 10690-10696. doi: 10.1021/es301596g

Podaci o odgovornosti

Zeiner, Michaela ; Rezić, Tonči ; Šantek, Božidar ; Režić, Iva ; Hann, Stephan ; Stingeder, Gerhard

engleski

Removal of Cr, Mn and Co from textile wastewater by horizontal rotating tubular bioreactor

Environmental pollution by industrial wastewaters polluted with toxic heavy metals is of great concern. Various guidelines regulate the quality of water released from industrial plants and of surface waters. In wastewater treatment, bioreactors with microbial biofilms are widely used. A horizontal rotating tubular bioreactor (HRTB) is a combination of a thin layer and a biodisc reactor with an interior divided by O-ring shaped partition walls as carriers for microbial biomass. Using a biofilm of heavy metal resistant bacteria in combination with this special design provides various advantages for wastewater treatment proven in a pilot study. In the presented study, the applicability of HRTB for removing metals commonly present in textile wastewaters (chromium, manganese, cobalt) was investigated. Artificial wastewaters with a load of 125 mg/L of each metal underwent the bioreactor treatment. Different process parameters (inflow rate, rotation speed) were applied for optimizing the removal efficiency. Samples were drawn along the bioreactor length for monitoring the metal contents on site by UV−vis spectrometry. The metal uptake of the biomass was determined by ICP-MS after acidic microwave assisted digestion. The maximum removal rates obtained for chromium, manganese, and cobalt were: 100%, 94%, and 69%, respectively.

textile waste water; heavy metal removal; chromium; cobalt; manganese; UV-VIS-spectrometry; ICP-MS

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Podaci o izdanju

46 (19)

2012.

10690-10696

objavljeno

0013-936X

10.1021/es301596g

Povezanost rada

Kemija, Kemijsko inženjerstvo, Biotehnologija

Poveznice
Indeksiranost