engleski

Horizontal Rotating Tubular Bioreactor (HRTB) - a promising tool for heavy metal removal from (textile) wastewaters

In wastewater treatment various bioreactors with microbial biofilms are often used, but the special design of a horizontal rotating tubular bioreactor (HRTB) has shown good removal rates in a pilot study. Thus its applicability for the removal of metals commonly present in textile wastewaters, such as chromium, manganese and cobalt, was investigated. In order to optimize the removal efficiency different process parameters (inflow rate, rotation speed) were applied and water samples were drawn along the reactor length for monitoring the metal contents. The concentrations of the elements were quantified on site by UV-VIS spectrometry. Furthermore the amount of metals uptaken by the biomass was determined by ICP-MS after microwave assisted digestion of the organic matter. The maximum removal rates obtained are 100%, 94% and 69% for chromium, manganese and cobalt, respectively. Due to these high efficiencies HRTB seems to be an appropriate tool for the treatment of heavy metal loaded textile wasterwaters.

Horizontal Rotating Tubular Bioreactor

nije evidentirano