Naslov
Acetate Depletion in Horizontal Rotating Tubular Bioreactor

Autori
Slavica, Anita ; Rezić, Tonči ; Šantek, Božidar ; Novak, Srđan ; Marić, Vladimir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 4th Croatian Congress of Food Technologists, Biotechnologists and nutritionists-Central European Meeting / Tripalo, Branko - Zagreb : Prehrambeno-biotehnološki fakultet Sveučilišta u Zagrebu, 2002, 338-343

Skup
4th Croatian Congress of Food Technologists, Biotechnologists and nutritionists-Central European Meeting

Mjesto i datum
Opatija, Hrvatska, 03.09.2001. - 05.09.2001

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
horizontal rotating tubular bioreactor; acetate depletion

Sažetak
Horizontal rotating tubular bioreactor (HRTB) is a combination of a "thin-layer bioreactor" and a "biodisc" reactor. The interior of a HRTB is characterised by O-ring shaped discs, which together with an internal bioreactor surface, are supposed to serve as carriers for microbial biomass. The performance of a HRTB was investigated in unsterile conditions. Acetate solution supplemented with a nitrogen source, phosphate and some trace elements were used as a growth medium supporting the growth of a mixed culture of microorganisms. Thus, acetate depletion by the action of a mixed culture in aerobic conditions was chosen as a model process. In a wide range of process parameters (acetate inlet concentration in the range 1.4 and 2.9 g L^ -1, medium inlet flow rate in the range 1.0 - 6.5 L h^ -1 and constant bioreactor rotation speed 10 min^ -1) were investigated. After the steady-state was established, the samples were whit-drawn from five positions along the bioreactor axes. The experiments showed a rapid and efficient acetate depletion followed by a biomass growth, that significantly depended on the acetate inlet concentration and medium inlet flow rate.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA