Laboratory scale baffled reactors.Two laboratory scale bioreactors (total volume.10 L) were constructed so that specified terminal.Compartments could be aerated (0.4 l air per min).As necessary (Shaw et al, 2002). Each compartment.Was divided into a downflow section (10 mm.Wide) by a hanging baffle and an, upflow section.(35 mm) wide by a standing baffle. The tips of the.Hanging baffles were angled at 458 to direct the.Flow to the centre of the upflow section. Additional.Compartments (1 L) were added when.Necessary. The bioreactors were run at 379 / 1 8C.As continuous flow systems. The bioreactors were.Fed a synthetic feed which represented a typical.Textile dyehouse effluent (mg L1); 2670 starch 400,,Polyvinyl alcohol 270 carboxymethyl cellulose,,500 hydrolysed Reactive Black 5 26 700 NaCl,,1000 Na2CO3 and, 110 NaOH pH 9.0. They were.Seeded using anaerobic granules from a full scale.Upflow anaerobic sludge bioreactor treating potato.Wastewater which had, not previously been.Exposed to azo dyes. The two bioreactors were run.In parallel; one being fed the synthetic feed but.Without the hydrolysed textile dye as a control.The bioreactors were run with a hydraulic retention.Time of 6 h per cell in three phases (I) day 1.
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