Sludge granulation during anaerobic treatment of pre-hydrolysed domestic wastewater

Abstract

3 July 2002 309Available on website remained low. Furthermore, the operation at this new HRT had no significant effect on the SS lost with the effluent. 5 h, and the digester was maintained in this situation until day 170 (Period IV). 3 kg COD/m 3·d. The digester showed an increase in effluent COD and VFA concentrations, with a decrease in the COD removal efficiency, but less than what occurred in Period IIa. The effluent SS concentration increased only momentarily (day 125 of operation), and the digester maintained the biomass retention capability.

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