UASB performance for bleached and unbleached kraft pulp synthetic wastewater treatment

Application of molecular techniques to evaluate the methanogenic archaea and anaerobic bacteria in the presence of oxygen with different COD:Sulfate ratios in a UASB reactor

“…Uncultered archaeon (DQ478742) associated with the order Methanomicrobiales was previously characterized in a study of microbial diversity of methanogenic granules from a full-scale UASB reactor treating brewery wastewater [13]. According to Grabowski et al [52], uncultered archaeon (AY570646) was phylogenetically similar to Methanothrix (Methanosaeta) concilii (X16932), with 99% similarity in a study of microbial diversity in the production of wastewater in a biodegraded oil reservoir at low temperatures (18-20 1C).…”

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

“…Generally, the efficiency of anaerobic lagoons is very low and UASB and contact processes are the most widely used systems (Allen and Liu 1998). The upflow anaerobic sludge blanket (UASB) reactors can reach 70 % COD removal from kraft pulp wastewater (Buzzini et al 2005).…”

Anaerobic treatment of activated sludge from Swedish pulp and paper mills – biogas production potential and limitations

“…Another option that can potentially exploit these resources is anaerobic digestion (AD). AD has been implemented and, in some cases, evaluated for the treatment of pulp and paper mill wastewater [2][3][4][5][6]. Depending upon the strategy chosen, AD may have several benefits compared to aerobic techniques: the incoming wastewater can be treated directly in an upflow anaerobic sludge blanket (UASB) reactor or a similar high rate system, followed by an activated sludge bed for final treatment of the remaining organic matter.…”