Design methodology for submerged anaerobic membrane bioreactors (AnMBR): A case study

Filtration process cost in submerged anaerobic membrane bioreactors (AnMBRs) for urban wastewater treatment

“…The total annualised equivalent cost (TAEC) was calculated by adding the annualised CAPEX to the annual OPEX. Unit costs and further details about the LCC methodology can be found in Table 1 as well as in Ferrer et al [3]. As Figure 2 shows, increasing MLSS from 5 to 25 g·L -1 considerably increases TAEC (up to 91%) for a given SGDm level, mainly due to increasing CAPEX.…”

“…This methodology was extracted from the design methodology proposed in Ferrer et al [3]. The terms considered for CAPEX calculation were: acquisition of ultrafiltration hollow-fibre membranes, equipment acquisition (blowers, pumps and pipes) and reinforced concrete structures.…”

“…Recent studies (see, for instance, [1,2,3]) have reported the need to address future research efforts on submerged anaerobic membrane bioreactors (AnMBRs) for urban wastewater (UWW) treatment towards sustainable full-scale implementation and operation. Specifically, it is required to establish adequate filtration strategies from an economical point of view, accounting not only for power requirements but also for investment, maintenance, and replacement costs.…”

Navigating environmental, economic, and technological trade-offs in the design and operation of submerged anaerobic membrane bioreactors (AnMBRs)

“…The full 146 characterization of the sewage entering the AnMBR plant can be found in Ferrer et al (2015). 147…”

“…As shown in Figure 1, the construction, operation, and demolition 167 phases of the WWTP as well as transportation of the materials, reagents, and sludge were all 168 included, but structural concrete and pipes were excluded from the demolition phase because 169 their useful life was greater than that of the project itself. A maximum useful membrane life of 170 20 years was assumed, with operational fluxes higher than JC resulting in decreased membrane 171 life (for detailed discussion, see Ferrer et al, 2015). Briefly, membrane life was set from 8 years 172…”