6533b7d9fe1ef96bd126c2af

RESEARCH PRODUCT

Economic analysis of the scale-up and implantation of a hollow fibre membrane contactor plant for nitrogen recovery in a full-scale wastewater treatment plant

José FerrerAurora SecoG. Noriega-heviaJ. Serralta

subject

Nitrogen recoveryHollow fibre membrane contactorchemistry.chemical_elementFiltration and SeparationMembrane contactor modelling02 engineering and technologyAnalytical ChemistryAmmoniachemistry.chemical_compound020401 chemical engineering0204 chemical engineeringGlobal warming potential in wastewater treatmentTECNOLOGIA DEL MEDIO AMBIENTEContactorEconomic analysis021001 nanoscience & nanotechnologyPulp and paper industryNitrogenVolumetric flow rateMembranechemistrySCALE-UPEnvironmental scienceSewage treatmentAeration0210 nano-technology

description

[EN] Nitrogen recovery technologies such as the hollow fibre membrane contactor are now being developed. However, an economic analysis is needed prior to their full-scale application in wastewater treatment plants. The aim of this study was to analyse the economic and environmental aspects of scaling-up this method. To achieve it, a full-scale 40,000 m3·day¿1-wastewater treatment plant influent flow rate was simulated jointly with a membrane contactor plant to evaluate the minimum costs of optimum operating conditions of membrane contactors (pH, feed flow rate and membrane surface). The optimum conditions for treating 600 m3·day¿1 of reject water was found to be 10 pH, 0.08 m3·s¿1 feed flow rate and 10,580 m2 of membrane surface, obtaining a 4% nitrogen ammonia sulphate solution. The results indicated capital (membrane modules and pumps) and operating costs (reagents and energy) of 0.0095 €·m¿3 and a profit of 0.0090 €·m¿3, including energy savings in terms of aeration and sales of the recovered ammonia sulphate, with the added benefit of reducing CO2-eq by 10.3 tons per day.

yearjournalcountryeditionlanguage
2021-11-01
10.1016/j.seppur.2021.119128https://doi.org/10.1016/j.seppur.2021.119128