6533b854fe1ef96bd12af387

RESEARCH PRODUCT

The operating cost of an anaerobic membrane bioreactor (AnMBR) treating sulphate-rich urban wastewater

R. PretelMaría Victoria RuanoAurora SecoJosé FerrerÁNgel Robles

subject

INGENIERIA HIDRAULICAEnergy demandIndustrial-scale hollow-fibre membranesOperating costTreated waterAnaerobic membrane bioreactor (AnMBR)Environmental engineeringFiltration and SeparationAnaerobic membrane bioreactorEnergy consumptionMethaneAnalytical ChemistryEnergy consumptionchemistry.chemical_compoundWastewaterVolume (thermodynamics)chemistryEnvironmental scienceSulphate-rich urban wastewaterOperating costTECNOLOGIA DEL MEDIO AMBIENTE

description

The objective of this study was to evaluate the operating cost of an anaerobic membrane bioreactor (AnMBR) treating sulphate-rich urban wastewater (UWW) at ambient temperature (ranging from 17 to 33 degrees C). To this aim, energy consumption, methane production, and sludge handling and recycling to land were evaluated. The results revealed that optimising specific gas demand with respect to permeate volume (SGDp) and sludge retention time (for given ambient temperature conditions) is essential to maximise energy savings (minimum energy demand: 0.07 kW h m(-3)). Moreover, low/moderate sludge productions were obtained (minimum value: 0.16 kg TSS kg(-1) CODRemoved), which further enhanced the overall operating cost of the plant (minimum value: is an element of 0.011 per m(3) of treated water). The sulphate content in the influent UWW significantly affected the final production of methane and thereby the overall operating cost. Indeed, the evaluated AnMBR system presented energy surplus potential when treating low-sulphate UWW

yearjournalcountryeditionlanguage
2014-04-01
10.1016/j.seppur.2014.02.013http://hdl.handle.net/10251/55699