Pilot-scale bioelectrochemical system for simultaneous nitrogen and carbon removal in urban wastewater treatment plants
| Autor: | María Isabel San-Martín, Adrián Escapa, Begoña Carracedo, Antonio Morán, Raúl Mateos |
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| Rok vydání: | 2017 |
| Předmět: |
Hydraulic retention time
Nitrogen 0208 environmental biotechnology Biomass chemistry.chemical_element Bioengineering Pilot Projects 02 engineering and technology 010501 environmental sciences Wastewater 01 natural sciences Applied Microbiology and Biotechnology Waste Disposal Fluid Water Purification Bioreactors Electricity Microbial electrolysis cell Electrodes 0105 earth and related environmental sciences Electrochemical Techniques Pulp and paper industry Dewatering Carbon 020801 environmental engineering Waste Disposal Facilities chemistry Environmental science Sewage treatment Biotechnology |
| Zdroj: | Journal of bioscience and bioengineering. 126(6) |
| ISSN: | 1347-4421 |
| Popis: | This study aims to characterize the performance of a 150 L bioelectrochemical system-based plant, during the simultaneous carbon and nitrogen removal from several waste streams of wastewater treatment plants. The bioelectrochemical system (BES) contained five electrode pairs (operated hydraulically and electrically in parallel) and was fed with either wastewater, centrate (nutrient-rich liquid stream produced during the dewatering of digested biomass), or a mixture of both over 63 days, with a hydraulic retention time of one day. Total organic carbon and total nitrogen removal rates averaged 80% and 70%, respectively, with a specific energy consumption of 0.18 kWh·m−3 (BES + ancillary equipment). This work also underlines the challenges of using BES for nitrogen removal, highlighting the limitations of the current design, and suggesting some strategies for improvement. |
| Databáze: | OpenAIRE |
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