Projects leaded by:

Julian Carrera

Associate professor

I would like to transform the urban WWTPs from energy-consuming to energy-producing systems

For the achievement of sustainable (energy-neutral or even energy-positive) wastewater treatment plants the use of Anammox for sewage treatment has been proposed. The performance of one-stage nitrogen removal of pretreated municipal nitrogenous wastewater has been tested with SBR as a first approach. In many of the studies, the known weak point of those trials is that nitrite-oxidizing bacteria (NOB) developed in the long term operation, triggering the production of nitrate, and decreasing importantly the N-removal performance with Anammox.

Wastewater treatment by Sequenced Batch Reactor (SBR) is a very versatile technology. Reaction and settling processes are carried out in the same reactor, allowing a highly configurable and adaptable wastewater treatment system. Our research group has been working since year 2000 with SBR configurations for removal of organic matter, nitrogen and phosphorus. We have 15 years of expertise in SBR configurations for Enhanced Biological Phosphorus Removal (EBPR). Classic Ana/Aer configuration for P-removal and novel Ana/Anox/Aer or Ana/Anox cycles have been widely tested in different projects.

Reject water is a high-strength ammonium wastewater produced in the sludge dewatering process in urban WWTPs. This effluent is usually mixed with the influent of the WWTP to be treated in the conventional water line. However, different studies have demonstrated that the specific and separated treatment of reject water is more convenient than its recycle. Among the proposed treatments, biological processes are the most convenient from both economic and ecological points of view. Biological nitrogen removal of reject water can be performed by (i) the classical nitrification–denitrification, (ii) full nitritation–denitritation and (iii) partial nitritation (PN)–Anammox which is the most novel process and ensures nitrogen removal through an autotrophic process. As a pretreatment of the anammox reactor, the PN reactor has to achieve an effluent ratio of nitrite/ammonium around 1.3, which is the stoichiometric ratio required by Anammox.

Aerobic granular sludge was developed as an alternative technology to conventional activated sludge processes for the treatment of wastewater. The morphological structure of aerobic granular sludge (i.e. high particle diameter and density) provides two main advantages if compared to activated sludge processes: (i) the ability of settling faster, which ease the retention of biomass; and (ii) the existence of substrate profiles across the granule radius, which allows simultaneous aerobic, anoxic and anaerobic processes into the same granule. Both characteristics contribute to reduce the required reactor capacity producing more compact designs, or to treat higher wastewater loading rates, when compared to conventional activated sludge systems. Furthermore, since aerobic granules can be separated from wastewater in the same reactor vessel, external settling units become unnecessary.

In this field we study different strategies to treat industrial wastewater contaminated with toxic or recalcitrant compounds by using advanced biological treatments (granular biomass for example), chemical oxidation processes or combined sequential chemical and biological processes.

Several industrial processes such as petroleum refinement, coal tar processing, petrochemicals and resins production release wastewaters containing both, ammonium and phenolic compounds.

SAVING-E: Two-Stage Autotrophic N-remoVal for mainstream sewaGe trEatment. (LIFE14 ENV/ES/000633; 01/10/2015 - 30/04/2019). Julián Carrera Muyo (Coordinator). European Comission (1 165 306.00 Euros). 

DESDÉMONA: DESarrollo de una DEpuradora urbana autosuficiente energéticamente Mediante la eliminación autOtrófica de Nitrógeno en la línea principal de Aguas y la recuperación de fósforo (Development of an energetically self-sufficient urban wastewater treatment plant through autotrophic nitrogen removal in the mainstream and phosphorus recovery). (CTQ2014-60495-R). (01/01/2015-31/12/2017). Juan A. Baeza Labat y Julián Carrera Muyo.  Ministerio de Economía y Competividad. (200 860 €).

GENOCOV was represented at ISEB2016 by Carlos Ramos and María Eugenia Suárez-Ojeda

Page 1 of 2
Welcome 200GBP Bonus at Bet365 here.