Browsing BIOGROUP-Artigos by Issue Date
Now showing items 1-20 of 108
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Effect of Coagulant-Flocculant Reagents on Aerobic Granular Biomass
(John Wiley & Sons, 2012)BACKGROUND: Technologies based on aerobic granular biomass are presented as a new alternative for its application to the wastewater treatment due to its advantages in comparison with the conventional activated sludge ones. ... -
Stability of aerobic granular biomass treating the effluent from a seafood industry
(University of Tehran, 2013)The aerobic granular systems represent a good alternative to substitute the conventional activated sludge process in the treatment of industrial effluents due to the lower surface requirements. In this work the effluent ... -
Enhanced ammonia removal at room temperature by pH controlled partial nitrification and subsequent anaerobic ammonium oxidation
(Taylor & Francis, 2014)The Anammox based processes are suitable for the treatment of wastewaters characterized by a low carbon to nitrogen (C/N) ratio. The application of the Anammox process requires the availability of an effluent with a ... -
A novel control strategy for single-stage autotrophic nitrogen removal in SBR
(Elsevier, 2014-08-27)A novel feedforward–feedback control strategy was developed for complete autotrophic nitrogen removal in a sequencing batch reactor. The aim of the control system was to carry out the regulation of the process while keeping ... -
Filamentous bacteria existence in aerobic granular reactors
(Springer Verlag, 2015)Filamentous bacteria are associated to biomass settling problems in wastewater treatment plants. In systems based on aerobic granular biomass they have been proposed to contribute to the initial biomass aggregation process. ... -
Assessment of prebiotic potential of Akpan-yoghurt-like product and effects on the human intestinal microbiota
(Elsevier, 2015)The effect of Akpan (yoghurt-like product) consumption on the human intestinal microbiota was examined. The prebiotic potential of Akpan was assessed by in vitro fermentation using, as inocula, individual probiotic strains ... -
Greenhouse Gases Emissions from Wastewater Treatment Plants: Minimization, Treatment, and Prevention
(Hindawi, 2016)The operation of wastewater treatment plants results in direct emissions, from the biological processes, of greenhouse gases (GHG) such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), as well as indirect ... -
Optimal experimental design in the evaluation of food packaging compliance with safety regulations
(Elsevier, 2016)The determination of diffusivity of compounds that can be transferred from packaging into food products is a keystone to ensure consumer’s safety. However, no clear guidelines exist as how the diffusion experiment should ... -
Operation of an innovative WWTP with environmental objectives. A model-based analysis
(Elsevier, 2016)Operation of wastewater treatment plants can be subjected to economic, energetic and/or environmental objectives, besides the compliance with effluent limits. As trade-offs between different objectives are frequently ... -
Monitoring and diagnosis of energy consumption in wastewater treatment plants. A state of the art and proposals for improvement
(Elsevier, 2016)In response to strong growth in energy intensive wastewater treatment, public agencies and industry began to explore and implement measures to ensure achievement of the targets indicated in the 2020 Climate and Energy ... -
Effect of oxygen on the microbial activities of thermophilic anaerobic biomass
(Elsevier, 2016)Low oxygen levels (ug O2 L-1) in anaerobic reactors are quite common and no relevant consequences are expected. On the contrary, higher concentrations could affect the process. This work aimed to study the influence of ... -
Is anaerobic digestion effective for the removal of organic micropollutants and biological activities from sewage sludge?
(Elsevier, 2016-06-14)The occurrence of emerging organic micropollutants (OMPs) in sewage sludge has been widely reported; nevertheless, their fate during sludge treatment remains unclear. The objective of this work was to study the fate of ... -
Bacterial community dynamics in long‐term operation of a pilot plant using aerobic granular sludge to treat pig slurry
(Wiley, 2016-07-08)Aerobic granular sludge represents an interesting approach for simultaneous organic matter and nitrogen removal in wastewater treatment plants. However, the information about microbial communities in aerobic granular ... -
Short and long term orange dye effects over AOB and anammox activities
(2016-09-07)In this research work the effects of orange azo dye over ammonia oxidizing bacteria (AOB) and anammox bacteria activities were tested. Adsorption onto the biomass was detected with both types of biomass however no biological ... -
Presence does not imply activity: DNA and RNA patterns differ in response to salt perturbation in anaerobic digestion
(BioMed Central, 2016-10-20)Background The microbial community in anaerobic digestion is mainly monitored by means of DNA-based methods. This may lead to incorrect interpretation of the community parameters, because microbial abundance does not ... -
Cometabolic enzymatic transformation of organic micropollutants under methanogenic conditions
(American Chemical Society, 2017-02-15)Anaerobic digestion (AD) has been shown to have the biological potential to decrease concentrations of several organic micropollutants (OMPs) in sewage sludge. However, the mechanisms and factors behind these biotransformations, ... -
Environmental assessment of biorefinery processes for the valorization of lignocellulosic wastes into oligosaccharides
(Elsevier, 2017-02-23)The European Commission is adopting strategies in order to “closing the loop” of product life cycles in industrial production systems through better recycling and re-use under the perspective of circular economy. One of ... -
Biomass aggregation influences NaN3 short-term effects on anammox bacteria activity
(IWA Publishing, 2017-03)The main bottleneck to maintain the long term stability of the partial nitritation-anammox processes, especially those operated at low temperatures and nitrogen concentrations is the undesirable development of nitrite ... -
Nitrite oxidizing bacteria suppression based on in-situ free nitrous acid production at mainstream conditions
(Elsevier, 2017-05-26)The application of autotrophic nitrogen removal processes in the main line of wastewater treatment plants will contribute to achieve its self-energy-sufficiency. However, the effective suppression of nitrite oxidizing ... -
Effects of Inoculum Type and Aeration Flowrate on the Performance of Aerobic Granular SBRs
(MDPI, 2017-07-19)Aerobic granular sequencing batch reactors (SBRs) are usually inoculated with activated sludge which implies sometimes long start-up periods and high solids concentrations in the effluent due to the initial wash-out of the ...