0000000000067079

AUTHOR

Alessandro Di Biase

showing 2 related works from this author

Effect of extended famine conditions on aerobic granular sludge stability in the treatment of brewery wastewater

2017

Results obtained from three aerobic granular sludge reactors treating brewery wastewater are presented. Reactors were operated for 60 d days in each of the two periods under different cycle duration: (Period I) short 6 h cycle, and (Period II) long 12 h cycle. Organic loading rates (OLR) varying from 0.7 kg COD m-3 d-1 to 4.1 kg COD m-3 d-1 were tested. During Period I, granules successfully developed in all reactors, however, results revealed that the feast and famine periods were not balanced and the granular structure deteriorated and became irregular. During Period II at decreased 12 h cycle time, granules were observed to develop again with superior structural stability compared to the…

Environmental Engineering0208 environmental biotechnologySewageBioengineering02 engineering and technologyBiological Oxygen Demand AnalysisWastewater010501 environmental sciencesWaste Disposal Fluid01 natural sciencesIndustrial wastewater treatmentBioreactorsExtracellular polymeric substanceBioreactorFood IndustryWaste Management and Disposal0105 earth and related environmental sciencesBiological Oxygen Demand AnalysisSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleBacteriaSewageRenewable Energy Sustainability and the Environmentbusiness.industryChemistryGranule (cell biology)Environmental engineeringGeneral MedicinePulp and paper industryAerobiosisCarbon020801 environmental engineeringWastewaterExtracellular polymeric substances Feast/famine Aerobic granular sludge Industrial wastewater StabilityFaminebusinessBioresource Technology
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Aerobic granular sludge treating anaerobically pretreated brewery wastewater at different loading rates.

2020

Abstract In this study, three different aerobic granular sludge (AGS) reactors fed with anaerobically pre-treated brewery wastewater were studied. The AGS reactors were operated under different conditions including organic loading rates (OLR) between 0.8 and 4.1 kg COD m−3 d−1, C:N:P ratios (100:10:1 and 100:6:1) and food to microorganism ratios (F/M) between 0.8 ± 0.6 and 1.2 ± 0.5 and 0.9 ± 0.3 kg-TCOD kg-VSS−1d−1. Stable granulation was achieved within two weeks and the size of the granules increased according to the OLR applied. The results indicated that low C:N:P and F/M ratios were favorable to achieve stable aerobic granules in the long term. The carbon removal rate was load-indepen…

Environmental EngineeringMicroorganismchemistry.chemical_element02 engineering and technology010501 environmental sciencesWastewater01 natural sciencesFood to microorganism ratioWaste Disposal FluidGranulationBrewery wastewaterNutrientAnimal scienceBioreactors020401 chemical engineeringNutrient removal0204 chemical engineering0105 earth and related environmental sciencesWater Science and TechnologySettore ICAR/03 - Ingegneria Sanitaria-AmbientaleSewageChemistryMicrobiotaPerformance resultsAerobiosisWastewaterMicrobial population biologyAerobic granular sludgeAerationCarbonOrganic loading rateWater science and technology : a journal of the International Association on Water Pollution Research
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