Activated sludge
Standardization of activated sludge for biodegradation tests
... Microbial community analysis based on fluorescent in situ hybridization (FISH) and clone library data using 16S rRNA sequence comparisons indicate that culture- dependent methods are selective and then they do not ...
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Low-Cost Electrode Modification to Upgrade the Bioelectrocatalytic Oxidation of Tannery Wastewater Using Acclimated Activated Sludge
... 2.1. Activated Sludge Acclimation to Industrial Tannery Wastewater The tannery wastewater effluent was collected from industrial tanneries of Fez ...collected. Activated sludge was collected ...
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Incorporation of hydrophobized mineral particles in activated sludge flocs: a way to assess ballasting efficiency
... WORDS Activated sludge – ballasting – floc - hydrophobicit y INTRODUCTION The overall performance of an activated sludge wastewater treatment process depends primarily on the efficiency of the ...
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Effect of ultrasonic, thermal and ozone pre-treatments on waste activated sludge solubilisation and anaerobic biodegradability
... of sludge samples: apparent viscosity decreased after all treatments but the reduction was more important with thermal ...of sludge flocs were reduced after sonication, increased after thermal treatment and ...
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Low-Cost Electrode Modification to Upgrade the Bioelectrocatalytic Oxidation of Tannery Wastewater Using Acclimated Activated Sludge
... acclimated activated sludge suggests that biosorption is an important mechanism for the heavy ...with activated sludge showed electrodeposition of low concentrations of chromium on the surface ...
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Integrating alum sludge with waste-activated sludge in co-conditioning and dewatering: a case study of a city in south France
... Alum sludge from a local waterworks was introduced to co-conditioning and dewatering with waste-activated sludge from a nearby WWTP to examine the role of the alum sludge in improving the ...
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BIOREFINE Project – Screening of phosphate accumulating organisms in samples of activated sludge taken from wastewater treatment plants
... of activated sludge taken from wastewater treatment plants At this time, many wastes are used or eliminated through processes that do not really consider their potential ...sewage sludge through ...
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The Transformation of Pristine and Citrate-Functionalized CeO2 Nanoparticles in a Laboratory Scale Aerobic Activated Sludge Reactor
... # CNRS, Aix-Marseille Universite ́, M2P2, Traitement des Eaux et des Déchets, UMR 7340, 13545 Aix-en-Provence, France ∇ Elettra-Sincrotrone, 34149 Basovizza, Trieste, Italy * S Supporting Information ABSTRACT: ...
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Biodegradation of malathion with indigenous acclimated activated sludge in batch mode and in continuous-flow packed-bed reactor
... 8- TAZDAÏT, D. , ABDI, N. , LOUNICI, H. , GRIB, H. , MAMERI, N. , PAUSS, A. Biodegradation of malathion with indigenous acclimated activated sludge in batch mode and in continuous-flow packed-bed reactor ...
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Biodegradation of malathion with indigenous acclimated activated sludge in batch mode and in continuous-flow packed-bed reactor
... Biodegradation of Malathion with Indigenous Acclimated Activated Sludge in Batch Mode and in Continuous-Flow Packed-Bed Reactor, Bioremediation Journal, 17:4, 294-304, DOI: 10.1080/10889868.2013.810189 To ...
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en fr Secondary settling tanks modeling : study of the dynamics of activated sludge sedimentation by computational fluids dynamics Modélisation des décanteurs secondaires : étude en mécanique des fluides numériques de la dynamique de la sédimentation des boues activées
... 1.2 Sludge settling theory 1.2.1 Activated Sludge Morphology Activated sludge or MLSS is a complex heterogeneous mixture of different elements: bacteria, virus, fungi, protozoa, ...
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Bod loading as a basis of design for activated sludge plants
... "Activated Sludge: (a) Diffused Air Type: For ordinary domestic sewage, given proper primary treatment, an aeration period of 6.0 hours, computed for the design flow plu[r] ...
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New insights in morphological analysis for managing activated sludge systems
... In activated sludge (AS) process, the impact of the operational parameters on process efficiency is assumed to be correlated with the sludge ...
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EFFECTS OF MALATHION ON THE MICROBIAL FLORA IN INDIGENOUS ACTIVATED SLUDGE
... Conclusions In this study, indigenous activated sludge was sampled for microbiological analysis before and after addition of malathion. Data revealed that the pesticide has been found to alter the microbial ...
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Adverse effects of antibiotics on activated sludge process: the erythromycin case
... Erythromycin had a toxicity effect on activated sludge even for the lowest concentration tested (0.3 µg/L). The toxicity effect began after a lag time that depended on the antibiotic c[r] ...
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Chitosan use in chemical conditioning for dewatering municipal-activated sludge
... H. Zemmouri, N. Mameri and H. Lounici ABSTRACT This work aims to evaluate the potential use of chitosan as an eco-friendly flocculant in chemical conditioning of municipal-activated sludge. Chitosan ...
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First results on biostimulation of denitrifying activated sludge using low frequency ultrasound
... Kinetic analysis of nitrate removal rate versus ultrasonic power and duty cycle was performed to investigate the effect of operational parameters on activated sludge activities. The be[r] ...
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Activated sludge metabolism of certain quaternary carbon compounds
... converted back to their simpler elements by the soil micro- organisms. Specific studies on the biosynthesis of.. cholesterol from lanosterol, estrogens from engrogens,[r] ...
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Biology and biochemistry of the micro-organisms in activated sludge
... While the bacteriologist argued about the mechanisms of biological oxidation of ammonia and the existence of a zoogleal stage in the bacterial life cycle, the chemists were conc[r] ...
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An executive review of sludge pretreatment by sonication
... the sludge acidification to be detrimental to US pretreatment performance, especially at low pH ...enhances sludge solubilization, anaerobic biodegradability, and methane pro- duction ( Kim et ...on ...
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