نتایج جستجو برای: sludge characterization

تعداد نتایج: 389479  

Journal: :iranian journal of health sciences 0
mehdi ahmadi 2department of environmental health engineering, ahvaz jundishapur university of medical sciences, ahvaz, iran nikoo bayati department of environmental sciences, ahvaz science and research branch, islamic azad university, ahvaz, ali akbar babaei 2department of environmental health engineering, ahvaz jundishapur university of medical sciences, ahvaz, iran pari teymouri department of environmental health engineering, kurdistan university of medical sciences, sanandaj, iran

background and purpose: disposing sludge from industrial wastewater treatment plants (iwwtps) is a serious issue because it can affect human and animals health, and also environmental quality. in this study, sludge from an iwwtp was analyzed regarding its physicochemical characteristics and disposal options. materials and methods: grab sampling was used to collect 12 sludge samples biweekly (ma...

Journal: :iranian journal of public health 0
mahad s baawain 1. center for environmental studies and research (cesar), sultan qaboos university, muscat , sultanate of oman. mohsin al-jabri 2. sohar industrial port company, sohar , sultanate of oman. b s choudri 1. center for environmental studies and research (cesar), sultan qaboos university, muscat , sultanate of oman.

there are more than 350 wastewater treatment plants distributed across different parts of oman. some of them produce large quantities of domestic sewage sludge, particularly this study focused on characterizing domestic sludge of six treatment plants that may contain various pollutants, therefore the proper management of domestic sewage sludge is essential.samples of domestic sewage sludge were...

2008
D. P. Mesquita O. Dias A. L. Amaral E. C. Ferreira

In activated sludge systems, the sludge settling ability is considered a critical step where filamentous bulking and biomass deflocculation are the most common problems, causing the reduction of the effluent quality. Furthermore, in recent years image processing techniques have been successfully used to elucidate the activated sludge morphology. Keeping that in mind, a program was developed for...

Journal: :Bioprocess and biosystems engineering 2009
D P Mesquita O Dias A L Amaral E C Ferreira

In recent years, a great deal of attention has been focused on the research of activated sludge processes, where the solid-liquid separation phase is frequently considered of critical importance, due to the different problems that severely affect the compaction and the settling of the sludge. Bearing that in mind, in this work, image analysis routines were developed in Matlab environment, allow...

Journal: Pollution 2019

Management of solid wastes is considered as an economic and environmental issue in the building stone industry. The current study uses raw and calcined calcareous sludge, generated in the stone cutting factories, in order to remove sulfur dioxide. Sludge characterization has been performed, using X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-d...

2002
M. A. Pereira K. Roest

Morphological changes in anaerobic granular sludge fed with increasing loads of oleic acid were quantified by image analysis. The combination of this technique with data on the accumulation of adsorbed long chain fatty acid give insight into the mechanisms of sludge disintegration, flotation and washout The molecular characterization of microbial community indicated that the bacterial domain wa...

1999
Vincent M. Maillard John T. Novak John C. Little

ii Acknowledgments iv List of Tables vii List of Figures viii 1.0 Literature Review 1 Background 1 Raceway System Farms 1 Aquacultural Effluent Treatment 2 Settling Ponds 2 Sediment Traps 3 Tube and Plate Settlers 3 Microscreens 4 Filter Beds 5 Flotation 6 Raceway Baffles 7 Ozone 8 Wetlands 9 Swirl Separators 9 Aquacultural Sludge Treatment and Disposal 10 Landfills 10 Land Application 10 Compo...

2003
M. A. Pereira K. Roest A. J. M. Stams A. D. L. Akkermans A. L. Amaral N. Pons E. C. Ferreira M. Mota M. M. Alves

Morphological changes in anaerobic granular sludge fed with increasing loads of oleic acid were quantified by image analysis. The combination of this technique with data on the accumulation of adsorbed long chain fatty acid and with the molecular characterization of microbial community gave insight into the mechanisms of sludge disintegration, flotation and washout. It was found that the bacter...

Management of solid wastes is considered as an economic and environmental issue in the building stone industry. The current study uses raw and calcined calcareous sludge, generated in the stone cutting factories, in order to remove sulfur dioxide. Sludge characterization has been performed, using X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-d...

2013
N. M. Mokhtar R. Omar Mohammad Salleh A. Idris

In this study, characterization of filtrated cake of sludge drying section from a petroleum refinery wastewater treatment plant in Melaka was carried out with the objective to analyze its chemical, physical and fuel characteristics. Proximate analysis, ultimate analysis and higher heating value (HHV) are very important in chemical and fuel characterization. Dielectric properties and density tes...

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