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توضیحات محصول دانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment (کد14620)
دانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment
\nThe Potential of Membrane Bioreactors for Wastewater Treatment
\n عنوان های پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment ، 00The Potential of Membrane Bioreactors for Wastewater Treatment عبارتند از :
\n\nThe Potential of Membrane Bioreactors for Wastewater Treatment\nThe Potential of Membrane Bioreactors for Wastewater Treatment\nPresentation Aim & Layout\nBasics on MBR
\nThe Potential of Membrane Bioreactors for Wastewater Treatment
\nProcess Basics\nProcess Basics
\nدانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment
\nSubmerged MBR System\nAssessment of MBR Technology\nFull-Scale WWTP in Germany
\nThe Potential of Membrane Bioreactors for Wastewater Treatment
\nFull-Scale WWTP in Italy\nConclusions from the examination of full-scale installations
\nدانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment
\nAdoption of full-scale MBR in Greece\nState-of-the-art Research
\nThe Potential of Membrane Bioreactors for Wastewater Treatment
\nMembrane Fouling\nMain Parameters Influencing Fouling
\nدانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment
\nPromising research areas related to membrane fouling\nSystem Microbiology
\nThe Potential of Membrane Bioreactors for Wastewater Treatment
\nPromising research areas related to microbiology\nConclusions
\n\n
\n\nتکه ها و قسمت های اتفاقی از فایل The Potential of Membrane Bioreactors for Wastewater Treatment ، The Potential of Membrane Bioreactors for Wastewater Treatment
\nFull-Scale WWTP in Italy (2)\nConclusions from the examination of full-scale installations (1)\nFull-scale MBR provide a superior effluent quality compared to conventional methods\n\nThe final effluent can meet the requirements of the Urban Wastewater Directive 91/271/EEC even for P.E. >100,000 with disposal to sensitive recipients (TN <10 mg/l, TP < 1mg/l)\n\nدانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment\n\nFinal effluent conforms to the microbiological requirements for bathing waters (Directive 76/160/EEC), without the need for further disinfection with chlorine or ozone\n\nConclusions from the examination of full-scale installations (1)\nEnhance reuse options of secondary effluent\n\nThe Potential of Membrane Bioreactors for Wastewater Treatment\n\nHowever:\nthe stricter microbiological criteria for agricultural reuse are not met and further disinfection is required\n\nMain barrier to their wider full-scale adoption is the high operational cost and the lack of economies of scale\n\nAdoption of full-scale MBR in Greece\nCurrently there is no full-scale MBR system\n\nIt is an attractive solution for arid and semi-arid regions and islands characterized by:\nWater scarcity\nSmall/Medium P.E.\nCoastal zones and seas of high aesthetic value\nLimited land availability\nLarge seasonal changes in populations\n\nThe Potential of Membrane Bioreactors for Wastewater Treatment\nState-of-the-art Research\nMBR technology has resulted in multidiscipline research, since it brings together the topics of system design and construction, hydrodynamics, chemistry and microbiology.\nThis work focuses on the topics of:\nMembrane fouling\nSystem microbiology\nMembrane Fouling (1)\n\nدانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment\n\nBiofouling is the dominant type of membrane fouling in MBRs\nDefinition: the undesirable deposition and accumulation of microorganisms, EPS and cell debris\nMain operating problem impeding the widespread adoption of MBR to full-scale plants\nMembrane Fouling (2)\nBiofilm develops due to the following mechanisms:\nAdsorption of macromolecules\nAdhesion of micro-molecules which are easily attached from the liquid under suspension to the membrane’s surface\nCreation of colonies and growth of micro-organisms on and within the biofilm\nDetachment mechanisms attributed mainly to shear forces\nMain Parameters Influencing Fouling (3)\n\nThe Potential of Membrane Bioreactors for Wastewater Treatment\n\nMembrane parameters\nConfiguration\nMaterial\nPore Size\nHydrophobicity\nOperating Parameters\n\nدانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment\n\nHRT/SRT\nAeration system\nTMP and flux\nBiomass characteristics\nEPS\nSMP\nMLSS\n\nThe Potential of Membrane Bioreactors for Wastewater Treatment\n\nThe degree of influence of each biomass characteristic varies depending on the operating conditions and particularly SRT\n\nResearch is often contradictory\n\nNo universally adopted relationships relating fouling to its main influencing parameters\nPromising research areas related to membrane fouling (4)\nModeling the development of biofilm (determining thickness, concentration gradient of nutrients and DO etc)\n\nDerive relationships describing the degree of fouling with respect to operating and biomass characteristics\n\nThe ultimate goal is to model long-term fouling\nSystem Microbiology (1)\nSludge Filterability\n\nدانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment\n\n \n\nImpacts on filtration and fouling\nImproved sludge filterability retards the degree of fouling and thus prolongs the life of the membrane\nBiomass characteristics\nMBR produce 20-50% less sludge than conventional systems as they operate at higher SRT\nFloc size depends on the SRT value and on the MBR configuration\nPresence of small flocs, single cells and free-swimming bacteria\nFilamentous micro-organisms are favored (absence of FST, low F/M ratios)\n\nThe Potential of Membrane Bioreactors for Wastewater Treatment\n\nSystem Microbiology (2)\n\nدانلود پاورپوینت The Potential of Membrane Bioreactors for Wastewater Treatment\n\nOrganic & nutrient removal\nExamined extensively through pilot-plants and bench-scale experiments\nInnovative processes have been tested (e.g. use of a single reactor for simultaneous nitr-denitr by maintaining the DO level at 1mg/l)\n\nPromising research areas related to microbiology (4)\nExtensive analysis of the microbiology and physiology of micro-organisms which develop both in the liquid under suspension and on the membrane surface. Examination of the differences in the microbial populations\n\nThe Potential of Membrane Bioreactors for Wastewater Treatment\n\nDetermine the influence of certain factors (e.g. pH, organic loading, SRT) on filterability\nConclusions\nMBR technology is compatible with Greek needs of wastewater treatment\nPromising research themes:\nDevelop model that will predict long-term fouling\nFind cost effective additives which can reduce fouling\nDetermine the operating factors which affect filterability\nExtensive microscopic analysis of the biomass\n\n30 تا 70 درصد پروژه | پاورپوینت | سمینار | طرح های کارآفرینی و توجیهی | پایان-نامه | پی دی اف مقاله ( کتاب ) | نقشه | پلان طراحی | های آماده به صورت رایگان میباشد ( word | pdf | docx | doc | )
