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performance comparison of Mesophilic and Thermophilic aerobic sidestream membrane bioreactors treating High strength Wastewater

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เครือข่ายคณะผู้วิจัย


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Abstract

This study compares membrane fouling and Removal efficiencies of organic and nitrogen in thermophilic (47 and 60°C) and Mesophilic (30°C) aerobic sidestream airlift membrane bioreactors (SA-MBRs). These reactors were fed with High strength molasses-based synthetic Wastewater at an organic loading rate (OLR) of 24.75kgCOD/m3d. Removal efficiencies of COD, NH4+ and TKN were compared. The sidestream filtration was conducted with microfilter and ultrafilter. SA-MBRs with microfilter were operated in continuous and Intermittent operation modes, while with the ultrafilter only Continuous operation mode was employed. The excessive membrane fouling observed in thermophilic SA-MBRs with microfilter under Continuous filtration mode, could be significantly reduced by the application of cake layer Pre-coating or replacing microfilter with ultrafilter. This membrane fouling under the thermophilic condition could be linked to higher protein generation within the reactors. Soluble COD Removal efficiencies were higher in Thermophilic conditions while the sludge yields were significantly low in thermophilic SA-MBRs. © 2010 Elsevier Ltd.

aerobic sidestream airlift membrane bioreactor (1 items found) | Thermophilic conditions (16 items found) | Intermittent operation (1 items found) | Continuous filtration (1 items found) | Removal efficiencies (97 items found) | Continuous operation (14 items found) | Membrane bioreactor (66 items found) | Membrane fouling (63 items found) | High strength (41 items found) | Sludge yield (1 items found) | Pre-coating (3 items found) | bioreactor (366 items found) | Wastewater (760 items found) | Mesophilic (22 items found) | filtration (310 items found) | membrane (394 items found) | molasses (139 items found) | nitrogen (1039 items found) | fouling (110 items found) | sludge (282 items found) | Biological Oxygen Demand Analysis | Biological water treatment | UltrafiltrationCake layer | High strength wastewater | waste component removal | COD removal efficiency | performance assessment | Performance comparison | chemical oxygen demand | waste water management | Synthetic waste water | Organic loading rates | Wastewater treatment | Thermophilic aerobic | Water Purification | Bacterial Proteins | comparative study | priority journal | Nitrogen removal | membrane reactor | Microfiltration | Polysaccharides | oxic conditions | Ultrafiltration | aerobic reactor | Waste Disposal | Micro filters | Bioconversion | filter design | Time Factors | Ultrafilters | Side streams | thermophily | Temperature | Bioreactors | filter cake | performance | for fluids | Aerobiosis | Solubility | Artificial | Membranes | Pressure | ammonium | Filters | article | Fluid |

ต้นฉบับข้อมูล : scopus