This paper reports an approach to enable rapid concentration and recovery of bacterial cells from aqueous chicken homogenates as a preanalytical step of detection. This approach includes biochemical pretreatment and prefiltration of food samples and development of an automated cell concentration instrument based on cross-flow microfiltration. A polysulfone hollow-fiber membrane module having a ...

With the advent of rigorous membrane research and development in middle 20th century, more wastewater plants started incorporating Membrane BioReactors (MBR) their design. However, being a system, MBR is subject to fouling which may lead maintenance cleaning costs. In this paper, monitoring prediction tool has been designed MATLAB\Simulink. The model takes states related fouling, calculates tot...

Adsorption of organic foulants on nanofiltration (NF) and reverse osmosis (RO) membrane surfaces strongly affects subsequent fouling behavior by modifying the membrane surface. In this study, impact on organic foulant adsorption of specific chemistries including those in commercial thin-film composite membranes was investigated using self-assembled monolayers with seven different ending chemica...

background and aims: nowadays heavy metals are the environmental priority pollutants and are becoming as the most serious environmental problems. in recent years removing those from diverse industrial effluents and metal cleaning have been studied. the aim of the present study was to investigate the different methods for cooper removal of cooper ions from industrial wastewater. methods: this st...

Water contaminated with low concentrations of pollutants is more difficult to clean up than that high pollutant content levels. Membrane separation provides a solution for removing from water. However, membranes are prone fouling, losing performances over time. Here we synthesized neutral (IM-NH2) and positively charged (IL-NH2) imidazole derivatives chemically functionalize membranes. With dis...

The MARAPUR concept is a biological wastewater treatment process based on the MBR functional principle. The ultrafiltration of activated sludge takes place in pressure-driven hollow fiber membranes. The vertical membrane modules are installed compactly in a MEGAMODUL. The permeate extraction is accomplished in the cross-flow, which is supported by rinsing aeration. The main process advantages a...

Abstract The alternative membrane cleaning method Temperature Enhanced Backwash exploits elevated temperatures of typically 125 °C to realize high shear rate. This exceeds usual operating by far. Therefore, the thermo‐mechanical properties polymeric membranes were investigated. A repeated load cycle testing was suited and sensitive detect failure material potting. All tested PES showed be stabl...

mechanical, hydraulic, and chemical washing methods are the most common methods for sewer line cleaning. each of these methods includes several sub methods. rodding and bucket machine are the two most important of mechanical cleaning methods, whereas high-speed and flushing are the most important hydraulic cleaning methods. acids, alkalis, surfactants, and enzymes are widely used materials in s...