This work focuses on the numerical modelling and experimental validation of hydrodynamic behaviour a novel 50 kWth indirectly heated bubbling fluidized bed steam reformer. The beds with immersed vertical tubes complex geometries in general have not been thoroughly investigated terms coupled for pilot scale reactors. Therefore, present study contributes to hydrodynamics field, while investigatin...

Problem statement: For the purpose of supporting application services in the Ubiquitous Sensor Network (USN) environment, efficient processing of stream data that occur in the sensor nodes and relevant utilization technologies are being studied. Approach: The conversion of various sensor stream data that occur in the sensor nodes into sensor data suitable for use in the upper-level application ...

Side-stream management in food processing companies has the potential to improve sustainability performance by upcycling or managing bio-residuals into high-value products. This article investigates how manage their side-streams studying reports, interviewing companies, identifying external internal side-stream alternatives, and qualitatively analyzing data. By learning more about prefer side-s...

The treatment of perchlorate-contaminated groundwater was examined using two side-by-side pilot-scale fixed-bed bioreactors packed with sand or plastic media, and bioaugmented with the perchlorate-degrading bacterium Dechlorosoma sp. KJ. Groundwater containing perchlorate (77microg/L), nitrate (4mg-NO(3)/L), and dissolved oxygen (7.5mg/L) was amended with a carbon source (acetic acid) and nutri...

Different experimental approaches to measuring catalytic reaction efficiencies on thermal protection system materials are reviewed. Special emphasis is given to the theory and application of the diffusion tube side-arm reactor technique. In this technique, reactants diffuse into a dead-end tube and are progressively removed from the gas phase by surface reactions on the walls, establishing uniq...

A device has been developed to increase and control the cell concentration in continuous culture fermentation reactors. This cell control device, used to study mixed culture methane fermentations, was developed because it is necessary to obtain cell concentrations much higher than can be obtained in a single stage reactor by adjustment of residence time or substrate concencentration. Designed a...

The present study evaluated different sludge-reduction mechanisms in the oxic-settling-anaerobic (OSA) process terms of their effects on methane productivity by anaerobic digestion sewage sludge. Two layouts were investigated for sludge return from an side-stream reactor (ASSR) to anoxic (scheme A) or aerobic B) a pre-denitrification plant. Biochemical methane-potential (BMP) assays performed e...

Direct non-oxidative methane conversion (DNMC) is one of the most promising options to convert (CH4) in natural gas remote extraction sites liquid aromatics, which easier transport compared CH4 gas. The main constraint DNMC low conversion, and thus aromatics product yield due thermodynamic limitation. This work reports a recycle reactor/hydrogen (H2) membrane separator achieve high by circumven...

Agroindustrial by-products hold an enormous potential to be bioconverted into high-value-added products such as polyhydroxyalkanoates (PHA), a cost-effective alternative conventional plastics. In this study, cheese whey, highly abundant side stream of the making process, was explored feasible substrate for selection mixed culture enriched in PHA-storing bacteria using sequencing batch reactor u...

The goal of this study is to investigate the performance of a pilot-scale trickle-bed air biofilter (TBAB) for treating volatile organic compounds (VOCs) emitted from a manufacturer of optoelectronic apparatus. Different empty-bed residence times (EBRTs) of 90, 60, 30, 20 and 15 s were evaluated. Greater than 90% VOC removal efficiencies were achieved at EBRTs longer than 20 s. EBRTs of 20-30s ...