Modeling and simulation of fixed-bed reactors is usually based on classical pseudo-homogeneous modeling approaches that rely on simplifying assumptions and the use of semiempirical effective parameters, which have been adopted to results obtained from a certain experimental setup. This inevitably leads to problems when trying to perform reliable simulations for a priori predictions and optimiza...

This research paper presents a detailed review of the recent advances concerned with carrying out efficient solar chemical reactions by reviewing most reactors available in literature that use solid-gas or pyrolysis processes. Major groups chemistry design and manufacture wide range reactor configurations, widths, sizes, including directly radioactive particles. Solar heat up to 1000℃ can be ut...

The influence of backwashing on biological perchlorate reduction was evaluated in two laboratory scale fixed bed biofilm reactors using 1- or 3-mm glass beads as support media. Influent perchlorate concentrations were 50 microg/L and acetate was added as the electron donor at a concentration of 2 mg C/L. Perchlorate removal was evaluated at various influent dissolved oxygen (DO) concentrations....

Production of bio-based materials in biorefineries is coupled with the generation organic-rich process-wastewater that requires further management. Anaerobic technologies can be employed as a tool for rectification such hazardous by-products. Therefore, 5-hydroxymethylfurfural and its components were investigated their biodegradability continuous anaerobic process. The test included 5-hydroxyme...

In response to the growing trend of greenhouse gas emissions from production and use conventional fuels, COx free hydrogen generation is introduced as an alternative efficient energy carrier. Due hydrogen’s storage challenges, more be produced on-site by other chemical compounds for fuel cell applications. This work outlines (H2) ammonia (NH3) hydrous hydrazine (N2H4·H2O) catalytic decompositio...