this research was conducted in continuous flow bench scale fixed activated sludge (fas) and anaerobic filter (af). the main objective of the research was to study the feasibility and efficiency of the mentioned systems for cr (vi) removal. in fas reactor, cr (vi) was adsorbed from influent to mlss in the range of 89 to 99 percent and the adsorption followed freundlich isotherm. in af reactor, c...

A chemical reactor is one of the primary components of a chemical industry used for containing exothermic and endothermic chemical reactions. It is used for the chemical reactions which have heating and cooling of one or more than one chemical. There is a need to control the temperature in chemical reactor. In this research paper, a comparative study of performance of different controllers is p...

A fixed bed reactor design program is developed by the use of Java JDK1.7 algorithm language with Eclipse program as the platform. The program selects five common fix bed reactor process flows to calculate the main structure parameters of the reactor. With the good interface, the program can output the corresponding results after inputting the kinetics and thermodynamics parameters of the react...

At the ENEA TRIGA research reactor (Casaccia Research Center, Rome), a new neutron collimator has been designed and installed at the neutron tangential channel. This collimator, that is part of a neutron/X-ray facility for NDT analysis, was experimentally characterized and optimized in terms of thermal neutron flux, its spatial/energetic distribution, photon air KERMA and effective beam diamete...

Preliminary work has started for the decommissioning of the research reactor MR at the RRC «Kurchatov Institute». One of stages of preliminary work for the decommissioning of a research reactor is the carrying out of radiation survey. An automatic system Gamma locator for the remote measurement of radioactivity in the reactor areas was developed. The «gamma locator» is a spectrometric system de...

The implementation of hydrogenotrophic denitrification is limited due to safety concerns, poor H2 utilization and low solubility of H2 gas with the resulting low transfer rate. The current paper presents the main research work conducted on a pressurized hydrogenotrophic reactor for denitrification that was recently developed. The reactor is based on a new concept suggesting that a gas-liquid eq...

Introduction: Detergents lead to many environmental problems. The main aim of this study was to evaluate sequencing batch reactor (SBR) efficiency on Linear alkyl benzene sulfonate (LAS) removal. Materials and Methods: In this experimental study, to investigate the removal efficiency of LAS, a SBR reactor was used. A roughly 12-hour operating cycle was chosen which included the discharge time ...