Results 61 to 70 of about 197 (135)

Basic acoustic parameters of organic solvents used in ultrasonic cleaning

open access: yesArchives of Acoustics, 2016
Sound velocities have been measured and the specific acoustic impedance calculated for the following solvents used in the process of ultrasonic cleaning (commercial technical products): trichloroethylene, tetrachloroethylene, 1,1,1-trichloroethane ...
Bogdan NIEMCZEWSKI, Teresa SZLAGOWSKA
doaj  

Aggregate risk assessment of VOCs exposure in residents near Busan’s Sinpyeong and Jangrim industrial complexes

open access: yesAsian Journal of Atmospheric Environment
This study aimed to assess the aggregate health risks associated with multi-pathway exposure to volatile organic compounds (VOCs) in the ambient air near the Sinpyeong and Jangrim industrial complexes in Busan, South Korea. As part of efforts to evaluate
Ji-Yun Jung   +4 more
doaj   +1 more source

Permeable Adsorbing Barrier for Groundwater Protection from Single-Compounds and Multicomponent Contamination by Chlorinated Organic Compounds

open access: yesChemical Engineering Transactions, 2013
This work deals with the application of a Permeable Adsorbing Barrier (PAB) for the remediation of an aquifer contaminated by Tetrachloroethylene (PCE) and Trichloroethylene (TCE).
I. Bortone   +4 more
doaj   +1 more source

A Heuristic Procedure to Optimize the Design of a Permeable Reactive Barrier for Groundwater Remediation

open access: yesAdsorption Science & Technology, 2014
This paper deals with a procedure to optimize the design of permeable reactive barrier (PRB) built with activated carbon for the in situ remediation of a polluted aquifer.
A. Di Nardo   +4 more
doaj   +1 more source

Design of Permeable Adsorbing Barriers for Groundwater Protection: Optimization of the Intervention

open access: yesChemical Engineering Transactions, 2014
The remediation of polluted groundwater can be proficiently achieved with an in situ technology based on the use of Permeable Reactive Barriers (PRBs). In particular, this work deals with the design of a PAB made with activated carbon for the remediation
I. Bortone   +5 more
doaj   +1 more source

Development of an Inclined Plate Extractor-Separator for Immiscible Liquids

open access: yesEnergies, 2009
A new inclined plates extractor-separator is developed for operation with immiscible liquids in which extraction and separation is achieved in one unit contrary to mixer settlers.
Syed Zahoor ul Hassan Rizvi   +3 more
doaj   +1 more source

Tetrachloroethylene Removal Rate from Aqueous Solutions by Pumice Doped with Copper: An Evaluation of the Effect of pH

open access: yesAvicenna Journal of Environmental Health Engineering, 2016
Tetrachloroethylene (TCE) is a chlorinated aliphatic hydrocarbon, used in many industries. Effective and efficient treatment of industrial wastewater, containing TCE, is one of the environmental requirements.
Ali Almasi   +7 more
doaj   +1 more source

Synthesis and Characterization of Co+2,Ni+2,Cu+2 ,Zn+2 and Hg+2 Complexes With 1,1,2,2-Tetrakis (Sodium Thiolactate) Ethylene

open access: yesScience Journal of University of Zakho, 2013
The new ligand 1,1,2,2-tetrakis(sodium thiolactate) ethylene, has been prepared from the reaction of disodium salt of thiolactic acid and tetrachloroethylene in (4:1) molar ratio.
N. H. Buttrus
doaj  

Dispersive Liquid–Liquid Chelate Microextraction of Rare Earth Elements: Optimization and Greenness Evaluation

open access: yesMetals
An ultrasound-assisted dispersive liquid–liquid microextraction (DLLME) method was developed to concentrate and quantify rare earth elements (REEs) (Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) in acidic aqueous solutions ...
Milica Delić   +4 more
doaj   +1 more source

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