نتایج جستجو برای: Stripping phase

تعداد نتایج: 605384  

This research addresses the extraction and recovery of nickel ions from real electroplating wastewater using SLM process. The process involves three main phase system which are feed, organic and stripping phase. The feed phase containing the nickel electroplating wastewater whereas the organic phase containing the liquid membrane which was immobilized in the membrane support. The liquid membran...

Journal: Gas Processing 2015

Porous surface modified polyvinylidene ï‌‚uoride (PVDF) hollow fiber membranes are fabricated through a dry-wet phased inversion process. Surface modifying macromolecules (SMM) (1 wt. %) are used as additives in the spinning dope. The performance of the surface modified membrane in contactor application for CO2 stripping from water is assessed through the fabricated gas–liquid membrane contacto...

Extraction of nickel and its co-extraction with copper from ammoniacal media into emulsion liquid membrane systems (ELMs) was investigated using LIX 84I as the carrier. Measurement of the solute stripped in the internal phase of emulsion opened a new dimension in the study of the ELM extraction processes. The effect of operating parameters such as feed pH, initial feed concentration, and treat ...

Journal: :journal of membrane science and research 0
zabih a. tarsa chemical engineering department, mahshahr branch, islamic azad university, mahshahr, iran s. ali asghar hedayat chemical engineering department, mahshahr branch, islamic azad university, mahshahr, iran masoud rahbari-sisakht chemical engineering department, gachsaran branch, islamic azad university, gachsaran, iran

in this research, process asymmetric polyetherimide hollow fiber membranes using ethanol (0, 2 and 4 wt%) as non-solvent additive in the polymer dope via phase inversion method were fabricated. aqueous solution of 1-methyl-2-pyrrolidine (nmp) (90%) was applied as a bore fluid to avoid inner skin layer formation and water was used as the external coagulant. the morphology of fabricated membranes...

Journal: :journal of membrane science and research 0
mathurkumar shambhubhai bhakhar gujarat technological university, ahmedabad bina r sengupta the maharaja sayajirao university of baroda, vadodara ranjan a sengupta the maharaja sayajirao university of baroda, vadodara

extraction of nickel and its co-extraction with copper from ammoniacal media into emulsion liquid membrane systems (elms) was investigated using lix 84i as the carrier. measurement of the solute stripped in the internal phase of emulsion opened a new dimension in the study of the elm extraction processes. the effect of operating parameters such as feed ph, initial feed concentration, and treat ...

Journal: :Biochemical Society transactions 1991
T Sirman L Pyle A S Grandison

Liquid membranes usually consist of an extracting agent (carrier) in an organic solvent which separates "feed" and "stripping" phases containing aqueous solutions of the solute of interest and a stripping agent, respectively. In supported liquid membranes (SLMs) the membrane solution is immobilised into a thin solid microporous support, between the feed and stripping phases where transport is f...

2013
S. Elumalai G. Muthuraman

In the liquid liquid extraction (LLE) the extraction of rhodamine B (RB) from aqueous solutions by using 0.8M phenol in xylene was studied. The influencing parameters such as the effect of pH of the aqueous phase, the effect of extractant concentration, the effect of diluents and the stripping reagents has been investigated. The maximum extraction efficiency was obtained at pH 1±0.1 and the max...

Masoud Rahbari-Sisakht, S. Ali Asghar Hedayat Zabih A. Tarsa

In this research, process asymmetric polyetherimide hollow fiber membranes using ethanol (0, 2 and 4 wt%) as non-solvent additive in the polymer dope via phase inversion method were fabricated. Aqueous solution of 1-methyl-2-pyrrolidine (NMP) (90%) was applied as a bore fluid to avoid inner skin layer formation and water was used as the external coagulant. The morphology of fabricated membranes...

2009
Agus Zainal Arifin Adhi Kerta Mahendra Henning Titi Ciptaningtyas

Ants algorithm is a universal and flexible solution which was first designed for solving optimization problem such as Traveling Salesman Problem. Analogy between finding the shortest way by ants and finding documents most alike, became a stimulus of ant based text document clustering method. This method consist of two phases, which are finding documents most alike (trial phase) and clusters mak...

2002
DRORA KAPLAN

-The distribution of toxic heavy metals was studied throughout the process of treatment of domestic wastewater by stabilization ponds. The concentrations and distribution of free and bound zinc, cadmium, lead and copper through the various stages of a treatment plant were analyzed by Anodic Stripping Voltammetry (ASV). Only a slight decrease in the total metals concentration was observed during...

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