The document discusses liquid membrane separation processes in hollow fibre contactors. It defines a membrane as an interface that separates phases and restricts transport. There are three types of liquid membranes - bulk, supported, and emulsion. Supported liquid membranes use hollow fibres to immobilize the liquid membrane. Liquid membrane separation involves a source, liquid membrane, and receiving phase. Applications include recovery of metals from wastewater and electroplating solutions, and use in biomedical and analytical fields. The history of liquid membranes dates back to the 1960s and 1970s with developments in immobilized, emulsion, and thin film liquid membranes.

1. LIQUID MEMBRANE SEPARATION PROCESSES
IN HOLLOW FIBRE CONTACTORS
Presented by,
KANCHAN D. RAMTEKE
MT17MCL011

2. CONTENT
Introduction
History of liquid membranes
Classification according to module design configurations
Application
Abstract
Poster

3. Definition of a membrane:
It is an interface that separates the two phases and restricts the transport of various chemical species through it.
Semipermeable membrane:
A semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain
molecules or ions to pass through it by diffusion or occasionally by more specialized processes of facilitated
diffusion, passive transport or active transport.
Module :3 Membrane based separation processes Dr. Sirshendu De Professor, Department of Chemical Engineering Indian Institute of Technology, Kharagpur
https://en.wikipedia.org/wiki/Semipermeable_membrane

4. What is membrane separation????
Membrane separation is a technology
which selectively separates (fractionates)
materials via pores and/or minute gaps in
the molecular arrangement of a
continuous structure. Membrane
separations are classified by pore size and
by the separation driving force.
http://www.smartmembranesolutions.co.nz/membrane-classifications/
https://www.asahi-kasei.co.jp/membrane/microza/en/kiso/kiso_1.html

5. Terms Used:
Permeate Retentate Permeability Retention

6. Retention
Observed retention: (Selectivity)
The extent of separation of a
membrane can produce with respect to
the solute concentration in the feed.
Ro=1−
𝐶 𝑝
𝐶o
Real retention:
The partition of the solute
concentration across the membrane.
Rr=1−
𝐶 𝑝
𝐶 𝑚
Real retention is always greater than observed retention.
For complete solute retention, Rr=1

7. History of liquid membranes
1967 – Ward
&Rob:
Immobilized
liquid
membranes
1968 – Lee:
Emulsion liquid
membranes
1977 – Goddard:
Models of facilitated
transport
1980 – Leblanc:
The membranes with
builded-in carriers.
Facilitated transport.
1983 –
Kuo&Gregor:
Thin film liquid
membranes

8. Liquid
Membranes:-
A liquid acting as a semipermeable barrier between
two fluid phases.
Driving Force:- Solute concentration gradient. (in most cases)
Mechanism:- Solution-diffusion (sometimes also chemical reaction)
Liquid
Membrane
Transport
Liquid-Liquid extraction (LLX) and membrane
separation in one continuously operating device.
http://www.etseq.urv.es/assignatures/ops/presentacio_membranes.pdf

9. Classification according to module design configurations
Three groups of
liquid membranes
1. Bulk liquid
membrane (BLM)
2. Supported liquid
membrane (SLM) or
immobilized liquid
membrane ( ILM)
3. Emulsion liquid
membrane (ELM)

10. F- Source or feed phase
E- Liquid membrane
R- Receiving phase.
Liquid Membranes Principles and Applications in Chemical Separations and Wastewater Treatment Elsevier Editor- Vladimir S. Kislik Page No. 04
Hollow-fiber-supported-liquid-membrane-system

11. APPLICATIONS OF MEMBRANE PROCESSES
http://www.etseq.urv.es/assignatures/ops/presentacio_membranes.pdf

12. Application Liquid
membranes
Biotechnological and environmental sciences
Recovery of zinc from wastewater in the viscose fiber industry
Recovery of nickel from electroplating solutions
Biomedical and analytical fields
Hydrometallurgical processes
SEPARATION PROCESS PRINCIPLES Chemical and Biochemical Operations THIRD EDITION J. D. Seader Page No. 501 Table 14.1 (8)

14. LIQUID MEMBRANE SEPARATION PROCESSES IN HOLLOW FIBRE CONTACTORS
Kanchan D. Ramteke
Visvesvaraya National Institute of Technology
Introduction
Definition of a membrane:
It is an interface that separates the two phases and restricts the transport of various
chemical species through it.
Semipermeable membrane:
A semipermeable membrane is a type of biological or synthetic,
polymeric membrane that will allow certain molecules or ions to pass through it by
diffusion—or occasionally by more specialized processes of facilitated diffusion, passive
transport or active transport.
What is membrane separation????
Membrane separation is a technology which selectively separates (fractionates) materials
via pores and/or minute gaps in the molecular arrangement of a continuous structure.
Membrane separations are classified by pore size and by the separation driving force.
Application Liquid membranesDiagram
History
1967 –
Ward
&Rob:
Immobili
zed
liquid
membran
es
1968 – Lee:
Emulsion
liquid
membranes
1977 –
Goddard:
Models of
facilitated
transport
1980 –
Leblanc:
The
membranes
with builded-
in carriers.
Facilitated
transport.
1983 –
Kuo&Grego
r:
Thin film
liquid
membranes
Classification according to module design
F- Source or feed phase
E- Liquid membrane
R- Receiving phase
Application Liquid
membranes
Biotechnological and environmental sciences
Recovery of zinc from wastewater in the viscose fiber industry
Recovery of nickel from electroplating solutions
Biomedical and analytical fields
Hydrometallurgical processes
References
https://en.wikipedia.org/wiki/Semipermeable_membrane
SEPARATION PROCESS PRINCIPLES Chemical and Biochemical Operations THIRD EDITION J. D. Seader Page No. 501 Table 14.1 (8)
http://www.etseq.urv.es/assignatures/ops/presentacio_membranes.pdf