Graft polymeric and ion-exchange membranes

Graft polymeric and ion-exchange membranes

?? lower chemical ?? lower during use; and production of chemical sludge for of June 1999. 1999 permission. disposal. (Reprinted AWWA ...

171KB Sizes 2 Downloads 69 Views

??

lower chemical

??

lower

during

use; and

production

of chemical

sludge

for

of

June 1999.

1999

permission.

disposal.

(Reprinted

AWWA

Copyright

3.

from Proceedings

Annual

Zenon

Environmental

acknowledges

the

Foundation

is the joint

information

on which

Zenon

for the

information same

The

of the technical

Systems financial,

the

technical

and

funding

and

through

which

article

Membrane

American

Water

Removal.

Annual

1999.

this

was

Works

Conference

on a paper presented

at

Association

held

in

with

Applicant: Ballard This invention in which

tri-fluorovinyl

are radiation-graft

preformed

polymeric

membranes structure

base

which are prepared are also discussed.

include

certain

groups,

towards

the introduction

group per monomer

dialysis

membrane

which

reaction

or

unit in the grafted

membranes

applications,

and

applications,

electrolytes

are useful

particularly for

in

covered

with

electrochemical

residues

Inventors:

Jarvinen,

K.

to

J.

and

adhesive

into

administering

the opening

such as drugs and nucleic substances

proteinaceous

substances

environmentally physiological

are

sensitive conditions

non-physiological which

for

The

by fitting

and

attached

by the plaster

under

M. Heitmann,

released

under

with

a solvent,

Otto,

K. Siemon,

T

of membranes,

sticks,

sheets,

plates,

in the form test tubes,

reacted with a fuel. Hot

to

product generate

the

compress

the feedstock.

gas may

then

power

Expanded

be recovered

into

a

necessary

to

nitrogen-rich

from

the

turbine

exhaust. Gottzmann,

R.

Prasad,

N.R.

Publication date: 27 May 1999

Microporous

a filter with

a result,

the

since

strip when

Technology

method

of is

m/min

it is not

obtain

a polymer

the filter is

annealed

V Harms, Koch,

H.-J.

a in

and drawing

at a temperature film.

This

it at a rate of

of lo-150°C polymer

to

film

using an ion-particle

process

energised

at 1O-2

keV, at an irradiating

distance

of 5-100

under

It

involve

is

for 10 s to 1 h, and both of its surfaces

a

vacuum polymer

of

1O-2-1O-8

film is then

series of cold and hot stretching

Inc, USA

patent.

These

ions/cm2,

irradiated

production

microporous

this

of steps.

a polymer

5-120

are irradiated

K.-H.

discussed

a number

extruding

Ltd, Korea

producing

filter

M. Sippel

Oxygen and nitrogen

A

at 102-1020

M. Friederichs, Hinkel,

a

membrane

Applicunt: LG Chemical

comprises

Publication date: 27 May 1999

Applicant: Praxair

of the oxygen

side to the anode

gas is expanded

rich

the filter onto

with or used in subsequent are provided

gas. The remainder from the cathode

nitrogen

membrane

to the patient.

carrier

of the oxygen

side and exothermically

or connected

Patent number: WO 99125414 Inventors: U. Gobel,

steps. The solid carriers

0

non-

concealed

As

can be seen clearly

by an

captured

solid

conditions

is compatible

subsequent

evaluation.

and

acids from

to

plaster. The

part can be detached pin, and comprises

membrane

section

feedstock

Keskar, J.B. Wulf

of the filter. The

housing.

non-proteinaceous

Oxygen-containing

to the anode side and recovered as an

Inventors: C.F.

flowing

with a pin which can

the insertion

separating

to

Patent number: WO 99125459

The

a cannula

of the adhesive

plaster

an

part is attached

transparent

efficient

plaster.

has liquid

This

but

It has

to

Applicants/Inventors: S. BLkerman et al. (Finland) a simple

is designed

having a separator

section where a portion

is transported

turbine

AG, Germany

adjacent

with oxygen

skin, or to the surface of

plaster is provided

to the adhesive

monitoring

B.

which

transport

and then contacts the cathode side of

the separator

is transported

patients.

a line and

by means

ion

and an oxygen selective

membrane

oxygen product

it. The administering

be inserted

proteinaceous

Nasman,

connected

an object

substances,

K. Akerman,

part and an adhesive

attachment

gas in annulus

and reactor section.

in this patent

part

selective

whereby fuel is introduced

ion transport

of

gases is the subject of

a fuel feed tube

an oxygen

is compressed

Melsungen

liquids

It employs

into

containing

as well as

Filter-based device administers liquids to patients

to administer

extends

for the co-production

product

its closed end and flows concurrently

I? Viinikka

The device described

process

oxygen and nitrogen

membrane,

P Paronen,

Inuentors:

substances

Court,

L7N 3P3, Canada. Tel: +I 905 639

such as pH or ionic

Kontturi,

Applicant: B. Braun

A low energy this patent.

the

are also disclosed.

Svarfvar, A. Urtti,

administering

C. Stone, A.E. Steck

89.

contact: Graham Best,

are

the solid carriers,

S. _&erman,

administering

Publication date: 20 May 1999

of

in

acids.

including

the surface of a patient’s

method

residues,

changes

and the release of drugs or nucleic

through

covers

to

of the

for

Patent number: WO 99124497

invention

attached

responsible

as fuel

J AWWA, 79(7),

Inc, 845 Harrington

Ontario

Models

Formation

USA,

surface

capturing

to

conditions,

The

in

example

Developing

6320, Fax: +I 905 639 1812.

Membrane

Orleans,

The

sensitive

cells and electrolysers.

Non-proteinaceous separated

AWWA New

Publication date: 14 May 1999

of more than one ion-

The ion-exchange

(1997)

at

USA, June

Trihalomethane

and Kinetics.

Burlington,

tri-fluorostyrene grafting

facilitate

electrochemical

are are

K.

et al. (1997)

Predicting

Zenon Environmental

Operating

Patent nztmber: WO 99123487

monomers

naphthalenes

the

for

40-49.

support.

their applications,

from the resulting

substituted

exchange in

carriers which

Test-kits

Ion-exchange

Preferred

and tri-fluorovinyl

are activated

chains.

film.

5. Amy, G.L.

or agents.

Microfiltration

Dallas,

1998.

directors,

or as beads or granules solid

strength.

onto a

Conference,

Tool for

Presented

1997.

environmental

aromatic

polymerised

Dallas,

Integrity

Plants.

For more information,

A. (1997).

J AWWA, 89(10),

binding

of

for NOM

Conference,

as an On-line

AWWA Annual

may

References

February

Application

D. et al. (1998) The Role of Particle Membrane

Potential

Conference,

membranes

officers,

Agencies

et al.

Inc, Canada

covers graft polymeric

its

2. Scanlan

USA

herein

the views of the AWWA

Technology

and ion-exchange

one or more

monomers

Collaborating

a further

Systems

reflect

affiliates,

micro-plates

Power

and views detailed

the

Chicago,

AWWA

Analyzers

Immersed

(AWWA)

Patents Graft polymeric membranes

Count

Foundation,

costs.

(1998)

Microfiltration

USA, June 1998.

Research

1. Gere,

is based

which

Water

comments

not necessarily

is based.

thanks

in

project

title,

American Annual

Research

was discovered.

This feature the

owner

assistance

managing

Disclaimer

this publication

its

administrative

gratefully

AWWA

Environmental

foundation

Inc

et al.

Immersed

4. Mourato,

Systems

that

T.

with

Works Association.)

Acknowledgments

Lebeau,

Conference,

put

torr.

rated x

lo7 cm The

through

a

processes.

Patent number: WO 99125464 Inventors: S. Lee, M. Kim, H. Song Publication date: 27 May 1999

Membrane

Technology

No. 112