Removing cells from fermentation broth

Removing cells from fermentation broth

Membrane filtration Applicant: Millipore Membrane which Corp. filtration apparatus is formed elements feed from and monolayer molded togeth...

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Membrane

filtration

Applicant: Millipore Membrane which

Corp.

filtration

apparatus

is formed

elements feed

from

and monolayer

molded

together.

port,

elements

The device

a filtrate

port

recentate

port. The sealing elements

molding

and,

with

optionally,

configuration

and the seal provided

step effect

that causes a feed liquid

a

disclosed.

a

microorganism

of the

Escherichia cells.

to be filtered

to form a

cells

broth

using

are

obtained

belonging through

filtered

patent

membranes

is

liquid

by culturing

a

for

from

the

a membrane

broth

through

a

to

Polyethyleneimine

fermentation

a seal configuration

genus

to separate

is

added

to

to form a mixture,

the membrane

to separate

and gaseous

the

the retentate

the

cause a negative is said

the

module

a retentate.

method

the

membrane

retentate.

Patent number: US 5824217

rate.

Inventors: S.

R.

Pearl,

W.

S. Merrill,

C.

J.

Petersen Date: 20 October

1998

improves

permeation

pressure

partial

of the

clement

flow

in order

ro the

be used

air taken

element

Ir

into

side can

control

are flow of

membrane.

integrated

of flush

This

mechanical

a

filters

Membranes

with

fed via the permeate

the

to

from

the

has a purely

effect.

Patent number: US 5814513

Patent number: WO 9846333

Date 29 September

1998

Date: 22 October

Inventors: T. Tanabe,

T. Nakamura

Inventors: Kneifel,

granted that

and can also be used

media.

on the retentate

reduce

been

process

a housing

a control

this polyethyleneimine

the feed or

have

media,

gaseous inside

that

that is not mixed with either

GKSS

a membrane

drying

arranged

and then

Germany

at

for

cells. It is claimed

filtrate

liquids and drying gases

Researchers

removing

Cells

by the

Co., Inc.

for

fermentation

that are insert

Filtering

Applicant: GKSS,

method

A

presealed

is provided

cells from fermentation

Applicant: Ajinomoto

is disclosed

multilayer

presealed insert

Removing broth

apparatus

1998

M.

Plonski,

K. Ohlrogge,

R.

Waldemann,

K.

J. Koll, C. Hasler,

H-H.

Klickow

Anti-telescoping

device

Pervaporation fluids

Applicant: I? J. Tortosa Longitudinal

extension

destruction

of

and

spirally an

the

modules

within

prevented

by a pair of end-cap

devices (ATD’s) and a central ATD

is an integral

circular

and

that is concentrically with tubular

ATD.

disposed

ends protruding

wound

membranes

is prevented

the

ends of the permeate

Patent Number

the

in

Date 6 October

the

1998

gas separation

Applicant: Nitto Researchers

Denko

uniform

over

permeability membrane resin

dielectric an organic bonding

constant solvent

polyimide

resin

does

polyimide original

not

formed.

that

dissolve but

organic gas The

membrane example,

step

is formed a nonwoven

Date: 6 October

63

1998

water but impermeable

is

electrolyzing halogen

achieved the

to the hydraulic

a

A submerged

using

for

the

E

membrane

cysts

involves

the

compounds system

solvent

and

with

the

result,

an

solution

located

adjacent

transport

field

is

polyimide a 40nm

like layer of 30 pm. The of,

for

also controls a coagulant

submerged

membrane

permeate

the retentate

body of water

is mixed

viruses, impurities.

to facilitate

the

and alkali

the cathode.

The

electronically

a porosity pore

of at least

size of at least

to provide has a pore

R. Mussel1

1998

arsenic The

a floe. The size in the a pure water the floe. The membrane

A system for pure oxygen Applicant. Praxair This process stream

relates

for separating to produce

It achieves

Inc.

to

an

oxygen

oxygen

apparatus

and

from a mixed

gas

of a desired

this by using a membrane

solid electrolyte Conversely,

M. Singh, V.

Technology

invention

to

produce

separating oxygen

of

it is claimed

oxygen a

product. made of a

ions from air

selected

this could

oxygen from an air stream to produce free “nitrogen”

1998

is

field

turbidity,

color,

Patent number. WO 9846533 Inventors: A. Benedek, H. Husain, R. Mitchell

having

Date: 15 October

to minimize

a flow

an

a mean

Inventors: R. Varjian,

remove

fouling

Date: 22 October K. Ikeda

material

is revealed

containing

from

at

metal

The process

to the cathode

away

to

to 1 pm to provide

alkali

10 microns.

pH in the range of 5 to 8

adds

Frenkel,

cloth.

insoluble

is reduced

Patent number: WO 9845503

Inc.

oocysts,

then

compartment.

the oxygen

comprises and

and

ions and water through

to the cathode

hydroxide

alkali

to produce

ions;

by having

of oxygen

water

matter,

brine

is produced.

characterized

the

compartment,

a concentrated

system of

and

and

range of 0.02

water

and

further

flow

Environmental,

purification organic

membrane

M. Maeda;

Applicant, Zenon

natural

a support

H. Beitler,

feeding

gas is fed to the cathode

so that

cathode

hydroxide

1998

Process for purifying

has a

bacteria,

a skin layer with

W. Jehle,

the

into the cathode

an oxygen-rich

metal

the

is miscible As

Inventors: C. R. Mayer,

the

separating

metal

the alkali metal

compartment

gas

in

thereby

the alkali halide

the membrane Then

membrane

to the anode alkali

of an

the

involves

brine

gas and

passing

cell consists

with

method

is disclosed

of an alkali metal

The electrolytic cathode

halide

30 percent

Patent number: US 5817165 Inventors: H. Hachisuka,

and/or

The

fluid

from

to

with the cathode

two.

contained

is

permeable

contact metal

separated

This

a membrane

and

conductive

the fluorine-containing

on

fluid.

using

form

in another

separation

and a sponge

water

are

brine.

anode

if

ensures

assembly

halide

and,

subsequent

Co.

electrode

that is used for the electrolysis

The

a dipole

may

fluorine-containing

resin layer comprises thickness

that

Alternatively, unit

solvent.

and/or fluid

hydraulic

the

Pervaporation

dissolved

hydraulic

which

hydraulic

in

is

various

water

Applicant: Dow Chemical

high

has at least one ether

is dipped

of

the

steam.

Date: 29 October

a polyimide

solvent

desolvation

resin,

asymmetric

has

factors.

of 30 or less and

in the molecular

wear and tear by

fluid are hygroscopic, of

it

true if the system

of alkali metal halide

A membrane

Piipel

separation

and

by dissolving

of 3.0 D or less.

The

that

area,

an organic

a

is pinhole-free,

separation

is formed

membrane.

gas

say

a large and

in either

moment

they

gases the

system

In addition,

substantially,

a

fluid.

have developed

polyimide

which

a hydraulic

absorption

of

using reported

Patent number: WO 9848175

Denko

fluorine-containing membrane

membrane

Corp.

at Nitto

the

temperature

that

US 5817235

Inventor: I? J. Tortosa

Polyimide

in

fluids

by causing

types of hydraulic

formation

tubes.

enters

This is especially

raised

for engaging

air

dehydrating

The workers

hydrodynamically.

results

by lugs that are

on each side of the plate

of hydraulic

the system

driven

to the

technique.

when

impairs

spirally

relates

degassing

cavitation.

interconnector

of

and/or that

The central

on each side of the

extension

development

pervaporation

at its hub section

Longitudinal

the proximal

is

of a perforated

a solid

plate. arranged

unit

anti-telescoping

assembly

steel plate

This

membrane

ultrafiltration

Electrolysis brines

Applicant. Daimler-Benz

consequent

wound

for drying hydraulic

purity.

be used for an oxygen-

product.

Patent number: El’875283 Inventors: I? Ravi, C. F. Gottzmann Date: 4 November

1998

Membrane Technology No. 103