Oxidative Beamhouse Processing

New technologies for
Oxidative Depilation
Beamhouse and environment
Hides and skins are enviromental friendly. How much
can we do to reduce Leather productions’ impact?
Beamhouse and environment
Sustainability is the keyword for
the future tannery.
The most important chemical in
Leather process, water, is not an
endless resource.
The most we’ll be able to limit
polution in Leather processing,
the highest possibilities we’ll
have to ensure the future of our
industry.
Beamhouse and environment
Beamhouse process
75% Waste polution charge
83% of BOD5
73% of COD
60% of suspended solids
75% of the salinity
Beamhouse process produce most of the bad smell of
the whole productive cycle!
Oxidative beamhouse – advantages shown in
other papers
Bronco – Castiello et Al - LGR 2008
Oxidative beamhouse
Pale, even colour, total elimination of scuds and natural
pigmentation.
Does not induce metals oxidation on metal free tannages.
More intense and even
dyes.
Compatible with any tannage.
Oxidative beamhouse – personal safety
Sodium sulfide
Hydrogen
peroxide
Sodium hydroxide
Oxidative beamhouse – personal safety
Deliming and pickle processes
does not generate any dangerous
gasses which means a tannery
with less smell, and less personal
and environmental protection
devices needed.
Drastic reduction of dangerous
gas emissions in atmosphere.
Effective cleaner working
environment.
Technical developments
Lab box
pH electrode
Dosing inlet
Water circulation with
heat / cooling
functions
Central control
unit
Technical developments
ECO SMART PPE drum by
Italprogetti engineering
Oxidative beamhouse – process
First soaking
Green fleshing
Main soaking
Oxidative depilation
Fleshing
Splitting
Trimming
Oxidative beamhouse – waste & byproducts
First soaking
Green fleshing
Main soaking
Oxidative depilation
Fleshing
Splitting
Trimming
To ETP treatment
Oxidative beamhouse – waste & byproducts
First soaking
Sulfide free flesh can be
used for Tallow production
Green fleshing
Main soaking
Oxidative depilation
Fleshing
Splitting
Trimming
Degreased flesh can be
used for compost /
fertilizers production
Oxidative beamhouse – waste & byproducts
First soaking
Green fleshing
Main soaking
Oxidative depilation
Fleshing
Splitting
Trimming
Sulfide free float can
be neutralised with
Sulphuric acid or
Phosphoric acid.
Oxidative beamhouse – waste & byproducts
First soaking
Green fleshing
Sulfide free float can be
neutralised with Sulphuric acid or
Phosphoric acid.
Main soaking
Oxidative depilation
Colapsed
proteins can be
Filterpressed.
Float to be
treated in
MBR
Fleshing
Splitting
Trimming
Sulfide free concentrated protein
sludge to be used for compost /
fertilizers
Oxidative beamhouse – waste & byproducts
First soaking
Green fleshing
Main soaking
Oxidative depilation
Fleshing
Splitting
Trimming
Sulfide free concentrated protein
sludge to be used for compost /
fertilizers
Oxidative beamhouse – waste & byproducts
First soaking
Green fleshing
Main soaking
Oxidative depilation
Fleshing
Splitting
Trimming
Sulfide free splits and trimmings
can be used safely for industrial
gelatine production.
Oxidative beamhouse – waste & byproducts
Biodermol – Ars Tinctoria cooperation
Oxidative beamhouse – Auxiliaries
Beamhouse auxiliaries must be chosen in view of the
process synergy. Many auxiliaries may just consume
H2O2 without giving substantial results, or may react with
it generating dangerous substances.
ARS TINCTORIA and BIODERMOL developed products
with specific functionalities in soaking and liming
processes, each chosen from the biochemical point of
view and aiming to the effective removal of unwanted
substances without affecting collagen and in view of water
recyclability.
Oxidative beamhouse – new developments
- BIODERMOL BTM-OS – Ecologically friendly non-ADR
antibacterial.
- LIPOL DSX – Soaking non degreasing tenside .
- BIODERMOL SPHX – pH regulator which controlling
swelling / wrinkles..
- RINVERDENTE DOX – Improves Hyaluronic acid and
veins remotion.
- LIPOL DF – Specific non proteolitic enzyme.
Oxidative beamhouse – Histological analysis
Oxidative beamhouse – Histological analysis
Conclusions