Low Impact Beamhouse and Tanning

>> Established processes and chemicals taking care of the environment

PTT F L P R OT E C

LST F L LO W S U L F I D E T E C

CTT F L C O O L T E C

DWT F L D R Y W A L K T E C

WLT F L W H I T E L I N E T E C

MTT F L M A X I T E C

ETT F L E C O T E C

TFL – Great chemicals. Excellent advice.

The main challenges in processing raw hides

and skins are high contents of sulfide, nitrogen,

salts and chromium and too high COD / BOD

values of the waste water. In addition there are

obnoxious smells, solid waste and fresh water

consumption to deal with.

TFL ECO TEC in Beamhouse

Soaking / Liming –

Low sulfide unhairing:

The TFL low sulfide unhairing provides a clean,

relaxed, well opened-up pelt by using:

,  PELLVIT® LSG or PELLVIT® LSS in soaking to clean

the hair and hair follicles from grease to avoid

hair root retention

,  ERHAVIT® LSU to support the unhairing process

and allowing to reduce the lime and sulfide offer

,  BORRON® DLS to avoid fat smearing drum wall

and pelt

Deliming / bating –

Ammonium-free deliming / bating:

A safe, buffered system which cleans the pelt

remarkably well without having a negative effect

on the integrity of bellies and grain by using:

,  DERMASCAL CD, ammonium free

deliming agent

,  OROPON® ON2, OROPON® W, OROPON® MS,

OROPON® MT, ammonium free bating agents

,  BORRON® SCA bleaches and boosts

scudd removal

Benefits:

,  Sulfide reduction

,  COD / BOD reduction

,  Odour reduction

,  Sludge reduction in case hair is filtered

,  Ammonium and total nitrogen reduction

,  Risk reduction of H2S gas formation

,  Energy reduction in waste water

treatment plant

, Optimised hair and scutt removal

, Lay-out improvement

, Optimal cutting yield

TFL ECO TEC in Tanning

Pickling / Chrome tanning –

Low salt pickling:

A fine grain wet blue with reduced offer of

chromium and common salt can be produced with:

,  SELLATAN® PA Liq as a pickle acid which

allows a more even chromium penetration and

improved chromium exhaustion

Benefits:

,  Sulfate and chloride reduction

,  Chromium reduction

,  Better chrome distribution

,  Finer grain

,  Improved leather quality

TFL ECO TEC – we help you to significantly reduce your water usage

Direct float recycling:

,  Pre-soaking, main-soaking, the washing before deliming and after bating are all done with fresh water

,  The washing float from before deliming is re-used as washing float after liming and this float is re-used

as liming float

,  Pickle and tanning floats are recycled in a closed loop

,  Pre-soaking, main-soaking, liming, deliming and the washing floats after bating are discarded as

waste water

Possible reduction (%) of the ecological impact of a typical wet-blue plant – standard vs. low impact process:

Based on typical waste water values found before treatment.

Full substance wet-blue processed from salted bovine hides of around 30 kg.

Eco challenges in Beamhouse and Tanning>>

PTT F L P R OT E C

LST F L LO W S U L F I D E T E C

CTT F L C O O L T E C

DWT F L D R Y W A L K T E C

WLT F L W H I T E L I N E T E C

MTT F L M A X I T E C

ETT F L E C O T E C

-90 %

-65 %-60 % -60 %

-55 %-50 % -50 %

-30 % -30 %-25 %

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Soak

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Fles

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Del

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Pick

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Cr-

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Fresh water

Water treatment

With TFL ECO TEC – we help you to significantly reduce your pollution>>

www.tfl.com

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