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IN TANNING INDUSTRY

   

Use of approved biocides

Beamhouse, Post tanning, Tanyard

Biocides are subject to special regulation (i.e. Biocide...

Recycling and reuse of chromium solutions

Beamhouse, Tanyard

Exhausted tanning floats are reused at either the pickling or...

Green fleshing

Beamhouse

The fleshing process is applied at an earlier stage of...

Reducing sulphide consumption (low-sulphide unhairing)

Beamhouse

The amount of inorganic sulphide used in unhairing is reduced by...

Eliminating pesticides from the raw material (hides/skins)

Management

Selection of materials free from persistent pesticides which are...

Substitution of halogenated organic compounds in flameretardants

Post tanning

Use of flame-retardants which do not contain halogenated organic...

Optimised retanning

Post tanning

Optimisation of process parameters to ensure the maximum uptake...

Optimised dyeing

Post tanning

Optimisation of process parameters to ensure the maximum uptake...

Optimised fatliquoring

Post tanning

Optimisation of process parameters to ensure the maximum uptake...

Pretanning with non-chrome tanning agents

Tanyard

Pretanning changes the physical and chemical characteristics of...

Pretanning using aldehydes, producing chromium-free leather

Tanyard

Pretanning with aldehydes, followed by more intensive...

Process changes to reduce metal discharges

Tanyard

Use of high-exhaustion tanning, or ageing of chrome-tanned...

Chromium recovery through precipitation and separation

Tanyard

Separation of chromium salts from the aqueous effluent stream by...

 

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