Mixed acid regeneration plants

From waste to profit

ANDRITZ Metals knows the requirements for continuous, stable, and successful operation of stainless steel pickling lines. PYROMARS is the only mixed acid regeneration system that can handle all typical waste acids from stainless steel pickling processes, and it is also easy to operate. Hence, it is second to none as the most advanced and most proven technology worldwide. ANDRITZ Metals’ newly  developed ZEMAP technology transforms stainless steel mixed acid pickling into a zero-effluent process.

  • PYROMARS - PYROlytical Mixed Acid Recovery System
  • ZEMAP - Zero-Effluent Mixed Acid Pickling system

Pyromars video


PYROMARS "Mixed acid regeneration plants"

ZEMAP video


ZEMAP (Zero Effluent Mixed Acid Pickling) process: rinse water treatment.

Pyromars video


ANDRITZ video about "Acid regeneration plants"

ZEMAP video


ZEMAP (Zero Effluent Mixed Acid Pickling) process: rinse water treatment.

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The advantages are numerous

Your benefits

No expenses for neutralization of spent pickling acid

No expenses for disposal of neutralization slury
Recovery of nitrates either as acid or reduced to nitrogen
Reuse of metal oxides in stainless steel melting
Metals recovery from waste acid up to 99%
Reduction of fresh acid demand to 20-25%
Return on investment approx. 2-3 years

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Automation solutions for the metals industry

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Service solutions for the metals industry

We support you throughout the entire plant life cycle

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regeneration systems for stainless steel
Eibesbrunnergasse 20
1120 Vienna
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  • PYROMARS mixed acid regeneration

    ANDRITZ PYROMARS from waste to profit

    PDF : 1.3 MB