Oxipur

Aluminum Anodizing Wastewater Treatment

Waste water Treatment for anodizing aluminum and metal pickling

Oxipur units are based on a valid technology process with acid retarded resins, firstly for the anodizing of aluminum and the pickling of metals. It is possible to maintain a low level of aluminum in the water, thanks to removal of aluminum salts dissolved.

Plants with acid retardation resins, for the treatment and reuse of Anodic Oxidation or Acid Pickling bathes by the removal of aluminum salts dissolved.

OXIPUR for Aluminum Anodizing

Application:

Anodizing bathes containing:

H2SO4 ≥ 200 g/l
Al 12-15 g/l

An OXIPUR unit is a small, device that connects directly to an anodising tank, continuously removing Aluminum as it dissolved.
The heart of the OXIPUR unit, the resin column has the ability to absorb Sulfuric Acid while rejecting a solution of weakly acidic to waste. The acid can readily be recovered from the resin with a simple water wash.
OXIPUR unit has the flexibility to be connected to one tank or several tanks.

The efficiency of the OXIPUR acid recovery system is up to 98%

Benefits:

Most efficient process available
Maintain low Al concentration
Improve finish quality
Reduce electrical consumption
Recovery up to 98% of H2SO4
Saves lime for depuration
Dramatic reduction of depuration sludges
Avoid any shutdown of the line

OXIPUR for Aluminum Anodizing is propaedeutic to ZLD (Zero Liquid Discharge) technology

OXIPUR for Metal Pickling

Application: Stainless Steel Pickling Bathes containing:

H₂SO₄ ≥ 120 g/l
HF^– ≥ 40 g/l
Fe²⁺/Fe³⁺ 50 g/l

An OXIPUR unit is a small, device that connects directly to an anodising tank, continuously removing Fe²⁺/Fe³⁺ as it dissolved.
The heart of the OXIPUR unit, the resin column has the ability to absorb Sulfuric Acid while rejecting a solution of weakly acidic to waste. The acid can readily be recovered from the resin with a simple water wash.
OXIPUR unit has the flexibility to be connected to one tank or several tanks.
The efficiency of the OXIPUR acid recovery system is up to 98%

Benefits:
- Most efficient process available
- Maintain low Al concentration
- Improve finish quality
- Reduce electrical consumption
- Recovery up to 98% of H2SO4
- Saves lime for depuration
- Dramatic reduction of depuration sludges
- Avoid any shutdown of the line
OXIPUR for Metal pickling is propaedeutic to ZLD (Zero Liquid Discharge) technology