Acid Recovery DD Membrane-Acid Recovery DD Membrane-Hangzhou Create Environment & Energy Technology Co

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191 0679 9768

191 5768 9268

Acid Recovery DD Membrane

PRODUCT

Membranes & Components Membrane Module

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Project Cooperation

19106799768
19157689268

【Product Overview】

A high-efficiency separation membrane specifically designed for industrial waste acid treatment, suitable for selective separation of acid from salts and acid from organic matter.

【Product Parameters】

Analysis Item	Unit	Technical Specifications - Anion Exchange Membrane
Ion Exchange Capacity	mmol·g^-1	0.90~1.20
Thickness (wet)	μm	130~160
Water Content (25°C)	wt %	40~60
Permeability Coefficient	10^-7m·sec^-1	≥10
Separation Factor	-	≥25
Applicable Temperature	℃	15~40
Application	-	Acid System / Hydrochloric Acid System / Nitric Acid System / Systems Containing Trace Organic Solvents

【Product Advantages】

Low Operating Costs

Separation process requires no energy input, significantly reducing waste acid treatment expenses.
High Recovery Rate

Achieves high acid recovery and reuse, minimizing fresh acid procurement costs.
Long Service Life Membrane

Resistant to strong acids and oxidation, ensuring extended operational lifespan.
Zero Carbon Emissions

Operates without chemical additives and prevents secondary pollution.

【Water quality conditions】

【Application Fields】

Titanium Dioxide & Steel Industry
In titanium dioxide production, where large amounts of waste sulfuric acid are generated, diffusion dialysis (DD) membranes efficiently recover free sulfuric acid for reuse in the acid digestion process. Simultaneously, ferrous sulfate is concentrated and can be used to produce iron-based products, significantly reducing waste acid treatment costs.For steel pickling waste liquor, the membrane separation process enables acid recovery for reuse in the pickling line, while metal ions are concentrated for reclamation.
Anode Foil & Hydrometallurgy
In aluminum foil anodization, waste phosphoric/sulfuric acid containing Al³⁺ is treated via membrane technology to recover acid and improve electrolyte recycling rates.In hydrometallurgy (e.g., nickel, cobalt, rare earth extraction), waste acid is treated and reused in the leaching process, with metal ions further extracted to minimize resource waste.
Battery & Electronics Plating Industry
Waste acid from lead-acid batteries is processed via membrane separation to recover pure sulfuric acid, while lead-containing sludge is valorized.In the electronics plating industry, mixed acid waste streams are treated, allowing acid reuse in plating lines and enabling concentration and purification of metals like copper and nickel.
Aluminum Profile & Rare Earth Industry
For surface treatment waste acid from aluminum profiles (containing Al³⁺ and F⁻), membrane systems enable acid regeneration, with fluorides treated separately.In rare earth smelting, waste acid is recovered and reused in the extraction stage, reducing fresh acid consumption and minimizing discharges of radioactive wastewater.
Pharmaceutical & Pesticide Manufacturing
In pharmaceutical production (e.g., antibiotic synthesis, API manufacturing), waste organic acids (e.g., oxalic acid, citric acid) are separated and recovered, while organic compounds are retained for treatment.During pesticide production, waste acid containing phosphorus/sulfur is purified and reused, reducing hazardous waste generation.

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