TECHNOLOGY

Our technology enables state-of-the-art UF and NF membrane integrated parameters (acid, solvent, temperature and pressure stability) that are superior to competing polymeric membranes on the market, while still maintaining high performance of flux and rejection.

Highly Stable Ceramic

​Membranes

Novel applications of ceramic MF, UF and NF membranes

High solids tolerance and durability

• High abrasion and fouling resistance of ceramic modules of Al2O3, TiO2, ZrO2

Exceptionally high flux rates and chemical stability

• 46% HF at 95°C
• 20% HCl at 95°C
• 60% HNO3 at 95°C
• 90% H2SO4 at 80°C

Overall stability in acids, bases and solvents

• Chemical, mechanical and thermal stability requires no pre-treatment of process streams

… high thermal, pressure and chemical stability
Thermal stability up to 150°C

• No need for cooling

Pressure stability up to 40 bar

• Higher flux at higher pressures reduce overall system size

Efficient membrane cleaning

• Concentrated chemicals, steam regeneration, disinfection and back flushing​​​

Disk-Tube Reverse Osmosis

​(DTRO)

Industrial Water Treatment for highly concentration solutions 

DTRO membranes have the following benefits:

• High TDS and TSS tolerance
• Very low fouling rate
• High productivity
• Low replacement schedule
• Easy cleaning and maintenance

The system is suited for wide range of applications:

• Pressure up to 160 bar
• Temperature up to 70 °C
• Typically used in TDS more than 150 000 ppm
• Available in UF, NF and RO models

DTRO has a wide range of applications

• Cities treat landfill leachate and recover clean water
• Large textile company recovers dyes from wastewater
• Pharma producer employ DTRO to confine chemical components within production facility
• International laundromat purifies water from waste and detergent
• Thermal power plant uses DTRO for zero liquid discharge​​​

Advanced Ion Exchange

Advanced Ion Exchange (AIX) is a water treatment process commonly used for water softening or de-mineralization, but it also is used to remove other substances from the water in processes such as de-alkalization, de-ionization, and disinfection.

AIX resins have the following benefits:

• Flexible alternative to polymer IX materials
• Enables separations and selectivity unavailable with polymer IX
• Wider pH operating range
• Does not change volume with pH shift
• Allows fully loaded beds
• Improves unit volume throughput​

Industrial Spiral Membranes

Value recovery in concentrated chemical solutions from various industries…

• Acid stable membranes tested in solutions up to:

         20% H2SO4 / 20% HCl / 30% H3PO4 / 15% HNO3

• Base stable membranes for all alkaline conditions:

​         20% NaOH / 20% KOH / 18% LiOH / 12% KCl

• Stability in solvents

         Methanol / Propanol / Ethanol / Acetone / Hexane 
         THF / NMP / DMF / Methylene chloride / Alcohols
Excellent performance in extreme conditions…

• Thermal durability up to 80°C - No need for cooling
• Pressure stability up to 70 bar - Better recovery at high osmotic pressure conditions
• Efficient separation - High recovery of valuable components from process and waste streams

Mining and Minerals processing

• Leach solutions - Metals concentration and reagent recycle
• SX raffinate - Solvent and metals separation for reuse in SX stripping and leach
• Electrolyte - Concentration of bleed streams and metals bath balance
• IX eluate - Separation of reagents prior to crystallization
• Brines - Concentration of lithium brines (LiOH, LiCl) prior to purification
• Waste streams - Recovery of heavy metals and pollutants, cyanide degradation

​Chemicals industry

• Polymers - Concentration of polymer suspensions and metal hydroxide solutions
• Catalysts - Separation of catalysts from mother liquor
• Dyes - Recovery of dyes and pigments
• Desalination - Separation of salts from products
• Solvents - Cleaning and recycling of organic solvents
• Rinsing baths - Recycling and disposal of degreasing and rinsing baths
• Cutting fluids - Treatment of oil/water emulsions
• Glass - Treatment of waste water from glass and glass fibre production

Pharmaceuticals and Biotechnology

• Pharma - Concentration, fractionation, isolation and sterilization of antibiotics, enzymes, proteins, amino acids and vitamins
• Bio processing - Separation, concentration and dewatering of bio mass and algae
• Fats - Separation and disposal of fat emulsions
• Foods - Separation of yeast and active ingredients from major constituents
• Liquors - Desalination of liquors for recycle and reuse

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Environmental

• ​Organics - TOC, COD, BOD reduction
• Emulsions - Oil, water separation
• Contaminants - Recovery of pharmaceuticals and pesticides
• Organisms - Retention of microorganism
• Waste streams - Retention of heavy metals and radioactive substances

Textiles, Paper and Pulp

• Textile waste water - Decolourisation of hot and corrosive waste water from textile finishing
• Liquors - Concentration of preparations and washing liquors
• Pulp waste water - Purification of waste water of paper industry containing bleaching agents
• Washing liquids - Treatment of washing liquids from printing and bleaching processes

Food and Beverage

• Juice - Clarification and concentration of juice
• Beer - Clarification of beer
• Dairy - Sterilisation, desalination, separation and fractionation of milk and whey products
• CIP chemicals - Recovery of CIP cleaning chemicals and water
• Dewatering - Dewatering of products and waste streams

 Applications & Case Studies

Acid-stable Membranes 

One of the leading commercial applications is in metal recovery, concentration and acid separation for mining applications. Improve metal yields from mining processing and waste streams by:

• Concentration of metal in leach streams in order to reduce system size, improve through-put, lower operating - and treatment costs
• Recovery of metals from raffinate (copper, nickel, zinc, cobalt, molybdenum, tungsten, uranium, gold, etc.)
• Recovery of high-value metals from bleed streams and waste ponds & separation of acid from metals prior to neutralisation

Membrane systems can be implemented in acid solutions to recover and purify acids whilst simultaneously concentrating inorganic or organic ions. Typical applications include:

• Purification of acids from metal cations &  spent acidic CIP streams
• Recovery of acids in leaching operations & dissolved chemicals
• Decolourization of mineral acids
• Concentration and recovery of ions in acid streams
• Aggressive cleaning of membranes in standard applications

Base-stable Membranes 

Commercial applications of base-stable membranes include: Pulp and Rayon: cleaning of caustic liquors from hemicellulose and other organic contaminants allow up to 95% reuse of NaOH

• Food, Beverage and Dairy: cleaning of spent caustic production line washing streams (CIP) and IEX regeneration solutions (in sugar decolorization operations) to allow up to 95% reuse of sodium hydroxide
• Chemicals: numerous industrial applications for alkali recovery and end-product concentration in alkaline media production processes

​Typical applications in this media include:

• Recovery of spent alkaline streams (NaOH, KOH)
• Concentration of metals from alkaline streams
• Recovery of spent electrolyte solutions
• Reduction of COD in industrial wastewater prior to neutralisation
• Recovery of bottle and equipment cleaning solutions
• Aggressive cleaning of membranes in standard applications​

Solvent-stable Membranes 

​Solvent stable membranes can be operated in pure solvents or solvent mixtures. Applications include:

• Paint and coatings: purification of spent production line wash streams to allow recovery of valuable solvents and paints
• Pharmaceuticals: concentration and purification of pharmaceutical and intermediate products in solvent media
• Mining: separation and recovery of solvents from SX raffinate and strip streams for reuse

​Typical applications in solvent applications include:

• Recovery of antibiotics and peptides
• Recovery of dissolved chemicals
• Purification of solvents
• Recovery of polymeric binders and pigment separation
• Recovery of dissolved catalysts

• Recycling of hydrocarbons in cleaning processes