REVERSE OSMOSIS CHEMICALS

IWE AC2 Calcium Sulphate Antiscalant

IWE AC2 has been developed as an antiscalant for use in Reverse Osmosis and Nano-Filtration systems operating with feed-waters containing high levels of Calcium sulphate. IWE AC2 is also effective against Calcium carbonate and other commonly found scaling species. The strong threshold properties shown by IWE AC2 against Calcium sulphate and Calcium carbonate enable membrane systems to be operated at their optimum recovery rate. This reduces the amount of feed water needed and the volume of concentrate requiring disposal. Consequently, significant savings can be made with both capital and operational costs. 

Application

IWE AC2 should be dosed continuously to the feed water upstream of the cartridge filter. Typical dosage rates are 3-5mg/l. Under NSF listing the IWE AC2 dose rate in the feed water should be less than 5mg/l in potable water systems. IWE AC2 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE AC2 is a non-hazardous, synergistic blend of phosphonates and carboxylic acids and is fully compatible with carbon steel and commonly used materials of construction. Observe all safety precautions shown in the material safety data sheet, available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is 2 years under normal storage conditions.

Typical properties

Appearance: pale clear liquid

pH as supplied: 8.3 – 8.7

Specific gravity: 1.31 – 1.33

Freezing point: -5ºC

• Suitable for Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Compatible with all polyamide membranes
• Replaces acid addition
• Allows high recovery rates
• Simple test method
• Inhibits common scales

– Barium/Strontium sulphate
– Calcium carbonate/sulphate
– Iron/Manganese
– Silica

• NSF listed

IWE AC3 Broad Spectrum Antiscalant and Antifoulant

IWE AC3 is a general purpose liquid antiscalant & antifoulant for use in Reverse Osmosis and Nano-filtration systems. This concentrated phosphonate product is effective against a wide range of inorganic scaling species and also sequesters trivalent metal cations such as iron, manganese and aluminium thus reducing the frequency of membrane replacement and cleaning.

IWE AC3 has proven to be effective at a Langelier Saturation Index (LSI) of +2.6 which means that systems can be designed and operated at their optimum recovery rates.

By reducing the amount of feed water used and concentrate to be discharged, significant savings can be made to both capital and operational costs.

Application

IWE AC3 should be dosed continuously to the feed water upstream of the cartridge filters. Typical dosage rates are 2 – 4 mg/L.

IWE AC3 may also be used in sea water applications where iron is present, recycle of brine is in use or there is no feed water pH reduction by acid dosing.

Typical dose rates are 0.5 – 1.0 mg/L

Under NSF listing the IWE AC3 dose rate in the feed water should be less than 5 mg/L in potable water systems.

IWE AC3 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE AC3 is an aqueous solution of neutralised phosphonic acid. It has been approved for use in potable water applications and does not contribute to assimilable organic carbon (AOC), which can act as source of nutrient for micro-organisms. IWE AC3 is compatible with carbon steel and other commonly used materials of construction. Observe all safety precautions shown in the material safety data sheet, available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The ‘shelf life’ is 2 years under normal storage conditions.

Typical properties

Appearance: straw coloured liquid

pH as supplied: 9.8 – 10.2

Specific gravity: 1.34 – 1.37

Freezing point: < -15°C

• Suitable for Reverse Osmosis (RO) and Nano- Filtration (NF) membranes

• Effective at LSI up to +2.6

• Excellent inhibitor for iron fouling

• Excellent silica antiscalant

• NSF listed product

• Approved for use in drinking water applications (UKDWI)

• Compatible with all types of polyamide membrane

• Replaces acid addition

• Inhibits common scales

– Calcium carbonate/sulphate

– Calcium phosphate

– Barium/Strontium sulphate

– Silica

– Iron/Manganese

IWE AC4 Broad Spectrum Antiscalant

IWE AC4 has been developed as a broad spectrum antiscalant for use in brackish water Reverse Osmosis and NanoFiltration systems. It is highly effective at preventing the formation of inorganic scale thereby reducing the frequency of membrane cleaning and replacement. IWE AC4 allows systems to be designed and operated at their optimum recovery rates, reducing the amount of feed water used and concentrate to be discharged. Consequently significant savings can be made with both capital and operational costs.

Application

IWE AC4 should be dosed continuously to the feed water upstream of the cartridge filters. Typical dosage rates are 4-8 mg/l. IWE AC4 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE AC4 is an aqueous solution of neutralised phosphonic acid that has been classified as safe to use in potable water applications. IWE AC4 is compatible with carbon steel and all commonly used materials of construction. A material safety data sheet is available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

IWE AC4 shelf life is two years under normal conditions of storage

Typical properties

Appearance: pale coloured liquid

pH as supplied: 9.7 – 10.3

Specific gravity: 1.13 – 1.15

Freezing point: <-2ºC

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes 9
• Excellent iron fouling inhibitor
• Compatible with all polyamide membranes
• Allows high recovery rates
• Drinking water approval
• Negligible impact on AOC levels
• Replaces acid addition
• Inhibits common scales

Calcium carbonate/sulphate

Barium/strontium sulphate

Silica

Calcium phosphate

Iron & manganese

IWE AC5 Calcium Phosphate Antiscalant

IWE AC5 has been developed specifically to prevent calcium phosphate and calcium carbonate scaling in Reverse Osmosis and NanoFiltration systems. IWE AC5 permits system operation at higher pH and recovery than other antiscalants; thus reducing the amount of feed water, reject water disposal and acid for pH control needed, resulting in significant capital and operational cost savings.

Application

IWE AC5 should be dosed continuously to the feed water upstream of the cartridge filter. The dose rate of IWE AC5 is dependent on the calcium and phosphate content of the concentrate stream, as well as pH, temperature and ionic strength. We will be pleased to provide advice on the most suitable dose rate for a particular water analysis and set of operating conditions. IWE AC5 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE AC5 is a non-hazardous, synergistic blend of phosphonates and carboxylic acids, compatible with carbon steel and other commonly used materials of construction. A material safety data sheet is available on request.

Classification

CHIP: Not Classified | UN: Non Hazardous

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The ‘shelf life’ is two years under normal storage conditions.

Typical properties

Appearance: pale clear liquid

pH as supplied: 6.0 – 6.4

Specific gravity: 1.14 – 1.16

• Suitable for Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Replaces acid addition
• Compatible with all types of polyamide membranes
• Allows high recovery rates
• Simple Test Method
• Inhibits common scales

– Calcium carbonate/sulphate
– Barium/Strontium sulphate
– Calcium phosphate
– Silica

IWE AC6 Antiscalant for Recycle Systems

IWE AC6 has been developed as a broad spectrum antiscalant and antifoulant for use in small and recycling Reverse Osmosis and Nano-Filtration systems with less than 100 m3 /day of feed water flow. IWE AC6 is effective at preventing all inorganic scale formation thus reducing the frequency of membrane cleaning and replacement. IWE AC6 allows systems to be designed and operated at higher recovery rates. By reducing the amount of feed water needed and concentrate for disposal, capital and operational cost savings can be made.

Application

IWE AC6 should be dosed continuously to the feed water upstream of the cartridge filter. Typical dosage rates are 7 – 15mg/l. IWE AC6 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE AC6 is a synergistic blend of neutralised carboxylic and phosphonic acids whose active components have been classified as non-toxic and are widely used in drinking water applications. IWE AC6 is compatible with carbon steel and all commonly used materials of construction. Observe all safety precautions shown in the material safety data sheet, available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is 2 years under normal conditions of storage

Typical properties

Appearance: pale liquid

pH as supplied: 10.7 – 11.3

Specific gravity: 1.08 – 1.12

Freezing point: < -0°C

• Suitable for Reverse Osmosis (RO) and Nano-Filtration (NF) membranes
• Compatible with all types of polyamide membranes
• Allows high recovery rates
• Replaces acid addition
• Simple test method
• Inhibits common scales

– Calcium carbonate/sulphate
– Barium/Strontium sulphate
– Calcium phosphate
– Magnesium hydroxide
– Iron/Manganese

IWE CC2 is a broad spectrum biocide for use in cleaning Reverse Osmosis and Nano-Filtration systems. It can be used both on and off-line to eliminate microbiological fouling but when used in potable water applications, IWE CC2 should be used ‘off-line’. IWE CC2 can be used in pre-treatment systems for the prevention of biofouling in pumps, tanks and pipe-work. It is deactivated to harmless by-products by using sodium bisulphite.

Application

When cleaning fouled membranes ‘off-line’, IWE CC2 should be dosed at 1,000 -1,500mg/l for 6-8 hours. When used ‘on-line’ IWE CC2 should be dosed at 700-1,000mg/l for 8-12 hours once every 5 to 21 days depending on the severity of the fouling. IWE CC2 has good biostatic properties and can be used for membrane preservation and storage as per the guidelines below:

24-36 hours 300mg/l = 0.03%

36-168 hours 500mg/l = 0.05%

1-4 weeks 800mg/l = 0.08%

1-6 months 1000mg/l = 0.1%

6 months drain & refill every 6 months

Genesol 32 can be diluted and is fully miscible with water in all proportions

Health and Safety

IWE CC2 is an aqueous solution containing mixed isothiazolinones. It is corrosive to carbon steel and certain other alloys so all pumps, pipe-work and tanks should be made from acid resistant material. A material safety data sheet is available on request.

Classification

CHIP: Corrosive | UN: Corrosive

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is 12 months under normal storage conditions.

Typical properties

Appearance: colourless/yellow liquid
pH as supplied: 3.0 – 5.0
Specific gravity: 1.04 – 1.09
Freezing point: < – 1°C

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Effective against most micro-organisms
• Long lasting
• Compatible with all polyamide membranes
• Easily deactivated to harmless by-products
• Can be used to clean pre-treatment systems
• Can be used for membrane preservation and storage

IWE CC3 is a blended chelating agent and non-ionic surfactant and has been developed as an alkaline general purpose cleaner for membrane systems. IWE CC3 will help to remove both organic and inorganic based deposits. IWE CC3 is classified as ‘readily biodegradable’ and is an excellent adjunct when used in combination with other IWE membrane cleaners.

Application

IWE CC3 should be used as a 3% solution at the highest pH recommended by the membrane manufacturer and should be alternately soaked and recycled through the membrane system for at least 3-4 hours. Working with enhanced temperature is strongly recommended to improve the cleaning performance. Cleaning solutions using IWE CC3 have a tendency to foam. After cleaning, the membrane system should be thoroughly flushed out, until the pH values of the feed and the discharge sides of the membrane are the same. IWE CC3 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE CC3 is an aqueous solution containing iminodisuccinic acid and a non-ionic surfactant. It is compatible with carbon steel and commonly used materials of construction. Observe all safety precautions shown in the material safety data sheet, available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is two years under normal storage conditions.

Typical properties

Appearance: colourless to pale liquid

pH as supplied: 11.0 – 11.5

Specific gravity: 1.33 – 1.35

Freezing point: – 0°C

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Effective against both organic and inorganic deposits
• Effective against calcium sulphate
• Compatible with all polyamide membranes
• Can be used in combination with other Genesol cleaners
• Classified as ‘readily biodegradable’

IWE CC4 is a general purpose cleaner for the removal of organic foulants found on Reverse Osmosis and Nanofiltration membrane surfaces. The low dose rate of IWE CC4 ensures cost effective use and it is an excellent adjunct when used in combination with other IWE membrane cleaners.

Application

IWE CC4 should be used as a 1-2% solution at the highest pH recommended by the membrane manufacturer and should be alternately soaked and recycled through the membrane  system for at least 3-4 hours. Working with enhanced temperature will also improve the cleaning performance. Cleaning solutions using IWE CC4 have a tendency to foam. After  cleaning, the membrane system should be thoroughly flushed out, until the pH values of the feed and the discharge are the same and all residual traces of IWE CC4 have been removed. IWE CC4 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE CC4 is an anionic surfactant based on the sodium salt of an alkyl benzene sulphonic acid. It is compatible with carbon steel and commonly used materials of construction. A material safety data sheet is available on request.

Classification

CHIP: Harmful | UN: Non Hazardous

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is two years under normal storage conditions.

Typical properties

Appearance: pale yellow liquid

pH as supplied: 7.0 – 9.0

Specific gravity: 1.01 – 1.05

Freezing point: < -5°C

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Effective against organic deposits
• Compatible with all polyamide membranes
• Approved for use in potable water applications
• Liquid product, easy to use
• Can be used in combination with other Genesol cleaners
• Cost effective low dose treatment

IWE CC5 has been developed as a general-purpose cleaner for inorganic scale and iron deposits found in most types of membrane system. It is also highly effective at removing organic deposits from severely fouled systems.

Application

IWE CC5 is effective when used as a 1-2% solution and alternately soaked and recycled through the membrane system for 1-2 hours. Cleaning solution pH should be the minimum recommended by the membrane manufacturer. If the pH starts to rise during the cleaning process additional IWE CC5 should be added or the cleaning solution replaced. After cleaning, IWE CC5 cleaning solutions should be slowly neutralised to pH 6-7 using an alkaline solution before discharge, as the presence of acid solutions can be damaging to concrete and cement lined discharge pipes. Before returning the plant to service, the membrane system should be thoroughly flushed, until the pH of the feed and the concentrate are similar. The product water conductivity may initially be high but will return to normal after a few hours of operation. IWE CC5 is fully miscible with water in all proportions.

Health and Safety

IWE CC5 is a mixture of nitric and phosphoric acids and care should be taken during handling. Solutions of IWE CC5 are corrosive to carbon steel and many other metals and materials of construction, so all chemical tanks, pumps and pipe-work must be made from acid-resistant materials. Observe all safety precautions shown in the material safety data sheet, available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is two years under normal storage conditions.

Typical properties

Appearance: pale liquid

pH as supplied: <1

Specific gravity: 1.30 – 1.34

Freezing point: – 5°C

• Compatible with Reverse Osmosis (RO) and Nanofiltration (NF) membranes
• Effective against inorganic scale and iron deposits
• Effective against proteinous deposits
• Wide application of use including the food process industry
• Liquid product, easy to use
• Low dose rate ensures cost effective treatment

IWE CC6 has been developed as an inorganic scale cleaner and iron deposit remover for use in Reverse Osmosis and Nano-filtration membrane systems. Used at the right concentration, its self adjusting pH ensures highest solubility of iron salts is achieved. IWE CC6 has been approved for use in drinking water applications. 

Application

IWE CC6 is highly effective when used as a 3 4% solution and alternately soaked and recycled through the membrane system for 1-2 hours. When using IWE CC6, the cleaning solution pH will stabilise at pH 3.7. If the pH increases above pH 4.2 during the cleaning process, the solution should be discarded and replaced with a fresh solution. It is recommended that the membranes be cleaned at 25-30ºC. Membrane manufacturers guidelines should be followed at all times. After cleaning, IWE CC6 cleaning solutions should be neutralised to pH 6-8 with an alkaline solution before discharge, as the presence of low pH solutions can be damaging to concrete and cement lined discharge pipes. Before returning the plant to service, the membrane system should be thoroughly flushed, until the pH values of the feed and the discharge ends of the system are the same. The product water conductivity may initially be high but will revert to normal after a few hours operation. IWE CC6 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE CC6 is an aqueous solution of stabilised ammoniated citric acid combined with a non-ionic biodispersant that is classified as non-toxic. It is corrosive to carbon steel therefore all chemical tanks, pumps and pipework must be made from acid-resistant materials. Observe all safety precautions shown in the material safety data sheet, available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

Shelf life is 2 years under normal storage conditions. Protect from frost.

Typical properties

Appearance: colourless liquid

pH as supplied: 3.5 – 4.0

Specific gravity: 1.17 – 1.20

Freezing point: – 0°C

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Effective against inorganic deposits
• Preferred product for removing iron deposits
• Self adjusting pH ensures optimum solubility of iron salts
• Approved for use in drinking water applications (UKDWI)
• Compatible with both polyamide and cellulose acetate membranes
• Effective against aluminium based foulants
• NSF listed

IWE CC7 has been developed as a general-purpose membrane cleaner effective against organic based foulants typically found in Reverse Osmosis and Nano-filtration membrane systems. IWE CC7 has been approved for use in drinking water applications. 

Application

IWE CC7 is highly effective when used as a 2-3% solution at the highest pH recommended by the membrane manufacturer. The cleaning solution should be alternately soaked and recycled through the membrane system for at least 4-6 hours. Working with enhanced temperature will also improve the cleaning performance. After cleaning, the membrane system should be thoroughly flushed out, until the pH of the feed and the discharge ends of the system are the same. Cleaning solutions using IWE CC7 have a tendency to foam. IWE CC7 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE CC7 is an aqueous blend of mixed cleaners, including a surfactant, fully biodegradable sequestrant and inorganic phosphate. It is compatible with carbon steel and commonly used materials of construction. A material safety data sheet is available on request.

Classification

CHIP: Corrosive | UN: Corrosive

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is 2 years under normal storage conditions. IWE CC7 should be stored at >10ºC, as precipitation may occur at lower temperatures.

Typical properties

Appearance: pale yellow liquid

pH as supplied: 13.0

Specific gravity: 1.12 – 1.24

Freezing point: < – 0°C

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Effective against a widerange of organic foulants
• Drinking water approval
• Liquid product, easy to use
• Efficacy against clay and colloidal silica fouling

IWE CC8 is based on a chelating agent and has been developed as a general purpose membrane alkaline cleaner for use with Reverse Osmosis and Nanofiltration membranes. IWE CC8 will remove organic and inorganic based deposits. It is effective against iron fouling and many forms of calcium scale and is an excellent adjunct when used in combination with other IWE membrane cleaners.

Application

IWE CC8 is highly effective when used as a 2-3% solution at the highest pH recommended by the membrane manufacturer and should be alternately soaked and recycled through the membrane system for at least 3-4 hours. Working with enhanced temperature will also improve the cleaning performance. After cleaning, the membrane system should be thoroughly flushed out, until the pH values of the feed and the discharge are the same. IWE CC8 can be diluted and is fully miscible with water in all proportions

Health and Safety

IWE CC8 is a formulation containing ethylene diamine tetracetic acid. It is compatible with carbon steel and commonly used materials of construction. Observe all safety precautions shown in the material safety data sheet, available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is two years under normal storage conditions.

Typical properties

Appearance: pale yellow liquid

pH as supplied: 13.0

Specific gravity: 1.29 – 1.31

Freezing point: -0°C

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Effective against a wide range of organic foulants
• Effective against iron fouling and inorganic based deposits
• Used in a wide range of applications
• Compatible with all polyamide membranes
• Can be used in combination with other Genesol cleaners
• Liquid product, easy to use

IWE CC9 is a neutral pH cleaner ideally suited for the removal of organic & inorganic foulants from Reverse Osmosis and Nano- filtration membrane surfaces, particularly where the use of low & high pH cleaners may be limited due to Health and Safety or effluent disposal restrictions. The neutral pH of this product makes it particularly useful for cleaning cellulose acetate membranes. 

Application

IWE CC9 should be used as a 1-2% solution v/v of CIP solution and should be alternately soaked and recycled through the membrane system for 3-4 hours. Working with enhanced temperature will also improve the cleaning performance. For heavily fouled systems the cleaning period can be extended, including overnight soaking. After cleaning, the membrane system should be thoroughly flushed with permeate until the pH values of the feed and the discharge are the same. IWE CC9 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE CC9 is a blend of organic acids & chelants with inhibitors to protect metal surfaces during cleaning. It is compatible with carbon steel and commonly used materials of construction. Observe all safety precautions shown in the material safety data sheet, available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The ‘shelf life’ is 2 years under normal storage conditions.

Typical properties

Appearance: pale liquid

pH as supplied: 7.0 – 7.8

Specific gravity: 1.09 – 1.12

Freezing point: < -3°C

• Gentle neutral pH cleaner less aggressive to membrane surfaces
• Compatible with cellulose acetate and polyamide membranes
• Effective against organic deposits including biofilm
• Removes iron and calcium based deposits
• Removes clay and colloidal compounds
• No neutralization required
• Cost effective low dose treatment

IWE CC10 has been developed as an inorganic scale cleaner and iron solvent for Reverse Osmosis and Nano-filtration membrane systems. IWE CC10 is highly effective at removing inorganic foulants, such as iron and calcium carbonate and also has proven efficacy against removing membrane biofilms. 

Application

IWE CC10 should be used as a 1-2% solution, alternately soaked and recycled through the membrane system for 1-2 hours. When using IWE CC101, the cleaning solution pH will stabilise at pH 2.5 – 3.5. If the pH increases above this value during the cleaning process, the solution should be discarded and replaced. It is recommended that the membranes be cleaned at least 5°C above ambient temperature. The membrane manufacturer’s guidelines should be followed with respect to pH and temperature. Before returning the plant to service, the membrane system should be thoroughly flushed, until the pH values of the feed and the discharge are the same. Following cleaning, the product water conductivity may initially be high but should revert to normal after a few hours operation. IWE CC10 is readily dissolved in water: cleaning solutions should be used immediately after preparation. Cleaning solutions of IWE CC10 will have a tendency to foam. IWE CC10 contains bubble generating technology to gently agitate and lift membrane foulants away from the surface increasing cleaning efficiency.

Health and Safety

IWE CC10 is a mixed blend of acid chelants and is classified as non-toxic. Low pH solutions are corrosive to carbon steel and concrete so all chemical tanks, pumps and pipe-work should be made from acid resistant materials. A material safety data sheet is available on request

Classification

CHIP: Irritant | UN: Corrosive

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

Shelf life of IWE CC10 is 1-2 years under normal storage conditions. Ensure the packaging remains sealed and the IWE CC10 remains dry.

Typical properties

Appearance: white powder

pH of a 1% solution: ~2.5

Bulk density: 1.04g/cm2

Freezing point: not applicable

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Effective against inorganic deposits and scales
• Effective against iron fouling
• Compatible with both polyamide and cellulose acetate membranes
• Effective against aluminium based foulants
• Effective against many species of micro-organism
• NSF listed

IWE CC11 has been developed as a general-purpose membrane cleaner for an extensive range of organic based foulants found in Reverse Osmosis and Nano-filtration membrane systems. IWE CC11 is particularly effective against aluminium silicate, which can be difficult to remove with conventional cleaners.

Application

IWE CC11 is highly effective when used as a 2 – 3% solution at the highest pH permitted by the membrane manufacturer. IWE CC11 should be alternately soaked and recycled through the membrane system for 4 – 6 hours. Cleaning with warm cleaning solutions will considerably improve the cleaning performance. After cleaning, the membrane system should be thoroughly flushed out, until the pH values of the feed and the discharge are the same. Cleaning solutions using IWE CC11 have a tendency to foam. IWE CC11 can be diluted and is soluble to ~27% w/w in water at 20ºC.

Health and Safety

IWE CC11 is a powder blend of mixed cleaners, including a surfactant, fully biodegradable sequestrant and inorganic phosphate. It is compatible with carbon steel and commonly used materials of construction in membrane plants and CIP installations. A material safety data sheet is available on request.

Classification

CHIP: Corrosive | UN: Corrosive

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is two years under normal storage conditions. Ensure the drums remain well sealed and the Genesol 703 remains dry.

Typical properties

Appearance: white powder

pH of a 2% solution: 12.0

Bulk density: 0.95

Freezing point: not applicable

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Removes most organic and inorganic deposits
• Cost effective powdered product
• Compatible with all polyamide membranes
• Removes aluminium silicate
• Excellent for alkaline prewash.
• NSF registered

IWE CC12 has been developed as a general-purpose cleaner for a wide range of organic based foulants found in Reverse Osmosis and Nano-filtration membrane systems. IWE CC12 is particularly effective against aluminium silicate, which can be difficult to remove with conventional cleaners. It is also effective against most micro-organisms such as bacteria, fungi and algae. 

Application

IWE CC12 should be used as a 1 – 2% solution at a stabilised pH of 11.8 – 12.3 in membranes with ‘light’ organic fouling. IWE CC12 should be alternately soaked and recycled through the membrane system for 2 – 4 hours; cleaning with warm solutions considerably improves the cleaning performance. After cleaning, the membrane system should be thoroughly flushed, until the pH values of the feed and the discharge are the same. Cleaning solutions of IWE CC12 will have a tendency to foam. IWE CC12 contains bubble generating technology to gently agitate and lift membrane foulants away from the surface increasing cleaning efficiency IWE CC12 is readily soluble in water. Solutions of IWE CC12 should be used immediately after preparation.

Health and Safety

IWE CC12 is a powder blend of mixed cleaners, including a surfactant, a biodegradable sequestrant, an inorganic phosphate and a rapidly deactivated biocide. It is compatible with carbon steel and commonly used materials of construction found in membrane plants and CIP installations. Protective clothing should be used. A material safety data sheet is available on request.

Classification

CHIP: Corrosive | UN: Corrosive

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

Under normal storage conditions the shelf life of IWE CC12 is 1-2 years. Ensure the packaging is sealed after use and the IWE CC12 remains dry.

Typical properties

Appearance: white powder

pH of a 1% solution: ~12

Bulk density: ~1.3 – 1.4 g/cm2

Freezing point: not applicable

• Suitable for use in Reverse Osmosis (RO) and NanoFiltration (NF) membranes
• Removes most organic deposits
• Cost effective powdered product
• Compatible with all polyamide membranes
• Removes aluminium silicate
• Effective against a wide range of biofilm
• NSF listed

To minimise membrane fouling and reduce cleaning frequency the silt density index (SDI) should be kept as low as possible. IWE FL2 can be used to improve the performance of filtration equipment and has been developed as a general-purpose flocculant for use in surface, well and process waters with medium to high SDI values. IWE FL2 is compatible with polyamide membranes and does not foul membranes like conventional iron and aluminium based coagulants. 

Application

IWE FL2 should be dosed continuously to the feed water allowing at least 5 minutes contact time before filtration. Dose rate can be optimised by on site jar testing and SDI analysis. Typical dose rate of IWE FL2 is 1- 4 mg/L. IWE FL2 can be diluted and is fully miscible with water in all proportions.

Health and Safety

IWE FL2 is an aqueous solution of a polyquaternary amine. It is compatible with carbon steel and other commonly used materials of construction. Observe all safety precautions shown in the material safety data sheet, available on request.

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is two years under normal storage conditions. IWE FL2 is a viscous liquid at low temperatures.

Typical properties

Appearance: pale liquid

pH as supplied: 5.0 – 7.0

Specific gravity: 1.03 – 1.05

Freezing point: -2°C

• Improves the performance of filtration equipment
• Effective against a wide range of particulate matter
• Compatible with polyamide membranes
• Reduces plant cleaning frequency

IWE FL3 is used to improve the performance of filtration equipment. It has been developed as a general purpose (low molecular weight) flocculant for use in surface, well and process waters of medium to high SDI. IWE FL3 conforms to European Standard EN 1408: 1998 “Chemicals used for treatment of water intended for human consumption – polyDADMAC”. Other flocculants from the IWE product range are available as required. 

Application

IWE FL3 can be diluted and is fully miscible with water in all proportions. IWE FL3 should be dosed continuously to the feed water, (at a turbulent location to ensure good mixing) allowing at least five minutes contact time before filtration. IWE FL3 can often reduce and sometimes eliminate the need for the prior addition of inorganic coagulants such as aluminium sulphate, ferric sulphate, etc. Typical dose rate of IWE FL3 is 2 – 5 mg/L.

Health and Safety

IWE FL3 is an aqueous solution of a cationic homopolymer. It is mildly corrosive to carbon steel so recommended materials for storage tanks etc. include stainless steel, fibre glass, polyethylene and polypropylene. A material safety data sheet is available on request.

Classification

CHIP: Not Classified | UN: Non Hazardous

Packaging

Available as 25 ltr keg, 250 ltr drum or 1000 ltr IBC.

The shelf life is two years under normal storage conditions. IWE FL3 is a viscous liquid at low temperatures.

Typical properties

Appearance: clear pale liquid

pH as supplied: 5.5 – 7.5

Specific gravity: 1.02 – 1.04

Freezing point: 2°C

• Improves the performance of filtration equipment
• Effective against a wide range of particulate matter
• Stable to degradation by chlorine
• Effective over a wide pH range
• Liquid product, easy to use
• Approved for use in potable water applications
• NSF Listing