RO CHEMICALS BY TYPE – CLEANERS

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 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 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