Desalination and Reverse Osmosis

Desalination and Reverse Osmosis (RO) Treatment

Reverse Osmosis (RO) has become a cornerstone technology for producing high-quality water across industrial and commercial applications. However, RO membranes are highly sensitive to operational challenges. Over time, suspended solids, microorganisms, organic matter, and mineral scale can build up on the membrane surface. This fouling leads to loss in output and/or rejection levels, Pressure drop and eventually diminished system performance.

To combat these issues, advanced chemical treatment programs have been developed. Antiscalants, antifoulants, and RO membrane cleaners are formulated to prevent deposits from forming, minimize fouling, and optimize the performance of the RO system membranes. By keeping membranes clean and protected, RO systems can operate efficiently with lower energy consumption and extended membrane service life.

HydroGuard provides a complete RO treatment program that combines preventive and corrective solutions, ensuring system reliability and cost-effectiveness. Our offering includes.

Product Details

Brackish

Product Name

Composition

Comments

RO Guard 710

Phosphonate based antiscalant

Brackish water antiscalant

RO Guard 550

Food grade neutralized phosphonates

Food grade antiscalant for drinking water application

RO Guard 900

Neutralized phosphonate based antiscalant

BWRO high calcium carbonate

Membra Guard 02

Highly active acidic detergent product

Acidic membrane cleaner

Membra Guard 12

Highly active alkaline detergent product

Alkaline membrane cleaner

Sea Water

RO Guard 200

Phosphonate based antiscalant

SWRO water antiscalant for low metal contamination

RO Guard 200 C

Phosphonate based antiscalant

SWRO water antiscalant for high flux operation

RO Guard 16 Plus

Acrylic based antiscalant

SWRO water antiscalant for Si, CaSO4, CaCO3

RO Guard 16

Acrylic based antiscalant

SWRO water antiscalant for Si, CaSO4, CaCO3

Scale Guard 81H01

Sodium metabisulphite base inhibitor

Dechlorination chemicals for RO plant

Bio Guard 19

DBNPA based antifoulants/biocides

Antifoulants/biocides

Bio Guard 11

Chlorine based biocide

Powerful chlorine based biocide

CO-GUARD 14

Coagulant for wastewater application

Liquid ferric chloride for pre-treatment

Corro Guard 480R

Polymer based silica inhibitor for RO system

Silica inhibitor

Product Details

Brackish

Product Name

Composition

Comments

RO Guard 710

Phosphonate based antiscalant

Brackish water antiscalant

RO Guard 550

Food grade neutralized phosphonates

Food grade antiscalant for drinking water application

RO Guard 900

Neutralized phosphonate based antiscalant

BWRO high calcium carbonate

Membra Guard 02

Highly active acidic detergent product

Acidic membrane cleaner

Membra Guard 12

Highly active alkaline detergent product

Alkaline membrane cleaner

Sea Water

RO Guard 200

Phosphonate based antiscalant

SWRO water antiscalant for low metal contamination

RO Guard 200 C

Phosphonate based antiscalant

SWRO water antiscalant for high flux operation

RO Guard 16 Plus

Acrylic based antiscalant

SWRO water antiscalant for Si, CaSO4, CaCO3

RO Guard 16

Acrylic based antiscalant

SWRO water antiscalant for Si, CaSO4, CaCO3

Scale Guard 81H01

Sodium metabisulphite base inhibitor

Dechlorination chemicals for RO plant

Bio Guard 19

DBNPA based antifoulants/biocides

Antifoulants/biocides

Bio Guard 11

Chlorine based biocide

Powerful chlorine based biocide

CO-GUARD 14

Coagulant for wastewater application

Liquid ferric chloride for pre-treatment

Corro Guard 480R

Polymer based silica inhibitor for RO system

Silica inhibitor

FAQs

What is reverse osmosis, and why is pre-treatment important?

RO is a process that forces water through a semipermeable membrane to remove dissolved salts, organics, and pathogens. HydroGuard emphasizes pre-treatment, including softening, sediment filtration, and chlorine removal, to protect membranes and ensure long-term performance.

What are the signs that an RO membrane needs cleaning?

Indicators include pressure drop increase, reduced permeate flow, and elevated permeate conductivity. HydroGuard provides scheduled maintenance programs and chemical cleaning protocols to restore membrane performance without downtime.

How does HydroGuard enhance RO system performance?

Through comprehensive monitoring, pre-treatment, antiscalant application, and targeted cleaning, HydroGuard ensures RO systems achieve high recovery rates, minimal downtime, and consistent water quality.

How does fouling occur in RO membranes, and how is it prevented?

Fouling results from particulates, biofilms, and organic matter building on membranes. HydroGuard implements antiscalants, periodic cleaning, and biocide dosing to prevent fouling, maintaining consistent water flow and salt rejection.

What is HydroGuard’s approach to RO membrane CIP (Cleaning-In-Place)?

HydroGuard designs CIP programs based on membrane analysis and foulant type. Alkaline cleaners remove organic and biological deposits, while acidic cleaners dissolve mineral scales. Our formulations include surfactants, chelants, and dispersants, and are applied through a controlled recirculation process with temperature and flow optimization, restoring >95% of original membrane performance.

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