Chemicals in RO Plant – Essential for Efficiency and Longevity
In a Reverse Osmosis (RO) water treatment plant, chemicals play a crucial role in ensuring the system operates smoothly, delivers high-quality water, and lasts longer. These chemicals are not just optional additives—they are integral to the performance, protection, and maintenance of the RO membranes and related components.

Key Types of RO Plant Chemicals
Antiscalant

Purpose: Prevents scaling caused by hardness salts (e.g., calcium carbonate, calcium sulfate).

Effect: Keeps membranes clean and extends their lifespan by reducing scale formation.

pH Booster

Purpose: Raises the pH of permeate water (which becomes acidic after RO).

Effect: Prevents corrosion in pipes and storage tanks, making the water safer and more stable.

Membrane Cleaner

Types:

Acidic cleaners – Remove inorganic scales like metal oxides and carbonate.

Alkaline cleaners – Remove organic fouling, biofilms, and oil residues.

Effect: Restores membrane performance and flow rate, reduces pressure drop.

Chlorine or Biocide (Pre-treatment)

Purpose: Disinfects feedwater to kill bacteria and microorganisms.

Note: Must be removed before entering membranes, as chlorine damages RO membranes.

Dechlorination Chemicals (e.g., Sodium Metabisulfite)

Purpose: Removes chlorine after pre-treatment before water enters the membrane.

Effect: Protects membranes from oxidative damage.

Coagulants and Flocculants (if used in pre-treatment)

Purpose: Remove suspended particles and turbidity from raw water.

Effect: Reduces membrane fouling and improves filtration efficiency.

Why These Chemicals Matter
🛡️ Protect Membranes from scale, fouling, and microbial growth.

💧 Improve Water Quality by stabilizing pH and removing contaminants.

⚙️ Ensure System Efficiency with reduced downtime and fewer cleanings.

💰 Lower Operating Costs by extending membrane life and reducing chemical use.

At INPURE UNIT, with over 10 years of industry expertise, we offer a full range of RO-compatible water treatment chemicals that are high-purity, effective, and safe for both commercial and industrial applications.