Water Treatment Chemicals – Solutions from CleanFlow

Water Treatment Chemicals: Ensuring Clean and Safe Water

Water treatment chemicals and tools are essential components of modern water purification systems. These substances and devices not only ensure that water is safe for consumption and industrial use, but also enhance the efficiency and durability of treatment infrastructure.

Key Functions of Water Treatment Chemicals

Water treatment chemicals fall into three primary categories: process chemicals, specialty chemicals, and disinfectants.

Process Chemicals remove impurities directly from the water. Coagulants like aluminum sulfate and ferric sulfate help bind suspended solids into larger particles for easier removal. Flocculants—typically water-soluble polymers—further support this by aggregating these particles. Neutralizing agents such as sodium hydroxide or calcium carbonate help balance pH levels, optimizing chemical reactions and safeguarding infrastructure.
Specialty Chemicals improve system performance and longevity. Corrosion inhibitors, for example, protect metal components by preventing oxidative damage. Antifoam agents control foam buildup in treatment tanks, while activated carbon effectively removes organic pollutants like pesticides through adsorption.
Disinfection Chemicals, such as sodium hypochlorite, are used to kill bacteria, viruses, and other pathogens in the final stages of water treatment, ensuring the water is safe for distribution.

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Sodium Hypochlorite 12%

Sodium Hypochlorite 12% is a high-efficiency industrial bleach widely used for water disinfection, certified by NSF/ANSI Standard 60 for safe use in drinking water up to 70 mg/L. With a high chlorine concentration (12–15%) and Kosher certification, it ensures strong, pure, and reliable disinfection performance.

Aluminum Sulphate Granular

Aluminum Sulphate Granular is a water treatment chemical used to coagulate impurities in raw water, enabling their removal through sedimentation or dissolved air flotation. It is available in 25 kg granular form, typically bulk shipped on pallets.

Soda Ash / Sodium Carbonate

Soda Ash / Sodium Carbonate is an odourless white powder used as a water softener and pH adjuster in municipal pools. It comes in two forms—light (bulk density: 48 lbs/ft³) and dense (56.2–65 lbs/ft³)—both certified to NSF/ANSI Standard 60 for use in drinking water up to 100 mg/L.

FAQs

1. Why is pH adjustment critical in the water purification process?

Maintaining the correct pH level in water treatment is vital because it enhances the effectiveness of other chemicals, prevents corrosion or scaling in pipelines, and ensures water is safe for consumption; neutralizing agents like sodium hydroxide or soda ash are commonly used to balance the pH depending on the water’s natural acidity or alkalinity.

2. What makes sodium hypochlorite an effective water disinfectant?

Sodium hypochlorite, especially at industrial-grade concentrations like 12%, is widely used in water treatment due to its strong oxidizing power that rapidly kills bacteria, viruses, and algae; it's NSF-certified for drinking water use and is valued for its effectiveness, though it requires careful handling and frequent replenishment due to potency loss over time.

3. Are water treatment chemicals safe for human consumption when used properly?

Yes, water treatment chemicals are safe when used according to regulatory standards like NSF/ANSI 60, which certifies chemicals such as sodium hypochlorite and soda ash for use in drinking water up to specific concentrations, ensuring they disinfect effectively without leaving harmful residues.

4. Why does sodium hypochlorite lose potency over time, and how should it be stored?

Sodium hypochlorite degrades gradually, losing about 1% of its chlorine concentration per month due to exposure to heat and light; to maximize its effectiveness, it should be stored in cool, shaded areas in chemically resistant containers and reordered regularly, typically every 2–3 months, to maintain proper disinfection levels.

5. How do I choose between light and dense soda ash for water treatment?

The choice between light and dense soda ash depends on your application needs: light soda ash is less dense and ideal for processes requiring rapid solubility, while dense soda ash, with a higher bulk density, is preferred for bulk storage and slower feed systems; both are certified for drinking water treatment up to 100 mg/L.