Main Categories of Water Treatment Chemicals

• Coagulants

Coagulants are used in suitable treatment processes to destabilise suspended particles so they can come together and be separated from water.

• Flocculants

Flocculants encourage smaller particles to form larger flocs, making subsequent separation or settling more effective.

• pH Control Chemicals

Acidic or alkaline chemicals can be used to bring water into a required pH range for a particular treatment process.

• Disinfection Chemicals

Selected disinfectants can be used to control microorganisms in appropriate water-treatment applications.

• Antiscalants

Antiscalant products can help reduce the formation of certain mineral deposits on membranes and other equipment when correctly selected and dosed.

• Corrosion Inhibitors

These chemicals may be used in suitable water systems to reduce corrosion-related problems in equipment and piping.

• Boiler & Cooling Water Chemicals

Specialised treatment programs can be used to manage scale, corrosion and other water-related issues in boiler and cooling systems.

Where Water Treatment Chemicals Are Used

Actual chemical selection depends on the system design and water analysis.

Technical Selection Guide

Dosage should not be estimated solely from a generic table. It should be determined through the product instructions, water analysis and treatment-system requirements.

Why Water Analysis Matters

Two plants may use the same water source but still require different treatment programs.

Important water parameters can include:

• pH
• Turbidity
• Hardness
• Alkalinity
• TDS
• Conductivity
• Chloride
• Sulphate
• Iron
• Silica
• Organic load
• Microbiological characteristics

For wastewater, additional parameters such as COD, BOD, suspended solids and other site-specific contaminants may be relevant.

Water analysis helps identify what needs to be controlled and provides a more reliable basis for chemical selection.

Water Treatment Chemicals for RO Systems

Reverse osmosis systems can be sensitive to scaling, fouling and biological growth.

Depending on the feed-water characteristics, suitable treatment chemicals may be used for:

• Scale prevention
• Membrane protection
• Pretreatment
• Cleaning
• Microbial control

An antiscalant suitable for one RO feed-water composition may not be appropriate for another. Therefore, chemical selection should be based on water chemistry and membrane-system conditions.

Chemicals for Boiler Water Treatment

Boiler systems require careful water management because untreated or poorly controlled water can contribute to:

• Scale formation
• Corrosion
• Deposits
• Reduced heat-transfer efficiency
• Operational problems

A boiler-water treatment program may involve different chemicals for feedwater, condensate, internal treatment and related systems.

The correct treatment depends on boiler pressure, feedwater characteristics and operating conditions.

Cooling Tower Chemical Requirements

Cooling systems can face several challenges simultaneously.

Treatment programs may address:

Scale + Corrosion + Microbial Growth

Depending on the system, suitable chemicals can include scale-control products, corrosion inhibitors and biocides.

Water chemistry, cycles of concentration, temperature and operating conditions should be considered when establishing the treatment program.

ETP & STP Chemical Requirements

Effluent and sewage treatment plants may use chemicals at different stages of the treatment process.

These can include products for:

• Coagulation
• Flocculation
• pH correction
• Sludge conditioning
• Disinfection
• Other process-specific treatment requirements

Chemical dosing should be established according to the plant’s treatment process and incoming wastewater characteristics.

How to Select the Right Water Treatment Chemical

A practical selection process involves:

• Identify the Treatment System

ETP, STP, RO, boiler, cooling tower or another system.

• Understand the Water Problem

Determine whether the main issue is scale, corrosion, suspended solids, pH, microbial growth or another contaminant.

• Review Water Analysis

Laboratory data provides a better basis for chemical selection.

• Select the Appropriate Chemistry

Choose a chemical compatible with the process and equipment.

• Establish the Dosage

Use supplier recommendations, treatment calculations and trial results where appropriate.

• Monitor the Results

Regular water testing helps determine whether the treatment program is achieving the desired outcome.

Packaging & Supply Options

Depending on the chemical, products may be supplied in:

• HDPE containers
• Carboys
• Drums
• Bags
• Pails
• Other compatible packaging

Packaging should be selected according to the chemical’s physical properties and storage requirements.

Bulk supply can also be discussed for industrial plants with regular consumption.

Storage & Safe Handling

Water treatment chemicals can have very different safety characteristics. Before handling any product, users should refer to its Safety Data Sheet (SDS).

Depending on the chemical, storage may require:

• Proper ventilation
• Temperature control
• Protection from moisture
• Separation from incompatible chemicals
• Appropriate PPE
• Clearly labelled containers
• Suitable spill-management arrangements

Chemical mixing should only be performed according to the manufacturer’s instructions.

Why Choose Sohum Industrial Sales Corporation?

Sohum Industrial Sales Corporation supplies Water Treatment Chemicals for industrial and commercial water-management requirements across West Bengal, Kolkata, Odisha, Chhattisgarh, Bihar, Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland & Tripura.

The company can cater to requirements for:

• ETP chemicals
• STP chemicals
• RO chemicals
• Boiler water-treatment chemicals
• Cooling-tower chemicals
• Coagulants
• Flocculants
• Antiscalants
• pH-control chemicals
• Corrosion inhibitors
• Disinfection chemicals
• Other application-specific treatment products

The focus is on matching the chemical with the water condition and treatment objective, rather than recommending the same product for every application.

Water Treatment Starts With the Water Itself

A successful chemical-treatment program begins by understanding the water being treated. Once the water chemistry, equipment, process and treatment target are known, the appropriate chemical and dosing approach can be selected more effectively.

Sohum Industrial Sales Corporation supplies Water Treatment Chemicals for industrial, commercial and process-water applications throughout eastern and northeastern India.

Frequently Asked Questions