High-Efficiency Coagulant

Ferric Sulphate [Fe₂(SO₄)₃]

A proven, high-performance iron-based coagulant used for clarification, phosphorus removal, organic matter reduction, and improved solids separation in water and wastewater treatment.

11–13%Iron as Fe
40–50%Solution
4–11pH Range
10–100mg/L

High-Performance Iron Coagulant for Clean Water

Ferric Sulphate [Fe₂(SO₄)₃] is a proven, high-performance iron-based coagulant used globally for clarification, phosphorus removal, and organic matter reduction in water and wastewater treatment. Our premium Ferric Sulphate is produced under strict quality controls to deliver consistent iron content and excellent floc characteristics.

It is a preferred coagulant for municipal and industrial plants requiring effective particle destabilization, stronger floc formation, and improved solids settling. The product works across a broad pH range and supports stable treatment performance even when raw water quality varies.

Ferric Sulphate creates larger, denser, and faster-settling flocs that improve clarification, reduce turbidity, and support higher plant throughput.

Clarification

Improves particle destabilization and settling for cleaner final water.

Phosphorus Removal

Supports phosphorus precipitation to meet stringent discharge and reuse limits.

Organic Reduction

Helps remove natural organic matter and reduce DBP precursor load.

Technical Specifications

Ferric Sulphate is a ferric iron salt formulated for stable, high-efficiency coagulation across a broad range of raw water qualities and plant conditions.

Chemical Formula

Fe₂(SO₄)₃ — ferric iron sulfate, a highly effective inorganic coagulant.

Iron Content

11–13% as Fe in typical liquid product, ensuring strong coagulating performance.

Appearance

Reddish-brown acidic liquid or yellowish powder, ready for dosing in treatment systems.

Operating Range

Effective coagulation pH range of 4.0–11.0 with optimal performance between 5.0 and 7.5.

How Ferric Sulphate Works

When added to water, Ferric Sulphate hydrolyzes to form ferric hydroxide flocs that neutralize negative colloids, capture suspended particles, and adsorb organics.

01

Hydrolysis

Ferric sulfate reacts in water to form ferric hydroxide species with strong coagulating activity.

02

Charge Neutralization

Neutralizes negatively charged colloids, enabling particle destabilization and aggregation.

03

Enmeshment

Suspended solids and colloids become trapped within larger ferric hydroxide flocs.

04

Organic Adsorption

Adsorbs natural organic matter and other contaminant species that contribute to color and turbidity.

05

Settling

Produces larger, denser, and faster-settling flocs that improve clarification and filtration performance.

Result: better solids removal, stronger clarification, reduced turbidity, and improved plant throughput.

Key Performance Benefits

Ferric Sulphate excels in cold water, variable raw water quality, and high-organic loading scenarios, delivering strong floc formation and effective treatment efficiency.

Cold Water Performance

Maintains strong coagulation even in colder operating conditions.

Stronger Flocs

Produces flocs that resist shear and settle faster for higher clarification quality.

Lower Turbidity

Improves settled and filtered water quality with reduced residual turbidity.

Reduced Backwash

Supports lower filter backwash frequency and improved operational continuity.

Lower Chemical Consumption

High performance can reduce total coagulant usage for cost-effective operation.

Better Sludge Management

Helps reduce sludge volumes and improve handling or conditioning performance.

Organic Control

Supports NOM removal and DBP precursor control for healthier treated water.

Potable Water Suitability

Low manganese and heavy metal impurities support potable water applications where approved.

Primary Treatment Uses

Ferric Sulphate is applied across municipal, industrial, and wastewater processes where efficient coagulation, precipitation, and solids separation are essential.

Municipal & Industrial Water Clarification

Used to clarify raw water and process water with improved solids capture and reduced turbidity.

Enhanced Coagulation

Effective for NOM reduction and DBP precursor control to improve finished water quality.

Phosphorus Removal

Supports compliance with discharge limits, typically targeting less than 1 mg/L phosphorus.

Sludge Conditioning & Dewatering

Improves conditioning and solids handling for sludge processing and dewatering systems.

Color & Turbidity Reduction

Effective for treating surface water with elevated color, suspended solids, and variable quality.

Wastewater Treatment

Supports solids separation, nutrient control, and downstream treatment performance across industrial systems.

Why Choose Ferric Sulphate

Ferric Sulphate is a dependable and efficient coagulant that supports stronger clarification, better phosphorus control, and more resilient treatment performance.

Broad pH Performance

Effective across 4.0–11.0 with optimum performance in 5.0–7.5.

Fast, Dense Floc Formation

Creates strong flocs that settle quickly and resist shear.

Better Organic Control

Helps reduce color, turbidity, and DBP precursor load.

Lower Chemical Consumption

High reactivity can reduce the total dose needed in many systems.

Improved Throughput

Supports higher achieved plant throughput with smoother operations.

Sludge Efficiency

Improves sludge conditioning and supports efficient solids handling.

Reliable Water Quality

Provides consistent performance across changing raw water conditions.

Sustainability

Supports circular economy goals with effective sludge management and environmental compliance.

Jar Testing, Dosing, and Storage Support

We provide jar testing, pilot studies, storage recommendations, and dosing system design support. Typical dosages range from 10–100 mg/L depending on water characteristics. Storage should be in corrosion-resistant tanks with proper solvent compatibility and handling controls to preserve product stability and plant safety. This ensures reliable application and minimizes operational issues across the process lifecycle.

Need a Reliable Ferric Sulphate Solution?

Our technical team can support jar testing, dosing recommendations, and plant design to match your raw water quality and treatment goals.