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Introduction: The Dust Problem in Mining and Transportation

Dust pollution generated during coal mining, transportation, stockpiling, and handling poses severe health risks to workers, contaminates the environment, and creates safety hazards such as explosion risks and reduced visibility. Traditional dust control methods—water spraying, chemical foams, or mechanical covers—often fall short in terms of durability, cost-effectiveness, or environmental impact. Water alone evaporates quickly, and many chemical binders can be corrosive, toxic, or non-biodegradable.

In recent years, polymer-based dust suppressants have emerged as a superior solution. These high-molecular-weight materials—especially those derived from natural sources—offer outstanding binding capacity at low concentrations, are easy to use, and are safe for both workers and the environment.

Why Xanthan Gum? The Ideal Polymer for Dust Suppression

Xanthan gum is a neutral water-soluble polysaccharide produced by microbial fermentation (typically from Xanthomonas campestris). It is non-toxic, fully biodegradable, and demonstrates excellent stability across a wide range of pH, temperature, salinity, and enzymatic conditions. Key properties that make it ideal for dust suppression include:

High viscosity at low concentrations – Even 0.1–0.5% solutions exhibit strong thickening and binding power.

Pseudoplasticity – Shear-thinning behavior allows easy spraying while maintaining film integrity after application.

Synergistic interactions – Blends well with other polysaccharides like guar gum for enhanced performance.

Excellent film-forming ability – Forms a tough, continuous protective layer on treated surfaces.

The Mechanism: How Xanthan Gum-Based Dust Suppressants Work

Our specially formulated dust suppressant Nourisi xanthan gum, operates through a multi-mechanism approach:

Network formation – Xanthan gum molecular chains crosslink to create a three-dimensional network structure.

Ionic bridging – Ionic groups in the polymer backbone exhibit strong affinity with dust particles, enhancing capture and adhesion.

Agglomeration and encapsulation – Fine dust particles are physically trapped, adsorbed, and aggregated into larger clusters firmly held within the polymer grid.

Surface film formation – Upon drying, a continuous, high-strength film forms on the material surface, providing long-lasting protection even under wind, rain, and freeze-thaw cycles.

As a biodegradable, non-toxic, and non-corrosive material, it offers a sustainable alternative to traditional chemical dust suppressants.

01 Product Advantages & Performance

Easy Preparation and Application

No heating required – simply mix powder with water under ambient temperature using conventional stirring equipment.

Solution preparation time: 30–60 minutes (depending on concentration).

Compatible with standard spray equipment (mounted, mobile, or tower-mounted).

Outstanding Dust Suppression Efficiency

After application on coal piles, a continuous and intact hard crust forms within hours.

The crust remains complete after multiple days of wind, sun exposure, repeated rainfall, and freeze-thaw cycles.

Effectively suppresses both static and dynamic dust emissions.

Safe and Environmentally Friendly

Raw material Nourisi xanthan gum is a natural polysaccharide, non-toxic, non-corrosive, and fully biodegradable.

Meets stringent heavy metal limits (see product specifications below).

Cost-Effective

Compared to other products at similar price points, Nourisi Xanthan Gum delivers higher viscosity and binding capacity at lower concentrations.

Application rate: ~3 kg/m² (solution) — resulting in low per-square-meter cost and excellent cost-performance ratio.

Comparative Performance Test

A field trial using boiler-grade coal as a substrate was conducted against a well-established commercial dust suppressant. Our Nourisi xanthan gum achieved virtually identical dust suppression performance, with comparable crust strength and longevity.

02 Product Specifications

03 Application Areas & Usage Instructions

Application Scenarios

Usage Guidelines

1. Railway Coal & Mineral Transport Dust Suppression

Equipment: Specialized railway dust suppressant spraying systems (gantry type, swing arm, etc.) with integrated dissolution tank and storage.

Solution concentration: Mix xanthan gum powder with water at a ratio of 1:100 by weight.

Preparation: Slowly add powder into water under continuous stirring for 30–60 minutes until fully dissolved.

Application: Single spray at the loading station.

2. Construction Site Dust Suppression

Equipment: Mist sprayer, fog cannon, or tower-mounted spray system.

Solution concentration: Mix at 1:500 ratio.

Preparation: Stir for 30 minutes.

Application: Use continuous or intermittent spraying from top to bottom to capture airborne dust. Repeat as needed.

3. Bulk Solid Stockpile Dust Suppression

Equipment: Truck-mounted sprayer or mobile fog cannon.

Solution concentration: Mix at 1:200 ratio.

Preparation: Stir for 30 minutes.

Application: Apply 2–3 consecutive sprays at 24-hour intervals for optimal crust formation.

4. Mine Haul Road Dust Suppression

Equipment: Water truck with spray bar or sprinkler system.

Solution concentration: Typically 1:200 to 1:500 depending on road surface conditions.

Application: Uniformly wet the road surface to a depth of 1–2 cm. Reapply based on traffic intensity and weather.

Why Choose Nourisi Xanthan Gum-Based Dust Suppressants?

High-performance at low dosage – reduces chemical usage and transportation costs.

Biodegradable & non-toxic – meets the strictest environmental regulations (e.g., EU Ecolabel, China GB standards).

Excellent weather resistance – withstands rain, UV, and freeze-thaw cycles.

Easy to handle – simple dissolution, no special equipment required.

Proven reliability – field-tested against market benchmarks.

Ready to Take Action?

For technical datasheets, sample requests, or customized formulations, please contact our team. We provide full regulatory documentation, COA, MSDS, and logistics support for international shipping.

Nourisi – Your Trusted Partner in Biopolymer Solutions.