Industrial grade sodium bicarbonate (baking soda, NaHCO₃) is a versatile alkaline sorbent widely adopted in environmental protection engineering. It is the core raw material for SDS dry flue gas desulfurization and also used for pH regulation in industrial wastewater treatment. This article explains its working principle, benefits and particle selection tips for environmental projects.
1. Flue Gas Desulfurization (SDS Dry Sorbent Injection)
SDS dry desulfurization uses ultra-fine industrial sodium bicarbonate powder injected into high-temperature flue gas (140–260°C). Under heat, NaHCO₃ decomposes and forms porous activated sodium carbonate, which quickly neutralizes acidic pollutants including SO₂, SO₃, HCl and HF in flue gas. The reaction products are dry solid salts captured by bag filters.
Main advantages of sodium bicarbonate SDS desulfurization
High removal efficiency: Over 95% for SO₂ and up to 99% for HCl.
Zero wastewater generation, no white plume, simpler layout than wet limestone scrubbing.
Low corrosion to equipment, less investment in anti-corrosion structures.
Flexible for boilers, waste incinerators, cement kilns and glass furnaces.
Particle customization: Ultra-fine powder is required to guarantee reaction activity.
Recommended particle size: Ultra-fine milled powder for SDS desulfurization. Coarse particles cannot reach sufficient specific surface area and will reduce pollutant removal performance.
2. Wastewater Treatment: pH Adjustment & Acid Waste Neutralization
Industrial wastewater often contains excess acid from chemical, electroplating, textile and mining production. Industrial sodium bicarbonate acts as a mild alkaline agent to raise and stabilize water pH value. Compared with strong alkalis such as caustic soda, it brings gentler pH changes and reduces the risk of overshooting the target pH.
Core benefits in wastewater treatment
Mild alkalinity, easy to control pH without sharp fluctuations.
Reduces precipitation of heavy metal ions after pH adjustment.
Safer handling and storage, lower risk of chemical burns.
Suitable for continuous-flow wastewater treatment and batch neutralization tanks.
Less scaling on pipelines and pumps.
3. Key Selection Tips for Environmental Projects
Grade: Must choose industrial grade sodium bicarbonate for environmental use. Food grade is unnecessary and increases cost.
Particle Size: Flue gas desulfurization requires ultra-fine powder; wastewater pH adjustment can use standard powder or medium granules.
Quality stability: Consistent purity and particle distribution guarantee stable treatment effect across batches. Each shipment can be supplied with COA.
4. Our Supply Support
We provide industrial grade sodium bicarbonate customized for environmental projects. We can adjust particle size specially for SDS dry desulfurization and wastewater neutralization. Available packaging includes 25kg PE-lined woven bags and 1000kg jumbo bags. OEM service is available. Free samples can be sent for lab and pilot testing before bulk orders.
Contact Us
If you need industrial sodium bicarbonate for flue gas desulfurization or wastewater pH adjustment, send your project parameters and required particle size. Our team will provide technical recommendation and competitive bulk price.
