Production Process: Wastewater treatment involves physical, chemical, and biological methods. Physical methods include sedimentation and filtration to remove suspended solids. Chemical methods involve neutralization, oxidation-reduction to alter pollutant properties. Biological methods use microorganisms to decompose organic matter. Advanced treatments may also include membrane processes like reverse osmosis for further purification. Role of Plate Heat Exchanger: Heat exchangers are used to regulate wastewater temperature, ensuring it is suitable for biological treatment processes. They can also recover heat from treated water, reducing energy consumption and improving overall efficiency.

Production Process: Air pollution control focuses on reducing emissions through dust removal, desulfurization, and denitrification. Dust removal methods include bag filters and electrostatic precipitators. Desulfurization often uses the limestone-gypsum process, while denitrification employs selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR). Role of Plate Heat Exchanger: Heat exchangers recover heat from high-temperature exhaust gases, lowering their temperature for safe release and reusing the heat for other processes. This reduces energy waste and lowers operational costs.

Production Process: Desulfurization and denitrification are key processes in reducing sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) emissions. Desulfurization commonly uses the limestone-gypsum process, where limestone reacts with SO₂ to form gypsum. Denitrification employs selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR) to convert NOₓ into nitrogen and water.
Role of Plate Heat Exchanger: Heat exchangers are used to recover heat from the flue gases before and after the desulfurization and denitrification processes. This recovered heat can be reused in other parts of the plant, improving energy efficiency and reducing the overall carbon footprint.