Solution

Solution

Environmental protection industry

Core requirements

Collection of odorous gases from wastewater treatment plants, flue gas purification and emission control at waste-to-energy plants, dust control in solid waste treatment workshops, heat dissipation and corrosion prevention for environmental protection equipment, and enhanced pressure-based material conveyance.

 

Dedicated technical adaptation

• Control of Odorous Gases and Dust The oxidation ditches and sedimentation tanks at wastewater treatment plants are equipped with sealed covers. Inside these covers, a negative-pressure ventilation system is installed. The fan automatically adjusts its airflow rate based on the gas concentration. The discharged gases are treated by a biofilter to remove odors before being released into the atmosphere. At waste-to-energy plants, the waste storage pits employ negative-pressure ventilation to prevent the spread of malodorous gases. The ventilation system is linked to the incinerator; some of the odorous gases are used as combustion-supporting air and fed into the furnace, thereby achieving resource reuse.

• Deep flue gas treatment The tail end of the waste incineration furnace is equipped with a combined ventilation system comprising “semi-dry acid removal + activated carbon adsorption + baghouse dust removal + SCR denitrification.” The fan dynamically adjusts the air pressure based on flue gas temperature and composition, ensuring that particulate matter in the flue gas is ≤20 mg/m³ and nitrogen oxides are ≤200 mg/m³. The system is also fitted with an online flue gas monitoring device, and the data is uploaded to the environmental protection authorities in real time to ensure compliance with emission standards.

• Equipment Protection and Energy Saving The ventilation system in the environmental protection equipment workshop uses corrosion-resistant fans and features anti-corrosion coatings on the inner walls of the ducts, thereby preventing corrosion caused by wastewater and chemicals. Additionally, the waste heat generated from biogas power generation at the wastewater treatment plant is utilized to preheat the fresh air for winter ventilation, reducing heating energy consumption and achieving energy recycling.