A Photovoltaic Project in Yancheng City

The project has a treatment capacity of 3,000 m3/day and involves wastewater from a photovoltaic enterprise. Longantai Enviro. applied its independently developed multistage catalytic oxidation technology, fluoride removal technology, and autotrophic denitrification technology to efficiently remove fluoride ions and total nitrogen from the wastewater. While removing residual hard-to-degrade pollutants, the process also improves biodegradability, reducing the load on subsequent biochemical treatment processes. The final effluent meets the receiving standards of the downstream wastewater treatment plant: COD < 350, ammonia nitrogen < 45, total nitrogen < 70, and total phosphorus < 8. This contributes to the ongoing implementation of energy conservation, emission reduction, and green development, as well as the continuous advancement of carbon neutrality goals, supporting the photovoltaic industry in maintaining its rapid growth.

Wastewater Quality: There is a high concentration of organic matters, poor biodegradability, high fluoride ion content, and elevated total netrogen leveles

Influent Water Volume: 3000 m3/d

Process Description: The main components include structures such as an equalization tank, emergency tank, sedimentation tank, fluoride removal reaction tank, sulfur autotrophic denitrification tank, pH adjustment tank, high-efficiency sedimentation tank, anaerobic tank, A/O biochemical tank, secondary sedimentation tank, and sludge thickening tank. Equipment includes the LEM micro-electrolysis reactor and Fenton fluidized bed. Additional facilities include a backwash blower room and backwash pump room, sewage treatment plant effluent discharge pipeline, emergency wastewater pipeline, reclaimed water pipeline, sludge treatment workshop, dosing room, deodorization room, and a comprehensive building.