Comprehensive management project of a flood drainage river in Hebei

The incoming water for this project primarily comes from one of the major drainage rivers, which has not undergone systematic treatment for many years, resulting in poor water quality with excessive total nitrogen levels. Longantai Environmental Protection has applied its independently developed LSF series of eco-specific filter media for river systems to build an ecological denitrification system, an underwater oxygen-rich forest system, and an artificial wetland system. These systems have improved the river water quality, contributing to the total nitrogen reduction plan in the Bohai Rim region.

Wastewater Quality:

Inflow parameters: COD ≤ 30 mg/L, ammonia nitrogen ≤ 1.5 mg/L, total phosphorus ≤ 0.3 mg/L.
Effluent parameters: COD ≤ 20 mg/L, ammonia nitrogen ≤ 1.0 mg/L, total phosphorus ≤ 0.2 mg/L.

Influent Water Volume: 25000m3/d

Process Description: Process Description: The river water flows through an LSF-AW laminar flow denitrification system (with LAT-DBA and LAT-NC eco-filter media), followed by an underwater oxygen-rich forest system and a wetland system. The project includes structures such as a pump station, clean water tank, and the necessary inflow and collection pipelines.