Taking the tail water of sewage treatment plants as raw water, it integrates the ecological treatment technologies of "constructed wetland purification + aquatic plant absorption + microbial transformation". After grille interception and sedimentation tank pretreatment, it utilizes the adsorption and filtration of wetland substrates (soil, sand and gravel), the absorption and enrichment functions of submerged plants (such as Vallisneria natans and Hydrilla verticillata), as well as the degradation of microorganisms to deeply remove pollutants such as nitrogen, phosphorus and trace organic matter. It deeply purifies water quality and simultaneously constructs a composite system of "water treatment + ecological restoration + landscape", contributing to the construction of low-carbon cities.

Treatment Process