Views: 0 Author: Site Editor Publish Time: 2025-06-19 Origin: Site
Hebei Huayu Environmental Engineering Co., Ltd manufactures flat membrane microporous diffuser air discs engineered for low‑energy, high‑efficiency aeration in both municipal and industrial water‑treatment systems. These disc diffusers generate uniform, radial bubble plumes via thousands of precisely formed micropores.
Product Description
Each air disc comprises a cast‑iron or stainless‑steel backing plate, over which a flat membrane of EPDM or PTFE rubber is tension‑mounted. The membrane features evenly spaced micropores (0.2–0.8 mm) that produce fine bubbles, facilitating rapid oxygen transfer. Stainless‑steel fasteners and captive clamps ensure a secure seal and simplify membrane replacement.
Performance Characteristics
Under typical operating pressures (0.03–0.10 MPa), the disc diffuser releases 15–25 L/min of air per 0.015 m² of membrane, achieving oxygen transfer efficiencies of 2.0–3.0 kg O₂/kWh. Its low head loss (< 2 kPa) reduces blower energy requirements, contributing to overall plant efficiency.
Installation Options
Discs can be installed on rigid stainless‑steel or PVC diffuser grids, or mounted on flexible airlines for floating diffuser systems. Color‑coded clamps help ensure correct alignment, while quick‑disconnect fittings allow individual disc removal for inspection and cleaning without system shutdown.
Cleaning and Longevity
Membranes can be removed and soaked in mild alkaline solutions to dissolve biofilm and scale. The backing plates are designed with drip‑trays to prevent backplate corrosion. Expected membrane life exceeds five years under normal operating conditions, with membrane replacement guided by differential‑pressure trends.
Applications
Flat membrane air discs are widely used in aeration basins, membrane bioreactors (MBRs), and oxidation ditches. Their uniform diffusion pattern promotes aerobic conditions essential for nitrification and denitrification processes, contributing to stable biological treatment performance.
