As part of an ongoing mission to deliver sustainable infrastructure, Hebei Leihong Fiberglass Technology Co., Ltd. recently completed the delivery and installation of arched GRP cover systems at a municipal wastewater treatment plant (WWTP). This project highlights the increasing global demand for odor control, structural protection, and operational efficiency in sewage treatment facilities.
Project Overview
The installation involved a series of large, arched fiberglass covers mounted across sedimentation tanks and sludge basins. The covers were custom-fabricated to meet the exact dimensions and design layout of the facility, ensuring perfect integration with the plant's ventilation and odor collection system.
The photo shows the finished installation under cloudy skies, with covers fully sealed and aligned along the central walkway. These covers are connected to a ducted exhaust system, enabling controlled air extraction for further treatment through biofilters or scrubbers.
✅ Why GRP Covers?
Compared to traditional steel or concrete covers, GRP (Glass Reinforced Plastic) covers offer a number of technical and environmental advantages:
Excellent corrosion resistance against H₂S, ammonia, and other gases
High mechanical strength with lightweight structure
Long service life in outdoor, humid environments
Easy to transport and install, with reduced labor costs
Airtight sealing for odor control and rainwater exclusion
Each cover was equipped with integrated maintenance ports and modular sliding systems, allowing operational staff to access internal components without full disassembly.
Environmental & Operational Benefits
By sealing open tanks, the plant now reports significantly reduced odor emissions, better air quality for staff, and improved relationships with the surrounding community. The closed system also minimizes rainwater intrusion, which helps maintain treatment efficiency and prevents dilution of sludge concentration.
Hebei Leihong provided the project with full engineering support, including CAD modeling, installation guidance, and transport logistics.
Global Supply, Local Impact
This project reflects Leihong's capacity to deliver customized FRP solutions for wastewater facilities around the world. The company continues to support WWTP, STP, and ETP clients in improving infrastructure through corrosion-resistant, low-maintenance fiberglass technology.
For more information about our GRP cover systems or to request a quotation for your next project, contact us today.